@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}
}
@inproceedings{BandaGallagher2010,
  author    = {Banda, Gourinath and Gallagher, John P.},
  title     = {Constraint-based abstraction of a model checker for infinite state systems},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41516},
  year      = {2010},
  abstract  = {Abstract interpretation-based model checking provides an approach to verifying properties of infinite-state systems. In practice, most previous work on abstract model checking is either restricted to verifying universal properties, or develops special techniques for temporal logics such as modal transition systems or other dual transition systems. By contrast we apply completely standard techniques for constructing abstract interpretations to the abstraction of a CTL semantic function, without restricting the kind of properties that can be verified. Furthermore we show that this leads directly to implementation of abstract model checking algorithms for abstract domains based on constraints, making use of an SMT solver.},
  language  = {en}
}
@article{PuigSamperRebok2010,
  author    = {Puig-Samper, Miguel {\´A}ngel and Rebok, Sandra},
  title     = {Charles Darwin and Alexander von Humboldt},
  series = {Alexander von Humboldt im Netz ; international review for Humboldtian studies},
  volume    = {XI},
  journal   = {Alexander von Humboldt im Netz ; international review for Humboldtian studies},
  number    = {21},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  issn      = {2568-3543},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-51765},
  pages     = {55 -- 64},
  year      = {2010},
  abstract  = {Die besondere Beziehung zwischen Humboldt und Darwin, zwei der bedeutendsten Pers{\"o}nlichkeiten in der Welt der Naturwissenschaften und der Biologie des 19. Jahrhunderts, wird detailliert auf den verschiedenen Ebenen ihres Kontaktes analysiert, sowohl was das real stattgefundene pers{\"o}nliche Treffen betrifft, als auch hinsichtlich ihrer Korrespondenz und der Koinzidenz von Ideen. Dieser wechselseitige Blick zeigt uns wie sich die beiden Gelehrten gegenseitig wahrnahmen, ob sie wirklich versuchten, mit dem Paradigma ihrer bedeutenden Vorg{\"a}nger zu brechen, oder ob sie lediglich schrittweise das bereits erlangte Wissen erweiterten, bis es durch die Erstellung einer genialen Idee zu einem Bruch des bisherigen Wissens kommt. Bekannt ist die wiederholte Referenz von Darwin auf die Werke Humboldts, insbesondere auf die Tageb{\"u}cher des deutschen Naturwissenschaftler und seine Art der Beschreibung der amerikanischen Natur in ihrer ganzen Reichhaltigkeit. Weniger bekannt hingegen sind andere Verweise in seiner Autobiografie, sowie die wissenschaftliche Verwendung des Humboldtschen Werkes oder die Zitate in seiner Korrespondenz, die in diesem Beitrag aufgezeigt werden. Dar{\"u}ber hinaus wird die Verwendung der fr{\"u}hen Schriften von Darwin durch Humboldt in einigen seiner Publikationen, vor allem im Kosmos, erw{\"a}hnt.},
  language  = {en}
}
@phdthesis{Tronci2010,
  author    = {Tronci, Giuseppe},
  title     = {Synthesis, characterization, and biological evaluation of gelatin-based scaffolds},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-49727},
  school      = {Universit{\"a}t Potsdam},
  year      = {2010},
  abstract  = {This work presents the development of entropy-elastic gelatin based networks in the form of films or scaffolds. The materials have good prospects for biomedical applications, especially in the context of bone regeneration. Entropy-elastic gelatin based hydrogel films with varying crosslinking densities were prepared with tailored mechanical properties. Gelatin was covalently crosslinked above its sol gel transition, which suppressed the gelatin chain helicity. Hexamethylene diisocyanate (HDI) or ethyl ester lysine diisocyanate (LDI) were applied as chemical crosslinkers, and the reaction was conducted either in dimethyl sulfoxide (DMSO) or water. Amorphous films were prepared as measured by Wide Angle X-ray Scattering (WAXS), with tailorable degrees of swelling (Q: 300-800 vol. \%) and wet state Young's modulus (E: 70 740 kPa). Model reactions showed that the crosslinking reaction resulted in a combination of direct crosslinks (3-13 mol.-\%), grafting (5-40 mol.-\%), and blending of oligoureas (16-67 mol.-\%). The knowledge gained with this bulk material was transferred to the integrated process of foaming and crosslinking to obtain porous 3-D gelatin-based scaffolds. For this purpose, a gelatin solution was foamed in the presence of a surfactant, Saponin, and the resulting foam was fixed by chemical crosslinking with a diisocyanate. The amorphous crosslinked scaffolds were synthesized with varied gelatin and HDI concentrations, and analyzed in the dry state by micro computed tomography (µCT, porosity: 65±11-73±14 vol.-\%), and scanning electron microscopy (SEM, pore size: 117±28-166±32 µm). Subsequently, the work focused on the characterization of the gelatin scaffolds in conditions relevant to biomedical applications. Scaffolds showed high water uptake (H: 630-1680 wt.-\%) with minimal changes in outer dimension. Since a decreased scaffold pore size (115±47-130±49 µm) was revealed using confocal laser scanning microscopy (CLSM) upon wetting, the form stability could be explained. Shape recoverability was observed after removal of stress when compressing wet scaffolds, while dry scaffolds maintained the compressed shape. This was explained by a reduction of the glass transition temperature upon equilibration with water (dynamic mechanical analysis at varied temperature (DMTA)). The composition dependent compression moduli (Ec: 10 50 kPa) were comparable to the bulk micromechanical Young's moduli, which were measured by atomic force microscopy (AFM). The hydrolytic degradation profile could be adjusted, and a controlled decrease of mechanical properties was observed. Partially-degraded scaffolds displayed an increase of pore size. This was likely due to the pore wall disintegration during degradation, which caused the pores to merge. The scaffold cytotoxicity and immunologic responses were analyzed. The porous scaffolds enabled proliferation of human dermal fibroblasts within the implants (up to 90 µm depth). Furthermore, indirect eluate tests were carried out with L929 cells to quantify the material cytotoxic response. Here, the effect of the sterilization method (Ethylene oxide sterilization), crosslinker, and surfactant were analyzed. Fully cytocompatible scaffolds were obtained by using LDI as crosslinker and PEO40 PPO20-PEO40 as surfactant. These investigations were accompanied by a study of the endotoxin material contamination. The formation of medical-grade materials was successfully obtained (<0.5 EU/mL) by using low-endotoxin gelatin and performing all synthetic steps in a laminar flow hood.},
  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}
}
@book{SmirnovReijersNugterenetal.2010,
  author    = {Smirnov, Sergey and Reijers, Hajo A. and Nugteren, Thijs and Weske, Mathias},
  title     = {Business process model abstraction : theory and practice},
  publisher = {Universit{\"a}tsverlag Potsdam},
  address   = {Potsdam},
  isbn      = {978-3-86956-054-0},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-41782},
  publisher      = {Universit{\"a}t Potsdam},
  pages     = {17},
  year      = {2010},
  abstract  = {Business process management aims at capturing, understanding, and improving work in organizations. The central artifacts are process models, which serve different purposes. Detailed process models are used to analyze concrete working procedures, while high-level models show, for instance, handovers between departments. To provide different views on process models, business process model abstraction has emerged. While several approaches have been proposed, a number of abstraction use case that are both relevant for industry and scientifically challenging are yet to be addressed. In this paper we systematically develop, classify, and consolidate different use cases for business process model abstraction. The reported work is based on a study with BPM users in the health insurance sector and validated with a BPM consultancy company and a large BPM vendor. The identified fifteen abstraction use cases reflect the industry demand. The related work on business process model abstraction is evaluated against the use cases, which leads to a research agenda.},
  language  = {en}
}
@misc{HiemerRoesslerScherbaum2010,
  author    = {Hiemer, Stefan and R{\"o}ßler, Dirk and Scherbaum, Frank},
  title     = {Catalog of Swarm Earthquakes in Vogtland /West Bohemia in 2008/09},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-51710},
  year      = {2010},
  abstract  = {The document contains the catalog of earthquakes in Vogtland /West Bohemia within the period of 2008/10/19 -to- 2009/03/16. The events were recorded by a seismic mini-array operated by the Institute of Earthsciences, University of Postdam.},
  language  = {en}
}
@phdthesis{Blum2010,
  author    = {Blum, Niklas},
  title     = {Formalization of a converged internet and telecommunications service environment},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-51146},
  school      = {Universit{\"a}t Potsdam},
  year      = {2010},
  abstract  = {The programmable network envisioned in the 1990s within standardization and research for the Intelligent Network is currently coming into reality using IPbased Next Generation Networks (NGN) and applying Service-Oriented Architecture (SOA) principles for service creation, execution, and hosting. SOA is the foundation for both next-generation telecommunications and middleware architectures, which are rapidly converging on top of commodity transport services. Services such as triple/quadruple play, multimedia messaging, and presence are enabled by the emerging service-oriented IPMultimedia Subsystem (IMS), and allow telecommunications service providers to maintain, if not improve, their position in the marketplace. SOA becomes the de facto standard in next-generation middleware systems as the system model of choice to interconnect service consumers and providers within and between enterprises. We leverage previous research activities in overlay networking technologies along with recent advances in network abstraction, service exposure, and service creation to develop a paradigm for a service environment providing converged Internet and Telecommunications services that we call Service Broker. Such a Service Broker provides mechanisms to combine and mediate between different service paradigms from the two domains Internet/WWW and telecommunications. Furthermore, it enables the composition of services across these domains and is capable of defining and applying temporal constraints during creation and execution time. By adding network-awareness into the service fabric, such a Service Broker may also act as a next generation network-to-service element allowing the composition of crossdomain and cross-layer network and service resources. The contribution of this research is threefold: first, we analyze and classify principles and technologies from Information Technologies (IT) and telecommunications to identify and discuss issues allowing cross-domain composition in a converging service layer. Second, we discuss service composition methods allowing the creation of converged services on an abstract level; in particular, we present a formalized method for model-checking of such compositions. Finally, we propose a Service Broker architecture converging Internet and Telecom services. This environment enables cross-domain feature interaction in services through formalized obligation policies acting as constraints during service discovery, creation, and execution time.},
  language  = {en}
}
@phdthesis{Shirzaei2010,
  author    = {Shirzaei, Manoochehr},
  title     = {Crustal deformation source monitoring using advanced InSAR time series and time dependent inverse modeling},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-50774},
  school      = {Universit{\"a}t Potsdam},
  year      = {2010},
  abstract  = {Crustal deformation can be the result of volcanic and tectonic activity such as fault dislocation and magma intrusion. The crustal deformation may precede and/or succeed the earthquake occurrence and eruption. Mitigating the associated hazard, continuous monitoring of the crustal deformation accordingly has become an important task for geo-observatories and fast response systems. Due to highly non-linear behavior of the crustal deformation fields in time and space, which are not always measurable using conventional geodetic methods (e.g., Leveling), innovative techniques of monitoring and analysis are required. In this thesis I describe novel methods to improve the ability for precise and accurate mapping the spatiotemporal surface deformation field using multi acquisitions of satellite radar data. Furthermore, to better understand the source of such spatiotemporal deformation fields, I present novel static and time dependent model inversion approaches. Almost any interferograms include areas where the signal decorrelates and is distorted by atmospheric delay. In this thesis I detail new analysis methods to reduce the limitations of conventional InSAR, by combining the benefits of advanced InSAR methods such as the permanent scatterer InSAR (PSI) and the small baseline subsets (SBAS) with a wavelet based data filtering scheme. This novel InSAR time series methodology is applied, for instance, to monitor the non-linear deformation processes at Hawaii Island. The radar phase change at Hawaii is found to be due to intrusions, eruptions, earthquakes and flank movement processes and superimposed by significant environmental artifacts (e.g., atmospheric). The deformation field, I obtained using the new InSAR analysis method, is in good agreement with continuous GPS data. This provides an accurate spatiotemporal deformation field at Hawaii, which allows time dependent source modeling. Conventional source modeling methods usually deal with static deformation field, while retrieving the dynamics of the source requires more sophisticated time dependent optimization approaches. This problem I address by combining Monte Carlo based optimization approaches with a Kalman Filter, which provides the model parameters of the deformation source consistent in time. I found there are numerous deformation sources at Hawaii Island which are spatiotemporally interacting, such as volcano inflation is associated to changes in the rifting behavior, and temporally linked to silent earthquakes. I applied these new methods to other tectonic and volcanic terrains, most of which revealing the importance of associated or coupled deformation sources. The findings are 1) the relation between deep and shallow hydrothermal and magmatic sources underneath the Campi Flegrei volcano, 2) gravity-driven deformation at Damavand volcano, 3) fault interaction associated with the 2010 Haiti earthquake, 4) independent block wise flank motion at the Hilina Fault system, Kilauea, and 5) interaction between salt diapir and the 2005 Qeshm earthquake in southern Iran. This thesis, written in cumulative form including 9 manuscripts published or under review in peer reviewed journals, improves the techniques for InSAR time series analysis and source modeling and shows the mutual dependence between adjacent deformation sources. These findings allow more realistic estimation of the hazard associated with complex volcanic and tectonic systems.},
  language  = {en}
}
@phdthesis{Bach2010,
  author    = {Bach, Stefan},
  title     = {Empirical studies on tax distribution and tax reform in Germany},
  url       = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-60289},
  school      = {Universit{\"a}t Potsdam},
  year      = {2010},
  abstract  = {This professorial dissertation thesis collects several empirical studies on tax distribution and tax reform in Germany. Chapter 2 deals with two studies on effective income taxation, based on representative micro data sets from tax statistics. The first study analyses the effective income taxation at the individual level, in particular with respect to the top incomes. It is based on an integrated micro data file of household survey data and income tax statistics, which captures the entire income distribution up to the very top. Despite substantial tax base erosion and reductions of top tax rates, the German personal income tax has remained effectively progressive. The distribution of the tax burden is highly concentrated and the German economic elite is still taxed relatively heavily, even though the effective tax rate for this group has significantly declined. The second study of Chapter 2 highlights the effective income taxation of functional income sources, such as labor income, business and capital income, etc. Using income tax micro data and microsimulation models, we allocate the individual income tax liability to the respective income sources, according to different apportionment schemes accounting for losses. We find that the choice of the apportionment scheme markedly affects the tax shares of income sources and implicit tax rates, in particular those of capital income. Income types without significant losses such as labor income or transfer incomes show higher tax shares and implicit tax rates if we account for losses. The opposite is true for capital income, in particular for income from renting and leasing. Chapter 3 presents two studies on business taxation, based on representative micro data sets from tax statistics and the microsimulation model BizTax. The first part provides a study on fundamental reform options for the German local business tax. We find that today's high concentration of local business tax revenues on corporations with high profits decreases if the tax base is broadened by integrating more taxpayers and by including more elements of business value added. The reform scenarios with a broader tax base distribute the local business tax revenue per capita more equally across regional categories. The second study of Chapter 3 discusses the macroeconomic performance of business taxation against the background of corporate income. A comparison of the tax base reported in tax statistics with the macroeconomic corporate income from national accounts gives hints to considerable tax base erosion. The average implicit tax rate on corporate income was around 20 percent since 2001, and thus falling considerably short of statutory tax rates and effective tax rates discussed in the literature. For lack of detailed accounting data it is hard to give precise reasons for the presumptive tax base erosion. Chapter 4 deals with several assessment studies on the ecological tax reform implemented in Germany as of 1999. First, we describe the scientific, ideological, and political background of the ecological tax reform. Further, we present the main findings of a first systematic impact analysis. We employ two macroeconomic models, an econometric input-output model and a recursive-dynamic computable general equilibrium (CGE) model. Both models show that Germany's ecological tax reform helps to reduce energy consumption and CO2 emissions without having a substantial adverse effect on overall economic growth. It could have a slightly positive effect on employment. The reform's impact on the business sector and the effects of special provisions granted to agriculture and the goods and materials sectors are outlined in a further study. The special provisions avoid higher tax burdens on the energy-intensive production. However, they widely reduce the marginal tax rates and thus the incentives to energy saving. Though the reform of special provisions 2003 increased the overall tax burden of the energy-intensive industry, the enlarged eligibility for tax rebates neutralizes the ecologic incentives. Based on the Income and Consumption Survey of 2003, we have analyzed the distributional impact of the ecological tax reform. The increased energy taxes show a clear regressive impact relative to disposable income. Families with children face a higher tax burden relative to household income. The reduction of pension contributions and the automatic adjustment of social security transfers widely mitigate this regressive impact. Households with low income or with many children nevertheless bear a slight increase in tax burden. Refunding the eco tax revenue by an eco bonus would make the reform clearly progressive.},
  language  = {en}
}