TY - JOUR A1 - Rousseau, Batiste A1 - Erard, Stéphane A1 - Beck, P. A1 - Quirico, Eric A1 - Schmitt, B. A1 - Brissaud, O. A1 - Montes-Hernandez, G. A1 - Capaccioni, F. A1 - Filacchione, Gianrico A1 - Bockelee-Morvan, Dominique A1 - Leyrat, C. A1 - Ciarniello, M. A1 - Raponi, Andrea A1 - Kappel, David A1 - Arnold, G. A1 - Moroz, L. V. A1 - Palomba, Ernesto A1 - Tosi, Federico T1 - Laboratory simulations of the Vis-NIR spectra of comet 67P using sub-mu m sized cosmochemical analogues JF - Icarus : international journal of solar system studies N2 - Laboratory spectral measurements of relevant analogue materials were performed in the framework of the Rosetta mission in order to explain the surface spectral properties of comet 67P. Fine powders of coal, iron sulphides, silicates and their mixtures were prepared and their spectra measured in the Vis-IR range. These spectra are compared to a reference spectrum of 67P nucleus obtained with the VIRTIS/Rosetta instrument up to 2.7 mu m, excluding the organics band centred at 3.2 mu m. The species used are known to be chemical analogues for cometary materials which could be present at the surface of 67P. Grain sizes of the powders range from tens of nanometres to hundreds of micrometres. Some of the mixtures studied here actually reach the very low reflectance level observed by VIRTIS on 67P. The best match is provided by a mixture of sub-micron coal, pyrrhotite, and silicates. Grain sizes are in agreement with the sizes of the dust particles detected by the GIADA, MIDAS and COSIMA instruments on board Rosetta. The coal used in the experiment is responsible for the spectral slope in the visible and infrared ranges. Pyrrhotite, which is strongly absorbing, is responsible for the low albedo observed in the NIR. The darkest components dominate the spectra, especially within intimate mixtures. Depending on sample preparation, pyrrhotite can coat the coal and silicate aggregates. Such coating effects can affect the spectra as much as particle size. In contrast, silicates seem to play a minor role. (c) 2017 Elsevier Inc. All rights reserved. KW - Comets KW - Comets nucleus KW - Comets composition KW - Spectroscopy KW - Experimental techniques Y1 - 2018 U6 - https://doi.org/10.1016/j.icarus.2017.10.015 SN - 0019-1035 SN - 1090-2643 VL - 306 SP - 306 EP - 318 PB - Elsevier CY - San Diego ER - TY - JOUR A1 - Roux, E. A1 - Moorkamp, Max A1 - Jones, Alan G. A1 - Bischoff, Monika A1 - Endrun, Brigitte A1 - Lebedev, Sergei A1 - Meier, Thomas T1 - Joint inversion of long-period magnetotelluric data and surface-wave dispersion curves for anisotropic structure application to data from Central Germany JF - Geophysical research letters N2 - Geophysical datasets sensitive to different physical parameters can be used to improve resolution of Earth's internal structure. Herein, we jointly invert long-period magnetotelluric (MT) data and surface-wave dispersion curves. Our approach is based on a joint inversion using a genetic algorithm for a one-dimensional (1-D) isotropic structure, which we extend to 1-D anisotropic media. We apply our new anisotropic joint inversion to datasets from Central Germany demonstrating the capacity of our joint inversion algorithm to establish a 1-D anisotropic model that fits MT and seismic datasets simultaneously and providing new information regarding the deep structure in Central Germany. The lithosphere/asthenosphere boundary is found at approx. 84 km depth and two main anisotropic layers with coincident most conductive/seismic fast-axis direction are resolved at lower crustal and asthenospheric depths. We also quantify the amount of seismic and electrical anisotropy in the asthenosphere showing an emerging agreement between the two anisotropic coefficients. Y1 - 2011 U6 - https://doi.org/10.1029/2010GL046358 SN - 0094-8276 VL - 38 IS - 3 PB - American Geophysical Union CY - Washington ER - TY - JOUR A1 - Roverato, Matteo A1 - Larrea, Patricia A1 - Casado, Ismael A1 - Mulas, Maurizio A1 - Bejar, Gustavo A1 - Bowman, Luke T1 - Characterization of the Cubilche debris avalanche deposit, a controversial case from the northern Andes, Ecuador JF - Journal of volcanology and geothermal research N2 - In areas characterized by many volcanoes, identifying the source of a deposit may not be trivial. This becomes much more complicated when looking for the source of a debris avalanche deposit (DAD), the common products of catastrophic volcanic edifice collapses. To overcome this problem, in this work a methodology is proposed based on the integration of texture features and areal distribution of the deposit, comparison between the petrography of the coarser clasts within the DAD and of the proximal products, grain-size analysis, and the volumetric estimations of the deposit and the volume missing from the volcanic edifice. This methodology has been tested to a DAD occurred near the city of Ibarra (Imbabura Province; Northern Ecuador), having a controversial source. Two main volcanic edifice are located in proximity of the DAD, the Cubilche volcano (3826 m.a.s.l.), located immediately south of and east of the colossal dormant Imbabura volcano. The former displays a sharp horseshoe shaped scar towards the north and inside this post-collapse edifice, that we name old Cubilche volcano (OCV), is located the young Cubilche volcano (YCV) that refilled a portion of the collapse scar and partially covered the southern flank of the OCV. Detailed knowledge of Cubilche volcano is critical because of its close proximity and interspersed activity with Imbabura volcano. In fact, Imbabura most recent edifice was built over the northwestern slope of the OCV and partially covered it. Recent studies linked the studied DAD to both Imbabura volcano as a product of its northern sector collapse, as well as neighboring Cubilche volcano. Our data points to Cubilche as the most likely source for this DAD. A perspective view of the shaded relief image of the present day OCV shows that the morphology of the volcano is well-preserved on its southern, eastern, and western flanks. This allows us to reconstruct the morphology of the OCV previous to the collapse through interpolation of elevation and altitude data of preserved flanks. A DEM of the present day topography was used for extrapolating the morphology. Using similar methodology, the post collapse base of the amphitheater was reconstructed by removing the relief of the present day YCV. The reconstructed topography of the OCV shows that it could have been a symmetric cone, reaching a maximum elevation of similar to 4100 m.a.s.l. with a lack volume of similar to 3.5 km(3). Based on this scenario, the deposit originated from the OCV main collapse should have a volume >3-3.5 km(3) in accordance to the volume calculated for the studied DAD. (C) 2018 Elsevier B.V. All rights reserved. KW - Volcanic collapse KW - Debris avalanche deposit KW - Volume reconstruction KW - Petrography KW - Ecuador KW - Andes Y1 - 2018 U6 - https://doi.org/10.1016/j.jvolgeores.2018.07.006 SN - 0377-0273 SN - 1872-6097 VL - 360 SP - 22 EP - 35 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Rowe, David T1 - Diskussionsreihe über Antisemitismus, Islamfeindlichkeit und die Notwendigkeit der Förderung des Dialogs zwischen den Kulturen JF - MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-39839 SN - 1434-2820 VL - 9 IS - 1 SP - 53 EP - 57 ER - TY - JOUR A1 - Rowe, David A1 - Thiele, Jan T1 - Mitgliedstaaten des Europarates BT - 7. Folge : Slowenien JF - MenschenRechtsMagazin : MRM ; Informationen, Meinungen, Analysen Y1 - 2004 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-39785 SN - 1434-2820 VL - 9 IS - 2 SP - 183 EP - 190 ER - TY - JOUR A1 - Rowe, John Carlos T1 - Disease, culture, and transnationalism in the Americas JF - Mobilisierte Kulturen Y1 - 2011 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-57345 SN - 2192-3019 SN - 2192-3027 IS - 1 SP - 71 EP - 87 ER - TY - JOUR A1 - Rowley, K. Michael A1 - Engel, Tilman A1 - Kulig, Kornelia T1 - Trunk and hip muscle activity during the Balance-Dexterity task in persons with and without recurrent low back pain JF - Journal of electromyography and kinesiology N2 - Coordination of the trunk and hips is crucial for successful dynamic balance in many activities of daily living. Persons with recurrent low back pain (rLBP), both while symptomatic and during periods of symptom remission, exhibit dysfunctional muscle activation patterns and coordination of these joints. In a novel dynamic balance task where persons in remission from rLBP exhibit dissociated trunk motion, it is unknown how trunk and hip musculature are coordinated. Activation of hip and trunk muscles were acquired from nineteen persons with and without rLBP during the Balance-Dexterity Task, which involves balancing on one limb while compressing an unstable spring with the other. There were no between-group differences in activation amplitude for any muscle groups tested. In back-healthy control participants, hip and trunk muscle activation amplitudes increased proportionally in response to the added instability of the spring (R = 0.837, p < 0.001). Increases in muscle activation amplitudes in the group in remission from rLBP were not proportional (R = 0.113, p = 0.655). Instead, hip muscle activation in this group was associated with task performance, i.e. dexterous control of the spring (R = 0.676, p = 0.002). These findings highlight atypical coordination of hip and trunk musculature potentially related to task demands in persons with rLBP even during remission from pain. KW - balance KW - low back pain KW - trunk and hip coordination KW - lumbopelvic Y1 - 2020 U6 - https://doi.org/10.1016/j.jelekin.2019.102378 SN - 1050-6411 SN - 1873-5711 VL - 50 PB - Elsevier Science CY - Amsterdam ER - TY - JOUR A1 - Roy, Hans A1 - Kallmeyer, Jens A1 - Adhikari, Rishi Ram A1 - Pockalny, Robert A1 - Jorgensen, Bo Barker A1 - D'Hondt, Steven T1 - Aerobic microbial respiration in 86-million-year-old deep-sea red clay JF - Science N2 - Microbial communities can subsist at depth in marine sediments without fresh supply of organic matter for millions of years. At threshold sedimentation rates of 1 millimeter per 1000 years, the low rates of microbial community metabolism in the North Pacific Gyre allow sediments to remain oxygenated tens of meters below the sea floor. We found that the oxygen respiration rates dropped from 10 micromoles of O-2 liter(-1) year(-1) near the sediment-water interface to 0.001 micromoles of O-2 liter(-1) year(-1) at 30-meter depth within 86 million-year-old sediment. The cell-specific respiration rate decreased with depth but stabilized at around 10(-3) femtomoles of O-2 cell(-1) day(-1) 10 meters below the seafloor. This result indicated that the community size is controlled by the rate of carbon oxidation and thereby by the low available energy flux. Y1 - 2012 U6 - https://doi.org/10.1126/science.1219424 SN - 0036-8075 VL - 336 IS - 6083 SP - 922 EP - 925 PB - American Assoc. for the Advancement of Science CY - Washington ER - TY - JOUR A1 - Roy, Parna A1 - Mukherjee, Arpita A1 - Mondal, Pritha A1 - Bhattacharyya, Biswajit A1 - Narayan, Awadhesh A1 - Pandey, Anshu T1 - Electronic structure and spectroscopy of I-III-VI2 nanocrystals BT - a perspective JF - The journal of physical chemistry : C, Nanomaterials and interfaces N2 - I-III-VI2 semiconductor nanocrystals have been applied to a host of energy conversion devices with great success. Large scale implementation of device concepts based on these materials has, however, been somewhat stymied by the strong role of defects in determining the optoelectronic characteristics of these materials. Here we present a perspective view of the role of electronic structure and defects on the physical properties, particularly the spectroscopy, of this family of materials. Applications of these materials are further discussed in this context. Y1 - 2022 U6 - https://doi.org/10.1021/acs.jpcc.1c10922 SN - 1932-7447 SN - 1932-7455 VL - 126 IS - 17 SP - 7364 EP - 7373 PB - American Chemical Society CY - Washington ER - TY - JOUR A1 - Roy, S. A1 - Pikovskij, Arkadij T1 - Spreading of energy in the Ding-Dong model JF - Chaos : an interdisciplinary journal of nonlinear science N2 - We study the properties of energy spreading in a lattice of elastically colliding harmonic oscillators (Ding-Dong model). We demonstrate that in the regular lattice the spreading from a localized initial state is mediated by compactons and chaotic breathers. In a disordered lattice, the compactons do not exist, and the spreading eventually stops, resulting in a finite configuration with a few chaotic spots. Y1 - 2012 U6 - https://doi.org/10.1063/1.3695369 SN - 1054-1500 VL - 22 IS - 2 PB - American Institute of Physics CY - Melville ER - TY - BOOK A1 - Rozanov, Vasilij V. T1 - Menschen des Mondlichts Y1 - 1995 SN - 3-86137-389-0 ER - TY - GEN A1 - Rozanski, Stanislaw A. A1 - Kremer, Friedrich A1 - Köberle, Peter A1 - Laschewsky, André T1 - Relaxation and charge transport in mixtures of zwitterionic polymers and inorganic salts N2 - Dielectric spectroscopy is employed to analyze the molecular dynamics and the charge transport in mixtures of zwitterionic polymers of the type poly{3 [N(-methacryloyloxyalkyl)] N, [N-dimethylammonio propanesulfonate] with sodium iodide in the frequency range of 10²Hz-10(up)7 Hz and in the temperature range of 110 K-400 K. The amount of inorganic salt added varies from 0-200 mol-% relative to the number of zwitterionic groups present in the polymer, contributing strongly to the conductivity. One relaxation process is observed whose relaxation rate depends strongly on the length of the aliphatic spacer between the polymethacrylate main chain and the zwitterionic group. Exhibiting an Arrhenius-like temperature depence with activation energy EA = 47 KJ/mol, this relaxation process is assigned to fluctuation of the quaternary ammonium groups in the side chains. At higher temperatures, the dielectric properties and the conductivity are primarily dominated by the mobile inorganic ions: conductivity strongly depends on the salt concentration, showing a pronounced electrode polarization effect. The frequency and salt concentration, dependences of the conductivity can be quantitatively described as hopping of charge carriers being subject to spatially randomly varying energy barriers. For the low-frequency regime and for the critical frequency marking the onset of the conductivity's dispersion, the Barton-Nakajima-Namikawa (BNN) relationship is fulfilled. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - paper 093 Y1 - 1995 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-17438 ER - TY - INPR A1 - Rozenblum, G. T1 - On some analytical index formulas related to operator-valued symbols N2 - For several classes of pseudodifferential operators with operator-valued symbol analytic index formulas are found. The common feature is that uasual index formulas are not valid for these operators. Applications are given to pseudodifferential operators on singular manifolds. T3 - Preprint - (2000) 16 Y1 - 2000 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-25811 ER - TY - BOOK A1 - Rozenblum, G. T1 - On some analytical index formulas related to operator-valued symbols T3 - Preprint / Universität Potsdam, Institut für Mathematik, Arbeitsgruppe Partiell Y1 - 2000 SN - 1437-739X PB - Univ. CY - Potsdam ER - TY - JOUR A1 - Rozinat, A A1 - Van der Aalst, Wil M. P. T1 - Conformance testing: Measuring the fit and appropriateness of event logs and process models N2 - Most information systems log events (e.g., transaction logs, audit traits) to audit and monitor the processes they support. At the same time, many of these processes have been explicitly modeled. For example, SAP R/3 logs events in transaction logs and there are EPCs (Event-driven Process Chains) describing the so-called reference models. These reference models describe how the system should be used. The coexistence of event logs and process models raises an interesting question: "Does the event log conform to the process model and vice versa?". This paper demonstrates that there is not a simple answer to this question. To tackle the problem, we distinguish two dimensions of conformance: fitness (the event log may be the result of the process modeled) and appropriateness (the model is a likely candidate from a structural and behavioral point of view). Different metrics have been defined and a Conformance Checker has been implemented within the ProM Framework Y1 - 2006 ER - TY - THES A1 - Roßbach, Naja Anja T1 - Die Sprache in Überschriften und Zwischenüberschriften deutscher Tageszeitungen T1 - The language of headlines and subheadings in german daily newspapers BT - ein Vergleich zwischen einer konservativen und einer linksliberalen Zeitung BT - a comparison between a conservative and a left-wing paper N2 - Der deutsche Zeitungsmarkt ist von einem breiten Angebot überregionaler Tageszeitungen gekennzeichnet, denen innerhalb der Bevölkerung unterschiedliche politische Ausrichtungen zugeschrieben werden. Als konservatives Blatt gilt die „Frankfurter Allgemeine Zeitung“ (F.A.Z.), wohingegen sich die „taz.die tageszeitung“ (taz) durch eine linksalternative Orientierung auszeichnet. Ausgehend von diesem Unterschied untersucht die Arbeit die sprachliche Gestaltung der Überschriften, Unter- und Zwischenzeilen der F.A.Z. und der taz zu den Themen „Alternative für Deutschland“ (AfD), „Nationalsozialistischer Untergrund“ (NSU) und „Front National“ (FN). Die qualitativ-quantitative Korpusuntersuchung fokussiert neben lexikalischen und syntaktischen auch sprachstilistische Faktoren, die eine Stellungnahme zu der Forschungsthese, dass mit der sprachlichen Formulierung der Haupt-, Unter- und Zwischenzeilen die politische Ausrichtung und ideologische Grundhaltung der Zeitungen deutlich wird, erlauben. Die Grundlage für die Analysen bildet ein konstruktivistischer Ansatz, der auf systemtheoretischen Annahmen beruht. Dadurch kann zum einen gezeigt werden, wie sich die Ergebnisse der sprachlichen Analysen mit den unterschiedlichen zugrunde liegenden Wirklichkeitskonstruktionen der Zeitungen verbinden lassen, zum anderen wird deutlich, dass sich die Formulierung der Überschriften auch auf die individuelle Realitätskonstruktion der Rezipienten auswirkt. Die vergleichenden Auswertungen geben unterschiedlich gewichtete Hinweise auf die Einstellung der Kommunikatoren und bestätigen, dass die jeweiligen Perspektivierungen der Wirklichkeit sowie ideologischen Grundhaltungen der F.A.Z. und der taz bereits in der sprachlichen Gestaltung ihrer Titelkomplexe deutlich werden. N2 - The german newspaper market is characterized by a broad supply of nationwide daily newspapers, which have different political orientations. The „Frankfurter Allgemeine Zeitung“ (F.A.Z.) is characterized as a conservative newspaper, while the „taz.die tageszeitung“ (taz) has a left-alternative orientation. Based on this difference this master thesis takes a look at the linguistic presentation of headlines and subheadings of the F.A.Z. and the taz concerning the subjects „Alternative für Deutschland“ (AfD), „Nationalsozialistischer Untergrund“ (NSU) and „Front National“ (FN). The qualitative-quantitative corpus analysis focuses on lexical, syntactical and stylistical factors. These parameters allow an answer to the research question whether the political orientation of the F.A.Z. and the taz is visible in the wording of their headlines and subheadings. The master thesis is based on a constructivist approach which is framed by a system-theoretical perspective. This allows to show how the results of the linguistic analysis are connectable with different reality constructions of the newspapers and that the formulations of the headlines has effects on the individual reality constructions of the recipients. The comparative evaluations demonstrate the influence of the different viewpoints on reality of the F.A.Z. and the taz on the linguistic formulation of their headlines and subheadings. KW - Pressesprache KW - Überschrift KW - Konstruktivismus KW - politischer Sprachgebrauch KW - Tageszeitung KW - newspaper KW - headline KW - constructivism KW - subheading Y1 - 2016 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-101011 ER - TY - THES A1 - Roßhart, Julia T1 - Bedrohungsszenario "Gender" : gesellschaftliches Geschlechterwissen und Antifeminismus in der Medienberichterstattung zum Gender Mainstreaming T1 - "Gender" as a threat : anti-feminism and common knowledge concerning sex and gender within the media debate on gender mainstreaming N2 - Gegenstand der Analyse ist die mediale Auseinandersetzung um feministische de/konstruktivistische Theorie und Praxis, die 2006/2007 unter der Überschrift 'Gender Mainstreaming' stattfand. Dominiert wurde die Mediendebatte von einer Reihe antifeministischer Veröffentlichungen in überregionalen (Print- und Online-) Zeitungen und Magazinen; auf ihnen liegt das Hauptaugenmerk meiner Untersuchung. Im Zentrum stehen dabei die Einzelanalysen der Artikel "'Gender Mainstreaming' Politische Geschlechtsumwandlung" (FAZ; Volker Zastrow) und "Der neue Mensch" (Der Spiegel; René Pfister), die unter Hinzuziehung des Debattenkontextes (ca. 50 Artikel) untersucht werden. Die Analyse verfolgt die zentralen diskursiven Strategien, mit denen feministische de/konstruktivistische Theorie und Praxis sowie die Protagonist_innen derselben delegitimiert werden und fragt nach den impliziten wie expliziten Aussagen, den zugrundeliegenden gesellschaftlichen Wissensvorräten, Deutungsrahmen und Ausschlüssen. Theoretisch und methodisch wird eine Perspektive entwickelt, die die Mediendebatte einerseits als Kondensat gesellschaftlicher Wissensvorräte und als Spiegel gesellschaftlicher Machtverhältnisse, andererseits als Produzentin von Wissen und Macht analysierbar macht. Die Forschungsfragen und Analyseergebnisse tangieren entsprechend das gesellschaftlich vorhandene Alltags- und wissenschaftliche Wissen über Geschlecht(erverhältnisse) ebenso wie das ‚neue‘ Wissen, das in der Debatte generiert wird, indem Wissen neu kombiniert, akzentuiert, in neue Kontexte gestellt und den Rezipient_innen zugänglich gemacht wird. Mit welchen Bedeutungen wird der Begriff 'Gender' aufgeladen? Nach welchen Kriterien werden feministische Interventionen beurteilt? Welche Subjekte werden abgewertet oder ausgeschlossen (Homosexuelle, Transgender u.a.)? Welches wissenschaftliche und welches Alltagswissen liegt den (antifeministischen/ transphoben/ homophoben) Aussagen zugrunde? Inwiefern haben de/konstruktivistische Geschlechterkonzepte Eingang gefunden in die öffentliche Geschlechterdebatte? Und schließlich auch: Welche Strategien verfolgten jene medialen Artikulationen, die positiv auf feministische Theorie und Praxis und/oder Gender Mainstreaming Bezug nahmen? 'Gender Mainstreaming' fungierte im untersuchten antifeministischen Strang der Debatte als Aufhänger für einen modernisierten Antifeminismus, der sich gegen sämtliche feministische Politiken und Theorien richtete, die (in der Debatte) mit dem Begriff 'Gender' assoziiert wurden. 'Gender' wurde dabei als politisches Stigmawort mit vagem de/konstruktivistischem Gehalt etabliert. Die untersuchten Delegitimierungsstrategien betreffen den Wahrheitsgehalt feministischer Theorie, die Ziele und die Wirkungen feministischer Politik und die Frage nach den Interessen, die mit feministischen Politiken verfolgt werden. Diesen Strategien liegen (unter anderem) Vorannahmen bezüglich Geschlecht und Geschlechtsidentität, Abwertungen und Ausschlüsse bestimmter geschlechtlich oder sexuell markierter Subjekte, spezifische Deutungen feministischer Politiken und Theorien und die Dethematisierung von Machtverhältnissen zugrunde. N2 - The subject matter of his analysis is the media debate on feminist de/constructivist theory and practice conducted in 2006-07, using the peg ‚gender mainstreaming‘ to hang itself on. The debate was dominated by a number of anti-feminist publications, which my analysis mainly focuses on. The core of the research consists of the analysis of the articles „‚Gender Mainstreaming‘ Politische Geschlechtsumwandlung“ (FAZ; Volker Zastrow) and „Der neue Mensch“ (Der Spiegel; René Pfister), which are being investigated by also looking at the context of the debate. The analysis aims at the central discursive strategies which are used to delegitimise feminist de/constructivist theory and practice as well as their protagonists and enquires about the implicit and explicit statements of the articles, the basic common knowledge, criterion and exclusions. I devise a theoretical and methodical perspective, which makes the debate analyzable in a double way: On the one hand the media debate can be seen as a ‚condensate‘ of common knowledge and as a mirror of social power structures and on the other hand it functions as a producer of knowledge and power itself. Consequently the research questions allude to the existing common and/or science-based knowledge as well as to the ‚new‘ knowledge which the media debate generates by (re-)combining, (re-)accentuating and (re-)contextualising knowledge. Which denotations/connotations are assigned to the term ‚gender‘? Which criterion is being mobilized to judge feminist politics? Which subjects (homosexuals, transgendered persons et al.) are degraded or excluded? Which scientific knowledge and which common knowledge form the basis of the (anti-feminist/ transphobic/ homophobic) statements being made? Is there any evidence that de/constructivist perceptions regarding gender found access to the public gender debate? And eventually: Which are the strategies being pursued by those articles that referred to feminist theory and practices affirmatively? Within the anti-feminist thread of the debate, ‚gender mainstreaming‘ served as a peg to hang an updated antifeminism on, that was directed against all feminist politics and theories associated with the term ‚gender‘. ‚Gender‘ itself was established as a stigmatized political term including a vague de/constructivist meaning. The discursive anti-feminist strategies affect the trueness of feminist thought, the aims and impacts of feminist politics and the question about the interests pursued by feminist politics. These strategies rest upon the specific interpretations of feminist politics and theories, upon the exclusion of existing power structures from the debate, upon underlying presumptions concerning gender and gender identity and upon the degradation and exclusion of persons due to their sex, their gender or their desire. KW - Medien KW - Diskurs KW - Zweigeschlechtlichkeit KW - Feminismus KW - Antifeminimus KW - Gender Mainstreaming KW - Media KW - Discourse KW - Feminism KW - Antifeminism Y1 - 2007 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-18374 ER - TY - THES A1 - Roßmüller, Dagmar T1 - Das "Sich-Erproben" der Schüler - eine Variante des Ausschöpfens der individuellen Leistungsmöglichkeiten im Unterricht Y1 - 1992 ER - TY - THES A1 - Roßnagl, Susanne T1 - Zum Zusammenhang von Nutzung von Lerngelegenheiten, sozialer Kooperation, individuellen Determinanten und Kompetenzselbsteinschätzungen von Lehrkräften im Berufseinstieg im Allgemeinen Pflichtschulbereich in Niederösterreich T1 - Interrelations between the use of learning opportunities, social cooperation, individual determinants and self-assessments of competences from novice teachers at compulsory schools in Lower Austria BT - eine empirisch-quantitative Studie N2 - Die vorliegende Studie beschäftigt sich mit dem Berufseinstieg von Lehrpersonen und untersucht Zusammenhänge zwischen der Nutzung von Lerngelegenheiten, sozialer Kooperation, individuellen Determinanten und Kompetenzselbsteinschätzungen, die erstmalig in dieser Zusammenstellung überprüft worden sind. Die Literaturrecherche machte deutlich, dass der Berufseinstieg eine besonders wichtige Phase für die berufliche Sozialisation darstellt. Die Nutzung von Lerngelegenheiten wurde empirisch noch nicht sehr oft untersucht vor allem nicht im Zusammenhang mit individuellen Determinanten und die Kooperation meist nur unter dem Fokus der Bedeutung für die Schule. An der empirischen Untersuchung nahmen 223 berufseinsteigende Lehrkräfte aus dem Allgemeinen Pflichtschulbereich in Niederösterreich teil, die verpflichtend in den ersten beiden Dienstjahren Fortbildungen besuchen müssen. Diese Situation ist einzigartig in Österreich, da es nur in diesem Bundesland seit 2011 eine verpflichtend zu besuchende Berufseinstiegsphase gibt. Ab 2019 wird es in Österreich eine Induktionsphase für alle Lehrkräfte geben, die in den Beruf einsteigen. Mit Hilfe von Strukturgleichungsmodellen wurden die Zusammenhänge untersucht und es zeigte sich, dass es diese in allen Bereichen gibt. Am Ende konnte ein neues Theoriemodell zur Nutzung von Lerngelegenheiten abgeleitet werden, das sich in Theorien zu professionellen Kompetenzentwicklung und zu Lernen in Aus-, Fortund Weiterbildung einordnen lässt. N2 - The current study concentrates on the career entry of teachers and examines all correlations between the use of learning opportunities, social cooperation, individual determinants and self-assessments of competences, which were analysed in this compilation for the first time. The literature research clarified, that the career entry is a very important phase for the job socialisation. The use of learning opportunities has not been empirically studied very often particularly not in the context of individual determinants and cooperation has mostly been studied only focusing the relevance for school. The empirical study involved 223 novice teachers from compulsory schools in Lower Austria, who must attend an obligatory supporting system in their first two years of their teaching career. This situation is unique in Austria, as only this federal state provides an obligatory career entry programme. As of 2019 there will be an induction phase for all teachers, who start their teaching career. With the help of structural equation models the correlations were analysed and it showed, that there were correlations between all component parts. At the end it was possible to deduct a new theory model for learning opportunities, which can be part of theories concerning professional development of competences and theories about learning in basic, advanced and vocational education and training. KW - Berufseinstieg KW - career entry of novice teachers KW - Lerngelegenheiten KW - learning opportunities KW - Professionalisierung KW - soziale Kooperation KW - social cooperation Y1 - 2017 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-398950 ER - TY - THES A1 - Rubach, Charlott T1 - Kooperationsbeziehungen zwischen Eltern und Lehrkräften am Ende der Sekundarstufe I BT - Bedingungen von Kooperationsbeziehungen und Auswirkungen auf motivationale und kognitive Überzeugungen von Lernenden Y1 - 2018 ER - TY - JOUR A1 - Rubach, Charlott A1 - Lazarides, Rebecca T1 - Empirische Arbeit: Bedingungen und Auswirkungen des elterlichen Engagements im häuslichen und schulischen Umfeld BT - Analysen in der Sekundarstufe I JF - Psychologie in Erziehung und Unterricht : Zeitschrift für Forschung und Praxis N2 - Ziel der Studie ist die Untersuchung der individuellen und schulbezogenen Bedingungen der elterlichen häuslichen Unterstützung schulbezogener Lernprozesse von Schülerinnen und Schülern der Sekundarstufe I. Des Weiteren wurde untersucht, inwieweit diese Unterstützung mit der Veränderung der intrinsischen Motivation und des akademischen Selbstkonzeptes der Lernenden einhergeht. Der Beitrag zum Forschungsstand liegt neben der längsschnittlichen Untersuchung in der Analyse möglicher Moderatoren der Zusammenhänge. Für die Analysen wurden Fragebogendaten von n=157 Lernenden (MAlter=14.5) sowie deren Eltern genutzt. Als zentrales Ergebnis zeigt sich, dass Eltern ihre Kinder häuslich unterstützen, wenn Eltern ihr eigenes Schulengagement als nützlich wahrnehmen. Die Unterstützung im häuslichen Umfeld steht in positivem Zusammenhang zur Veränderung der intrinsischen Motivation. Sowohl die von Eltern wahrgenommene Kooperationsbereitschaft der Klassenlehrkraft als auch die Vielfalt des elterlichen Engagements im schulischen Umfeld moderieren den Zusammenhang zwischen häuslicher Unterstützung durch Eltern und dem akademischen Selbstkonzept. Limitationen wie die Verzerrung der Elternstichprobe sowie praktische Implikationen werden diskutiert. KW - Academic self-concept KW - intrinsic motivation KW - home-based parental involvement KW - school based parental involvement Y1 - 2019 U6 - https://doi.org/10.2378/peu2019.art08d SN - 0342-183X VL - 66 IS - 2 SP - 81 EP - 100 PB - Reinhardt CY - München ER - TY - JOUR A1 - Rubach, Charlott A1 - Lazarides, Rebecca T1 - Emotionen in Schule und Unterricht BT - Forschungsperspektiven und Ziele des Sammelbandes JF - Emotionen in Schule und Unterricht: Bedingungen und Auswirkungen von Emotionen bei Lehrkräften und Lernenden N2 - Ein wichtiges Ziel schulischer Bildung ist es, neben der kognitiven Entwicklung auch die Entwicklung nicht-kognitiver Lernmerkmale wie die Lernfreude von Schülerinnen und Schülern zu fördern (Hagenauer & Hascher, 2018; Prenzel, 2012; Schiepe-Tiska, Lüdtke, Seidel & Prenzel, 2016). Damit einher geht die Herausforderung für Lehrkräfte und Schulen, Lernprozesse so zu gestalten, dass Schülerinnen und Schüler den Prozess der Wissensaneignung als freudvoll erleben und individuell Neugier und Spaß am Lernen entwickeln können. Lern-und Leistungsemotionen von Schülerinnen und Schülern haben eine maßgebliche Bedeutung für erfolgreiche Lernprozesse – sie gelten als leistungsförderlich, begünstigen schulisches Wohlbefinden und befördern die aktive Teilnahme von Lernenden am Unterricht Y1 - 2021 SN - 978-3-8474-2427-7 SN - 978-3-8474-1565-7 U6 - https://doi.org/10.2307/j.ctv1f70kr0.3 SP - 8 EP - 16 PB - Budrich CY - Opladen ER - TY - JOUR A1 - Rubach, Charlott A1 - Lazarides, Rebecca T1 - Freude und Angst von Schülerinnen und Schülern BT - Welche Zusammenhänge existieren zur Individualisierung und Selbstbestimmung im Mathematikunterricht? JF - Emotionen in Schule und Unterricht: Bedingungen und Auswirkungen von Emotionen bei Lehrkräften und Lernenden N2 - Lern- und Leistungsemotionen sind im Schulkontext sowohl bedeutsam für die Motivation, das Wohlbefinden, die Leistungen als auch für die Anstrengungsbereitschaft sowie bildungs- und berufsrelevante Entscheidungen von Schülerinnen und Schülern (als Überblick siehe Frenzel, Goetz, & Pekrun, 2015; Hascher & Brandenberger, 2018). Studien verdeutlichen, dass schulische Leistungen von Lernenden bei hoher fachspezifischer Angst sinken (Aldrup, Klusmann, & Lüdtke, 2019; Pekrun, Lichtenfeld, Marsh, Murayama, & Goetz, 2017). Freude hat hingegen positive Auswirkungen auf das fachbezogene Interesse und Leistungen der Lernenden (Pekrun et al., 2017; Schukajlow & Rakoczy, 2016). Ausgehend von der großen Bedeutung von Emotionen für den langfristigen Bildungserfolg von Lernenden ist... Y1 - 2021 SN - 978-3-8474-2427-7 SN - 978-3-8474-1565-7 U6 - https://doi.org/10.2307/j.ctv1f70kr0.11 SP - 169 EP - 191 PB - Budrich CY - Opladen ER - TY - JOUR A1 - Rubach, Charlott A1 - Lazarides, Rebecca T1 - Freude und Angst von Schülerinnen und Schülern BT - Welche Zusammenhänge existieren zur Individualisierung und Selbstbestimmung im Mathematikunterricht? N2 - Lern- und Leistungsemotionen sind im Schulkontext sowohl bedeutsam für die Motivation, das Wohlbefinden, die Leistungen als auch für die Anstrengungsbereitschaft sowie bildungs- und berufsrelevante Entscheidungen von Schülerinnen und Schülern (als Überblick siehe Frenzel, Goetz, & Pekrun, 2015; Hascher & Brandenberger, 2018). Studien verdeutlichen, dass schulische Leistungen von Lernenden bei hoher fachspezifischer Angst sinken (Aldrup, Klusmann, & Lüdtke, 2019; Pekrun, Lichtenfeld, Marsh, Murayama, & Goetz, 2017). Freude hat hingegen positive Auswirkungen auf das fachbezogene Interesse und Leistungen der Lernenden (Pekrun et al., 2017; Schukajlow & Rakoczy, 2016). Ausgehend von der großen Bedeutung von Emotionen für den langfristigen Bildungserfolg von Lernenden ist... Y1 - 2021 U6 - https://doi.org/10.2307/j.ctv1f70kr0.11 SP - 169 EP - 191 PB - Budrich CY - Opladen ER - TY - JOUR A1 - Rubach, Charlott A1 - Lazarides, Rebecca T1 - Emotionen in Schule und Unterricht Ausblick für Forschung und Praxis BT - Ausblick für Forschung und Praxis JF - Emotionen in Schule und Unterricht: Bedingungen und Auswirkungen von Emotionen bei Lehrkräften und Lernenden Y1 - 2021 SN - 978-3-8474-2427-7 SN - 978-3-8474-1565-7 U6 - https://doi.org/10.2307/j.ctv1f70kr0.16 SP - 284 EP - 291 PB - Budrich CY - Opladen ER - TY - JOUR A1 - Rubach, Charlott A1 - Lazarides, Rebecca A1 - Lohse-Bossenz, Hendrik T1 - Engagement der Klassenlehrkräfte in der Zusammenarbeit mit Eltern und Motivation Lernender in der Sekundarstufe T1 - Class teacher's engagement in parent-teacher partnership and student's motivation in secondary schools JF - Journal for educational research online N2 - Die gelingende Zusammenarbeit von Eltern und Lehrkräften gilt als eine wichtige Voraussetzung für den schulischen Bildungserfolg Lernender und wirkt sich zudem positiv auf die Beziehung von Lehrkräften und Lernenden aus. Der vorliegende Beitrag untersucht, inwiefern das Engagement von Klassenlehrkräften in der Zusammenarbeit mit Eltern, operationalisiert über angebotene formelle und informelle Kontakte, sowie die von Lernenden wahrgenommene Lehrer-Schüler-Beziehung mit der intrinsischen Motivation Lernender in Zusammenhang stehen. Ausgewertet wurden Daten von 881 Schülerinnen und Schülern aus 39 neunten und zehnten Klassen aus 13 Schulen der Sekundarstufe (Gymnasien und Integrierte Sekundarschulen). Manifestlatente Mehrebenenmodelle zeigen signi¿ kant positive Zusammenhänge zwischen der von Lehrkräften angebotenen Vielfalt formeller Kontakte und der intrinsischen Motivation der Lernenden auf Klassenebene. Auf Individualebene zeigen sich signi¿ kante positive Zusammenhänge zwischen der von Lernenden berichteten Lehrer-Schüler-Beziehung und der intrinsischen Motivation. N2 - Parent-teacher partnerships are important prerequisites for successful school-re-lated learning processes of students and is positive related to the relationship be-tween teachers and students. This two-wave longitudinal study examines the re-lationship between parental work of class teachers, measured by their formal and informal communication practices, the teacher-student relationship, and the students’ intrinsic motivation. The analyses are based on questionnaire data from N = 881 students of 39 classrooms (9th and 10th grade) at German sec-ondary schools (two school types: Gymnasium and Integrated Secondary School). Manifest-latent multilevel analyses show a signi¿ cant and positive relationship between formal communication practices and students’ intrinsic motivation at the class level. At the individual level, student-reported teacher-student relationship is signi¿ cantly and positively related to students’ intrinsic motivation. KW - Intrinsic motivation KW - Longitudinal multilevel analysis KW - Parent-teacher partner-ship KW - Teacher-student relationship KW - Intrinsische Motivation KW - ängsschnittliche Mehrebenenanalyse KW - Vielfältige Zusammenarbeit von Eltern und Lehrkräften KW - Lehrer-Schüler-Beziehung Y1 - 2019 U6 - https://doi.org/0111-pedocs-180034 SN - 1866-6671 VL - 11 IS - 2 SP - 61 EP - 85 PB - Waxmann CY - Münster ER - TY - JOUR A1 - Rubensson, Jan-Erik A1 - Soderstrom, Johan A1 - Binggeli, Christian A1 - Grasjo, Joakim A1 - Andersson, Johan A1 - Sathe, Conny A1 - Hennies, Franz A1 - Bisogni, Valentina A1 - Huang, Yaobo A1 - Olalde, Paul A1 - Schmitt, Thorsten A1 - Strocov, Vladimir N. A1 - Föhlisch, Alexander A1 - Kennedy, Brian A1 - Pietzsch, Annette T1 - Rydberg-Resolved Resonant Inelastic Soft X-Ray Scattering: Dynamics at Core Ionization Thresholds JF - Physical review letters N2 - Resonant inelastic x-ray scattering spectra excited in the immediate vicinity of the core-level ionization thresholds of N-2 have been recorded. Final states of well-resolved symmetry-selected Rydberg series converging to valence-level ionization thresholds with vibrational excitations are observed. The results are well described by a quasi-two-step model which assumes that the excited electron is unaffected by the radiative decay. This threshold dynamics simplifies the interpretation of resonant inelastic x-ray scattering spectra considerably and facilitates characterization of low-energy excited final states in molecular systems. Y1 - 2015 U6 - https://doi.org/10.1103/PhysRevLett.114.133001 SN - 0031-9007 SN - 1079-7114 VL - 114 IS - 13 PB - American Physical Society CY - College Park ER - TY - GEN A1 - Ruberg, Tobias A1 - Rothweiler, Monika A1 - Veríssimo, João Marques A1 - Clahsen, Harald T1 - Childhood bilingualism and Specific Language Impairment BT - A study of the CP-domain in German SLI T2 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe N2 - This study addresses the question of whether and how growing up with more than one language shapes a child's language impairment. Our focus is on Specific Language Impairment (SLI) in bilingual (Turkish-German) children. We specifically investigated a range of phenomena related to the so-called CP (Complementizer Phrase) in German, the hierarchically highest layer of syntactic clause structure, which has been argued to be particularly affected in children with SLI. Spontaneous speech data were examined from bilingual children with SLI in comparison to two comparison groups: (i) typically-developing bilingual children, (ii) monolingual children with SLI. We found that despite persistent difficulty with subject-verb agreement, the two groups of children with SLI did not show any impairment of the CP-domain. We conclude that while subject-verb agreement is a suitable linguistic marker of SLI in German-speaking children, for both monolingual and bilingual ones, 'vulnerability of the CP-domain' is not. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 870 KW - developmental language impairment KW - specific language impairment KW - child second language acquisition KW - syntax KW - agreement Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-518095 SN - 1866-8364 IS - 3 ER - TY - JOUR A1 - Ruberg, Tobias A1 - Rothweiler, Monika A1 - Veríssimo, João Marques A1 - Clahsen, Harald T1 - Childhood bilingualism and Specific Language Impairment BT - A study of the CP-domain in German SLI JF - Bilingualism: Language and Cognition N2 - This study addresses the question of whether and how growing up with more than one language shapes a child's language impairment. Our focus is on Specific Language Impairment (SLI) in bilingual (Turkish-German) children. We specifically investigated a range of phenomena related to the so-called CP (Complementizer Phrase) in German, the hierarchically highest layer of syntactic clause structure, which has been argued to be particularly affected in children with SLI. Spontaneous speech data were examined from bilingual children with SLI in comparison to two comparison groups: (i) typically-developing bilingual children, (ii) monolingual children with SLI. We found that despite persistent difficulty with subject-verb agreement, the two groups of children with SLI did not show any impairment of the CP-domain. We conclude that while subject-verb agreement is a suitable linguistic marker of SLI in German-speaking children, for both monolingual and bilingual ones, 'vulnerability of the CP-domain' is not. KW - developmental language impairment KW - specific language impairment KW - child second language acquisition KW - syntax KW - agreement Y1 - 2019 U6 - https://doi.org/10.1017/S1366728919000580 SN - 1366-7289 SN - 1469-1841 VL - 23 IS - 3 SP - 668 EP - 680 PB - Cambridge Univ. Press CY - Cambridge ER - TY - THES A1 - Rubertus, Elina T1 - Coarticulatory changes across childhood T1 - Koartikulatorische Veränderungen in der Kindheit BT - implications for speech motor and phonological development BT - Implikationen für die sprechmotorische und phonologische Entwicklung N2 - The present dissertation investigates changes in lingual coarticulation across childhood in German-speaking children from three to nine years of age and adults. Coarticulation refers to the mismatch between the abstract phonological units and their seemingly commingled realization in continuous speech. Being a process at the intersection of phonology and phonetics, addressing its changes across childhood allows for insights in speech motor as well as phonological developments. Because specific predictions for changes in coarticulation across childhood can be derived from existing speech production models, investigating children’s coarticulatory patterns can help us model human speech production. While coarticulatory changes may shed light on some of the central questions of speech production development, previous studies on the topic were sparse and presented a puzzling picture of conflicting findings. One of the reasons for this lack is the difficulty in articulatory data acquisition in a young population. Within the research program this dissertation is embedded in, we accepted this challenge and successfully set up the hitherto largest corpus of articulatory data from children using ultrasound tongue imaging. In contrast to earlier studies, a high number of participants in tight age cohorts across a wide age range and a thoroughly controlled set of pseudowords allowed for statistically powerful investigations of a process known as variable and complicated to track. The specific focus of my studies is on lingual vocalic coarticulation as measured in the horizontal position of the highest point of the tongue dorsum. Based on three studies on a) anticipatory coarticulation towards the left, b) carryover coarticulation towards the right side of the utterance, and c) anticipatory coarticulatory extent in repeated versus read aloud speech, I deduct the following main theses: 1. Maturing speech motor control is responsible for some developmental changes in coarticulation. 2. Coarticulation can be modeled as the coproduction of articulatory gestures. 3. The developmental change in coarticulation results from a decrease of vocalic activation width. N2 - Die vorliegende Dissertation untersucht Veränderungen der lingualen Koartikulation in der Kindheit bei deutschsprachigen Kindern im Alter von drei bis neun Jahren und Erwachsenen. Koartikulation bezieht sich auf die Diskrepanz zwischen abstrakten phonologischen Einheiten auf der einen und ihrer scheinbar vermischten kontinuierlichen Realisierung auf der anderen Seite. Da es sich um einen Prozess an der Schnittstelle zwischen Phonologie und Phonetik handelt, ermöglicht die Untersuchung koartikulatorischer Veränderungen im Laufe der Kindheit Einblicke sowohl in sprechmotorische als auch in phonologische Entwicklungen. Da sich aus bestehenden Sprachproduktionsmodellen spezifische Vorhersagen für Veränderungen der Koartikulation im Kindesalter ableiten lassen, kann die Untersuchung der kindlichen Koartikulation bei der Modellierung der menschlichen Sprachproduktion helfen. Obwohl koartikulatorische Veränderungen Licht auf einige der zentralen Fragen der Sprachentwicklung werfen können, waren frühere Studien zu diesem Thema spärlich und boten ein rätselhaftes Bild widersprüchlicher Ergebnisse. Einer der Gründe für diesen Mangel ist die Schwierigkeit der artikulatorischen Datenerfassung in einer jungen Population. Im Rahmen des Forschungsprogramms, in das diese Dissertation eingebettet ist, haben wir die Herausforderung angenommen und mit Hilfe von Ultraschallaufnahmen der Zungenbewegung beim Sprechen erfolgreich den bisher größten Korpus artikulatorischer Daten von Kindern erstellt. Im Gegensatz zu früheren Studien ermöglichte eine hohe Anzahl von Teilnehmenden in engen Alterskohorten über einen weiten Altersbereich und ein sorgfältig kontrollierter Satz von Pseudowörtern statistisch aussagekräftige Untersuchungen eines Prozesses, der als variabel und kompliziert zu erfassen gilt. Der besondere Schwerpunkt meiner Studien liegt auf der lingualen vokalischen Koartikulation, gemessen an der horizontalen Position des höchsten Punktes des Zungenrückens. Ausgehend von drei Studien zur a) antizipatorischen Koartikulation nach links, b) perseveratorischen Koartikulation nach rechts und c) antizipatorischen Koartikulation bei wiederholter gegenüber laut vorgelesener Sprache leite ich die folgenden Hauptthesen ab: 1. Die heranreifende Sprachmotorik ist für einige entwicklungsbedingte Veränderungen der Koartikulation verantwortlich. 2. Koartikulation kann als Koproduktion von artikulatorischen Gesten modelliert werden. 3. Die entwicklungsbedingte Veränderung der Koartikulation resultiert aus einer Abnahme der vokalischen Aktivierungsbreite. KW - language acquisition KW - coarticulation KW - ultrasound tongue imaging KW - phonology KW - phonetics KW - Spracherwerb KW - Koartikulation KW - Ultraschall KW - Phonologie KW - Phonetik Y1 - 2024 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-630123 ER - TY - GEN A1 - Rubertus, Elina A1 - Noiray, Aude T1 - On the development of gestural organization BT - A cross-sectional study of vowel-to-vowel anticipatory coarticulation T2 - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe N2 - In the first years of life, children differ greatly from adults in the temporal organization of their speech gestures in fluent language production. However, dissent remains as to the maturational direction of such organization. The present study sheds new light on this process by tracking the development of anticipatory vowel-to-vowel coarticulation in a cross-sectional investigation of 62 German children (from 3.5 to 7 years of age) and 13 adults. It focuses on gestures of the tongue, a complex organ whose spatiotemporal control is indispensable for speech production. The goal of the study was threefold: 1) investigate whether children as well as adults initiate the articulation for a target vowel in advance of its acoustic onset, 2) test if the identity of the intervocalic consonant matters and finally, 3) describe age-related developments of these lingual coarticulatory patterns. To achieve this goal, ultrasound tongue imaging was used to record lingual movements and quantify changes in coarticulation degree as a function of consonantal context and age. Results from linear mixed effects models indicate that like adults, children initiate vowels' lingual gestures well ahead of their acoustic onset. Second, while the identity of the intervocalic consonant affects the degree of vocalic anticipation in adults, it does not in children at any age. Finally, the degree of vowelto-vowel coarticulation is significantly higher in all cohorts of children than in adults. However, among children, a developmental decrease of vocalic coarticulation is only found for sequences including the alveolar stop /d/ which requires finer spatiotemporal coordination of the tongue's subparts compared to labial and velar stops. Altogether, results suggest greater gestural overlap in child than in adult speech and support the view of a non-uniform and protracted maturation of lingual coarticulation calling for thorough considerations of the articulatory intricacies from which subtle developmental differences may originate. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 478 KW - Catalan VCV Sequences KW - Speech Motor Control KW - Vocal-Tract KW - Acoustic Analysis KW - Locus Equations KW - Lingual Coarticulation KW - Children KW - Ultrasound KW - English KW - Resistance Y1 - 2018 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-419753 IS - 478 ER - TY - JOUR A1 - Rubertus, Elina A1 - Noiray, Aude T1 - On the development of gestural organization BT - A cross-sectional study of vowel-to-vowel anticipatory coarticulation JF - PLoS ONE N2 - In the first years of life, children differ greatly from adults in the temporal organization of their speech gestures in fluent language production. However, dissent remains as to the maturational direction of such organization. The present study sheds new light on this process by tracking the development of anticipatory vowel-to-vowel coarticulation in a cross-sectional investigation of 62 German children (from 3.5 to 7 years of age) and 13 adults. It focuses on gestures of the tongue, a complex organ whose spatiotemporal control is indispensable for speech production. The goal of the study was threefold: 1) investigate whether children as well as adults initiate the articulation for a target vowel in advance of its acoustic onset, 2) test if the identity of the intervocalic consonant matters and finally, 3) describe age-related developments of these lingual coarticulatory patterns. To achieve this goal, ultrasound tongue imaging was used to record lingual movements and quantify changes in coarticulation degree as a function of consonantal context and age. Results from linear mixed effects models indicate that like adults, children initiate vowels' lingual gestures well ahead of their acoustic onset. Second, while the identity of the intervocalic consonant affects the degree of vocalic anticipation in adults, it does not in children at any age. Finally, the degree of vowelto-vowel coarticulation is significantly higher in all cohorts of children than in adults. However, among children, a developmental decrease of vocalic coarticulation is only found for sequences including the alveolar stop /d/ which requires finer spatiotemporal coordination of the tongue's subparts compared to labial and velar stops. Altogether, results suggest greater gestural overlap in child than in adult speech and support the view of a non-uniform and protracted maturation of lingual coarticulation calling for thorough considerations of the articulatory intricacies from which subtle developmental differences may originate. KW - Catalan VCV Sequences KW - Speech Motor Control KW - Vocal-Tract KW - Acoustic Analysis KW - Locus Equations KW - Lingual Coarticulation KW - Children KW - Ultrasound KW - English KW - Resistance Y1 - 2018 U6 - https://doi.org/10.1371/journal.pone.0203562 SN - 1932-6203 VL - 13 IS - 9 SP - 1 EP - 21 PB - Public Library of Science CY - San Francisco ER - TY - JOUR A1 - Rubertus, Elina A1 - Noiray, Aude T1 - Vocalic activation width decreases across childhood BT - Evidence from carryover coarticulation JF - Laboratory Phonology N2 - This study is the first to use kinematic data to assess lingual carryover coarticulation in children. We investigated whether the developmental decrease previously attested in anticipatory coarticulation, as well as the relation between coarticulatory degree and the consonantal context, also characterize carryover coarticulation. Sixty-two children and 13 adults, all native speakers of German, were recruited according to five age cohorts: three-year-olds, four-year-olds, five-year-olds, seven-year-olds, and adults. Tongue movements during the production of ə.CV.Cə utterances (C = /b, d, g/, V = /i, y, e, a, o, u/) were recorded with ultrasound. We measured vowel-induced horizontal displacement of the tongue dorsum within the last syllable and compared the resulting coarticulatory patterns between age cohorts and consonantal contexts. Results indicate that the degree of vocalic carryover coarticulation decreases with age. Vocalic prominence within an utterance as well as its change across childhood depended on the postvocalic consonant’s articulatory demands for the tongue dorsum (i.e., its coarticulatory resistance): Low resistant /b/ and /g/ allowed for more vocalic perseveration and a continuous decrease, while the highly resistant /d/ displayed lower coarticulation degrees and discontinuous effects. These findings parallel those in anticipation suggesting a similar organization of anticipatory and carryover coarticulation. Implications for theories of speech production are discussed. KW - language acquisition KW - coarticulation KW - carryover effects KW - vowels KW - gestural organization KW - speech motor control Y1 - 2020 U6 - https://doi.org/10.5334/labphon.228 SN - 1868-6346 SN - 1868-6354 VL - 11 IS - 1 PB - de Gruyter Mouton CY - Berlin, New York ER - TY - GEN A1 - Rubertus, Elina A1 - Noiray, Aude T1 - Vocalic activation width decreases across childhood BT - Evidence from carryover coarticulation T2 - Postprints der Universität Potsdam : Humanwissenschaftliche Reihe N2 - This study is the first to use kinematic data to assess lingual carryover coarticulation in children. We investigated whether the developmental decrease previously attested in anticipatory coarticulation, as well as the relation between coarticulatory degree and the consonantal context, also characterize carryover coarticulation. Sixty-two children and 13 adults, all native speakers of German, were recruited according to five age cohorts: three-year-olds, four-year-olds, five-year-olds, seven-year-olds, and adults. Tongue movements during the production of ə.CV.Cə utterances (C = /b, d, g/, V = /i, y, e, a, o, u/) were recorded with ultrasound. We measured vowel-induced horizontal displacement of the tongue dorsum within the last syllable and compared the resulting coarticulatory patterns between age cohorts and consonantal contexts. Results indicate that the degree of vocalic carryover coarticulation decreases with age. Vocalic prominence within an utterance as well as its change across childhood depended on the postvocalic consonant’s articulatory demands for the tongue dorsum (i.e., its coarticulatory resistance): Low resistant /b/ and /g/ allowed for more vocalic perseveration and a continuous decrease, while the highly resistant /d/ displayed lower coarticulation degrees and discontinuous effects. These findings parallel those in anticipation suggesting a similar organization of anticipatory and carryover coarticulation. Implications for theories of speech production are discussed. T3 - Zweitveröffentlichungen der Universität Potsdam : Humanwissenschaftliche Reihe - 645 KW - language acquisition KW - coarticulation KW - carryover effects KW - vowels KW - gestural organization KW - speech motor control Y1 - 2020 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-473536 SN - 1866-8364 IS - 645 ER - TY - JOUR A1 - Rubey, Michael A1 - Brune, Sascha A1 - Heine, Christian A1 - Davies, D. Rhodri A1 - Williams, Simon E. A1 - Müller, R. Dietmar T1 - role of subducted slabs JF - Solid earth Y1 - 2017 U6 - https://doi.org/10.5194/se-8-899-2017 SN - 1869-9510 SN - 1869-9529 VL - 8 SP - 899 EP - 919 PB - Copernicus CY - Göttingen ER - TY - GEN A1 - Rubey, Michael A1 - Brune, Sascha A1 - Heine, Christian A1 - Davies, D. Rhodri A1 - Williams, Simon E. A1 - Müller, R. Dietmar T1 - Global patterns in Earth’s dynamic topography since the Jurassic BT - the role of subducted slabs T2 - Postprints der Universität Potsdam : Mathematisch Naturwissenschaftliche Reihe N2 - We evaluate the spatial and temporal evolution of Earth's long-wavelength surface dynamic topography since the Jurassic using a series of high-resolution global mantle convection models. These models are Earth-like in terms of convective vigour, thermal structure, surface heat-flux and the geographic distribution of heterogeneity. The models generate a degree-2-dominated spectrum of dynamic topography with negative amplitudes above subducted slabs (i.e. circum-Pacific regions and southern Eurasia) and positive amplitudes elsewhere (i.e. Africa, north-western Eurasia and the central Pacific). Model predictions are compared with published observations and subsidence patterns from well data, both globally and for the Australian and southern African regions. We find that our models reproduce the long-wavelength component of these observations, although observed smaller-scale variations are not reproduced. We subsequently define "geodynamic rules" for how different surface tectonic settings are affected by mantle processes: (i) locations in the vicinity of a subduction zone show large negative dynamic topography amplitudes; (ii) regions far away from convergent margins feature long-term positive dynamic topography; and (iii) rapid variations in dynamic support occur along the margins of overriding plates (e.g. the western US) and at points located on a plate that rapidly approaches a subduction zone (e.g. India and the Arabia Peninsula). Our models provide a predictive quantitative framework linking mantle convection with plate tectonics and sedimentary basin evolution, thus improving our understanding of how subduction and mantle convection affect the spatio-temporal evolution of basin architecture. T3 - Zweitveröffentlichungen der Universität Potsdam : Mathematisch-Naturwissenschaftliche Reihe - 623 KW - spherical mantle convection KW - southern African plateau KW - vertical motion KW - sea-level KW - seismic tomography KW - models KW - surface KW - gravity KW - lithosphere KW - Australia Y1 - 2019 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-418241 SN - 1866-8372 IS - 623 SP - 899 EP - 919 ER - TY - THES A1 - Rubin, Grit T1 - Funktionelle Charakterisierung von drei Nitrat induzierten LBD-Genen als Repressoren der Anthocyanbiosynthese in Arabidopsis thaliana Y1 - 2009 CY - Potsdam ER - TY - JOUR A1 - Rubin, Joel E. T1 - Max Peter Baumann/Tim Becker/Raphael Woebs (Hg.): Musik und Kultur im jüdischen Leben der Gegenwart / [rezensiert von] Joel E. Rubin JF - PaRDeS : Zeitschrift der Vereinigung für Jüdische Studien e.V. N2 - rezensiertes Werk: Musik und Kultur im jüdischen Leben der Gegenwart / Herausgegeben von Baumann, Max P ; Becker, Tim ; Woebs, Raphael. - Berlin : Frank & Timme, 2006. - 281 S. (Kulturwissenschaften 2) ISBN 978-3-86596-024-5 Y1 - 2008 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-38555 SN - 1614-6492 SN - 1862-7684 IS - 14 SP - 226 EP - 231 ER - TY - JOUR A1 - Rubio, Gabriel A1 - Toalá, Jesús Alberto A1 - Todt, Helge Tobias A1 - Sabin, Laurence A1 - Santamaría, Edgar A1 - Ramos-Larios, Gerardo A1 - Martín Guerrero, José David T1 - Planetary nebulae with Wolf-Rayet-type central stars - IV. NGC 1501 and its mixing layer JF - Monthly notices of the Royal Astronomical Society N2 - Theory predicts that the temperature of the X-ray-emitting gas (similar to 10(6) K) detected from planetary nebulae (PNe) is a consequence of mixing or thermal conduction when in contact with the ionized outer rim (similar to 10(4) K). Gas at intermediate temperatures (similar to 10(5) K) can be used to study the physics of the production of X-ray-emitting gas, via C iv, N v, and O vi ions. Here, we model the stellar atmosphere of the CSPN of NGC 1501 to demonstrate that even this hot H-deficient [WO4]-type star cannot produce these emission lines by photoionization. We use the detection of the C iv lines to assess the physical properties of the mixing region in this PNe in comparison with its X-ray-emitting gas, rendering NGC 1501 only the second PNe with such characterization. We extend our predictions to the hottest [WO1] and cooler [WC5] spectral types and demonstrate that most energetic photons are absorbed in the dense winds of [WR] CSPN and highly ionized species can be used to study the physics behind the production of hot bubbles in PNe. We found that the UV observations of NGC 2452, NGC 6751, and NGC 6905 are consistent with the presence mixing layers and hot bubbles, providing excellent candidates for future X-ray observations. KW - stars: evolution KW - stars: individual: WD0402+607 KW - stars: winds KW - outflows; KW - stars: Wolf-Rayet KW - planetary nebulae: general KW - planetary nebulae KW - individual: NGC1501 Y1 - 2022 U6 - https://doi.org/10.1093/mnras/stac3011 SN - 0035-8711 SN - 1365-2966 VL - 517 IS - 4 SP - 5166 EP - 5179 PB - Oxford Univ. Press CY - Oxford ER - TY - JOUR A1 - Rubio, Jesús A1 - Anders, Janet A1 - Correa, Luis A. T1 - Global quantum thermometry JF - Physical review letters / publ. by the American Physical Society N2 - A paradigm shift in quantum thermometry is proposed. To date, thermometry has relied on local estimation, which is useful to reduce statistical fluctuations once the temperature is very well known. In order to estimate temperatures in cases where few measurement data or no substantial prior knowledge are available, we build instead a method for global quantum thermometry. Based on scaling arguments, a mean logarithmic error is shown here to be the correct figure of merit for thermometry. Its full minimization provides an operational and optimal rule to postprocess measurements into a temperature reading, and it establishes a global precision limit. We apply these results to the simulated outcomes of measurements on a spin gas, finding that the local approach can lead to biased temperature estimates in cases where the global estimator converges to the true temperature. The global framework thus enables a reliable approach to data analysis in thermometry experiments. Y1 - 2021 U6 - https://doi.org/10.1103/PhysRevLett.127.190402 SN - 0031-9007 SN - 1079-7114 VL - 127 IS - 19 PB - American Physical Society CY - College Park ER - TY - JOUR A1 - Rubtsov, Boris T1 - The Russian Securities Market BT - 20 Years of Development JF - Protokollband 2013 N2 - 1. Introduction 2. Instruments 2.1 Stocks 2.2 Debt securities 3. Institutions 4. Conclusion Y1 - 2013 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-68720 SP - 105 EP - 118 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - THES A1 - Ruch, Joël T1 - Volcano deformation analysis in the Lazufre area (central Andes) using geodetic and geological observations T1 - Vulkan Deformationsanalyse im Bereich Lazufre (Zentral-Anden) mit geodätischen und geologischen Beobachtungen N2 - Large-scale volcanic deformation recently detected by radar interferometry (InSAR) provides new information and thus new scientific challenges for understanding volcano-tectonic activity and magmatic systems. The destabilization of such a system at depth noticeably affects the surrounding environment through magma injection, ground displacement and volcanic eruptions. To determine the spatiotemporal evolution of the Lazufre volcanic area located in the central Andes, we combined short-term ground displacement acquired by InSAR with long-term geological observations. Ground displacement was first detected using InSAR in 1997. By 2008, this displacement affected 1800 km2 of the surface, an area comparable in size to the deformation observed at caldera systems. The original displacement was followed in 2000 by a second, small-scale, neighbouring deformation located on the Lastarria volcano. We performed a detailed analysis of the volcanic structures at Lazufre and found relationships with the volcano deformations observed with InSAR. We infer that these observations are both likely to be the surface expression of a long-lived magmatic system evolving at depth. It is not yet clear whether Lazufre may trigger larger unrest or volcanic eruptions; however, the second deformation detected at Lastarria and the clear increase of the large-scale deformation rate make this an area of particular interest for closer continuous monitoring. N2 - Vulkanische Deformationen in großem Maßstab, die mittels InSAR gemessen wurden, liefern neue Informationen und dadurch einen neuen Blickwinkel auf vulkan-tektonische Aktivitäten und das Verständnis von langlebigen, magmatischen Systemen. Die Destabilisierung eines solchen Systems in der Tiefe beeinflusst dauerhaft die Oberfläche durch Versatz des Bodens, magmatische Einflüsse und vulkanische Unruhen. Mit der Kombination aus kleinräumigem Bodenversatz gemessen mittels InSAR, numerischer Modellierung und langfristigen geologischen Beobachtungen, analysieren wir die Gegend um den Vulkan Lazufre in den Zentralanden, um die raumzeitliche Entwicklung der Region zu bestimmen. Bodenversatz wurde hierbei im Jahr 1997 mittels Radar-Interferrometrie (InSAR) gemessen, was eine Fläche von 1800 km² ausmacht, vergleichbar mit der Größe der Deformation des Kraters. Im Jahr 2000 wurde zusätzlich eine kleinräumige Deformation am Nachbarvulkan Lastarria entdeckt. Wir sehen räumliche als auch zeitliche Verbindungen zwischen der Deformation des Vulkans und vulkanischen Strukturen innerhalb der betroffenen Gegend. Wir folgern daraus, dass diese Beobachtungen der Ausdruck eines langlebigen, magmatischen Systems in der Tiefe an der Oberfläche sind. Es ist noch nicht klar, ob Lazufre größere vulkanische Unruhen, wie zum Beispiel Eruptionen auslösen könnte, aber die Deformation am Vulkan Lastarria und ein Anstieg der großräumigen Deformationsrate, machen diese Region interessant für eine zukünftige, kontinuierliche Überwachung. KW - Vulkan Verformung KW - InSAR KW - zentralen Anden KW - Spannungsfeld KW - volcano deformation KW - InSAR KW - central Andes KW - stress field Y1 - 2010 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus-47361 ER - TY - JOUR A1 - Ruchi, Sangeetika A1 - Dubinkina, Svetlana A1 - Wiljes, Jana de T1 - Fast hybrid tempered ensemble transform filter formulation for Bayesian elliptical problems via Sinkhorn approximation JF - Nonlinear processes in geophysics / European Geosciences Union ; American Geophysical Union N2 - Identification of unknown parameters on the basis of partial and noisy data is a challenging task, in particular in high dimensional and non-linear settings. Gaussian approximations to the problem, such as ensemble Kalman inversion, tend to be robust and computationally cheap and often produce astonishingly accurate estimations despite the simplifying underlying assumptions. Yet there is a lot of room for improvement, specifically regarding a correct approximation of a non-Gaussian posterior distribution. The tempered ensemble transform particle filter is an adaptive Sequential Monte Carlo (SMC) method, whereby resampling is based on optimal transport mapping. Unlike ensemble Kalman inversion, it does not require any assumptions regarding the posterior distribution and hence has shown to provide promising results for non-linear non-Gaussian inverse problems. However, the improved accuracy comes with the price of much higher computational complexity, and the method is not as robust as ensemble Kalman inversion in high dimensional problems. In this work, we add an entropy-inspired regularisation factor to the underlying optimal transport problem that allows the high computational cost to be considerably reduced via Sinkhorn iterations. Further, the robustness of the method is increased via an ensemble Kalman inversion proposal step before each update of the samples, which is also referred to as a hybrid approach. The promising performance of the introduced method is numerically verified by testing it on a steady-state single-phase Darcy flow model with two different permeability configurations. The results are compared to the output of ensemble Kalman inversion, and Markov chain Monte Carlo methods results are computed as a benchmark. Y1 - 2021 U6 - https://doi.org/10.5194/npg-28-23-2021 SN - 1023-5809 SN - 1607-7946 VL - 28 IS - 1 SP - 23 EP - 41 PB - Copernicus CY - Göttingen ER - TY - GEN A1 - Rud, R. A1 - Käthner, Jana A1 - Giesser, J. A1 - Pasche, R. A1 - Giebel, Antje A1 - Selbeck, Jörn A1 - Shenderey, C. A1 - Fleury, D. A1 - Zude, Manuela A1 - Alchanatis, Victor T1 - Monitoring spatial variability in an apple orchard under different water regimes T2 - International Symposium on Sensing Plant Water Status - Methods and Applications in Horticultural Science N2 - Precision fruticulture addresses site or tree-adapted crop management. In the present study, soil and tree status, as well as fruit quality at harvest were analysed in a commercial apple (Malus × domestica 'Gala Brookfield'/Pajam1) orchard in a temperate climate. Trees were irrigated in addition to precipitation. Three irrigation levels (0, 50 and 100%) were applied. Measurements included readings of apparent electrical conductivity of soil (ECa), stem water potential, canopy temperature obtained by infrared camera, and canopy volume estimated by LiDAR and RGB colour imaging. Laboratory analyses of 6 trees per treatment were done on fruit considering the pigment contents and quality parameters. Midday stem water potential (SWP), normalized crop water stress index (CWSI) calculated from thermal data, and fruit yield and quality at harvest were analysed. Spatial patterns of the variability of tree water status were estimated by CWSI imaging supported by SWP readings. CWSI ranged from 0.1 to 0.7 indicating high variability due to irrigation and precipitation. Canopy volume data were less variable. Soil ECa appeared homogeneous in the range of 0 to 4 mS m-1. Fruit harvested in a drought stress zone showed enhanced portion of pheophytin in the chlorophyll pool. Irrigation affected soluble solids content and, hence, the quality of fruit. Overall, results highlighted that spatial variation in orchards can be found even if marginal variability of soil properties can be assumed. KW - apple KW - CWSI KW - precision agriculture KW - management zone Y1 - 2018 SN - 978-94-62611-93-1 U6 - https://doi.org/10.17660/ActaHortic.2018.1197.19 SN - 0567-7572 SN - 2406-6168 VL - 1197 SP - 139 EP - 146 PB - International Society for Horticultural Science CY - The Hague ER - TY - THES A1 - Ruda, Frank T1 - Hegels Pöbel : eine Untersuchung der "Grundlinien der Philosophie des Rechts" Y1 - 2011 SN - 978-3-86253-010-6 PB - Konstanz Univ. Press CY - Konstanz ER - TY - JOUR A1 - Rudakouskaya, Alena A1 - Stage, Diana A1 - Storey, Jessica T1 - Offences against the person BT - a comparative overview of the German, English and Belarusian criminal law JF - studere : Rechtszeitschrift der Universität Potsdam Y1 - 2017 SN - 1867-6170 VL - 2017 IS - 18 SP - 38 EP - 43 PB - studere e.V. CY - Potsdam ER - TY - JOUR A1 - Rudaya, Natalia A1 - Nazarova, Larisa B. A1 - Novenko, Elena A1 - Andreev, Andrei A1 - Kalugin, Ivan A1 - Daryin, Andrei A1 - Babich, Valery A1 - Li, Hong-Chun A1 - Shilov, Pavel T1 - Quantitative reconstructions of mid- to late holocene climate and vegetation in the north-eastern altai mountains recorded in lake teletskoye JF - Global and planetary change N2 - We report the first high-resolution (20-50 years) mid- to late Holocene pollen records from Lake Teletskoye, the largest lake in the Altai Mountains, in south-eastern West Siberia. Generally, the mid- to late Holocene (the last 4250 years) vegetation of the north-eastern Altai, as recorded in two studied sediment cores, is characterised by Siberian pine-spruce-fir forests that are similar to those of the present day. A relatively cool and dry interval with July temperatures lower than those of today occurred between 3.9 and 3.6 ka BP. The widespread distribution of open, steppe-like communities with Artemisia, Chenopodiaceae and Cyperaceae reflects maximum deforestation during this interval. After ca. 3.5 ka BP, the coniferous mountain taiga spread significantly, with maximum woody coverage and taiga biome scores between ca. 2.7 and 1.6 ka BP. This coincides well with the highest July temperature (approximately 1 degrees C higher than today) intervals. A short period of cooling about 13-1.4 ka BP could have been triggered by the increased volcanic activity recorded across the Northern Hemisphere. A new period of cooling started around 1100-1150 CE, with the minimum July temperatures occurring between 1450 and 1800 CE. (C) 2016 Elsevier B.V. All rights reserved. KW - Mid-late Holocene KW - Siberia KW - Altai KW - Pollen KW - Climate KW - Vegetation KW - Transfer function KW - Woody coverage Y1 - 2016 U6 - https://doi.org/10.1016/j.gloplacha.2016.04.002 SN - 0921-8181 SN - 1872-6364 VL - 141 SP - 12 EP - 24 PB - Elsevier CY - Amsterdam ER - TY - JOUR A1 - Rudershausen, S. A1 - Drexler, Hans-Joachim A1 - Banße, Wolfgang A1 - Kelling, Alexandra A1 - Schilde, Uwe A1 - Holdt, Hans-Joachim T1 - Three polymorphs of bis(5-methylthio-1,2-dithiole-3-thione)-disulfide N2 - The title compound, bis(5-methylthio-1,2-dithiole-3-thione)-disulfide, was yielded for the first time as by- product of the reaction of nickel(II) and cobalt(II) ions with 5-methylthio-1,2-dithiole-3-thione-4-thiolate. The compound can be obtained directly by oxidation of the ammonium salt of the ligand. C8H6S10 forms three polymorphs: (I), which crystallizes in the orthorhombic space group P212121, (II) and (III), which crystallize in the monoclinic space groups P21/c and P21/n, respectively. The crystal and molecular structures are presented here. The determination of the absolute configuration of (I) indicated the P-helical enantiomer. In contrast to this, the crystals of (II) und (III) are racemic, containing P- and M-helical enantiomers. The polymorphs differ in the kind of skewing around the disulfide bond and of the positions of the both dithiole rings to the S-S-moiety Y1 - 2007 UR - http://onlinelibrary.wiley.com/doi/10.1002/crat.200610776/pdf U6 - https://doi.org/10.1002/crat.200610776 ER - TY - CHAP A1 - Rudian, Sylvio Leo A1 - Haase, Jennifer A1 - Pinkwart, Niels T1 - Predicting creativity in online courses T2 - 2022 International Conference on Advanced Learning Technologies (ICALT) N2 - Many prediction tasks can be done based on users’ trace data. This paper explores divergent and convergent thinking as person-related attributes and predicts them based on features gathered in an online course. We use the logfile data of a short Moodle course, combined with an image test (IMT), the Alternate Uses Task (AUT), the Remote Associates Test (RAT), and creative self-efficacy (CSE). Our results show that originality and elaboration metrics can be predicted with an accuracy of ~.7 in cross-validation, whereby predicting fluency and RAT scores perform worst. CSE items can be predicted with an accuracy of ~.45. The best performing model is a Random Forest Tree, where the features were reduced using a Linear Discriminant Analysis in advance. The promising results can help to adjust online courses to the learners’ needs based on their creative performances. KW - prediction KW - online course KW - trace data KW - creativity Y1 - 2022 SN - 978-1-6654-9519-6 SN - 978-1-6654-9520-2 U6 - https://doi.org/10.1109/ICALT55010.2022.00056 SP - 164 EP - 168 PB - IEEE CY - Piscataway, NJ ER - TY - THES A1 - Rudloff, Jan T1 - Doppelthydrophile Blockcopolymere : Synthese und Einsatz in der biomimetischen Morphosynthese von CaCO3 Y1 - 2001 ER -