TY - INPR A1 - Eckstein, Lars T1 - Belonging in music and the music of unbelonging in Richard Powers’s The Time of Our Singing Y1 - 2005 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-85584 ER - TY - GEN A1 - Eckstein, Lars T1 - The pitfalls of picturing atlantic slavery : Steven Spielbergs Amistad vs. Guy Deslauriers's Middle Passage T3 - Zweitveröffentlichungen der Universität Potsdam : Philosophische Reihe - 84 Y1 - 2008 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-59422 ER - TY - GEN A1 - Eckstein, Lars T1 - Transatlantic slavery and the literary imagination N2 - Transatlantic slavery and the literary imagination The challenges of turning transatlantic slavery into literature A polyphony of historical voices: Caryl Phillips’s dialogic imagination Literary imagination and the Zong Massacre: Fred D’Aguiar and David Dabydeen Perspectives T3 - Zweitveröffentlichungen der Universität Potsdam : Philosophische Reihe - 81 Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-59201 ER - TY - GEN A1 - Eckstein, Lars T1 - M.I.A.’s “Born Free” and the ambivalent politics of authenticity and provocation T3 - Zweitveröffentlichungen der Universität Potsdam : Philosophische Reihe - 83 Y1 - 2010 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-59236 ER - TY - INPR A1 - Eckstein, Lars T1 - Postcolonial Piracy N2 - Media piracy is a contested term in the academic as much as the public debate. It is used by the corporate industries as a synonym for the theft of protected media content with disastrous economic consequences. It is celebrated by technophile elites as an expression of freedom that ensures creativity as much as free market competition. Marxist critics and activists promote flapiracy as a subversive practice that undermines the capitalist world system and its structural injustices. Artists and entrepreneurs across the globe curse it as a threat to their existence, while many use pirate infrastructures and networks fundamentally for the production and dissemination of their art. For large sections of the population across the global South, piracy is simply the only means of accessing the medial flows of a progressively globalising planet. Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-103307 ER - TY - INPR A1 - Eckstein, Lars T1 - Three ways of looking at illegal immigration BT - clandestine existence in novels by Salman Rushdie, Christopher Hope and Caryl Phillips Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-85567 SP - 141 EP - 157 ER - TY - INPR A1 - Eckstein, Lars T1 - Sam Selvon, The Lonely Londoners (1956) N2 - This essay reads Sam Selvon’s novel The Lonely Londoners (1956) as a milestone in the decolonisation of British fiction. After an introduction to Selvon and the core composition of the novel, it discusses the ways in which the narrative takes on issues of race and racism, how it in the tradition of the Trinidadian carnival confronts audiences with sexual profanation and black masculine swagger, and not least how the novel, especially through its elaborate use of creole Englishes, reimagines London as a West Indian metropolis. The essay then turns more systematically to the ways in which Selvon translates Western literary models and their isolated subject positions into collective modes of narrative performance taken from Caribbean orature and the calypsonian tradition. The Lonely Londoners breathes entirely new life into the ossified conventions of the English novel, and imbues it with unforeseen aesthetic, ethical, political and epistemological possibilities. Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-103285 ER - TY - GEN A1 - Eckstein, Lars T1 - Torpedoing the authorship of popular music : a reading of Gorillaz’ ‘Feel Good Inc.’ N2 - This article addresses problems of authorship and creative authority in popular music, in particular in view of a pervasive split between modes of aesthetic production (involving modernist assemblage, multiple authorship, and the late capitalist logic of major label policies) and modes of aesthetic reception (which tend to take popular music as the organic output of individual performers). While rock musicians have attempted to come to terms with this phenomenon by either performing a ‘Romantic’ sense of authenticity (basically by importing folk values to the production process) or ‘Modernist authenticity’ (by highlighting experimen- tation and alienation), Damon Albarn and Jamie Hewlett, creators of Gorillaz, found a third way which ingeniously allows them to do both. By creating a virtual rock band, and by hiding their own media personalities behind those of their virtual alter egos, they brought themselves into a position which allows them to produce ‘sincere’ popular music which ‘playfully’ stages the absurdities of major label music business while very successfully operating within its very confines. T3 - Zweitveröffentlichungen der Universität Potsdam : Philosophische Reihe - 80 Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-59116 ER - TY - GEN A1 - Eckstein, Lars T1 - A love supreme : Jazzthetic strategies in Toni Morrison's Beloved T3 - Zweitveröffentlichungen der Universität Potsdam : Philosophische Reihe - 85 Y1 - 2006 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-60446 ER - TY - GEN A1 - Eckstein, Lars T1 - Saturday on Dover Beach : Ian McEwan, Matthew Arnold, and post-9/11 melancholia N2 - This essay revisits Ian McEwan’s extremely successful novel Saturday, and interrogates its exemplary assessment of the British cultural climate after 9/11. The particular focus is on McEwan’s extensive recourse to the writings of Matthew Arnold, whose melancholy outlook on culture and anarchy McEwan basically translates into the 21st century without much ideological fraction. This relapse into Victorian liberal humanism as consolation for a Western world besieged by the contingencies of terrorism is extremely problematic. Not only does it wilfully ignore the transcultural realities of modern Britain, it also promotes an ahistorical and apolitical mode of critical inquiry which may be called reductive at best in view of the global challenges that the novel addresses. T3 - Zweitveröffentlichungen der Universität Potsdam : Philosophische Reihe - 82 Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-59228 ER - TY - THES A1 - Eckstein, Johannes T1 - Die Corona-Schutzimpfung: Zur umkämpften Konstitution eines zentralen Phänomens des Pandemiediskurses T1 - The Corona Vaccination: On the contested constitution of a central phenomenon in pandemic discourse BT - eine wissenssoziologische Diskursanalyse N2 - Schon früh während der Corona-Pandemie entwickelte sich die Idee einer Schutzimpfung gegen das Virus zu einem zentralen Motiv im Kampf gegen die globale und teils tödliche Seuche. Dies spiegelt sich auch in den medial ausgetragenen Debatten um Anti-Corona-Vakzine wider, in denen bestimmtes, teils konflikthaftes Wissen produziert und vermittelt wurde. Die vorliegende Masterarbeit rekonstruiert den deutschsprachigen Diskurs um die Corona-Schutzimpfung in Form einer wissenssoziologischen Diskursanalyse. Sie untersucht, wie gesellschaftliches Wissen zur Impfung in meinungsführenden Tages- und Wochenzeitungen sowie in ausgewählten Blogs während der Pandemie von Anfang 2020 bis Mitte 2022 (re)produziert wird. Ausgangspunkt sind – anknüpfend an aktuelle Beiträge der kritischen Soziologie – die politisch-ökonomischen Zusammenhänge und Voraussetzungen, wie beispielsweise globale Lebens-, Wirtschafts- und Konsumweisen, durch die diese Pandemie erst möglich wurde. Durch diese Perspektive kann die Pandemie als soziales Ereignis begriffen werden, anstatt als unvorhersehbare medizinische Katastrophe, wie es in den politischen und medialen Debatten den Anschein hatte. In der Analyse zeigt sich, dass diese Umstände in der medialen Auseinandersetzung keinerlei Widerhall fanden, was den Diskurs de-kontextualisiert und den herausgearbeiteten Radikalismen den Boden bereitet hat. Die Analyse ermöglicht es, zwei Zugänge zum Diskurs zu unterscheiden: Ein Portal eröffnet den Zugang über gesellschaftlich mehrheitlich anerkanntes, also orthodoxes Wissen, das zweite über gesellschaftlich mehrheitlich nicht anerkanntes, also heterodoxes Wissen. Entlang von benannten Themen, Problemen und Lösungen lassen sich auf einer Pro-Kontra-Achse sieben Wissenstypen rekonstruieren, die von radikaler Impfbefürwortung bis radikaler Ablehnung reichen. Vier der Wissensbestände argumentieren für die Impfung, drei dagegen – der Raum des Indifferenten dazwischen bleibt medial unbesetzt. Anschließend werden diese Typen entlang von Werten, auf die rekurriert wird, und schließlich nach Ressourcen, Verantwortlichkeiten und Sprecher*innenrollen unterschieden, sodass eine klare und idealtypische Charakterisierung des jeweiligen Wissens entsteht. Durch die Analyse werden überdies diskursive Verschiebungen im Zeitverlauf sichtbar. Es zeigen sich einerseits eine Polarisierung des Diskurses insgesamt, andererseits eine Ernüchterung innerhalb der Impfbefürwortung sowie die interdependente Radikalisierung von Positionen an beiden Enden des Spektrums. Abschließend werden die Ergebnisse der Analyse komplementär zum Ausgangspunkt gesellschaftstheoretisch eingebettet. Zum einen werden Eigendynamiken de-kontextualisierter und sich infolgedessen radikalisierender Diskurse reflektiert, innerhalb derer sich die Extreme so weit voneinander entfernen, dass sie sich schlussendlich wieder berühren. Zum anderen wird die im Diskurs sichtbar dominante neo-soziale Anrufung der individuellen Verantwortung in einer gleichzeitig wenig solidarischen Gesellschaft im Kontext eines neoliberal geprägten Verständnisses von individueller Freiheit, Demokratie und sozialer Verantwortung diskutiert. N2 - Early on during the coronavirus pandemic, the idea of vaccination against the virus became a central motif in the fight against the global and sometimes deadly epidemic. This is also reflected in the media debates about anti-corona vaccines, in which certain, sometimes conflictual knowledge was produced and communicated. This master's thesis reconstructs the German-language discourse surrounding the coronavirus vaccination in the form of a sociological discourse analysis. It examines how social knowledge about vaccination is (re)produced in opinion-leading daily and weekly newspapers and in selected blogs during the pandemic from the beginning of 2020 to mid-2022. The starting point - following on from current contributions in critical sociology - is the political-economic contexts and conditions, such as global modus vivendi, economic and consumption patterns, which made this pandemic possible in the first place. This perspective allows the pandemic to be understood as a social event rather than an unforeseeable medical catastrophe, as it appeared to be in the political and media debates. The analysis shows that these circumstances were not echoed in the media debate, which de-contextualised the discourse and prepared the ground for the radicalisms that emerged. The analysis makes it possible to distinguish between two approaches to the discourse: One portal provides access via knowledge that is recognised by the majority of society, i.e. orthodox knowledge, and the second via knowledge that is not recognised by the majority of society, i.e. heterodox knowledge. Along named topics, problems and solutions, seven types of knowledge can be reconstructed on a pro-contra axis, ranging from radical support for vaccination to radical rejection. Four of the knowledge types argue in favour of vaccination, three against - the space of indifference in between remains unoccupied in the media. These types are then differentiated according to the values referred to and finally according to resources, responsibilities and speaker roles, which lead to an ideal-typical characterisation of the respective knowledge. The analysis also reveals discursive shifts over time. On the one hand, a polarisation of the discourse as a whole can be seen, while on the other, a disillusionment within vaccination advocacy and the interdependent radicalisation of positions at both ends of the spectrum. Finally, the results of the analysis are embedded in social theory to complement the starting point. On the one hand, the inherent dynamics of de-contextualised and consequently radicalising discourses are reflected upon, within which the extremes move so far apart that they ultimately touch each other again. On the other hand, the visibly dominant neo-social invocation of individual responsibility in a society with little solidarity is discussed in the context of a neo-liberal understanding of individual freedom, democracy and social responsibility. KW - Pandemie KW - Corona KW - Diskursanalyse KW - Wissenssoziologie KW - politische Soziologie KW - Corona-Schutzimpfung KW - kritische Soziologie KW - medialer Diskurs KW - Neo-Soziale KW - Corona-Krise KW - Covid KW - Corona virus KW - Corona crisis KW - Corona vaccination KW - discourse analysis KW - pandemic KW - sociology of knowledge KW - critical sociology KW - media discourse KW - political sociology Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-627258 ER - TY - GEN A1 - Eckler, Susanne T1 - Didaktisch-methodische Zugänge zum Themenfeld 'Nationalsozialismus' aus konstruktivistischer Perspektive N2 - Die Arbeit gibt einen kurzen Abriss über die Grundlagen systemisch-konstruktivistischer Lerntheorie mit der anschließenden Fragestellung, was die aktuellen Forschungsergebnisse aus Neurobiologie, Philosophie, Psychologie und Erziehungswissenschaften zur didaktischen Auseinandersetzung mit dem Nationalsozialismus beitragen können. In der bisherigen Forschung zur didaktischen „Aufbereitung“ des Themas 'Nationalsozialismus' gibt es eine Fülle von Unterrichtskonzepten, Sequenzplanungen und Unterrichtsmaterialien. Mein Anspruch war es nicht, universal gültige Unterrichtspläne vorzulegen, sondern Unterricht bewusst offen, selbstorganisiert und systemisch zu gestalten. Dafür werden die Rahmenbedingungen von Unterricht zum Thema Nationalsozialismus näher beleuchtet, um anschließend didaktische Prinzipien und methodische Ansätze für die Beschäftigung mit dem Nationalsozialismus vorzustellen. Grundlage für diese Überlegungen waren vor allem Theodor W. Adornos Vortrag „Erziehung nach Auschwitz“, die konstruktivistischen Lernansätze von Rolf Arnold, Kersten Reich und Horst Siebert und aktuelle Projekte und Schriften aus der gedenkstättenpädagogischen Forschung von Matthias Heyl, Imke Scheurich, Verena Haug u.a. Eine explizit konstruktivistische Betrachtung von Geschichtsdidaktik und Gedenkstättenpädagogik steht noch aus, diese Arbeit versucht, einen Ansatz zur Schließung dieser Forschungslücke zu entwickeln. N2 - This paper gives a short view into the basics of systemic-constructivist theory of learning with the question, what current research findings from neurobiology, philosophy, psychology and education can account for teaching confrontation with National Socialism. In the previous research on educational examination on this subject, there is a wealth of teaching concepts, sequence plannings and teaching materials. The claim is not to give universally valid lesson plans, but to develope deliberately open, self-organized and systemic arranged education. For this I analysed the basic conditions of teaching about National Socialism to present didactic principles and methodological approaches to the study of Nazism. Foundations of these considerations were Theodor W. Adorno's "Erziehung nach Auschwitz", constructivist theories of learning from Kersten Reich, Rolf Arnold and Horst Siebert and current projects and writings from memorial pedagogy by Matthias Heyl, Imke Scheurich, Verena Haug et al. An explicicitly constructivist view on history didactics and memorial pedagogy is still missing, so this work is an attempt to develop an approach to close that gap. KW - Nationalsozialismus KW - Konstruktivismus KW - konstruktivistische Didaktik KW - Kritische Geschichtsdidaktik KW - konstruktivistische Geschichtsdidaktik KW - National Socialism KW - constructivism KW - history didactics Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-57684 ER - TY - THES A1 - Eckler, Susanne T1 - Das ‚Brandenburgische Mädchenfürsorgeheim‘ in Prenzlau 1902 – 1935 BT - im Kontext staatlicher Ersatzerziehung in Brandenburg-Preußen N2 - Die vorliegende Arbeit gibt einen Abriss über die Grundlagen des Brandenburgisch-Preußischen Fürsorgeerziehungssystems am Beispiel des Brandenburgischen Mädchenfürsorgeheims in Prenzlau, das in den Jahren 1902 bis 1935 bestand. Basierend auf historischer und erziehungswissenschaftlicher Forschung werden die Lebens- und Arbeitsverhältnisse junger Mädchen und Frauen und Erzieherinnen im Fürsorgesystem epochenübergreifend aufgezeigt. Vor diesem Hintergrund erfolgte (in der Forschung erstmalig) die Rekonstruktion des geografischen und sozialen Raums des Brandenburgischen Mädchenfürsorgeheims mit seinen Spezifika als Heim für ‚verwahrloste‘, schulentlassene Mädchen, also Mädchen und junge Frauen im Alter von 14 bis 21 bzw. 19 Jahren. Dabei wird die Anstalt als eigenes System betrachtet, das von der Gesellschaft durch herrschende Diskurse, Normsetzungen und ökonomische Rahmenbedingungen beeinflusst war, gleichzeitig aber ein eigenes Regelsystem in Form einer festen Tagesstruktur, Disziplinierungsmaßnahmen und religiösen Ritualen ausbildete und den historischen Akteur*innen sehr eigene Handlungsspielräume und Grenzen aufzeigte. Grundlage der Arbeit sind ungedruckte und gedruckte Quellen wie die Verwaltungsberichte des Provinzialausschusses, die „Statistiken über die Fürsorgeerziehung Minderjähriger und über die Zwangserziehung Jugendlicher“ des Preußischen Innenministeriums, zahlreiches Kartenmaterial und Gebäudezeichnungen, Verwaltungsunterlagen sowie vier persönliche Briefe von Zöglingen und Angehörigen. Die verfügbaren statistischen Angaben zu den Mädchen des Heims sind in Form von Diagrammen zusammengefasst, aufgearbeitet und der Arbeit angehängt worden. KW - Fürsorgeerziehung KW - Brandenburg-Preußen KW - Mädchenfürsorge KW - Fürsorgesystem KW - Mädchenheim Prenzlau KW - Mädchenfürsorgeheim Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-505671 ER - TY - JOUR A1 - Eckl, Rebecca ED - Denz, Rebekka ED - Rudolf, Gabi T1 - „Gelobt seist du, Ewiger!“ BT - Annäherung an ein Gebetbuch-Fragment aus der Genisa Altenschönbach JF - Genisa-Blätter II KW - Genisa KW - Jüdische Studien KW - Geniza KW - Jewish Studies Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-104601 SP - 67 EP - 81 ER - TY - GEN A1 - Eckes, Thomas A1 - Krahé, Barbara A1 - Six, Bernd T1 - Predicting behavior in natural settings : four field studies N2 - Content Basic Concepts and Applied Perspectives in Attitude-Behavior Research Searching for Medium-Range Models of Behavior Prediction Putting the Models to Test General Discussion References T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - paper 072 Y1 - 1989 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-33862 ER - TY - GEN A1 - Eckert, Silvia A1 - Herden, Jasmin A1 - Stift, Marc A1 - Joshi, Jasmin Radha A1 - van Kleunen, Mark T1 - Manipulation of cytosine methylation does not remove latitudinal clines in two invasive goldenrod species in Central Europe T2 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - Invasive species frequently differentiate phenotypically in novel environments within a few generations, often even with limited genetic variation. For the invasive plants Solidago canadensis and S. gigantea, we tested whether such differentiation might have occurred through heritable epigenetic changes in cytosine methylation. In a 2-year common-garden experiment, we grew plants from seeds collected along a latitudinal gradient in their non-native Central European range to test for trait differentiation and whether differentiation disappeared when seeds were treated with the demethylation agent zebularine. Microsatellite markers revealed no population structure along the latitudinal gradient in S. canadensis, but three genetic clusters in S. gigantea. Solidago canadensis showed latitudinal clines in flowering phenology and growth. In S. gigantea, the number of clonal offspring decreased with latitude. Although zebularine had a significant effect on early growth, probably through effects on cytosine methylation, latitudinal clines remained (or even got stronger) in plants raised from seeds treated with zebularine. Thus, our experiment provides no evidence that epigenetic mechanisms by selective cytosine methylation contribute to the observed phenotypic differentiation in invasive goldenrods in Central Europe. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1378 KW - common‐garden experiment KW - epigenetic variation KW - microsatellites KW - Solidago canadensis KW - Solidago gigantea KW - zebularine Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-569528 SN - 1866-8372 IS - 1 ER - TY - JOUR A1 - Eckert, Silvia A1 - Herden, Jasmin A1 - Stift, Marc A1 - Durka, Walter A1 - Kleunen, Mark van A1 - Joshi, Jasmin Radha T1 - Traces of genetic but not epigenetic adaptation in the invasive goldenrod Solidago canadensis despite the absence of population structure JF - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - Biological invasions may result from multiple introductions, which might compensate for reduced gene pools caused by bottleneck events, but could also dilute adaptive processes. A previous common-garden experiment showed heritable latitudinal clines in fitness-related traits in the invasive goldenrod Solidago canadensis in Central Europe. These latitudinal clines remained stable even in plants chemically treated with zebularine to reduce epigenetic variation. However, despite the heritability of traits investigated, genetic isolation-by-distance was non-significant. Utilizing the same specimens, we applied a molecular analysis of (epi)genetic differentiation with standard and methylation-sensitive (MSAP) AFLPs. We tested whether this variation was spatially structured among populations and whether zebularine had altered epigenetic variation. Additionally, we used genome scans to mine for putative outlier loci susceptible to selection processes in the invaded range. Despite the absence of isolation-by-distance, we found spatial genetic neighborhoods among populations and two AFLP clusters differentiating northern and southern Solidago populations. Genetic and epigenetic diversity were significantly correlated, but not linked to phenotypic variation. Hence, no spatial epigenetic patterns were detected along the latitudinal gradient sampled. Applying genome-scan approaches (BAYESCAN, BAYESCENV, RDA, and LFMM), we found 51 genetic and epigenetic loci putatively responding to selection. One of these genetic loci was significantly more frequent in populations at the northern range. Also, one epigenetic locus was more frequent in populations in the southern range, but this pattern was lost under zebularine treatment. Our results point to some genetic, but not epigenetic adaptation processes along a large-scale latitudinal gradient of S. canadensis in its invasive range. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1271 KW - AFLP KW - MSAP KW - cytosine methylation KW - spatial autocorrelation KW - genome scan Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-566758 SN - 1866-8372 SP - 1 EP - 17 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - THES A1 - Eckert, Silvia T1 - Trait variation in changing environments: Assessing the role of DNA methylation in non-native plant species T1 - Merkmalsvariation in sich verändernden Umgebungen: Bewertung der Rolle der DNA-Methylierung bei nicht einheimischen Pflanzenarten N2 - The increasing introduction of non-native plant species may pose a threat to local biodiversity. However, the basis of successful plant invasion is not conclusively understood, especially since these plant species can adapt to the new range within a short period of time despite impoverished genetic diversity of the starting populations. In this context, DNA methylation is considered promising to explain successful adaptation mechanisms in the new habitat. DNA methylation is a heritable variation in gene expression without changing the underlying genetic information. Thus, DNA methylation is considered a so-called epigenetic mechanism, but has been studied in mainly clonally reproducing plant species or genetic model plants. An understanding of this epigenetic mechanism in the context of non-native, predominantly sexually reproducing plant species might help to expand knowledge in biodiversity research on the interaction between plants and their habitats and, based on this, may enable more precise measures in conservation biology. For my studies, I combined chemical DNA demethylation of field-collected seed material from predominantly sexually reproducing species and rearing offsping under common climatic conditions to examine DNA methylation in an ecological-evolutionary context. The contrast of chemically treated (demethylated) plants, whose variation in DNA methylation was artificially reduced, and untreated control plants of the same species allowed me to study the impact of this mechanism on adaptive trait differentiation and local adaptation. With this experimental background, I conducted three studies examining the effect of DNA methylation in non-native species along a climatic gradient and also between climatically divergent regions. The first study focused on adaptive trait differentiation in two invasive perennial goldenrod species, Solidago canadensis sensu latu and S. gigantea AITON, along a climate gradient of more than 1000 km in length in Central Europe. I found population differences in flowering timing, plant height, and biomass in the temporally longer-established S. canadensis, but only in the number of regrowing shoots for S. gigantea. While S. canadensis did not show any population structure, I was able to identify three genetic groups along this climatic gradient in S. gigantea. Surprisingly, demethylated plants of both species showed no change in the majority of traits studied. In the subsequent second study, I focused on the longer-established goldenrod species S. canadensis and used molecular analyses to infer spatial epigenetic and genetic population differences in the same specimens from the previous study. I found weak genetic but no epigenetic spatial variation between populations. Additionally, I was able to identify one genetic marker and one epigenetic marker putatively susceptible to selection. However, the results of this study reconfirmed that the epigenetic mechanism of DNA methylation appears to be hardly involved in adaptive processes within the new range in S. canadensis. Finally, I conducted a third study in which I reciprocally transplanted short-lived plant species between two climatically divergent regions in Germany to investigate local adaptation at the plant family level. For this purpose, I used four plant families (Amaranthaceae, Asteraceae, Plantaginaceae, Solanaceae) and here I additionally compared between non-native and native plant species. Seeds were transplanted to regions with a distance of more than 600 kilometers and had either a temperate-oceanic or a temperate-continental climate. In this study, some species were found to be maladapted to their own local conditions, both in non-native and native plant species alike. In demethylated individuals of the plant species studied, DNA methylation had inconsistent but species-specific effects on survival and biomass production. The results of this study highlight that DNA methylation did not make a substantial contribution to local adaptation in the non-native as well as native species studied. In summary, my work showed that DNA methylation plays a negligible role in both adaptive trait variation along climatic gradients and local adaptation in non-native plant species that either exhibit a high degree of genetic variation or rely mainly on sexual reproduction with low clonal propagation. I was able to show that the adaptive success of these non-native plant species can hardly be explained by DNA methylation, but could be a possible consequence of multiple introductions, dispersal corridors and meta-population dynamics. Similarly, my results illustrate that the use of plant species that do not predominantly reproduce clonally and are not model plants is essential to characterize the effect size of epigenetic mechanisms in an ecological-evolutionary context. N2 - Die zunehmende Eintragung nicht-heimischer Pflanzenarten kann eine Gefahr für die lokale Artenvielfalt darstellen. Die Grundlagen einer erfolgreichen pflanzlichen Ausbreitung sind jedoch nicht abschließend geklärt, zumal sich diese Arten innerhalb kurzer Zeit an das neue Verbreitungsgebiet anpassen können trotz anfänglich reduzierter genetischer Vielfalt der Startpopulationen. In diesem Kontext gilt DNA-Methylierung als vielversprechend, um erfolgreiche Anpassungsmechanismen im neuen Lebensraum zu erklären. Bei der DNA-Methylierung handelt es sich um eine vererbbare Variation der Genaktivität, ohne dass die zugrundeliegende genetische Erbinformation verändert wird. Damit gehört DNA-Methylierung zu den sogenannten epigenetischen Mechanismen, wurde jedoch vorwiegend bei sich klonal vermehrenden Pflanzenarten oder genetischen Modellpflanzen untersucht. Ein Verständnis dieses epigenetischen Mechanismus im Zusammenhang mit nicht-einheimischen, sich vorwiegend sexuell reproduzierenden Pflanzenarten erweitert das Wissen in der Biodiversitätsforschung zur Interaktion zwischen Pflanzen und ihrem Lebensraum und kann, darauf aufbauend, präzisere Maßnahmen in der Naturschutzbiologie ermöglichen. Für meine Studien kombinierte ich die chemische DNA-Demethylierung von im Freiland gesammeltem Samenmaterial sich vorwiegend sexuell fortpflanzender Arten und die Aufzucht unter gemeinsamen klimatischen Bedingungen, um DNA-Methylierung im ökologisch-evolutionären Kontext zu untersuchen. Der Kontrast von chemisch behandelten (demethylierten) Pflanzen, deren Methylierungsvariation nun künstlich verringert war, und unbehandelten Kontrollpflanzen derselben Art ermöglichte mir die Auswirkung dieses Mechanismus auf adaptive Merkmalsvariationen und lokale Anpassung zu studieren. Vor diesem experimentellen Hintergrund führte ich drei Studien durch, um die Auswirkung von DNA-Methylierung bei nicht-einheimischen Pflanzenarten entlang eines klimatischen Gradienten und zwischen zwei klimatisch unterschiedlichen Regionen zu untersuchen. Die erste Studie konzentrierte sich auf adaptive Merkmalsveränderungen bei Nachkommen von zwei invasiven, mehrjährigen Goldrutenarten, Solidago canadensis sensu latu und S. gigantea AITON, entlang eines Klimagradienten von mehr als 1000 km Länge in Zentraleuropa. Ich fand graduelle Unterschiede im Blühzeitpunkt, in der Pflanzenhöhe und der Biomasse bei der zeitlich länger etablierten S. canadensis, bei S. gigantea jedoch nur in der Anzahl der nachwachsenden Triebe. Während S. canadensis keinerlei Populationsstruktur aufwies, konnte ich bei S. gigantea drei genetische Gruppen entlang dieses Klimagradienten identifizieren. Überraschenderweise zeigten demethylierte Pflanzen beider Arten keine Veränderung in der überwiegenden Anzahl der untersuchten Merkmale. In der darauffolgenden zweiten Studie konzentrierte ich mich auf die länger etablierte Goldrutenart S. canadensis und verwendete molekulare Analysen, um räumliche epigenetische und genetische Populationunterschiede aus den Exemplaren der vorhergehenden Studie abzuleiten. Ich fand schwache genetische aber keine epigenetische räumliche Variation zwischen den Populationen. Zusätzlich konnte ich einen genetischen und einen epigenetischen Marker identifizieren, welcher potentiell unter Selektion stehen könnte. Allerdings bestätigten die Ergebnisse dieser Studie erneut, dass DNA-Methylierung bei S. canadensis kaum in die Anpassung an das neue Verbreitungsgebiet involviert zu sein scheint. Schließlich führte ich eine dritte Studie durch, in welcher ich Samen kurzlebiger Pflanzenarten reziprok zwischen zwei klimatisch unterschiedlichen Regionen in Deutschland transplantierte, um lokale Anpassung auf Ebene der Pflanzenfamilien zu untersuchen. Zu diesem Zweck nutze ich vier Pflanzenfamilien (Amaranthaceae, Asteraceae, Plantaginaceae, Solanaceae), wobei ich hier auch zwischen nicht-heimischen und heimischen Pflanzenarten verglich. Beide Regionen lagen mehr als 600 Kilometer voneinander entfernt und wiesen entweder ein gemäßigt-ozeanisches oder gemäßigt-kontinentales Klima auf. In dieser Studie zeigte sich für einige—sowohl nicht-einheimische als auch einhimische—Arten eine Fehlanpassung an die eigenen lokalen Bedingungen. In demethylierten Individuen der untersuchten Pflanzenarten wirkte sich die DNA-Methylierung widersprüchlich, aber artspezifisch auf das Überleben und die Biomasseproduktion aus. Die Ergebnisse dieser Studie unterstreichen, dass DNA-Methylierung einen vernachlässigbaren Beitrag zur lokalen Anpassung bei den untersuchten nicht-heimischen, aber auch einheimischen Arten leistete. Zusammenfassend konnte ich mit dieser Arbeit festellen, dass DNA-Methylierung bei nicht-einheimischen Pflanzenarten eine untergeordnete Rolle sowohl bei der adaptiven Merkmalsvariation entlang von Klimagradienten als auch der lokalen Anpassung an klimatisch unterschiedliche Regionen spielt, wenn diese Pflanzenarten eine hohe genetische Vielfalt aufweisen und sich hauptsächlich sexuell vermehren. Ich konnte zeigen, dass der Anpassungserfolg dieser nicht-einheimischen Pflanzenarten kaum durch DNA-Methylierung erklärbar ist, sondern vielmehr eine mögliche Folge mehrfacher Eintragungen, von Ausbreitungskorridoren und Meta-Populationsdynamiken sein könnte. Die Ergebnisse dieser Studien verdeutlichen ebenso, dass die Verwendung von Pflanzenarten, die sich nicht überwiegend klonal vermehren und keine genetischen Modellpflanzen sind, unerlässlich ist, um die Effektstärke epigenetischer Mechanismen im ökologisch-evolutionären Kontext zu charakterisieren. KW - common-garden experiment KW - reciprocal transplant experiment KW - epigenetics KW - cytosine methylation KW - zebularine KW - adaptive differentiation KW - local adaptation KW - microsatellites KW - Solidago canadensis KW - Solidago gigantea KW - Amaranthus retroflexus KW - Chenopodium album KW - Erigeron canadensis KW - Erigeron annuus KW - Lactuca serriola KW - Senecio vulgaris KW - Sonchus oleraceus KW - Tripleurospermum inodorum KW - Veronica persica KW - Plantago major KW - Datura stramonium KW - Solanum nigrum KW - latitudinal clines KW - population structure KW - invasive KW - ruderal KW - non-native KW - Central Europe KW - Germany KW - AFLP KW - MSAP KW - spatial autocorrelation KW - genome scan KW - Gemeinschaftsgarten-Experiment KW - reziprokes Transplantationsexperiment KW - Epigenetik KW - Cytosin-Methylierung KW - Zebularin KW - adaptive Differenzierung KW - lokale Anpassung KW - Mikrosatelliten KW - Breitengrad KW - Ökokline KW - Populationsstruktur KW - invasiv KW - ruderal KW - nicht-einheimisch KW - Mitteleuropa KW - Deutschland KW - AFLP KW - MSAP KW - räumliche Autokorrelation KW - Genom-Scan Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-568844 ER - TY - GEN A1 - Eckert, Sebastian A1 - Norell, Jesper A1 - Miedema, Piter S. A1 - Beye, Martin A1 - Fondell, Mattis A1 - Quevedo, Wilson A1 - Kennedy, Brian A1 - Hantschmann, Markus A1 - Pietzsch, Annette A1 - van Kuiken, Benjamin E. A1 - Ross, Matthew A1 - Minitti, Michael P. A1 - Moeller, Stefan P. A1 - Schlotter, William F. A1 - Khalil, Munira A1 - Odelius, Michael A1 - Föhlisch, Alexander T1 - Untersuchung unabhängiger N‐H‐ und N‐C‐Bindungsverformungen auf ultrakurzen Zeitskalen mit resonanter inelastischer Röntgenstreuung T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - Die Femtosekundendynamik nach resonanten Photoanregungen mit optischen und Röntgenpulsen ermöglicht eine selektive Verformung von chemischen N‐H‐ und N‐C‐Bindungen in 2‐Thiopyridon in wässriger Lösung. Die Untersuchung der orbitalspezifischen elektronischen Struktur und ihrer Dynamik auf ultrakurzen Zeitskalen mit resonanter inelastischer Röntgenstreuung an der N1s‐Resonanz am Synchrotron und dem Freie‐Elektronen‐Laser LCLS in Kombination mit quantenchemischen Multikonfigurationsberechnungen erbringen den direkten Nachweis dieser kontrollierten photoinduzierten Molekülverformungen und ihrer ultrakurzen Zeitskala. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1121 KW - Photochemie KW - Protonierung KW - RIXS (resonante inelastische Röntgenstreuung) KW - Selektiver Bindungsbruch KW - Stickstoff Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-436688 SN - 1866-8372 IS - 1121 ER - TY - GEN A1 - Eckert, Sebastian A1 - Norell, Jesper A1 - Miedema, Piter S. A1 - Beye, Martin A1 - Fondell, Mattis A1 - Quevedo, Wilson A1 - Kennedy, Brian A1 - Hantschmann, Markus A1 - Pietzsch, Annette A1 - van Kuiken, Benjamin E. A1 - Ross, Matthew A1 - Minitti, Michael P. A1 - Moeller, Stefan P. A1 - Schlotter, William F. A1 - Khalil, Munira A1 - Odelius, Michael A1 - Föhlisch, Alexander T1 - Ultrafast Independent N-H and N-C Bond Deformation Investigated with Resonant Inelastic X-Ray Scattering T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - The femtosecond excited-state dynamics following resonant photoexcitation enable the selective deformation of N-H and N-C chemical bonds in 2-thiopyridone in aqueous solution with optical or X-ray pulses. In combination with multiconfigurational quantum-chemical calculations, the orbital-specific electronic structure and its ultrafast dynamics accessed with resonant inelastic X-ray scattering at the N 1s level using synchrotron radiation and the soft X-ray free-electron laser LCLS provide direct evidence for this controlled photoinduced molecular deformation and its ultrashort time-scale. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1115 KW - nitrogen KW - photochemistry KW - protonation KW - RIXS (resonant inelastic X-ray scattering) KW - selective bond cleavage Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-436873 SN - 1866-8372 IS - 1115 ER - TY - GEN A1 - Eckert, Sebastian A1 - Miedema, Piter A1 - Quevedo, Wilson A1 - O'Cinneide, B. A1 - Fondell, Mattis A1 - Beye, Martin A1 - Pietzsch, Annette A1 - Ross, Matthew R. A1 - Khalil, Munira A1 - Föhlisch, Alexander T1 - Molecular structures and protonation state of 2-Mercaptopyridine in aqueous solution T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - The speciation of 2-Mercaptopyridine in aqueous solution has been investigated with nitrogen 1s Near Edge X-ray Absorption Fine Structure spectroscopy and time dependent Density Functional Theory. The prevalence of distinct species as a function of the solvent basicity is established. No indications of dimerization towards high concentrations are found. The determination of different molecular structures of 2-Mercaptopyridine in aqueous solution is put into the context of proton-transfer in keto-enol and thione-thiol tautomerisms. (C) 2016 The Authors. Published by Elsevier B.V. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 953 KW - ray-emission-spectroscopy KW - x-ray KW - hydroxypyridine-pyridone KW - protomeric equilibria KW - self-association KW - CU(110) KW - valence Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-437473 SN - 1866-8372 IS - 953 SP - 103 EP - 106 ER - TY - JOUR A1 - Echeverría King, Luisa Fernanda A1 - Acuña Paez, Katherine A1 - Coronado Vargas, Carlos T1 - Enhancing Internationalisation for Peacebuilding among Higher Education Institutions in Post-Conflict Colombia JF - Potsdamer Beiträge zur Hochschulforschung N2 - This article collected the results of a qualitative study focused on Colombian Higher Education Institutions’ representatives partaking in the training ‘Internationalisation for Peacebuilding 2018’. The selected Higher Education Institutions and representatives were all located in regions acutely affected by the Colombian armed conflict, now experiencing multifaceted challenges and opportunities in a post-conflict scenario. Interviews with participants of the training were conducted to analyse the skills acquired and to identify possible improvements brought about by the training at the institutions. The article further identifies specific needs of the institutions, to be taken into account for future courses on internationalisation for higher education institutions. KW - internationalisation for higher education KW - capacity building KW - international cooperation KW - peacebuilding KW - quality in higher education Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-493500 SN - 978-3-86956-496-8 SN - 2192-1075 SN - 2192-1083 IS - 5 SP - 103 EP - 121 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - GEN A1 - Eccard, Jana A1 - Jokinen, Ilmari A1 - Ylönen, Hannu T1 - Loss of density-dependence and incomplete control by dominant breeders in a territorial species with density outbreaks N2 - Background A territory as a prerequisite for breeding limits the maximum number of breeders in a given area, and thus lowers the proportion of breeders if population size increases. However, some territorially breeding animals can have dramatic density fluctuations and little is known about the change from density-dependent processes to density-independence of breeding during a population increase or an outbreak. We suggest that territoriality, breeding suppression and its break-down can be understood with an incomplete-control model, developed for social breeders and social suppression. Results We studied density dependence in an arvicoline species, the bank vole, known as a territorial breeder with cyclic and non-cyclic density fluctuations and periodically high densities in different parts of its range. Our long-term data base from 38 experimental populations in large enclosures in boreal grassland confirms that breeding rates are density-regulated at moderate densities, probably by social suppression of subordinate potential breeders. We conducted an experiment, were we doubled and tripled this moderate density under otherwise the same conditions and measured space use, mortality, reproduction and faecal stress hormone levels (FGM) of adult females. We found that mortality did not differ among the densities, but the regulation of the breeding rate broke down: at double and triple densities all females were breeding, while at the low density the breeding rate was regulated as observed before. Spatial overlap among females increased with density, while a minimum territory size was maintained. Mean stress hormone levels were higher in double and triple densities than at moderate density. Conclusions At low and moderate densities, breeding suppression by the dominant breeders, But above a density-threshold (similar to a competition point), the dominance of breeders could not be sustained (incomplete control). In our experiment, this point was reached after territories could not shrink any further, while the number of intruders continued to increase with increasing density. Probably suppression becomes too costly for the dominants, and increasing number of other breeders reduces the effectiveness of threats. In wild populations, crossing this threshold would allow for a rapid density increase or population outbreaks, enabling territorial species to escape density-dependency. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 372 Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-400939 ER - TY - GEN A1 - Eccard, Jana A1 - Herde, Antje A1 - Schuster, Andrea C. A1 - Liesenjohann, Thilo A1 - Knopp, Tatjana A1 - Heckel, Gerald A1 - Dammhahn, Melanie T1 - Fitness, risk taking, and spatial behavior covary with boldness in experimental vole populations T2 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - Individuals of a population may vary along a pace-of-life syndrome from highly fecund, short-lived, bold, dispersive “fast” types at one end of the spectrum to less fecund, long-lived, shy, plastic “slow” types at the other end. Risk-taking behavior might mediate the underlying life history trade-off, but empirical evidence supporting this hypothesis is still ambiguous. Using experimentally created populations of common voles (Microtus arvalis)—a species with distinct seasonal life history trajectories—we aimed to test whether individual differences in boldness behavior covary with risk taking, space use, and fitness. We quantified risk taking, space use (via automated tracking), survival, and reproductive success (via genetic parentage analysis) in 8 to 14 experimental, mixed-sex populations of 113 common voles of known boldness type in large grassland enclosures over a significant part of their adult life span and two reproductive events. Populations were assorted to contain extreme boldness types (bold or shy) of both sexes. Bolder individuals took more risks than shyer ones, which did not affect survival. Bolder males but not females produced more offspring than shy conspecifics. Daily home range and core area sizes, based on 95% and 50% Kernel density estimates (20 ± 10 per individual, n = 54 individuals), were highly repeatable over time. Individual space use unfolded differently for sex-boldness type combinations over the course of the experiment. While day ranges decreased for shy females, they increased for bold females and all males. Space use trajectories may, hence, indicate differences in coping styles when confronted with a novel social and physical environment. Thus, interindividual differences in boldness predict risk taking under near-natural conditions and have consequences for fitness in males, which have a higher reproductive potential than females. Given extreme inter- and intra-annual fluctuations in population density in the study species and its short life span, density-dependent fluctuating selection operating differently on the sexes might maintain (co)variation in boldness, risk taking, and pace-of-life. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1258 KW - animal personality KW - automated radio telemetry KW - behavioral type KW - fitness KW - home range KW - Microtus arvalis KW - parentage KW - reproductive success Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-558866 SN - 1866-8372 SP - 1 EP - 15 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - GEN A1 - Eccard, Jana A1 - Herde, Antje T1 - Seasonal variation in the behaviour of a short-lived rodent N2 - Background: Short lived, iteroparous animals in seasonal environments experience variable social and environmental conditions over their lifetime. Animals can be divided into those with a "young-of-the-year" life history (YY, reproducing and dying in the summer of birth) and an "overwinter" life history (OW, overwintering in a subadult state before reproducing next spring). We investigated how behavioural patterns across the population were affected by season and sex, and whether variation in behaviour reflects the variation in life history patterns of each season. Applications of pace-of-life (POL) theory would suggest that long-lived OW animals are shyer in order to increase survival, and YY are bolder in order to increase reproduction. Therefore, we expected that in winter and spring samples, when only OW can be sampled, the animals should be shyer than in summer and autumn, when both OW and YY animals can be sampled. We studied common vole (Microtus arvalis) populations, which express typical, intra-annual density fluctuation. We captured a total of 492 voles at different months over 3 years and examined boldness and activity level with two standardised behavioural experiments. Results: Behavioural variables of the two tests were correlated with each other. Boldness, measured as short latencies in both tests, was extremely high in spring compared to other seasons. Activity level was highest in spring and summer, and higher in males than in females. Conclusion: Being bold in laboratory tests may translate into higher risk-taking in nature by being more mobile while seeking out partners or valuable territories. Possible explanations include asset-protection, with OW animals being rather old with low residual reproductive value in spring. Therefore, OW may take higher risks during this season. Offspring born in spring encounter a lower population density and may have higher reproductive value than offspring of later cohorts. A constant connection between life history and animal personality, as suggested by the POL theory, however, was not found. Nevertheless, correlations of traits suggest the existence of animal personalities. In conclusion, complex patterns of population dynamics, seasonal variation in life histories, and variability of behaviour due to asset-protection may cause complex seasonal behavioural dynamics in a population. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 403 KW - animal personalities KW - boldness KW - life history KW - pace-of-life KW - POL KW - phenotypic plasticity KW - common vole Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-401370 ER - TY - GEN A1 - Eccard, Jana A1 - Fey, Karen A1 - Caspers, Barbara A. A1 - Ylönen, Hannu T1 - Breeding state and season affect interspecific interaction types BT - indirect resource competition and direct interference T2 - Postprints der Universität Potsdam Mathematisch-Naturwissenschaftliche Reihe N2 - Indirect resource competition and interference are widely occurring mechanisms of interspecific interactions. We have studied the seasonal expression of these two interaction types within a two-species, boreal small mammal system. Seasons differ by resource availability, individual breeding state and intraspecific social system. Live-trapping methods were used to monitor space use and reproduction in 14 experimental populations of bank voles Myodes glareolus in large outdoor enclosures with and without a dominant competitor, the field vole Microtus agrestis. We further compared vole behaviour using staged dyadic encounters in neutral arenas in both seasons. Survival of the non-breeding overwintering bank voles was not affected by competition. In the spring, the numbers of male bank voles, but not of females, were reduced significantly in the competition populations. Bank vole home ranges expanded with vole density in the presence of competitors, indicating food limitation. A comparison of behaviour between seasons based on an analysis of similarity revealed an avoidance of costly aggression against opponents, independent of species. Interactions were more aggressive during the summer than during the winter, and heterospecific encounters were more aggressive than conspecific encounters. Based on these results, we suggest that interaction types and their respective mechanisms are not either–or categories and may change over the seasons. During the winter, energy constraints and thermoregulatory needs decrease direct aggression, but food constraints increase indirect resource competition. Direct interference appears in the summer, probably triggered by each individual’s reproductive and hormonal state and the defence of offspring against conspecific and heterospecific intruders. Both interaction forms overlap in the spring, possibly contributing to spring declines in the numbers of subordinate species. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 729 KW - rodents KW - aggression KW - seasonality KW - space use KW - winter biology Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-429398 SN - 1866-8372 IS - 729 SP - 623 EP - 633 ER - TY - GEN A1 - Eccard, Jana A1 - Dammhahn, Melanie A1 - Ylönen, Hannu T1 - The Bruce effect revisited BT - is pregnancy termination in female rodents an adaptation to ensure breeding success after male turnover in low densities? T2 - Postprints der Universität Potsdam Mathematisch-Naturwissenschaftliche Reihe N2 - Pregnancy termination after encountering a strange male, the Bruce effect, is regarded as a counterstrategy of female mammals towards anticipated infanticide. While confirmed in caged rodent pairs, no verification for the Bruce effect existed from experimental field populations of small rodents. We suggest that the effect may be adaptive for breeding rodent females only under specific conditions related to populations with cyclically fluctuating densities. We investigated the occurrence of delay in birth date after experimental turnover of the breeding male under different population composition in bank voles (Myodes glareolus) in large outdoor enclosures: one-male–multiple-females (n = 6 populations/18 females), multiple-males–multiple-females (n = 15/45), and single-male–single-female (MF treatment, n = 74/74). Most delays were observed in the MF treatment after turnover. Parallel we showed in a laboratory experiment (n = 205 females) that overwintered and primiparous females, the most abundant cohort during population lows in the increase phase of cyclic rodent populations, were more likely to delay births after turnover of the male than year-born and multiparous females. Taken together, our results suggest that the Bruce effect may be an adaptive breeding strategy for rodent females in cyclic populations specifically at low densities in the increase phase, when isolated, overwintered animals associate in MF pairs. During population lows infanticide risk and inbreeding risk may then be higher than during population highs, while also the fitness value of a litter in an increasing population is higher. Therefore, the Bruce effect may be adaptive for females during annual population lows in the increase phases, even at the costs of delaying reproduction. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 734 KW - breeding strategies KW - dip test KW - infanticide KW - Myodes voles KW - sexual conflict KW - sexual selection Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-432956 SN - 1866-8372 IS - 734 ER - TY - JOUR A1 - Ebseev, Boris S. T1 - Das Verfassungsgericht Russlands BT - Rechtsnatur und Funktionen JF - Verfassungsgerichtsbarkeit in der Russischen Föderation und in der Bundesrepublik Deutschland : Rundtischgespräch an der Moskauer Staatlichen Juristischen Kutafin-Universität am 9. und 10. Oktober 2012 Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-68410 SP - 21 EP - 33 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - CHAP A1 - Ebrecht, Angelika A1 - Laermann, Klaus T1 - Wie kommt Farbe zur Sprache? Y1 - 2005 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-9899 ER - TY - GEN A1 - Ebner von Eschenbach, Malte T1 - „Was ist Migration?“ BT - Risiken eines essentialistischen Migrationsbegriffs in der Erwachsenenbildung T2 - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe N2 - Auch wenn die Appelle, die Bedeutung von Migration für Erwachsenenbildung deutlicher wahrzunehmen, unüberhörbar sind, bleiben sie bezüglich kategorialer Arbeit bemerkenswert wenig beachtet. Grundlagentheoretisch motivierte Arbeit am Begriff „Migration“ ist in der Erwachsenenbildung noch lange nicht hinreichend ausgeschöpft. Auch wenn sich einzelne Studien mit ihm auseinandersetzen, besteht dennoch der Eindruck, dass kategoriale Klärungsversuche singulär bleiben. Die nicht einfache Aufgabe, den Begriff Migration vor seiner kategorialen Stilllegung zu bewahren, bleibt eine ernsthafte Herausforderung für erwachsenenpädagogische Migrationsforschung, sofern sie daran interessiert ist, die Risiken eines bisher essentialistischen Kurses ernsthaft ins Visier zu nehmen. N2 - While the calls to take more notice of the significance of migration for adult education are loud and clear, notably little attention is paid to them with regard to work on categories. In adult education, fundamental theoretical work on definitions of “migration” is still far from complete. Even though individual studies deal with the term, it seems that attempts to clarify categories remain scarce. If adult education research on migration has a genuine interest in examining the risks of the hitherto essentialist course, the none-too simple task of preserving the term “migration” from categorial closedown remains a serious challenge. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 605 KW - Migration KW - Essentialismus KW - Kontingenz KW - migration KW - essentialism KW - contingency perspective Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-428207 SN - 1866-8364 IS - 605 ER - TY - GEN A1 - Ebner von Eschenbach, Malte T1 - Im Grenzbereich des Räumlichen T1 - At the borderland of spatial research BT - Vorüberlegungen zu einer topologischen Perspektive in der erwachsenenpädagogischen Raumforschung BT - Preliminary considerations for a topological perspective on spatial research in adult education T2 - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe N2 - Im Zuge des Spatial Turn, der in der erwachsenenpädagogischen Raumforschung unübersehbar ist, wird eine Orientierung wahrnehmbar, die dafür plädiert, sich der Materialität räumlicher Arrangements wieder stärker zuzuwenden. Diese Tendenz der Re-Etablierung von Materialität birgt das Risiko, hinter den erreichten Stand des Spatial Turn zurückzukehren. Eine Möglichkeit, der sich anbahnenden ‚Raumfalle’ auszuweichen, könnte darin liegen, sich einer topologischen Perspektive zuzuwenden. Eine solche Perspektive eröffnet nicht nur die Möglichkeit, bisherige Rezeptionssperren im Spatial Turn aufzuheben und dadurch eine Perspektive einzuführen, mit der alternative Blickpunkte exploriert werden können. Im Kontrast zu raumontologischen Auffassungen privilegiert Topologie geradezu die Abstraktion von einer materiellen Verhaftetheit. Der Beitrag verfolgt zweierlei: Einerseits will er das Vokabular erwachsenenpädagogischer Raumforschung ausdifferenzieren, andererseits eine topologische Perspektive einführen, um eine theoretische Grundlage für weiterführende Überlegungen zu schaffen. N2 - With respect to the Spatial Turn, an orientation becomes visible which clearly refers to the materiality of spatial arrangements. This trend to re-establish materiality entails the risk of returning behind the state of the Spatial Turn achieved so far. One opportunity to avoid the “space trap” might be to turn to a topological perspective. Such a perspective in adult education opens up for removing blind spots in the reception of the Spatial Turn and thus for the introduction of a frame that can be used to explore alternative points of view. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 640 KW - Raumtheorie KW - spatial turn KW - Topologie KW - spatial theory Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-435040 SN - 1866-8364 IS - 640 ER - TY - JOUR A1 - Ebner, Martin A1 - Edelsbrunner, Sarah A1 - Hohla-Sejkora, Katharina A1 - Mair, Bettina A1 - Schön, Sandra A1 - Lipp, Silvia A1 - Steinkellner, Iris A1 - Stojcevic, Ivana A1 - Zwiauer, Charlotte ED - Meinel, Christoph ED - Schweiger, Stefanie ED - Staubitz, Thomas ED - Conrad, Robert ED - Alario Hoyos, Carlos ED - Ebner, Martin ED - Sancassani, Susanna ED - Żur, Agnieszka ED - Friedl, Christian ED - Halawa, Sherif ED - Gamage, Dilrukshi ED - Scott, Jeffrey ED - Kristine Jonson Carlon, May ED - Deville, Yves ED - Gaebel, Michael ED - Delgado Kloos, Carlos ED - von Schmieden, Karen T1 - Impact assessment of a MOOC platform BT - considerations, development, and results JF - EMOOCs 2023 : Post-Covid Prospects for Massive Open Online Courses - Boost or Backlash? N2 - In 2020, the project “iMooX – The MOOC Platform as a Service for all Austrian Universities” was launched. It is co-financed by the Austrian Ministry of Education, Science and Research. After half of the funding period, the project management wants to assess and share results and outcomes but also address (potential) additional “impacts” of the MOOC platform. Building upon work on OER impact assessment, this contribution describes in detail how the specific iMooX.at approach of impact measurement was developed. Literature review, stakeholder analysis, and problem-based interviews were the base for developing a questionnaire addressing the defined key stakeholder “MOOC creators”. The article also presents the survey results in English for the first time but focuses more on the development, strengths, and weaknesses of the selected methods. The article is seen as a contribution to the further development of impact assessment for MOOC platforms. KW - Digitale Bildung KW - Kursdesign KW - MOOC KW - Micro Degree KW - Online-Lehre KW - Onlinekurs KW - Onlinekurs-Produktion KW - digital education KW - e-learning KW - micro degree KW - micro-credential KW - online course creation KW - online course design KW - online teaching Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-624222 SP - 171 EP - 186 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Ebner, Martin A1 - Edelsbrunner, Sarah A1 - Hohla-Sejkora, Katharina A1 - Lipp, Silvia A1 - Schön, Sandra ED - Meinel, Christoph ED - Schweiger, Stefanie ED - Staubitz, Thomas ED - Conrad, Robert ED - Alario Hoyos, Carlos ED - Ebner, Martin ED - Sancassani, Susanna ED - Żur, Agnieszka ED - Friedl, Christian ED - Halawa, Sherif ED - Gamage, Dilrukshi ED - Scott, Jeffrey ED - Kristine Jonson Carlon, May ED - Deville, Yves ED - Gaebel, Michael ED - Delgado Kloos, Carlos ED - von Schmieden, Karen T1 - Role of MOOCs and Imoox for Austrian Universities BT - analysis of performance agreements and activities at imoox JF - EMOOCs 2023 : Post-Covid Prospects for Massive Open Online Courses - Boost or Backlash? N2 - This research paper provides an overview of the current state of MOOCs (massive open online courses) and universities in Austria, focusing on the national MOOC platform iMooX.at. The study begins by presenting the results of an analysis of the performance agreements of 22 Austrian public universities for the period 2022–2024, with a specific focus on the mention of MOOC activities and iMooX. The authors find that 12 of 22 (55 %) Austrian public universities use at least one of these terms, indicating a growing interest in MOOCs and online learning. Additionally, the authors analyze internal documentation data to share insights into how many universities in Austria have produced and/or used a MOOC on the iMooX platform since its launch in 2014. These findings provide a valuable measure of the current usage and monitoring of MOOCs and iMooX among Austrian higher education institutions. Overall, this research contributes to a better understanding of the current state of MOOCs and their integration within Austrian higher education. KW - Digitale Bildung KW - Kursdesign KW - MOOC KW - Micro Degree KW - Online-Lehre KW - Onlinekurs KW - Onlinekurs-Produktion KW - digital education KW - e-learning KW - micro degree KW - micro-credential KW - online course creation KW - online course design KW - online teaching Y1 - 2023 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-622134 SP - 77 EP - 84 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - BOOK A1 - Ebke, Thomas A1 - Zanfi, Caterina A1 - Krüger, Hans-Peter A1 - Sommer, Christian A1 - Viennet, Thomas A1 - Johannßen, Dennis A1 - Balzaretti, Ugo A1 - Toussaint Ondoua, Hervé A1 - Agard, Olivier A1 - Henckmann, Wolfhart A1 - Simonotti, Edoardo A1 - Hand, Annika A1 - Tavakkoli, Amirpasha A1 - Hackbarth, Daniel A1 - Edinger, Sebastian A1 - Schollmeyer, Justus A1 - von Kalckreuth, Moritz Alexander A1 - Schmieg, Gregor A1 - Batista Rates, Bruno A1 - Kressmann, Philipp A1 - Hilt, Annette A1 - van Buuren, Jasper A1 - Keusch, Juliane A1 - Guzun, Mădălina A1 - Bruff, Kyla A1 - Stahl, Marion A1 - Held, Lukas ED - Ebke, Thomas ED - Zanfi, Caterina T1 - Das Leben im Menschen oder der Mensch im Leben? T1 - La vie dans l’homme ou l’homme dans la vie? BT - Deutsch-Französische Genealogien zwischen Anthropologie und Anti-Humanismus BT - Généalogies franco-allemandes entre anthropologie et anti-humanisme N2 - In der Philosophie des 20. Jahrhunderts wird deutlich, dass es in Frankreich und in Deutschland voneinander abweichende Sichtweisen auf die Frage gibt, ob der Mensch eine "Sonderstellung" in der Dynamik des biologischen und geschichtlichen Lebens genießt. Während sich in Deutschland die Tradition eines anthropologischen Denkens neu formiert, ist in Frankreich eine scharfe Skepsis gegenüber dem Erbe des Humanismus charakteristisch. Die Beiträge dieses zweisprachigen Buches untersuchen diese deutsch-französische Konstellation von Fragen und Autoren, und aktualisieren die Reflexion auf die (Grenzen der) Singularität des Menschen. N2 - Dans la philosophie du 20e siècle, s'expriment en France et en Allemagne de fortes divergences quant à la question de savoir si l’homme jouit d’une «situation particulière» dans la dynamique de la vie biologique et historique. Alors qu’en Allemagne se renouvelle la tradition d’une pensée anthropologique, un fort scepticisme envers l'héritage humaniste caractérise la pensée française. Les contributions de ce livre bilingue examinent cette constellation de questions et d'auteurs franco-allemands et actualisent la réflexion autour (des limites) de la singularité de l'homme. Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-95409 SN - 978-3-86956-382-4 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Ebke, Thomas A1 - Zanfi, Caterina T1 - Das Leben im Menschen oder der Mensch im Leben? BT - Deutsch-Französische Genealogien zwischen Anthropologie und Anti-Humanismus JF - Das Leben im Menschen oder der Mensch im Leben? KW - Philosophie KW - Anthropologie KW - Anti-Humanismus KW - philosophy KW - anthropology KW - anti-humanism Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-395870 SN - 978-3-86956-382-4 SP - 11 EP - 28 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Ebke, Thomas T1 - «Dilettanten des Lebens» BT - Deutsch-Französische Brechungen der Anthropogenese in der Philosophie des 20. Jahrhunderts JF - Das Leben im Menschen oder der Mensch im Leben? KW - Anthropogenese KW - Philosophie KW - 20. Jahrhundert KW - 20th century KW - philosophy KW - anthropogenesis Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-396105 SN - 978-3-86956-382-4 SP - 285 EP - 338 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - GEN A1 - Ebinger, Falk A1 - Richter, Philipp T1 - Decentralizing for performance? BT - a quantitative assessment of functional reforms in the German Länder T2 - International review of administrative sciences N2 - In the last 10 years, the governments of most of the German Lander initiated administrative reforms. All of these ventures included the municipalization of substantial sets of tasks. As elsewhere, governments argue that service delivery by communes is more cost-efficient, effective and responsive. Empirical evidence to back these claims is inconsistent at best: a considerable number of case studies cast doubt on unconditionally positive appraisals. Decentralization effects seem to vary depending on the performance dimension and task considered. However, questions of generalizability arise as these findings have not yet been backed by more 'objective' archival data. We provide empirical evidence on decentralization effects for two different policy fields based on two studies. Thereby, the article presents alternative avenues for research on decentralization effects and matches the theoretical expectations on decentralization effects with more robust results. The analysis confirms that overly positive assertions concerning decentralization effects are only partially warranted. As previous case studies suggested, effects have to be looked at in a much more differentiated way, including starting conditions and distinguishing between the various relevant performance dimensions and policy fields. T3 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe - 92 KW - decentralization KW - de-concentration KW - federalism KW - local government KW - performance meas- urement KW - public service delivery KW - social and environmental administration Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-405158 ER - TY - GEN A1 - Ebinger, Falk A1 - Kuhlmann, Sabine A1 - Bogumil, Jörg T1 - Territorial reforms in Europe BT - effects on administrative performance and democratic participation T2 - Postprints der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe N2 - Territorial reform is the most radical and contested reorganisation of local government. A sound evaluation of the outcome of such reforms is hence an important step to ensure the legitimation of any decision on the subject. However, in our view the discourse on the subject appears to be one sided, focusing primarily on overall fiscal effects scrutinised by economists. The contribution of this paper is hence threefold: Firstly, we provide an overview off territorial reforms in Europe, with a special focus on Eastern Germany as a promising case for cross-country comparisons. Secondly, we provide an over-view of the analytical classifications of these reforms and context factors to be considered in their evaluation. And thirdly, we analyse the literature on qualitative performance effects of these reforms. The results show that territorial reforms have a significant positive impact on functional performance, while the effects on participation and integration are indeed ambivalent. In doing so, we provide substantial arguments for a broader, more inclusive discussion on the success of territorial reforms. T3 - Zweitveröffentlichungen der Universität Potsdam : Wirtschafts- und Sozialwissenschaftliche Reihe - 100 KW - municipal amalgamation effects KW - territorial reform KW - municipal mergers KW - local government performance KW - administrative reforms Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-420583 SN - 1867-5808 IS - 100 ER - TY - JOUR A1 - Ebert, Susanne A1 - Lowit, Anja T1 - Spontansprache bei englischsprachigen Parkinsonpatienten BT - Eine Untersuchung von Pausenverhalten und sprachlichen Kriterien JF - Spektrum Patholinguistik (Band 8) - Schwerpunktthema: Besonders behandeln? : Sprachtherapie im Rahmen primärer Störungsbilder KW - Patholinguistik KW - Sprachtherapie KW - geistige Behinderung KW - primär progessive Aphasie KW - patholinguistics KW - speech therapy KW - mental deficiency KW - primary progessive aphasia Y1 - 2015 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-79815 SP - 145 EP - 150 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Ebert, Sophia T1 - Lorenz Jäger: Walter Benjamin. Das Leben eines Unvollendeten / [rezensiert von] Sophia Ebert JF - PaRDES : Zeitschrift der Vereinigung für Jüdische Studien e. V. Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-417931 SP - 246 EP - 248 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Ebert, Christa T1 - Soziale Dimensionen des Trinkens in Venedikt Erofeevs Roman Moskva – Petuški JF - Russische Küche und kulturelle Identität Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-68100 SP - 415 EP - 431 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - GEN A1 - Ebert, Birgitta E. A1 - Lamprecht, Anna-Lena A1 - Steffen, Bernhard A1 - Blank, Lars M. T1 - Flux-P BT - automating metabolic flux analysis T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - Quantitative knowledge of intracellular fluxes in metabolic networks is invaluable for inferring metabolic system behavior and the design principles of biological systems. However, intracellular reaction rates can not often be calculated directly but have to be estimated; for instance, via 13C-based metabolic flux analysis, a model-based interpretation of stable carbon isotope patterns in intermediates of metabolism. Existing software such as FiatFlux, OpenFLUX or 13CFLUX supports experts in this complex analysis, but requires several steps that have to be carried out manually, hence restricting the use of this software for data interpretation to a rather small number of experiments. In this paper, we present Flux-P as an approach to automate and standardize 13C-based metabolic flux analysis, using the Bio-jETI workflow framework. Exemplarily based on the FiatFlux software, it demonstrates how services can be created that carry out the different analysis steps autonomously and how these can subsequently be assembled into software workflows that perform automated, high-throughput intracellular flux analysis of high quality and reproducibility. Besides significant acceleration and standardization of the data analysis, the agile workflow-based realization supports flexible changes of the analysis workflows on the user level, making it easy to perform custom analyses. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 1054 KW - 13C metabolic flux analysis KW - MFA KW - high-throughput analysis KW - scientific workflows KW - workflow management KW - Bio-jETI Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-476696 SN - 1866-8372 IS - 1054 SP - 872 EP - 890 ER - TY - GEN A1 - Eberle, Gerhard T1 - Zum Problem der Anzahl gemeinsamer Faktoren des Hamburg-Wechsler-Intelligenztests für Kinder (HAWIK) bei sogenannten lernbehinderten Sonderschulanwärtern T1 - On the problem of the number of common factors of the HAWIK in so-called slowlearners, candidates for remedial education N2 - Aufgrund der von Winkelmann und Schmalohr (1972) mitgeteilten Interkorrelationen der Subtests des HAWIK (außer Zahlennachsprechen), gewonnen an einer Stichprobe von N = 1020 sogenannten lernbehinderten Sonderschulanwärtern, wurde eine Reanalyse mit zwei unterschiedlichen faktorenanalytischen Techniken und zusätzlichen Kriterien zur Bestimmung der Zahl gemeinsamer Faktoren vorgenommen. Dabei wurde gezeigt, daß die von Winkelmann und Schmalohr (1972) ermittelte und von Schmalohr (1975) für die praktische Diagnostik empfohlene Lösung nicht invariant gegenüber verschiedenen faktorenanalytischen Techniken ist. Darüberhinaus genügt der dritte Faktor nicht dem sogenannten Fürntratt-Kriterium. Somit scheint lediglich die Extraktion von zwei Faktoren angemessen. Diese sind als Verbal- und Handlungsfaktor interpretierbar. Sie korrelieren in der gleichen Größenordnung miteinander wie der Verbal- und Handlungsteil des HAWIK und konfirmieren so die Annahme eines Generalfaktors. Die von Schmalohr für die Praxis empfohlene Prozedur zur Schätzung von Faktorwerten, welche sich auf eine orthogonale dreidimensionale Struktur bezieht, muß auf dem Hintergrund dieser Untersuchung als nicht adäquat bezeichnet werden. N2 - On the basis of the information given by Winkelmann and Schmalohr (1972) in the intercorrelations of the subtests of the HAWIK (except digit span) obtained from a random sample of N = 1020 so-called slow learners (candidates for special schools) a new analysis was made with two different factor analysis techniques and additional criteria for the determination of the number of common factors. It was thus shown that the result ascertained by Winkelmann and Schmalohr (1972) and recommended for practical diagnostics by Schmalohr (1975) does not remain invariable in the face of different factor analysis techniques. In addition to that the third factor does not come up to the so-called Fürntratt criterion. Therefore the extraction of only two factors seems appropriate. These can be interpreted as verbal factor and performance factor. They are correlated in the same way as the verbal and performance parts of the HAWIK and so confirm the presumption of a general factor. The procedure for practical use recommended by Schmalohr for the estimate of factor scores, which refers to an orthogonal three dimensional structure, must - on the basis of this research - be termed inadequate. Y1 - 1978 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-54558 ER - TY - JOUR A1 - Eberhardt, Daniel T1 - Der Einfluss der Allgemeinen Erklärung der Menschenrechte auf die Grundrechtsberatung des Grundgesetzes im Parlamentarischen Rat JF - MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen N2 - I. Einleitung II. Die Entstehungsbedingungen III. Der Parlamentarische Rat IV. Die Arten der Einflussnahmen V. Resümee Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-40087 SN - 1434-2820 VL - 14 IS - 2 SP - 162 EP - 172 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - RPRT A1 - Eberhardt, Björn T1 - Public pensions in the U.S. BT - fitting social security for the future N2 - Contents: The Public Old Age Insurance of the U.S. -Historical overview -Technical details -Individual equity and social adequacy The Economic Problem of Old Age -Risks and economic security -Old age, retirement, and idividual precaution -Insurance markets, market failures, and social insurance -Options for public pension systems The Problems of Social Security -The financial balance of OASDI -Causes of the long-run problems -Rates of return -Conclusion - The case for Social Security reform Proposed Remedies -Full, partial, or no privatization? -The President's Commission to Strengthen Social Security -Kotlikoff's Personal Security System -The Diamond-Orszag Three-Part plan T3 - Finanzwissenschaftliche Diskussionsbeiträge - 49 Y1 - 2005 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-9058 ER - TY - GEN A1 - Ebenhöh, Oliver A1 - Handorf, Thomas T1 - Functional classification of genome-scale metabolic networks N2 - We propose two strategies to characterize organisms with respect to their metabolic capabilities. The first, investigative, strategy describes metabolic networks in terms of their capability to utilize different carbon sources, resulting in the concept of carbon utilization spectra. In the second, predictive, approach minimal nutrient combinations are predicted from the structure of the metabolic networks, resulting in a characteristic nutrient profile. Both strategies allow for a quantification of functional properties of metabolic networks, allowing to identify groups of organisms with similar functions. We investigate whether the functional description reflects the typical environments of the corresponding organisms by dividing all species into disjoint groups based on whether they are aerotolerant and/or photosynthetic. Despite differences in the underlying concepts, both measures display some common features. Closely related organisms often display a similar functional behavior and in both cases the functional measures appear to correlate with the considered classes of environments. Carbon utilization spectra and nutrient profiles are complementary approaches toward a functional classification of organism-wide metabolic networks. Both approaches contain different information and thus yield different clusterings, which are both different from the classical taxonomy of organisms. Our results indicate that a sophisticated combination of our approaches will allow for a quantitative description reflecting the lifestyles of organisms. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - paper 129 Y1 - 2009 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-44975 ER - TY - GEN A1 - Ebel, Kenny A1 - Bald, Ilko T1 - Length and Energy Dependence of Low-Energy Electron-Induced Strand Breaks in Poly(A) DNA T2 - Postprints der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe N2 - The DNA in living cells can be effectively damaged by high-energy radiation, which can lead to cell death. Through the ionization of water molecules, highly reactive secondary species such as low-energy electrons (LEEs) with the most probable energy around 10 eV are generated, which are able to induce DNA strand breaks via dissociative electron attachment. Absolute DNA strand break cross sections of specific DNA sequences can be efficiently determined using DNA origami nanostructures as platforms exposing the target sequences towards LEEs. In this paper, we systematically study the effect of the oligonucleotide length on the strand break cross section at various irradiation energies. The present work focuses on poly-adenine sequences (d(A₄), d(A₈), d(A₁₂), d(A₁₆), and d(A₂₀)) irradiated with 5.0, 7.0, 8.4, and 10 eV electrons. Independent of the DNA length, the strand break cross section shows a maximum around 7.0 eV electron energy for all investigated oligonucleotides confirming that strand breakage occurs through the initial formation of negative ion resonances. When going from d(A₄) to d(A₁₆), the strand break cross section increases with oligonucleotide length, but only at 7.0 and 8.4 eV, i.e., close to the maximum of the negative ion resonance, the increase in the strand break cross section with the length is similar to the increase of an estimated geometrical cross section. For d(A₂₀), a markedly lower DNA strand break cross section is observed for all electron energies, which is tentatively ascribed to a conformational change of the dA₂₀ sequence. The results indicate that, although there is a general length dependence of strand break cross sections, individual nucleotides do not contribute independently of the absolute strand break cross section of the whole DNA strand. The absolute quantification of sequence specific strand breaks will help develop a more accurate molecular level understanding of radiation induced DNA damage, which can then be used for optimized risk estimates in cancer radiation therapy. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 814 KW - DNA origami KW - DNA radiation damage KW - DNA strand breaks KW - low-energy electrons KW - sequence dependence Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-444125 SN - 1866-8372 IS - 814 ER - TY - THES A1 - Ebel, Kenny T1 - Quantification of low-energy electron induced single and double strand breaks in well-defined DNA sequences using DNA origami nanostructures T1 - Quantifizierung von DNA Einzel- und Doppelstrangbrüchen definierter DNA Sequenzen induziert durch niederenergetische Elektronen unter Verwendung von DNA Origami Nanostrukturen N2 - Ionizing radiation is used in cancer radiation therapy to effectively damage the DNA of tumors leading to cell death and reduction of the tumor tissue. The main damage is due to generation of highly reactive secondary species such as low-energy electrons (LEE) with the most probable energy around 10 eV through ionization of water molecules in the cells. A simulation of the dose distribution in the patient is required to optimize the irradiation modality in cancer radiation therapy, which must be based on the fundamental physical processes of high-energy radiation with the tissue. In the present work the accurate quantification of DNA radiation damage in the form of absolute cross sections for LEE-induced DNA strand breaks (SBs) between 5 and 20 eV is done by using the DNA origami technique. This method is based on the analysis of well-defined DNA target sequences attached to DNA origami triangles with atomic force microscopy (AFM) on the single molecule level. The present work focuses on poly-adenine sequences (5'-d(A4), 5'-d(A8), 5'-d(A12), 5'-d(A16), and 5'- d(A20)) irradiated with 5.0, 7.0, 8.4, and 10 eV electrons. Independent of the DNA length, the strand break cross section shows a maximum around 7.0 eV electron energy for all investigated oligonucleotides confirming that strand breakage occurs through the initial formation of negative ion resonances. Additionally, DNA double strand breaks from a DNA hairpin 5'-d(CAC)4T(Bt-dT)T2(GTG)4 are examined for the first time and are compared with those of DNA single strands 5'-d(CAC)4 and 5'- d(GTG)4. The irradiation is made in the most likely energy range of 5 to 20 eV with an anionic resonance maximum around 10 eV independently of the DNA sequence. There is a clear difference between σSSB and σDSB of DNA single and double strands, where the strand break for ssDNA are always higher in all electron energies compared to dsDNA by the factor 3. A further part of this work deals with the characterization and analysis of new types of radiosensitizers used in chemoradiotherapy, which selectively increases the DNA damage upon radiation. Fluorinated DNA sequences with 2'-fluoro-2'-deoxycytidine (dFC) show an increased sensitivity at 7 and 10 eV compared to the unmodified DNA sequences by an enhancement factor between 2.1 and 2.5. In addition, light-induced oxidative damage of 5'-d(GTG)4 and 5'-d((CAC)4T(Bt-dT)T2(GTG)4) modified DNA origami triangles by singlet oxygen 1O2 generated from three photoexcited DNA groove binders [ANT994], [ANT1083] and [Cr(ddpd)2][BF4]3 illuminated in different experiments with UV-Vis light at 430, 435 and 530 nm wavelength is demonstrated. The singlet oxygen induced generation of DNA damage could be detected in both aqueous and dry environments for [ANT1083] and [Cr(ddpd)2][BF4]3. N2 - In der Radiotherapie wird ionisierende Strahlung verwendet, um die DNA in Tumorzellen wirksam zu schädigen. Der Hauptschaden ist auf die Erzeugung hochreaktiver Sekundärspezies wie niederenergetische Elektronen (LEE) durch Ionisierung von Wassermolekülen in den Zellen mit einer wahrscheinlichsten Energie um 10 eV zurückzuführen. Die Optimierung der Bestrahlungsmodalität in der Strahlentherapie beruht auf Simulationen der Dosisverteilung im menschlichen Körper, die auf fundamentale physikalische Prozesse zwischen hochenergetischer Strahlung mit dem Gewebe basieren. Die vorliegende Arbeit beschäftigt sich mit der exakten Quantifizierung von LEE-induzierten DNA-Strahlenschäden in Form von absoluten Wirkungsquerschnitten σSB für DNA-Strangbrüche (SBs) zwischen 5 und 20 eV mit Hilfe der DNA-Origami-Technik. Diese Methode verwendet wohl definierte DNA-Zielsequenzen gebunden an DNA-Origami Nanostrukturen, dessen Schädigung durch die Rasterkraftmikroskopie auf Einzelmolekülniveau untersucht werden kann. Ein großer Fokus liegt auf den Bestrahlungsexperimenten von Polyadeninsequenzen ((5'-d(A4), 5'-d(A8), 5'-d(A12), 5'-d(A16) und 5'-d(A20) unterschiedlicher Nukleotidanzahl) bestrahlt mit 5.0, 7.0, 8.4 und 10 eV Elektronen. Unabhängig von der DNA-Nukleotidlänge zeigen die Strangbruchquerschnitte für alle untersuchten Oligonukleotide ein Maximum um 7.0 eV Elektronenenergie. Diese DNA-Strangbrüche sind durch die anfängliche Bildung negativer Ionenresonanzen bedingt. Zusätzlich werden erstmals Wirkungsquerschnitte für DNA-Doppelstrangbrüche σDSB spezifischer Sequenz (5'- d(CAC)4T(Bt-dT)T2(GTG)4) ermittelt und mit den Wirkungsquerschnitten von DNA-Einzelstrangbrüchen σSSB (5'- d(CAC)4 und 5'-d(GTG)4) verglichen. Die Bestrahlungen erfolgen im Energiebereich von 5 bis 20 eV mit einem anionischen Resonanzmaximum um 10 eV unabhängig von der DNA-Sequenz. Es wird ein deutlicher Unterschied zwischen σSSB und σDSB von DNA-Einzel- und Doppelstrangbrüchen im Verhältnis von 3 zu 1 erhalten. Des Weiteren befasst sich ein großer Forschungsbereich in der Radiochemotherapie mit der Charakterisierung und Analyse neuer Radiosensibilisatoren, die den DNA-Schaden bei Bestrahlung selektiv erhöhen können. Dafür werden DNA-Sequenzen mit 2'-Fluor-2'-desoxycytidin (dFC) modifiziert, die eine erhöhte Empfindlichkeit mit einem Verstärkungsfaktor zwischen 2.1 und 2.5 bei 7 und 10 eV im Vergleich zu den nicht modifizierten DNA-Sequenzen zeigen. Außerdem können mit der DNA-Origami-Technik lichtinduzierte oxidative DNA-Schädigungen von 5'-d(GTG)4 und 5'- d(CAC)4T(Bt-dT)T2(GTG)4 durch hochreaktivem Singulett-Sauerstoff 1O2 untersucht werden. Der Singulett-Sauerstoff wird durch photoaktive DNA-Binder [ANT994], [ANT1083] und [Cr(ddpd)2][BF4]3 mit UV-Vis Licht bei Wellenlängen von 430, 435 und 530 nm gebildet, die sich auf den DNA-Origami Nanostrukturen nahe den Zielsequenzen zufällig binden. Die Erzeugung von DNA-Schäden konnte sowohl in wässriger als auch in kondensierter Umgebung durch [ANT1083] und [Cr(ddpd)2][BF4]3 nachgewiesen werden. KW - DNA damage KW - single strand break KW - double strand break KW - ionizing radiation KW - low-energy electrons KW - DNA origami KW - DNA origami KW - Einzelstrangbruch KW - Doppelstrangbruch KW - niederenergetische Elektronen KW - DNA Schädigung KW - ionisierende Strahlung Y1 - 2021 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-504499 ER - TY - GEN A1 - D’Souza, Shanthie Mariet T1 - India in Post-ISAF Afghanistan N2 - Indien macht sich Sorgen, ob seine betont nichtmilitärische Politik in Afghanistan nach Abzug der ISAF-Truppen Früchte trägt. Als einer der größten Entwicklungshilfegeber hat Indien nach Vertreibung der Taliban 2001 mehr als zwei Mrd. US-Dollar in das Land gepumpt und der Nachfrage nach militärischer Hilfe bislang erfolgreich getrotzt. Unter Umgehung des einflussreichen Grenzlandes Pakistan will Indien von den Bodenschätzen Afghanistans, seiner strategischen Lage und seinem Wirtschafts- und Handelspotenzial profitieren. Die Angst vor der Rückkehr der Taliban sitzt jedoch tief und die eigene Verwundbarkeit ist groß, wie die Bombenangriffe 2008 und 2009 auf indische Botschaften in Afghanistan zeigten. Langfristig wird Indien seine Interessen in diesem Raum nur über einen multilateralen Ansatz sichern können. KW - Afghanistan KW - Indien KW - Pakistan Y1 - 2014 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-69929 ER - TY - JOUR A1 - D’Amato, Gianni T1 - Renaissance des Bürgers JF - WeltTrends-Papiere N2 - Inhalt: Geteilte Demokratie ; Werte und Praxis ; Spiegel der Forschung ; Differenz und Homogenität ; Das Ende der Assimilation ; Im gemeinsamen Interesse ; Literaturverzeichnis KW - Politische Theorie KW - Migration KW - Integration KW - Bürgerschaft Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-63445 SN - 1864-0656 IS - 19 SP - 60 EP - 68 PB - Universitätsverlag Potsdam CY - Potsdam ER -