@misc{BreternitzLehmannBarnettetal.2019, author = {Breternitz, Joachim and Lehmann, Frederike and Barnett, Sarah A. and Nowell, Harriott and Schorr, Susan}, title = {Zur Rolle der Iodid-Methylammonium-Interaktion in der Ferroelektrizit{\"a}t in CH3NH3PbI3}, series = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe}, number = {1}, issn = {1866-8372}, doi = {10.1002/ange.201910599}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-525674}, pages = {7}, year = {2019}, abstract = {Ihre außergew{\"o}hnlich hohen Konversionseffizienzen von {\"u}ber 20 \% und die einfache Zellherstellung machen Hybridperowskite zu heißen Kandidaten f{\"u}r alternative Solarzellenmaterialien. CH3NH3PbI3 als Archetyp dieser Materialklasse besitzt außergew{\"o}hnliche Eigenschaften wie eine sehr effiziente Umwandlung von Solarenergie, wobei besonders Ferroelektrizit{\"a}t als m{\"o}gliche Erkl{\"a}rung in den Fokus ger{\"u}ckt ist. Diese erfordert allerdings eine nicht-zentrosymmetrische Kristallstruktur als notwendige Voraussetzung. Wir stellen hier eine Erkl{\"a}rung des Symmetriebruchs in diesem Material auf kristallographischem, d. h. fernordnungs-basiertem, Wege vor. W{\"a}hrend das Molek{\"u}lkation CH3NH3+ intrinsisch polar ist, ist es extrem fehlgeordnet und kann deshalb nicht die einzige Erkl{\"a}rung darstellen. Es verzerrt allerdings das umgebende Kristallgitter und ruft dadurch eine Verschiebung der Iod-Atome von den zentrosymmetrischen Positionen hervor.}, language = {de} } @misc{Kałczewiak2019, author = {Kałczewiak, Mariusz}, title = {Yiddish in the Andes}, series = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, number = {571}, doi = {10.25932/publishup-43506}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-435064}, pages = {21}, year = {2019}, abstract = {This article elucidates the efforts of Chilean-Jewish activists to create, manage and protect Chilean Yiddish culture. It illuminates how Yiddish cultural leaders in small diasporas, such as Chile, worked to maintain dialogue with other Jewish centers. Chilean culturists maintained that a unique Latin American Jewish culture existed and needed to be strengthened through the joint efforts of all Yiddish actors on the continent. Chilean activists envisioned a modern Jewish culture informed by both Eastern European influences and local Jewish cultural production, as well as by exchanges with non-Jewish Latin American majority cultures.}, language = {en} } @misc{ParaskevopoulouDennisWeithoffetal.2019, author = {Paraskevopoulou, Sofia and Dennis, Alice B. and Weithoff, Guntram and Hartmann, Stefanie and Tiedemann, Ralph}, title = {Within species expressed genetic variability and gene expression response to different temperatures in the rotifer Brachionus calyciflorus sensu stricto}, series = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam : Mathematisch-Naturwissenschaftliche Reihe}, number = {796}, issn = {1866-8372}, doi = {10.25932/publishup-44105}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-441050}, pages = {23}, year = {2019}, abstract = {Genetic divergence is impacted by many factors, including phylogenetic history, gene flow, genetic drift, and divergent selection. Rotifers are an important component of aquatic ecosystems, and genetic variation is essential to their ongoing adaptive diversification and local adaptation. In addition to coding sequence divergence, variation in gene expression may relate to variable heat tolerance, and can impose ecological barriers within species. Temperature plays a significant role in aquatic ecosystems by affecting species abundance, spatio-temporal distribution, and habitat colonization. Recently described (formerly cryptic) species of the Brachionus calyciflorus complex exhibit different temperature tolerance both in natural and in laboratory studies, and show that B. calyciflorus sensu stricto (s.s.) is a thermotolerant species. Even within B. calyciflorus s.s., there is a tendency for further temperature specializations. Comparison of expressed genes allows us to assess the impact of stressors on both expression and sequence divergence among disparate populations within a single species. Here, we have used RNA-seq to explore expressed genetic diversity in B. calyciflorus s.s. in two mitochondrial DNA lineages with different phylogenetic histories and differences in thermotolerance. We identify a suite of candidate genes that may underlie local adaptation, with a particular focus on the response to sustained high or low temperatures. We do not find adaptive divergence in established candidate genes for thermal adaptation. Rather, we detect divergent selection among our two lineages in genes related to metabolism (lipid metabolism, metabolism of xenobiotics).}, language = {en} } @misc{WewerFischer2019, author = {Wewer, G{\"o}ttrik and Fischer, Caroline}, title = {Wissensmanagement}, series = {Postprints der Universit{\"a}t Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Wirtschafts- und Sozialwissenschaftliche Reihe}, number = {139}, doi = {10.25932/publishup-50534}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-505341}, pages = {1 -- 12}, year = {2019}, abstract = {Wissen ist f{\"u}r die Bew{\"a}ltigung der Verwaltungsaufgaben eine wichtige Ressource. Das wirft die Frage auf, wie das notwendige Wissen erzeugt, bewahrt, verteilt und auffindbar gemacht werden kann. Ein solches Wissensmanagement kann die Arbeit der Beh{\"o}rden qualitativ verbessern und effizienter machen. Dennoch wird Wissen in der Verwaltungspraxis bisher nur unzureichend gemanagt. Ein systematisches Wissensmanagement erfordert personelle, finanzielle und technische Ressourcen. Sind diese nicht vorhanden, k{\"o}nnen Verwaltungen zun{\"a}chst auf einzelne Instrumente des Wissensmanagements zur{\"u}ckgreifen, um ihre Arbeit mit begrenztem Aufwand zu verbessern.}, language = {de} } @misc{HesseComunianAttinger2019, author = {Heße, Falk and Comunian, Alessandro and Attinger, Sabine}, title = {What We Talk About When We Talk About Uncertainty}, series = {Postprints der Universit{\"a}t Potsdam Mathematisch-Naturwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Mathematisch-Naturwissenschaftliche Reihe}, number = {754}, issn = {1866-8372}, doi = {10.25932/publishup-43658}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-436582}, pages = {20}, year = {2019}, language = {en} } @misc{FayUrbachScheithauer2019, author = {Fay, Doris and Urbach, Tina and Scheithauer, Linda}, title = {What motivates you right now?}, series = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, number = {545}, issn = {1866-8364}, doi = {10.25932/publishup-42735}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-427350}, pages = {17}, year = {2019}, abstract = {Regulatory focus is a motivational construct that describes humans' motivational orientation during goal pursuit. It is conceptualized as a chronic, trait-like, as well as a momentary, state-like orientation. Whereas there is a large number of measures to capture chronic regulatory focus, measures for its momentary assessment are only just emerging. This paper presents the development and validation of a measure of Momentary-Chronic Regulatory Focus. Our development incorporates the distinction between self-guide and reference-point definitions of regulatory focus. Ideals and ought striving are the promotion and prevention dimension in the self-guide system; gain and non-loss regulatory focus are the respective dimensions within the reference-point system. Three-survey-based studies test the structure, psychometric properties, and validity of the measure in its version to assess chronic regulatory focus (two samples of working participants, N = 389, N = 672; one student sample [time 1, N = 105; time 2, n = 91]). In two further studies, an experience sampling study with students (N = 84, k = 1649) and a daily-diary study with working individuals (N = 129, k = 1766), the measure was applied to assess momentary regulatory focus. Multilevel analyses test the momentary measure's factorial structure, provide support for its sensitivity to capture within-person fluctuations, and provide evidence for concurrent construct validity.}, language = {en} } @misc{HoehleBijeljacBabicNazzi2019, author = {H{\"o}hle, Barbara and Bijeljac-Babic, Ranka and Nazzi, Thierry}, title = {Variability and stability in early language acquisition}, series = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, number = {683}, issn = {1866-8364}, doi = {10.25932/publishup-46971}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-469718}, pages = {18}, year = {2019}, abstract = {Many human infants grow up learning more than one language simultaneously but only recently has research started to study early language acquisition in this population more systematically. The paper gives an overview on findings on early language acquisition in bilingual infants during the first two years of life and compares these findings to current knowledge on early language acquisition in monolingual infants. Given the state of the research, the overview focuses on research on phonological and early lexical development in the first two years of life. We will show that the developmental trajectory of early language acquisition in these areas is very similar in mono- and bilingual infants suggesting that these early steps into language are guided by mechanisms that are rather robust against the differences in the conditions of language exposure that mono- and bilingual infants typically experience.}, language = {en} } @misc{CiaccioClahsen2019, author = {Ciaccio, Laura Anna and Clahsen, Harald}, title = {Variability and consistency in first and second language processing}, series = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, journal = {Zweitver{\"o}ffentlichungen der Universit{\"a}t Potsdam : Humanwissenschaftliche Reihe}, number = {1}, issn = {1866-8364}, doi = {10.25932/publishup-51772}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-517727}, pages = {36}, year = {2019}, abstract = {Word forms such as walked or walker are decomposed into their morphological constituents (walk + -ed/-er) during language comprehension. Yet, the efficiency of morphological decomposition seems to vary for different languages and morphological types, as well as for first and second language speakers. The current study reports results from a visual masked priming experiment focusing on different types of derived word forms (specifically prefixed vs. suffixed) in first and second language speakers of German. We compared the present findings with results from previous studies on inflection and compounding and proposed an account of morphological decomposition that captures both the variability and the consistency of morphological decomposition for different morphological types and for first and second language speakers. Open Practices This article has been awarded an Open Materials badge. Study materials are publicly accessible via the Open Science Framework at . Learn more about the Open Practices badges from the Center for Open Science.}, language = {en} } @misc{RamezaniZiaraniBookhagenSchmidtetal.2019, author = {Ramezani Ziarani, Maryam and Bookhagen, Bodo and Schmidt, Torsten and Wickert, Jens and de la Torre, Alejandro and Hierro, Rodrigo}, title = {Using Convective Available Potential Energy (CAPE) and Dew-Point Temperature to Characterize Rainfall-Extreme Events in the South-Central Andes}, series = {Postprints der Universit{\"a}t Potsdam Mathematisch-Naturwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Mathematisch-Naturwissenschaftliche Reihe}, number = {771}, issn = {1866-8372}, doi = {10.25932/publishup-43886}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-438865}, pages = {22}, year = {2019}, abstract = {The interactions between atmosphere and steep topography in the eastern south-central Andes result in complex relations with inhomogenous rainfall distributions. The atmospheric conditions leading to deep convection and extreme rainfall and their spatial patterns—both at the valley and mountain-belt scales—are not well understood. In this study, we aim to identify the dominant atmospheric conditions and their spatial variability by analyzing the convective available potential energy (CAPE) and dew-point temperature (Td). We explain the crucial effect of temperature on extreme rainfall generation along the steep climatic and topographic gradients in the NW Argentine Andes stretching from the low-elevation eastern foreland to the high-elevation central Andean Plateau in the west. Our analysis relies on version 2.0 of the ECMWF's (European Centre for Medium-RangeWeather Forecasts) Re-Analysis (ERA-interim) data and TRMM (Tropical Rainfall Measuring Mission) data. We make the following key observations: First, we observe distinctive gradients along and across strike of the Andes in dew-point temperature and CAPE that both control rainfall distributions. Second, we identify a nonlinear correlation between rainfall and a combination of dew-point temperature and CAPE through a multivariable regression analysis. The correlation changes in space along the climatic and topographic gradients and helps to explain controlling factors for extreme-rainfall generation. Third, we observe more contribution (or higher importance) of Td in the tropical low-elevation foreland and intermediate-elevation areas as compared to the high-elevation central Andean Plateau for 90th percentile rainfall. In contrast, we observe a higher contribution of CAPE in the intermediate-elevation area between low and high elevation, especially in the transition zone between the tropical and subtropical areas for the 90th percentile rainfall. Fourth, we find that the parameters of the multivariable regression using CAPE and Td can explain rainfall with higher statistical significance for the 90th percentile compared to lower rainfall percentiles. Based on our results, the spatial pattern of rainfall-extreme events during the past ∼16 years can be described by a combination of dew-point temperature and CAPE in the south-central Andes.}, language = {en} } @misc{KrauseBaumBaumannetal.2019, author = {Krause, Hannes-Vincent and Baum, Katharina and Baumann, Annika and Krasnova, Hanna}, title = {Unifying the detrimental and beneficial effects of social network site use on self-esteem}, series = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, journal = {Postprints der Universit{\"a}t Potsdam Humanwissenschaftliche Reihe}, number = {567}, issn = {1866-8364}, doi = {10.25932/publishup-43503}, url = {http://nbn-resolving.de/urn:nbn:de:kobv:517-opus4-435037}, pages = {39}, year = {2019}, abstract = {Previous research offers equivocal results regarding the effect of social networking site use on individuals' self-esteem. We con- duct a systematic literature review to examine the existing litera- ture and develop a theoretical framework in order to classify the results. The framework proposes that self-esteem is affected by three distinct processes that incorporate self-evaluative informa- tion: social comparison processes, social feedback processing, and self-reflective processes. Due to particularities of the social networking site environment, the accessibility and quality of self- evaluative information is altered, which leads to online-specific effects on users' self-esteem. Results of the reviewed studies suggest that when a social networking site is used to compare oneself with others, it mostly results in decreases in users' self- esteem. On the other hand, receiving positive social feedback from others or using these platforms to reflect on one's own self is mainly associated with benefits for users' self-esteem. Nevertheless, inter-individual differences and the specific activ- ities performed by users on these platforms should be considered when predicting individual effects.}, language = {en} }