@article{Damaschun2021, author = {Damaschun, Ferdinand}, title = {Christian Gottfried Ehrenberg und die Entwicklung der Mikroskop-Technik im 19. Jahrhundert}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515218}, pages = {119 -- 134}, year = {2021}, abstract = {Ab Mitte der 1820er Jahre erfuhr die Mikroskop- Technik eine st{\"u}rmische Entwicklung. Dadurch, dass es gelang, nach und nach die optischen Fehler zu korrigieren, verbesserte sich die Aufl{\"o}sung bis zum Ende des Jahrhunderts um den Faktor 10 von 3 μm auf 0,3 μm. Um 1820 begann Christian Gottfried Ehrenberg mit mikroskopischen Untersuchungen. Er nutzte zun{\"a}chst ein einfaches N{\"u}rnberger Mikroskop. 1832 erwarb er ein Mikroskop aus der Berliner Werkstatt von Pistor \& Schiek, das er dann zeitlebens nutzte. Ein Vergleich der Leistungsf{\"a}higkeit seines Instruments mit der f{\"u}r seine Untersuchungen notwendigen Aufl{\"o}sung zeigt, dass es f{\"u}r seine Untersuchungen vollkommen gen{\"u}gte. F{\"u}r seine Untersuchungsobjekte entwickelte er Pr{\"a}parationstechniken und Aufbewahrungsmethoden f{\"u}r die Dauerpr{\"a}parate. Da er auch die mikroskopischen Abbildungen bis hin zu den Vorlagen f{\"u}r die Kupfertafeln selbst anfertigte, behielt er den gesamten Prozess von der Pr{\"a}paration bis zum Druck der Ergebnisse stets in der Hand.}, language = {de} } @article{Boehme2021, author = {B{\"o}hme, Katrin}, title = {Das große Ganze. Christian Gottfried Ehrenberg und die Gesellschaft Naturforschender Freunde zu Berlin}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515226}, pages = {155 -- 169}, year = {2021}, abstract = {Als langj{\"a}hriges und aktives Mitglied der Gesellschaft Naturforschender Freunde zu Berlin bestimmte Ehrenberg ihre Aktivit{\"a}ten und ihr Ansehen maßgeblich mit. Seine Beitr{\"a}ge zu den Sitzungen und Schriften und seine Rolle als Bewohner des gesellschaftseigenen Hauses f{\"o}rderten in der GNF sowohl Fortschritt als auch Best{\"a}ndigkeit. Das Ziel der Naturgeschichte des 18. Jahrhunderts, also die Entdeckung, Beschreibung und Bewahrung m{\"o}glichst aller Organismen- und Gesteinsarten, wurde in der GNF bis in die zweite H{\"a}lfte des 19. Jahrhunderts tradiert. Ehrenbergs wissenschaftliche Leistungen, insbesondere seine zahlreichen Entdeckungen mit Hilfe des Mikroskops, stehen ganz in dieser Tradition.}, language = {de} } @article{Ludewig2021, author = {Ludewig, Anna-Dorothea}, title = {Aus dem »chassidischen St{\"u}bchen«}, series = {Briefe als Laboratorium der Literatur im deutsch-j{\"u}dischen Kontext : schriftliche Dialoge, epistolare Konstellationen und poetologische Diskurse}, journal = {Briefe als Laboratorium der Literatur im deutsch-j{\"u}dischen Kontext : schriftliche Dialoge, epistolare Konstellationen und poetologische Diskurse}, publisher = {V\&R unipress}, address = {G{\"o}ttingen}, isbn = {978-3-8471-1296-9}, pages = {167 -- 182}, year = {2021}, language = {de} } @article{MatternPudellLaskinetal.2021, author = {Mattern, M. and Pudell, Jan-Etienne and Laskin, G. and von Reppert, A. and Bargheer, Matias}, title = {Analysis of the temperature- and fluence-dependent magnetic stress in laser-excited SrRuO3}, series = {Structural Dynamics}, journal = {Structural Dynamics}, issn = {2329-7778}, doi = {10.1063/4.0000072}, pages = {9}, year = {2021}, abstract = {We use ultrafast x-ray diffraction to investigate the effect of expansive phononic and contractive magnetic stress driving the picosecond strain response of a metallic perovskite SrRuO3 thin film upon femtosecond laser excitation. We exemplify how the anisotropic bulk equilibrium thermal expansion can be used to predict the response of the thin film to ultrafast deposition of energy. It is key to consider that the laterally homogeneous laser excitation changes the strain response compared to the near-equilibrium thermal expansion because the balanced in-plane stresses suppress the Poisson stress on the picosecond timescale. We find a very large negative Gr{\"u}neisen constant describing the large contractive stress imposed by a small amount of energy in the spin system. The temperature and fluence dependence of the strain response for a double-pulse excitation scheme demonstrates the saturation of the magnetic stress in the high-fluence regime.}, language = {en} } @article{KabothBahrBahrZeedenetal.2021, author = {Kaboth-Bahr, Stefanie and Bahr, Andr{\´e} and Zeeden, Christian and Yamoah, Kweku A. and Lone, Mahjoor Ahmad and Chuang, Chih-Kai and L{\"o}wemark, Ludvig and Wei, Kuo-Yen}, title = {A tale of shifting relations}, series = {Scientific Reports}, volume = {11}, journal = {Scientific Reports}, publisher = {Macmillan Publishers Limited, part of Springer Nature}, address = {London}, issn = {2045-2322}, doi = {10.1038/s41598-021-85444-7}, pages = {10}, year = {2021}, abstract = {Understanding the dynamics between the East Asian summer (EASM) and winter monsoon (EAWM) is needed to predict their variability under future global warming scenarios. Here, we investigate the relationship between EASM and EAWM as well as the mechanisms driving their variability during the last 10,000 years by stacking marine and terrestrial (non-speleothem) proxy records from the East Asian realm. This provides a regional and proxy independent signal for both monsoonal systems. The respective signal was subsequently analysed using a linear regression model. We find that the phase relationship between EASM and EAWM is not time-constant and significantly depends on orbital configuration changes. In addition, changes in the Atlantic Meridional Overturning circulation, Arctic sea-ice coverage, El Ni{\~n}o-Southern Oscillation and Sun Spot numbers contributed to millennial scale changes in the EASM and EAWM during the Holocene. We also argue that the bulk signal of monsoonal activity captured by the stacked non-speleothem proxy records supports the previously argued bias of speleothem climatic archives to moisture source changes and/or seasonality.}, language = {en} } @article{SchubarthSpeck2021, author = {Schubarth, Wilfried and Speck, Karsten}, title = {Ergebnisse zur Einsch{\"a}tzung des Referendariatsaus Sicht aller Akteure}, publisher = {Waxmann}, address = {M{\"u}nster}, isbn = {978-3-8309-4332-7}, pages = {254}, year = {2021}, language = {de} } @book{OPUS4-50023, title = {Local Integration of Migrants Policy}, series = {Palgrave Studies in Sub-National Governance}, journal = {Palgrave Studies in Sub-National Governance}, editor = {Franzke, Jochen and de la Fuente, Jos{\´e} M. Ruano}, publisher = {Palgrave Macmillan}, address = {Cham}, isbn = {978-3-030-50979-8}, issn = {2523-8256}, doi = {10.1007/978-3-030-50979-8}, pages = {XXV, 350}, year = {2021}, abstract = {This book presents an overview of European migration policy and the various institutional arrangements within and between various actors, such as local councils, local media, local economies, and local civil society initiatives. Both the role of local authorities in this policy field and their cooperation with civil society initiatives or networks are under-explored topics for research. In response, this book provides a range of detailed case studies focusing on the six main groups of national and administrative traditions in Europe: Germanic, Scandinavian, Napoleonic, Southeastern European, Central-Eastern European and Anglo-Saxon.}, language = {en} } @article{FranzkedelaFuente2021, author = {Franzke, Jochen and de la Fuente, Jos{\´e} M. Ruano}, title = {New Challenges in Local Migrant Integration Policy in Europe}, series = {Local Integration of Migrants Policy}, journal = {Local Integration of Migrants Policy}, publisher = {Palgrave Macmillan}, address = {Cham}, isbn = {978-3-030-50978-1}, issn = {2523-8248}, doi = {10.1007/978-3-030-50979-8_1}, pages = {1 -- 9}, year = {2021}, abstract = {In this introductory chapter, the editors describe the main theoretical basis of analysis of this book and the methodological approach. The core of this book consists of 14 country-specific chapters, which allow a European comparison and show the increasing variance in migration policy approaches within and between European countries. The degree of local autonomy, the level of centralisation and the traditional forms of migration policy are factors that especially influence the possibilities for local authorities to formulate their own integration policies.}, language = {en} } @article{Franzke2021, author = {Franzke, Jochen}, title = {Germany: From Denied Immigration to Integration of Migrants}, series = {Local Integration of Migrants Policy}, journal = {Local Integration of Migrants Policy}, publisher = {Palgrave Macmillan}, address = {Cham}, isbn = {978-3-030-50978-1}, issn = {2523-8248}, doi = {10.1007/978-3-030-50979-8_7}, pages = {107 -- 121}, year = {2021}, abstract = {The chapter begins with a brief historical overview of Germany's transition in the twentieth and twenty-first century from a transit and emigration country to one of immigration. The next part of this chapter looks at the challenges and problems facing German immigration policy within a multi-level federal system. Finally, the chapter gives an analysis of some of the trends in German migration policy since the refugee crisis in 2015, such as changes in the party system and in the concepts underlying migration policies to better manage, control and limit immigration to Germany.}, language = {en} } @article{Franzke2021, author = {Franzke, Jochen}, title = {Integrating Immigrants: Capacities and Challenges for Local Authorities in Europe}, series = {Local Integration of Migrants Policy}, journal = {Local Integration of Migrants Policy}, publisher = {Palgrave Macmillan}, address = {Cham}, isbn = {978-3-030-50978-1}, issn = {2523-8248}, doi = {10.1007/978-3-030-50979-8_17}, pages = {311 -- 333}, year = {2021}, abstract = {This chapter focuses on the relationship between public opinion on migration and its media coverage. Different explanatory models, including individual characteristics, cultural factors and the impact of media and politics, have been proposed to explain public attitudes towards migrants. Understanding the local context is important, as the shares of migrants living in each region and city vary considerably. Providing correct statistical information, stressing the diversity of current migration patterns in Europe and taking part in media and public discussions are ways in which to impact public attitudes at the local level.}, language = {en} } @article{FranzkedelaFuente2021, author = {Franzke, Jochen and de la Fuente, Jos{\´e} M. Ruano}, title = {Conclusions: An Overview of Local Migrant Integration Policies in Europe}, series = {Local Integration of Migrants Policy}, journal = {Local Integration of Migrants Policy}, publisher = {Palgrave Macmillan}, address = {Cham}, isbn = {978-3-030-50978-1}, issn = {2523-8248}, doi = {10.1007/978-3-030-50979-8_18}, pages = {335 -- 344}, year = {2021}, abstract = {As expected, the traditions of national-state migration policies continue to play a very important role, path-dependence in this policy field remains high. The distribution of competences in migration policy and the integration of migrants in the nation states continues to be very different. When implementing integration strategies at grassroots level, the respective policies should be tailored to the profile of both the local migrant community and the native population. Besides better migration management in local administration and the interaction of top-down and bottom-up efforts to integrate migrants is of importance.}, language = {en} } @article{SchenckHarischDietrichetal.2021, author = {Schenck, Marcia C. and Harisch, Immanuel R. and Dietrich, Anne and Burton, Eric}, title = {Introduction}, series = {Navigating Socialist Encounters}, journal = {Navigating Socialist Encounters}, publisher = {de Gruyter}, address = {Oldenburg}, isbn = {978-3-11-062354-3}, doi = {10.1515/9783110623543-001}, pages = {1 -- 58}, year = {2021}, language = {en} } @article{SchenckRaposo2021, author = {Schenck, Marcia C. and Raposo, Francisca}, title = {Socialist Encounters at the School of Friendship}, series = {Navigating Socialist Encounters}, journal = {Navigating Socialist Encounters}, publisher = {de Gruyter}, address = {Oldenburg}, isbn = {978-3-11-062354-3}, doi = {10.1515/9783110623543-009}, pages = {235 -- 246}, year = {2021}, language = {en} } @article{AlbertoSchenck2021, author = {Alberto, Ibraimo and Schenck, Marcia C.}, title = {Paths Are Made by Walking}, series = {Navigating Socialist Encounters}, journal = {Navigating Socialist Encounters}, publisher = {de Gruyter}, address = {Oldenburg}, isbn = {978-3-11-062354-3}, doi = {10.1515/9783110623543-010}, pages = {247 -- 262}, year = {2021}, language = {en} } @article{Pittel2021, author = {Pittel, Harald}, title = {Ali Smith's 'Coming-of-Age' in the age of Brexit}, series = {Brexit and Beyond: Nation and Identity}, journal = {Brexit and Beyond: Nation and Identity}, publisher = {Narr}, address = {T{\"u}bingen}, isbn = {978-3-8233-8414-4}, pages = {121 -- 144}, year = {2021}, language = {en} } @inproceedings{Stillmark2021, author = {Stillmark, Hans-Christian}, title = {Mythosgestaltung und Genrewahl in Hebbels Tragikom{\"o}die „Ein Trauerspiel in Sizilien"}, series = {Drama, Mythos und Geschichte. Zu Mythoskonzeptionen in den Dramen Friedrich Hebbels}, booktitle = {Drama, Mythos und Geschichte. Zu Mythoskonzeptionen in den Dramen Friedrich Hebbels}, editor = {Langner, Martin-Maximilian}, publisher = {Weidler Buchverlag}, address = {Berlin}, isbn = {978-3-89693-761-2}, pages = {147 -- 160}, year = {2021}, abstract = {Der Beitrag geht mythischen Bez{\"u}gen in Hebbels Zeitst{\"u}ck "Ein Trauerspiel in Sizilien" nach und entdeckt diese in Bau, Personengestaltung und Symbolik.}, language = {de} } @phdthesis{vonKalckreuth2021, author = {von Kalckreuth, Moritz Alexander}, title = {Philosophie der Personalit{\"a}t}, publisher = {Meiner}, address = {Hamburg}, isbn = {978-3-7873-4026-2}, pages = {328}, year = {2021}, abstract = {Die Philosophie der Person tritt mit dem Anspruch an, unser Selbstverst{\"a}ndnis als Individuen artikulieren zu wollen. Wird die g{\"a}ngige Lesart von Personen als rationalen, selbstbewussten Individuen diesem Anspruch wirklich gerecht? In Auseinandersetzung mit unterschiedlichen Ans{\"a}tzen der Gegenwart arbeitet Moritz von Kalckreuth neben der rationalen auch die leibliche, emotionale und soziokulturelle Dimension von Personalit{\"a}t heraus und fragt nach der M{\"o}glichkeit, sie alle in einem „Syntheseversuch" zusammenzuf{\"u}hren. Im Anschluss an Helmuth Plessners Philosophische Anthropologie, Nicolai Hartmanns Neue Ontologie und Max Schelers Ph{\"a}nomenologie lassen sich verschiedene Lesarten von Geist gewinnen, die sich f{\"u}r eine solche Verkn{\"u}pfung der einzelnen Dimensionen von Personalit{\"a}t besonders eignen.}, language = {de} } @book{Rein2021, author = {Rein, Katharina}, title = {Gothic Cinema}, series = {Genrediskurse}, journal = {Genrediskurse}, publisher = {Springer}, address = {Wiesbaden}, isbn = {978-3-658-33204-4}, issn = {2522-0276}, doi = {10.1007/978-3-658-33205-1}, pages = {VII, 221}, year = {2021}, abstract = {Als erste deutschsprachige Einf{\"u}hrung in das Gothic Cinema stellt dieser Band ein im deutschsprachigen Raum bisher kaum etabliertes und wenig erforschtes Filmgenre vor. Er begreift Gothic Cinema als eine Form inoffizieller Historiographie, die einen Blick nicht nur auf die Geschichte des Films und seiner Technik, sondern auch auf Moralvorstellungen, Geschlechterverh{\"a}ltnisse, kollektive {\"A}ngste oder {\"a}sthetische Str{\"o}mungen zul{\"a}sst. Auf eine Abgrenzung und Bestimmung des Begriffs und der zentralen Elemente des Gothic folgt ein umfassender historischer {\"U}berblick von 1896 bis zur heutigen Zeit. Der Schwerpunkt im dritten Teil liegt auf Analysen einzelner Gothic-Filme und Fernsehserien nach 2015. Die untersuchten Beispiele sind einerseits repr{\"a}sentativ im Hinblick auf typische Elemente, Motive oder Topoi und weisen andererseits Besonderheiten und Br{\"u}che auf, die sich f{\"u}r eine kultur- und medienwissenschaftliche Untersuchung als fruchtbar erweisen.}, language = {de} } @book{Dieter2021, author = {Dieter, Heribert}, title = {Chinas neuer langer Marsch}, series = {Schriftenreihe / Bundeszentrale f{\"u}r Politische Bildung ; Band 10685}, journal = {Schriftenreihe / Bundeszentrale f{\"u}r Politische Bildung ; Band 10685}, publisher = {Bundeszentrale f{\"u}r Politische Bildung}, address = {Bonn}, isbn = {978-3-7425-0685-6}, pages = {299}, year = {2021}, language = {de} } @article{ElSafadi2021, author = {El-Safadi, Majd}, title = {Afghanistan-Krieg}, series = {WeltTrends : das außenpolitische Journal}, volume = {29}, journal = {WeltTrends : das außenpolitische Journal}, number = {179}, publisher = {WeltTrends}, address = {Potsdam}, isbn = {978-3-947802-66-1}, issn = {0944-8101}, pages = {68 -- 71}, year = {2021}, language = {de} } @article{Proeve2021, author = {Pr{\"o}ve, Ralf}, title = {Wie mit Nach-Matrix-Sozialisierten umgehen, oder}, series = {Emotionen in Wissensinstitutionen. Zur Bedeutung affektiver Dimensionen in Forschung, Lehre und Unterricht}, journal = {Emotionen in Wissensinstitutionen. Zur Bedeutung affektiver Dimensionen in Forschung, Lehre und Unterricht}, editor = {Ernst, Sebastian}, publisher = {transcript}, address = {Bielefeld}, isbn = {978-3-8376-5735-7}, pages = {71 -- 92}, year = {2021}, language = {de} } @book{ApelojgHolzendorfMeieretal.2021, author = {Apelojg, Benjamin and Holzendorf, Ulf and Meier, Bernd and Mette, Dieter}, title = {Startklar! - Wirtschaft, Arbeit, Technik}, edition = {1. Aufl., 4.Druck.}, publisher = {Oldenbourg Schulbuchverlag}, address = {M{\"u}nchen}, isbn = {978-3-637-01960-7}, pages = {255}, year = {2021}, language = {de} } @article{FeddersMuenznerWeberetal.2021, author = {Fedders, Ronja and Muenzner, Matthias and Weber, Pamela and Sommerfeld, Manuela and Knauer, Miriam and Kedziora, Sarah and Kast, Naomi and Heidenreich, Steffi and Raila, Jens and Weger, Stefan and Henze, Andrea and Schupp, Michael}, title = {Liver-secreted RBP4 does not impair glucose homeostasis in mice}, series = {The journal of biological chemistry}, volume = {293}, journal = {The journal of biological chemistry}, number = {39}, publisher = {American Society for Biochemistry and Molecular Biology}, address = {Bethesda}, issn = {1083-351X}, doi = {10.1074/jbc.RA118.004294}, pages = {15269 -- 15276}, year = {2021}, abstract = {Retinol-binding protein 4 (RBP4) is the major transport protein for retinol in blood. Recent evidence from genetic mouse models shows that circulating RBP4 derives exclusively from hepatocytes. Because RBP4 is elevated in obesity and associates with the development of glucose intolerance and insulin resistance, we tested whether a liver-specific overexpression of RBP4 in mice impairs glucose homeostasis. We used adeno-associated viruses (AAV) that contain a highly liver-specific promoter to drive expression of murine RBP4 in livers of adult mice. The resulting increase in serum RBP4 levels in these mice was comparable with elevated levels that were reported in obesity. Surprisingly, we found that increasing circulating RBP4 had no effect on glucose homeostasis. Also during a high-fat diet challenge, elevated levels of RBP4 in the circulation failed to aggravate the worsening of systemic parameters of glucose and energy homeostasis. These findings show that liver-secreted RBP4 does not impair glucose homeostasis. We conclude that a modest increase of its circulating levels in mice, as observed in the obese, insulin-resistant state, is unlikely to be a causative factor for impaired glucose homeostasis.}, language = {en} } @article{ThapaWyłomańskaSikoraetal.2021, author = {Thapa, Samudrajit and Wyłomańska, Agnieszka and Sikora, Grzegorz and Wagner, Caroline E. and Krapf, Diego and Kantz, Holger and Chechkin, Aleksei V. and Metzler, Ralf}, title = {Leveraging large-deviation statistics to decipher the stochastic properties of measured trajectories}, series = {New Journal of Physics}, volume = {23}, journal = {New Journal of Physics}, publisher = {Dt. Physikalische Ges. ; IOP}, address = {Bad Honnef ; London}, issn = {1367-2630}, doi = {10.1088/1367-2630/abd50e}, pages = {22}, year = {2021}, abstract = {Extensive time-series encoding the position of particles such as viruses, vesicles, or individualproteins are routinely garnered insingle-particle tracking experiments or supercomputing studies.They contain vital clues on how viruses spread or drugs may be delivered in biological cells.Similar time-series are being recorded of stock values in financial markets and of climate data.Such time-series are most typically evaluated in terms of time-averaged mean-squareddisplacements (TAMSDs), which remain random variables for finite measurement times. Theirstatistical properties are different for differentphysical stochastic processes, thus allowing us toextract valuable information on the stochastic process itself. To exploit the full potential of thestatistical information encoded in measured time-series we here propose an easy-to-implementand computationally inexpensive new methodology, based on deviations of the TAMSD from itsensemble average counterpart. Specifically, we use the upper bound of these deviations forBrownian motion (BM) to check the applicability of this approach to simulated and real data sets.By comparing the probability of deviations fordifferent data sets, we demonstrate how thetheoretical bound for BM reveals additional information about observed stochastic processes. Weapply the large-deviation method to data sets of tracer beads tracked in aqueous solution, tracerbeads measured in mucin hydrogels, and of geographic surface temperature anomalies. Ouranalysis shows how the large-deviation properties can be efficiently used as a simple yet effectiveroutine test to reject the BM hypothesis and unveil relevant information on statistical propertiessuch as ergodicity breaking and short-time correlations.}, language = {en} } @phdthesis{Tamponi2021, author = {Tamponi, Guido Karl}, title = {George Santayana}, series = {Epistemata Philosophie ; 618}, journal = {Epistemata Philosophie ; 618}, publisher = {K{\"o}nigshausen \& Neumann}, address = {W{\"u}rzburg}, isbn = {978-3-8260-7335-9}, school = {Universit{\"a}t Potsdam}, pages = {422}, year = {2021}, language = {de} } @phdthesis{KnoxBrown2021, author = {Knox-Brown, Patrick Frank}, title = {Towards understanding the sequence-structure-function relationship of intrinsically disordered LEA_4 proteins from Arabidopsis thaliana}, school = {Universit{\"a}t Potsdam}, pages = {172, XI}, year = {2021}, abstract = {Water-deficits can cause lethal damage to organisms, which is rooted in cellular dehydration. Many plant species, but also other organisms have developed mechanisms to tolerate such stresses, such as the expression of LEA proteins. Many studies report on physiological protective functions of LEA proteins but lack information about their precise mechanisms on a molecular level. Most LEA proteins are intrinsically disordered in dilute solution but may adopt a distinct secondary structure upon changes in solvent conditions. Understanding the molecular mechanism of how LEA proteins contribute to the counteraction of cellular damage during water-deficits may in the long-term pave the way for breeding crops that are resistant to the effects of global warming. The objective of the work at hand is to improve the biophysical understanding of the sequencestructure-function relationship of LEA proteins as membrane stabilizers, based on the LEA_4 family of the model plant A. thaliana. This is pursued by using a combination of spectroscopic and scattering techniques, supported by bioinformatics and computational analyses. Eight out of the 18 LEA_4 proteins are experimentally assessed revealing that a coil-helix transition in response to water-deficit is a common feature, as predicted for the entire family. In addition, they all stabilize simple membrane models during a freeze/ thaw cycle. Three-dimensional structure prediction of representative members suggests that their completely folded states are represented by a sequential arrangement of alpha-helical segments connected by unstructured linkers, which is experimentally verified for the LEA_4 protein COR15A. The unstructured linker region of COR15A represents a conserved motif among its closest homologs and is, therefore, of particular interest. Facilitating a set of seven designed and investigated COR15A mutants uncovers a complex interplay of transient interactions between the amphipathic alpha-helical segments, mediated by the linker, which fine-tunes folding transitions and structural ensembles upon reduced water-availability. Finally, alpha-helicity is also induced in COR15A upon temperature decrease, which is enhanced in the presence of osmolytes. In addition, high solution osmolarity induced secondary structure is followed by oligomerization of COR15A. Interestingly, the functionality of COR15A, in terms of liposome stabilization, strongly correlates with its alpha-helix ratio in the folded state. The present work significantly improves the understanding of the sequence-structure-function relationship for LEA_4 proteins and offers novel findings on folding mechanisms and oligomerization of COR15A.}, language = {en} } @article{Grote2021, author = {Grote, Mathias}, title = {„Aus dem Kleinen bauen sich die Welten" - Christian Gottfried Ehrenbergs {\"o}kologische Mikrobiologie avant la lettre}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {https://doi.org/10.18443/318}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515016}, pages = {19 -- 32}, year = {2021}, abstract = {Die Geschichte der Mikrobiologie als Laborwissenschaft des sp{\"a}ten 19. Jahrhunderts hat f{\"u}r Ehrenberg keinen Platz. Unmodern, ja fehlerhaft scheinen die Befunde dieses „Humboldt en miniature", der die Belebtheit von Wasser oder Luft mikroskopisch untersuchte, der Proben aus aller Welt sammelte und so zahlreiche „Infusorien" genannte Mikroben sowie deren Effekte etwa bei Blutwundern beschrieb, deren Beteiligung an Infektionskrankheiten aber verneinte. Zugleich scheint sein {\"o}kologischer Blick auf den Mikrokosmos die Gegenwart auf {\"u}berraschende Weise anzusprechen - einerseits weil Mikroben omnipr{\"a}sentes Faszinosum wie Bedrohung bleiben, andererseits weil viele der Pr{\"a}missen von Pasteur und Koch im Zeitalter der Genomik {\"u}berholt erscheinen. Ausgehend von der zwiesp{\"a}ltigen Position Ehrenbergs fragt dieser Artikel, warum er m{\"o}glicherweise gerade deswegen spannender ist, als ihn die Historiographie bislang hat erscheinen lassen.}, language = {de} } @article{MacKinney2021, author = {MacKinney, Anne Greenwood}, title = {Die Inszenierung naturforschender Gelehrsamkeit beim Sammeln: Christian Gottfried Ehrenbergs und Wilhelm Hemprichs nordafrikanische Forschungsreise (1820 - 1825)}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {https://doi.org/10.18443/315}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515021}, pages = {35 -- 51}, year = {2021}, abstract = {Im Jahr 1820 traten zwei Universit{\"a}tsabsolventen, Christian Gottfried Ehrenberg und Wilhelm Hemprich, eine Forschungsreise nach Nordafrika an, die eine der ersten vom preußischen Staat maßgeblich getragenen Reiseunternehmungen darstellt. Wesentliches Ziel der Reise war das Sammeln von naturkundlichen Exemplaren f{\"u}r die junge Berliner Museumslandschaft. Der Beitrag ordnet die afrikanische Forschungsreise in die wissenschaftliche Laufbahn Ehrenbergs ein, der als einziger Reisender {\"u}berlebte, sowie in die Geschichte der Berliner Wissenschaftslandschaft im fr{\"u}hen 19. Jahrhundert. Dabei konzentriert sich der Beitrag auf die Medien - insbesondere Sammlungsverzeichnisse und Sammlungsobjekte - die die Reisenden im Feld einsetzen mussten, um ihre Identit{\"a}t als gelehrte Naturforscher gegen{\"u}ber ihren F{\"o}rderern zu inszenieren und damit ihre Position in der preußischen Wissenschaft strategisch zu sichern.}, language = {de} } @article{Paessler2021, author = {P{\"a}ßler, Ulrich}, title = {Christian Gottfried Ehrenberg und die Biogeographie: Die russisch-sibirische Reise mit Alexander von Humboldt (1829)}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515034}, pages = {75 -- 87}, year = {2021}, abstract = {The Russian-Siberian journey, carried out with Alexander von Humboldt and Gustav Rose in 1829 coincided with a decisive phase in Christian Gottfried Ehrenberg's scientific career. His field diary and the drawings he made on the trip document his intensified focus on the study of microorganisms. The numerous observations on plant and animal geography show how Ehrenberg tested a combination of micro- and macro-perspectives that would shape his research on infusoria in the following decades: In addition to the task of classification at the microscope, Ehrenberg carried out worldwide comparative research on the distribution of microorganisms.}, language = {de} } @article{KusberJahn2021, author = {Kusber, Wolf-Henning and Jahn, Regine}, title = {Christian Gottfried Ehrenbergs Zeichnungen: Eine fr{\"u}he wissenschaftliche Dokumentation mikroskopischer Organismen}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515040}, pages = {105 -- 117}, year = {2021}, abstract = {Die Erforschung und Beschreibung mikroskopischer Organismen durch Christian Gottfried Ehrenberg ist durch seine publizierten Texte und Kupfertafeln in den „Infusionsthierchen", der „Mikrogeologie" sowie aus Abhandlungen der Akademie der Wissenschaften {\"u}berliefert. Zentrale Bedeutung haben seine Zeichenbl{\"a}tter, anfangs alleinige Dokumentation, sp{\"a}ter komplementiert durch tausende mikroskopischer Dauerpr{\"a}parate rezenter und fossiler Kieselschalen sowie getrockneter Einzeller. Alle Originalmaterialien Ehrenbergs stehen f{\"u}r die aktuelle Forschung in der Ehrenbergsammlung zur Verf{\"u}gung. Seine detailgenauen Zeichnungen dienten der Erstbeschreibung einer Vielzahl neuer Arten aus allen Weltteilen. Biogeografische und {\"o}kologische Fragestellungen, Beschreibungen von Lebenszyklen sowie außerordentliche Ph{\"a}nomene wie die F{\"a}rbung von Gew{\"a}ssern und Erden wurden mithilfe zeichnerischer Analysen bearbeitet.}, language = {de} } @article{Markschies2021, author = {Markschies, Christoph}, title = {Geleitwort}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {https://doi.org/10.18443/325}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515452}, pages = {5 -- 13}, year = {2021}, language = {de} } @phdthesis{Eydam2021, author = {Eydam, Ulrich}, title = {Essays on Macroeconomics}, school = {Universit{\"a}t Potsdam}, pages = {161}, year = {2021}, abstract = {This dissertation consists of four self-contained papers. Each paper deals with a specific macroeconomic question. The first paper assesses the distributional implications of environmental policies from a general equilibrium macroeconomic perspective. I develop a New-Keynesian model with several types of uncertainties and frictions that incorporates liquidity constrained households. The model is calibrated to match the German economy and the numerical results show that climate policy instruments can be associated with regressive welfare effects. Furthermore, the analysis shows that these effects can be mitigated through an appropriate revenue recycling scheme. The second paper deals with short-run inequality dynamics within a real business cycle model. An empirical evaluation shows that the cyclical components of income inequality, the capital share and real GDP are correlated. We develop tractable representation of common inequality indicators in the general equilibrium model and show that the observed pattern is driven by innovations in the capital share. A Bayesian estimation of the model for the United States with data for the period 1948 to 2017 indicates that the model provides a reasonable fit for the data and successfully replicates the observed pattern of cyclical correlations. The third paper empirically examines the effects of banking regulation on the risk-relationship between sovereigns and banks. Based on a comprehensive data set of the European banking sector, we find that the implementation of the novel European banking regulation framework significantly contributed to a weakening of the risk-link between sovereigns and banks.The fourth paper empirically examines the role of institutional experience for institutional development in transition economies. To capture institutional experience, we develop a novel index, based on historical country records. The results of cross-sectional and panel estimations suggest that institutional experience helps to explain the divergent economic and institutional development in transition economies after the dissolution of the Soviet Union.}, language = {de} } @article{Paessler2021, author = {P{\"a}ßler, Ulrich}, title = {Reisen im Nahen Osten. Zeichnungen}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515571}, pages = {53 -- 71}, year = {2021}, abstract = {Heinrich Menu von Minutoli unternahm 1820 eine Reise nach Nordafrika zur Erforschung {\"a}gyptischer und griechischer Altert{\"u}mer. Die Preußische Akademie der Wissenschaften bestimmte die jungen Naturforscher Christian Gottfried Ehrenberg und Wilhelm Hemprich als weitere Teilnehmer. W{\"a}hrend Minutoli bereits ein Jahr nach Beginn der Expedition 1821 nach Europa zur{\"u}ckkehrte, setzten Ehrenberg und Hemprich ihre Forschungen fort. Von Alexandria aus unternahmen sie, zum Teil getrennt, Exkursionen in die libysche W{\"u}ste, auf die Sinaihalbinsel, zum Roten Meer, in das Libanongebirge sowie bis in den Sudan und nach Eritrea, wo Hemprich 1825 dem Malariafieber erlag. Wie von der Akademie der Wissenschaften beauftragt, sammelten Ehrenberg und Hemprich insgesamt 34 000 Tiere, 46 000 Pflanzen und 300 Mineralien. Diese trafen im Laufe der Jahre, verpackt in insgesamt 114 Kisten, in Berlin ein. Die Akademie stellte Mittel f{\"u}r die Auswertung der Sammlungen zur Verf{\"u}gung. Ehrenbergs Reisebericht blieb aber ebenso Fragment wie das großangelegte Tafelwerk Symbolae physicae.}, language = {de} } @article{Paessler2021, author = {P{\"a}ßler, Ulrich}, title = {Russisch-sibirische Reise. Zeichnungen}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515601}, pages = {89 -- 101}, year = {2021}, abstract = {„Eine der gr{\"o}ßten Freuden meines Lebens w{\"u}rde sein, einmal 5 - 6 Monathe mit Ihnen, an Ihrer Seite, unter Ihrer Belehrung reisen zu k{\"o}nnen. S{\"u}ßwassermuscheln, Fische, Bergpflanzen Rußlands sind wenig bekannt." Mit diesen Worten lud Alexander von Humboldt seinen Akademiekollegen Ehrenberg zur Teilnahme an der russisch-sibirischen Reise ein, die der preußische Kammerherr auf Einladung des Kaisers Nikolaj I. unternahm. Knapp drei Jahre nach der R{\"u}ckkehr von der arabisch-afrikanischen Forschungsreise brach Ehrenberg also erneut auf: Am 12. April 1829 traten Humboldt, Ehrenberg und der Mineraloge Gustav Rose ihre Reise in Berlin an. Diese f{\"u}hrte sie in knapp neun Monaten und {\"u}ber 19 000 Kilometer in den Ural und durch Westsibirien bis zur russisch-chinesischen Grenzstation Baty. W{\"a}hrend Humboldt und Rose die H{\"u}ttenbezirke im Ural und Altai inspizierten, legte Ehrenberg botanische und zoologische Sammlungen an.}, language = {de} } @article{Paessler2021, author = {P{\"a}ßler, Ulrich}, title = {Die Reise ins Kleinste der Natur. Zeichnungen}, series = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, volume = {XXII}, journal = {HiN : Alexander von Humboldt im Netz = Christian Gottfried Ehrenberg}, number = {42}, publisher = {Universit{\"a}tsverlag Potsdam}, address = {Potsdam}, issn = {1617-5239}, doi = {https://doi.org/10.18443/324}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-515612}, pages = {135 -- 153}, year = {2021}, abstract = {Nach den beiden großen Forschungsreisen konzentrierte Ehrenberg seine Arbeit in Berlin auf die systematische Beschreibung von Kleinstlebewesen, die sogenannten Infusorien. 1838 erschien eines seiner Hauptwerke, Die Infusionsthierchen als vollkommene Organismen. Ein Blick in das tiefere organische Leben der Natur. Ehrenberg untersuchte tausende Proben aus aller Welt und wies Infusorien auf dem Grund der Weltmeere, in atmosph{\"a}rischem Staub und in Hochgebirgen nach. Ausgehend von diesen Befunden besch{\"a}ftigte er sich mit dem Anteil einzelliger kieselschaliger Mikroorganismen an der Bildung von Erden und geologischen Formationen. 1854 legte er die Mikrogeologie vor: In 41 Bildtafeln gab er weltweite „geographische Uebersichten {\"u}ber das kleine jetzige erdbildende Leben". Christian Gottfried Ehrenberg gilt als Mitbegr{\"u}nder der Boden-Mikrobiologie und Mikropal{\"a}ontologie sowie als Pionier der Kieselalgenforschung und Protozoologie.}, language = {de} } @book{Gerstmann2021, author = {Gerstmann, Meike}, title = {Wissenschaftliches Arbeiten}, editor = {Rehder, Stephan A. and Wagner, Dieter and Madani, Roya}, publisher = {Kohlhammer}, address = {Stuttgart}, isbn = {978-3-17-037868-1}, pages = {117}, year = {2021}, abstract = {Die formalen und theoretischen Grundlagen wissenschaftlichen Arbeitens spielen in der akademischen Weiterbildung und dar{\"u}ber hinaus auch im Gesch{\"a}ftsalltag eine - zumeist untersch{\"a}tzte - Rolle: Gerade im Managementkontext m{\"u}ssen aus selbst erhobenen oder recherchierten Informationen gutachterliche Stellungnahmen erarbeitet und dabei die Grunds{\"a}tze ordnungsgem{\"a}ßer wissenschaftlicher Arbeit beachtet werden. Die Erstellung solcher Texte erfordert neben der F{\"a}higkeit zur Formulierung bzw. Abgrenzung einer forschungsleitenden Frage und zur gezielten Informationsrecherche auch spezifische F{\"a}higkeiten im Schreibprozess und beim Belegen von Quellen. Diese Kompetenzen sollen im Rahmen eines "Refresher"-Kurses, der als Grundlage f{\"u}r dieses Werk dient, so vermittelt werden, dass sowohl Studierende als auch Fach- und F{\"u}hrungskr{\"a}fte aus der Praxis schnell informiert werden.}, language = {de} } @phdthesis{Baeseler2021, author = {Baeseler, Jessica}, title = {Trace element effects on longevity and neurodegeneration with focus on C. elegans}, school = {Universit{\"a}t Potsdam}, pages = {X,114,VIII}, year = {2021}, abstract = {The trace elements zinc and manganese are essential for human health, especially due to their enzymatic and protein stabilizing functions. If these elements are ingested in amounts exceeding the requirements, regulatory processes for maintaining their physiological concentrations (homeostasis) can be disturbed. Those homeostatic dysregulations can cause severe health effects including the emergence of neurodegenerative disorders such as Parkinson's disease (PD). The concentrations of essential trace elements also change during the aging process. However, the relations of cause and consequence between increased manganese and zinc uptake and its influence on the aging process and the emergence of the aging-associated PD are still rarely understood. This doctoral thesis therefore aimed to investigate the influence of a nutritive zinc and/or manganese oversupply on the metal homeostasis during the aging process. For that, the model organism Caenorhabditis elegans (C. elegans) was applied. This nematode suits well as an aging and PD model due to properties such as its short life cycle and its completely sequenced, genetically amenable genome. Different protocols for the propagation of zinc- and/or manganese-supplemented young, middle-aged and aged C. elegans were established. Therefore, wildtypes, as well as genetically modified worm strains modeling inheritable forms of parkinsonism were applied. To identify homeostatic and neurological alterations, the nematodes were investigated with different methods including the analysis of total metal contents via inductively-coupled plasma tandem mass spectrometry, a specific probe-based method for quantifying labile zinc, survival assays, gene expression analysis as well as fluorescence microscopy for the identification and quantification of dopaminergic neurodegeneration.. During aging, the levels of iron, as well as zinc and manganese increased.. Furthermore, the simultaneous oversupply with zinc and manganese increased the total zinc and manganese contents to a higher extend than the single metal supplementation. In this relation the C. elegans metallothionein 1 (MTL-1) was identified as an important regulator of metal homeostasis. The total zinc content and the concentration of labile zinc were age-dependently, but differently regulated. This elucidates the importance of distinguishing these parameters as two independent biomarkers for the zinc status. Not the metal oversupply, but aging increased the levels of dopaminergic neurodegeneration. Additionally, nearly all these results yielded differences in the aging-dependent regulation of trace element homeostasis between wildtypes and PD models. This confirms that an increased zinc and manganese intake can influence the aging process as well as parkinsonism by altering homeostasis although the underlying mechanisms need to be clarified in further studies.}, language = {en} } @phdthesis{HeywoodJones2021, author = {Heywood Jones, David}, title = {Moses Hirschel and Enlightenment Breslau}, publisher = {Palgrave Macmillan}, address = {Cham}, isbn = {978-3-030-46234-5}, doi = {10.1007/978-3-030-46235-2}, pages = {viii, 264}, year = {2021}, abstract = {Breslau has been almost entirely forgotten in the Anglophone sphere as a place of Enlightenment. Moreover, in the context of the Jewish Enlightenment, Breslau has never been discussed as a place of intercultural exchange between German-speaking Jewish, Protestant and Catholic intellectuals. The story of Moses Hirschel offers us an excellent case-study to investigate the complex reciprocal relationship between Jewish and non-Jewish enlighteners in a prosperous and influential Central European city on the cusp of the 18th century.}, language = {en} } @article{FelserJessen2021, author = {Felser, Claudia and Jessen, Anna}, title = {Correlative coordination and variable subject-verb agreement in German}, series = {Languages : open access journal}, volume = {6}, journal = {Languages : open access journal}, number = {2}, publisher = {MDPI}, address = {Basel}, issn = {2226-471X}, doi = {10.3390/languages6020067}, pages = {20}, year = {2021}, abstract = {Coordinated subjects often show variable number agreement with the finite verb, but linguistic approaches to this phenomenon have rarely been informed by systematically collected data. We report the results from three experiments investigating German speakers' agreement preferences with complex subjects joined by the correlative conjunctions sowohl horizontal ellipsis als auch ('both horizontal ellipsis and'), weder horizontal ellipsis noch ('neither horizontal ellipsis nor') or entweder horizontal ellipsis oder ('either horizontal ellipsis or'). We examine to what extent conjunction type and a conjunct's relative proximity to the verb affect the acceptability and processibility of singular vs. plural agreement. Experiment 1 was an untimed acceptability rating task, Experiment 2 a timed sentence completion task, and Experiment 3 was a self-paced reading task. Taken together, our results show that number agreement with correlative coordination in German is primarily determined by a default constraint triggering plural agreement, which interacts with linear order and semantic factors. Semantic differences between conjunctions only affected speakers' agreement preferences in the absence of processing pressure but not their initial agreement computation. The combined results from our offline and online experimental measures of German speakers' agreement preferences suggest that the constraints under investigation do not only differ in their relative weighting but also in their relative timing during agreement computation.}, language = {en} } @article{Prieto2021, author = {Prieto, Julio}, title = {Un dandy de zapatos gastados}, series = {Chasqui : revista de literatura latinoamericana}, volume = {51}, journal = {Chasqui : revista de literatura latinoamericana}, number = {1}, publisher = {Arizona State University}, address = {Tempe}, issn = {0145-8973}, pages = {389 -- 407}, year = {2021}, abstract = {El comienzo podr{\´i}an ser dos im{\´a}genes de Vallejo en Par{\´i}s. La primera la extraigo de la m{\´a}s reciente biograf{\´i}a del escritor peruano, C{\´e}sar Vallejo: A Literary Biography, obra del hispanista brit{\´a}nico Stephen Hart. Refiere Hart que en sus primeros a{\~n}os en Par{\´i}s la situaci{\´o}n de Vallejo era tan precaria que cuando viajaba en tren evitaba descender del vag{\´o}n hasta que no se hubiera detenido del todo para no desgastar su {\´u}nico par de zapatos. En cierta ocasi{\´o}n, yendo con unos amigos y top{\´a}ndose con una acera encharcada por la ruptura de una boca de riego, Vallejo prefiri{\´o} dar media vuelta y despedirse de sus amigos antes que arriesgarse a arruinar sus zapatos atravesando el charco (108). Quisiera contrastar esta imagen, que sintetiza la penuria econ{\´o}mica que marc{\´o} la vida de Vallejo en Par{\´i}s y en general los quince a{\~n}os que pas{\´o} en Europa desde que abandon{\´o} el Per{\´u} en 1923 hasta su muerte en 1938, con la imagen que propone una fotograf{\´i}a (v{\´e}ase Fig. 1). Es una fotograf{\´i}a muy conocida: tomada en 1929 por Juan Domingo C{\´o}rdoba en el curso de un paseo veraniego por Versalles, se ha convertido en una suerte de imagen emblem{\´a}tica, reproducida en numerosas reediciones de la obra de Vallejo. De hecho, lo que a m{\´i} siempre me llam{\´o} la atenci{\´o}n en esta imagen es la pose. La pose, y la elegancia del atuendo. Consideremos por un momento lo atildado del traje, el coqueto pa{\~n}uelo que asoma del bolsillo superior de la chaqueta, el anillo con un {\´a}gata negra engastada en el dedo coraz{\´o}n, el sombrero de fieltro dejado al desgaire en la pierna, el se{\~n}orial bast{\´o}n—o la corbata anudada en pajarita con que aparece en otra fotograf{\´i}a contempor{\´a}nea (v{\´e}ase Fig. 2). Si hubiera que definir en una palabra la elegancia de esa pose, yo dir{\´i}a que es la pose de un dandy. Un dandy de zapatos gastados. En los m{\´u}ltiples transtierros de Vallejo, y en particular en los quince a{\~n}os que vivi{\´o} en Par{\´i}s, coexisten as{\´i} pues la precariedad econ{\´o}mica del emigrante y el cosmopolitismo del viajero culto.}, language = {es} } @article{KruegerLinker2021, author = {Kr{\"u}ger, Tobias and Linker, Torsten}, title = {Synthesis of gamma-spirolactams by Birch reduction of arenes}, series = {European journal of organic chemistry}, volume = {2021}, journal = {European journal of organic chemistry}, number = {10}, publisher = {Wiley-VCH}, address = {Weinheim}, issn = {1099-0690}, doi = {10.1002/ejoc.202100056}, pages = {1585 -- 1591}, year = {2021}, abstract = {A convenient method for the synthesis of gamma-spirolactams in only three steps is described. Birch reduction of inexpensive and commercially available aromatic carboxylic acids in the presence of chloroacetonitrile affords nitriles in moderate to good yields. Suitable precursors are methyl-substituted benzoic acids, naphthoic, and anthroic acid. Subsequent catalytic hydrogenation proceeds smoothly with PtO2 or Raney Ni as catalysts and lactams are isolated in excellent yields and stereoselectivities. Thus, up to 3 new stereogenic centers can be constructed as sole diastereomers from achiral benzoic acids. Furthermore, it is possible to control the degree of saturation at different pressures, affording products with 0, 1, or 2 double bonds. Overall, more than 15 new gamma-spirolactams have been synthesized in analytically pure form.}, language = {en} } @article{FudickarMetzMaiLindeetal.2021, author = {Fudickar, Werner and Metz, Melanie and Mai-Linde, Yasemin and Kr{\"u}ger, Tobias and Kelling, Alexandra and Sperlich, Eric and Linker, Torsten}, title = {Influence of functional groups on the ene reaction of singlet oxygen with 1,4-cyclohexadienes}, series = {Photochemistry and photobiology : the official journal of the American Society for Photobiology}, volume = {97}, journal = {Photochemistry and photobiology : the official journal of the American Society for Photobiology}, number = {6}, publisher = {Wiley}, address = {Malden, Mass.}, issn = {0031-8655}, doi = {10.1111/php.13422}, pages = {1289 -- 1297}, year = {2021}, abstract = {The photooxygenation of 1,4-cyclohexadienes has been studied with a special focus on regio- and stereoselectivities. In all examples, only the methyl-substituted double bond undergoes an ene reaction with singlet oxygen, to afford hydroperoxides in moderate to good yields. We explain the high regioselectivities by a "large-group effect" of the adjacent quaternary stereocenter. Nitriles decrease the reactivity of singlet oxygen, presumably by quenching, but can stabilize proposed per-epoxide intermediates by polar interactions resulting in different stereoselectivities. Spiro lactams and lactones show an interesting effect on regio- and stereoselectivities of the ene reactions. Thus, singlet oxygen attacks the double bond preferentially anti to the carbonyl group, affording only one regioisomeric hydroperoxide. If the reaction occurs from the opposite face, the other regioisomer is exclusively formed by severe electrostatic repulsion in a perepoxide intermediate. We explain this unusual behavior by the fixed geometry of spiro compounds and call it a "spiro effect" in singlet oxygen ene reactions.}, language = {en} } @article{Hein2021, author = {Hein, Johannes}, title = {Verb movement and the lack of verb-doubling VP topicalization in Germanic}, series = {The journal of comparative Germanic linguistics}, volume = {24}, journal = {The journal of comparative Germanic linguistics}, number = {1}, publisher = {Springer Science + Business Media B.V.}, address = {Dordrecht}, issn = {1383-4924}, doi = {10.1007/s10828-021-09125-5}, pages = {89 -- 144}, year = {2021}, abstract = {In the absence of a stranded auxiliary or modal, VP-topicalization in most Germanic languages gives rise to the presence of a dummy verb meaning 'do'. Cross-linguistically, this is a rather uncommon strategy as comparable VP-fronting constructions in other languages, e.g. Hebrew, Polish, and Portuguese, among many others, exhibit verb doubling. A comparison of several recent approaches to verb doubling in VP-fronting reveals that it is the consequence of VP-evacuating head movement of the verb to some higher functional head, which saves the (low copy of the) verb from undergoing copy deletion as part of the low VP copy in the VP-topicalization dependency. Given that almost all Germanic languages have such V-salvaging head movement, namely V-to-C movement, but do not show verb doubling, this paper suggests that V-raising is exceptionally impossible in VP-topicalization clauses and addresses the question of why it is blocked. After discussing and rejecting some conceivable explanations for the lack of verb doubling, I propose that the blocking effect arises from a bleeding interaction between V-to-C movement and VP-to-SpecCP movement. As both operations are triggered by the same head, i.e. C, the VP is always encountered first by a downward search algorithm. Movement of VP then freezes it and its lower copies for subextraction precluding subsequent V-raising. Crucially, this implies that there is no V-to-T raising in most Germanic languages. V2 languages with V-to-T raising, e.g. Yiddish, are correctly predicted to not exhibit the blocking effect.}, language = {en} } @article{KuehnePaunovWeck2021, author = {K{\"u}hne, Franziska and Paunov, Tatjana and Weck, Florian}, title = {Recognizing obsessive-compulsive disorder}, series = {BMC psychiatry}, volume = {21}, journal = {BMC psychiatry}, publisher = {Springer Nature}, address = {London}, issn = {1471-244X}, doi = {10.1186/s12888-021-03458-x}, pages = {7}, year = {2021}, abstract = {Background Despite the prevalence of obsessive-compulsive disorder (OCD), its precise identification remains challenging. With the Zohar-Fineberg Obsessive-Compulsive Screen (ZF-OCS; 5 or 6 items), a brief instrument is widely available mainly in English. As there is a lack of empirical studies on the ZF-OCS, the aim of the present study was to translate the items into German and investigate the instrument in a nonclinical sample. Methods In two consecutive online surveys, n = 304 and n = 51 students participated. Besides the ZF-OCS, they answered established measures on OCD, depression, health anxiety, general anxiety and health-related well-being. Results Whereas internal consistency was low (α = .53-.72; ω = .55-.69), retest reliability (rt1,t2 = .89) at two weeks was high. As expected, we found high correlations with other OCD instruments (r > .61; convergent validity), and significantly weaker correlations with measures of depression (r = .39), health anxiety (r = .29), and health-related well-being (r = -.28, divergent validity). Nonetheless, the correlations with general anxiety were somewhere in between (r = .52). Conclusions Due to heterogeneous OCD subtypes, the ZF-OCS asks diverse questions which probably resulted in the present internal consistency. Nevertheless, the results on retest reliability and validity were promising. As for other OCD instruments, divergent validity regarding general anxiety seems problematic to establish. Even so, the ZF-OCS seems valuable for screening purposes, as it is short and easy to administer, and may facilitate initiating subsequent clinical assessment. Further studies should determine the instrument's diagnostic accuracy.}, language = {en} } @article{Prieto2021, author = {Prieto, Julio}, title = {'La poes{\´i}a no da para tanto'}, series = {Bulletin of Hispanic studies : a record and review of their progress / The University of Liverpool}, volume = {98}, journal = {Bulletin of Hispanic studies : a record and review of their progress / The University of Liverpool}, number = {1}, publisher = {Liverpool Univ. Press}, address = {Liverpool}, issn = {1475-3839}, doi = {10.3828/bhs.2021.5}, pages = {67 -- 86}, year = {2021}, abstract = {This article focuses on the unique combination of poetry, fiction and autobiography that distinguishes Lorenzo Garcia Vega's recent work. Through a reading of this work and, in particular, of the 'bad novel', Devastacion del Hotel San Luis (2007), a rethinking of the concept of autofiction is proposed, based on Benveniste's linguistic analysis of enunciation modes and on a revision of Kate Hamburger's theory of literary genres. My reading situates the question of autofiction in this author in the context of his conflictive dialogue with the group Origenes, tracing the mixture of narrative and lyrical modes of autofiguration in Garcia Vega's unique project: rewriting both Proust's autobiographic narrative and Lezama's neobaroque poetics.}, language = {es} } @article{BondueBirke2021, author = {Bond{\"u}, Rebecca and Birke, Joseph}, title = {Links between aggressive sexual fantasies and presumably non-consensual aggressive sexual behavior when controlling for BDSM identity}, series = {International journal of conflict and violence}, volume = {14}, journal = {International journal of conflict and violence}, number = {1}, publisher = {Inst. for Interdisciplinary Conflict and Violence Research, Univ. of Bielefeld}, address = {Bielefeld}, issn = {1864-1385}, doi = {10.4119/ijcv-3777}, pages = {17}, year = {2021}, abstract = {Recent research provides evidence that aggressive sexual fantasies predict aggressive sexual behavior in the general population. However, sexual fantasies including fantasies about the infliction of pain and humiliation, should be frequent and often consensually acted upon among individuals with sadomasochistic likings. The question arises whether sexual fantasies with aggressive content still predict presumably non-consensual aggressive sexual behavior in individuals with sadomasochistic likings, given that BDSM encounters are generally considered consensual. To investigate this question, we conducted a questionnaire survey of sexual fantasies, as sessing the frequency of seventy sexual fantasies involving non-aggressive, masochistic, and aggressive acts. Our sample (N = 182) contained 99 respondents who self-identified as sadist, masochist, or switcher; 44 reported no such identification. For respondents reporting BDSM identification, we replicated a factor structure for sexual fantasies similar to that previously found in the general population, including three factors reflecting fantasies about increasingly severe aggressive sexual acts. Fantasies about injuring a partner and/or using weapons and fantasies about sexual coercion predicted presumably non-consensual sexual behavior independently of other risk factors for aggressive sexual behavior and irrespective of BDSM identification. Hence, severely aggressive sexual fantasies may predispose to presumably non-consensual sexual behavior in both individuals with and without BDSM identification.}, language = {en} } @misc{Scianna2021, author = {Scianna, Bastian Matteo}, title = {Book Review: Goeschel, Christian: Mussolini and Hitler - The forging of the fascist alliance and Adolf Hitler. - Yale University Press: New Haven, CT, 2018; X + 400 pp. - ISBN: 978-0-30017-883-8. - Schieder, Wolfgang: Adolf Hitler. Politischer Zauberlehrling Mussolinis. - De Gruyter Oldenbourg: Berlin, 2017; VIII + 228 pp.: ISBN: 978-3-11052-975-3}, series = {War in history}, volume = {28}, journal = {War in history}, number = {1}, publisher = {Sage}, address = {London}, isbn = {978-0-30017-883-8}, issn = {0968-3445}, doi = {10.1177/0968344520979471d}, pages = {228 -- 229}, year = {2021}, language = {en} } @inproceedings{InaebnitDennis2021, author = {In{\"a}bnit, Thomas and Dennis, Alice}, title = {The mitochondrial genome of Melampus bidentatus (Panpulmonata, Ellobioidea)}, series = {Integrative and comparative biology / Society of Integrative and Comparative Biology}, volume = {61}, booktitle = {Integrative and comparative biology / Society of Integrative and Comparative Biology}, number = {Supplement 1}, publisher = {Oxford University Press}, address = {Oxford}, issn = {1540-7063}, pages = {E405 -- E405}, year = {2021}, language = {en} } @article{Hassler2021, author = {Haßler, Gerda}, title = {Adverbal expression of aspectuality and interaction with perfective and imperfective verbs}, series = {Russian Grammar: System - Usus - Variation/Русская грамматика: Cистема - узус - варьирование}, journal = {Russian Grammar: System - Usus - Variation/Русская грамматика: Cистема - узус - варьирование}, publisher = {Lang}, address = {Berlin}, isbn = {978-3-631-87748-7}, pages = {219 -- 234}, year = {2021}, abstract = {This paper intends to explore the interaction between aspect and lexical means, in this case temporal adverbials, in the bounding of representations of situations. First, the theoretical basis is outlined, followed by the results of a corpus analysis of coccurrences with adverbs that limit situations. The term situation encompasses all representable processes, states, events, or actions. Finally, some theoretical conclusions are drawn concerning the cognitive category of bounding, using the example of aspectuality. The imperfective verb forms maintain their aspectuality in delimiting connections with adverbs, resulting in a complex, multi-dimensional aspectuality. In nongrammaticalized forms, such as lexical markers, the speaker is free to make a temporal localization or an aspectual perspective. Lexical expressions can make temporal and aspect markings even more precisely and clearly than tenses. They can also limit or extend situations and thus express aspect. Aspectuality thus presents itself as a compositional category, in which external bounding and the internal representation of a course of action or development can interact.}, language = {en} } @inproceedings{OPUS4-57990, title = {Russian Grammar: System - Usus - Variation}, series = {Linguistica Philologica ; 1}, booktitle = {Linguistica Philologica ; 1}, editor = {Haßler, Gerda and Wardlitz, Vladislava}, publisher = {Lang}, address = {Berlin}, isbn = {978-3-631-87748-7}, issn = {2750-2961}, doi = {10.3726/b19724}, pages = {577}, year = {2021}, abstract = {The present volume contains a selection of papers presented at the Fifth International Symposium Russian Grammar: System-Usus-Language Variation, from September 22 to 24, 2021, at the University of Potsdam (Germany). The selected essays tackle the issues that arise when Russian Grammar meets new linguistic paradigms (such as corpus linguistics) and new challenges (such as heritage languages). The relevant findings are discussed with a particular focus on an updated version of the 1980 Academy grammar of Russian.}, language = {ru} }