@phdthesis{Jurczok2019, author = {Jurczok, Anne}, title = {Schulwahl unter „gleichwertigen" Einzelschulen}, publisher = {Springer}, address = {Wiesbaden}, isbn = {978-3-658-26198-6}, school = {Universit{\"a}t Potsdam}, pages = {308}, year = {2019}, abstract = {In zweigliedrigen Sekundarschulsystemen mit gleicher Abschlussorientierung - wie sie in immer mehr Bundesl{\"a}ndern zu finden sind - tritt die Einzelschule mit ihren spezifischen Eigenschaften in den Fokus der Schulwahl. Als eine der ersten Studien untersucht Anne Jurczok, welche Schuleigenschaften Eltern pr{\"a}ferieren, welche Informationen sie nutzen und welche Einzelschulen sie unter den Bedingungen der Zweigliedrigkeit ausw{\"a}hlen und ablehnen. Auf Grundlage werterwartungstheoretischer {\"U}berlegungen und der Frame-Selektion wird der Prozess der Einzelschulwahl konzeptualisiert und die institutionellen, lokalen und sozio-kulturellen Bedingungen der Wahlsituation ber{\"u}cksichtigt. ​}, language = {de} } @phdthesis{Baleka2019, author = {Baleka, Sina Isabelle}, title = {Palaeogenetic analyses of extinct Elephantidae from temperate and subtropical climates}, school = {Universit{\"a}t Potsdam}, pages = {xiii, 114}, year = {2019}, language = {en} } @article{AgarwalCaesarMarwanetal.2019, author = {Agarwal, Ankit and Caesar, Levke and Marwan, Norbert and Maheswaran, Rathinasamy and Merz, Bruno}, title = {Network-based identification and characterization of teleconnections on different scales}, series = {Scientific Reports}, volume = {9}, journal = {Scientific Reports}, publisher = {Macmillan Publishers Limited}, address = {London}, issn = {2045-2322}, doi = {10.1038/s41598-019-45423-5}, pages = {12}, year = {2019}, abstract = {Sea surface temperature (SST) patterns can - as surface climate forcing - affect weather and climate at large distances. One example is El Ni{\~n}o-Southern Oscillation (ENSO) that causes climate anomalies around the globe via teleconnections. Although several studies identified and characterized these teleconnections, our understanding of climate processes remains incomplete, since interactions and feedbacks are typically exhibited at unique or multiple temporal and spatial scales. This study characterizes the interactions between the cells of a global SST data set at different temporal and spatial scales using climate networks. These networks are constructed using wavelet multi-scale correlation that investigate the correlation between the SST time series at a range of scales allowing instantaneously deeper insights into the correlation patterns compared to traditional methods like empirical orthogonal functions or classical correlation analysis. This allows us to identify and visualise regions of - at a certain timescale - similarly evolving SSTs and distinguish them from those with long-range teleconnections to other ocean regions. Our findings re-confirm accepted knowledge about known highly linked SST patterns like ENSO and the Pacific Decadal Oscillation, but also suggest new insights into the characteristics and origins of long-range teleconnections like the connection between ENSO and Indian Ocean Dipole.}, language = {en} } @book{OPUS4-43046, title = {Verwaltungshandeln in der Fl{\"u}chtlingskrise}, series = {Schriften der Deutschen Sektion des Internationalen Instituts f{\"u}r Verwaltungswissenschaften ; 42}, journal = {Schriften der Deutschen Sektion des Internationalen Instituts f{\"u}r Verwaltungswissenschaften ; 42}, editor = {Bogumil, J{\"o}rg and Kuhlmann, Sabine and Proeller, Isabella}, publisher = {Nomos}, address = {Baden-Baden}, isbn = {978-3-8452-9650-0}, pages = {154}, year = {2019}, language = {de} } @article{Kraemer2019, author = {Kr{\"a}mer, Raimund}, title = {Chile und die DDR}, series = {Die verschwundene Diplomatie}, journal = {Die verschwundene Diplomatie}, edition = {2. , unver{\"a}nderte Ausg.}, publisher = {WeltTrends}, address = {Potsdam}, pages = {233 -- 242}, year = {2019}, language = {de} } @article{Kraemer2019, author = {Kr{\"a}mer, Raimund}, title = {Kuba und die DDR}, series = {Die verschwundene Diplomatie}, journal = {Die verschwundene Diplomatie}, edition = {2. , unver{\"a}nderte Ausg.}, publisher = {WeltTrends}, address = {Potsdam}, pages = {223 -- 232}, year = {2019}, language = {de} } @article{Kraemer2019, author = {Kr{\"a}mer, Raimund}, title = {Arch{\"a}ologische Grabungen in einer verschwundenen Diplomatie}, series = {Die verschwundene Diplomatie}, journal = {Die verschwundene Diplomatie}, edition = {2. , unver{\"a}nderte Ausg.}, publisher = {WeltTrends}, address = {Potsdam}, pages = {210 -- 222}, year = {2019}, language = {de} } @article{CromeFranzke2019, author = {Crome, Erhard and Franzke, Jochen}, title = {Die DDR und Polen}, edition = {2. , unver{\"a}nderte Ausg.}, publisher = {WeltTrends}, address = {Potsdam}, pages = {110 -- 123}, year = {2019}, language = {de} } @article{CromeFranzke2019, author = {Crome, Erhard and Franzke, Jochen}, title = {DDR-B{\"u}rger und Perestroika}, series = {Die verschwundene Diplomatie}, journal = {Die verschwundene Diplomatie}, edition = {2. , unver{\"a}nderte Ausg.}, publisher = {WeltTrends}, address = {Potsdam}, pages = {93 -- 109}, year = {2019}, language = {de} } @article{KraemerWallraf2019, author = {Kr{\"a}mer, Raimund and Wallraf, Wolfram}, title = {Diplomatie oder Parteiarbeiter?}, series = {Die verschwundene Diplomatie}, journal = {Die verschwundene Diplomatie}, edition = {2. , unver{\"a}nderte Ausg.}, publisher = {WeltTrends}, address = {Potsdam}, pages = {59 -- 72}, year = {2019}, language = {de} } @article{CromeKraemer2019, author = {Crome, Erhard and Kr{\"a}mer, Raimund}, title = {Die Außenpolitik der DDR}, series = {Die verschwundene Diplomatie}, journal = {Die verschwundene Diplomatie}, edition = {2. , unver{\"a}nderte Ausg.}, publisher = {WeltTrends}, address = {Potsdam}, pages = {26 -- 45}, year = {2019}, language = {de} } @book{OPUS4-43038, title = {Die verschwundene Diplomatie}, editor = {Crome, Erhard and Franzke, Jochen and Kr{\"a}mer, Raimund}, edition = {2. , unver{\"a}nderte Ausg.}, publisher = {Berliner Debatte Wissenschaftsverlag}, address = {Berlin}, isbn = {978-3-947802-27-2}, year = {2019}, abstract = {Das sechste Potsdamer Textbuch ist eine solide und kritische Bilanz der Außenpolitik der DDR. Weder rechtfertigt und verkl{\"a}rt sie nostalgisch eingef{\"a}rbt das vergangene System, noch verurteilt sie pauschal. Den Beitr{\"a}gen liegen sowohl umfangreiche Recherchen in den Archiven als auch lebensweltliche Erfahrungen mit der Außenpolitik des deutschen Realsozialismus zugrunde. Der Band, der zum 70. Geburtstag des ehemaligen Professors am Institut f{\"u}r Internationale Beziehungen der DDR Claus Montag erschien, macht generelle Linien der ostdeutschen Außenpolitik sichtbar und zeigt zugleich sehr konkret die internationale Vernetzung der DDR in den verschiedenen Phasen des Kalten Krieges.}, language = {de} } @phdthesis{Haase2019, author = {Haase, Nadin}, title = {The nascent peptide chain in the ribosomal exit tunnel}, school = {Universit{\"a}t Potsdam}, pages = {105}, year = {2019}, language = {en} } @phdthesis{Jiang2019, author = {Jiang, Yi}, title = {Tailoring surface functions of micro/nanostructured polymeric substrates by thermo-mechanical treatments}, school = {Universit{\"a}t Potsdam}, pages = {93}, year = {2019}, language = {en} } @phdthesis{Schwarzenthal2019, author = {Schwarzenthal, Miriam}, title = {Intercultural competence among adolescents attending culturally diverse schools in Germany}, school = {Universit{\"a}t Potsdam}, pages = {196}, year = {2019}, language = {de} } @phdthesis{Seiler2019, author = {Seiler, Sara}, title = {Lernleistungen im Sportunterricht}, series = {Bildung und Sport ; 19}, journal = {Bildung und Sport ; 19}, publisher = {Springer}, address = {Wiesbaden}, isbn = {978-3-658-26648-6}, school = {Universit{\"a}t Potsdam}, pages = {405}, year = {2019}, abstract = {Dieses Buch liefert {\"u}berblicksartig Befunde einer Wirkungsforschung im Fach Sport und behandelt Determinanten und Konsequenzen von Leistungen von Sch{\"u}lern und Sch{\"u}lerinnen im Sportunterricht. Ausgehend vom Angebot-Nutzen-Modell (nach Helmke, 2010) analysiert Sara Seiler distale und proximale Merkmale des Lehr-Lern-Prozesses in ihrer Einflussnahme auf Lernleistungen von Sch{\"u}lern und Sch{\"u}lerinnen in einem Mehrebenenmodell. Entgegen einer Reduzierung auf kognitive Lernleistungen werden motorische, motivationale, volitionale und personale Aspekte als Lernleistungen im Sport diskutiert.}, language = {de} } @phdthesis{Baer2019, author = {B{\"a}r, Roy F.}, title = {Grundlagen der wettbewerbsrechtlichen Unternehmensverantwortlichkeit im europ{\"a}ischen Bußgeldverfahren}, series = {Studienreihe Wirtschaftsrechtliche Forschungsergebnisse ; 207}, journal = {Studienreihe Wirtschaftsrechtliche Forschungsergebnisse ; 207}, publisher = {Kovac}, address = {Hamburg}, isbn = {978-3-339-10992-7}, school = {Universit{\"a}t Potsdam}, pages = {214}, year = {2019}, abstract = {Immer wieder gelingt es Konzernen durch geschickte gesellschaftsrechtliche Konstrukte, ihre Verantwortlichkeit f{\"u}r wettbewerbsrechtliche Verst{\"o}ße auszugliedern oder sich dieser g{\"a}nzlich zu entziehen. Dem begegnet das Europ{\"a}ische Wettbewerbsrecht in Bußgeldverfahren seit einiger Zeit mit der Zusammenfassung rechtlich selbst{\"a}ndiger Gesellschaften zu einem Unternehmen als »wirtschaftliche Einheit«. Diese Untersuchung widmet sich der methodischen Grundlegung dieses wettbewerbsrechtlichen Unternehmensbegriffs. Sie geht zudem der Frage nach, ob er sich auf das Deutsche Wettbewerbsrecht, insbesondere auf kartellrechtliche Schadensersatzklagen {\"u}bertragen l{\"a}sst.}, language = {de} } @phdthesis{Thiele2019, author = {Thiele, Johannes}, title = {Kontextualisiertes Textverstehen im Literaturunterricht}, publisher = {Schneider}, address = {Baltmannsweiler}, isbn = {978-3-8340-1952-3}, school = {Universit{\"a}t Potsdam}, pages = {XII, 350}, year = {2019}, abstract = {Bei der Arbeit mit literarischen Texten spielen Kontexte f{\"u}r das Verstehen naturgem{\"a}ß eine herausgehobene Rolle. Lehrerinnen und Lehrer sind dabei mit vielf{\"a}ltigen Problemen konfrontiert: Welche Kontexte sind in welchen Jahrgangsstufen sinnvoll und ergiebig? Wann {\"u}berfrachtet die Anreicherung mit Kontexten einen Verstehensprozess, wann ist sie unumg{\"a}nglich? Wie gelingt es, dass Lernende Kontexte nicht nur schematisch, sondern flexibel f{\"u}r das Verstehen einsetzen? Wie k{\"o}nnen die Forderungen der Bildungsstandards und Lehrpl{\"a}ne nach einer intensiven Kontextualisierung im Unterricht konkret umgesetzt werden? Der vorliegende Band gibt auf diese Fragen anwendungsorientierte Antworten. Dies geschieht auf drei Ebenen: Zum einen wird {\"u}ber einen analytischen Zugang der Kontextbegriff systematisiert (mit den Kontextbereichen Gattung, Literaturgeschichte, Autorbiografie und Intertextualit{\"a}t), zum anderen wird in einer empirischen Studie die Wirksamkeit reflektierter Kontextnutzung f{\"u}r das Textverstehen verdeutlicht. Drittens werden erprobte Modelle f{\"u}r den konkreten Einsatz im Unterricht vorgestellt und diskutiert. So k{\"o}nnen Kontexte als ein ergiebiges Werkzeug f{\"u}r den Unterricht bereitgestellt werden.}, language = {de} } @article{Rosso2019, author = {Rosso, Enrico}, title = {Moskauer Passagen}, series = {Material und Begriff ; Arbeitsverfahren und theoretische Beziehungen Walter Benjamins}, journal = {Material und Begriff ; Arbeitsverfahren und theoretische Beziehungen Walter Benjamins}, publisher = {Argument}, address = {Hamburg}, isbn = {978-3-86754-322-4}, pages = {102 -- 134}, year = {2019}, language = {de} } @article{BaehrensVoigt2019, author = {Baehrens, Konstantin and Voigt, Frank}, title = {Die Problemgeschichte wird tats{\"a}chlich zur Geschichte der Probleme}, series = {Material und Begriff ; Arbeitsverfahren und theoretische Beziehungen Walter Benjamins}, journal = {Material und Begriff ; Arbeitsverfahren und theoretische Beziehungen Walter Benjamins}, publisher = {Argument}, address = {Hamburg}, isbn = {978-3-86754-322-4}, pages = {193 -- 242}, year = {2019}, language = {de} } @book{OPUS4-43025, title = {Material und Begriff}, series = {Argument / Sonderband ; Neue Folge, AS 322}, journal = {Argument / Sonderband ; Neue Folge, AS 322}, editor = {Voigt, Frank and Tzanakis Papadakis, Nicos and Loheit, Jan and Baehrens, Konstantin}, publisher = {Argument}, address = {Hamburg}, isbn = {978-3-86754-322-4}, pages = {319}, year = {2019}, language = {de} } @book{OPUS4-43002, title = {Service Design and Service Thinking in Healthcare and Hospital Management}, editor = {Pfannstiel, Mario Alexander and Rasche, Christoph}, publisher = {Springer International Publishing}, address = {Cham}, isbn = {978-3-030-00748-5}, doi = {10.1007/978-3-030-00749-2}, publisher = {Universit{\"a}t Potsdam}, pages = {XVII, 535}, year = {2019}, language = {en} } @article{SmithRheinwaltBookhagen2019, author = {Smith, Taylor and Rheinwalt, Aljoscha and Bookhagen, Bodo}, title = {Determining the optimal grid resolution for topographic analysis on an airborne lidar dataset}, series = {Earth Surface Dynamics}, volume = {7}, journal = {Earth Surface Dynamics}, publisher = {Copernicus Publ.}, address = {G{\"o}ttingen}, issn = {2196-6311}, doi = {10.5194/esurf-7-475-2019}, pages = {475 -- 489}, year = {2019}, abstract = {Digital elevation models (DEMs) are a gridded representation of the surface of the Earth and typically contain uncertainties due to data collection and processing. Slope and aspect estimates on a DEM contain errors and uncertainties inherited from the representation of a continuous surface as a grid (referred to as truncation error; TE) and from any DEM uncertainty. We analyze in detail the impacts of TE and propagated elevation uncertainty (PEU) on slope and aspect. Using synthetic data as a control, we define functions to quantify both TE and PEU for arbitrary grids. We then develop a quality metric which captures the combined impact of both TE and PEU on the calculation of topographic metrics. Our quality metric allows us to examine the spatial patterns of error and uncertainty in topographic metrics and to compare calculations on DEMs of different sizes and accuracies. Using lidar data with point density of ∼10 pts m-2 covering Santa Cruz Island in southern California, we are able to generate DEMs and uncertainty estimates at several grid resolutions. Slope (aspect) errors on the 1 m dataset are on average 0.3∘ (0.9∘) from TE and 5.5∘ (14.5∘) from PEU. We calculate an optimal DEM resolution for our SCI lidar dataset of 4 m that minimizes the error bounds on topographic metric calculations due to the combined influence of TE and PEU for both slope and aspect calculations over the entire SCI. Average slope (aspect) errors from the 4 m DEM are 0.25∘ (0.75∘) from TE and 5∘ (12.5∘) from PEU. While the smallest grid resolution possible from the high-density SCI lidar is not necessarily optimal for calculating topographic metrics, high point-density data are essential for measuring DEM uncertainty across a range of resolutions.}, language = {en} } @phdthesis{Gonschorek2019, author = {Gonschorek, Julia}, title = {Konzeption und prototypische Umsetzung eines regelbasierten Prozesses zur geovisuellen Auswertung massiver raumzeitlicher Datenbest{\"a}nde von Feuerwehreins{\"a}tzen}, school = {Universit{\"a}t Potsdam}, pages = {80}, year = {2019}, language = {de} } @phdthesis{Riedel2019, author = {Riedel, Simona}, title = {Characterization of Mitochondrial ABC Transporter Homologues in Rhodobacter capsulatus}, school = {Universit{\"a}t Potsdam}, pages = {127}, year = {2019}, abstract = {ABC-Transporter (ABC abgeleitet von ATP-Binding Cassette) geh{\"o}ren zur Klasse der Transmembran-Proteine und kommen in allen drei Dom{\"a}nen des Lebens vor. Ihr struktureller Aufbau ist dabei stets {\"a}hnlich, wohingegen konservierte Proteinsequenzen selten vorkommen. Die Transporter sind aus zwei lipophilen, membran-durchspannenden Dom{\"a}nen, welche auch TMDs (abgeleitet von Transmembrane spanning Domains) genannt werden, und zwei hydrophilen Dom{\"a}nen, die auch NBDs (abgeleitet von Nucleotide Binding Domains) genannt werden, aufgebaut. Die Vielzahl der durch ABC-Transporter bef{\"o}rderten Molek{\"u}le erkl{\"a}rt dabei die enorme Anzahl diverser TMDs. In den Mitochondrien des Menschen findet man vier ABC-Transporter (ABCB6, ABCB7, ABCB8 und ABCB10) mit funktionellen Homologen in Hefen und Pflanzen. In Bakterien hingegen k{\"o}nnen, mit Ausnahme von Rickettsiae und verwandten Bakterien, keine Homologen zu mitochondrialen ABC-Transportern identifiziert werden. Die transportierten Molek{\"u}le sowie die damit verbundenen Funktionen sind im Einzelnen bislang weitgehend unbekannt. ABCB7 und die entsprechenden Homologen in Hefen (Atm1) und in Pflanzen (ATM3) konnten mit der cytosolischen Eisen-Schwefel-Cluster-Biosynthese in Zusammenhang gebracht werden. Eine schwefelhaltige Verbindung der mitochondrialen Matrix wird mit Hilfe dieses Transporters der cytosolischen Eisen-Schwefel-Cluster-Assemblierung zur Verf{\"u}gung gestellt. Die 2014 publizierten Kristallstrukturen von Atm1 (Hefe) und Atm1 aus Novosphingobium aromaticivorans offenbarten dabei eine hoch konservierte Glutathion-Bindetasche innerhalb der TMDs f{\"u}r ABCB7 Homologe. In der Modellpflanze Arabidopsis thaliana konnte ATM3 zus{\"a}tzlich mit der Biosynthese des Molybd{\"a}n-Cofaktors in Verbindung gebracht werden. In der vorliegenden Arbeit wurde das α-Proteobacterium Rhodobacter capsulatus als Modellorganismus genutzt, um mitochondriale ABC-Transporter Homologe zu untersuchen. Das Bakterium enth{\"a}lt zwei ABC-Transporter-Gene, rcc03139 und rcc02305, die mit den humanen mitochondrialen Transportern große Sequenz{\"u}bereinstimmungen aufweisen (rcc03139: 41 \% respektive 38 \% Identit{\"a}t mit ABCB8 und ABCB10, rcc02305: 47 \% identisch mit ABCB7 und ABCB6). Mit Hilfe erzeugter Interposon-Mutanten (Δrcc02305I und Δrcc03139I) konnte erstmals gezeigt werden, dass bakterielle Transporter funktionell sehr {\"a}hnliche Aufgaben wie die mitochondrialen ABC-Transporter {\"u}bernehmen. Beispielsweise akkumulierten beide Interposon-Mutanten reaktive Sauerstoff-Spezies (ROS) ohne gleichzeitige Akkumulation von Glutathion oder Eisen. Weiterhin konnten wir zeigen, dass, {\"a}hnlich wie bereits f{\"u}r ATM3 postuliert, die Biosynthese des Molybd{\"a}n-Cofaktors in Δrcc02305I ver{\"a}ndert ist. Mit Hilfe einer lebensf{\"a}higen Doppelmutante, in der beide ABC-Transporter-Gene gleichzeitig deletiert wurden, konnten wir ausschließen, dass die beiden bakteriellen ABC-Transporter grunds{\"a}tzlich redundante Funktionen haben. Durch die Analyse des Proteoms von Δrcc03139I im Vergleich zu der des Wildtyps, konnte eine extreme Beeinflussung der Tetrapyrrol Biosynthese sowie entsprechender Zielproteine identifiziert werden. Dies konnte zus{\"a}tzlich durch die Quantifizierung einzelner Zwischenprodukte der Biosynthese best{\"a}tigt werden. Im Gegensatz dazu konnte anhand der Analyse des Proteoms in Verbindung mit analytischen Methoden in Δrcc02305I ein Ungleichgewicht in der Schwefelverteilung identifiziert werden. Zusammen mit der Entdeckung einer Pyridoxalphosphat (PLP) Bindestelle in Rcc02305 und anderen ABCB7-artigen Transportern, welche direkt mit dem Walker-A-Motiv der NBD {\"u}berlappt, erm{\"o}glichte dies eine v{\"o}llig neue Theorie, wie die schwefelhaltige Verbindung transportiert werden kann. Wir gehen davon aus, dass an PLP zun{\"a}chst ein Persulfid produziert wird, welches unmittelbar mit dem Glutathion der transmembranen Bindetasche zu einem gemischten Polysulfid reagiert. Im Anschluss daran wird die ATP-Bindestelle frei und die Hydrolyse des ATPs l{\"o}st eine Konformations{\"a}nderung aus, welche das gemischte Polysulfid ins Periplasma bzw. in den intermembranen Raum freigibt.}, language = {en} } @phdthesis{Schulze2019, author = {Schulze, Tanja}, title = {Untersuchungen zur Entwicklung und Synthese neuartiger Gelenkst{\"a}be basierend auf Oligospiroketalen}, school = {Universit{\"a}t Potsdam}, pages = {174}, year = {2019}, language = {de} } @phdthesis{Streeck2019, author = {Streeck, Eva-Maria}, title = {Die rechtsgesch{\"a}ftliche {\"U}bertragung von Kommanditanteilen}, publisher = {Springer}, address = {Wiesbaden}, isbn = {978-3-658-25348-6}, school = {Universit{\"a}t Potsdam}, pages = {XIV, 169}, year = {2019}, abstract = {Dieses Buch befasst sich mit der Anteils{\"u}bertragung von Kommanditanteilen, die von der Rechtsprechung zwar l{\"a}ngst anerkannt ist, jedoch vom Gesetzgeber bislang nicht geregelt wurde. Bei der Eintragung einer solchen Anteils{\"u}bertragung in das Handelsregister unterlaufen in der Praxis h{\"a}ufig Fehler, deren jeweilige haftungsrechtliche Konsequenz die Autorin eingehend untersucht. Im Zentrum der Arbeit steht die These, dass die Nichteintragung des Sonderrechtsnachfolgevermerkes zu keiner doppelten Haftung von Neu- und Altkommanditist f{\"u}hrt.}, language = {de} } @article{AyzelHeistermannWinterrath2019, author = {Ayzel, Georgy and Heistermann, Maik and Winterrath, Tanja}, title = {Optical flow models as an open benchmark for radar-based precipitation nowcasting (rainymotion v0.1)}, series = {Geoscientific model development}, journal = {Geoscientific model development}, number = {12}, publisher = {Copernicus Publications}, address = {G{\"o}ttingen}, issn = {1991-9603}, doi = {10.5194/gmd-12-1387-2019}, pages = {1387 -- 1402}, year = {2019}, abstract = {Quantitative precipitation nowcasting (QPN) has become an essential technique in various application contexts, such as early warning or urban sewage control. A common heuristic prediction approach is to track the motion of precipitation features from a sequence of weather radar images and then to displace the precipitation field to the imminent future (minutes to hours) based on that motion, assuming that the intensity of the features remains constant ("Lagrangian persistence"). In that context, "optical flow" has become one of the most popular tracking techniques. Yet the present landscape of computational QPN models still struggles with producing open software implementations. Focusing on this gap, we have developed and extensively benchmarked a stack of models based on different optical flow algorithms for the tracking step and a set of parsimonious extrapolation procedures based on image warping and advection. We demonstrate that these models provide skillful predictions comparable with or even superior to state-of-the-art operational software. Our software library ("rainymotion") for precipitation nowcasting is written in the Python programming language and openly available at GitHub (https://github.com/hydrogo/rainymotion, Ayzel et al., 2019). That way, the library may serve as a tool for providing fast, free, and transparent solutions that could serve as a benchmark for further model development and hypothesis testing - a benchmark that is far more advanced than the conventional benchmark of Eulerian persistence commonly used in QPN verification experiments.}, language = {en} } @article{SiegSchinkoVogeletal.2019, author = {Sieg, Tobias and Schinko, Thomas and Vogel, Kristin and Mechler, Reinhard and Merz, Bruno and Kreibich, Heidi}, title = {Integrated assessment of short-term direct and indirect economic flood impacts including uncertainty quantification}, series = {PLoS ONE}, volume = {14}, journal = {PLoS ONE}, number = {4}, publisher = {Public Library of Science}, address = {San Francisco}, issn = {1932-6203}, doi = {10.1371/journal.pone.0212932}, pages = {21}, year = {2019}, abstract = {Understanding and quantifying total economic impacts of flood events is essential for flood risk management and adaptation planning. Yet, detailed estimations of joint direct and indirect flood-induced economic impacts are rare. In this study an innovative modeling procedure for the joint assessment of short-term direct and indirect economic flood impacts is introduced. The procedure is applied to 19 economic sectors in eight federal states of Germany after the flood events in 2013. The assessment of the direct economic impacts is object-based and considers uncertainties associated with the hazard, the exposed objects and their vulnerability. The direct economic impacts are then coupled to a supply-side Input-Output-Model to estimate the indirect economic impacts. The procedure provides distributions of direct and indirect economic impacts which capture the associated uncertainties. The distributions of the direct economic impacts in the federal states are plausible when compared to reported values. The ratio between indirect and direct economic impacts shows that the sectors Manufacturing, Financial and Insurance activities suffered the most from indirect economic impacts. These ratios also indicate that indirect economic impacts can be almost as high as direct economic impacts. They differ strongly between the economic sectors indicating that the application of a single factor as a proxy for the indirect impacts of all economic sectors is not appropriate.}, language = {en} } @article{KleinwaechterSchelerSchreiberetal.2019, author = {Kleinw{\"a}chter, Lutz and Scheler, Wolfgang and Schreiber, Wilfried and Thielicke, Hubert}, title = {Entmilitarisierung der Sicherheit!}, series = {WeltTrends : das außenpolitische Journal}, volume = {151}, journal = {WeltTrends : das außenpolitische Journal}, publisher = {WeltTrends}, address = {Potsdam}, isbn = {978-3-947802-05-0}, issn = {0944-8101}, pages = {46 -- 50}, year = {2019}, language = {de} } @article{Thielicke2019, author = {Thielicke, Hubert}, title = {Der Lotse ging von Bord?}, series = {WeltTrends : das außenpolitische Journal}, volume = {27}, journal = {WeltTrends : das außenpolitische Journal}, number = {151}, publisher = {WeltTrends}, address = {Potsdam}, isbn = {978-3-947802-05-0}, issn = {0944-8101}, pages = {14 -- 17}, year = {2019}, language = {de} } @phdthesis{Schleicher2019, author = {Schleicher, Anja Maria}, title = {The significance of clay minerals in active fault zones}, school = {Universit{\"a}t Potsdam}, pages = {167}, year = {2019}, abstract = {Die vorliegende Habilitationsschrift umfasst Forschungsergebnisse aus Studien, die sich mit Fluid-Gesteins-Wechselwirkungen und Deformationsprozessen in aktiven St{\"o}rungszonen befassen, wobei der Einfluss der Tonminerale auf das geochemische und hydromechanische Verhalten dieser St{\"o}rungen im Vordergrund steht. Kernproben (core) und Bohrklein (cuttings) aus vier verschiedenen Bohrprojekten an der San Andreas St{\"o}rung (USA), der Nankai Trough Subduktionszone und der Japan Trench Subduktionszone (Japan), sowie der Alpine St{\"o}rung in Neuseeland wurden untersucht. Die von ICDP (International Continental Scientific Drilling Program) und IODP (International Ocean Discovery Program) unterst{\"u}tzten Projekte verfolgen alle das Ziel, das Verhalten von Erdbeben besser zu verstehen. In Kapitel 1 werden in einer kurzen Einleitung die allgemeinen thematischen Grundlagen und Ziele der Arbeit beschrieben. Kapitel 2 umfasst den Stand der Forschung, eine kurze Beschreibung der einzelnen Bohrprojekte und Standorte, sowie eine Zusammenfassung der wichtigsten Messmethoden. Kapitel 3 beinhaltet insgesamt zehn wissenschaftliche Arbeiten, die alle in einem methodisch-thematischen Zusammenhang stehen. Die Manuskripte wurden in den Jahren 2006-2015 ver{\"o}ffentlicht, wobei weitere Arbeiten aus diesem Themenbereich im Literaturverzeichnis vermerkt sind. Sie gehen auf unterschiedliche Fragestellungen um die Bildung und das Verhalten von Tonmineralen in aktiven St{\"o}rungszonen ein. Insgesamt sechs Publikationen beinhalten Daten und Forschungsergebnisse, die im Rahmen des SAFOD Projektes, USA (San Andreas Fault Observatory at Depth) erstellt wurden. Hier wurde vor allem auf die Fluid-Gesteins-Wechselwirkungsprozesse im St{\"o}rungsgestein und die daraus resultierende Bildung von Tonmineralen eingegangen. Drei weitere Arbeiten wurden im Rahmen des NanTroSEIZE Projektes, Japan (Nankai Trough Seismogenic Zone Experiment) und des JFAST Projektes, Japan (Japan Trench Fast Drilling Project) erstellt. Hier steht vor allem das Verhalten von quellf{\"a}higen Tonmineralen auf sich {\"a}ndernde Umgebungsbedingungen (z.B. Temperatur und Feuchtigkeit) im Mittelpunkt. Die zehnte hier vorgestellte Ver{\"o}ffentlichung betrifft Analysen rund um das DFDP Projekt (Deep Fault Drilling Project) in Neuseeland, wobei hier die Deformation von Tonmineralen und das hydro-mechanische Verhalten der St{\"o}rungszone im Vordergrund stehen. In neun Ver{\"o}ffentlichungen war ich als Erstautor f{\"u}r die Vorbereitung des Projektes, das Erstellen der Daten und die Fertigstellung der Manuskripte zust{\"a}ndig. In einer Publikation war ich als Mitautorin f{\"u}r die elektronenmikroskopischen Analysen und deren Interpretation verantwortlich. Die wichtigsten Ergebnisse der in Kapitel 3 vorgelegten Arbeiten werden in Kapitel 4 unter Ber{\"u}cksichtigung neuer Publikationen diskutiert. Nach der Beschreibung der Thesen in Kapitel 5 werden in Kapitel 6 „Outlook" die Highlights zuk{\"u}nftiger Forschungspl{\"a}ne am GFZ n{\"a}her beschrieben. Die Habilitationsschrift endet mit dem Anhang, in welchem unter anderem das Laborequipment genauer beschrieben wird, sowie die Publikationen, Konferenzbeitr{\"a}ge und Lehrbeitr{\"a}ge aufgelistet sind.}, language = {en} } @phdthesis{Moffitt2019, author = {Moffitt, Ursula Elinor}, title = {On being and belonging}, series = {Othering, islamophobia, and identity in contemporary Germany}, journal = {Othering, islamophobia, and identity in contemporary Germany}, school = {Universit{\"a}t Potsdam}, pages = {149}, year = {2019}, language = {en} } @phdthesis{Tinpun2019, author = {Tinpun, Kittisak}, title = {Relative rank of infinite full transformation semigroups with restricted range}, school = {Universit{\"a}t Potsdam}, year = {2019}, language = {en} } @article{ZeuschnerParpiievPezeriletal.2019, author = {Zeuschner, Steffen Peer and Parpiiev, Tymur and Pezeril, Thomas and Hillion, Arnaud and Dumesnil, Karine and Anane, Abdelmadjid and Pudell, Jan-Etienne and Willig, Lisa and R{\"o}ssle, Matthias and Herzog, Marc and Reppert, Alexander von and Bargheer, Matias}, title = {Tracking picosecond strain pulses in heterostructures that exhibit giant magnetostriction}, series = {Structural Dynamics}, volume = {6}, journal = {Structural Dynamics}, number = {2}, publisher = {AIP Publishing LLC}, address = {Melville, NY}, issn = {2329-7778}, doi = {10.1063/1.5084140}, pages = {9}, year = {2019}, abstract = {We combine ultrafast X-ray diffraction (UXRD) and time-resolved Magneto-Optical Kerr Effect (MOKE) measurements to monitor the strain pulses in laser-excited TbFe2/Nb heterostructures. Spatial separation of the Nb detection layer from the laser excitation region allows for a background-free characterization of the laser-generated strain pulses. We clearly observe symmetric bipolar strain pulses if the excited TbFe2 surface terminates the sample and a decomposition of the strain wavepacket into an asymmetric bipolar and a unipolar pulse, if a SiO2 glass capping layer covers the excited TbFe2 layer. The inverse magnetostriction of the temporally separated unipolar strain pulses in this sample leads to a MOKE signal that linearly depends on the strain pulse amplitude measured through UXRD. Linear chain model simulations accurately predict the timing and shape of UXRD and MOKE signals that are caused by the strain reflections from multiple interfaces in the heterostructure.}, language = {en} } @phdthesis{Vietze2019, author = {Vietze, Jana}, title = {Social context as a resource for cultural belonging and adjustment}, school = {Universit{\"a}t Potsdam}, pages = {148}, year = {2019}, language = {en} } @phdthesis{John2019, author = {John, Emanuel}, title = {Die Negativit{\"a}t des Sittlichen}, series = {Praktische Philosophie ; 95}, journal = {Praktische Philosophie ; 95}, publisher = {Alber}, address = {Freiburg}, isbn = {978-3-495-49059-4}, school = {Universit{\"a}t Potsdam}, pages = {339}, year = {2019}, abstract = {Hat f{\"u}r Personen eine ethische Auseinandersetzung mit ihrem Leiden an Problemen und Konflikten gegen{\"u}ber strategischen und technischen L{\"o}sungen eine Bedeutung? Diese Abhandlung zeigt, dass Ans{\"a}tze philosophischer Ethik, die von formalen Prinzipien, menschlichen Lebensformen oder sozialen Praktiken ausgehen, diese Frage unzureichend beantworten. Zu deren Beantwortung werden stattdessen ethische Subjektivit{\"a}t in der Klage {\"u}ber Leid, ethische {\"U}berlegungen als Negation von Leid und ethischer Dialog als {\"U}berwindung von Leid er{\"o}rtert.}, language = {de} } @article{ChoiSchmidtTinnefeldetal.2019, author = {Choi, Youngeun and Schmidt, Carsten and Tinnefeld, Philip and Bald, Ilko and R{\"o}diger, Stefan}, title = {A new reporter design based on DNA origami nanostructures for quantification of short oligonucleotides using microbeads}, series = {Scientific Reports}, journal = {Scientific Reports}, number = {9}, publisher = {Macmillan Publishers Limited}, address = {London}, issn = {2045-2322}, doi = {10.1038/s41598-019-41136-x}, pages = {8}, year = {2019}, abstract = {The DNA origami technique has great potential for the development of brighter and more sensitive reporters for fluorescence based detection schemes such as a microbead-based assay in diagnostic applications. The nanostructures can be programmed to include multiple dye molecules to enhance the measured signal as well as multiple probe strands to increase the binding strength of the target oligonucleotide to these nanostructures. Here we present a proof-of-concept study to quantify short oligonucleotides by developing a novel DNA origami based reporter system, combined with planar microbead assays. Analysis of the assays using the VideoScan digital imaging platform showed DNA origami to be a more suitable reporter candidate for quantification of the target oligonucleotides at lower concentrations than a conventional reporter that consists of one dye molecule attached to a single stranded DNA. Efforts have been made to conduct multiplexed analysis of different targets as well as to enhance fluorescence signals obtained from the reporters. We therefore believe that the quantification of short oligonucleotides that exist in low copy numbers is achieved in a better way with the DNA origami nanostructures as reporters.}, language = {en} } @article{HadzicEckesteinSchugardt2019, author = {Hadzic, Miralem and Eckestein, Max Lennart and Schugardt, Monique}, title = {The Impact of Sodium Bicarbonate on Performance in Response to Exercise Duration in Athletes}, series = {Journal of sports science \& medicine : JSSM}, journal = {Journal of sports science \& medicine : JSSM}, number = {18}, publisher = {Department of Sports Medicine, Medical Faculty of Uludag University}, address = {Bursa, Turkey}, issn = {1303-2968}, pages = {271 -- 281}, year = {2019}, abstract = {According to recent literature sodium bicarbonate (NaHCO3) has been proposed as a performance enhancing aid by reducing acidosis during exercise. The aim of the current review is to investigate if the duration of exercise is an essential factor for the effect of NaHCO3. To collect the latest studies from electronic database of PubMed, study publication time was restricted from December 2006 to December 2016. The search was updated in July 2018. The studies were divided into exercise durations of > 4 or ≤ 4 minutes for easier comparability of their effects in different exercises. Only randomized controlled trials were included in this review. Of the 775 studies, 35 met the inclusion criteria. Study design, subjects, effects as well as outcome criteria were inconsistent throughout the studies. Seventeen of these studies reported performance enhancing effects after supplementing NaHCO3. Eleven of twenty studies with exercise duration of ≤ 4 minutes showed positive and four diverse results after supplementing NaHCO3. On the other hand six of fifteen studies with an exercise duration of >4 minutes showed performance enhancing and two studies showed diverse results. Consequently, the duration of exercise might be influential for inducing a performance enhancing effect when supplementing NaHCO3, but to which extent, remains unclear due to the inconsistencies in the study results.}, language = {en} } @article{GrubicWierzba2019, author = {Grubic, Mira and Wierzba, Marta}, title = {Presupposition Accommodation of the German Additive Particle auch (= "too")}, series = {Frontiers in Communication}, volume = {4}, journal = {Frontiers in Communication}, publisher = {Frontiers Media}, address = {Lausanne}, issn = {2297-900X}, doi = {10.3389/fcomm.2019.00015}, pages = {18}, year = {2019}, abstract = {Presupposition triggers differ with respect to whether their presupposition is easily accommodatable. The presupposition of focus-sensitive additive particles like also or too is often classified as hard to accommodate, i.e., these triggers are infelicitous if their presupposition is not entailed by the immediate linguistic or non-linguistic context. We tested two competing accounts for the German additive particle auch concerning this requirement: First, that it requires a focus alternative to the whole proposition to be salient, and second, that it merely requires an alternative to the focused constituent (e.g., an individual) to be salient. We conducted two experiments involving felicity judgments as well as questions asking for the truth of the presupposition to be accommodated. Our results suggest that the latter account is too weak: mere previous mention of a potential alternative to the focused constituent is not enough to license the use of auch. However, our results also suggest that the former account is too strong: when an alternative of the focused constituent is prementioned and certain other accommodation-enhancing factors are present, the context does not have to entail the presupposed proposition. We tested the following two potentially accommodation-enhancing factors: First, whether the discourse can be construed to be from the perspective of the individual that the presupposition is about, and second, whether the presupposition is needed to establish coherence between the host sentence of the additive particle and the preceding context. The factor coherence was found to play a significant role. Our results thus corroborate the results of other researchers showing that discourse participants go to great lengths in order to identify a potential presupposition to accommodate, and we contribute to these results by showing that coherence is one of the factors that enhance accommodation.}, language = {en} } @article{PilzDelgadoVossetal.2019, author = {Pilz, Tobias and Delgado, Jos{\´e} Miguel Martins and Voss, Sebastian and Vormoor, Klaus Josef and Francke, Till and Cunha Costa, Alexandre and Martins, Eduardo and Bronstert, Axel}, title = {Seasonal drought prediction for semiarid northeast Brazil}, series = {Hydrology and Earth System Sciences}, volume = {23}, journal = {Hydrology and Earth System Sciences}, publisher = {Copernicus Publications}, address = {G{\"o}ttingen}, issn = {1027-5606}, doi = {10.5194/hess-23-1951-2019}, pages = {1951 -- 1971}, year = {2019}, abstract = {The semiarid northeast of Brazil is one of the most densely populated dryland regions in the world and recurrently affected by severe droughts. Thus, reliable seasonal forecasts of streamflow and reservoir storage are of high value for water managers. Such forecasts can be generated by applying either hydrological models representing underlying processes or statistical relationships exploiting correlations among meteorological and hydrological variables. This work evaluates and compares the performances of seasonal reservoir storage forecasts derived by a process-based hydrological model and a statistical approach. Driven by observations, both models achieve similar simulation accuracies. In a hindcast experiment, however, the accuracy of estimating regional reservoir storages was considerably lower using the process-based hydrological model, whereas the resolution and reliability of drought event predictions were similar by both approaches. Further investigations regarding the deficiencies of the process-based model revealed a significant influence of antecedent wetness conditions and a higher sensitivity of model prediction performance to rainfall forecast quality. Within the scope of this study, the statistical model proved to be the more straightforward approach for predictions of reservoir level and drought events at regionally and monthly aggregated scales. However, for forecasts at finer scales of space and time or for the investigation of underlying processes, the costly initialisation and application of a process-based model can be worthwhile. Furthermore, the application of innovative data products, such as remote sensing data, and operational model correction methods, like data assimilation, may allow for an enhanced exploitation of the advanced capabilities of process-based hydrological models.}, language = {en} } @phdthesis{Weber2019, author = {Weber, Marie-Christin}, title = {Performance Enhancing Strategies in Different Negotiation Phases}, publisher = {Kovac}, address = {Hamburg}, isbn = {978-3-339-10946-0}, school = {Universit{\"a}t Potsdam}, pages = {78}, year = {2019}, abstract = {The present dissertation investigates profit-maximizing behavior in different phases of the negotiation process. Over the last decades, research dealt in detail with behavior of negotiation actors with the aim of identifying performance enhancing factors. The majority of those studies focused on behavior within the main negotiation phase. This work, however, considers phases which are, so far, underrepresented in research but show an impact on the negotiation process and outcome. Those phases are the pre-negotiation, the first offer, and the main negotiation phase which is further divided by breaks into several rounds. Within these phases, traits of behavior are analyzed that can be used strategically in order to impact the negotiation outcome. The dissertation contains three papers, each one dealing with a specific strategy within one phase. The first paper investigates communication behavior in the pre-negotiation phase. Content analysis of a negotiation experiment shows that the employment of positive communication elements such as the generation of enthusiasm for an upcoming project results in an increase of agreements on entering a negotiation and also leads to a higher willingness to make concessions. The second paper explores the impact of a semantic first anchor, which does not contain a specific number but only gives a numerical direction, on the opponent's concession behavior and the final outcome. By means of two scenario-based questionnaires and a negotiation experiment it is demonstrated that semantic offers reveal an anchoring effect and lead to better negotiation outcomes. The third paper deals with the introduction of breaks and their effect on the following negotiation process. Therefore, content and outcome of another negotiation experiment are investigated. The analysis shows that breaks evoke a dominant impression but can negatively impact the atmosphere and thereby also the outcome. Finally, the gathered insights are brought together and discussed. The dissertation closes with implications for practice, limitations of the work, and ideas for future research.}, language = {en} } @article{SpiekermannHarderGilmoreetal.2019, author = {Spiekermann, Georg and Harder, M. and Gilmore, Keith and Zalden, Peter and Sahle, Christoph J. and Petitgirard, Sylvain and Wilke, Max and Biedermann, Nicole and Weis, Thomas and Morgenroth, Wolfgang and Tse, John S. and Kulik, E. and Nishiyama, Norimasa and Yava{\c{s}}, Hasan and Sternemann, Christian}, title = {Persistent Octahedral Coordination in Amorphous GeO₂ Up to 100 GPa by Kβ'' X-Ray Emission Spectroscopy}, series = {Physical Review X}, volume = {9}, journal = {Physical Review X}, number = {1}, publisher = {American Physical Society by the American Institute of Physics}, address = {Melville, NY}, issn = {2469-9926}, doi = {10.1103/PhysRevX.9.011025}, pages = {10}, year = {2019}, abstract = {We measure valence-to-core x-ray emission spectra of compressed crystalline GeO₂ up to 56 GPa and of amorphous GeO₂ up to 100 GPa. In a novel approach, we extract the Ge coordination number and mean Ge-O distances from the emission energy and the intensity of the Kβ'' emission line. The spectra of high-pressure polymorphs are calculated using the Bethe-Salpeter equation. Trends observed in the experimental and calculated spectra are found to match only when utilizing an octahedral model. The results reveal persistent octahedral Ge coordination with increasing distortion, similar to the compaction mechanism in the sequence of octahedrally coordinated crystalline GeO₂ high-pressure polymorphs.}, language = {en} } @phdthesis{Farhan2019, author = {Farhan, Muhammad}, title = {Multifunctional reprogrammable actuators based on polymer networks with crystallizable segments}, school = {Universit{\"a}t Potsdam}, year = {2019}, abstract = {Soft polymeric materials, which can change their shape reversibly in response to external stimuli, can serve as actuating components in robotic systems. Besides electroactive polymers (EAP), hydrogels and liquid crystalline elastomers (LCE), crosslinked crystallizable shape-memory polymers networks have been introduced recently as reprogrammable thermo-reversible actuators. The integration of additional functions in such materials will lead to multifunctional polymeric actuators, which meet the complex requirements of modern robotic applications. The primary aim of this thesis was to achieve multifunctional reprogrammable thermo-reversible actuators based on thermoplastic polymers. Here, three different actuators providing additional functionalities such as surface modification capability (i), self-healing capability (ii) or a tailorable non-response function enabling noncontinuous multi-step motions (iii) were realized. At first, it was hypothesized that surface modifiable polymeric actuators (i) can be achieved by crosslinking of crystallizable thermoplastic terpolymers having reactive moieties, where subsequent thermomechanical programming enables reversible actuations while the sustained reactive groups allow post surface modification. For the second actuator type (ii) it was hypothesized that self-healing during reprogramming of polymeric actuators prepared by crosslinking of crystallizable linear homopolymers, can be achieved by adjusting the amount of freely interpenetrating extractable polymer moieties. Finally, it was hypothesized that thermo-reversible actuators providing a non-response function (iii) and thus enable multistep motions upon continuous normal stimulation, can be achieved by a crosslinked blend of two thermoplastic polymers with co-continuous morphology having a well-separated melting and crystallization transitions. In addition, these actuators can be physically reprogrammed by heating above all melting transitions to provide a different actuating shape. In this study, surface functionalizable actuators were realized from crosslinked poly[(ethylene)-co-(ethyl acrylate)-co-(maleic anhydride)] (cPEEAMA) based networks. Here crystallizable polyethylene (PE) segments should serve as actuation segments, ethyl acrylate (EA) provides elasticity to the system required for deformation, while reactive maleic anhydride (MA) will be used as chemically modifiable entities for post surface modification. Networks with varied crosslink density were prepared and its effect on thermomechanical properties as well as actuation performance was analyzed. Cyclic thermomechanical experiments were employed to investigate the actuation capability, which revealed a reversible actuation (ε׳rev) between 5 and 15\%. Fourier-transform infrared spectroscopy (FTIR) measurements confirmed that MA groups were sustained at the sample surface after processing and programming, which could be modified by reaction with ethylene diamine. Such amine functionalization allows the attachment of bioactive molecules to the actuator surface, which might provide a route to actuating substrates for biotechnology. Self-healable actuating materials were realized by poly(ε-caprolactone) (PCL) polymer networks with extractable linear PCL fractions of 5 to 60 wt\%. A detailed evaluation of the actuation capabilities by cyclic experiments revealed the highest reversible change in strain of Δε = 24\% for the cPCL network with 30 wt\% of linear polymer. The thermal treatment of damaged samples resulted in the healing of the network when heated to 80 °C. Here a linear polymer fraction ≥ 30 wt\% was necessary to achieve a self-healing efficiency of ≥ 50\%. The application of such high temperatures erases the programmed actuator shape and at the same time allows to reprogram a new actuating shape. Such sustainable actuators with self-healing function are of great interest for future robotic devices. Afore mentioned actuators operate continuously between two shapes and their movements can only be interrupted when the temperature is stopped. To overcome this limitation, noncontinuously responding actuators enabling multi-step actuation were realized from crosslinked blend networks prepared from PCL and poly[(ethylene)-co-(vinyl acetate)] (PEVA). These polymers (PCL and PEVA) were selected due to their immiscible character, where crystallizable PE and PCL segments provide two different actuation units, while vinyl acetate (VA) segment enabled sufficient elasticity of the system. A gap of 20 K in the melting and crystallization temperature of PE and PCL was achieved by selecting PEVA with 5 wt\% VA content (cPCL-PEVA5) providing a co-continuous phase morphology. Cyclic thermomechanical investigations were employed to investigate noncontinuous actuation, which revealed a high Δε = 25\% with a similar contribution from PCL and PE actuation units with a non-response region in the temperature range from 50 to 71 °C in heating step and 30 to 60 °C in cooling step. The actuation related to PCL part changed from 13 to 2\% by altering the heating and cooling rates from 3 to 10 K·min-1. Free-standing reversible noncontinuous actuation was realized by rotating demonstrator which exhibits reversible angle change in a custom-made setup. For this purpose, cPCL-PEVA5 stripe was programmed by twisting and reversible rotational actuation was realized from 0 to 180° while pausing in the 90° position during non-response. These blends can be physically programmed to perform reversible noncontinuous actuations, while the programmed geometry can be erased by heating it to temperature above all melting transitions. By physically reprogramming of the material various different actuation modes can be obtained. Such a noncontinuous actuator would be relevant for designing interruptive actuating soft robots at continuous trigger signals.}, language = {en} } @phdthesis{Jennek2019, author = {Jennek, Julia}, title = {Binnendifferenzierung in der Sekundarstufe I}, school = {Universit{\"a}t Potsdam}, pages = {214}, year = {2019}, language = {de} } @article{LonnemannLiZhaoetal.2019, author = {Lonnemann, Jan and Li, Su and Zhao, Pei and Linkersd{\"o}rfer, Janosch and Lindberg, Sven and Hasselhorn, Marcus}, title = {Differences in Counting Skills Between Chinese and German Children Are Accompanied by Differences in Processing of Approximate Numerical Magnitude Information}, series = {Frontiers in Psychology}, volume = {9}, journal = {Frontiers in Psychology}, publisher = {Frontiers Research Foundation}, address = {Lausanne}, issn = {1664-1078}, doi = {10.3389/fpsyg.2018.02656}, pages = {8}, year = {2019}, abstract = {Human beings are supposed to possess an approximate number system (ANS) dedicated to extracting and representing approximate numerical magnitude information as well as an object tracking system (OTS) for the rapid and accurate enumeration of small sets. It is assumed that the OTS and the ANS independently contribute to the acquisition of more elaborate numerical concepts. Chinese children have been shown to exhibit more elaborate numerical concepts than their non-Chinese peers, but it is still an open question whether similar cross-national differences exist with regard to the underlying systems, namely the ANS and the OTS. In the present study, we investigated this question by comparing Chinese and German preschool children with regard to their performance in a non-symbolic numerical magnitude comparison task (assessing the ANS) and in an enumeration task (assessing the OTS). In addition, we compared children's counting skills. To ensure that possible between-group differences could not be explained by differences in more general performance factors, we also assessed children's reasoning ability and processing speed. Chinese children showed a better counting performance and a more accurate performance in the non-symbolic numerical magnitude comparison task. These differences in performance could not be ascribed to differences in reasoning abilities and processing speed. In contrast, Chinese and German children did not differ significantly in the enumeration of small sets. The superior counting performance of Chinese children was thus found to be reflected in the ANS but not in the OTS.}, language = {en} } @article{FayUrbachScheithauer2019, author = {Fay, Doris and Urbach, Tina and Scheithauer, Linda}, title = {What motivates you right now?}, series = {Measurement Instruments for the Social Sciences}, volume = {2}, journal = {Measurement Instruments for the Social Sciences}, number = {5}, publisher = {BioMed Central}, address = {London}, issn = {2523-8930}, doi = {10.1186/s42409-019-0007-7}, 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} } @article{WrightWachs2019, author = {Wright, Michelle F. and Wachs, Sebastian}, title = {Does Peer Rejection Moderate the Associations among Cyberbullying Victimization, Depression, and Anxiety among Adolescents with Autism Spectrum Disorder?}, series = {Children}, volume = {6}, journal = {Children}, publisher = {MDPI}, address = {Basel}, issn = {2227-9067}, doi = {10.3390/children6030041}, pages = {12}, year = {2019}, abstract = {While the consequences of cyberbullying victimization have received some attention in the literature, to date, little is known about the multiple types of strains in adolescents' lives, such as whether cyberbullying victimization and peer rejection increase their vulnerability to depression and anxiety. Even though some research found that adolescents with disabilities show higher risk for cyberbullying victimization, most research has focused on typically developing adolescents. Thus, the present study focused on examining the moderating effect of peer rejection in the relationships between cyberbullying victimization, depression, and anxiety among adolescents with autism spectrum disorder. There were 128 participants (89\% male; ages ranging from 11-16 years old) with autism spectrum disorder in the sixth, seventh, or eighth grade at 16 middle schools in the United States. Participants completed questionnaires on cyberbullying victimization, peer rejection, depression, and anxiety. Results revealed that cyberbullying victimization was associated positively with peer rejection, anxiety, and depression among adolescents with autism spectrum disorder. Further, peer rejection was linked positively with depression and anxiety. Peer rejection moderated the positive relationship between cyberbullying victimization and depression, but not anxiety. Implications for prevention programs and future research are discussed.}, language = {en} } @article{KalinowskiGronostajVock2019, author = {Kalinowski, Eva and Gronostaj, Anna and Vock, Miriam}, title = {Effective Professional Development for Teachers to Foster Students' Academic Language Proficiency Across the Curriculum}, series = {AERA Open}, volume = {5}, journal = {AERA Open}, number = {1}, publisher = {Sage}, address = {Thousand Oaks}, issn = {2332-8584}, doi = {10.1177/2332858419828691}, pages = {1 -- 23}, year = {2019}, abstract = {This review summarizes features of professional development programs that aim to prepare in-service teachers to improve students' academic language proficiency when teaching subject areas. The 38 studies reviewed suggest that all of the profiled interventions were effective to some extent. The programs share many characteristics considered important in successful teacher professional development across different subject areas. They also include some features that appear to be specific to teacher training in this particular domain. This review supports the idea that professional development helps change teachers' thinking and practice and benefits students, if certain features are taken into consideration in its design and implementation.}, language = {en} } @article{SarhanKoopmanSchuetzetal.2019, author = {Sarhan, Radwan Mohamed and Koopman, Wouter-Willem Adriaan and Schuetz, Roman and Schmid, Thomas and Liebig, Ferenc and Koetz, Joachim and Bargheer, Matias}, title = {The importance of plasmonic heating for the plasmondriven photodimerization of 4-nitrothiophenol}, series = {Scientific Reports}, volume = {9}, journal = {Scientific Reports}, publisher = {Macmillan Publishers Limited}, address = {London}, issn = {2045-2322}, doi = {10.1038/s41598-019-38627-2}, pages = {8}, year = {2019}, abstract = {Metal nanoparticles form potent nanoreactors, driven by the optical generation of energetic electrons and nanoscale heat. The relative influence of these two factors on nanoscale chemistry is strongly debated. This article discusses the temperature dependence of the dimerization of 4-nitrothiophenol (4-NTP) into 4,4′-dimercaptoazobenzene (DMAB) adsorbed on gold nanoflowers by Surface-Enhanced Raman Scattering (SERS). Raman thermometry shows a significant optical heating of the particles. The ratio of the Stokes and the anti-Stokes Raman signal moreover demonstrates that the molecular temperature during the reaction rises beyond the average crystal lattice temperature of the plasmonic particles. The product bands have an even higher temperature than reactant bands, which suggests that the reaction proceeds preferentially at thermal hot spots. In addition, kinetic measurements of the reaction during external heating of the reaction environment yield a considerable rise of the reaction rate with temperature. Despite this significant heating effects, a comparison of SERS spectra recorded after heating the sample by an external heater to spectra recorded after prolonged illumination shows that the reaction is strictly photo-driven. While in both cases the temperature increase is comparable, the dimerization occurs only in the presence of light. Intensity dependent measurements at fixed temperatures confirm this finding.}, language = {en} }