@article{Schneider2010,
  author    = {Schneider, Hans Julius},
  title     = {"Higher rates may not be expressed" : the "Ethical" and the limits of language in the early? Wittgenstein},
  issn      = {0012-1045},
  year      = {2010},
  language  = {en}
}
@article{Faber2010,
  author    = {Faber, Eike},
  title     = {The Visigoths as the other},
  series = {Espacio, tiempo y forma : revista de la Facultad de Geografia e Historia / Universidad Nacional de Educaci{\´o}n a Distancia. Serie 2, Historia antigua},
  journal   = {Espacio, tiempo y forma : revista de la Facultad de Geografia e Historia / Universidad Nacional de Educaci{\´o}n a Distancia. Serie 2, Historia antigua},
  number    = {22},
  publisher = {Univ.},
  address   = {Madrid},
  issn      = {2340-1370},
  doi       = {10.5944/etfii.22.2009.1751},
  pages     = {287 -- 296},
  year      = {2010},
  abstract  = {An analysis of Roman -Visigothic relations in different terms than the usual presupposition of constant military and confessional/Christia n antagonism. Structuralist methodology demonstrates how Roman needs at precise historical moments determ in e how Visigoths were perceived and, therefore, portrayed in our source.},
  language  = {en}
}
@article{HohensteinKliegl2010,
  author    = {Hohenstein, Sven and Kliegl, Reinhold},
  title     = {Semantic preview benefit in eye movements during reading : a parafoveal fast-priming study},
  issn      = {0278-7393},
  doi       = {10.1037/A0020233},
  year      = {2010},
  abstract  = {Eye movements in reading are sensitive to foveal and parafoveal word features. Whereas the influence of orthographic or phonological parafoveal information on gaze control is undisputed, there has been no reliable evidence for early parafoveal extraction of semantic information in alphabetic script. Using a novel combination of the gaze- contingent fast-priming and boundary paradigms, we demonstrate semantic preview benefit when a semantically related parafoveal word was available during the initial 125 ms of a fixation on the pretarget word (Experiments 1 and 2). When the target location was made more salient, significant parafoveal semantic priming occurred only at 80 ms (Experiment 3). Finally, with short primes only (20, 40, 60 ms), effects were not significant but were numerically in the expected direction for 40 and 60 ms (Experiment 4). In all experiments, fixation durations on the target word increased with prime durations under all conditions. The evidence for extraction of semantic information from the parafoveal word favors an explanation in terms of parallel word processing in reading.},
  language  = {en}
}
@article{SimpsonVanMeirvenneLucketal.2010,
  author    = {Simpson, David and Van Meirvenne, Marc and Luck, Erika and Bourgeois, Jean and Ruhlmann, J{\"o}rg},
  title     = {Prospection of two circular Bronze Age ditches with multi-receiver electrical conductivity sensors (North Belgium)},
  issn      = {0305-4403},
  doi       = {10.1016/j.jas.2010.03.017},
  year      = {2010},
  abstract  = {Two types of electrical conductivity sensors were evaluated to prospect circular ditches surrounding former Bronze Age burial mounds, complementing aerial photography. The first sensor was based on the electrical resistivity (ER) method, while the second sensor was based on frequency-domain electromagnetic induction (FDEM). Both sensors were designed with multiple receivers, which measure several depth sensitivities simultaneously. First, the sensors were tested on an experimental site where a rectangular structure with limited dimensions was dug in a sandy soil. The structure appeared as a higher conductivity anomaly in the low-conductivity sand. Then, both methods were applied on two Bronze Age sites with different soil properties, which were discovered by aerial photography. The first site, in a sandy soil, gave only very weak anomalies. Soil augering revealed that the ditch filling consisted of the same sandy material as the surrounding, therefore this filling was not able to cause a high-conductivity contrast. Due to its lower sensitivity to noise in the low-conductive range, the ER-sensor produced a more pronounced anomaly than the FDEM-sensor. The second site was located on top of a ridge with a shallow substrate of Tertiary, coastal sediments. The ditch was very clearly visible on the sensor maps as a conductive low. At this location, the soil augering revealed that the ditch was dug through an alternating clay-sand layer and subsequently filled up with silty material from the topsoil. Overall, the shallow receiver separation produced anomalies that were both stronger and that corresponded better to the geometry of the ditches. The other receiver separations provided more information on the natural soil layering, and in the case of the ER-array they could be used to obtain a cross-section of the actual electrical conductivity with 2-D inversion modelling. The results of this study proofed that conductivity sensors can detect Bronze Age ditches, with varying contrast depending on the soil geomorphology. Moreover, the sensor maps combined with soil observations by coring provided insight in the environmental conditions that influence the contrast of the anomalies seen on the aerial photographs and the sensor maps.},
  language  = {en}
}
@article{SimpsonVanMeirvenneLucketal.2010,
  author    = {Simpson, David and Van Meirvenne, Marc and Luck, Erika and Ruhlmann, J{\"o}rg and Saey, Timothy and Bourgeois, Jean},
  title     = {Sensitivity of multi-coil frequency domain electromagnetic induction sensors to map soil magnetic susceptibility},
  issn      = {1351-0754},
  doi       = {10.1111/j.1365-2389.2010.01261.x},
  year      = {2010},
  abstract  = {Magnetic susceptibility is an important indicator of anthropogenic disturbance in the natural soil. This property is often mapped with magnetic gradiometers in archaeological prospection studies. It is also detected with frequency domain electromagnetic induction (FDEM) sensors, which have the advantage that they can simultaneously measure the electrical conductivity. The detection level of FDEM sensors for magnetic structures is very dependent on the coil configuration. Apart from theoretical modelling studies, a thorough investigation with field models has not been conducted until now. Therefore, the goal of this study was to test multiple coil configurations on a test field with naturally enhanced magnetic susceptibility in the topsoil and with different types of structures mimicking real archaeological features. Two FDEM sensors were used with coil separations between 0.5 and 2 m and with three coil orientations. First, a vertical sounding was conducted over the undisturbed soil to test the validity of a theoretical layered model, which can be used to infer the depth sensitivity of the coil configurations. The modelled sounding values corresponded well with the measured data, which means that the theoretical models are applicable to layered soils. Second, magnetic structures were buried in the site and the resulting anomalies measured to a very high resolution. The results showed remarkable differences in amplitude and complexity between the responses of the coil configurations. The 2-m horizontal coplanar and 1.1-m perpendicular coil configurations produced the clearest anomalies and resembled best a gradiometer measurement.},
  language  = {en}
}
@article{SperfeldSchmidtkeGaedkeetal.2010,
  author    = {Sperfeld, Erik and Schmidtke, Andrea and Gaedke, Ursula and Weithoff, Guntram},
  title     = {Productivity, herbivory, and species traits rather than diversity influence invasibility of experimental phytoplankton communities},
  issn      = {0029-8549},
  doi       = {10.1007/s00442-010-1594-4},
  year      = {2010},
  abstract  = {Biological invasions are a major threat to natural biodiversity; hence, understanding the mechanisms underlying invasibility (i.e., the susceptibility of a community to invasions by new species) is crucial. Invasibility of a resident community may be affected by a complex but hitherto hardly understood interplay of (1) productivity of the habitat, (2) diversity, (3) herbivory, and (4) the characteristics of both invasive and resident species. Using experimental phytoplankton microcosms, we investigated the effect of nutrient supply and species diversity on the invasibility of resident communities for two functionally different invaders in the presence or absence of an herbivore. With increasing nutrient supply, increased herbivore abundance indicated enhanced phytoplankton biomass production, and the invasion success of both invaders showed a unimodal pattern. At low nutrient supply (i.e., low influence of herbivory), the invasibility depended mainly on the competitive abilities of the invaders, whereas at high nutrient supply, the susceptibility to herbivory dominated. This resulted in different optimum nutrient levels for invasion success of the two species due to their individual functional traits. To test the effect of diversity on invasibility, a species richness gradient was generated by random selection from a resident species pool at an intermediate nutrient level. Invasibility was not affected by species richness; instead, it was driven by the functional traits of the resident and/or invasive species mediated by herbivore density. Overall, herbivory was the driving factor for invasibility of phytoplankton communities, which implies that other factors affecting the intensity of herbivory (e.g., productivity or edibility of primary producers) indirectly influence invasions.},
  language  = {en}
}
@article{WilkeO'BrienAltenbergeretal.2010,
  author    = {Wilke, Franziska Daniela Helena and O'Brien, Patrick J. and Altenberger, Uwe and Konrad-Schmolke, Matthias and Khan, M. Ahmed},
  title     = {Multi-stage reaction history in different eclogite types from the Pakistan Himalaya and implications for exhumation processes},
  issn      = {0024-4937},
  doi       = {10.1016/j.lithos.2009.07.015},
  year      = {2010},
  abstract  = {Metabasites were sampled from rock series of the subducted margin of the Indian Plate, the so-called Higher Himalayan Crystalline, in the Upper Kaghan Valley, Pakistan. These vary from corona dolerites, cropping out around Saif- ul-Muluk in the south, to coesite-eclogite close to the suture zone against rocks of the Kohistan arc in the north. Bulk rock major- and trace-element chemistry reveals essentially a single protolith as the source for five different eclogite types, which differ in fabric, modal mineralogy as well as in mineral chemistry. The study of newly-collected samples reveals coesite (confirmed by in situ Raman spectroscopy) in both garnet and omphacite. All eclogites show growth of amphiboles during exhumation. Within some coesite-bearing eclogites the presence of glaucophane cores to barroisite is noted whereas in most samples porphyroblastic sodic-calcic amphiboles are rimmed by more aluminous calcic amphibole (pargasite, tschermakite, and edenite). Eclogite facies rutile is replaced by ilmenite which itself is commonly surrounded by titanite. In addition, some eclogite bodies show leucocratic segregations containing phengite, quartz, zoisite and/or kyanite. The important implication is that the complex exhumation path shows stages of initial cooling during decompression (formation of glaucophane) followed by reheating: a very similar situation to that reported for the coesite-bearing eclogite series of the Tso Morari massif, India, 450 km to the south-east.},
  language  = {en}
}
@article{WronskiWacherHammondetal.2010,
  author    = {Wronski, Torsten and Wacher, Timothy and Hammond, Robert L. and Winney, Bruce and Hundertmark, Kris J. and Blacket, Mark J. and Mohammed, Osama B. and Flores, Benito and Omer, Sawsan A. and Macasero, William and Plath, Martin and Tiedemann, Ralph and Bleidorn, Christoph},
  title     = {Two reciprocally monophyletic mtDNA lineages elucidate the taxonomic status of Mountain gazelles (Gazella gazella)},
  issn      = {1477-2000},
  doi       = {10.1080/14772001003613192},
  year      = {2010},
  abstract  = {Mountain gazelles (Gazella gazella) rank among the most critically endangered mammals on the Arabian Peninsula. Past conservation efforts have been plagued by confusion about the phylogenetic relationship among various 'phenotypically discernable' populations, and even the question of species boundaries was far from being certain. This lack of knowledge has had a direct impact on conservation measures, especially ex situ breeding programmes, hampering the assignment of captive stocks to potential conservation units. Here, we provide a phylogenetic framework, based on the analysis of mtDNA sequences (360 bp cytochrome b and 213 bp Control Region) of 126 individuals collected from the wild throughout the Arabian Peninsula and from captive stocks. Our analyses revealed two reciprocally monophyletic genetic lineages within the presumed species Gazella gazella: one 'northern clade' on the Golan Heights (Israel/Syrian border) and one genetically diverse larger clade from the rest of the Arabian Peninsula including the Arava Valley (Negev, Israel). Applying the Strict Phylogenetic Species Concept (sensu Mishler \& Theriot, 2000) allows assigning species status to these two major clades.},
  language  = {en}
}
@article{ApioKabasaKetmaieretal.2010,
  author    = {Apio, Ann and Kabasa, John David and Ketmaier, Valerio and Schroeder, Christoph and Plath, Martin and Tiedemann, Ralph},
  title     = {Female philopatry and male dispersal in a cryptic, bush-dwelling antelope : a combined molecular and behavioural approach},
  issn      = {0952-8369},
  doi       = {10.1111/j.1469-7998.2009.00654.x},
  year      = {2010},
  abstract  = {In most mammals, females are philopatric while males disperse in order to avoid inbreeding. We investigated social structure in a solitary ungulate, the bushbuck Tragelaphus sylvaticus in Queen Elizabeth National Park, Uganda by combining behavioural and molecular data. We correlated spatial and social vicinity of individual females with a relatedness score obtained from mitochondrial DNA analysis. Presumed clan members shared the same haplotype, showed more socio-positive interactions and had a common home range. Males had a higher haplotype diversity than females. All this suggests the presence of a matrilineal structure in the study population. Moreover, we tested natal dispersal distances between male and female yearlings and used control region sequences to confirm that females remain in their natal breeding areas whereas males disperse. In microsatellite analysis, males showed a higher genetic variability than females. The impoverished genetic variability of females at both molecular marker sets is consistent with a philopatric and matrilineal structure, while the higher degree of genetic variability of males is congruent with a higher dispersal rate expected in this sex. Evidence even for male long-distance dispersal is brought about by one male carrying a haplotype of a different subspecies, previously not described to occur in this area.},
  language  = {en}
}
@article{EppStoofTrauthetal.2010,
  author    = {Epp, Laura Saskia and Stoof, Kathleen R. and Trauth, Martin H. and Tiedemann, Ralph},
  title     = {Historical genetics on a sediment core from a Kenyan lake : intraspecific genotype turnover in a tropical rotifer is related to past environmental changes},
  issn      = {0921-2728},
  doi       = {10.1007/s10933-009-9379-7},
  year      = {2010},
  abstract  = {Using molecular genetic methods and an ancient DNA approach, we studied population and species succession of rotifers of the genus Brachionus in the Kenyan alkaline-saline crater lake Sonachi since the beginning of the 19th century as well as distribution of Brachionus haplotypes in recent and historic sediments of other lakes of the East African Rift System. The sediment core record of Lake Sonachi displays haplotypes of a distinct evolutionary lineage in all increments. Populations were dominated by a single mitochondrial haplotype for a period of 150 years, and two putatively intraspecific turnovers in dominance occurred. Both changes are concordant with major environmental perturbations documented by a profound visible change in sediment composition of the core. The first change was very abrupt and occurred after the deposition of volcanic ash at the beginning of the 19th century. The second change coincides with a major lake level lowstand during the 1940s. It was preceded by a period of successively declining lake level, in which two other haplotypes appeared in the lake. One of these putatively belongs to another species documented in historical and recent Kenyan lake sediments. The analysis of plankton population dynamics through historical time can reveal patterns of population persistence and turnover in relation to environmental changes.},
  language  = {en}
}
@article{StephTiedemannPrangeetal.2010,
  author    = {Steph, Silke and Tiedemann, Ralph and Prange, Matthias and Groeneveld, J{\"u}rgen and Schulz, Michael Karl and Timmermann, Axel and N{\"u}rnberg, Dirk and R{\"u}hlemann, Carsten and Saukel, Cornelia and Haug, Gerald H.},
  title     = {Early Pliocene increase in thermohaline overturning : a precondition for the development of the modern equatorial Pacific cold tongue},
  issn      = {0883-8305},
  doi       = {10.1029/2008pa001645},
  year      = {2010},
  abstract  = {Unraveling the processes responsible for Earth's climate transition from an "El Nino-like state" during the warm early Pliocene into a modern-like "La Nina-dominated state" currently challenges the scientific community. Recently, the Pliocene climate switch has been linked to oceanic thermocline shoaling at similar to 3 million years ago along with Earth's final transition into a bipolar icehouse world. Here we present Pliocene proxy data and climate model results, which suggest an earlier timing of the Pliocene climate switch and a different chain of forcing mechanisms. We show that the increase in North Atlantic meridional overturning circulation between 4.8 and 4.0 million years ago, initiated by the progressive closure of the Central American Seaway, triggered overall shoaling of the tropical thermocline. This preconditioned the turnaround from a warm eastern equatorial Pacific to the modern equatorial cold tongue state about 1 million years earlier than previously assumed. Since similar to 3.6-3.5 million years ago, the intensification of Northern Hemisphere glaciation resulted in a strengthening of the trade winds, thereby amplifying upwelling and biogenic productivity at low latitudes.},
  language  = {en}
}
@article{SilvaIturrizaKetmaierTiedemann2010,
  author    = {Silva-Iturriza, Adriana and Ketmaier, Valerio and Tiedemann, Ralph},
  title     = {Mitochondrial DNA suggests multiple colonizations of central Philippine islands (Boracay, Negros) by the sedentary Philippine bulbul Hypsipetes philippinus guimarasensis (Aves)},
  issn      = {0947-5745},
  doi       = {10.1111/j.1439-0469.2010.00566.x},
  year      = {2010},
  abstract  = {In this study, we have used fragments of three mitochondrial genes (Control Region, CR; transfer RNA for methionine, tRNA-Met; NADH dehydrogenase subunit 2, ND2 for a total of 1066 bp) to reconstruct the phylogeographic history of the endemic Philippine bulbul (Hypsipetes philippinus) at the scale of the central area of the Philippine archipelago. The study includes two of the five recognized subspecies (guimarasensis and mindorensis), 7 populations and 58 individuals. Multiple phylogenetic and network analyses support the existence of two reciprocally monophyletic maternal lineages corresponding to the two named subspecies. Molecular clock estimates indicate that the split between the two subspecies is consistent with the Pleistocene geological history of the archipelago. Patterns of relationships within guimarasensis are biogeographically less clear. Here, a combination of vicariance and dispersal needs to be invoked to reconcile the molecular data with the geographical origin of samples. In particular, the two islands Boracay and Negros host mitochondrial lineages that do not form monophyletic clusters. Our genetic data suggest multiple independent colonization events for these locations.},
  language  = {en}
}
@misc{Wischer2010,
  author    = {Wischer, Ilse},
  title     = {Simone E. Pfenninger: Grammaticalization paths of english and high german existential constructions : a corpus-based study / rezensiert von Ilse Wischer},
  series = {Zeitschrift f{\"u}r Dialektologie und Linguistik : ZDL},
  volume    = {77},
  journal   = {Zeitschrift f{\"u}r Dialektologie und Linguistik : ZDL},
  number    = {3},
  issn      = {0044-1449},
  pages     = {372 -- 375},
  year      = {2010},
  abstract  = {Rezensiertes Werk: Simone E. Pfenninger: Grammaticalization paths of english and high german existential constructions : a corpus-based study / Bern: Lang, 2009. - XI, 369 S. - (European University Studies: Series 21, Linguistics Vol. 345)},
  language  = {en}
}
@phdthesis{Bulut2010,
  author    = {Bulut, Fatih},
  title     = {Seismicity and fault kinematics of the North Anatolian fault zone along the 1999 Izmit rupture and its transition to the Marmara seismic gap},
  pages     = {VII, 98 S.},
  year      = {2010},
  language  = {en}
}
@article{ScherberEisenhauerWeisseretal.2010,
  author    = {Scherber, Christoph and Eisenhauer, Nico and Weisser, Wolfgang W. and Schmid, Bernhard and Voigt, Winfried and Fischer, Markus and Schukze, Ernst-Detlef and Roscher, Christiane and Weigelt, Alexandra and Allan, Eric and Beßler, Holger and Bonkowski, Michael and Buchmann, Nina and Buscot, Fran{\c{c}}ois and Clement, Lars W. and Ebeling, Anne and Engels, Christof and Halle, Stefan and Kertscher, Ilona and Klein, Alexandra Maria and Koller, Robert and K{\"o}nig, Stephan and Kowalski, Esther and Kummer, Volker and Kuu, Annely and Lange, Markus and Lauterbach, Dirk},
  title     = {Bottom-up effects of plant diversity on multitrophic interactions in a biodiversity experiment},
  issn      = {0028-0836},
  year      = {2010},
  language  = {en}
}
@phdthesis{Raettig2010,
  author    = {Raettig, Tim},
  title     = {The cortical infrastructure of language processing: evidence from functional and anatomical neuroimaging},
  series = {MPI series in human cognitive and brain sciences},
  volume    = {119},
  journal   = {MPI series in human cognitive and brain sciences},
  publisher = {Max Planck Inst. for Human Cognitive and Brain Sciences},
  address   = {Leipzig},
  isbn      = {978-3-941504-03-5},
  pages     = {181 S.},
  year      = {2010},
  language  = {en}
}
@article{ShklyaevStraube2010,
  author    = {Shklyaev, Sergey and Straube, Arthur V.},
  title     = {Superexponential droplet fractalization as a hierarchical formation of dissipative compactons},
  issn      = {1539-3755},
  doi       = {10.1103/Physreve.82.020601},
  year      = {2010},
  abstract  = {We study the dynamics of a thin film over a substrate heated from below in a framework of a strongly nonlinear one-dimensional Cahn-Hilliard equation. The evolution leads to a fractalization into smaller and smaller scales. We demonstrate that a primitive element in the appearing hierarchical structure is a dissipative compacton. Both direct simulations and the analysis of a self-similar solution show that the compactons appear at superexponentially decreasing scales, which means vanishing dimension of the fractal.},
  language  = {en}
}
@article{WuZhouChenetal.2010,
  author    = {Wu, Ye and Zhou, Changsong and Chen, Maoyin and Xiao, Jinghua and Kurths, J{\"u}rgen},
  title     = {Human comment dynamics in on-line social systems},
  issn      = {0378-4371},
  doi       = {10.1016/j.physa.2010.08.049},
  year      = {2010},
  abstract  = {Human comment is studied using data from 'tianya' which is one of the most popular on-line social systems in China. We found that the time interval between two consecutive comments on the same topic, called inter-event time, follows a power-law distribution. This result shows that there is no characteristic decay time on a topic. It allows for very long periods without comments that separate bursts of intensive comments. Furthermore, the frequency of a different ID commenting on a topic also follows a power-law distribution. It indicates that there are some "hubs" in the topic who lead the direction of the public opinion. Based on the personal comments habit, a model is introduced to explain these phenomena. The numerical simulations of the model fit well with the empirical results. Our findings are helpful for discovering regular patterns of human behavior in on-line society and the evolution of the public opinion on the virtual as well as real society.},
  language  = {en}
}
@article{YuryevKascheIgnatovaetal.2010,
  author    = {Yuryev, Ruslan and Kasche, Volker and Ignatova, Zoya and Galunsky, Boris},
  title     = {Improved A. faecalis penicillin amidase mutant retains the thermodynamic and pH stability of the wild type enzyme},
  issn      = {1572-3887},
  doi       = {10.1007/s10930-010-9238-4},
  year      = {2010},
  abstract  = {Penicillin amidase from Alacaligenes faecalis is an attractive biocatalyst for hydrolysis of penicillin G for production of 6-aminopenicillanic acid, which is used in the synthesis of semi-synthetic beta-lactam antibiotics. Recently a mutant of this enzyme with extended C-terminus of the A-chain comprising parts of the connecting linker peptide was constructed. Its turnover number for the hydrolysis of penicillin G was 140 s(-1), about twice of the value for the wild-type enzyme (80 s(-1)). At the same time the specificity constant was improved about three-fold. The wild- type and the mutant enzymes showed similar pH stability suggesting that the linker peptide fragment covalently attached to the A-chain does not alter the electrostatic interactions in the protein core. Although the global stability of A. faecalis wild-type enzyme and the T206GS213G variant does not differ, the presence of the linker fragment stabilizes the domains interface, as evidenced by the monophasic transition of the mutant enzyme from folded to unfolded state during urea-induced denaturation. The high stability and activity of the mutant enzyme provides a rationale to use it as a biocatalyst in the industrial processes, where the enzyme must be more robust to fluctuations in the operational conditions.},
  language  = {en}
}
@article{ZimmermannPapritzElsenbeer2010,
  author    = {Zimmermann, Beate and Papritz, Andreas and Elsenbeer, Helmut},
  title     = {Asymmetric response to disturbance and recovery : Changes of soil permeability under forest-pasture-forest transitions},
  issn      = {0016-7061},
  doi       = {10.1016/j.geoderma.2010.07.013},
  year      = {2010},
  abstract  = {In the humid tropics, continuing high deforestation rates are seen alongside an increasing expansion of secondary forests. In order to understand and model the consequences of these dynamic land-use changes for regional water cycles, the response of soil hydraulic properties to forest disturbance and recovery has to be quantified.At a site in the Brazilian Amazonia, we annually monitored soil infiltrability and saturated hydraulic conductivity (K-s) at 12.5, 20 cm, and 50 cm soil depth after manual forest conversion to pasture (year zero to four after pasture establishment), and during secondary succession after pasture abandonment (year zero to seven after pasture abandonment). We evaluated the hydrological consequences of the detected changes by comparing the soil hydraulic properties with site-specific rainfall intensities and hydrometric observations. Within one year after grazing started, infiltrability and K-s at 12.5 and 20 cm depth decreased by up to one order of magnitude to levels which are typical for 20-year-old pasture. In the three subsequent monitoring years, infiltrability and K-s remained stable. Land use did not impact on subsoil permeability. Whereas infiltrability values are large enough to allow all rainwater to infiltrate even after the conversion, the sudden decline of near-surface K-s is of hydrological relevance as perched water tables and overland flow occur more often on pastures than in forests at our study site. After pasture abandonment and during secondary succession, seven years of recovery did not suffice to significantly increase infiltrability and K-s at 12.5 depth although a slight recovery is obvious. At 20 cm soil depth, we detected a positive linear increase within the seven-year time frame but annual means did not differ significantly. Although more than a doubling of infiltrability and K-s is still required to achieve pre-disturbance levels, which will presumably take more than a decade, the observed slight increases of K-s might already decrease the probability of perched water table generation and overland flow development well before complete recovery.},
  language  = {en}
}
@article{SchwarzSieversBodenthinetal.2010,
  author    = {Schwarz, Guntram and Sievers, Torsten K. and Bodenthin, Yves and Hasslauer, Ires and Geue, Thomas and Koetz, Joachim and Kurth, Dirk G.},
  title     = {The structure of metallo-supramolecular polyelectrolytes in solution and on surfaces},
  issn      = {0959-9428},
  doi       = {10.1039/B926783b},
  year      = {2010},
  abstract  = {Metal ion induced self-assembly of the rigid ligand 1,4-bis(2,2':6',2 ''-terpyridine- 4'-yl) benzene (1) with Fe(II), Co(II), Ni(II) and Zn(II) acetate in aqueous solution results in extended, rigid- rod like metallosupramolecular coordination polyelectrolytes (MEPE-1). Under the current experimental conditions the molar masses range from 1000 g mol(-1) up to 500 000 g mol(-1). The molar mass depends on concentration, stoichiometry, metal-ion and time. In addition, we present viscosity measurements, small angle neutron scattering and AFM data. We introduce a protocol to precisely control the stoichiometry during self-assembly using conductometry. The protocol can be used with different terpyridine ligands and the above-mentioned metal ions and is of paramount importance to obtain meaningful and reproducible results. As a control experiment we studied the mononuclear 4'- (phenyl)2,2':6',2 ''-terpyridine (3) complex with Ni(II) and Zn(II) and the flexible ligand 1,3- bis[4'-oxa(2,2': 6',2 ''-terpyridinyl)] propane (2) with Ni(II) acetate (Ni-MEPE-2). This ligand does not form extended macroassemblies but likely ring-like structures with 3 to 4 repeat units. Through spin- coating of Ni-MEPE-1 on a solid surface we can image the MEPEs in real space by AFM. SANS measurements of Fe-MEPE-1 verify the extended rigid-rod type structure of the MEPEs in aqueous solution.},
  language  = {en}
}
@article{Vicente2010,
  author    = {Vicente, Luis},
  title     = {On the syntax of adversative coordination},
  issn      = {0167-806X},
  doi       = {10.1007/s11049-010-9094-0},
  year      = {2010},
  abstract  = {A series of studies have distinguished two types of but, namely, corrective and counterexpectational. The difference between these two types has been considered largely semantic/pragmatic. This article shows that the semantic difference also translates into a different syntax for each type of but. More precisely, corrective but always requires clause-level coordination, with apparent counterexamples being derived through ellipsis within the second conjunct. On the other hand, counterexpectational but is not restricted in this way, and offers the possibility of coordination of both clausal and subclausal constituents. From this difference, it is possible to derive a number of syntactic asymmetries between corrective and counterexpectational but.},
  language  = {en}
}
@article{SchwarzBodenthinGeueetal.2010,
  author    = {Schwarz, Guntram and Bodenthin, Yves and Geue, Thomas and Koetz, Joachim and Kurth, Dirk G.},
  title     = {Structure and properties of dynamic rigid rod-like metallo-supramolecular polyelectrolytes in solution},
  issn      = {0024-9297},
  doi       = {10.1021/Ma902057f},
  year      = {2010},
  abstract  = {Metal-ion-induced self-assembly in aqueous solution of the rigid ligand 1,4-bis(2,2':6',2 ''-terpyridine-4'-yl)benzene (1) with Fe(OAc)(2) and Ni(OAc)(2) is investigated with viscosimetry, SANS, and AFM. Ligand 1 forms extended, rigid-rod like metallo-supramolecular coordination polyeectrolytes (MEPEs) with a molar mass of up to 200 000 g mol(-1) under the Current experimental conditions. The molar mass depends oil concentration, stoichiometry, and time. By spin-coating MEPEs oil a solid surface, we call image the MEPEs in real space by AFM. Both AFM and SANS confirm the extended rigid-rod-type structure of the MEPEs. As a control experiment, we also studied the flexible ligand 1,3-bis[4'-oxa(2,2':6',2 ''-terpyridinyl)]propane (2). Ligand 2 does not form extended macro-assemblies but likely ringlike structures with three 10 four repeat units. Finally, we present it protocol to control the stoichiometry during self-assembly using conductometry, which is of paramount importance to obtain meaningful and reproducible results.},
  language  = {en}
}
@article{KummerHaneltHaneltetal.2010,
  author    = {Kummer, Volker and Hanelt, Dorothea and Hanelt, Peter and Jage, Horst and John, Heino and Richter, Heidrun and Richter, Udo and Schultz, Burkhard},
  title     = {Phyllactinia hippopha{\"e}s (Erysiphales) rediscovered in Germany},
  issn      = {1641-8180},
  year      = {2010},
  abstract  = {The Erysiphales species Phyllactinia hippopha{\"e}s Thuem. ex S. Blumer was found for the fi rst time on cultivated Sea Buckthorn (Hippopha{\"e} rhamnoides L.) near Großkayna (Saxony-Anhalt) in October 2009. This fungus was considered to be extinct in Germany. Intensive searching in Saxony-Anhalt and the Potsdam area (Brandenburg) yielded many additional records, most of them from former brown coal mining areas or in Sea Buckthorn plantations.},
  language  = {en}
}
@article{SchulzOrgzallDiezetal.2010,
  author    = {Schulz, Burkhard and Orgzall, Ingo and Diez, Isabel and Dietzel, Birgit and Tauer, Klaus},
  title     = {Template mediated formation of shaped polypyrrole particles},
  issn      = {0927-7757},
  doi       = {10.1016/j.colsurfa.2009.11.034},
  year      = {2010},
  abstract  = {The formation of different micro- and nanostructures during the chemical synthesis of polypyrrole is reviewed shortly based on the conceptions of hard- and soft-templating models. Contrary to other models that emphasize the role of micelles it is found here that during the oxidative polymerization of pyrole using sulfonic acid dopants a crystalline hard template is found in the first steps of the reaction before the addition of the oxidant. This template is formed by a complex consisting of 2,5-bis(pyrrole-2-yl)pyrrolidine and the sulfonic acid anion. The acid catalyzed formation of this specific tripyrrole is discussed. (C) 2009 Elsevier B.V. All rights reserved.},
  language  = {en}
}
@article{YanKlieglRichteretal.2010,
  author    = {Yan, Ming and Kliegl, Reinhold and Richter, Eike M. and Nuthmann, Antje and Shu, Hua},
  title     = {Flexible saccade-target selection in Chinese reading},
  issn      = {1747-0218},
  doi       = {10.1080/17470210903114858},
  year      = {2010},
  abstract  = {As Chinese is written without orthographical word boundaries (i.e., spaces), it is unclear whether saccade targets are selected on the basis of characters or words and whether saccades are aimed at the beginning or the centre of words. Here, we report an experiment where 30 Chinese readers read 150 sentences while their eye movements were monitored. They exhibited a strong tendency to fixate at the word centre in single-fixation cases and at the word beginning in multiple-fixation cases. Different from spaced alphabetic script, initial fixations falling at the end of words were no more likely to be followed by a refixation than initial fixations at word centre. Further, single fixations were shorter than first fixations in two-fixation cases, which is opposite to what is found in Roman script. We propose that Chinese readers dynamically select the beginning or centre of words as saccade targets depending on failure or success with segmentation of parafoveal word boundaries.},
  language  = {en}
}
@article{SkoczowskyJechowMenzeletal.2010,
  author    = {Skoczowsky, Danilo and Jechow, Andreas and Menzel, Ralf and Paschke, Katrin and Erbert, G{\"o}tz},
  title     = {Efficient second-harmonic generation using a semiconductor tapered amplifier in a coupled ring-resonator geometry},
  issn      = {0146-9592},
  doi       = {10.1364/OL.35.000232},
  year      = {2010},
  abstract  = {A new approach for efficient second-harmonic generation using diode lasers is presented. The experimental setup is based on a tapered amplifier operated in a ring resonator that is coupled to a miniaturized enhancement ring resonator containing a periodically poled lithium niobate crystal. Frequency locking of the diode laser emission to the resonance frequency of the enhancement cavity is realized purely optically, resulting in stable, single-frequency operation. Blue light at 488 nm with an output power of 310 mW is generated with an optical-to-optical conversion efficiency of 18\%.},
  language  = {en}
}
@article{TuominenEerikaeinenSchibalskietal.2010,
  author    = {Tuominen, Sakari and Eerik{\"a}inen, Kalle and Schibalski, Anett and Haakana, Markus and Lehtonen, Aleksi},
  title     = {Mapping Biomass Variables with a Multi-Source Forest Inventory Technique},
  issn      = {0037-5330},
  year      = {2010},
  abstract  = {Map form information on forest biomass is required for estimating bioenergy potentials and monitoring carbon stocks. In Finland, the growing stock of forests is monitored using multi-source forest inventory, where variables are estimated in the form of thematic maps and area statistics by combining information of field measurements, satellite images and other digital map data. In this study, we used the multi-source forest inventory methodology for estimating forest biomass characteristics. The biomass variables were estimated for national forest inventory field plots on the basis of measured tree variables. The plot-level biomass estimates were used as reference data for satellite image interpretation. The estimates produced by satellite image interpretation were tested by cross-validation. The results indicate that the method for producing biomass maps on the basis of biomass models and satellite image interpretation is operationally feasible. Furthermore, the accuracy of the estimates of biomass variables is similar or even higher than that of traditional growing stock volume estimates. The technique presented here can be applied, for example, in estimating biomass resources or in the inventory of greenhouse gases.},
  language  = {en}
}
@article{SezerSpricigoUteschetal.2010,
  author    = {Sezer, Murat and Spricigo, Roberto and Utesch, Tillmann and Millo, Diego and Leimk{\"u}hler, Silke and Mroginski, Maria A. and Wollenberger, Ursula and Hildebrandt, Peter and Weidinger, Inez M.},
  title     = {Redox properties and catalytic activity of surface-bound human sulfite oxidase studied by a combined surface enhanced resonance Raman spectroscopic and electrochemical approach},
  issn      = {1463-9076},
  doi       = {10.1039/B927226g},
  year      = {2010},
  abstract  = {Human sulfite oxidase (hSO) was immobilised on SAM-coated silver electrodes under preservation of the native heme pocket structure of the cytochrome b5 (Cyt b5) domain and the functionality of the enzyme. The redox properties and catalytic activity of the entire enzyme were studied by surface enhanced resonance Raman (SERR) spectroscopy and cyclic voltammetry (CV) and compared to the isolated heme domain when possible. It is shown that heterogeneous electron transfer and catalytic activity of hSO sensitively depend on the local environment of the enzyme. Increasing the ionic strength of the buffer solution leads to an increase of the heterogeneous electron transfer rate from 17 s(-1) to 440 s(- 1) for hSO as determined by SERR spectroscopy. CV measurements demonstrate an increase of the apparent turnover rate for the immobilised hSO from 0.85 s(-1) in 100 mM buffer to 5.26 s(-1) in 750 mM buffer. We suggest that both effects originate from the increased mobility of the surface-bound enzyme with increasing ionic strength. In agreement with surface potential calculations we propose that at high ionic strength the enzyme is immobilised via the dimerisation domain to the SAM surface. The flexible loop region connecting the Moco and the Cyt b5 domain allows alternating contact with the Moco interaction site and the SAM surface, thereby promoting the sequential intramolecular and heterogeneous electron transfer from Moco via Cyt b5 to the electrode. At lower ionic strength, the contact time of the Cyt b5 domain with the SAM surface is longer, corresponding to a slower overall electron transfer process.},
  language  = {en}
}
@article{SeglGuanterKaufmannetal.2010,
  author    = {Segl, Karl and Guanter, Luis and Kaufmann, Hermann and Schubert, Josef and Kaiser, Stefan and Sang, Bernhard and Hofer, Stefan},
  title     = {Simulation of spatial sensor characteristics in the context of the EnMAP Hyperspectral mission},
  issn      = {0196-2892},
  doi       = {10.1109/Tgrs.2010.2042455},
  year      = {2010},
  abstract  = {The simulation of remote sensing images is a valuable tool for defining future Earth observation systems, optimizing instrument parameters, and developing and validating data-processing algorithms. A scene simulator for optical Earth observation data has been developed within the Environmental Mapping and Analysis Program (EnMAP) hyperspectral mission. It produces EnMAP-like data following a sequential processing approach consisting of five independent modules referred to as reflectance, atmospheric, spatial, spectral, and radiometric modules. From a modeling viewpoint, the spatial module is the most complex. The spatial simulation process considers the satellite-target geometry, which is adapted to the EnMAP orbit and operating characteristics, the instrument spatial response, and the sources of spatial nonuniformity (keystone, telescope distortion and smile, and detector coregistration). The spatial module of the EnMAP scene simulator is presented in this paper. The EnMAP spatial and geometric characteristics will be described, the simulation methodology will be presented in detail, and the capability of the EnMAP simulator will be shown by illustrative examples.},
  language  = {en}
}
@article{Schwarz2010,
  author    = {Schwarz, Wolfgang},
  title     = {Comparing continuous and discrete birthday coincidences : "Same-Day" versus "Within 24 Hours"},
  issn      = {0003-1305},
  doi       = {10.1198/tast.2009.09003},
  year      = {2010},
  abstract  = {In its classical form the famous birthday problem (Feller 1968; Mosteller 1987) addresses coincidences within a discrete sample space, looking at births that fall on the same calendar day. However, coincidence phenomena often arise in situations in which it is more natural to consider a continuous-time parameter. We first describe an elementary variant of the classical problem in continuous time, and then derive and illustrate close approximate relations that exist between the discrete and the continuous formulations.},
  language  = {en}
}
@article{WilkeAppelVinczeetal.2010,
  author    = {Wilke, Max and Appel, Karen and Vincze, Laszlo and Schmidt, Christian and Borchert, Manuela and Pascarelli, Sakura},
  title     = {A confocal set-up for micro-XRF and XAFS experiments using diamond-anvil cells},
  issn      = {0909-0495},
  doi       = {10.1107/S0909049510023654},
  year      = {2010},
  abstract  = {A confocal set-up is presented that improves micro-XRF and XAFS experiment with high-pressure e diamond-anvil cells (DACs) In this experiment a probing volume is defined by the focus of the incoming synchrotron radiation beam and that of a polycapillary X-ray half-lens with a very long working distance, which is placed in front of the fluorescence detector This set-up enhances the quality of the fluorescence and XAFS spectra, and thus the sensitivity for detecting elements at low concentrations. It efficiently suppresses signal from outside the sample chamber, which stems from elastic and inelastic scattering of the incoming beam by the diamond anvils as well as from excitation of fluorescence from the body of the DAC},
  language  = {en}
}
@article{ShirzadianKhorramabadJingEvertsetal.2010,
  author    = {Shirzadian-Khorramabad, Reza and Jing, Hai-Chun and Everts, Gerja E. and Schippers, Jos H. M. and Hille, Jacques and Dijkwel, Paul P.},
  title     = {A mutation in the cytosolic O-acetylserine (thiol) lyase induces a genome-dependent early leaf death phenotype in Arabidopsis},
  issn      = {1471-2229},
  doi       = {10.1186/1471-2229-10-80},
  year      = {2010},
  abstract  = {Background: Cysteine is a component in organic compounds including glutathione that have been implicated in the adaptation of plants to stresses. O-acetylserine (thiol) lyase (OAS-TL) catalyses the final step of cysteine biosynthesis. OAS-TL enzyme isoforms are localised in the cytoplasm, the plastids and mitochondria but the contribution of individual OAS-TL isoforms to plant sulphur metabolism has not yet been fully clarified. Results: The seedling lethal phenotype of the Arabidopsis onset of leaf death3-1 (old3-1) mutant is due to a point mutation in the OAS-A1 gene, encoding the cytosolic OAS-TL. The mutation causes a single amino acid substitution from Gly(162) to Glu(162), abolishing old3-1 OAS-TL activity in vitro. The old3-1 mutation segregates as a monogenic semidominant trait when backcrossed to its wild type accession Landsberg erecta (Ler-0) and the Di-2 accession. Consistent with its semi- dominant behaviour, wild type Ler-0 plants transformed with the mutated old3-1 gene, displayed the early leaf death phenotype. However, the old3-1 mutation segregates in an 11: 4: 1 (wild type: semi-dominant: mutant) ratio when backcrossed to the Colombia-0 and Wassilewskija accessions. Thus, the early leaf death phenotype depends on two semi- dominant loci. The second locus that determines the old3-1 early leaf death phenotype is referred to as odd-ler (for old3 determinant in the Ler accession) and is located on chromosome 3. The early leaf death phenotype is temperature dependent and is associated with increased expression of defence-response and oxidative-stress marker genes. Independent of the presence of the odd-ler gene, OAS-A1 is involved in maintaining sulphur and thiol levels and is required for resistance against cadmium stress. Conclusions: The cytosolic OAS-TL is involved in maintaining organic sulphur levels. The old3-1 mutation causes genome-dependent and independent phenotypes and uncovers a novel function for the mutated OAS- TL in cell death regulation.},
  language  = {en}
}
@article{SeifertFischer2010,
  author    = {Seifert, Birgit and Fischer, Markus},
  title     = {Experimental establishment of a declining dry-grassland flagship species in relation to seed origin and target environment},
  issn      = {0006-3207},
  doi       = {10.1016/j.biocon.2010.02.028},
  year      = {2010},
  abstract  = {Supporting species persistence may involve (re)connecting suitable habitats. However, for many declining species habitat suitability and drivers of establishment are poorly known. We addressed this experimentally for a declining flagship species of dry grasslands in Germany, Armeria maritima subsp. elongata. In three regions, we sowed seeds from each of eight source populations back to their origin and to eight apparently suitable, but currently unoccupied, habitats close to the source populations. Overall, seeds germinated and seedlings established equally well in occupied and potential sites indicating that suitable habitats are available, but lack seed input. Germination and establishment varied among sowing sites. Moreover, seeds from populations of lower current connectivity established less well in new sites, and establishment was more variable among seeds from smaller than from larger populations, possibly reflecting genetic consequences of habitat fragmentation. Further, establishment across different new environments differed between seeds from different populations. As this was neither related to a home-away contrast nor to geographic or environmental distance between sites it could not clearly be attributed to local adaptation. To promote long-term persistence within this dry-grassland meta-population context we suggest increasing the density of suitable habitats and supporting dispersal connecting multiple sites, e.g. by promoting sheep transhumance, to increase current populations and their connectivity, and to colonise suitable habitats with material from different sources. We suggest that sowing experiments with characteristic species, including multiple source populations and multiple recipient sites, should be used regularly to inform connecting efforts in plant conservation.},
  language  = {en}
}
@article{ShinSommerReichetal.2010,
  author    = {Shin, Seoleun and Sommer, Matthias and Reich, Sebastian and N{\´e}vir, Peter},
  title     = {Evaluation of three spatial discretization schemes with the Galewsky et al. test},
  issn      = {1530-261X},
  doi       = {10.1002/Asl.279},
  year      = {2010},
  abstract  = {We evaluate the Hamiltonian particle methods (HPM) and the Nambu discretization applied to shallow-water equations on the sphere using the test suggested by Galewsky et al. (2004). Both simulations show excellent conservation of energy and are stable in long-term simulation. We repeat the test also using the ICOSWP scheme to compare with the two conservative spatial discretization schemes. The HPM simulation captures the main features of the reference solution, but wave 5 pattern is dominant in the simulations applied on the ICON grid with relatively low spatial resolutions. Nevertheless, agreement in statistics between the three schemes indicates their qualitatively similar behaviors in the long-term integration.},
  language  = {en}
}
@article{ThammSchmidtBernhard2010,
  author    = {Thamm, Markus and Schmidt, Stephanie L. and Bernhard, Detlef},
  title     = {Insights into the phylogeny of the genus stentor (heterotrichea, ciliophora) with special emphasis on the evolution of the macronucleus based on SSU rDNA data},
  issn      = {0065-1583},
  year      = {2010},
  abstract  = {Representatives of the genus Stentor (Stentoridae, Heterotrichea) are striking ciliates in environmental water samples because of their size (up to 4 mm) and their trumpet-like shape. Important for species identification are the following main characteristics: (1) the presence or absence of endosymbiotic algae (zoochlorellae); (2) the colour of the pigmented cortical granules, and (3) the shape of the macronucleus. The complete small subunit rDNA (SSU rDNA) of 19 further representatives of the genus Stentor was sequenced to examine the phylogenetic relationships within this genus and to determine the taxonomic value of these main characteristics. The detailed phylogenetic analyses yielded a separation of all species possessing a single compact macronucleus from those species with an "elongated" macronucleus (moniliform or vermiform). The data also indicate that the uptake of algae as well as the loss of pigmentation happened independently in different lineages. Furthermore, a high level of intraspecific variation within several species was found. Thus, S. muelleri and S. (sp.) cf. katashimai appear to represent distinct species and S. multiformis is composed of a species complex.},
  language  = {en}
}
@article{ShainyanMoskalikStarkeetal.2010,
  author    = {Shainyan, Bagrat A. and Moskalik, Mikail Yu and Starke, Ines and Schilde, Uwe},
  title     = {Formation of unexpected products in the attempted aziridination of styrene with trifluoromethanesulfonyl nitrene},
  issn      = {0040-4020},
  doi       = {10.1016/j.tet.2010.08.070},
  year      = {2010},
  abstract  = {The reaction of styrene with trifluoromethanesulfonyl nitrene generated from trifluoromethanesulfonamide in the system (t-BuOCl+NaI) results in the formation of trifluoro-N-[2-phenyl-2-(trifluoromethylsulfonyl) aminoethyl]methanesulfonamide, 1-pheny1-2-iodo-ethanol, and 2,5-diphenyl-1,4-bis(trifluoromethyl sulfonyl)piperazine rather than the expected product of aziridination, 2-phenyl-1-(trifluoromethylsulfonyl) aziridine. The mechanism of the reaction is discussed.},
  language  = {en}
}
@article{ZimmermannZimmermannLarketal.2010,
  author    = {Zimmermann, Beate and Zimmermann, Alexander and Lark, Richard M. and Elsenbeer, Helmut},
  title     = {Sampling procedures for throughfall monitoring : a simulation study},
  issn      = {0043-1397},
  doi       = {10.1029/2009wr007776},
  year      = {2010},
  abstract  = {What is the most appropriate sampling scheme to estimate event-based average throughfall? A satisfactory answer to this seemingly simple question has yet to be found, a failure which we attribute to previous efforts' dependence on empirical studies. Here we try to answer this question by simulating stochastic throughfall fields based on parameters for statistical models of large monitoring data sets. We subsequently sampled these fields with different sampling designs and variable sample supports. We evaluated the performance of a particular sampling scheme with respect to the uncertainty of possible estimated means of throughfall volumes. Even for a relative error limit of 20\%, an impractically large number of small, funnel-type collectors would be required to estimate mean throughfall, particularly for small events. While stratification of the target area is not superior to simple random sampling, cluster random sampling involves the risk of being less efficient. A larger sample support, e.g., the use of trough-type collectors, considerably reduces the necessary sample sizes and eliminates the sensitivity of the mean to outliers. Since the gain in time associated with the manual handling of troughs versus funnels depends on the local precipitation regime, the employment of automatically recording clusters of long troughs emerges as the most promising sampling scheme. Even so, a relative error of less than 5\% appears out of reach for throughfall under heterogeneous canopies. We therefore suspect a considerable uncertainty of input parameters for interception models derived from measured throughfall, in particular, for those requiring data of small throughfall events.},
  language  = {en}
}
@article{SiegmannJelicic2010,
  author    = {Siegmann, Rebekka and Jelicic, Aleksandra},
  title     = {Propagation and termination kinetics of PEGylated methacrylate radical polymerizations},
  issn      = {1022-1352},
  doi       = {10.1002/macp.200900527},
  year      = {2010},
  abstract  = {Propagation and chain-length averaged termination rate coefficients, k(p) and <k(t)>, for radical polymerizations of methacrylates carrying poly(ethylene glycol) (PEG) units are reported. kp derived from pulsed laser initiated polymerizations in bulk, in organic solvents, and in ionic liquids follows the methacrylate-type family behavior. Contrary, diffusion controlled k(t) values obtained from chemically initiated polymerizations with in-line FT- NIR monitoring of monomer conversion are strongly affected by the PEG units in the ester group. Compared to alkyl methacrylates <k(t)> is unexpectedly high. Moreover, <k(t)> of poly(ethylene glycol) ethyl ether methacrylate shows a significant reduction in k(t) already at 15\% conversion, whereas dodecyl methacrylate <k(t)> is constant up to at least 70\% conversion.},
  language  = {en}
}
@article{SchmidtZamoraLopezKurths2010,
  author    = {Schmidt, G. and Zamora-Lopez, Gorka and Kurths, J{\"u}rgen},
  title     = {Simulation of large scale cortical networks by individual neuron dynamics},
  issn      = {0218-1274},
  doi       = {10.1142/S0218127410026149},
  year      = {2010},
  abstract  = {Understanding the functional dynamics of the mammalian brain is one of the central aims of modern neuroscience. Mathematical modeling and computational simulations of neural networks can help in this quest. In recent publications, a multilevel model has been presented to simulate the resting-state dynamics of the cortico-cortical connectivity of the mammalian brain. In the present work we investigate how much of the dynamical behavior of the multilevel model can be reproduced by a strongly simplified model. We find that replacing each cortical area by a single Rulkov map recreates the patterns of dynamical correlation of the multilevel model, while the outcome of other models and setups mainly depends on the local network properties, e. g. the input degree of each vertex. In general, we find that a simple simulation whose dynamics depends on the global topology of the whole network is far from trivial. A systematic analysis of different dynamical models and coupling setups is required.},
  language  = {en}
}
@article{ZhangFedyuninMiekleyetal.2010,
  author    = {Zhang, Gong and Fedyunin, Ivan and Miekley, Oskar and Valleriani, Angelo and Moura, Alessandro and Ignatova, Zoya},
  title     = {Global and local depletion of ternary complex limits translational elongation},
  issn      = {0305-1048},
  doi       = {10.1093/Nar/Gkq196},
  year      = {2010},
  abstract  = {The translation of genetic information according to the sequence of the mRNA template occurs with high accuracy and fidelity. Critical events in each single step of translation are selection of transfer RNA (tRNA), codon reading and tRNA-regeneration for a new cycle. We developed a model that accurately describes the dynamics of single elongation steps, thus providing a systematic insight into the sensitivity of the mRNA translation rate to dynamic environmental conditions. Alterations in the concentration of the aminoacylated tRNA can transiently stall the ribosomes during translation which results, as suggested by the model, in two outcomes: either stress-induced change in the tRNA availability triggers the premature termination of the translation and ribosomal dissociation, or extensive demand for one tRNA species results in a competition between frameshift to an aberrant open-reading frame and ribosomal drop-off. Using the bacterial Escherichia coli system, we experimentally draw parallels between these two possible mechanisms.},
  language  = {en}
}
@article{SeissSpahnSchmidt2010,
  author    = {Seiß, Martin and Spahn, Frank and Schmidt, J{\"u}rgen},
  title     = {Moonlet induced wakes in planetary rings : analytical model including eccentric orbits of moon and ring particles},
  issn      = {0019-1035},
  doi       = {10.1016/j.icarus.2010.06.013},
  year      = {2010},
  abstract  = {Saturn's rings host two known moons, Pan and Daphnis, which are massive enough to clear circumferential gaps in the ring around their orbits. Both moons create wake patterns at the gap edges by gravitational deflection of the ring material (Cuzzi, J.N., Scargle, J.D. [1985]. Astrophys. J. 292, 276-290; Showalter, MR., Cuzzi, J.N., Marouf, E.A., Esposito, LW. [1986]. Icarus 66, 297-323). New Cassini observations revealed that these wavy edges deviate from the sinusoidal waveform, which one would expect from a theory that assumes a circular orbit of the perturbing moon and neglects particle interactions. Resonant perturbations of the edges by moons outside the ring system, as well as an eccentric orbit of the embedded moon, may partly explain this behavior (Porco, CC., and 34 colleagues [2005]. Science 307, 1226-1236; Tiscareno, M.S., Burns, J.A., Hedman, MM., Spitale, J.N., Porco, CC., Murray, C.D., and the Cassini Imaging team [2005]. Bull. Am. Astron. Soc. 37, 767; Weiss, J.W., Porco, CC., Tiscareno, M.S., Burns, J.A., Dones, L [2005]. Bull. Am. Astron. Soc. 37, 767; Weiss, J.W., Porco, CC., Tiscareno, M.S. [2009]. Astron. J. 138, 272-286). Here we present an extended non-collisional streamline model which accounts for both effects. We describe the resulting variations of the density structure and the modification of the nonlinearity parameter q. Furthermore, an estimate is given for the applicability of the model. We use the streamwire model introduced by Stewart (Stewart, G.R. [1991]. Icarus 94, 436-450) to plot the perturbed ring density at the gap edges. We apply our model to the Keeler gap edges undulated by Daphnis and to a faint ringlet in the Encke gap close to the orbit of Pan. The modulations of the latter ringlet, induced by the perturbations of Pan (Burns, J.A., Hedman, M.M., Tiscareno, M.S., Nicholson, P.D., Streetman, B.J., Colwell, J.E., Showalter, M.R., Murray, C.D., Cuzzi, J.N., Porco, CC., and the Cassini ISS team [2005]. Bull. Am. Astron. Soc. 37, 766), can be well described by our analytical model. Our analysis yields a Hill radius of Pan of 17.5 km, which is 9\% smaller than the value presented by Porco (Porco, CC., and 34 colleagues [2005]. Science 307, 1226- 1236), but fits well to the radial semi-axis of Pan of 17.4 km. This supports the idea that Pan has filled its Hill sphere with accreted material (Porco, C.C., Thomas, P.C., Weiss, J.W., Richardson, D.C. [2007]. Science 318, 1602-1607). A numerical solution of a streamline is used to estimate the parameters of the Daphnis-Keeler gap system, since the close proximity of the gap edge to the moon induces strong perturbations, not allowing an application of the analytic streamline model. We obtain a Hill radius of 5.1 km for Daphnis, an inner edge variation of 8 km, and an eccentricity for Daphnis of 1.5 x 10(-5). The latter two quantities deviate by a factor of two from values gained by direct observations (Jacobson, R.A., Spitale, J., Porco, C.C., Beurle, K., Cooper, N.J., Evans, M.W., Murray, C.D. [2008]. Astron. J. 135, 261-263; Tiscareno, M.S., Burns, J.A., Hedman, M.M., Spitale, J.N., Porco, C.C., Murray, C.D., and the Cassini Imaging team [2005]. Bull. Am. Astron. Soc. 37, 767), which might be attributed to the neglect of particle interactions and vertical motion in our model.},
  language  = {en}
}
@article{BaurHirschmuellerCasseletal.2010,
  author    = {Baur, Heiner and Hirschm{\"u}ller, Anja and Cassel, Michael and M{\"u}ller, Steffen and Mayer, Frank},
  title     = {Gender-specific neuromuscular activity of the M. peroneus longus in healthy runners : a descriptive laboratory study},
  issn      = {0268-0033},
  doi       = {10.1016/j.clinbiomech.2010.06.009},
  year      = {2010},
  abstract  = {Background: Gender-specific neuromuscular activity for the ankle (e.g., peroneal muscle) is currently not known. This knowledge may contribute to the understanding of overuse injury mechanisms. The purpose was therefore to analyse the neuromuscular activity of the peroneal muscle in healthy runners. Methods: Fifty-three male and 54 female competitive runners were tested on a treadmill at 3.33 m s(-1). Neuromuscular activity of the M. peroneus longus was measured by electromyography and analysed in the time domain (onset of activation, time of maximum of activation, total time of activation) in \% of stride time in relation to touchdown (= 1.0). Additionally, mean amplitudes for the gait cycle phases preactivation, weight acceptance and push-off were calculated and normalised to the mean activity of the entire gait cycle. Findings: Onset of activation (mean; female: 0.86/male: 0.90, p<0.0001) and time of maximum of activation (female: 1.13/male: 1.16, p<0.0001) occurred earlier in female compared to male and the total time of activation was longer in women (female: 0.42/male: 0.39, p=0.0036). In preactivation, women showed higher amplitudes (+ 21\%) compared to men (female: 1.16/male: 0.92, p<0.0001). Activity during weight acceptance (female: 2.26/male: 2.41, p = 0.0039) and push-off (female: 0.93/male: 1.07, p = 0.0027) were higher in men. Interpretation: Activation strategies of the peroneal muscle appear to be gender-specific. Higher preactivation amplitudes in females indicate a different neuromuscular control in anticipation of touchdown ("pre-programmed activity"). These data may help interpret epidemiologically reported differences between genders in overuse injury frequency and localisation.},
  language  = {en}
}
@article{VaterFoellerMoraetal.2010,
  author    = {Vater, Marianne and Foeller, Elisabeth and Mora, Emanuel C. and Coro, Frank and Russell, Ian J. and K{\"o}ssl, Manfred},
  title     = {Postnatal maturation of primary auditory cortex in the mustached bat, pteronotus parnellii},
  issn      = {0022-3077},
  doi       = {10.1152/jn.00517.2009},
  year      = {2010},
  abstract  = {The primary auditory cortex (AI) of adult Pteronotus parnellii features a foveal representation of the second harmonic constant frequency (CF2) echolocation call component. In the corresponding Doppler-shifted constant frequency (DSCF) area, the 61 kHz range is over-represented for extraction of frequency-shift information in CF2 echoes. To assess to which degree AI postnatal maturation depends on active echolocation or/and reflects ongoing cochlear maturation, cortical neurons were recorded in juveniles up to postnatal day P29, before the bats are capable of active foraging.At P1-2, neurons in posterior AI are tuned sensitively to low frequencies (22-45 dB SPL, 28-35 kHz). Within the prospective DSCF area, neurons had insensitive responses (>60 dB SPL) to frequencies <40 kHz and lacked sensitive tuning curve tips. Up to P10, when bats do not yet actively echolocate, tonotopy is further developed and DSCF neurons respond to frequencies of 51-57 kHz with maximum tuning sharpness (Q(10dB)) of 57. Between P11 and 20, the frequency representation in AI includes higher frequencies anterior and dorsal to the DSCF area. More multipeaked neurons (33\%) are found than at older age. In the oldest group, DSCF neurons are tuned to frequencies close to 61 kHz with Q(10dB) values <= 212, and threshold sensitivity, tuning sharpness and cortical latencies are adult-like. The data show that basic aspects of cortical tonotopy are established before the bats actively echolocate. Maturation of tonotopy, increase of tuning sharpness, and upward shift in the characteristic frequency of DSCF neurons appear to strongly reflect cochlear maturation.},
  language  = {en}
}
@phdthesis{Eckstein2010,
  author    = {Eckstein, Lars},
  title     = {Reading song lyrics},
  series = {Internationale Forschungen zur Allgemeinen und Vergleichenden Literaturwissenschaft},
  volume    = {137},
  journal   = {Internationale Forschungen zur Allgemeinen und Vergleichenden Literaturwissenschaft},
  publisher = {Rodopi},
  address   = {Amsterdam},
  isbn      = {978-90-420-3035-0},
  pages     = {291 S.},
  year      = {2010},
  language  = {en}
}
@article{Eckstein2010,
  author    = {Eckstein, Lars},
  title     = {Think global sell global : magical realism, the Whale Rider and the Market},
  isbn      = {978-90-420-3226-2},
  year      = {2010},
  language  = {en}
}
@phdthesis{Eckstein2010,
  author    = {Eckstein, Lars},
  title     = {The Culture of Lyrics},
  isbn      = {978-3-868212-259-4},
  year      = {2010},
  language  = {en}
}
@misc{Eckstein2010,
  author    = {Eckstein, Lars},
  title     = {Erll, A., Mediation, remediation and the dynamics of cultural memory; Berlin, DeGruyter, 2009},
  year      = {2010},
  language  = {en}
}
@article{CsuhajVarjuDassowVaszil2010,
  author    = {Csuhaj-Varj{\´u}, Erzs{\´e}bet and Dassow, Juergen and Vaszil, Gy{\"o}rgy},
  title     = {Variants of competence-based derivations in CD grammar systems},
  issn      = {0129-0541},
  doi       = {10.1142/S0129054110007428},
  year      = {2010},
  abstract  = {In this paper we introduce and study some new cooperation protocols for cooperating distributed (CD) grammar systems. These derivation modes depend on the number of different nonterminals present in the sentential form obtained when a component finished a derivation phase. This measure describes the competence of the grammar on the string (the competence is high if the number of the different nonterminals is small). It is also a measure of the efficiency of the grammar on the given string (a component is more efficient than another one if it is able to decrease the number of nonterminals in the string to a greater extent). We prove that if the underlying derivation mode is the t-mode derivation, then some variants of these systems determine the class of random context ET0L languages. If these CD grammar systems use the k step limited derivations as underlying derivation mode, then they are able to generate any recursively enumerable language.},
  language  = {en}
}
@article{DubinFuchsGraefetal.2010,
  author    = {Dubin, Manu and Fuchs, Joerg and Gr{\"a}f, Ralph and Schubert, Ingo and Nellen, Wolfgang},
  title     = {Dynamics of a novel centromeric histone variant CenH3 reveals the evolutionary ancestral timing of centromere biogenesis},
  issn      = {0305-1048},
  doi       = {10.1093/Nar/Gkq664},
  year      = {2010},
  abstract  = {The centromeric histone H3 variant (CenH3) serves to target the kinetochore to the centromeres and thus ensures correct chromosome segregation during mitosis and meiosis. The Dictyostelium H3-like variant H3v1 was identified as the CenH3 ortholog. Dictyostelium CenH3 has an extended N-terminal domain with no similarity to any other known proteins and a histone fold domain at its C-terminus. Within the histone fold, alpha-helix 2 (alpha 2) and an extended loop 1 (L1) have been shown to be required for targeting CenH3 to centromeres. Compared to other known and putative CenH3 histones, Dictyostelium CenH3 has a shorter L1, suggesting that the extension is not an obligatory feature. Through ChIP analysis and fluorescence microscopy of live and fixed cells, we provide here the first survey of centromere structure in amoebozoa. The six telocentric centromeres were found to mostly consist of all the DIRS-1 elements and to associate with H3K9me3. During interphase, the centromeres remain attached to the centrosome forming a single CenH3-containing cluster. Loading of Dictyostelium CenH3 onto centromeres occurs at the G2/prophase transition, in contrast to the anaphase/ telophase loading of CenH3 observed in metazoans. This suggests that loading during G2/prophase is the ancestral eukaryotic mechanism and that anaphase/telophase loading of CenH3 has evolved more recently after the amoebozoa diverged from the animal linage.},
  language  = {en}
}
@article{KruegelEngbert2010,
  author    = {Kr{\"u}gel, Andr{\´e} and Engbert, Ralf},
  title     = {On the launch-site effect for skipped words during reading},
  issn      = {0042-6989},
  doi       = {10.1016/j.visres.2010.05.009},
  year      = {2010},
  abstract  = {The launch-site effect, a systematic variation of within-word landing position as a function of launch-site distance, is among the most important oculomotor phenomena in reading. Here we show that the launch-site effect is strongly modulated in word skipping, a finding which is inconsistent with the view that the launch-site effect is caused by a saccadic-range error. We observe that distributions of landing positions in skipping saccades show an increased leftward shift compared to non-skipping saccades at equal launch-site distances. Using an improved algorithm for the estimation of mislocated fixations, we demonstrate the reliability of our results.},
  language  = {en}
}
@article{GereckeSchneiderScholtka2010,
  author    = {Gerecke, Christian and Schneider, Mandy and Scholtka, Bettina},
  title     = {Vimentin promoter methylation analysis is a suitable complement of a gene mutation marker panel for the detection of preneoplastic and neoplastic colonic lesions},
  issn      = {0378-584X},
  doi       = {10.1159/000290860},
  year      = {2010},
  abstract  = {Abstracts: Strukturen veraendern - Heilung verbessern. 29. Deutscher Krebskongress. Berlin 24.-27. Februar 201},
  language  = {en}
}
@article{ScholtkaBrossuleit2010,
  author    = {Scholtka, Bettina and Brossuleit, K.},
  title     = {Procedure for the highly sensitive enrichment and detection of the K-RAS codon 12 mutation in faeces from patients with colorectal cancer precursors},
  issn      = {0378-584X},
  year      = {2010},
  language  = {en}
}
@article{VanKleunenWeberFischer2010,
  author    = {Van Kleunen, Mark and Weber, Ewald and Fischer, Markus},
  title     = {A meta-analysis of trait differences between invasive and non-invasive plant species},
  issn      = {1461-023X},
  year      = {2010},
  abstract  = {A major aim in ecology is identifying determinants of invasiveness. We performed a meta-analysis of 117 field or experimental-garden studies that measured pair-wise trait differences of a total of 125 invasive and 196 non-invasive plant species in the invasive range of the invasive species. We tested whether invasiveness is associated with performance-related traits (physiology, leaf-area allocation, shoot allocation, growth rate, size and fitness), and whether such associations depend on type of study and on biogeographical or biological factors. Overall, invasive species had significantly higher values than non-invasive species for all six trait categories. More trait differences were significant for invasive vs. native comparisons than for invasive vs. non-invasive alien comparisons. Moreover, for comparisons between invasive species and native species that themselves are invasive elsewhere, no trait differences were significant. Differences in physiology and growth rate were larger in tropical regions than in temperate regions. Trait differences did not depend on whether the invasive alien species originates from Europe, nor did they depend on the test environment. We conclude that invasive alien species had higher values for those traits related to performance than non-invasive species. This suggests that it might become possible to predict future plant invasions from species traits.},
  language  = {en}
}
@article{FischerBurkartPasqualettoetal.2010,
  author    = {Fischer, Markus and Burkart, Michael and Pasqualetto, Vanessa and van Kleunen, Mark},
  title     = {Experiment meets biogeography : plants of river corridor distribution are not more stress tolerant but benefit less from more benign conditions elsewhere},
  issn      = {1752-9921},
  doi       = {10.1093/Jpe/Rtq013},
  year      = {2010},
  abstract  = {Aims: Factors limiting distributions of species are fundamental to ecology and evolution but have rarely been addressed experimentally for multiple species. The conspicuous linear distribution patterns of plant species confined to river corridors in the Central European lowlands constitute an especially long-standing distribution puzzle. We experimentally tested our novel hypothesis that the tolerance of species to river corridor conditions is independent of the degree of confinement to river corridor habitats, but that species not confined to river corridors are better able to take advantage of the more benign non-river corridor conditions. Methods: We grew 42 herbaceous species differing in their confinement to river corridors in a common garden experiment on loamy soil typical for river corridor areas and sandy soil typical for non-river corridor areas, and with and without a flooding period. For a subset of species, we grew plants of both river corridor and non-river corridor origin to test for adaptation to river corridor conditions. Important findings: Species more confined to river corridor areas benefited less from the more benign non-flooded and non-river corridor soil conditions than species of wider distributional range did. For subsets of 7 and 12 widespread species, the response to flooding and soil origin, respectively, did not differ between plants from river corridor sites and plants from other sites, suggesting that the habitat tolerance of widespread species is clue to phenotypic plasticity rather than to local adaptation. Overall, we found clear support for our novel hypothesis that species not confined to river corridors are more able to take advantage of the more benign non-river corridor conditions. Our study provides a general hypothesis on differences between species confined to stressful habitats and widespread species out for test in further multispecies comparative experiments.},
  language  = {en}
}
@article{ChildsWituckaWallGuentheretal.2010,
  author    = {Childs, Liam H. and Witucka-Wall, Hanna and Guenther, Torsten and Sulpice, Ronan and Korff, Maria V. and Stitt, Mark and Walther, Dirk and Schmid, Karl J. and Altmann, Thomas},
  title     = {Single feature polymorphism (SFP)-based selective sweep identification and association mapping of growth- related metabolic traits in Arabidopsis thaliana},
  issn      = {1471-2164},
  doi       = {10.1186/1471-2164-11-188},
  year      = {2010},
  abstract  = {Background: Natural accessions of Arabidopsis thaliana are characterized by a high level of phenotypic variation that can be used to investigate the extent and mode of selection on the primary metabolic traits. A collection of 54 A. thaliana natural accession-derived lines were subjected to deep genotyping through Single Feature Polymorphism (SFP) detection via genomic DNA hybridization to Arabidopsis Tiling 1.0 Arrays for the detection of selective sweeps, and identification of associations between sweep regions and growth-related metabolic traits. Results: A total of 1,072,557 high-quality SFPs were detected and indications for 3,943 deletions and 1,007 duplications were obtained. A significantly lower than expected SFP frequency was observed in protein-, rRNA-, and tRNA-coding regions and in non- repetitive intergenic regions, while pseudogenes, transposons, and non-coding RNA genes are enriched with SFPs. Gene families involved in plant defence or in signalling were identified as highly polymorphic, while several other families including transcription factors are depleted of SFPs. 198 significant associations between metabolic genes and 9 metabolic and growth-related phenotypic traits were detected with annotation hinting at the nature of the relationship. Five significant selective sweep regions were also detected of which one associated significantly with a metabolic trait. Conclusions: We generated a high density polymorphism map for 54 A. thaliana accessions that highlights the variability of resistance genes across geographic ranges and used it to identify selective sweeps and associations between metabolic genes and metabolic phenotypes. Several associations show a clear biological relationship, while many remain requiring further investigation.},
  language  = {en}
}
@book{ZangStephansson2010,
  author    = {Zang, Arno and Stephansson, Ove},
  title     = {Stress field of the earth's crust},
  publisher = {Springer Science+Business Media B.V},
  address   = {Dordrecht},
  isbn      = {978-1-402-08443-0},
  doi       = {10.1007/978-1-4020-8444-7},
  pages     = {240 S.},
  year      = {2010},
  language  = {en}
}
@article{Alnemr2010,
  author    = {Alnemr, Rehab},
  title     = {Context-aware Reputation in SOA and future internet},
  isbn      = {978-3-86956-036-6},
  year      = {2010},
  language  = {en}
}
@book{KunzeStrohe2010,
  author    = {Kunze, Karl-Kuno and Strohe, Hans Gerhard},
  title     = {Antipersistence in German Stock Returns},
  series = {Statistische Diskussionsbeitr{\"a}ge},
  volume    = {39},
  journal   = {Statistische Diskussionsbeitr{\"a}ge},
  publisher = {Univ.},
  address   = {Potsdam},
  issn      = {0949-068x},
  pages     = {16 S.},
  year      = {2010},
  language  = {en}
}
@book{OPUS4-30965,
  title     = {International and inter-organizational governance},
  editor    = {Lattemann, Christoph and Kupke, S{\"o}ren},
  publisher = {wvb Wiss. Verl.},
  address   = {Berlin},
  isbn      = {978-3-86573-532-4},
  pages     = {145 S.},
  year      = {2010},
  language  = {en}
}
@phdthesis{Kammanee2010,
  author    = {Kammanee, Athassawat},
  title     = {Some inverse potential problems},
  address   = {Potsdam},
  pages     = {XIV, 128 S.},
  year      = {2010},
  language  = {en}
}
@phdthesis{Wohlgemuth2010,
  author    = {Wohlgemuth, Steffen},
  title     = {Microbial and host factors associated with chronic intestinal inflammation of the Interleukin-10 deficient mouse},
  address   = {Potsdam},
  pages     = {IX, 125 Bl. : Ill., graph. Darst.},
  year      = {2010},
  language  = {en}
}
@phdthesis{Musunthia2010,
  author    = {Musunthia, Tiwadee},
  title     = {On the study of varieties of rings with involution},
  address   = {Potsdam},
  pages     = {IV, 89 S. : graph. Darst.},
  year      = {2010},
  language  = {en}
}
@phdthesis{Lekkoksung2010,
  author    = {Lekkoksung, Somsak},
  title     = {Hyperidentities and hypersubstitutions of many-sorted algebras},
  address   = {Potsdam},
  pages     = {X, 98 S.},
  year      = {2010},
  language  = {en}
}
@phdthesis{Wienges2010,
  author    = {Wienges, Sebastian},
  title     = {Governance in global policy networks : individual strategies and collective action in five sustainable energy- realed type II Partnership},
  publisher = {Lang},
  address   = {Frankfurt am Main},
  isbn      = {978-3-631-60311-6},
  pages     = {350 S.},
  year      = {2010},
  language  = {en}
}
@article{AbelerCalakiAndreeetal.2010,
  author    = {Abeler, Johannes and Calaki, Juljana and Andree, Kai and Basek, Christoph},
  title     = {The power of apology},
  issn      = {0165-1765},
  doi       = {10.1016/j.econlet.2010.01.033},
  year      = {2010},
  abstract  = {How should firms react to customer complaints after an unsatisfactory purchase? In a field experiment, we test the effect of different reactions and find that a cheap-talk apology yields significantly better outcomes for the firm than offering a monetary compensation.},
  language  = {en}
}
@phdthesis{Schmidt2010,
  author    = {Schmidt, Bj{\"o}rn B.},
  title     = {The Dynamics of M\&A Strategy},
  series = {Europ{\"a}ische Hochschulschriften : Series V},
  volume    = {3366},
  journal   = {Europ{\"a}ische Hochschulschriften : Series V},
  publisher = {Lang Peter GmbH Internationaler Verlag der Wissenschaften},
  address   = {Frankfurt},
  isbn      = {978-3-631-60093-1},
  issn      = {0531-7339},
  pages     = {337 S.},
  year      = {2010},
  language  = {en}
}
@book{Liero2010,
  author    = {Liero, Hannelore},
  title     = {Estimation and testing the effect of covariates in accelerated life time models under censoring},
  series = {Preprint / Universit{\"a}t Potsdam, Institut f{\"u}r Mathematik, Mathematische Statistik un},
  journal   = {Preprint / Universit{\"a}t Potsdam, Institut f{\"u}r Mathematik, Mathematische Statistik un},
  publisher = {Univ.},
  address   = {Potsdam},
  issn      = {1613-3307},
  pages     = {16 S.},
  year      = {2010},
  language  = {en}
}
@article{SkrabaniavonBerlepschBoettcheretal.2010,
  author    = {Skrabania, Katja and von Berlepsch, Hans and B{\"o}ttcher, Christoph and Laschewsky, Andr{\´e}},
  title     = {Synthesis of ternary, hydrophilic-lipophilic-fluorophilic block copolymers by consecutive RAFT polymerizations and their self-assembly into multicompartment micelles},
  issn      = {0024-9297},
  doi       = {10.1021/Ma901913f},
  year      = {2010},
  abstract  = {Linear amphiphilic diblock and ternary triblock copolymers were synthesized by the RAFT method in three Successive Steps, using oligo(ethylene oxide) monomethyl ether acrylate, butyl or 2-ethylhexyl acrylate, and 1H, 1H, 2H, 2H-perfluorodecyl acrylate. The diblock and the triblock copolymers, which consist of a hydrophilic, a lipophilic, and a fluorophilic block, self-assemble in water into spherical micellar aggregates. Imaging by cryogenic transmission electron microscopy (cryo-TEM) revealed that the cores of the micellar aggregates made from these "triphilic" copolymers undergo local phase separation to form various ultrastructures, which depend sensitivity on the given block sequence. While the sequence hydrophilic-lipophilic-fluorophilic resulted in multicompartment cores with core-shell-corona morphology, the sequence lipophilic-hydrophilic-fluorophilic provided new "patched double micelle" and larger "soccer ball" structures.},
  language  = {en}
}
@article{SpricigoRichterLeimkuehleretal.2010,
  author    = {Spricigo, Roberto and Richter, Claudia and Leimk{\"u}hler, Silke and Gorton, Lo and Scheller, Frieder W. and Wollenberger, Ursula},
  title     = {Sulfite biosensor based on osmium redox polymer wired sulfite oxidase},
  issn      = {0927-7757},
  doi       = {10.1016/j.colsurfa.2009.09.001},
  year      = {2010},
  abstract  = {A biosensor, based on a redoxactive osmium polymer and sulfite oxidase on screen-printed electrodes, is presented here as a promising method for the detection of sulfite. A catalytic oxidative current was generated when a sample containing sulfite was pumped over the carbon screen-printed electrode modified with osmium redox polymer wired sulfite oxidase. A stationary value was reached after approximately 50 s and a complete measurement lasted no more than 3 min. The electrode polarized at -0.1 V (vs. Ag vertical bar AgCl 1M KCl) permits minimizing the influence of interfering substances, since these compounds can be unspecific oxidized at higher potentials. Because of the good stability of the protein film on the electrode surface, a well functioning biosensor-flow system was possible to construct. The working stability and reproducibility were further enhanced by the addition of bovine serum albumin generating a more long-term stable and biocompatible protein environment. The optimized biosensor showed a stable signal for more than a week of operation and a coefficient of variation of 4.8\% for 12 successive measurements. The lower limit of detection of the sensor was 0.5 mu M sulfite and the response was linear until 100 mu M. The high sensitivity permitted a 1:500 dilution of wine samples. The immobilization procedure and the operational conditions granted minimized interferences. Additionally, repeating the immobilization procedure to form several layers of wired SO further increased the sensitivity of such a sensor. Finally. the applicability of the developed sulfite biosensor was tested on real samples, such as white and red wines.},
  language  = {en}
}
@article{StaabWalossekNellessenetal.2010,
  author    = {Staab, Paul R. and Walossek, J{\"o}rg and Nellessen, David and Gr{\"u}nberg, Raik and Arndt, Katja Maren and M{\"u}ller, Kristian M.},
  title     = {SynBioWave : a real-time communication platform for molecular and synthetic biology},
  issn      = {1367-4803},
  doi       = {10.1093/bioinformatics/btq518},
  year      = {2010},
  abstract  = {Synthetic Biology is advanced by many users and relies on the assembly of genetic elements to devices, systems and finally genomes. SynBioWave is a software suite that enables multiple distributed users to analyze and construct genetic parts in real-time collaboration. It builds on Google Wave and provides an extensible robot-robot-user communication framework, a menu driven user interface, biological data handling including DAS and an internal database communication. We demonstrate its use by implementing robots for gene-data retrieval, manipulation and display. The initial development of SynBioWave demonstrates the power of the underlying Google Wave protocol for Synthetic Biology and lays the foundation for continuous and user-friendly extensions. Specialized wave-robots with a manageable set of capabilities will divide and conquer the complex task of creating a genome in silico.},
  language  = {en}
}
@article{SteinUnsickerKahmenetal.2010,
  author    = {Stein, Claudia and Unsicker, Sybille B. and Kahmen, Ansgar and Wagner, Markus and Audorff, Volker and Auge, Harald and Prati, Daniel and Weisser, Wolfgang W.},
  title     = {Impact of invertebrate herbivory in grasslands depends on plant species diversity},
  issn      = {0012-9658},
  doi       = {10.1890/09-0600.1},
  year      = {2010},
  abstract  = {Invertebrate herbivores are ubiquitous in most terrestrial ecosystems, and theory predicts that their impact on plant community biomass should depend on diversity and productivity of the associated plant communities. To elucidate general patterns in the relationship between invertebrate herbivory, plant diversity, and productivity, we carried out a long-term herbivore exclusion experiment at multiple grassland sites in a mountainous landscape of central Germany. Over a period of five years, we used above-and belowground insecticides as well as a molluscicide to manipulate invertebrate herbivory at 14 grassland sites, covering a wide range of plant species diversity (13-38 species/m(2)) and aboveground plant productivity (272-1125 g.m(-2).yr(-1)), where plant species richness and productivity of the sites were not significantly correlated. Herbivore exclusion had significant effects on the plant communities: it decreased plant species richness and evenness, and it altered plant community composition. In particular, exclusion of belowground herbivores promoted grasses at the expense of herbs. In contrast to our expectation, herbivore effects on plant community biomass were not influenced by productivity. However, effect size of invertebrate herbivores was negatively correlated with plant diversity of the grasslands: the effect of herbivory on biomass tended to be negative at sites of high diversity and positive at sites of low diversity. In general, the effects of aboveground herbivores were relatively small as compared to belowground herbivores, which were important drivers of plant community composition. Our study is the first to show that variation in the effects of invertebrate herbivory on plant communities across a landscape is significantly influenced by plant species richness.},
  language  = {en}
}
@article{SteinbergOuerghemmiHerrmannetal.2010,
  author    = {Steinberg, Christian E. W. and Ouerghemmi, Nadia and Herrmann, Steffen and Bouchnak, Rihab and Timofeyev, Maxim A. and Menzel, Ralph},
  title     = {Stress by poor food quality and exposure to humic substances : daphnia magna responds with oxidative stress, lifespan extension, but reduced offspring numbers},
  issn      = {0018-8158},
  doi       = {10.1007/s10750-010-0334-4},
  year      = {2010},
  abstract  = {In freshwater systems, many abiotic and biotic factors determine the natural fluctuation of Daphnia spec. populations: climatic and water quality parameters, quantitative and qualitative food quality and quantity, predation, and humic substances. Many factors/stressors act in concert. In this contribution, we supplied Daphnia magna with two different diets (chlorococcal alga Pseudokirchneriella subcapitata and baker's yeast) fed ad libitum and exposed it to an environmentally realistic concentration of humic substances (HSs). Exposure to HSs caused a transcriptionally controlled stress response with studied genes; cat and hsp60, for the latter partial sequences have been identified. Furthermore, the exposure to HSs reduced the antioxidant capacity. Yet, a much stronger oxidative stress is caused by feeding yeast, which reduced the anti-oxidative capacity to values of approximately 50\% of the green algal diet. This reduction is most likely due to the yeast's cell wall to resist digestion rather than to the elemental ratio or deficiency in long-chained unsaturated fatty acids, because both diets were deficient in fatty acids with back bones of more than 20 C-atoms. We assume that the biochemical machinery in the gut continuously activated oxygen to cleave the yeast's cell wall and, hence, reduced the antioxidative capacity of the animals. Neither the analyzed oxidant, H2O2, nor the antioxidants, total apparent ascorbic acid nor free proline, reflected the oxidative stress situations properly. In addition to the stress, HS exposure extended the mean lifespan of algae-fed D. magna, but at the expense of offspring numbers; so did also the pure yeast diet as compared to the algae diet. The first lifespan extension can be explained by the potential of HSs to block the pathway via the insulin-like growth factor 1 (IGF), whereas the second matches the, in aging papers, well described, but mechanistically poorly understood caloric restriction. Yeast-fed animals, exposed to HSs changed the energy allocation by reducing life span, but increasing offspring numbers. With the lifespan and offspring numbers, ecologically relevant parameters are differently affected by the simultaneous action of two environmentally relevant stressors.},
  language  = {en}
}
@article{TirokGaedke2010,
  author    = {Tirok, Katrin and Gaedke, Ursula},
  title     = {Internally driven alternation of functional traits in a multispecies predator-prey system},
  issn      = {0012-9658},
  doi       = {10.1890/09-1052.1},
  year      = {2010},
  abstract  = {The individual functional traits of different species play a key role for ecosystem function in aquatic and terrestrial systems. We modeled a multispecies predator-prey system with functionally different predator and prey species based on observations of the community dynamics of ciliates and their algal prey in Lake Constance. The model accounted for differences in predator feeding preferences and prey susceptibility to predation, and for the respective trade-offs. A low food demand of the predator was connected to a high food selectivity, and a high growth rate of the prey was connected to a high vulnerability to grazing. The data and the model did not show standard uniform predator- prey cycles, but revealed both complex dynamics and a coexistence of predator and prey at high biomass levels. These dynamics resulted from internally driven alternations in species densities and involved compensatory dynamics between functionally different species. Functional diversity allowed for ongoing adaptation of the predator and prey communities to changing environmental conditions such as food composition and grazing pressure. The trade-offs determined whether compensatory or synchronous dynamics occurred which influence the variability at the community level. Compensatory dynamics were promoted by a joint carrying capacity linking the different prey species which is particularly relevant at high prey biomasses, i.e., when grazers are less efficient. In contrast, synchronization was enhanced by the coupling of the different predator and prey species via common feeding links, e.g., by a high grazing pressure of a nonselective predator. The communities had to be functionally diverse in terms of their trade-offs and their traits to yield compensatory dynamics. Rather similar predator species tended to cycle synchronously, whereas profoundly different species did not coexist. Compensatory dynamics at the community level thus required intermediately strong tradeoffs for functional traits in both predators and their prey.},
  language  = {en}
}
@article{TiseanuParvulescuParvulescuetal.2010,
  author    = {Tiseanu, Carmen and Parvulescu, Vasile and Parvulescu, Victoria and Cotoi, Elena and Gessner, Andre and Kumke, Michael Uwe and Simon, Simion and Vasiliu, Florin},
  title     = {Structural and photoluminescence characterization of mesoporous silicon-phosphates},
  issn      = {1010-6030},
  doi       = {10.1016/j.jphotochem.2010.07.015},
  year      = {2010},
  abstract  = {Two different types of mesoporous silicon-phosphate supports using different surfactants (a mixture of (CH3)(3)C13H27NBr with an organophosphorus coupling molecule (HO-PO(i-C3H7)(2)) and with a co-surfactant ((C2H5)(3)(C6H5)PCl), respectively) were synthesized. Trivalent europium (Eu) ions were immobilized via ion-exchange on these supports. The resulting materials were characterized using nitrogen adsorption isotherms at -196 degrees C, thermogravimetric analysis, SEM, TEM, FT-IR, PXRD, CP/MAS. (HSi)-H-1-Si-29 and P-31 NMR, DR-UV-vis as well as steady- state and time-resolved photoluminescence spectroscopy. The results evidenced that the co-polymerization of silicon and phosphorous yielded a unique morphology in these materials. Following calcination at 450 and 900 degrees C europium- exchanged silicon-phosphates with great surface area (BET=600-705 m(2) g(-1)) and 3.4 nm sized mesopores were obtained. The differences among the optical properties of the non-calcined europium materials such as the emission lifetimes, local environment at the europium sites or the relative contribution of the upper excited levels to the total photoluminescence were assigned to the surfactants used in the synthesis. Calcination of the silicon-phosphates at higher temperatures than 450 degrees C did not induce major changes in the structural properties: in contrast, photoluminescence properties of europium were markedly improved in terms of intensity and average lifetime.},
  language  = {en}
}
@article{TiseanuParvulescuCojocaruetal.2010,
  author    = {Tiseanu, Carmen and Parvulescu, Vasile Ion and Cojocaru, Bogdan and Lorenz-Fonfria, Victor A. and Kumke, Michael Uwe and Gessner, Andre and Enculescu, Ion},
  title     = {Polymer-microporous host interactions probed by photoluminescence spectroscopy},
  issn      = {1463-9076},
  doi       = {10.1039/B922591a},
  year      = {2010},
  abstract  = {Zeolites NaY and ZSM-5 were used as hosts for styrene polymerization after ion-exchange with europium ions. The parent and hybrid, polystyrene coated Eu-NaY (Eu-NaY/PS) and Eu-ZSM-5 (Eu-ZSM-5/PS) zeolites were investigated by using thermal analysis, SEM, PXRD, FT-IR, DR-UV/Vis, steady state and time-resolved photoluminescence spectroscopy. FT-IR spectra evidenced for the interaction between the zeolitic hosts and polystyrene while the PXRD spectra supported for the presence of the polymer inside the channels/pores of Eu-NaY/PS and Eu-ZSM-5/PS materials. The optical properties of Eu-NaY/PS and Eu-ZSM-5/PS were significantly changed relative to those of the parent zeolites, giving further evidence for the presence of polymer inside zeolites. An interesting case is presented by NaY zeolite: following styrene polymerization, the polymer interacted selectively with one of the two main species co-existing inside zeolite while for ZSM-5 a similar effect was not observed.},
  language  = {en}
}
@article{TobieGieseHurfordetal.2010,
  author    = {Tobie, Gabriel and Giese, Bernd and Hurford, Terry Anthony and Lopes, Rosaly M. and Nimmo, Francis and Postberg, Frank and Retherford, Kurt D. and Schmidt, J{\"u}rgen and Spencer, John R. and Tokano, Tetsuya and Turtle, Elizabeth P.},
  title     = {Surface, subsurface and atmosphere exchanges on the satellites of the outer solar system},
  issn      = {0038-6308},
  doi       = {10.1007/s11214-010-9641-3},
  year      = {2010},
  abstract  = {The surface morphology of icy moons is affected by several processes implicating exchanges between their subsurfaces and atmospheres (if any). The possible exchange of material between the subsurface and the surface is mainly determined by the mechanical properties of the lithosphere, which isolates the deep, warm and ductile ice material from the cold surface conditions. Exchanges through this layer occur only if it is sufficiently thin and/or if it is fractured owing to tectonic stresses, melt intrusion or impact cratering. If such conditions are met, cryomagma can be released, erupting fresh volatile-rich materials onto the surface. For a very few icy moons (Titan, Triton, Enceladus), the emission of gas associated with cryovolcanic activity is sufficiently large to generate an atmosphere, either long- lived or transient. For those moons, atmosphere-driven processes such as cryovolcanic plume deposition, phase transitions of condensable materials and wind interactions continuously re-shape their surfaces, and are able to transport cryovolcanically generated materials on a global scale. In this chapter, we discuss the physics of these different exchange processes and how they affect the evolution of the satellites' surfaces.},
  language  = {en}
}
@article{TreydteRiginosJeltsch2010,
  author    = {Treydte, Anna C. and Riginos, Corinna and Jeltsch, Florian},
  title     = {Enhanced use of beneath-canopy vegetation by grazing ungulates in African savannahs},
  issn      = {0140-1963},
  doi       = {10.1016/j.jaridenv.2010.07.003},
  year      = {2010},
  abstract  = {The cover of large trees in African savannahs is rapidly declining, mainly due to human land-use practices. Trees improve grass nutrient quality and contribute to species and structural diversity of savannah vegetation. However, the response of herbivores to trees as habitat features is unknown We quantified the habitat use of wild and domestic ungulates in two eastern and southern African savannahs. We assessed grazing intensities and quantified dung depositions beneath and around canopies of different sized trees. Grasses were eaten and dung was deposited twice as frequently beneath large (ca. 5 m in height) and very large trees (7-10 m) than in open grasslands. Small trees (<2.5 m) did not show this trend. Grazing intensity and dung deposition decreased with distance away from trees at both study sites. These results suggest that large trees represent essential habitat features for domestic and wild herbivores. Increased dung depositions beneath large trees may further promote the maintenance of a patchy nutrient distribution in savannahs. Small trees cannot provide the same structural and functional advantages as large trees do. We recommend that land-use practices be promoted which conserve large single-standing trees to benefit the flora and fauna of African savannahs.},
  language  = {en}
}
@article{Sunna2010,
  author    = {Sunna, Anwar},
  title     = {Modular organisation and functional analysis of dissected modular beta-mannanase CsMan26 from Caldicellulosiruptor Rt8B.4},
  issn      = {0175-7598},
  doi       = {10.1007/s00253-009-2242-y},
  year      = {2010},
  abstract  = {CsMan26 from Caldicellulosiruptor strain Rt8.B4 is a modular beta-mannanase consisting of two N-terminal family 27 carbohydrate-binding modules (CBMs), followed by a family 35 CBM and a family 26 glycoside hydrolase catalytic module (mannanase). A functional dissection of the full-length CsMan26 and a comprehensive characterisation of the truncated derivatives were undertaken to evaluate the role of the CBMs. Limited proteolysis was used to define biochemically the boundaries of the different structural modules in CsMan26. The full-length CsMan26 and three truncated derivatives were produced in Escherichia coli, purified and characterised. The systematic removal of the CBMs resulted in a decrease in the optimal temperature for activity and in the overall thermostability of the derivatives. Kinetic experiments indicated that the presence of the mannan-specific family 27 CBMs increased the affinity of the enzyme towards the soluble galactomannan substrate but this was accompanied by lower catalytic efficiency. The full-length CsMan26 and its truncated derivatives were unable to hydrolyse mannooligosaccharides with degree of polymerisation (DP) of three or less. The major difference in the hydrolysis pattern of larger mannooligosaccharides (DP > 3) by the derivatives was determined by their abilities to further hydrolyse the intermediate sugar mannotetraose.},
  language  = {en}
}
@article{SureshSenthilkumarLakshmananetal.2010,
  author    = {Suresh, R. and Senthilkumar, Dharmapuri Vijayan and Lakshmanan, Muthusamy and Kurths, J{\"u}rgen},
  title     = {Global phase synchronization in an array of time-delay systems},
  issn      = {1539-3755},
  doi       = {10.1103/Physreve.82.016215},
  year      = {2010},
  abstract  = {We report the identification of global phase synchronization (GPS) in a linear array of unidirectionally coupled Mackey-Glass time-delay systems exhibiting highly non-phase-coherent chaotic attractors with complex topological structure. In particular, we show that the dynamical organization of all the coupled time-delay systems in the array to form GPS is achieved by sequential synchronization as a function of the coupling strength. Further, the asynchronous ones in the array with respect to the main sequentially synchronized cluster organize themselves to form clusters before they achieve synchronization with the main cluster. We have confirmed these results by estimating instantaneous phases including phase difference, average phase, average frequency, frequency ratio, and their differences from suitably transformed phase coherent attractors after using a nonlinear transformation of the original non-phase-coherent attractors. The results are further corroborated using two other independent approaches based on recurrence analysis and the concept of localized sets from the original non-phase-coherent attractors directly without explicitly introducing the measure of phase.},
  language  = {en}
}
@article{SwertsZerbian2010,
  author    = {Swerts, Marc and Zerbian, Sabine},
  title     = {Intonational differences between L1 and L2 english in South Africa},
  issn      = {0031-8388},
  doi       = {10.1159/000321052},
  year      = {2010},
  abstract  = {Previous studies have shown that characteristics of a person's first language (L1) may transfer to a second language (L2). The current study looks at the extent to which this holds for aspects of intonation as well. More specifically, we investigate to what extent traces of the L1 can be discerned in the way intonation is used in the L2 for two functions: (1) to highlight certain words by making them sound more prominent and (2) to signal continuation or finality in a list by manipulating the speech melody. To this end, the article presents an explorative study into the way focus and boundaries are marked prosodically in Zulu, and it also compares such prosodic functions in two variants of English in South Africa, i.e., English spoken as an L1, and English spoken as an L2/additional language by speakers who have Zulu as their L1. The latter language is commonly referred to as Black South African English. This comparison is interesting from a typological perspective, as Zulu is intonationally different from English, especially in the way prosody is exploited for signalling informationally important stretches of speech. Using a specific elicitation procedure, we found in a first study that speakers of South African English (as L1) mark focused words and position within a list by intonational means, just as in other L1 varieties of English, whereas Zulu only uses intonation for marking continuity or finality. A second study focused on speakers of Black South African English, and compared the prosody of proficient versus less proficient speakers. We found that the proficient speakers were perceptually equivalent to L1 speakers of English in their use of intonation for marking focus and boundaries. The less proficient speakers marked boundaries in a similar way as L1 speakers of English, but did not use prosody for signalling focus, analogous to what is typical of their native language. Acoustic observations match these perceptual results.},
  language  = {en}
}
@article{TannebergerFladePreiksaetal.2010,
  author    = {Tanneberger, Franziska and Flade, Martin and Preiksa, Zydrunas and Schr{\"o}der-Esselbach, Boris},
  title     = {Habitat selection of the globally threatened Aquatic Warbler Acrocephalus paludicola at the western margin of its breeding range and implications for management},
  issn      = {0019-1019},
  doi       = {10.1111/j.1474-919X.2010.01016.x},
  year      = {2010},
  abstract  = {The globally threatened Aquatic Warbler Acrocephalus paludicola is an umbrella species for fen mires and is at risk of extinction in its westernmost breeding population due to severe habitat loss. We used boosted regression trees to model Aquatic Warbler habitat selection in order to make recommendations for effective management of the last remnant habitats. Habitat data were collected in the years 2004-2006 in all remaining breeding sites in Pomerania (eastern Germany and western Poland) as well as in recently abandoned sites. Models were validated using data from similar Aquatic Warbler habitats in Lithuania. The probability of occurrence of Aquatic Warblers in late May/early June was positively associated with low isolation from other occupied sites, less eutrophic conditions, a high proportion of area mown early in the preceding year, high availability of vegetation 60-70 cm high, high prey abundance and high habitat heterogeneity. Early summer land management is needed in the more productive sites to prevent habitat deterioration by succession to higher and denser vegetation. As this also poses a serious threat to broods, management that creates a mosaic of early and late used patches is recommended to preserve and restore productive Aquatic Warbler sites. In less productive sites, winter mowing can maintain suitable habitat conditions. Aquatic Warbler-friendly land use supports a variety of other threatened plant and animal species typical of fens and sedge meadows and can meet the economic interests of local land users.},
  language  = {en}
}
@article{ThalhammerHundertmarkPopovaetal.2010,
  author    = {Thalhammer, Anja and Hundertmark, Michaela and Popova, Antoaneta V. and Seckler, Robert and Hincha, Dirk K.},
  title     = {Interaction of two intrinsically disordered plant stress proteins (COR15A and COR15B) with lipid membranes in the dry state},
  issn      = {0005-2736},
  doi       = {10.1016/j.bbamem.2010.05.015},
  year      = {2010},
  abstract  = {COR15A and COR15B form a tandem repeat of highly homologous genes in Arabidopsis thaliana. Both genes are highly cold induced and the encoded proteins belong to the Pfam LEA_4 group (group 3) of the late embryogenesis abundant (LEA) proteins. Both proteins were predicted to be intrinsically disordered in solution. Only COR15A has previously been characterized and it was shown to be localized in the soluble stroma fraction of chloroplasts. Ectopic expression of COR15A in Arabidopsis resulted in increased freezing tolerance of both chloroplasts after freezing and thawing of intact leaves and of isolated protoplasts frozen and thawed in vitro. In the present study we have generated recombinant mature COR15A and COR15B for a comparative study of their structure and possible function as membrane protectants. CD spectroscopy showed that both proteins are predominantly unstructured in solution and mainly a-helical after drying. Both proteins showed similar effects on the thermotropic phase behavior of dry liposomes. A decrease in the gel to liquid-crystalline phase transition temperature depended on both the unsaturation of the fatty acyl chains and lipid headgroup structure. FTIR spectroscopy indicated no strong interactions between the proteins and the lipid phosphate and carbonyl groups, but significant interactions with the galactose headgroup of the chloroplast lipid monogalactosyldiacylglycerol. These findings were rationalized by modeling the secondary structure of COR15A and COR15B. Helical wheel projection indicated the presence of amphipathic a-helices in both proteins. The helices lacked a clear separation of positive and negative charges on the hydrophilic face, but contained several hydroxylated amino acids.},
  language  = {en}
}
@article{ThammBalfanzScheineretal.2010,
  author    = {Thamm, Markus and Balfanz, Sabine and Scheiner, Richarda and Baumann, Arnd and Blenau, Wolfgang},
  title     = {Characterization of the 5-HT1A receptor of the honeybee (Apis mellifera) and involvement of serotonin in phototactic behavior},
  issn      = {1420-682X},
  doi       = {10.1007/s00018-010-0350-6},
  year      = {2010},
  abstract  = {Serotonin plays a key role in modulating various physiological and behavioral processes in both protostomes and deuterostomes. The vast majority of serotonin receptors belong to the superfamily of G-protein-coupled receptors. We report the cloning of a cDNA from the honeybee (Am5-ht1A) sharing high similarity with members of the 5-HT1 receptor class. Activation of Am5-HT1A by serotonin inhibited the production of cAMP in a dose-dependent manner (EC50 = 16.9 nM). Am5-HT1A was highly expressed in brain regions known to be involved in visual information processing. Using in vivo pharmacology, we could demonstrate that Am5-HT1A receptor ligands had a strong impact on the phototactic behavior of individual bees. The data presented here mark the first comprehensive study-from gene to behavior-of a 5-HT1A receptor in the honeybee, paving the way for the eventual elucidation of additional roles of this receptor subtype in the physiology and behavior of this social insect.},
  language  = {en}
}
@article{TietjenJeltschZeheetal.2010,
  author    = {Tietjen, Britta and Jeltsch, Florian and Zehe, Erwin and Classen, Nikolaus and Groengroeft, Alexander and Schiffers, Katja and Oldeland, Jens},
  title     = {Effects of climate change on the coupled dynamics of water and vegetation in drylands},
  issn      = {1936-0584},
  doi       = {10.1002/Eco.70},
  year      = {2010},
  abstract  = {Drylands worldwide are exposed to a highly variable environment and face a high risk of degradation. The effects of global climate change such as altered precipitation patterns and increased temperature leading to reduced water availability will likely increase this risk. At the same time, an elevated atmospheric CO2 level could mitigate the effects of reduced water availability by increasing the water use efficiency of plants. To prevent degradation of drylands, it is essential to understand the underlying processes that affect water availability and vegetation cover. Since water and vegetation are strongly interdependent in water-limited ecosystems, changes can lead to highly non- linear effects. We assess these effects by developing an ecohydrological model of soil moisture and vegetation cover. The water component of the model simulates the daily dynamics of surface water and water contents in two soil layers. Vegetation is represented by two functional types: shrubs and grasses. These compete for soil water and strongly influence hydrological processes. We apply the model to a Namibian thornbush savanna and evaluate the separate and combined effects of decreased annual precipitation, increased temperature, more variable precipitation and elevated atmospheric CO2 on soil moisture and on vegetation cover. The results show that two main factors control the response of plant types towards climate change, namely a change in water availability and a change in water allocation to a specific plant type. Especially, reduced competitiveness of grasses can lead to a higher risk of shrub encroachment in these systems.},
  language  = {en}
}
@article{TimmerTheissJuerchottetal.2010,
  author    = {Timmer, Marco and Theiss, Hans and J{\"u}rchott, Katrin and Ries, Christian and Paron, Igor and Franz, W. and Selbig, Joachim and Guo, Ketai and Tonn, J{\"o}rg and Schichor, Christian},
  title     = {Stromal-Derived Factor 1a (Sdf-1a), a Homing Factor for Mesenchymal Progenitor Cells, Is Elevated in Tumor Tissue and Plasma of Glioma Patients},
  issn      = {1522-8517},
  year      = {2010},
  abstract  = {Malignant gliomas are a fatal disease lacking sufficient possibilities for early diagnosis and chemical markers to detect remission or relapse. The recruitment of progenitor cells such as mesenchymal stem cells (MSC) is a main feature of gliomas. Stromal cell-derived factor-1 (SDF-1), a chemokine produced in glioma cell lines, enhances migration in MSC and has been associated with cell survival and apoptosis in gliomas. Therefore, this study was performed to evaluate (i) whether SDF-1 and its receptors are expressed in human malignant gliomas in situ and (ii) if SDF-1 might potentially play a role in recruiting MSCs into human glioma. In glioblastoma tissue, immunohistochemistry revealed that SDF-1 and its receptor CXCR4 are expressed in regions of angiogenesis and necrosis, and qPCR showed that SDF-1 is elevated. Public expression data indicated that CXCR4 was upregulated. The latter data also illustrate that SDF-1 could be up- or downregulated in glioma compared to normal brain in a transcript-specific manner. In plasma, SDF-1 is elevated in glioma patients. The level is reduced by both dexamethasone intake and surgery. Dexamethasone also decreased SDF-1 production in cells in vitro. The undirected migration of human MSC (hMSC) was not enhanced by the addition of SDF-1. However, SDF-1 stimulated directed invasion of hMSC in a dose-dependent manner. Taken together, we show that SDF-1 is a potent chemoattractant of progenitor cells such as hMSCs and that its expression is elevated in glioma tissue, which results in elevated SDF-1 levels in the patient's plasma samples with concomittant decrease after tumor resection. The fact that elevated SDF-1 plasma levels are significantly decreased after tumor surgery could be a first hint that SDF-1 might act as tumor marker for malignant gliomas in order to detect disease progression or remission, respectively.},
  language  = {en}
}
@article{WangKaunePerlichetal.2010,
  author    = {Wang, Weijia and Kaune, Gunar and Perlich, Jan and Paradakis, Christine M. and Bivigou Koumba, Achille Mayelle and Laschewsky, Andr{\´e} and Schlage, K. and R{\"o}hlsberger, Ralf and Roth, Stephan V. and Cubitt, Robert and M{\"u}ller-Buschbaum, Peter},
  title     = {Swelling and switching kinetics of gold coated end-capped poly(N-isopropylacrylamide) thin films},
  issn      = {0024-9297},
  doi       = {10.1021/Ma902637a},
  year      = {2010},
  abstract  = {Thin thermoresponsive hydrogel films of poly(N-isopropylacrylamide) end-capped with n-butyltrithiocarbonate(nbc- PNIPAM) oil si I icon supports with a gold layer on top, causing an asymmetric confinement, are investigated. For two different gold layer thicknesses (nominally 0.4 and 5 rim), the swelling and switching kinetics are probed with in situ neutron reflectivity. With a temperature jump from 23 to 40 degrees C the film is switched from a swollen into a collapsed state. For the thin gold layer this switching is faster as compared to the thick gold layer. The switching is a two-step process of water release and a subsequent structural relaxation. fit swelling and deswelling cycles, aging of the films is probed. After five cycles, the film exhibits enhanced water storage capacity. Grazing-incidence small-angle X-ray scattering (GISAXS) shows that these gold coated nbc-PNIPAM films do not age with respect to the inner structure but slightly roughen at the gold surface. As revealed by atomic force microscopy, the morphology of the gold layer is changed by the water uptake and release.},
  language  = {en}
}
@article{WasiolkaJeltschHenscheletal.2010,
  author    = {Wasiolka, Bernd and Jeltsch, Florian and Henschel, Joh and Blaum, Niels},
  title     = {Space use of the spotted sand lizard (Pedioplanis l. lineoocellata) under different degradation states},
  issn      = {0141-6707},
  doi       = {10.1111/j.1365-2028.2009.01085.x},
  year      = {2010},
  abstract  = {Although the effects of grazing-induced savannah degradation on animal diversity are well documented, knowledge of how they affect space use or responding behaviour remains poor. In this study, we analysed space use of the spotted sand lizard (Pedioplanis l. lineoocellata) in degraded versus nondegraded habitats of southern Kalahari savannah habitats. Lizards were radio tracked, daily movement distances recorded and home range sizes calculated. In degraded Kalahari savannah habitats where plant diversity and perennial grass cover are low but shrub cover high, P. lineoocellata moves larger distances (40.88 +/- 6.42 m versus 27.43 +/- 5.08 m) and occupies larger home ranges (646.64 +/- 244.84 m(2) versus 209.15 +/- 109.84 m(2)) than in nondegraded habitats (high plant diversity, high perennial grass cover and low shrub cover). We assume that this increase in daily movement distances and home range sizes is a behavioural plasticity to limited food resources in degraded savannah habitats. Although P. lineoocellata is able to adjust to resource-poor savannah habitats, the increase in the lizard's movement activities is likely to result in a higher predation risk. This is supported by the lower availability of protective vegetation i.e. perennial grass cover. Hence, we conclude that despite behavioural plasticity of P. lineoocellata, overgrazing has a severe negative impact on the space use of P. lineoocellata.},
  language  = {en}
}
@article{WebsterMeier2010,
  author    = {Webster, Dean C. and Meier, Michael A. R.},
  title     = {Polymer libraries : preparation and applications},
  issn      = {0065-3195},
  doi       = {10.1007/12_2009_15},
  year      = {2010},
  abstract  = {Polymer libraries offer straightforward opportunities for the investigation of structure property relationships and for a more thorough understanding of certain research problems. Furthermore, if combined with high-throughput methods for their preparation as well as screening, they offer the additional advantage of time savings and/or the reduction of experimental efforts. Thus, the herein discussed methods of polymer library preparation and selected literature examples of polymer libraries describe efficient and state-of-the-art methods to tackle difficult research challenges in polymer and materials science.},
  language  = {en}
}
@article{WeisseMiddletonHuisinga2010,
  author    = {Weiße, Andrea Y. and Middleton, Richard H. and Huisinga, Wilhelm},
  title     = {Quantifying uncertainty, variability and likelihood for ordinary differential equation models},
  issn      = {1752-0509},
  doi       = {10.1186/1752-0509-4-144},
  year      = {2010},
  abstract  = {Background: In many applications, ordinary differential equation (ODE) models are subject to uncertainty or variability in initial conditions and parameters. Both, uncertainty and variability can be quantified in terms of a probability density function on the state and parameter space. Results: The partial differential equation that describes the evolution of this probability density function has a form that is particularly amenable to application of the well- known method of characteristics. The value of the density at some point in time is directly accessible by the solution of the original ODE extended by a single extra dimension (for the value of the density). This leads to simple methods for studying uncertainty, variability and likelihood, with significant advantages over more traditional Monte Carlo and related approaches especially when studying regions with low probability. Conclusions: While such approaches based on the method of characteristics are common practice in other disciplines, their advantages for the study of biological systems have so far remained unrecognized. Several examples illustrate performance and accuracy of the approach and its limitations.},
  language  = {en}
}
@article{WeithoffMoserKamjunkeetal.2010,
  author    = {Weithoff, Guntram and Moser, Michael and Kamjunke, Norbert and Gaedke, Ursula and Weisse, Thomas},
  title     = {Lake morphometry and wind exposure may shape the plankton community structure in acidic mining lakes},
  issn      = {0075-9511},
  doi       = {10.1016/j.limno.2009.11.002},
  year      = {2010},
  abstract  = {Acidic mining lakes (pH <3) are specific habitats exhibiting particular chemical and biological characteristics. The species richness is low and mixotrophy and omnivory are common features of the plankton food web in such lakes. The plankton community structure of mining lakes of different morphometry and mixing type but similar chemical characteristics (Lake 130, Germany and Lake Langau, Austria) was investigated. The focus was laid on the species composition, the trophic relationship between the phago-mixotrophic flagellate Ochromonas sp. and bacteria and the formation of a deep chlorophyll maximum along a vertical pH-gradient. The shallow wind-exposed Lake 130 exhibited a higher species richness than Lake Langau. This increase in species richness was made up mainly by mero-planktic species, suggesting a strong benthic/littoral - pelagic coupling. Based on the field data from both lakes, a nonlinear, negative relation between bacteria and Ochromonas biomass was found, suggesting that at an Ochromonas biomass below 50 mu g CL-1. the grazing pressure on bacteria is low and with increasing Ochromonas biomass bacteria decline. Furthermore, in Lake Langau, a prominent deep chlorophyll maximum was found with chlorophyll concentrations ca. 50 times higher than in the epilimnion which was build up by the euglenophyte Lepocinclis sp. We conclude that lake morphometry, and specific abiotic characteristics such as mixing behaviour influence the community structure in these mining lakes.},
  language  = {en}
}
@article{WessigMoellnitzHuebner2010,
  author    = {Wessig, Pablo and M{\"o}llnitz, Kristian and H{\"u}bner, Sebastian},
  title     = {A short and efficient route from myo- to neo-inositol},
  issn      = {0936-5214},
  doi       = {10.1055/s-0029-1220071},
  year      = {2010},
  abstract  = {An efficient route from myo- to neo-inositol is described. The key steps of the sequence are oxidation of the hydroxy group at C-5 to the corresponding ketone, followed by a highly (dr = 7.8:1) stereoselective reduction. The route includes nine steps with an overall yield of 51\% and is therefore superior to all hitherto reported methods for the preparation of neo-inositol.},
  language  = {en}
}
@article{WiemannAndersenBerggrenetal.2010,
  author    = {Wiemann, Annika and Andersen, Liselotte W. and Berggren, Per and Siebert, Ursula and Benke, Harald and Teilmann, Jonay and Lockyer, Christina and Pawliczka, Iwona and Skora, Krysztof and Roos, Aanna and Lyrholm, Thomas and Paulus, Kirsten B. and Ketmaier, Valerio},
  title     = {Mitochondrial Control Region and microsatellite analyses on harbour porpoise (Phocoena phocoena) unravel population differentiation in the Baltic Sea and adjacent waters},
  issn      = {1566-0621},
  doi       = {10.1007/s10592-009-0023-x},
  year      = {2010},
  abstract  = {The population status of the harbour porpoise (Phocoena phocoena) in the Baltic area has been a continuous matter of debate. Here we present the by far most comprehensive genetic population structure assessment to date for this region, both with regard to geographic coverage and sample size: 497 porpoise samples from North Sea, Skagerrak, Kattegat, Belt Sea, and Inner Baltic Sea were sequenced at the mitochondrial Control Region and 305 of these specimens were typed at 15 polymorphic microsatellite loci. Samples were stratified according to sample type (stranding vs. by- caught), sex, and season (breeding vs. non-breeding season). Our data provide ample evidence for a population split between the Skagerrak and the Belt Sea, with a transition zone in the Kattegat area. Among other measures, this was particularly visible in significant frequency shifts of the most abundant mitochondrial haplotypes. A particular haplotype almost absent in the North Sea was the most abundant in Belt Sea and Inner Baltic Sea. Microsatellites yielded a similar pattern (i.e., turnover in occurrence of clusters identified by STRUCTURE). Moreover, a highly significant association between microsatellite assignment and unlinked mitochondrial haplotypes further indicates a split between North Sea and Baltic porpoises. For the Inner Baltic Sea, we consistently recovered a small, but significant separation from the Belt Sea population. Despite recent arguments that separation should exceed a predefined threshold before populations shall be managed separately, we argue in favour of precautionary acknowledging the Inner Baltic porpoises as a separate management unit, which should receive particular attention, as it is threatened by various factors, in particular local fishery measures.},
  language  = {en}
}
@article{WiesnerBirkenfeldEngelietal.2010,
  author    = {Wiesner, Stefan and Birkenfeld, Andreas L. and Engeli, Stefan and Haufe, Sven and Brechtel, Lars and Wein, J. and Hermsdorf, Mario and Karnahl, Brita and Berlan, Michel and Lafontan, Max and Sweep, Fred C. G. J. and Luft, Friedrich C. and Jordan, Jens},
  title     = {Neurohumoral and metabolic response to exercise in water},
  issn      = {0018-5043},
  doi       = {10.1055/s-0030-1248250},
  year      = {2010},
  abstract  = {Atrial natriuretic peptide (ANP) stimulates lipid mobilization and lipid oxidation in humans. The mechanism appears to promote lipid mobilization during exercise. We tested the hypothesis that water immersion augments exercise- induced ANP release and that the change in ANP availability is associated with increased lipid mobilization and lipid oxidation. In an open randomized and cross-over fashion we studied 17 men (age 31 +/- 3.6 years; body mass index 24 +/- 1.7 kg/m(2); body fat 17 +/- 6.7\%) on no medication. Subjects underwent two incremental exercise tests on a bicycle ergometer. One test was conducted on land and the other test during immersion in water up to the xiphoid process. In a subset (n = 7), we obtained electromyography recordings in the left leg. We monitored gas exchange, blood pressure, and heart rate. In addition, we obtained blood samples towards the end of each exercise step to determine ANP, norepinephrine, epinephrine, lactate, free fatty acids, insulin, and glucose concentrations. Heart rate, systolic blood pressure, and oxygen consumption at the anaerobic threshold and during peak exercise were similar on land and with exercise in water. The respiratory quotient was mildly reduced when subjects exercised in water. Glucose and lactate measurements were decreased whereas free fatty acid concentrations were increased with exercise in water. Water immersion attenuated epinephrine and norepinephrine and augmented ANP release during exercise. Even though water immersion blunts exercise-induced sympathoadrenal activation, lipid mobilization and lipid oxidation rate are maintained or even improved. The response may be explained by augmented ANP release.},
  language  = {en}
}
@article{TschoepeTielboerger2010,
  author    = {Tsch{\"o}pe, Okka and Tielb{\"o}rger, Katja},
  title     = {The role of successional stage and small-scale disturbance for establishment of pioneer grass Corynephorus canescens},
  issn      = {1402-2001},
  doi       = {10.1111/j.1654-109X.2009.01072.x},
  year      = {2010},
  abstract  = {Question Which mechanisms promote the maintenance of the protected pioneer grass Corynephorus canescens in a mosaic landscape? Which are the interactive effects of small-scale disturbances, successional stage and year-to-year variation on early establishment probabilities of C. canescens? Location Brandenburg, NE Germany. Methods We measured emergence and survival rates over 3 yr in a sowing-experiment conducted in three successional stages (C. canescens- dominated site, ruderal forb site and pioneer forest) under two different regimes of mechanical ground disturbance (disturbed versus undisturbed control). Results Overall, disturbance led to higher emergence in a humid year and to lower emergence in a very dry year. Apparently, when soil moisture was sufficient, the main factor limiting C. canescens' establishment was competition, while in the dry year, water became the limiting factor. Survival rates were not affected by disturbance. In humid years, C. canescens emerged in higher numbers in open successional stages while in the dry year, emergence rates were higher in late stages, suggesting an important role of late successional stages for the persistence of C. canescens. Conclusions Our results suggest that small-scale disturbances can promote germination of C. canescens. However, disturbances should be carefully planned. The optimal strategy for promoting C. canescens is to apply disturbances just before seed dispersal and not during dry years. At the landscape scale, a mosaic of different vegetation types is beneficial for the protected pioneer grass as facilitation by late-successional species may be an important mechanism for the persistence of C. canescens, especially in dry years.},
  language  = {en}
}
@article{TueruencMeier2010,
  author    = {T{\"u}r{\"u}nc, Oguz and Meier, Michael A. R.},
  title     = {Fatty acid derived monomers and related polymers via Thiol-ene (click) additions},
  issn      = {1022-1336},
  doi       = {10.1002/marc.201000291},
  year      = {2010},
  abstract  = {Thiol-ene additions of methyl 10-undecenoate, a castor oil derived renewable platform chemical, were studied with the goal of preparing a set of renewable monomers. Good to excellent yields were obtained for these solvent and initiator free thiol-ene additions. The resulting monomers were then polymerized using TBD as a catalyst, to linear as well as hyperbranched polyesters that also contain thio-ether linkages. All thus prepared polymers were fully characterized (NMR, GPC, DSC, and TGA) and the results of these investigations will be discussed within this contribution. The thermal analysis of these polymers revealed melting points in the range from 50 to 71 degrees C. Moreover, no significant weight loss was observed below 300 degrees C.},
  language  = {en}
}
@article{UhligWischerhoffLutzetal.2010,
  author    = {Uhlig, Katja and Wischerhoff, Erik and Lutz, Jean-Francois and Laschewsky, Andr{\´e} and J{\"a}ger, Magnus S. and Lankenau, Andreas and Duschl, Claus},
  title     = {Monitoring cell detachment on PEG-based thermoresponsive surfaces using TIRF microscopy},
  issn      = {1744-683X},
  doi       = {10.1039/C0sm00010h},
  year      = {2010},
  abstract  = {Recently, we introduced a thermoresponsive copolymer that consists of oligo(ethylene glycol) methacrylate (OEGMA) and 2-(2- methoxyethoxy) ethyl methacrylate (MEO(2)MA). The polymer exhibited an LCST at 35 degrees C in PBS buffer and was anchored onto gold substrates using disulfide polymerisation initiators. It allows the noninvasive detachment of adherent cells from their substrate. As the mechanisms that determine the interaction of cells with such polymers are not well understood, we employed Total Internal Reflection Fluorescence (TIRF) microscopy in order to monitor the detachment process of cells of two different types. We identified contact area and average cell-substrate distance as crucial parameters for the evaluation of the detachment process. The sensitivity of TIRF microscopy allowed us to correlate the specific adhesion pattern of MCF-7 breast cancer cells with the morphology of cell deposits that may serve as fingerprints for a nondestructive characterisation of live cells.},
  language  = {en}
}
@article{VallerianiIgnatovaNagaretal.2010,
  author    = {Valleriani, Angelo and Ignatova, Zoya and Nagar, Apoorva and Lipowsky, Reinhard},
  title     = {Turnover of messenger RNA : polysome statistics beyond the steady state},
  issn      = {0295-5075},
  doi       = {10.1209/0295-5075/89/58003},
  year      = {2010},
  abstract  = {The interplay between turnover or degradation and ribosome loading of messenger RNA (mRNA) is studied theoretically using a stochastic model that is motivated by recent experimental results. Random mRNA degradation affects the statistics of polysomes, i.e., the statistics of the number of ribosomes per mRNA as extracted from cells. Since ribosome loading of newly created mRNA chains requires some time to reach steady state, a fraction of the extracted mRNA/ ribosome complexes does not represent steady state conditions. As a consequence, the mean ribosome density obtained from the extracted complexes is found to be inversely proportional to the mRNA length. On the other hand, the ribosome density profile shows an exponential decrease along the mRNA for prokaryotes and becomes uniform in eukaryotic cells. Copyright (C) EPLA, 2010},
  language  = {en}
}
@article{VerlindenVleugelsMarchaletal.2010,
  author    = {Verlinden, Heleen and Vleugels, Rut and Marchal, Elisabeth and Badisco, Liesbeth and Pfl{\"u}ger, Hans-Joachim and Blenau, Wolfgang and Vanden Broeck, Jozef},
  title     = {The role of octopamine in locusts and other arthropods},
  issn      = {0022-1910},
  doi       = {10.1016/j.jinsphys.2010.05.018},
  year      = {2010},
  abstract  = {The biogenic amine octopamine and its biological precursor tyramine are thought to be the invertebrate functional homologues of the vertebrate adrenergic transmitters. Octopamine functions as a neuromodulator, neurotransmitter and neurohormone in insect nervous systems and prompts the whole organism to "dynamic action". A growing number of studies suggest a prominent role for octopamine in modulating multiple physiological and behavioural processes in invertebrates, as for example the phase transition in Schistocerca gregaria. Both octopamine and tyramine exert their effects by binding to specific receptor proteins that belong to the superfamily of G protein-coupled receptors. Since these receptors do not appear to be present in vertebrates, they may present very suitable and specific insecticide and acaricide targets. (C) 2010 Elsevier Ltd. All rights reserved.},
  language  = {en}
}
@article{VerlindenVleugelsMarchaletal.2010,
  author    = {Verlinden, Heleen and Vleugels, Rut and Marchal, Elisabeth and Badisco, Liesbeth and Tobback, Julie and Pfl{\"u}ger, Hans-Joachim and Blenau, Wolfgang and Vanden Broeck, Jozef},
  title     = {The cloning, phylogenetic relationship and distribution pattern of two new putative GPCR-type octopamine receptors in the desert locust (Schistocerca gregaria)},
  issn      = {0022-1910},
  doi       = {10.1016/j.jinsphys.2010.03.003},
  year      = {2010},
  abstract  = {The biogenic amine octopamine functions as a neuromodulator, neurotransmitter and neurohormone in insect nervous systems. It plays a prominent role in modulating multiple physiological and behavioural processes in invertebrates. Octopamine exerts its effects by binding to specific receptor proteins that belong to the superfamily of G protein-coupled receptors. We found two partial sequences of putative octopamine receptors in the desert locust Schistocerca gregaria (SgOct alpha R and SgOct beta R) and investigated their transcript levels in males and females of both phases and during the transition between long-term solitarious and gregarious locusts. The transcript levels of SgOctaR are the highest in the central nervous system, whereas those of SgOct beta R are the highest in the flight muscles, followed by the central nervous system. Both SgOct alpha R and SgOct beta R show higher transcript levels in long-term gregarious locusts as compared to solitarious ones. The rise of SgOct beta R transcript levels already appears during the first 4 h of gregarisation, during which also the behavioural changes take place.},
  language  = {en}
}