@article{Saupe2012, author = {Saupe, Achim}, title = {Zur Kritik des Zeugen in der Konstitutionsphase der modernen Geschichtswissenschaft}, series = {Die Geburt des Zeitzeugen nach 1945}, journal = {Die Geburt des Zeitzeugen nach 1945}, publisher = {Wallstein}, address = {G{\"o}ttingen}, isbn = {978-3-8353-1036-0}, pages = {71 -- 92}, year = {2012}, language = {de} } @article{AltenbergerMejiaJimenezGuenteretal.2012, author = {Altenberger, Uwe and Mejia Jimenez, D. M. and G{\"u}nter, C. and Sierra Rodriguez, G. I. and Scheffler, F. and Oberh{\"a}nsli, Roland}, title = {The Garzn Massif, Colombia-a new ultrahigh-temperature metamorphic complex in the early Neoproterozoic of northern South America}, series = {Mineralogy and petrology}, volume = {105}, journal = {Mineralogy and petrology}, number = {3-4}, publisher = {Springer}, address = {Wien}, issn = {0930-0708}, doi = {10.1007/s00710-012-0202-1}, pages = {171 -- 185}, year = {2012}, abstract = {The Garzn Complex of the Garzn Massif in SW Colombia is composed of the Vergel Granulite Unit (VG) and the Las Margaritas Migmatite Unit (LMM). Previous studies reveal peak temperature conditions for the VG of about 740 A degrees C. The present study considers the remarkable exsolution phenomena in feldspars and pyroxenes and titanium-in-quartz thermometry. Recalculated ternary feldspar compositions indicate temperatures around 900-1,000 A degrees C just at or above the ultra-high temperature-metamorphism (UHTM) boundary of granulites. The calculated temperatures range of exsolved ortho- and clinopyroxenes also supports the existence of an UHTM event. In addition, titanium-in-quartz thermometry points towards ultra-high temperatures. It is the first known UHTM crustal segment in the northern part of South America. Although a mean geothermal gradient of ca 38 A degrees C km(-1) could imply additional heat supply in the lower crust controlling this extreme of peak metamorphism, an alternative model is suggested. The formation of the Vergel Granulite Unit is supposed to be formed in a continental back-arc environment with a thinned and weakened crust behind a magmatic arc (Guapotn-Mancagua Gneiss) followed by collision. In contrast, rocks of the adjacent Las Margaritas Migmatite Unit display "normal" granulite facies temperatures and are formed in a colder lower crust outside the arc, preserved by the Guapotn-Mancagu Gneiss. Back-arc formation was followed by inversion and thickening of the basin. The three units that form the modern-day Garzn Massif, were juxtaposed upon each other during collision (at ca. 1,000 Ma) and exhumation. The collision leading to the deformation of the studied area is part of the Grenville orogeny leading to the amalgamation of Rodinia.}, language = {en} } @article{GoepelHoelzleKnyphausenAufsess2012, author = {G{\"o}pel, Monique and H{\"o}lzle, Katharina and Knyphausen-Aufsess, Dodo Zu}, title = {Individuals' innovation response behaviour a framework of antecedents and opportunities for future research}, series = {Creativity and innovation management}, volume = {21}, journal = {Creativity and innovation management}, number = {4}, publisher = {Wiley-Blackwell}, address = {Hoboken}, issn = {0963-1690}, doi = {10.1111/caim.12000}, pages = {412 -- 426}, year = {2012}, abstract = {Innovation response behaviour is defined as individuals novelty-supporting or novelty-impeding action when navigating innovation initiatives through the organization. A typology of innovation response behaviour is developed, distinguishing between active and passive modes of conduct for novelty-supporting and novelty-impeding behaviour, respectively. The antecedents of innovation response behaviour are delineated based on West and Farr's five-factor model of individual innovation. Moreover, we argue that within organizational contexts, individuals often fail to implement their ideas due to innovation barriers, perceived as factors that are beyond their control. Based on the theory of planned behaviour, we reveal how these barriers influence individuals intentional and exhibited innovation response behaviour. Propositions about proximal and distal antecedents of individuals innovation response behaviour are derived. Proposing a research framework to study the organizational process of innovation from an actor-based perspective, this paper intends to link existing research on individual innovation with the process of innovation at the organizational level, explicitly accounting for the socio-political dynamics and arising managerial problems associated with successful innovation implementation within organizational realities. Implications for research in innovation management are discussed and avenues for future research outlined.}, language = {en} } @article{HaferSchumann2012, author = {Hafer, J{\"o}rg and Schumann, Marlen}, title = {Studeineingangsphase und die strukturelle Verankerung von E-Learning in Studium und Lehre: E-Teaching als Element zur Gestaltung des Studenten-Life-Cycle}, isbn = {978-3- 937026-77-0}, year = {2012}, language = {de} } @article{BorchardtTrauth2012, author = {Borchardt, Sven and Trauth, Martin H.}, title = {Remotely-sensed evapotranspiration estimates for an improved hydrological modeling of the early holocene mega-lake Suguta, northern Kenya Rift}, series = {Palaeogeography, palaeoclimatology, palaeoecology : an international journal for the geo-sciences}, volume = {361}, journal = {Palaeogeography, palaeoclimatology, palaeoecology : an international journal for the geo-sciences}, number = {22}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0031-0182}, doi = {10.1016/j.palaeo.2012.07.009}, pages = {14 -- 20}, year = {2012}, abstract = {The actual evapotranspiration is an important, but difficult to determine, element in the water balance of lakes and their catchment areas. Reliable data on evapotranspiration are not available for most lake basins for which paleoclimate reconstructions and modeling have been performed, particularly those in remote parts of Africa. We have used thermal infrared multispectral data for 14 ASTER scenes from the TERRA satellite to estimate the actual evapotranspiration in the 12,800 km(2) catchment of the Suguta Valley, northern Kenya Rift Evidence from sediments and paleo-shorelines indicates that, during the African Humid Period (AHP, 14.8 to 5.5 kyrs BP), this valley contained a large lake, 280 m deep and covering similar to 2200 km(2), which has now virtually disappeared. Evapotranspiration estimates for the Suguta Basin were generated using the Surface Energy Balance Algorithm for Land (SEBAL). Climate data required for the model were extracted from a high-resolution gridded dataset obtained from the Climatic Research Unit (East Anglia, UK). Results suggest significant spatial variations in evapotranspiration within the catchment area (ranging from 450 mm/yr in the basin to the north to 2000 mm/yr in more elevated areas) and precipitation that was similar to 20\% higher during the AHP than in recent times. These results are in agreement with other estimates of paleo-precipitation in East Africa. The extreme response of the lake system (similar to 280 m greater water depth than today, and a lake surface area of 2200 km(2)) to only moderately higher precipitation illustrates the possible sensitivity of this area to future climate change.}, language = {en} } @article{Kotowski2012, author = {Kotowski, Elke-Vera}, title = {Tanz auf dem Vulkan : die Jahre der Weimarer Republik}, isbn = {978-3-8148-0193-3}, year = {2012}, language = {de} } @article{Klages2012, author = {Klages, Benjamin}, title = {Professionelles Handeln in der Hochschullehre}, isbn = {978-3- 937026-77-0}, year = {2012}, language = {de} } @article{Thorau2012, author = {Thorau, Christian}, title = {Psssst! - In search of the listeners of the past}, series = {Neue Zeitschrift f{\"u}r Musik}, journal = {Neue Zeitschrift f{\"u}r Musik}, number = {5}, publisher = {Schott}, address = {Mainz}, issn = {0945-6945}, pages = {18 -- 22}, year = {2012}, language = {de} } @article{MuehlJaeckel2012, author = {M{\"u}hl-J{\"a}ckel, Margarete}, title = {Erfahrungen mit der Privatisierung in der Praxis}, series = {KWI-Schriften}, journal = {KWI-Schriften}, number = {6}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1867-951X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62232}, pages = {33 -- 47}, year = {2012}, abstract = {Inhalt: I. Vorbemerkung II. Was wird privatisiert? III. Warum privatisieren Kommunen? IV. Der rechtliche Ausgangspunkt f{\"u}r Privatisierungsbestrebungen V. Ausgew{\"a}hlte Themenbereiche 1. Bundesrecht und Unternehmenssteuerung 2. Privatisierung und Vergaberecht 3. Privatisierung und Konkurrentenschutz}, language = {de} } @article{Bruening2012, author = {Br{\"u}ning, Christoph}, title = {Rechtliche Voraussetzungen der Rekommunalisierung}, series = {KWI-Schriften}, journal = {KWI-Schriften}, number = {6}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1867-951X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62255}, pages = {59 -- 71}, year = {2012}, abstract = {Inhalt: I. Aufmerksamkeitsfelder II. Organisationswahlfreiheit III. Steuerungsressource Organisation IV. Verfassungsrechtliche Determinanten V. Einfach-rechtliche Vorgaben 1. Funktionale Ad{\"a}quanz 2. Wirtschaftlichkeitsvergleich 3. Legitimationsniveau VI. Ausblick}, language = {de} } @article{Kunze2012, author = {Kunze, Sebastian}, title = {Konzessionsvertr{\"a}ge - Handlungsoptionen f{\"u}r Kommunen}, series = {KWI-Schriften}, journal = {KWI-Schriften}, number = {6}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1867-951X}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62280}, pages = {99 -- 109}, year = {2012}, abstract = {Inhalt: I. Einleitung - Befundnahme II. Vor{\"u}berlegungen der Rekommunalisierungsentscheidung in der Energiewirtschaft 1. Zieldreieck der Energiepolitik 2. Ziele kommunaler Energiepolitik 3. Zuordnung der Ziele unter besonderer Ber{\"u}cksichtigung des Energiemarktes 4. Mythos Eigenkapitalrendite im Netzbetrieb und Strompreisregulierung III. Konkrete M{\"o}glichkeiten der Konzessionsvergabe 1. Wegenutzungsvertrag mit dem bisherigen Netzbetreiber 2. Wegenutzungsvertrag mit einem neuen Netzbetreiber 3. Beteiligungsmodelle a) Klassisches Partnermodell b) Dienstleistermodell c) Pachtmodell IV. Risiken der Rekommunalisierung 1. Kaufpreis, Entflechtungs- und Einbindungskosten 2. Gewerbesteuer 3. Personal 4. Keine Vergleichbarkeit mit fr{\"u}heren Stadtwerkegr{\"u}ndungen V. Auswirkungen regionaler Rekommunalisierungen VI. Fazit}, language = {de} } @article{KetmaierMarroneAlfonsoetal.2012, author = {Ketmaier, Valerio and Marrone, Federico and Alfonso, Giuseppe and Paulus, Kirsten B. and Wiemann, Annika and Tiedemann, Ralph and Mura, Graziella}, title = {Mitochondrial DNA regionalism and historical demography in the extant populations of chirocephalus kerkyrensis (Branchiopoda: Anostraca)}, series = {PLoS one}, volume = {7}, journal = {PLoS one}, number = {2}, publisher = {PLoS}, address = {San Fransisco}, issn = {1932-6203}, doi = {10.1371/journal.pone.0030082}, pages = {11}, year = {2012}, abstract = {Background: Mediterranean temporary water bodies are important reservoirs of biodiversity and host a unique assemblage of diapausing aquatic invertebrates. These environments are currently vanishing because of increasing human pressure. Chirocephalus kerkyrensis is a fairy shrimp typical of temporary water bodies in Mediterranean plain forests and has undergone a substantial decline in number of populations in recent years due to habitat loss. We assessed patterns of genetic connectivity and phylogeographic history in the seven extant populations of the species from Albania, Corfu Is. (Greece), Southern and Central Italy. Methodology/Principal Findings: We analyzed sequence variation at two mitochondrial DNA genes (Cytochrome Oxidase I and 16s rRNA) in all the known populations of C. kerkyrensis. We used multiple phylogenetic, phylogeographic and coalescence-based approaches to assess connectivity and historical demography across the whole distribution range of the species. C. kerkyrensis is genetically subdivided into three main mitochondrial lineages; two of them are geographically localized (Corfu Is. and Central Italy) and one encompasses a wide geographic area (Albania and Southern Italy). Most of the detected genetic variation (approximate to 81\%) is apportioned among the aforementioned lineages. Conclusions/Significance: Multiple analyses of mismatch distributions consistently supported both past demographic and spatial expansions with the former predating the latter; demographic expansions were consistently placed during interglacial warm phases of the Pleistocene while spatial expansions were restricted to cold periods. Coalescence methods revealed a scenario of past isolation with low levels of gene flow in line with what is already known for other co-distributed fairy shrimps and suggest drift as the prevailing force in promoting local divergence. We recommend that these evolutionary trajectories should be taken in proper consideration in any effort aimed at protecting Mediterranean temporary water bodies.}, language = {en} } @article{SilvaIturrizaKetmaierTiedemann2012, author = {Silva-Iturriza, Adriana and Ketmaier, Valerio and Tiedemann, Ralph}, title = {Profound population structure in the Philippine Bulbul Hypsipetes philippinus (Pycnonotidae, Ayes) is not reflected in its Haemoproteus haemosporidian parasite}, series = {Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics and infectious diseases (MEEGID)}, volume = {12}, journal = {Infection, genetics and evolution : journal of molecular epidemiology and evolutionary genetics and infectious diseases (MEEGID)}, number = {1}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1567-1348}, doi = {10.1016/j.meegid.2011.10.024}, pages = {127 -- 136}, year = {2012}, abstract = {In this study we used molecular markers to screen for the occurrence and prevalence of the three most common haemosporidian genera (Haemoproteus, Plasmodium, and Leucocytozoon) in blood samples of the Philippine Bulbul (Hypsipetes philippinus), a thrush-size passerine bird endemic to the Philippine Archipelago. We then used molecular data to ask whether the phylogeographic patterns in this insular host-parasite system might follow similar evolutionary trajectories or not. We took advantage of a previous study describing the pattern of genetic structuring in the Philippine Bulbul across the Central Philippine Archipelago (6 islands, 7 populations and 58 individuals; three mitochondrial DNA genes). The very same birds were here screened for the occurrence of parasites by species-specific PCR assays of the mitochondrial cytochrome b gene (471 base pairs). Twenty-eight out of the 58 analysed birds had Haemoproteus (48\%) infections while just 2\% of the birds were infected with either Leucocytozoon or Plasmodium. Sixteen of the 28 birds carrying Haemoproteus had multiple infections. The phylogeography of the Philippine Bulbul mostly reflects the geographical origin of samples and it is consistent with the occurrence of two different subspecies on (1) Semirara and (2) Carabao, Boracay, North Gigante, Panay, and Negros, respectively. Haemoproteus phylogeography shows very little geographical structure, suggesting extensive gene flow among locations. While movements of birds among islands seem very sporadic, we found co-occurring evolutionary divergent parasite lineages. We conclude that historical processes have played a major role in shaping the host phylogeography, while they have left no signature in that of the parasites. Here ongoing population processes, possibly multiple reinvasions mediated by other hosts, are predominant.}, language = {en} } @article{StoofLeichsenringEppTrauthetal.2012, author = {Stoof-Leichsenring, Kathleen Rosemarie and Epp, Laura Saskia and Trauth, Martin H. and Tiedemann, Ralph}, title = {Hidden diversity in diatoms of Kenyan Lake Naivasha a genetic approach detects temporal variation}, series = {Molecular ecology}, volume = {21}, journal = {Molecular ecology}, number = {8}, publisher = {Wiley-Blackwell}, address = {Malden}, issn = {0962-1083}, doi = {10.1111/j.1365-294X.2011.05412.x}, pages = {1918 -- 1930}, year = {2012}, abstract = {This study provides insights into the morphological and genetic diversity in diatoms occurring in core sediments from tropical lakes in Kenya. We developed a genetic survey technique specific for diatoms utilizing a short region (7667 bp) of the ribulose-1,5-bisphosphate carboxylase/oxygenase large subunit (rbcL) gene as genetic barcode. Our analyses (i) validated the use of rbcL as a barcoding marker for diatoms, applied to sediment samples, (ii) showed a significant correlation between the results obtained by morphological and molecular data and (iii) indicated temporal variation in diatom assemblages on the inter- and intra-specific level. Diatom assemblages from a short core from Lake Naivasha show a drastic shift over the last 200 years, as littoral species (e.g. Navicula) are replaced by more planktonic ones (e.g. Aulacoseira). Within that same period, we detected periodic changes in the respective frequencies of distinct haplotype groups of Navicula, which coincide with wet and dry periods of Lake Naivasha between 1820 and 1938 AD. Our genetic analyses on historical lake sediments revealed inter- and intra-specific variation in diatoms, which is partially hidden behind single morphotypes. The occurrence of particular genetic lineages is probably correlated with environmental factors.}, language = {en} } @article{DolgenerSchroederSchneeweissetal.2012, author = {Dolgener, Nicola and Schr{\"o}der, Christiane and Schneeweiss, N. and Tiedemann, Ralph}, title = {Genetic population structure of the Fire-bellied toad Bombina bombina in an area of high population density implications for conservation}, series = {Hydrobiologia : acta hydrobiologica, hydrographica, limnologica et protistologica}, volume = {689}, journal = {Hydrobiologia : acta hydrobiologica, hydrographica, limnologica et protistologica}, number = {1}, publisher = {Springer}, address = {Dordrecht}, issn = {0018-8158}, doi = {10.1007/s10750-012-1016-1}, pages = {111 -- 120}, year = {2012}, abstract = {In this study, we report the genetic population structure of the Fire-bellied toad Bombina bombina in Brandenburg (East Germany) in the context of conservation. We analysed 298 samples originating from 11 populations in Brandenburg using mitochondrial control region sequences and six polymorphic microsatellite loci. For comparison, we included one population each from Poland and Ukraine into our analysis. Within Brandenburg, we detected a moderate variability in the mitochondrial control region (19 different haplotypes) and at microsatellite loci (9-12 alleles per locus). These polymorphisms revealed a clear population structure among toads in Brandenburg, despite a relatively high overall population density and the moderate size of single populations (100-2000 individuals). The overall genetic population structure is consistent with a postglacial colonization from South East-Europe and a subsequent population expansion. Based on genetic connectivity, we infer Management Units (MUs) as targets for conservation. Our genetic survey identified MUs, within which human infrastructure is currently preventing any genetic exchange. We also detect an unintentional translocation from South East to North West Brandenburg, presumably in the course of fish stocking activities. Provided suitable conservation measures are taken, Brandenburg should continue to harbor large populations of this critically endangered species.}, language = {en} } @article{SammlerHavensteinTiedemann2012, author = {Sammler, Svenja and Havenstein, Katja and Tiedemann, Ralph}, title = {Fourteen new microsatellite markers for the Visayan tarictic hornbill (Penelopides panini) and their cross-species applicability among other endangered Philippine hornbills}, series = {Conservation genetics resources}, volume = {4}, journal = {Conservation genetics resources}, number = {2}, publisher = {Springer}, address = {Dordrecht}, issn = {1877-7252}, doi = {10.1007/s12686-011-9567-4}, pages = {435 -- 438}, year = {2012}, abstract = {Fourteen microsatellite markers were isolated and characterized for the endangered Visayan tarictic hornbill (Penelopides panini, Aves: Bucerotidae). In an analysis of 76 individuals, the number of alleles per locus varied from one to 12. Expected and observed heterozygosity ranged from 0.00 to 0.87 and from 0.00 to 0.89, respectively. All primers also amplify microsatellite loci in Luzon tarictic hornbill (Penelopides manillae), Mindanao tarictic hornbill (Penelopides affinis), the critically endangered Walden's hornbill (Aceros waldeni) and the near-threatened writhed hornbill (Aceros leucocephalus). Two loci which are monomorphic in P. panini were found polymorphic in at least one of the other species. These 14 new microsatellite markers specifically developed for two genera of Philippine hornbills, in combination with those already available for the hornbill genera Buceros and Bucorvus, comprise a reasonable number of loci to genetically analyse wild and captive populations of these and probably other related, often endangered hornbills.}, language = {en} } @article{GirndtRieschSchroederetal.2012, author = {Girndt, Antje and Riesch, R{\"u}diger and Schr{\"o}der, Christiane and Sehlupp, Ingo and Plath, Martin and Tiedemann, Ralph}, title = {Multiple paternity in different populations of the sailfin molly, Poecilia latipinna}, series = {Animal biology}, volume = {62}, journal = {Animal biology}, number = {3}, publisher = {Brill}, address = {Leiden}, issn = {1570-7555}, doi = {10.1163/157075611X618192}, pages = {245 -- 262}, year = {2012}, abstract = {Rates of multiple paternities were investigated in the sailfin molly (Poecilia latipinna), using eight microsatellite loci. Genotyping was performed for offspring and mothers in 40 broods from four allopatric populations from the south-eastern U.S.A. along a geographic stretch of 1200 km in west-east direction and approximately 200 km from north to south. No significant differences regarding rates of multiple paternities were found between populations despite sample populations stemming from ecologically divergent habitats. Even the most conservative statistical approach revealed a minimum of 70\% of the broods being sired by at least two males, with an average of 1.80-2.95 putative fathers per brood. Within broods, one male typically sired far more offspring than would be expected under an assumed equal probability of all detected males siring offspring.}, language = {en} } @article{NahavandiKetmaierTiedemann2012, author = {Nahavandi, Nahid and Ketmaier, Valerio and Tiedemann, Ralph}, title = {Intron structure of the elongation factor 1-alpha gene in the ponto-caspian amphipod pontogammarus maeoticus (Sowinsky, 1894) and its phylogeographic utility}, series = {Journal of crustacean biology}, volume = {32}, journal = {Journal of crustacean biology}, number = {3}, publisher = {Brill}, address = {San Antonio}, issn = {0278-0372}, doi = {10.1163/193724012X626584}, pages = {425 -- 433}, year = {2012}, abstract = {We tested the utility of a 230 base pair intron fragment of the highly conserved nuclear gene Elongation Factor 1-alpha (EF1-alpha) as a proper marker to reconstruct the phylogeography of the marine amphipod Pontogammarus maeoticus (Sowinsky, 1894) from the Caspian and Black Seas. As a prerequisite for further analysis, we confirmed by Southern blot analysis that EF1-alpha is encoded at a single locus in P. maeoticus. We included 15 populations and 60 individuals in the study. Both the phylogeny of the 27 unique alleles found and population genetic analyses revealed a significant differentiation between populations from the aforementioned sea basins. Our results are in remarkable agreement with recent studies on a variety of species from the same area, which invariably support a major phylogeographic break between the Caspian and Black Seas. We thus conclude that our EF1-alpha intron is an informative marker for phylogeographic studies in amphipods at the shallow population level.}, language = {en} } @article{SammlerKetmaierHavensteinetal.2012, author = {Sammler, Svenja and Ketmaier, Valerio and Havenstein, Katja and Krause, Ulrike and Curio, Eberhard and Tiedemann, Ralph}, title = {Mitochondrial control region I and microsatellite analyses of endangered Philippine hornbill species (Aves; Bucerotidae) detect gene flow between island populations and genetic diversity loss}, series = {BMC evolutionary biology}, volume = {12}, journal = {BMC evolutionary biology}, number = {25}, publisher = {BioMed Central}, address = {London}, issn = {1471-2148}, doi = {10.1186/1471-2148-12-203}, pages = {14}, year = {2012}, abstract = {Background: The Visayan Tarictic Hornbill (Penelopides panini) and the Walden's Hornbill (Aceros waldeni) are two threatened hornbill species endemic to the western islands of the Visayas that constitute - between Luzon and Mindanao - the central island group of the Philippine archipelago. In order to evaluate their genetic diversity and to support efforts towards their conservation, we analyzed genetic variation in similar to 600 base pairs (bp) of the mitochondrial control region I and at 12-19 nuclear microsatellite loci. The sampling covered extant populations, still occurring only on two islands (P. panini: Panay and Negros, A. waldeni: only Panay), and it was augmented with museum specimens of extinct populations from neighboring islands. For comparison, their less endangered (= more abundant) sister taxa, the Luzon Tarictic Hornbill (P. manillae) from the Luzon and Polillo Islands and the Writhed Hornbill (A. leucocephalus) from Mindanao Island, were also included in the study. We reconstructed the population history of the two Penelopides species and assessed the genetic population structure of the remaining wild populations in all four species. Results: Mitochondrial and nuclear data concordantly show a clear genetic separation according to the island of origin in both Penelopides species, but also unravel sporadic over-water movements between islands. We found evidence that deforestation in the last century influenced these migratory events. Both classes of markers and the comparison to museum specimens reveal a genetic diversity loss in both Visayan hornbill species, P. panini and A. waldeni, as compared to their more abundant relatives. This might have been caused by local extinction of genetically differentiated populations together with the dramatic decline in the abundance of the extant populations. Conclusions: We demonstrated a loss in genetic diversity of P. panini and A. waldeni as compared to their sister taxa P. manillae and A. leucocephalus. Because of the low potential for gene flow and population exchange across islands, saving of the remaining birds of almost extinct local populations - be it in the wild or in captivity - is particularly important to preserve the species' genetic potential.}, language = {en} } @article{SchroederPokornyDolgeneretal.2012, author = {Schr{\"o}der, Christiane and Pokorny, Ina and Dolgener, Nicola and Herden, Christoph and Drews, Hauke and Tiedemann, Ralph}, title = {Allochthonous individuals in managed populations of the fire-bellied toad Bombina bombina genetic detection and conservation implications}, series = {Limnologica : ecology and management of inland waters}, volume = {42}, journal = {Limnologica : ecology and management of inland waters}, number = {4}, publisher = {Elsevier}, address = {Jena}, issn = {0075-9511}, doi = {10.1016/j.limno.2012.08.008}, pages = {291 -- 298}, year = {2012}, abstract = {The ongoing global amphibian decline calls for an increase of habitat and population management efforts. Pond restoration and construction is more and more accompanied by breeding and translocation programs. However, the appropriateness of translocations as a tool for conservation has been widely debated, as it can cause biodiversity loss through genetic homogenization and can disrupt local adaptation, eventually leading to outbreeding depression. In this study, we investigated the genetic structure of two translocated populations of the critically endangered fire-bellied toad Bombina bombina at its north western distribution edge using supposedly neutral genetic markers (variation in the mitochondrial control region and microsatellites) as well as a marker under selection (major histocompatibility complex (MHC) genes). While one of the newly established populations showed the typical genetic composition of surrounding populations, the other was extremely diverged without clear affinity to its putative source. In this population we detected a profound impact of allochthonous individuals: 100\% of the analyzed individuals exhibited a highly divergent mitochondrial haplotype which was otherwise found in Austria. 83\% of them were also assigned to Austria by the analysis of microsatellites. Interestingly, for the adaptive marker (MHC) local alleles were predominant in this population, while only very few alleles were shared with the Austrian population. Probably Mendelian inheritance has reshuffled genotypes such that adaptive local alleles are maintained (here, MHC), while presumably neutral allochthonous alleles dominate at other loci. The release of allochthonous individuals generally increased the genetic variability of the affected population without wiping out locally adaptive genotypes. Thus, outbreeding depression might be less apparent than sometimes thought and natural selection appears strong enough to maintain locally adaptive alleles, at least in functionally important immune system genes.}, language = {en} } @article{SilvaIturrizaKetmaierTiedemann2012, author = {Silva-Iturriza, Adriana and Ketmaier, Valerio and Tiedemann, Ralph}, title = {Prevalence of avian haemosporidian parasites and their host fidelity in the central Philippine islands}, series = {PARASITOLOGY INTERNATIONAL}, volume = {61}, journal = {PARASITOLOGY INTERNATIONAL}, number = {4}, publisher = {ELSEVIER IRELAND LTD}, address = {CLARE}, issn = {1383-5769}, doi = {10.1016/j.parint.2012.07.003}, pages = {650 -- 657}, year = {2012}, abstract = {We examined the prevalence and host fidelity of avian haemosporidian parasites belonging to the genera Haemoproteus, Leucocytozoon and Plasmodium in the central Philippine islands by sampling 23 bird families (42 species). Using species-specific PCR assays of the mitochondrial cytochrome b gene (471 base pairs, bp), we detected infections in 91 of the 215 screened individuals (42\%). We also discriminated between single and multiple infections. Thirty-one infected individuals harbored a single Haemoproteus lineage (14\%), 18 a single Leucocytozoon lineage (8\%) and 12 a single Plasmodium lineage (6\%). Of the 215 screened birds, 30 (14\%) presented different types of multiple infections. Intrageneric mixed infections were generally more common (18 Haemoproteus/Haemoproteus, 3 Leucocytozoon/Leucocytozoon, and 1 Plasmodium/Plasmodium) than intergeneric mixed infections (7 Haemoproteus/Leucocytozoon and 1 Haemoproteus/Leucocytozoon/Plasmodium). We recovered 81 unique haemosporidian mitochondrial haplotypes. These clustered in three strongly supported monophyletic clades that correspond to the three haemosporidian genera. Related lineages of Haemoproteus and Leucocytozoon were more likely to derive from the same host family than predicted by chance; however, this was not the case for Plasmodium. These results indicate that switches between host families are more likely to occur in Plasmodium. We conclude that Haemoproteus has undergone a recent diversification across well-supported host-family specific clades, while Leucocytozoon shows a longer association with its host(s). This study supports previous evidence of a higher prevalence and stronger host-family specificity of Haemoproteus and Leucocytozoon compared to Plasmodium. (C) 2012 Elsevier Ireland Ltd. All rights reserved.}, language = {en} } @article{PavesiDeidunDeMatthaeisetal.2012, author = {Pavesi, Laura and Deidun, Alan and De Matthaeis, Elvira and Tiedemann, Ralph and Ketmaier, Valerio}, title = {Mitochondrial DNA and microsatellites reveal significant divergence in the beachflea Orchestia montagui (Talitridae: Amphipoda)}, series = {Aquatic sciences : research across boundaries}, volume = {74}, journal = {Aquatic sciences : research across boundaries}, number = {3}, publisher = {Springer}, address = {Basel}, issn = {1015-1621}, doi = {10.1007/s00027-012-0250-y}, pages = {587 -- 596}, year = {2012}, abstract = {Talitrids are semiterrestrial crustacean amphipods inhabiting sandy and rocky beaches; they generally show limited active dispersal over long distances. In this study we assessed levels of population genetic structure and variability in the talitrid amphipod Orchestia montagui, a species strictly associated to stranded decaying heaps of the seagrass Posidonia oceanica. The study is based on six populations (153 individuals) and covers five basins of the Mediterranean Sea (Tyrrhenian, Ionian, Adriatic, Western and Eastern basins). Samples were screened for polymorphisms at a fragment of the mitochondrial DNA (mtDNA) coding for the cytochrome oxidase subunit I gene (COI; 571 base pairs) and at eight microsatellite loci. MtDNA revealed a relatively homogeneous haplogroup, which clustered together the populations from the Western, Tyrrhenian and Eastern basins, but not the populations from the Adriatic and Ionian ones; microsatellites detected two clusters, one including the Adriatic and Ionian populations, the second grouping all the others. We found a weak geographic pattern in the genetic structuring of the species, with a lack of isolation by distance at either class of markers. Results are discussed in terms of probability of passive dispersal over long distances through heaps of seagrass.}, language = {en} } @article{Peters2012, author = {Peters, Friedrich Ernst}, title = {"Ulenspegel un Jan Dood"}, series = {Digitale Edition : Friedrich Peters}, journal = {Digitale Edition : Friedrich Peters}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58086}, year = {2012}, abstract = {Charakterisierung des literarischen Schaffens von Moritz Jahn. Seine Bedeutung f{\"u}r das Plattdeutsche. F. E. Peters beschreibt, Moritz Jahn humorvoll folgend, "polare Spannungen" in Niederdeutschland: "Es gibt Niederdeutsche, die ihrem Lande nie so ganz trauen, die daheim in einer immerw{\"a}hrenden leisen Unruhe hinleben und die aufatmen, wenn sie in gebirgiger Gegend das nackte Gestein unter ihren F{\"u}ßen f{\"u}hlen. Dann wird klar, was sie sich bis dahin m{\"u}hsam verhehlt haben: dass sie n{\"a}mlich in einem geheimen Winkel ihrer Seele glauben, ihr Land sei vom Meere untersp{\"u}lt, k{\"o}nne an besonders d{\"u}nnen Stellen durchbrechen, vom festen Kern der Erde losgerissen werden und in die Nebel der Unendlichkeit hinaustreiben. Auf felsigem Grund werden sie dann die neue und wohltuende Sicherheit mit großer Freude so lange genießen, bis das unwiderstehliche Heimweh sie zur{\"u}cktreibt in die Unsicherheit."}, language = {de} } @article{Peters2012, author = {Peters, Friedrich Ernst}, title = {Meissenheim}, series = {Digitale Edition : Friedrich Peters}, journal = {Digitale Edition : Friedrich Peters}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57979}, year = {2012}, abstract = {Beschreibung einer Reise durch das Elsass verflochten mit Zitaten aus F. H{\"o}lderlins Gedicht „Der Rhein" (1801) und Entdeckung des Friederike-Brion-Grabes in Meißenheim. Peters entzaubert den Friederike-Mythos mit einer empathisch-kritischen Frage, die literarische {\"U}berh{\"o}hung und Lebenswirklichkeit kontrastiert: „Dem M{\"a}dchen aus Sesenheim geschah Leid von dem Halbgott. Leid war der Preis f{\"u}r das Licht der Unsterblichkeit,… War der Preis zu hoch?"}, language = {de} } @article{Peters2012, author = {Peters, Friedrich Ernst}, title = {Timm Kr{\"o}ger}, series = {Digitale Edition : Friedrich Peters}, journal = {Digitale Edition : Friedrich Peters}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57984}, year = {2012}, abstract = {Der norddeutsche Schriftsteller Timm Kr{\"o}ger ist in Haale (Kreis Rendsburg-Eckernf{\"o}rde) geboren, einem Dorf, das in n{\"a}chster N{\"a}he von Luhnstedt, dem Heimatdorf von F.E. Peters, liegt. Peters und Kr{\"o}ger sind sich nie pers{\"o}nlich begegnet, hatten aber gemeinsame Bekannte. „Timm Kr{\"o}ger - der Dichter unserer Heimat" stammt aus dem Nachlass von F.E. Peters, der ein Bewunderer der Kunst Timm Kr{\"o}gers war und den „besonderen lyrischen Schimmer" seiner Erz{\"a}hlkunst geliebt hat. Die Rede ist anl{\"a}sslich des 110. Geburtstages von Timm Kr{\"o}ger entstanden. Peters nimmt das Jubil{\"a}um zum Anlass, anhand von Zitaten aus Kr{\"o}gers Vorwort zu einer Gesamtausgabe seiner Werke die Gattung Heimatdichtung kritisch zu beleuchten und zu unterscheiden zwischen einer ideologisch gef{\"a}rbten schablonenhaften Heimatdichtung und einer Dichtung, welche die Landschaften der Heimat in den Mittelpunkt stellt, das Provinzielle jedoch {\"u}berwindet: „Es sei zugegeben, dass von sogenannten Heimatdichtern viel plattes Zeug geliefert wird. Darum spreche ich heute von dem Dichter unserer Heimat, nicht von dem Heimatdichter Timm Kr{\"o}ger."}, language = {de} } @article{Peters2012, author = {Peters, Friedrich Ernst}, title = {S{\"a}chsische Ubiquit{\"a}t}, series = {Digitale Edition : Friedrich Peters}, journal = {Digitale Edition : Friedrich Peters}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57994}, year = {2012}, abstract = {Humorvolle Schilderung einer Alltagsszene im Dresdener Museum vor Rembrandts Bild „Ganymed in den F{\"a}ngen des Adlers" mit geistreichem Br{\"u}ckenschlag zu Langbehns „Rembrandt als Erzieher" (1890).}, language = {de} } @article{Peters2012, author = {Peters, Friedrich Ernst}, title = {Unterschiedliche Moden}, series = {Digitale Edition : Friedrich Peters}, journal = {Digitale Edition : Friedrich Peters}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-58002}, year = {2012}, abstract = {Anekdoten und Beobachtungen zu Denk- und Verhaltensweisen in der norddeutschen Provinz mit sensibler Charakterisierung des l{\"a}ndlichen Lebensrhythmus. Die vierte und die f{\"u}nfte Geschichte findet man auch in der "Baasd{\"o}rper Kr{\"o}nk". „Unterschiedliche Moden" ist eine Hommage an Timm Kr{\"o}ger.}, language = {de} } @article{AzarErdoenmezVerscheijden2012, author = {Azar, Elif Zeynep and Erd{\"o}nmez, {\c{C}}ağlayan and Verscheijden, Desir{\´e}e}, title = {Developing Critical Thinking}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65867}, pages = {87 -- 92}, year = {2012}, abstract = {1. Critical thinking in curriculum framework 2. A general look at critical thinking 3. How critical thinking take s place in the classroom and some specific examples 4. Suggestions 5. Conclusion}, language = {en} } @article{HintzeIvaškaKallenbach2012, author = {Hintze, Katarina and Ivaška, Michal and Kallenbach, Ren{\´e}}, title = {Describing patterns}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65771}, pages = {33 -- 37}, year = {2012}, abstract = {1. What comes to your Mind when you think of 'patterns'? 2. Does your assignment include patterns? 3. Did you decide tu use some of the patterns? 4. If yes, what problem did you explain with the help of patterns? 4. Describe which patterns you used and how you used them 5. Did you explain the concept of a pattern to your pupils? 6. From your point of view - did pattern offer a helpful structure to prepare your lesson? 7. To what extent were patterns useful for the pupils to understand the main topic of the lesson? 8. How would you improve teaching patterns in your assignments? 9. If you didn 't use any patterns , explain why. 10. What do you think about using the concept of patterns in general? 11. Will you use patterns in other lessons in the future? Describe why or why not. 12. Conclusion}, language = {de} } @article{MajerRoell2012, author = {Majer, Zdenko and R{\"o}ll, Juliane}, title = {Deepening understanding}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65784}, pages = {39 -- 44}, year = {2012}, abstract = {1. What do we mean, when we say 'deepening understanding'? 2. Which methods can be used to foster deepening understanding? 3. Examples for deepening understanding based on the assignments 4. Summary of methods and results 5. How did we train deepening under standing in school? 6. What did the pupils learn from it? 7. Our own experiences working on this chapter}, language = {de} } @article{BaarsBajzikPisarčiketal.2012, author = {Baars, Daniela and Bajz{\´i}k, Michal and Pisarč{\´i}k, Stanislav and Weiser, Ines}, title = {Developing critical thinking}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65798}, pages = {45 -- 51}, year = {2012}, abstract = {1. What does critical thinking mean? 2. Critical thinking in school 3. Critical thinking as a process 4. Analysing and evaluating the questionnaire 5. Interview with one of the students 6. Analysis and evaluation of the assignments 7. Conclusion}, language = {en} } @article{RyglSeegerStrehmann2012, author = {R{\´y}gl, Pavel and Seeger, Anett and Strehmann, Anja}, title = {Developing lessons on the basis of the assignments}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65803}, pages = {53 -- 58}, year = {2012}, abstract = {1. What was the aim of your lesson and how helpful was the assignment for planning it? 2. Which tasks did you choose from the assignment (without or with a little change )? 3. Did you work with the teacher Information? Why? What was helpful? 4. What can be improved in the assignment ? 5. Conclusion}, language = {en} } @article{Berner2012, author = {Berner, Elisabeth}, title = {"Erst wusste ich nicht, was tun …"}, series = {Vielheit und Einheit der Germanistik weltweit}, journal = {Vielheit und Einheit der Germanistik weltweit}, number = {11}, publisher = {Lang}, address = {Frankfurt am Main}, isbn = {978-3-631-63211-6}, pages = {189 -- 203}, year = {2012}, language = {de} } @article{Mueller2012, author = {M{\"u}ller, Melanie}, title = {Die Zivilgesellschaft in der internationalen Klimapolitik}, series = {Klimapolitik International}, journal = {Klimapolitik International}, editor = {Kleinw{\"a}chter, Kai}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1868-6222}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-81331}, pages = {59 -- 66}, year = {2012}, abstract = {Die Zivilgesellschaft hat dazu beigetragen, dass die Klimakonferenz in Kopenhagen zu einem Medienereignis wurde. Fernab großer Demonstrationen haben Nichtregierungsorganisationen (NRO) seit Jahren einen guten Zugang zu den internationalen Klimaverhandlungen. Am Beispiel von Chile wird gezeigt, wie Nichtregierungsorganisationen durch professionellen Lobbyismus ihre Positionen in politische Prozesse einspeisen. Sie befinden sich in einem Spannungsfeld von Kooperation und Instrumentalisierung durch politische Entscheidungstr{\"a}ger.}, language = {de} } @article{Schunz2012, author = {Schunz, Simon}, title = {Gescheiterte Klimapolitik?}, series = {Klimapolitik International}, journal = {Klimapolitik International}, editor = {Kleinw{\"a}chter, Kai}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1868-6222}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-81347}, pages = {67 -- 72}, year = {2012}, abstract = {Der Kopenhagener Klimagipfel 2009 ist mit Spannung erwartet worden. Erreicht wurde lediglich ein Minimalkonsens. Der Autor liefert eine akteurszentrierte Deutung des Kopenhagener Abkommens und stellt die Frage nach dem Pr{\"a}zedenzcharakter der Verhandlungen: Handelte es sich um ein einmaliges Versagen multilateraler Diplomatie oder um einen Vorgeschmack auf die weltpolitische Routine des 21. Jahrhunderts?}, language = {de} } @article{Wischer2012, author = {Wischer, Ilse}, title = {History of english historical linguistica}, series = {English Historical Linguistics. Volume 2 (Handb{\"u}cher zur Sprach- und Kommunikationswissenschaft / Handbooks of Linguistics and Communication Science)}, journal = {English Historical Linguistics. Volume 2 (Handb{\"u}cher zur Sprach- und Kommunikationswissenschaft / Handbooks of Linguistics and Communication Science)}, editor = {Bergs, Alexander and Brinton, Laurel J.}, publisher = {de Gruyter}, address = {Mouton}, isbn = {978-3-11214-670-5}, pages = {1325 -- 1340}, year = {2012}, language = {de} } @article{Heimann2012, author = {Heimann, Heinz-Dieter}, title = {Bilder machen Geschichte}, series = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, journal = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, publisher = {Brandenburgische Universit{\"a}tsdruckerei, Verlagsgesellschaft Potsdam mbH}, address = {Potsdam}, isbn = {978-3-00-039489-8}, pages = {13 -- 19}, year = {2012}, language = {de} } @article{Buetow2012, author = {B{\"u}tow, Sascha}, title = {Vom K{\"o}nig neu gestaltet - vom Magistrat treu verwaltet}, series = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, journal = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, publisher = {Brandenburgische Universit{\"a}tsdruckerei, Verlagsgesellschaft Potsdam mbH}, address = {Potsdam}, isbn = {978-3-00-039489-8}, pages = {33 -- 40}, year = {2012}, language = {de} } @article{EichenbergBuetow2012, author = {Eichenberg, Helga and B{\"u}tow, Sascha}, title = {Herzog macht Stadt}, series = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, journal = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, publisher = {Brandenburgische Universit{\"a}tsdruckerei, Verlagsgesellschaft Potsdam mbH}, address = {Potsdam}, isbn = {978-3-00-039489-8}, pages = {57 -- 64}, year = {2012}, language = {de} } @article{Buetow2012, author = {B{\"u}tow, Sascha}, title = {Stadtbrand und Festungsschleifung}, series = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, journal = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, publisher = {Brandenburgische Universit{\"a}tsdruckerei, Verlagsgesellschaft Potsdam mbH}, address = {Potsdam}, isbn = {978-3-00-039489-8}, pages = {79 -- 62}, year = {2012}, language = {de} } @article{Luksch2012, author = {Luksch, Tobias}, title = {Friedrichs St{\"a}dtebauf{\"o}rderung in Treuenbrietzen 1775 - 1785}, series = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, journal = {K{\"o}nig macht Stadt : Preußens und andere Einfl{\"u}sse auf der historischen Stadtkerne in Land Brandenburg}, publisher = {Brandenburgische Universit{\"a}tsdruckerei, Verlagsgesellschaft Potsdam mbH}, address = {Potsdam}, isbn = {978-3-00-039489-8}, pages = {89 -- 96}, year = {2012}, language = {de} } @article{Kraume2012, author = {Kraume, Anne}, title = {Ex-islados : Construcciones de ida y vuelta entre la isla y el continente}, isbn = {978-8-48-489670-8}, year = {2012}, language = {es} } @article{Schmuck2012, author = {Schmuck, Thomas}, title = {Der Briefwechsel zwischen Alexander von Humboldt und Karl Ernst von Baer}, series = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, volume = {XIII}, journal = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, number = {24}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-61419}, pages = {5 -- 20}, year = {2012}, abstract = {Der kurze, nicht vollst{\"a}ndig erhaltene Briefwechsel zwischen Alexander von Humboldt und Karl Ernst von Baer behandelt sehr verschiedene Themen: Politik, Kriegsgefahr, den Wissenschaftsbetrieb, Auszeichnungen und Tagungen, Embryologie und Cholera. Gemeinsam mit Briefen und Reden ergibt sich dabei ein differenziertes Bild der Beurteilung der beiden Wissenschaftler durch den jeweils anderen. W{\"a}hrend Baer sich als Bewunderer Humboldts erweist, erscheint umgekehrt Humboldts Einsch{\"a}tzung Baers als ambivalent.}, language = {de} } @article{AndressNavia2012, author = {Andress, Reinhard and Navia, Silvia}, title = {Das Tagebuch von Carlos Mont{\´u}far}, series = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, volume = {XIII}, journal = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, number = {24}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-61426}, pages = {21 -- 74}, year = {2012}, abstract = {Carlos Mont{\´u}far (1780-1816) war ab Quito das dritte st{\"a}ndige Mitglied der amerikanischen Humboldt-Expedition zusammen mit Aim{\´e} Bonpland. Das Tagebuch, das er vom 9. Juni bis zum 10. September 1802 kurz vor Cajamarca f{\"u}hrte, ist von Interesse f{\"u}r Humboldt-Forscher, zumal Bonpland scheinbar keine Zeugnisse weder in Brief- noch in Tagebuchform {\"u}berlieferte. Recherchen am Original des Mont{\´u}far-Tagebuchs ergaben, dass die 1888 ver{\"o}ffentlichte Transkription durch Marcos Jim{\´e}nez de la Espada aus verschiedenen Gr{\"u}nden problematisch ist. Es muss deshalb ein Desiderat der Humboldt-Forschung sein, eine korrigierte und kommentierte Transkription vorzulegen. Das geschieht hier zusammen mit einer digitalisierten Kopie des Originals}, language = {de} } @article{Suedfels2012, author = {S{\"u}dfels, Aliya-Katarina}, title = {Ludwig Leichhardt und Alexander von Humboldt}, series = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, volume = {XIII}, journal = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, number = {24}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-61446}, pages = {86 -- 101}, year = {2012}, abstract = {Im Juli des Jahres 1841 kommt es zu einem Treffen zwischen zwei M{\"a}nnern, das zun{\"a}chst belanglos erscheint, sich aber Jahre sp{\"a}ter als wichtige historische Begebenheit herausstellen wird. In seinem Pariser B{\"u}ro empf{\"a}ngt der 71j{\"a}hrige Naturforscher Alexander von Humboldt den jungen Preußen Ludwig Leichhardt. Der angehende Naturwissenschaftler erhofft sich Zuspruch und Empfehlung des ber{\"u}hmten Alexander von Humboldts. Die Unterredung ist kurz und verl{\"a}uft f{\"u}r Leichhardt ergebnislos. Es wird das einzige Treffen der beiden Naturwissenschaftler bleiben. Aus heutiger Sicht unverst{\"a}ndlich, da Ludwig Leichhardt und Alexander von Humboldt mehr verband, als ihre Leidenschaft f{\"u}r die Naturwissenschaften. Viel zu wenig ist sich bis jetzt den biographischen Analogien und den vergleichbaren geographischen Leistungen der beiden Preußen gewidmet worden.}, language = {de} } @article{Jahn2012, author = {Jahn, Ilse}, title = {Die Beziehungen Karl Ernst von Baers zu Berliner Zoologen w{\"a}hrend seines Wirkens in K{\"o}nigsberg (1818-1834)}, series = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, volume = {XIII}, journal = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, number = {24}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-61453}, pages = {102 -- 107}, year = {2012}, language = {de} } @article{OPUS4-5927, title = {{\"U}ber die Autoren}, series = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, volume = {XIII}, journal = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, number = {24}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-61460}, pages = {108}, year = {2012}, abstract = {Thomas Schmuck Reinhard Andress Silvia Navia Tobias Kraft Aliya-Katarina S{\"u}dfels Ilse Jahn}, language = {de} } @article{Peters2012, author = {Peters, Friedrich Ernst}, title = {Die Geschichte von Henning Rohwer, den sie Esau nannten}, series = {Digitale Edition : Friedrich Peters}, journal = {Digitale Edition : Friedrich Peters}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-57651}, year = {2012}, abstract = {Henning Rohwer wird im Dorf Esau genannt, weil sein Vater sich dazu entschieden hat, die Erbfolge zu durchbrechen und seinen Bauernhof nicht dem erstgeborenen Henning zu {\"u}bertragen, sondern dem zweiten geeigneteren Sohn Fritz. Fritz soll Anna Harder heiraten. Henning versucht, durch Anritzen des Pferdegeschirrs die Brautfahrt der beiden mit einem t{\"o}dlichen Unfall enden zu lassen und sich auf diese Weise den Hof zur{\"u}ckzuerobern. Diese Geschichte, die in der 1975 posthum publizierten Baasd{\"o}rper Kr{\"o}nk andeutungsweise enthalten ist, wurde von F.E. Peters zu Lebzeiten auf Hochdeutsch ver{\"o}ffentlicht. Sie erz{\"a}hlt von dem sozialen Abstieg eines Verstoßenen und den archaischen Selektionsmechanismen und Abwehrstrategien einer Dorfgemeinschaft, die Verst{\"o}ße ihrer Mitglieder gegen den b{\"a}uerlichen Sitten- und Ehrenkodex hart ahndet.}, language = {de} } @article{Frank2012, author = {Frank, Mario}, title = {Axiom relevance decision engine : technical report}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-72128}, year = {2012}, abstract = {This document presents an axiom selection technique for classic first order theorem proving based on the relevance of axioms for the proof of a conjecture. It is based on unifiability of predicates and does not need statistical information like symbol frequency. The scope of the technique is the reduction of the set of axioms and the increase of the amount of provable conjectures in a given time. Since the technique generates a subset of the axiom set, it can be used as a preprocessor for automated theorem proving. This technical report describes the conception, implementation and evaluation of ARDE. The selection method, which is based on a breadth-first graph search by unifiability of predicates, is a weakened form of the connection calculus and uses specialised variants or unifiability to speed up the selection. The implementation of the concept is evaluated with comparison to the results of the world championship of theorem provers of the year 2012 (CASC J6). It is shown that both the theorem prover leanCoP which uses the connection calculus and E which uses equality reasoning, can benefit from the selection approach. Also, the evaluation shows that the concept is applyable for theorem proving problems with thousands of formulae and that the selection is independent from the calculus used by the theorem prover.}, language = {en} } @article{Kraft2012, author = {Kraft, Tobias}, title = {Textual Differences in Alexander von Humboldt's Essai politique sur l'{\^i}le de Cuba}, series = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, volume = {XIII}, journal = {Alexander von Humboldt im Netz ; international review for Humboldtian studies}, number = {24}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2568-3543}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-61435}, pages = {75 -- 85}, year = {2012}, abstract = {Die vorliegende Studie basiert auf einem Editionsbericht, der 2009 im Rahmen der Konferenz »Alexander von Humboldt and the Hemisphere« an der Vanderbilt University (Nashville, TN) vorgestellt wurde. Die f{\"u}r diese Publikation weiter entwickelte Untersuchung verdeutlicht die Textgenese von Humboldts Essai politique sur l'{\^i}le de Cuba auf der Basis eines Textvergleichs zwischen allen drei "Originalquellen" des Texts. Der hier in seinen Ergebnissen vorgestellte Textvergleich ist Teil des Editionsprojektes »Humboldt in English« (HiE), bei dem sich ein US-deutsches Editorenteam seit 2007 zum Ziel gesetzt haben, kritische Neu{\"u}bersetzungen von drei wichtigen Schriften aus Humboldts »Opus Americanum« anzufertigen (s.a. Fußnote). Der Textvergleich des Essai politique sur l'{\^i}le de Cuba bildete die Textgrundlage f{\"u}r den ersten Band der HiE-Reihe, den 2011 bei Chicago University Press erschienenen The Political Essay on the Island of Cuba (hg. von Vera M. Kutzinski und Ottmar Ette).}, language = {en} } @article{InduliChelotiWasunaetal.2012, author = {Induli, Martha and Cheloti, Michael and Wasuna, Antonina and Wekesa, Ingrid and Wanjohi, John M. and Byamukama, Robert and Heydenrich, Matthias and Makayoto, Moses and Yenesew, Abiy}, title = {Naphthoquinones from the roots of Aloe secundiflora}, series = {Phytochemistry letters}, volume = {5}, journal = {Phytochemistry letters}, number = {3}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1874-3900}, doi = {10.1016/j.phytol.2012.04.014}, pages = {506 -- 509}, year = {2012}, abstract = {Two new naphthoquinones, 5-hydroxy-3,6-dimethoxy-2-methylnaphthalene-1,4-dione and 5,8-dihydroxy-3-methoxy-2-methylnaphthalene-1,4-dione, were isolated from the roots of Aloe secundiflora together with the known compounds chrysophanol, helminthosporin, isoxanthorin, ancistroquinone C, aloesaponarins I and II, aloesaponols I and II, laccaic acid D methyl ester and asphodelin. The structures were elucidated based on spectroscopic evidence. This appears to be the first report on the occurrence of naphthoquinones in the genus Aloe. Aloesaponarin I and 5-hydroxy-3,6-dimethoxy-2-methylnaphthalene-1,4-dione showed anti-bacterial activity against Mycobacterium tuberculosis with MIC values of 21-23 mu g/mL in the Microplate Alamar Blue Assay (MABA) and Low Oxygen Recovery Assay (LORA); 5-hydroxy-3,6-dimethoxy-2-methylnaphthalene-1,4-dione also showed cytotoxicity against the Vero cell line (IC50 = 10.2 mu g/mL).}, language = {en} } @article{GumulaHeydenreichDereseetal.2012, author = {Gumula, Ivan and Heydenreich, Matthias and Derese, Solomon and Ndiege, Isaiah O. and Yenesew, Abiy}, title = {Four isoflavanones from the stem bark of Platycelphium voense}, series = {Phytochemistry letters}, volume = {5}, journal = {Phytochemistry letters}, number = {1}, publisher = {Elsevier}, address = {Amsterdam}, issn = {1874-3900}, doi = {10.1016/j.phytol.2011.11.012}, pages = {150 -- 154}, year = {2012}, abstract = {From the stem bark of Platycelphium voense (Leguminosae) four new isoflavanones were isolated and characterized as (S)-5,7-dihydroxy-2 ',4 '-dimethoxy-3 '-(3 ''-methylbut-2 ''-enyl)-isoflavanone (trivial name platyisoflavanone A), (+)-5,7,2 '-trihydroxy-4 '-methoxy-3 '-(3 ''-methylbut-2 ''-enyl)-isoflavanone (platyisoflavanone B), 5,7-dihydroxy-4 '-methoxy-2 ''-(2 '''-hydroxyisopropyl)-dihydrofurano-[4 '',5 '':3 ',2 ']-isoflavanone (platyisoflavanone C) and 5,7,2 ',3 ''-tetrahydroxy-2 '',2 ''-dimethyldihydropyrano-[5 '',6 '':3 ',4 ']-isoflavanone (platyisoflavanone D). In addition, the known isoflavanones, sophoraisoflavanone A and glyasperin F; the isoflavone, formononetin; two flavones, kumatakenin and isokaempferide; as well as two triterpenes, betulin and beta-amyrin were identified. The structures were elucidated on the basis of spectroscopic evidence. Platyisoflavanone A showed antibacterial activity against Mycobacterium tuberculosis in the microplate alamar blue assay (MABA) with MIC = 23.7 mu M, but also showed cytotoxicity (IC50 = 21.1 mu M) in the vero cell test.}, language = {en} } @article{SemmoHildebrandtTrappetal.2012, author = {Semmo, Amir and Hildebrandt, Dieter and Trapp, Matthias and D{\"o}llner, J{\"u}rgen Roland Friedrich}, title = {Concepts for cartography-oriented visualization of virtual 3D city models}, series = {Photogrammetrie, Fernerkundung, Geoinformation}, journal = {Photogrammetrie, Fernerkundung, Geoinformation}, number = {4}, publisher = {Schweizerbart}, address = {Stuttgart}, issn = {1432-8364}, doi = {10.1127/1432-8364/2012/0131}, pages = {455 -- 465}, year = {2012}, abstract = {Virtual 3D city models serve as an effective medium with manifold applications in geoinformation systems and services. To date, most 3D city models are visualized using photorealistic graphics. But an effective communication of geoinformation significantly depends on how important information is designed and cognitively processed in the given application context. One possibility to visually emphasize important information is based on non-photorealistic rendering, which comprehends artistic depiction styles and is characterized by its expressiveness and communication aspects. However, a direct application of non-photorealistic rendering techniques primarily results in monotonic visualization that lacks cartographic design aspects. In this work, we present concepts for cartography-oriented visualization of virtual 3D city models. These are based on coupling non-photorealistic rendering techniques and semantics-based information for a user, context, and media-dependent representation of thematic information. This work highlights challenges for cartography-oriented visualization of 3D geovirtual environments, presents stylization techniques and discusses their applications and ideas for a standardized visualization. In particular, the presented concepts enable a real-time and dynamic visualization of thematic geoinformation.}, language = {en} } @article{ParedesBooAmoretal.2012, author = {Paredes, E. G. and Boo, M. and Amor, M. and Bruguera, J. D. and D{\"o}llner, J{\"u}rgen Roland Friedrich}, title = {Extended hybrid meshing algorithm for multiresolution terrain models}, series = {International journal of geographical information science}, volume = {26}, journal = {International journal of geographical information science}, number = {5}, publisher = {Routledge, Taylor \& Francis Group}, address = {Abingdon}, issn = {1365-8816}, doi = {10.1080/13658816.2011.615317}, pages = {771 -- 793}, year = {2012}, abstract = {Hybrid terrains are a convenient approach for the representation of digital terrain models, integrating heterogeneous data from different sources. In this article, we present a general, efficient scheme for achieving interactive level-of-detail rendering of hybrid terrain models, without the need for a costly preprocessing or resampling of the original data. The presented method works with hybrid digital terrains combining regular grid data and local high-resolution triangulated irregular networks. Since grid and triangulated irregular network data may belong to different datasets, a straightforward combination of both geometries would lead to meshes with holes and overlapping triangles. Our method generates a single multiresolution model integrating the different parts in a coherent way, by performing an adaptive tessellation of the region between their boundaries. Hence, our solution is one of the few existing approaches for integrating different multiresolution algorithms within the same terrain model, achieving a simple interactive rendering of complex hybrid terrains.}, language = {en} } @article{SemmoTrappKyprianidisetal.2012, author = {Semmo, Amir and Trapp, Matthias and Kyprianidis, Jan Eric and D{\"o}llner, J{\"u}rgen Roland Friedrich}, title = {Interactive visualization of generalized virtual 3D city models using level-of-abstraction transitions}, series = {Computer graphics forum : journal of the European Association for Computer Graphics}, volume = {31}, journal = {Computer graphics forum : journal of the European Association for Computer Graphics}, number = {3}, publisher = {Wiley-Blackwell}, address = {Hoboken}, issn = {0167-7055}, doi = {10.1111/j.1467-8659.2012.03081.x}, pages = {885 -- 894}, year = {2012}, abstract = {Virtual 3D city models play an important role in the communication of complex geospatial information in a growing number of applications, such as urban planning, navigation, tourist information, and disaster management. In general, homogeneous graphic styles are used for visualization. For instance, photorealism is suitable for detailed presentations, and non-photorealism or abstract stylization is used to facilitate guidance of a viewer's gaze to prioritized information. However, to adapt visualization to different contexts and contents and to support saliency-guided visualization based on user interaction or dynamically changing thematic information, a combination of different graphic styles is necessary. Design and implementation of such combined graphic styles pose a number of challenges, specifically from the perspective of real-time 3D visualization. In this paper, the authors present a concept and an implementation of a system that enables different presentation styles, their seamless integration within a single view, and parametrized transitions between them, which are defined according to tasks, camera view, and image resolution. The paper outlines potential usage scenarios and application fields together with a performance evaluation of the implementation.}, language = {en} } @article{DorenkampBonaventuraSohnsetal.2012, author = {Dorenkamp, Marc and Bonaventura, Klaus and Sohns, Christian and Becker, Christoph R. and Leber, Alexander W.}, title = {Direct costs and cost-effectiveness of dual-source computed tomography and invasive coronary angiography in patients with an intermediate pretest likelihood for coronary artery disease}, series = {Heart}, volume = {98}, journal = {Heart}, number = {6}, publisher = {BMJ Publ. Group}, address = {London}, issn = {1355-6037}, doi = {10.1136/heartjnl-2011-300149}, pages = {460 -- 467}, year = {2012}, abstract = {Aims The study aims to determine the direct costs and comparative cost-effectiveness of latest-generation dual-source computed tomography (DSCT) and invasive coronary angiography for diagnosing coronary artery disease (CAD) in patients suspected of having this disease. Methods The study was based on a previously elaborated cohort with an intermediate pretest likelihood for CAD and on complementary clinical data. Cost calculations were based on a detailed analysis of direct costs, and generally accepted accounting principles were applied. Based on Bayes' theorem, a mathematical model was used to compare the cost-effectiveness of both diagnostic approaches. Total costs included direct costs, induced costs and costs of complications. Effectiveness was defined as the ability of a diagnostic test to accurately identify a patient with CAD. Results Direct costs amounted to (sic)98.60 for DSCT and to (sic)317.75 for invasive coronary angiography. Analysis of model calculations indicated that cost-effectiveness grew hyperbolically with increasing prevalence of CAD. Given the prevalence of CAD in the study cohort (24\%), DSCT was found to be more cost-effective than invasive coronary angiography ((sic)970 vs (sic)1354 for one patient correctly diagnosed as having CAD). At a disease prevalence of 49\%, DSCT and invasive angiography were equally effective with costs of (sic)633. Above a threshold value of disease prevalence of 55\%, proceeding directly to invasive coronary angiography was more cost-effective than DSCT. Conclusions With proper patient selection and consideration of disease prevalence, DSCT coronary angiography is cost-effective for diagnosing CAD in patients with an intermediate pretest likelihood for it. However, the range of eligible patients may be smaller than previously reported.}, language = {en} } @article{D'Aprile2012, author = {D'Aprile, Iwan-Michelangelo}, title = {Europe in the mirror of the world global historie in the German enlightenment}, isbn = {978-83-7842-018-7}, year = {2012}, language = {en} } @article{KoesslVossMoraetal.2012, author = {K{\"o}ssl, Manfred and Voss, Cornelia and Mora, Emanuel C. and Macias, Silvio and F{\"o}ller, Elisabeth and Vater, Marianne}, title = {Auditory cortex of newborn bats is prewired for echolocation}, series = {Nature Communications}, volume = {3}, journal = {Nature Communications}, number = {2}, publisher = {Nature Publ. Group}, address = {London}, issn = {2041-1723}, doi = {10.1038/ncomms1782}, pages = {7}, year = {2012}, abstract = {Neuronal computation of object distance from echo delay is an essential task that echolocating bats must master for spatial orientation and the capture of prey. In the dorsal auditory cortex of bats, neurons specifically respond to combinations of short frequency-modulated components of emitted call and delayed echo. These delay-tuned neurons are thought to serve in target range calculation. It is unknown whether neuronal correlates of active space perception are established by experience-dependent plasticity or by innate mechanisms. Here we demonstrate that in the first postnatal week, before onset of echolocation and flight, dorsal auditory cortex already contains functional circuits that calculate distance from the temporal separation of a simulated pulse and echo. This innate cortical implementation of a purely computational processing mechanism for sonar ranging should enhance survival of juvenile bats when they first engage in active echolocation behaviour and flight.}, language = {en} } @article{Eckstein2012, author = {Eckstein, Lars}, title = {Spiel mit der Angst : Britischer Hip Hop nach 9/11}, isbn = {978-3-8376-1728-3}, year = {2012}, language = {de} } @article{Eckstein2012, author = {Eckstein, Lars}, title = {Karibikreisen um 1800 im Ged{\"a}chtnis der Literatur}, isbn = {978-3-89975-272-4}, year = {2012}, language = {de} } @article{Eckstein2012, author = {Eckstein, Lars}, title = {"We're destroyed if we mix : and we're destroyed if we don't" : indigeneity in the modern world system and the politics of tricksterese in Pauline Melville's the ventriloquist's tale}, isbn = {978-3-938944- 60-8}, year = {2012}, language = {en} } @article{EcksteinSchwarz2012, author = {Eckstein, Lars and Schwarz, Anja}, title = {Oceanic modernity : indigeneity, globality and cultural translation}, isbn = {978-8-48-489670-8}, year = {2012}, language = {en} } @article{BatsiosPeterBaumannetal.2012, author = {Batsios, Petros and Peter, Tatjana and Baumann, Otto and Stick, Reimer and Meyer, Irene and Gr{\"a}f, Ralph}, title = {A lamin in lower eukaryotes?}, series = {Nucleus}, volume = {3}, journal = {Nucleus}, number = {3}, publisher = {Landes Bioscience}, address = {Austin}, issn = {1949-1034}, doi = {10.4161/nucl.20149}, pages = {237 -- 243}, year = {2012}, abstract = {Lamins are the major components of the nuclear lamina and serve not only as a mechanical support, but are also involved in chromatin organization, epigenetic regulation, transcription and mitotic events. Despite these universal tasks, lamins have so far been found only in metazoans. Yet, recently we have identified Dictyostelium NE81 as the first lamin-like protein in a lower eukaryote. Based on the current knowledge, we draw a model for nuclear envelope organization in Dictyostelium in this Extra View and we review the experimental data that justified this classification. Furthermore we provide unpublished data underscoring the requirement of posttranslational CaaX-box processing for proper protein localization at the nuclear envelope. Sequence comparison of NE81 sequences from four Dictyostelia with bona fide lamins illustrates the evolutional relationship between these proteins. Under certain conditions these usually unicellular social amoebae congregate to form a multicellular body. We propose that the evolution of the lamin-like NE81 went along with the invention of multicellularity.}, language = {en} } @article{RuizHassReich2012, author = {Ruiz, Salome Vargas and Hass, Roland and Reich, Oliver}, title = {Optical monitoring of milk fat phase transition within homogenized fresh milk by Photon Density Wave spectroscopy}, series = {International dairy journal}, volume = {26}, journal = {International dairy journal}, number = {2}, publisher = {Elsevier}, address = {Oxford}, issn = {0958-6946}, doi = {10.1016/j.idairyj.2012.03.012}, pages = {120 -- 126}, year = {2012}, abstract = {Photon Density Wave (PDW) spectroscopy was applied for temperature dependent monitoring of melting and crystallization of milk fat within homogenized fresh milk. As an in-line process analytical technique, PDW spectroscopy quantifies continuously the optical properties of turbid material, providing an insight into its structural processes. Here, the measured absorption coefficients reflect temperature as well as fat content of milk and the reduced scattering coefficients probe physical changes of the light scattering fat droplets and casein micelles. Thermal processing reveals breakpoints within the temperature trend of the reduced scattering coefficient of fat containing milk. Found at 16 degrees C and 24 degrees C while cooling and heating, respectively, they are associated to the phase transitions of milk fat. Continuous isothermal measurement of the optical coefficients showed that the crystallization process requires several hours. The strongly changing reduced scattering coefficient implies that the thermal history of milk will have a major impact on any method based on light scattering as quantitative analytical technique.}, language = {en} } @article{KuhnertBaumannMeyeretal.2012, author = {Kuhnert, Oliver and Baumann, Otto and Meyer, Irene and Gr{\"a}f, Ralph}, title = {CP55, a novel key component of centrosomal organization in dictyostelium}, series = {Cellular and molecular life sciences}, volume = {69}, journal = {Cellular and molecular life sciences}, number = {21}, publisher = {Springer}, address = {Basel}, issn = {1420-682X}, doi = {10.1007/s00018-012-1040-3}, pages = {3651 -- 3664}, year = {2012}, abstract = {Dictyostelium centrosomes consist of a layered core structure surrounded by a microtubule-nucleating corona. At the G2/M transition, the corona dissociates and the core structure duplicates, yielding two spindle pole bodies. Finally, in telophase, the spindle poles mature into two new, complete centrosomes. CP55 was identified in a centrosomal proteome analysis. It is a component of the centrosomal core structure, and persists at the centrosome throughout the entire cell cycle. FRAP experiments revealed that during interphase the majority of centrosomal GFP-CP55 is immobile, which indicates a structural task of CP55 at the centrosome. The CP55null mutant is characterized by increased ploidy, a less structured, slightly enlarged corona, and by supernumerary, cytosolic MTOCs, containing only corona proteins and lacking a core structure. Live cell imaging showed that supernumerary MTOCs arise in telophase. Lack of CP55 also caused premature recruitment of the corona organizer CP148 to mitotic spindle poles, already in metaphase instead of telophase. Forces transmitted through astral microtubules may expel prematurely acquired or loosely attached corona fragments into the cytosol, where they act as independent MTOCs. CP55null cells were also impaired in growth, most probably due to difficulties in centrosome splitting during prophase. Furthermore, although they were still capable of phagocytosis, they appeared unable to utilize phagocytosed nutrients. This inability may be attributed to their partially disorganized Golgi apparatus.}, language = {en} } @article{KuhnertBaumannMeyeretal.2012, author = {Kuhnert, Oliver and Baumann, Otto and Meyer, Irene and Gr{\"a}f, Ralph}, title = {Functional characterization of CP148, a novel key component for centrosome integrity in Dictyostelium}, series = {Cellular and molecular life sciences}, volume = {69}, journal = {Cellular and molecular life sciences}, number = {11}, publisher = {Springer}, address = {Basel}, issn = {1420-682X}, doi = {10.1007/s00018-011-0904-2}, pages = {1875 -- 1888}, year = {2012}, abstract = {The centrosome consists of a layered core structure surrounded by a microtubule-nucleating corona. A tight linkage through the nuclear envelope connects the cytosolic centrosome with the clustered centromeres within the nuclear matrix. At G2/M the corona dissociates, and the core structure duplicates, yielding two spindle poles. CP148 is a novel coiled coil protein of the centrosomal corona. GFP-CP148 exhibited cell cycle-dependent presence and absence at the centrosome, which correlates with dissociation of the corona in prophase and its reformation in late telophase. During telophase, GFP-CP148 formed cytosolic foci, which coalesced and joined the centrosome. This explains the hypertrophic appearance of the corona upon strong overexpression of GFP-CP148. Depletion of CP148 by RNAi caused virtual loss of the corona and disorganization of interphase microtubules. Surprisingly, formation of the mitotic spindle and astral microtubules was unaffected. Thus, microtubule nucleation complexes associate with centrosomal core components through different means during interphase and mitosis. Furthermore, CP148 RNAi caused dispersal of centromeres and altered Sun1 distribution at the nuclear envelope, suggesting a role of CP148 in the linkage between centrosomes and centromeres. Taken together, CP148 is an essential factor for the formation of the centrosomal corona, which in turn is required for centrosome/centromere linkage.}, language = {en} } @article{KruegerBatsiosBaumannetal.2012, author = {Kr{\"u}ger, Anne and Batsios, Petros and Baumann, Otto and Luckert, Eva and Schwarz, Heinz and Stick, Reimer and Meyer, Irene and Gr{\"a}f, Ralph}, title = {Characterization of NE81, the first lamin-like nucleoskeleton protein in a unicellular organism}, series = {Molecular biology of the cell : the official publication of the American Society for Cell Biology}, volume = {23}, journal = {Molecular biology of the cell : the official publication of the American Society for Cell Biology}, number = {2}, publisher = {American Society for Cell Biology}, address = {Bethesda}, issn = {1059-1524}, doi = {10.1091/mbc.E11-07-0595}, pages = {360 -- 370}, year = {2012}, abstract = {Lamins build the nuclear lamina and are required for chromatin organization, gene expression, cell cycle progression, and mechanical stabilization. Despite these universal functions, lamins have so far been found only in metazoans. We have identified protein NE81 in Dictyostelium, which has properties that justify its denomination as a lamin-like protein in a lower eukaryote. This is based on its primary structure, subcellular localization, and regulation during mitosis, and its requirement of the C-terminal CaaX box as a posttranslational processing signal for proper localization. Our knockout and overexpression mutants revealed an important role for NE81 in nuclear integrity, chromatin organization, and mechanical stability of cells. All our results are in agreement with a role for NE81 in formation of a nuclear lamina. This function is corroborated by localization of Dictyostelium NE81 at the nuclear envelope in human cells. The discovery of a lamin-like protein in a unicellular organism is not only intriguing in light of evolution, it may also provide a simple experimental platform for studies of the molecular basis of laminopathies.}, language = {en} } @article{LuethNeuberKleuser2012, author = {L{\"u}th, Anja and Neuber, Corinna and Kleuser, Burkhard}, title = {Novel methods for the quantification of (2E)-hexadecenal by liquid chromatography with detection by either ESI QTOF tandem mass spectrometry or fluorescence measurement}, series = {Analytica chimica acta : an international journal devoted to all branches of analytical chemistry}, volume = {722}, journal = {Analytica chimica acta : an international journal devoted to all branches of analytical chemistry}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0003-2670}, doi = {10.1016/j.aca.2012.01.063}, pages = {70 -- 79}, year = {2012}, abstract = {Sphingosine-1-phosphate lyase (SPL) is the only known enzyme that irreversibly cleaves sphingosine-1-phosphate (S1P) into phosphoethanolamine and (2E)-hexadecenal during the final step of sphingolipid catabolism. Because S1P is involved in a wide range of physiological and diseased processes, determining the activity of the degrading enzyme is of great interest. Therefore, we developed two procedures based on liquid chromatography (LC) for analysing (2E)-hexadecenal, which is one of the two S1P degradation products. After separation, two different quantification methods were performed, tandem mass spectrometry (MS) and fluorescence detection. However, (2E)-hexadecenal as a long-chain aldehyde is not ionisable by electrospray ionisation (ESI) for MS quantification and has an insufficient number of corresponding double bonds for fluorescence detection. Therefore, we investigated 2-diphenylacetyl-1,3-indandione-1-hydrazone (DAIH) as a derivatisation reagent. DAIH transforms the aldehyde into an ionisable and fluorescent analogue for quantitative analysis. Our conditions were optimised to obtain the outstanding limit of detection (LOD) of 1 fmol per sample (30 mu L) for LC-MS/MS and 0.75 pmol per sample (200 mu l) for LC determination with fluorescence detection. We developed an extraction procedure to separate and concentrate (2E)-hexadecenal from biological samples for these measurements. To confirm our new methods, we analysed the (2E)-hexadecenal level of different cell lines and human plasma for the first time ever. Furthermore, we treated HT-29 cells with different concentrations of 4-deoxypyridoxine (DOP), which competitively inhibits pyridoxal-5-phosphate (P5P), an essential cofactor for SPL activity, and observed a significant decrease in (2E)-hexadecenal relative to the untreated cells.}, language = {en} } @article{Apelojg2012, author = {Apelojg, Benjamin}, title = {Recruiting - Lass den Bauch sprechen}, series = {Personalwirtschaft : Magazin f{\"u}r Human Resources}, volume = {39}, journal = {Personalwirtschaft : Magazin f{\"u}r Human Resources}, number = {5}, publisher = {F.A.Z.Buisness Media}, address = {Frankfurt am Main}, issn = {0341-4698}, pages = {59 -- 62}, year = {2012}, abstract = {Personal auszuw{\"a}hlen ist eine verantwortungsvolle Aufgabe. Dabei ist es eigentlich ganz einfach: Bei der Entscheidung lohnt es sich, seinen Gef{\"u}hlen zu vertrauen.}, language = {de} } @article{FrascaRojasSalewskietal.2012, author = {Frasca, Stefano and Rojas, Oscar and Salewski, Johannes and Neumann, Bettina and Stiba, Konstanze and Weidinger, Inez M. and Tiersch, Brigitte and Leimk{\"u}hler, Silke and Koetz, Joachim and Wollenberger, Ursula}, title = {Human sulfite oxidase electrochemistry on gold nanoparticles modified electrode}, series = {Bioelectrochemistry : an international journal devoted to electrochemical aspects of biology and biological aspects of electrochemistry ; official journal of the Bioelectrochemical Society}, volume = {87}, journal = {Bioelectrochemistry : an international journal devoted to electrochemical aspects of biology and biological aspects of electrochemistry ; official journal of the Bioelectrochemical Society}, publisher = {Elsevier}, address = {Lausanne}, issn = {1567-5394}, doi = {10.1016/j.bioelechem.2011.11.012}, pages = {33 -- 41}, year = {2012}, abstract = {The present study reports a facile approach for sulfite biosensing, based on enhanced direct electron transfer of a human sulfite oxidase (hSO) immobilized on a gold nanoparticles modified electrode. The spherical core shell AuNPs were prepared via a new method by reduction of HAuCl4 with branched poly(ethyleneimine) in an ionic liquids resulting particles with a diameter less than 10 nm. These nanoparticles were covalently attached to a mercaptoundecanoic acid modified Au-electrode where then hSO was adsorbed and an enhanced interfacial electron transfer and electrocatalysis was achieved. UV/Vis and resonance Raman spectroscopy, in combination with direct protein voltammetry, are employed for the characterization of the system and reveal no perturbation of the structural integrity of the redox protein. The proposed biosensor exhibited a quick steady-state current response, within 2 s, a linear detection range between 0.5 and 5.4 mu M with a high sensitivity (1.85 nA mu M-1). The investigated system provides remarkable advantages in the possibility to work at low applied potential and at very high ionic strength. Therefore these properties could make the proposed system useful in the development of bioelectronic devices and its application in real samples.}, language = {en} } @article{WoehlBruhnBadarBertzetal.2012, author = {W{\"o}hl-Bruhn, Stefanie and Badar, Muhammad and Bertz, Andreas and Tiersch, Brigitte and Koetz, Joachim and Menzel, Henning and M{\"u}ller, Peter P. and Bunjes, Heike}, title = {Comparison of in vitro and in vivo protein release from hydrogel systems}, series = {Journal of controlled release}, volume = {162}, journal = {Journal of controlled release}, number = {1}, publisher = {Elsevier}, address = {Amsterdam}, issn = {0168-3659}, doi = {10.1016/j.jconrel.2012.05.049}, pages = {127 -- 133}, year = {2012}, abstract = {Hydrogel systems based on hydroxyethyl starch-polyethylene glycol methacrylate (HES-P(EG)(6)MA) or hydroxyethyl starch methacrylate (HES-MA) were used to assess the protein release behavior. Here, we analyzed the in vitro release of FITC-anti-human antibodies incorporated in either HES-P(EG)(6)MA or HES-MA hydrogel delivery systems in PBS or human serum. In addition, hydrogel disks and microparticles prepared from the two polymers were subcutaneously implanted in BALB/c mice. The in vivo release of FITC-IgG was non-invasively monitored by an in vivo imaging system (IVIS 200) over a time period of up to 3 months. The imaging system allowed to asses individual animals over time, therefore only a small number of animals was required to obtain high quality data. The reduction in fluorescence intensity at the site of administration was compared to in vitro release profiles. These investigations demonstrated a sustained release from HES-MA hydrogel disks compared to rapidly degrading HES-P(EG)(6)MA disks and microparticles. The sustained release from HES-MA disks could be further optimized by using increased polymer concentrations. Human serum as in vitro release medium reflected better the in vivo release from HES-P(EG)(6)MA systems than PBS, suggesting that the presence of organic substances like proteins or lipids may play a significant role for the release kinetics.}, language = {en} } @article{KoethTierschAppelhansetal.2012, author = {Koeth, Anja and Tiersch, Brigitte and Appelhans, Dietmar and Gradzielski, Michael and C{\"o}lfen, Helmut and Koetz, Joachim}, title = {Synthesis of Core-Shell Gold Nanoparticles with Maltose-Modified Poly(Ethyleneimine)}, series = {Journal of dispersion science and technology}, volume = {33}, journal = {Journal of dispersion science and technology}, number = {1-3}, publisher = {Taylor \& Francis Group}, address = {Philadelphia}, issn = {0193-2691}, doi = {10.1080/01932691.2010.530084}, pages = {52 -- 60}, year = {2012}, abstract = {The synthesis of ultrafine gold nanoparticles in presence of maltose-modified hyperbranched poly(ethyleneimines) (PEI) is described. The polymer acted as both a reducing and stabilising agent in the particle formation process. The nanoparticles were characterized by means of dynamic light scattering (DLS), transmission electron microscopy (TEM), analytical ultracentrifugation (AUC), small-angle x-ray scattering (SAXS), and small-angle neutron scattering (SANS). The mechanism of nanoparticle formation can be described in two steps. The reduction process of the Au3+ ions located in the inner coil region of the hyperbranched PEI led to the formation of a compact gold core, and is accompanied by a collapse of the polymer coil. Therefore, in the subsequent reduction process a gold-polymer hybrid shell is formed. By using the PEI of higher molar mass, core-shell gold nanoparticles of about 3.6 nm size with a more narrow size distribution and special fluorescence behavior could be synthesized.}, language = {en} } @article{HenkelFredeSchanzeetal.2012, author = {Henkel, Janin and Frede, Katja and Schanze, Nancy and Vogel, Heike and Sch{\"u}rmann, Annette and Spruß, Astrid and Bergheim, Ina and P{\"u}schel, Gerhard Paul}, title = {Stimulation of fat accumulation in hepatocytes by PGE(2)-dependent repression of hepatic lipolysis, beta-oxidation and VLDL-synthesis}, series = {Laboratory investigation : the basic and translational pathology research journal ; an official journal of the United States and Canadian Academy of Pathology}, volume = {92}, journal = {Laboratory investigation : the basic and translational pathology research journal ; an official journal of the United States and Canadian Academy of Pathology}, number = {11}, publisher = {Nature Publ. Group}, address = {New York}, issn = {0023-6837}, doi = {10.1038/labinvest.2012.128}, pages = {1597 -- 1606}, year = {2012}, abstract = {Hepatic steatosis is recognized as hepatic presentation of the metabolic syndrome. Hyperinsulinaemia, which shifts fatty acid oxidation to de novo lipogenesis and lipid storage in the liver, appears to be a principal elicitor particularly in the early stages of disease development. The impact of PGE(2), which has previously been shown to attenuate insulin signaling and hence might reduce insulin-dependent lipid accumulation, on insulin-induced steatosis of hepatocytes was studied. The PGE(2)-generating capacity was enhanced in various obese mouse models by the induction of cyclooxygenase 2 and microsomal prostaglandin E-synthases (mPGES1, mPGES2). PGE(2) attenuated the insulin-dependent induction of SREBP-1c and its target genes glucokinase and fatty acid synthase. Nevertheless, PGE(2) enhanced incorporation of glucose into hepatic triglycerides synergistically with insulin. This was most likely due to a combination of a PGE(2)-dependent repression of (1) the key lipolytic enzyme adipose triglyceride lipase, (2) carnitine-palmitoyltransferase 1, a key regulator of mitochondrial beta-oxidation, and (3) microsomal transfer protein, as well as (4) apolipoprotein B, key components of the VLDL synthesis. Repression of PGC1 alpha, a common upstream regulator of these genes, was identified as a possible cause. In support of this hypothesis, overexpression of PGC1 alpha completely blunted the PGE(2)-dependent fat accumulation. PGE(2) enhanced lipid accumulation synergistically with insulin, despite attenuating insulin signaling and might thus contribute to the development of hepatic steatosis. Induction of enzymes involved in PGE(2) synthesis in in vivo models of obesity imply a potential role of prostanoids in the development of NAFLD and NASH. Laboratory Investigation (2012) 92, 1597-1606; doi:10.1038/labinvest.2012.128; published online 10 September 2012}, language = {en} } @article{HesseJaschkeKanzleiteretal.2012, author = {Hesse, Deike and Jaschke, Alexander and Kanzleiter, Timo and Witte, Nicole and Augustin, Robert and Hommel, Angela and P{\"u}schel, Gerhard Paul and Petzke, Klaus-J{\"u}rgen and Joost, Hans-Georg and Schupp, Michael and Sch{\"u}rmann, Annette}, title = {GTPase ARFRP1 is essential for normal hepatic glycogen storage and insulin-like growth factor 1 secretion}, series = {Molecular and cellular biology}, volume = {32}, journal = {Molecular and cellular biology}, number = {21}, publisher = {American Society for Microbiology}, address = {Washington}, issn = {0270-7306}, doi = {10.1128/MCB.00522-12}, pages = {4363 -- 4374}, year = {2012}, abstract = {The GTPase ADP-ribosylation factor-related protein 1 (ARFRP1) is located at the trans-Golgi compartment and regulates the recruitment of Arf-like 1 (ARL1) and its effector golgin-245 to this compartment. Here, we show that liver-specific knockout of Arfrp1 in the mouse (Arfrp1(liv-/-)) resulted in early growth retardation, which was associated with reduced hepatic insulin-like growth factor 1 (IGF1) secretion. Accordingly, suppression of Arfrp1 in primary hepatocytes resulted in a significant reduction of IGF1 release. However, the hepatic secretion of IGF-binding protein 2 (IGFBP2) was not affected in the absence of ARFRP1. In addition, Arfrp1(liv-/-) mice exhibited decreased glucose transport into the liver, leading to a 50\% reduction of glycogen stores as well as a marked retardation of glycogen storage after fasting and refeeding. These abnormalities in glucose metabolism were attributable to reduced protein levels and intracellular retention of the glucose transporter GLUT2 in Arfrp1(liv-/-) livers. As a consequence of impaired glucose uptake into the liver, the expression levels of carbohydrate response element binding protein (ChREBP), a transcription factor regulated by glucose concentration, and its target genes (glucokinase and pyruvate kinase) were markedly reduced. Our data indicate that ARFRP1 in the liver is involved in the regulation of IGF1 secretion and GLUT2 sorting and is thereby essential for normal growth and glycogen storage.}, language = {en} } @article{SprussHenkelKanurietal.2012, author = {Spruss, Astrid and Henkel, Janin and Kanuri, Giridhar and Blank, Daniela and P{\"u}schel, Gerhard Paul and Bischoff, Stephan C. and Bergheim, Ina}, title = {Female mice are more susceptible to nonalcoholic fatty liver disease sex-specific regulation of the hepatic AMP-Activated protein Kinase-Plasminogen activator inhibitor 1 cascade, but not the hepatic endotoxin response}, series = {Molecular medicine}, volume = {18}, journal = {Molecular medicine}, number = {9}, publisher = {Feinstein Inst. for Medical Research}, address = {Manhasset}, issn = {1076-1551}, doi = {10.2119/molmed.2012.00223}, pages = {1346 -- 1355}, year = {2012}, abstract = {As significant differences between sexes were found in the susceptibility to alcoholic liver disease in human and animal models, it was the aim of the present study to investigate whether female mice also are more susceptible to the development of nonalcoholic fatty liver disease (NAFLD). Male and female C57BL/6J mice were fed either water or 30\% fructose solution ad libitum for 16 wks. Liver damage was evaluated by histological scoring. Portal endotoxin levels and markers of Kupffer cell activation and insulin resistance, plasminogen activator inhibitor 1 (PAI-1) and phosphorylated adenosine monophosphate-activated protein kinase (pAMPK) were measured in the liver. Adiponectin mRNA expression was determined in adipose tissue. Hepatic steatosis was almost similar between male and female mice; however, inflammation was markedly more pronounced in livers of female mice. Portal endotoxin levels, hepatic levels of myeloid differentiation primary response gene (88) (MyD88) protein and of 4-hydroxynonenal protein adducts were elevated in animals with NAFLD regardless of sex. Expression of insulin receptor substrate 1 and 2 was decreased to a similar extent in livers of male and female mice with NAFLD. The less pronounced susceptibility to liver damage in male mice was associated with a superinduction of hepatic pAMPK in these mice whereas, in livers of female mice with NAFLD, PAI-1 was markedly induced. Expression of adiponectin in visceral fat was significantly lower in female mice with NAFLD but unchanged in male mice compared with respective controls. In conclusion, our data suggest that the sex-specific differences in the susceptibility to NAFLD are associated with differences in the regulation of the adiponectin-AMPK-PAI-1 signaling cascade. Online address: http://www.molmed.Org doi: 10.2119/molmed.2012.00223}, language = {en} } @article{MeyerWituckaWallBecheretal.2012, author = {Meyer, Rhonda C. and Witucka-Wall, Hanna and Becher, Martina and Blacha, Anna Maria and Boudichevskaia, Anastassia and D{\"o}rmann, Peter and Fiehn, Oliver and Friedel, Svetlana and von Korff, Maria and Lisec, Jan and Melzer, Michael and Repsilber, Dirk and Schmidt, Renate and Scholz, Matthias and Selbig, Joachim and Willmitzer, Lothar and Altmann, Thomas}, title = {Heterosis manifestation during early Arabidopsis seedling development is characterized by intermediate gene expression and enhanced metabolic activity in the hybrids}, series = {The plant journal}, volume = {71}, journal = {The plant journal}, number = {4}, publisher = {Wiley-Blackwell}, address = {Hoboken}, issn = {0960-7412}, doi = {10.1111/j.1365-313X.2012.05021.x}, pages = {669 -- 683}, year = {2012}, abstract = {Heterosis-associated cellular and molecular processes were analyzed in seeds and seedlings of Arabidopsis thaliana accessions Col-0 and C24 and their heterotic hybrids. Microscopic examination revealed no advantages in terms of hybrid mature embryo organ sizes or cell numbers. Increased cotyledon sizes were detectable 4 days after sowing. Growth heterosis results from elevated cell sizes and numbers, and is well established at 10 days after sowing. The relative growth rates of hybrid seedlings were most enhanced between 3 and 4 days after sowing. Global metabolite profiling and targeted fatty acid analysis revealed maternal inheritance patterns for a large proportion of metabolites in the very early stages. During developmental progression, the distribution shifts to dominant, intermediate and heterotic patterns, with most changes occurring between 4 and 6 days after sowing. The highest incidence of heterotic patterns coincides with establishment of size differences at 4 days after sowing. In contrast, overall transcript patterns at 4, 6 and 10 days after sowing are characterized by intermediate to dominant patterns, with parental transcript levels showing the largest differences. Overall, the results suggest that, during early developmental stages, intermediate gene expression and higher metabolic activity in the hybrids compared to the parents lead to better resource efficiency, and therefore enhanced performance in the hybrids.}, language = {en} } @article{Askin2012, author = {Askin, Elif}, title = {Ein Menschenrecht auf Staatsangeh{\"o}rigkeit?}, series = {MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen}, volume = {17}, journal = {MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen}, number = {2}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1434-2820}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-63875}, pages = {182 -- 195}, year = {2012}, abstract = {Inhalt: I. Einleitung und Problemstellung II. Der Erwerb einer Staatsangeh{\"o}rigkeit durch Einb{\"u}rgerung III. Extraterritoriale Kollektiveinb{\"u}rgerungen IV. Aktuelle Einb{\"u}rgerungspraxis in Mittel- und Osteuropa V. Die Beurteilung extraterritorialer Kollektiveinb{\"u}rgerungen anhand v{\"o}lker- und menschenrechtlicher Normen und Prinzipien VI. Anwendung der Prinzipien auf die Einb{\"u}rgerungspraxis der mittel- und osteurop{\"a}ischen Staaten VII. Schlussfolgerung}, language = {de} } @article{Krause2012, author = {Krause, Uwe}, title = {Videos related to the maps}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65745}, pages = {11 -- 12}, year = {2012}, language = {en} } @article{Birk2012, author = {Birk, Eberhard}, title = {Die Lineartaktik im Spiegel zeitgen{\"o}ssischer Ordnungsvorstellungen}, series = {Milit{\"a}r und Gesellschaft in der fr{\"u}hen Neuzeit}, volume = {16}, journal = {Milit{\"a}r und Gesellschaft in der fr{\"u}hen Neuzeit}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-9722}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62166}, pages = {7 -- 40}, year = {2012}, abstract = {I. Hinf{\"u}hrung II. F{\"u}rstliche necessitas als ordnungspolitischer Anspruch III. Kriegsbild des Absolutismus IV. Der philosophisch-mathematische Aspekt VI. Fazit}, language = {de} } @article{AkpniarMaasRooth2012, author = {Akpniar, Seda and Maas, Desiree and Rooth, Anneke}, title = {Deepening Understanding}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65859}, pages = {81 -- 85}, year = {2012}, abstract = {1. Background information 2. Explanations during the lessons 3. Deepening under standing in some assignments 4. Conclusion}, language = {en} } @article{Schroeder2012, author = {Schr{\"o}der, Miriam}, title = {China und Indien}, series = {Klimapolitik International}, journal = {Klimapolitik International}, editor = {Kleinw{\"a}chter, Kai}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1868-6222}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-81311}, pages = {41 -- 49}, year = {2012}, abstract = {Der Artikel analysiert die neue Rolle aufsteigender Schwellenl{\"a}nder in den internationalen Klimaverhandlungen am Beispiel Chinas und Indiens. Die Ablehnung verbindlicher Reduktionsziele f{\"u}r Treibhausgase wurde in Kopenhagen als Blockadepolitik beider L{\"a}nder gewertet. China und Indien k{\"o}nnen sich in ihrer Position behaupten, da ihr gestiegenes Gewicht in der multipolaren Weltordnung und die Unt{\"a}tigkeit f{\"u}hrender Industriel{\"a}nder ihre Verhandlungsposition st{\"a}rkt. Die Autorin diskutiert Kooperationsm{\"o}glichkeiten auf subnationaler Ebene, die die Blockadeposition nationaler Regierungen umgehen k{\"o}nnen.}, language = {de} } @article{Suess2012, author = {S{\"u}ß, Karsten}, title = {Holger Th. Gr{\"a}f, Lena Haunert (Hrsg.), Unter Canadiensern, Irokesen und Rebellen.}, series = {Milit{\"a}r und Gesellschaft in der fr{\"u}hen Neuzeit}, volume = {16}, journal = {Milit{\"a}r und Gesellschaft in der fr{\"u}hen Neuzeit}, number = {2}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-9722}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-63783}, pages = {276 -- 278}, year = {2012}, language = {de} } @article{StadieSchroeder2012, author = {Stadie, Nicole and Schr{\"o}der, Astrid}, title = {Forschungsbasiertes Vorgehen im klinischen Alltag : Werkzeuge f{\"u}r die Planung, Durchf{\"u}hrung und Evaluation von Sprachtherapie}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62529}, year = {2012}, abstract = {1 Einleitung 2 Hintergrund 3 Ziel 4 Methode: Protokollb{\"o}gen 5 Ausblick 6 Literatur}, language = {de} } @article{ThierbachFlorianWolfrumetal.2012, author = {Thierbach, Rene and Florian, Simone and Wolfrum, Katharina and Voigt, Anja and Drewes, Gunnar and Blume, Urte and Bannasch, Peter and Ristow, Michael and Steinberg, Pablo}, title = {Specific alterations of carbohydrate metabolism are associated with hepatocarcinogenesis in mitochondrially impaired mice}, series = {Human molecular genetics}, volume = {21}, journal = {Human molecular genetics}, number = {3}, publisher = {Oxford Univ. Press}, address = {Oxford}, issn = {0964-6906}, doi = {10.1093/hmg/ddr499}, pages = {656 -- 663}, year = {2012}, abstract = {Friedreich's ataxia is an inherited neurodegenerative disease caused by the reduced expression of the mitochondrially active protein frataxin. We have previously shown that mice with a hepatocyte-specific frataxin knockout (AlbFxn(-/-)) develop multiple hepatic tumors in later life. In the present study, hepatic carbohydrate metabolism in AlbFxn(-/-) mice at an early and late life stage was analyzed. In young (5-week-old) AlbFxn(-/-) mice hepatic ATP, glucose-6-phosphate and glycogen levels were found to be reduced by similar to 74, 80 and 88\%, respectively, when compared with control animals. This pronounced ATP, G6P and glycogen depletion in the livers of young mice reverted in older animals: while half of the mice die before 30 weeks of age, the other half reaches 17 months of age and exhibits glycogen, G6P and ATP levels similar to those in age-matched controls. A key event in this respect seems to be the up-regulation of GLUT1, the predominant glucose transporter in fetal liver parenchyma, which became evident in AlbFxn(-/-) mice being 5-12 weeks of age. The most significant histological findings in animals being 17 or 22 months of age were the appearance of multiple clear cell, mixed cell and basophilic foci throughout the liver parenchyma as well as the development of hepatocellular adenomas and carcinomas. The hepatocarcinogenic process in AlbFxn 2/2 mice shows remarkable differences regarding carbohydrate metabolism alterations when compared with all other chemically and virally driven liver cancer models described up to now.}, language = {en} } @article{LauterbachRistowGemeinholzer2012, author = {Lauterbach, Daniel and Ristow, Michael and Gemeinholzer, Birgit}, title = {Population genetics and fitness in fragmented populations of the dioecious and endangered Silene otites (Caryophyllaceae)}, series = {Plant systematics and evolution}, volume = {298}, journal = {Plant systematics and evolution}, number = {1}, publisher = {Springer}, address = {Wien}, issn = {0378-2697}, doi = {10.1007/s00606-011-0533-0}, pages = {155 -- 164}, year = {2012}, abstract = {Population fragmentation is often correlated with loss of genetic diversity and reduced fitness. Obligate out-crossing (dioecy) is expected to enhance genetic diversity, reduce genetic differentiation, and avoid inbreeding depression through frequent gene flow. However, in highly fragmented populations dioecy has only diminishing effects upon genetic structure as pollination limitations (e.g. flight distance of pollinators) most often restrict inter-population gene flow in insect pollinated species. In fragmented dry grasslands in northeastern Germany, we analysed genetic structure, fitness, and habitat quality of the endangered dioecious Silene otites (Caryophyllaceae). Using AFLP markers, a high level of differentiation among ten populations was found (F (st) = 0.36), while the intra-population genetic diversities (H (E) = 0.165-0.240) were similar as compared to hermaphroditic species. There was neither a correlation between geographic and genetic distance nor between genetic diversity and population size, which indicates reduced gene flow among populations and random genetic drift. Plant size was positively correlated with genetic diversity. Seed set and number of juveniles were positively related to population size. Higher total coverage resulted in reduced plant fitness, and the number of juveniles was negatively correlated to cryptogam cover. Additionally, we found a sex ratio bias towards more male plants in larger populations. Overall, our results indicate that on a regional geographic scale dioecy does not necessarily prevent genetic erosion in the case of habitat fragmentation, especially in the absence of long distance seed and pollen dispersal capacity.}, language = {en} } @article{GemeinholzerMayRistowetal.2012, author = {Gemeinholzer, B. and May, F. and Ristow, Michael and Batsch, C. and Lauterbach, D.}, title = {Strong genetic differentiation on a fragmentation gradient among populations of the heterocarpic annual Catananche lutea L. (Asteraceae)}, series = {Plant systematics and evolution}, volume = {298}, journal = {Plant systematics and evolution}, number = {8}, publisher = {Springer}, address = {Wien}, issn = {0378-2697}, doi = {10.1007/s00606-012-0661-1}, pages = {1585 -- 1596}, year = {2012}, abstract = {In landscapes which are predominately characterised by agriculture, natural ecosystems are often reduced to a mosaic of scattered patches of natural vegetation. Species with formerly connected distribution ranges now have restricted gene flow among populations. This has isolating effects upon population structure, because species are often confined by their limited dispersal capabilities. In this study, we test the effects of habitat fragmentation, precipitation, and isolation of populations on the genetic structure (AFLP) and fitness of the Asteraceae Catananche lutea. Our study area is an agro-dominated ecosystem in the desert-Mediterranean transition zone of the Southern Judea Lowlands in Israel. Our analysis revealed an intermediate level of intra-population genetic diversity across the study site with reduced genetic diversity on smaller scale. Although the size of the whole study area was relatively small (20 x 45 km), we found isolation by distance to be effective. We detected a high level of genetic differentiation among populations but genetic structure did not reflect spatial patterns. Population genetic diversity was correlated neither with position along the precipitation gradient nor with different seed types or other plant fitness variables in C. lutea.}, language = {en} } @article{HerzbergSintomerKlegeretal.2012, author = {Herzberg, Carsten and Sintomer, Yves and Kleger, Heinz and Neunecker, Martina}, title = {Einleitung : von Porto Alegre nach Europa}, isbn = {978-3-593-39771-9}, year = {2012}, language = {de} } @article{KlegerKuehnStab2012, author = {Kleger, Heinz and K{\"u}hn, Martin and Stab, Uwe}, title = {B{\"u}rgerschaft - B{\"u}rgerkommune - B{\"u}rgerhaushalt}, isbn = {978-3-593-39771-9}, year = {2012}, language = {de} } @article{Kleger2012, author = {Kleger, Heinz}, title = {Vom B{\"u}rgerprotest zum B{\"u}rgerhaushalt}, isbn = {978-3-593-39771-9}, year = {2012}, language = {de} } @article{BlahušiakovaRoeperKuehnemannStaufenbieletal.2012, author = {Blahušiakov{\´a}, Andrea and R{\"o}per-K{\"u}hnemann, Christian and Staufenbiel, Christoph and Voz{\´a}rov{\´a}, Hana}, title = {Relating to students}, series = {Potsdamer geographische Praxis}, journal = {Potsdamer geographische Praxis}, number = {1}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {2194-1599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-65769}, pages = {25 -- 31}, year = {2012}, abstract = {1. The Assignment 'Devotion to Religion and acitive Citizenship' 2. The Assignment 'How are religious spread across Europe' 3. The Assignment 'Is football as important as religion?' 4. The Assignment 'Why be religious?' 5. The Assignment 'Lucky charms' 6. The Assignment 'No Creo en el Jamas' (Life after death) 7. The Assignment 'Religion and its influence on politics ans policies' 8. The Assignment 'Secularisation in Europe' 9. The Assignment 'The meaning of religious places' 10. The Assignment 'Unity in diversity' 11. Which conceptions did you find?}, language = {en} } @article{Geschonke2012, author = {Geschonke, Sebastian}, title = {Zukunftsf{\"a}higkeit durch Nachhaltigkeit}, series = {Perspektiven f{\"u}r morgen : Gedanken zur Zukunft von Politik, Wirtschaft und Gesellschaft}, journal = {Perspektiven f{\"u}r morgen : Gedanken zur Zukunft von Politik, Wirtschaft und Gesellschaft}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-60553}, pages = {22 -- 40}, year = {2012}, abstract = {Inhalt: - Verschiedene Dimensionen der Nachhaltigkeit - Das Gemeinsame der verschiedenen Dimensionen - Das Streben nach einem besseren Verst{\"a}ndnis der Welt - Nachhaltigkeit - Ein allgemeines Modell der Nachhaltigkeit: Das »Existenzraum-Modell« - Das Metasystem Erde - Die Zukunftsf{\"a}higkeit der Gesellschaft}, language = {de} } @article{Hartmann2012, author = {Hartmann, Eddie}, title = {Der Forscher als Exot. Fremdheit als Ressource praxeologischer Feldforschung}, isbn = {978-3-531-17871-4}, year = {2012}, language = {de} } @article{RychkovYablokovRychkov2012, author = {Rychkov, Dmitry and Yablokov, M. and Rychkov, A.}, title = {Chemical and physical surface modification of PTFE films-an approach to produce stable electrets}, series = {Applied physics : A, Materials science \& processing}, volume = {107}, journal = {Applied physics : A, Materials science \& processing}, number = {3}, publisher = {Springer}, address = {New York}, issn = {0947-8396}, doi = {10.1007/s00339-012-6834-5}, pages = {589 -- 596}, year = {2012}, abstract = {The thermal stability of positive charge has been investigated in chemically and physically treated polytetrafluoroethylene (PTFE) films. It has been found that virgin films, oriented by the manufacturer, display an increase in thermal stability of positive charge with an increase of the initial value of surface potential. Such an anomalous behavior is explained by the influence of a negative tribocharge, trapped some small distance below the surface. In PTFE samples treated with orthophosphoric acid and with tetraethoxysilane, a considerable improvement of positive charge stability has been achieved, but no influence of the initial value of surface potential has been observed. However, this influence should be kept in mind when comparing charge stability in virgin and modified samples. In nonoriented PTFE films, no influence of the initial value of surface potential on charge stability has been observed. This could be due to the fact that these films did not possess a noticeable negative tribocharge. After the treatment in glow-discharge defluorination, oxidation and appearance of polar groups have been detected on the surface. These changes in chemical composition of a PTFE surface resulted in a noticeable improvement in thermal stability of positively charged electrets. This improvement is attributed to the formation of deeper traps on the modified surface.}, language = {en} } @article{FettkeLeifelsBrustetal.2012, author = {Fettke, J{\"o}rg and Leifels, Lydia and Brust, Henrike and Herbst, Karoline and Steup, Martin}, title = {Two carbon fluxes to reserve starch in potato (Solanum tuberosum L.) tuber cells are closely interconnected but differently modulated by temperature}, series = {Journal of experimental botany}, volume = {63}, journal = {Journal of experimental botany}, number = {8}, publisher = {Oxford Univ. Press}, address = {Oxford}, issn = {0022-0957}, doi = {10.1093/jxb/ers014}, pages = {3011 -- 3029}, year = {2012}, abstract = {Parenchyma cells from tubers of Solanum tuberosum L. convert several externally supplied sugars to starch but the rates vary largely. Conversion of glucose 1-phosphate to starch is exceptionally efficient. In this communication, tuber slices were incubated with either of four solutions containing equimolar [U-C-14]glucose 1-phosphate, [U-C-14]sucrose, [U-C-14]glucose 1-phosphate plus unlabelled equimolar sucrose or [U-C-14]sucrose plus unlabelled equimolar glucose 1-phosphate. C-14-incorporation into starch was monitored. In slices from freshly harvested tubers each unlabelled compound strongly enhanced C-14 incorporation into starch indicating closely interacting paths of starch biosynthesis. However, enhancement disappeared when the tubers were stored. The two paths (and, consequently, the mutual enhancement effect) differ in temperature dependence. At lower temperatures, the glucose 1-phosphate-dependent path is functional, reaching maximal activity at approximately 20 degrees C but the flux of the sucrose-dependent route strongly increases above 20 degrees C. Results are confirmed by in vitro experiments using [U-C-14]glucose 1-phosphate or adenosine-[U-C-14]glucose and by quantitative zymograms of starch synthase or phosphorylase activity. In mutants almost completely lacking the plastidial phosphorylase isozyme(s), the glucose 1-phosphate-dependent path is largely impeded. Irrespective of the size of the granules, glucose 1-phosphate-dependent incorporation per granule surface area is essentially equal. Furthermore, within the granules no preference of distinct glucosyl acceptor sites was detectable. Thus, the path is integrated into the entire granule biosynthesis. In vitro C-14-incorporation into starch granules mediated by the recombinant plastidial phosphorylase isozyme clearly differed from the in situ results. Taken together, the data clearly demonstrate that two closely but flexibly interacting general paths of starch biosynthesis are functional in potato tuber cells.}, language = {en} } @article{NakamuraOnoUtsumietal.2012, author = {Nakamura, Yasunori and Ono, Masami and Utsumi, Chikako and Steup, Martin}, title = {Functional interaction between plastidial starch phosphorylase and starch branching enzymes from rice during the synthesis of branched maltodextrins}, series = {Plant \& cell physiology}, volume = {53}, journal = {Plant \& cell physiology}, number = {5}, publisher = {Oxford Univ. Press}, address = {Oxford}, issn = {0032-0781}, doi = {10.1093/pcp/pcs030}, pages = {869 -- 878}, year = {2012}, abstract = {The present study established the way in which plastidial alpha-glucan phosphorylase (Pho1) synthesizes maltodextrin (MD) which can be the primer for starch biosynthesis in rice endosperm. The synthesis of MD by Pho1 was markedly accelerated by branching enzyme (BE) isozymes, although the greatest effect was exhibited by the presence of branching isozyme I (BEI) rather than by isozyme IIa (BEIIa) or isozyme IIb (BEIIb). The enhancement of the activity of Pho1 by BE was not merely due to the supply of a non-reducing ends. At the same time, Pho1 greatly enhanced the BE activity, possibly by generating a branched carbohydrate substrate which is used by BE with a higher affinity. The addition of isoamylase to the reaction mixture did not prevent the concerted action of Pho1 and BEI. Furthermore, in the product, the branched structure was, at least to some extent, maintained. Based on these results we propose that the interaction between Pho1 and BE is not merely due to chain-elongating and chain-branching reactions, but occurs in a physically and catalytically synergistic manner by each activating the mutual capacity of the other, presumably forming a physical association of Pho1, BEI and branched MDs. This close interaction might play a crucial role in the synthesis of branched MDs and the branched MDs can act as a primer for the biosynthesis of amylopectin molecules.}, language = {en} } @article{PaparelliGonzaliParlantietal.2012, author = {Paparelli, Eleonora and Gonzali, Silvia and Parlanti, Sandro and Novi, Giacomo and Giorgi, Federico M. and Licausi, Francesco and Kosmacz, Monika and Feil, Regina and Lunn, John Edward and Brust, Henrike and van Dongen, Joost T. and Steup, Martin and Perata, Pierdomenico}, title = {Misexpression of a chloroplast aspartyl protease leads to severe growth defects and alters carbohydrate metabolism in arabidopsis}, series = {Plant physiology : an international journal devoted to physiology, biochemistry, cellular and molecular biology, biophysics and environmental biology of plants}, volume = {160}, journal = {Plant physiology : an international journal devoted to physiology, biochemistry, cellular and molecular biology, biophysics and environmental biology of plants}, number = {3}, publisher = {American Society of Plant Physiologists}, address = {Rockville}, issn = {0032-0889}, doi = {10.1104/pp.112.204016}, pages = {1237 -- 1250}, year = {2012}, abstract = {The crucial role of carbohydrate in plant growth and morphogenesis is widely recognized. In this study, we describe the characterization of nana, a dwarf Arabidopsis (Arabidopsis thaliana) mutant impaired in carbohydrate metabolism. We show that the nana dwarf phenotype was accompanied by altered leaf morphology and a delayed flowering time. Our genetic and molecular data indicate that the mutation in nana is due to a transfer DNA insertion in the promoter region of a gene encoding a chloroplast-located aspartyl protease that alters its pattern of expression. Overexpression of the gene (oxNANA) phenocopies the mutation. Both nana and oxNANA display alterations in carbohydrate content, and the extent of these changes varies depending on growth light intensity. In particular, in low light, soluble sugar levels are lower and do not show the daily fluctuations observed in wild-type plants. Moreover, nana and oxNANA are defective in the expression of some genes implicated in sugar metabolism and photosynthetic light harvesting. Interestingly, some chloroplast-encoded genes as well as genes whose products seem to be involved in retrograde signaling appear to be down-regulated. These findings suggest that the NANA aspartic protease has an important regulatory function in chloroplasts that not only influences photosynthetic carbon metabolism but also plastid and nuclear gene expression.}, language = {en} } @article{HejaziSteupFettke2012, author = {Hejazi, Mahdi and Steup, Martin and Fettke, J{\"o}rg}, title = {The plastidial glucan, water dikinase (GWD) catalyses multiple phosphotransfer reactions}, series = {The FEBS journal}, volume = {279}, journal = {The FEBS journal}, number = {11}, publisher = {Wiley-Blackwell}, address = {Malden}, issn = {1742-464X}, doi = {10.1111/j.1742-4658.2012.08576.x}, pages = {1953 -- 1966}, year = {2012}, abstract = {The plant genome encodes at least two distinct and evolutionary conserved plastidial starch-related dikinases that phosphorylate a low percentage of glucosyl residues at the starch granule surface. Esterification of starch favours the transition of highly ordered a-glucans to a less ordered state and thereby facilitates the cleavage of interglucose bonds by hydrolases. Metabolically most important is the phosphorylation at position C6, which is catalysed by the glucan, water dikinase (GWD). The reactions mediated by recombinant wild-type GWD from Arabidopsis thaliana (AtGWD) and from Solanum tuberosum (StGWD) were studied. Two mutated proteins lacking the conserved histidine residue that is indispensible for glucan phosphorylation were also included. The wild-type GWDs consume approximately 20\% more ATP than is required for glucan phosphorylation. Similarly, although incapable of phosphorylating a-glucans, the two mutated dikinase proteins are capable of degrading ATP. Thus, consumption of ATP and phosphorylation of a-glucans are not strictly coupled processes but, to some extent, occur as independent phosphotransfer reactions. As revealed by incubation of the GWDs with [gamma-33P]ATP, the consumption of ATP includes the transfer of the gamma-phosphate group to the GWD protein but this autophosphorylation does not require the conserved histidine residue. Thus, the GWD proteins possess two vicinal phosphorylation sites, both of which are transiently phosphorylated. Following autophosphorylation at both sites, native dikinases flexibly use various terminal phosphate acceptors, such as water, alpha-glucans, AMP and ADP. A model is presented describing the complex phosphotransfer reactions of GWDs as affected by the availability of the various acceptors.}, language = {en} } @article{GarzSandmannRadingetal.2012, author = {Garz, Andreas and Sandmann, Michael and Rading, Michael and Ramm, Sascha and Menzel, Ralf and Steup, Martin}, title = {Cell-to-cell diversity in a synchronized chlamydomonas culture as revealed by single-cell analyses}, series = {Biophysical journal}, volume = {103}, journal = {Biophysical journal}, number = {5}, publisher = {Cell Press}, address = {Cambridge}, issn = {0006-3495}, doi = {10.1016/j.bpj.2012.07.026}, pages = {1078 -- 1086}, year = {2012}, abstract = {In a synchronized photoautotrophic culture of Chlamydomonas reinhardtii, cell size, cell number, and the averaged starch content were determined throughout the light-dark cycle. For single-cell analyses, the relative cellular starch was quantified by measuring the second harmonic generation (SHG). In destained cells, amylopectin essentially represents the only biophotonic structure. As revealed by various validation procedures, SHG signal intensities are a reliable relative measure of the cellular starch content. During photosynthesis-driven starch biosynthesis, synchronized Chlamydomonas cells possess an unexpected cell-to-cell diversity both in size and starch content, but the starch-related heterogeneity largely exceeds that of size. The cellular volume, starch content, and amount of starch/cell volume obey lognormal distributions. Starch degradation was initiated by inhibiting the photosynthetic electron transport in illuminated cells or by darkening. Under both conditions, the averaged rate of starch degradation is almost constant, but it is higher in illuminated than in darkened cells. At the single-cell level, rates of starch degradation largely differ but are unrelated to the initial cellular starch content. A rate equation describing the cellular starch degradation}, language = {en} } @article{Ette2012, author = {Ette, Ottmar}, title = {Alexander von Humboldt in Daniel Kehlmanns Welt}, volume = {XIII}, number = {25}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62391}, pages = {34 -- 40}, year = {2012}, abstract = {Wie stark sich im Verlauf des zur{\"u}ckliegenden Vierteljahrhunderts der Bekanntheitsgrad Alexander von Humboldts in der deutschsprachigen {\"O}ffentlichkeit ver{\"a}ndert hat, zeigen nicht nur Fernsehumfragen zu den ber{\"u}hmtesten Deutschen, in denen Alexander von Humboldt mittlerweile figuriert, oder Fernsehserien, die {\"u}ber aktuelle Expeditionen berichten und auf Humboldts Namen zur{\"u}ckgreifen. Am deutlichsten vielleicht belegt dies der enorme Erfolg von Daniel Kehlmanns Roman Die Vermessung der Welt, der ohne die zuvor skizzierte Entwicklung nicht denkbar gewesen w{\"a}re. Es ist vor diesem Hintergrund nicht nur reizvoll, sondern aufschlußreich, sich mit dem großen Erfolg dieses kleinen Romans zu besch{\"a}ftigen. Worum geht es in Die Vermessung der Welt? Und wie l{\"a}ßt sich das »Ph{\"a}nomen Kehlmann« aus etwas gr{\"o}ßerer Distanz erkl{\"a}ren?}, language = {de} } @article{Ette2012, author = {Ette, Ottmar}, title = {De c{\´o}micos e hist{\´e}ricos}, volume = {XIII}, number = {25}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus-62406}, pages = {41 -- 45}, year = {2012}, abstract = {La popularidad de Alejandro de Humboldt ha cambiado profundamente dentro del {\´u}ltimo cuarto de siglo en la opini{\´o}n p{\´u}blica de habla alemana. Prueba de esto son no s{\´o}lo las encuestas televisivas sobre los alemanes m{\´a}s famosos, dentro de las cuales figura en estos momentos Alejandro de Humboldt, o programas de televisi{\´o}n sobre expediciones actuales, en los que continuamente se retoma el nombre de Humboldt; quiz{\´a}s la comprobaci{\´o}n m{\´a}s clara de este cambio es el {\´e}xito enorme de la novela Die Vermessung der Welt de Daniel Kehlmann. {\´E}xito que ser{\´i}a impensable sin el proceso esbozado m{\´a}s arriba. Ante este trasfondo, estudiar el gran {\´e}xito de esta peque{\~n}a novela resulta no s{\´o}lo atractivo, sino adem{\´a}s revelador. ?'De qu{\´e} se trata Die Vermessung der Welt? ?'C{\´o}mo se puede explicar el »fen{\´o}meno Kehlmann« desde una distancia relativamente mayor?}, language = {es} }