TY - JOUR A1 - Prol, Fabricio S. A1 - Smirnov, Artem G. A1 - Hoque, M. Mainul A1 - Shprits, Yuri T1 - Combined model of topside ionosphere and plasmasphere derived from radio-occultation and Van Allen Probes data JF - Scientific reports N2 - In the last years, electron density profile functions characterized by a linear dependence on the scale height showed good results when approximating the topside ionosphere. The performance above 800 km, however, is not yet well investigated. This study investigates the capability of the semi-Epstein functions to represent electron density profiles from the peak height up to 20,000 km. Electron density observations recorded by the Van Allen Probes were used to resolve the scale height dependence in the plasmasphere. It was found that the linear dependence of the scale height in the topside ionosphere cannot be directly used to extrapolate profiles above 800 km. We find that the dependence of scale heights on altitude is quadratic in the plasmasphere. A statistical model of the scale heights is therefore proposed. After combining the topside ionosphere and plasmasphere by a unified model, we have obtained good estimations not only in the profile shapes, but also in the Total Electron Content magnitude and distributions when compared to actual measurements from 2013, 2014, 2016 and 2017. Our investigation shows that Van Allen Probes can be merged to radio-occultation data to properly represent the upper ionosphere and plasmasphere by means of a semi-Epstein function. Y1 - 2022 U6 - https://doi.org/10.1038/s41598-022-13302-1 SN - 2045-2322 VL - 12 IS - 1 PB - Macmillan Publishers Limited, part of Springer Nature CY - London ER - TY - JOUR A1 - Haas, Bernhard A1 - Shprits, Yuri A1 - Allison, Hayley A1 - Wutzig, Michael A1 - Wang, Dedong T1 - Which parameter controls ring current electron dynamics JF - Frontiers in astronomy and space sciences N2 - Predicting the electron population of Earth's ring current during geomagnetic storms still remains a challenging task. In this work, we investigate the sensitivity of 10 keV ring current electrons to different driving processes, parameterised by the Kp index, during several moderate and intense storms. Results are validated against measurements from the Van Allen Probes satellites. Perturbing the Kp index allows us to identify the most dominant processes for moderate and intense storms respectively. We find that during moderate storms (Kp < 6) the drift velocities mostly control the behaviour of low energy electrons, while loss from wave-particle interactions is the most critical parameter for quantifying the evolution of intense storms (Kp > 6). Perturbations of the Kp index used to drive the boundary conditions at GEO and set the plasmapause location only show a minimal effect on simulation results over a limited L range. It is further shown that the flux at L & SIM; 3 is more sensitive to changes in the Kp index compared to higher L shells, making it a good proxy for validating the source-loss balance of a ring current model. KW - ring current KW - magnetosphere KW - electron lifetimes KW - electrons KW - van allen probes (RBSP) KW - ring current model KW - verb Y1 - 2022 U6 - https://doi.org/10.3389/fspas.2022.911002 SN - 2296-987X VL - 9 PB - Frontiers Media CY - Lausanne ER - TY - JOUR A1 - Szangolies, Leonna A1 - Rohwäder, Marie-Sophie A1 - Jeltsch, Florian T1 - Single large AND several small habitat patches BT - a community perspective on their importance for biodiversity JF - Basic and applied ecology : Journal of the Gesellschaft für Ökologie N2 - The debate whether single large or several small (SLOSS) patches benefit biodiversity has existed for decades, but recent literature provides increasing evidence for the importance of small habitats. Possible beneficial mechanisms include reduced presence of preda-tors and competitors in small habitat areas or specific functions such as stepping stones for dispersal. Given the increasing amount of studies highlighting individual behavioral differences that may influence these functions, we hypothesize that the advantage of small versus large habitat patches not only depends on patch functionality but also on the presence of animal personalities (i.e., risk-tolerant vs. risk-averse). Using an individual-based, spatially-explicit community model, we analyzed the diversity of mammal communities in landscapes consisting of a few large habitat islands interspersed with different amounts and sizes of small habitat patches. Within these heterogeneous environments, individuals compete for resources and form home-ranges, with only risk-tolerant individuals using habitat edges. Results show that when risk-tolerant individuals exist, small patches increase species diversity. A strong peak occurs at approximately 20% habitat cover in small patches when those small habitats are only used for foraging but not for breeding and home-range core position. Additional usage as stepping stones for juvenile dispersal further increases species persistence. Over-all, our results reveal that a combination of a few large and several small habitat patches promotes biodiversity by enhancing land-scape heterogeneity. Here, heterogeneity is created by pronounced differences in habitat functionality, increasing edge density, and variability in habitat use by different behavioral types. The finding that a combination of single large AND several small (SLASS) patches is needed for effective biodiversity preservation has implications for advancing landscape conservation. Particularly in struc-turally poor agricultural areas, modern technology enables precise management with the opportunity to create small foraging habitats by excluding less profitable agricultural land from cultivation. KW - SLOSS KW - fragmentation KW - heterogeneity KW - community KW - coexistence KW - coviability KW - competition KW - home-ranges KW - inter-individual difference KW - personality Y1 - 2022 U6 - https://doi.org/10.1016/j.baae.2022.09.004 SN - 1439-1791 SN - 1618-0089 VL - 65 SP - 16 EP - 27 PB - Elsevier CY - München ER - TY - CHAP A1 - Schladebach, Marcus ED - Gräfe, Hans-Christian T1 - Satelliten-Megakonstellationen im Weltraumrecht T2 - Tagungsband zur Sommerkonferenz 2022 : Telemedicus – Recht der Informationsgesellschaft Y1 - 2022 UR - https://rainermuehlhoff.de/media/publications/telemedicus-2022-tagungsband-isbn-978-3-8005-1857-9.pdf SN - 978-3-8005-1857-9 VL - 6 SP - 68 EP - 75 PB - Fachmedien Recht und Wirtschaft, dfv Mediengruppe CY - Frankfurt am Main ER - TY - JOUR A1 - Aktas, Berfin A1 - Stede, Manfred T1 - Anaphoric distance in oral and written language BT - Experimental evidence JF - Discours : revue de linguistique, psycholinguistique et informatique N2 - We investigate the variation in oral and written language in terms of anaphoric distance (i.e., the textual distance between anaphors and their antecedents), expanding corpus-based research with experimental evidence. Contrastive corpus studies demonstrate that oral genres include longer average anaphoric distance than written genres, if the distance is measured in terms of clauses (Fox, 1987; Aktas & Stede, 2020). We designed an experiment in order to examine the contrasts in oral and written mediums, using the same genre. We aim to gain more insight about the impact of the medium, in a situation where both mediums convey a similar level of spontaneity, informality and interactivity. We designed a story continuation study, where the participants are recruited via crowdsourcing. To our knowledge, this is the first study of its kind, where anaphoric distance is manipulated systematically in a language production experiment in order to examine medium distinctions. We observed that participants use more pronouns in oral medium than in written medium if the anaphoric distance is long. This result is in line with the implications of the earlier corpus-based research. In addition, our results indicate that anaphoric distance has a larger effect in referential choice for the written medium. KW - anaphora KW - anaphoric distance KW - referential choice KW - production medium KW - oral KW - written KW - story continuation KW - crowdsourcing Y1 - 2022 U6 - https://doi.org/10.4000/discours.12383 SN - 1963-1723 IS - 31 PB - Université de Paris-Sorbonne, Maion Recherche CY - Paris ER - TY - BOOK A1 - Meinel, Christoph A1 - Willems, Christian A1 - Staubitz, Thomas A1 - Sauer, Dominic A1 - Hagedorn, Christiane T1 - openHPI T1 - openHPI BT - 10 Jahre MOOCs am Hasso-Plattner-Institut BT - 10 Years of MOOCs at the Hasso Plattner Institute N2 - Anlässlich des 10-jährigen Jubiläums von openHPI informiert dieser technische Bericht über die HPI-MOOC-Plattform einschließlich ihrer Kernfunktionen, Technologie und Architektur. In einer Einleitung wird die Plattformfamilie mit allen Partnerplattformen vorgestellt; diese belaufen sich inklusive openHPI aktuell auf neun Plattformen. In diesem Abschnitt wird außerdem gezeigt, wie openHPI als Berater und Forschungspartner in verschiedenen Projekten fungiert. Im zweiten Kapitel werden die Funktionalitäten und gängigen Kursformate der Plattform präsentiert. Die Funktionalitäten sind in Lerner- und Admin-Funktionen unterteilt. Der Bereich Lernerfunktionen bietet detaillierte Informationen zu Leistungsnachweisen, Kursen und den Lernmaterialien, aus denen sich ein Kurs zusammensetzt: Videos, Texte und Quiz. Darüber hinaus können die Lernmaterialien durch externe Übungstools angereichert werden, die über den Standard Learning Tools Interoperability (LTI) mit der HPI MOOC-Plattform kommunizieren. Das Konzept der Peer-Assessments rundet die möglichen Lernmaterialien ab. Der Abschnitt geht dann weiter auf das Diskussionsforum ein, das einen grundlegenden Unterschied von MOOCs im Vergleich zu traditionellen E-Learning-Angeboten darstellt. Zum Abschluss des Abschnitts folgen eine Beschreibung von Quiz-Recap, Lernzielen, mobilen Anwendungen, spielerischen Lernens und dem Helpdesk. Der nächste Teil dieses Kapitels beschäftigt sich mit den Admin-Funktionen. Die Funktionalitätsbeschreibung beschränkt sich Neuigkeiten und Ankündigungen, Dashboards und Statistiken, Berichtsfunktionen, Forschungsoptionen mit A/B-Tests, den Kurs-Feed und das TransPipe-Tool zur Unterstützung beim Erstellen von automatischen oder manuellen Untertiteln. Die Plattform unterstützt außerdem eine Vielzahl zusätzlicher Funktionen, doch eine detaillierte Beschreibung dieser Funktionen würde den Rahmen des Berichts sprengen. Das Kapitel geht dann auf gängige Kursformate und openHPI-Lehrveranstaltungen am HPI ein, bevor es mit einigen Best Practices für die Gestaltung und Durchführung von Kursen schließt. Zum Abschluss des technischen Berichts gibt das letzte Kapitel eine Zusammenfassung und einen Ausblick auf die Zukunft der digitalen Bildung. Ein besonderes Merkmal des openHPI-Projekts ist die bewusste Entscheidung, die komplette Anwendung von den physischen Netzwerkkomponenten bis zur Plattformentwicklung eigenständig zu betreiben. Bei der vorliegenden deutschen Variante handelt es sich um eine gekürzte Übersetzung des technischen Berichts 148, bei der kein Einblick in die Technologien und Architektur von openHPI gegeben wird. Interessierte Leser:innen können im technischen Bericht 148 (vollständige englische Version) detaillierte Informationen zum Rechenzentrum und den Geräten, der Cloud-Software und dem openHPI Cloud Service aber auch zu Infrastruktur-Anwendungskomponenten wie Entwicklungstools, Automatisierung, Deployment-Pipeline und Monitoring erhalten. Außerdem finden sich dort weitere Informationen über den Technologiestack und konkrete Implementierungsdetails der Plattform inklusive der serviceorientierten Ruby on Rails-Anwendung, die Kommunikation zwischen den Diensten, öffentliche APIs, sowie Designsystem und -komponenten. Der Abschnitt schließt mit einer Diskussion über die ursprüngliche Microservice-Architektur und die Migration zu einer monolithischen Anwendung. N2 - On the occasion of the 10th openHPI anniversary, this technical report provides information about the HPI MOOC platform, including its core features, technology, and architecture. In an introduction, the platform family with all partner platforms is presented; these now amount to nine platforms, including openHPI. This section introduces openHPI as an advisor and research partner in various projects. In the second chapter, the functionalities and common course formats of the platform are presented. The functionalities are divided into learner and admin features. The learner features section provides detailed information about performance records, courses, and the learning materials of which a course is composed: videos, texts, and quizzes. In addition, the learning materials can be enriched by adding external exercise tools that communicate with the HPI MOOC platform via the Learning Tools Interoperability (LTI) standard. Furthermore, the concept of peer assessments completed the possible learning materials. The section then proceeds with further information on the discussion forum, a fundamental concept of MOOCs compared to traditional e-learning offers. The section is concluded with a description of the quiz recap, learning objectives, mobile applications, gameful learning, and the help desk. The next part of this chapter deals with the admin features. The described functionality is restricted to describing the news and announcements, dashboards and statistics, reporting capabilities, research options with A/B testing, the course feed, and the TransPipe tool to support the process of creating automated or manual subtitles. The platform supports a large variety of additional features, but a detailed description of these features goes beyond the scope of this report. The chapter then elaborates on common course formats and openHPI teaching activities at the HPI. The chapter concludes with some best practices for course design and delivery. The third chapter provides insights into the technology and architecture behind openHPI. A special characteristic of the openHPI project is the conscious decision to operate the complete application from bare metal to platform development. Hence, the chapter starts with a section about the openHPI Cloud, including detailed information about the data center and devices, the used cloud software OpenStack and Ceph, as well as the openHPI Cloud Service provided for the HPI. Afterward, a section on the application technology stack and development tooling describes the application infrastructure components, the used automation, the deployment pipeline, and the tools used for monitoring and alerting. The chapter is concluded with detailed information about the technology stack and concrete platform implementation details. The section describes the service-oriented Ruby on Rails application, inter-service communication, and public APIs. It also provides more information on the design system and components used in the application. The section concludes with a discussion of the original microservice architecture, where we share our insights and reasoning for migrating back to a monolithic application. The last chapter provides a summary and an outlook on the future of digital education. T3 - Technische Berichte des Hasso-Plattner-Instituts für Digital Engineering an der Universität Potsdam - 150 KW - openHPI KW - MOOC KW - digitale Lernplattform KW - digitale Aufklärung KW - lebenslanges Lernen KW - openHPI KW - MOOC KW - digital learning platform KW - digital enlightenment KW - lifelong learning Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-561792 SN - 978-3-86956-546-0 SN - 1613-5652 SN - 2191-1665 IS - 150 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Tabatabaei, Iman A1 - Alseekh, Saleh A1 - Shahid, Mohammad A1 - Leniak, Ewa A1 - Wagner, Mateusz A1 - Mahmoudi, Henda A1 - Thushar, Sumitha A1 - Fernie, Alisdair A1 - Murphy, Kevin M. A1 - Schmöckel, Sandra M. A1 - Tester, Mark A1 - Müller-Röber, Bernd A1 - Skirycz, Aleksandra A1 - Balazadeh, Salma T1 - The diversity of quinoa morphological traits and seed metabolic composition JF - Scientific data N2 - Quinoa (Chenopodium quinoa Willd.) is an herbaceous annual crop of the amaranth family (Amaranthaceae). It is increasingly cultivated for its nutritious grains, which are rich in protein and essential amino acids, lipids, and minerals. Quinoa exhibits a high tolerance towards various abiotic stresses including drought and salinity, which supports its agricultural cultivation under climate change conditions. The use of quinoa grains is compromised by anti-nutritional saponins, a terpenoid class of secondary metabolites deposited in the seed coat; their removal before consumption requires extensive washing, an economically and environmentally unfavorable process; or their accumulation can be reduced through breeding. In this study, we analyzed the seed metabolomes, including amino acids, fatty acids, and saponins, from 471 quinoa cultivars, including two related species, by liquid chromatography - mass spectrometry. Additionally, we determined a large number of agronomic traits including biomass, flowering time, and seed yield. The results revealed considerable diversity between genotypes and provide a knowledge base for future breeding or genome editing of quinoa. Y1 - 2022 U6 - https://doi.org/10.1038/s41597-022-01399-y SN - 2052-4463 VL - 9 IS - 1 PB - Nature Research CY - Berlin ER - TY - JOUR A1 - Mollavali, Mohanna A1 - Börnke, Frederik T1 - Characterization of trehalose-6-phosphate synthase and trehalose-6-phosphate phosphatase genes of tomato (Solanum lycopersicum L.) and analysis of their differential expression in response to temperature JF - International journal of molecular sciences N2 - In plants, the trehalose biosynthetic pathway plays key roles in the regulation of carbon allocation and stress adaptation. Engineering of the pathway holds great promise to increase the stress resilience of crop plants. The synthesis of trehalose proceeds by a two-step pathway in which a trehalose-phosphate synthase (TPS) uses UDP-glucose and glucose-6-phosphate to produce trehalose-6 phosphate (T6P) that is subsequently dephosphorylated by trehalose-6 phosphate phosphatase (TPP). While plants usually do not accumulate high amounts of trehalose, their genome encodes large families of putative trehalose biosynthesis genes, with many members lacking obvious enzymatic activity. Thus, the function of putative trehalose biosynthetic proteins in plants is only vaguely understood. To gain a deeper insight into the role of trehalose biosynthetic proteins in crops, we assessed the enzymatic activity of the TPS/TPP family from tomato (Solanum lycopersicum L.) and investigated their expression pattern in different tissues as well as in response to temperature shifts. From the 10 TPS isoforms tested, only the 2 proteins belonging to class I showed enzymatic activity, while all 5 TPP isoforms investigated were catalytically active. Most of the TPS/TPP family members showed the highest expression in mature leaves, and promoter-reporter gene studies suggest that the two class I TPS genes have largely overlapping expression patterns within the vasculature, with only subtle differences in expression in fruits and flowers. The majority of tomato TPS/TPP genes were induced by heat stress, and individual family members also responded to cold. This suggests that trehalose biosynthetic pathway genes could play an important role during temperature stress adaptation. In summary, our study represents a further step toward the exploitation of the TPS and TPP gene families for the improvement of tomato stress resistance. KW - trehalose metabolism KW - heat stress KW - Solanum lycopersicum KW - yeast complementation Y1 - 2022 U6 - https://doi.org/10.3390/ijms231911436 SN - 1661-6596 SN - 1422-0067 VL - 23 IS - 19 PB - MDPI CY - Basel ER - TY - THES A1 - Hammann, Angelika T1 - L’initiative « Universités Européennes » T1 - Europäische Hochschulallianzen T1 - The ‚european universities‘ initiative BT - l’héritage et les apports franco-allemands dans un nouveau modèle en construction BT - deutsch-französisches Erbe und Einflüsse in einem Modell im Aufbau BT - the French-German heritage and contributions N2 - Le Président de la République française, Emmanuel Macron, a prononcé le 26 septembre 2017 dans le grand auditorium de l’Université de la Sorbonne devant un public composé d’étudiants et de responsables politiques un ambitieux discours sur l’Europe. Parmi ses « initiatives pour l’Europe » figure la création d’universités européennes. L’objectif de cette étude est de mettre en lumière l’héritage et les apports français et allemands dans ce nouveau modèle de partenariat européen en construction. Quel est le rôle joué par le niveau ministériel en France et en Allemagne dans le cadre de la mise en œuvre de l’initiative ? Quel est le degré et quelle est la nature d’intervention des Agences nationales Erasmus dans chacun des deux pays ? Quel est le positionnement de l’Université franco-allemande par rapport à ces nouvelles alliances ainsi que sa contribution ? À partir de trois exemples, à savoir les alliances ECIU, EPICUR et FORTHM, nous illustrons comment la coopération franco-allemande ainsi que les relations transfrontalières développées au sein de réseaux préexistants alimentent ces « réseaux des réseaux ». Ce mémoire puise ses principales sources de 15 entretiens semi-directifs, menés entre août 2020 et janvier 2021 auprès d’acteurs allemands, français et européens. La richesse de leur expertise nourrit la conclusion dans laquelle nous tentons de mettre en exergue la dimension franco-allemande de cette initiative. Avec un regard franco-allemand, nous proposons un résumé des actuelles forces, opportunités, faiblesses et menaces qui favorisent ou entravent le développement de cette nouvelle initiative. N2 - Der Präsident der französischen Republik, Emmanuel Macron, hielt am 26. September 2017 im großen Hörsaal der Universität Sorbonne vor einem Publikum aus Studenten und Politikern eine ambitionierte Rede zu Europa. Zu seinen "Initiativen für Europa" gehört die Schaffung von Europäischen Hochschulnetzwerken. Das Ziel dieser Masterarbeit besteht darin, das deutsch-französische Erbe sowie die Beiträge beider Länder in diesen neuen Modellen zu untersuchen :.Welche Rolle spielt die ministerielle Ebene in Frankreich und Deutschland bei der Umsetzung der Initiative? In welchem Umfang und auf welche Art und Weise beteiligen sich die nationalen Erasmus-Agenturen in beiden Ländern ? Welche Position nimmt die Deutsch-Französische Hochschule in Bezug auf diese neuen Allianzen ein und welche Unterstützung bietet sie? Anhand von drei Beispielen, den Allianzen ECIU, EPICUR und FORTHM, wird beschrieben, welche Beiträge die deutsch-französische Zusammenarbeit sowie grenzüberschreitende Kooperationen leisten. Die Hauptquellen für diese Masterarbeit stellen 15 semidirektive Experteninterviews dar, die zwischen August 2020 und Januar 2021 mit deutschen, französischen und europäischen Akteuren geführt wurden. Der Reichtum ihrer Expertise fließt in die Schlussfolgerung ein, in der wir versuchen, die deutsch-französische Dimension dieser Initiative hervorzuheben. Mit einer deutsch-französischen Perspektive versuchen wir, die Stärken, Chancen, Schwächen und Bedrohungen zusammenzufassen, die die Entwicklung dieser neuen Initiative begünstigen oder behindern. N2 - The President of the French Republic, Emmanuel Macron, gave an ambitious speech on Europe to an audience of students and politicians in the large lecture hall of the Sorbonne University on 26 September 2017. Among his "Initiatives for Europe" is the creation of European University Networks. The aim of this Master's thesis is to examine the Franco-German heritage and the contributions of both countries in these new models :.What is the role of the ministerial level in France and Germany in the implementation of the initiative? To what extent and in what way do the national Erasmus agencies in both countries participate ? What is the position of the Franco-German University in relation to these new alliances and what support does it offer? Using three examples, the ECIU, EPICUR and FORTHM alliances, the contributions of Franco-German cooperation and cross-border cooperation are described. The main sources for this Master's thesis are 15 semi-directive expert interviews conducted with German, French and European actors between August 2020 and January 2021. The wealth of their expertise feeds into the conclusion, in which we try to highlight the Franco-German dimension of this initiative. With a Franco-German perspective, we try to summarise the strengths, opportunities, weaknesses and threats that favour or hinder the development of this new initiative. T3 - MEGA-Schriftenreihe - 5 KW - initiative „universités européenne“ KW - Initiative „europäische Hochschulnetzwerke“ KW - initiative „European University Networks“ Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-541681 ER - TY - THES A1 - Diel-Gligor, Katharina T1 - Der Amicus Curiae im deutsch-französischen Vergleich BT - eine Untersuchung der Verwaltungsgerichtsbarkeit T2 - MEGA-Schriftenreihe N2 - In den vergangenen Jahren hat der im anglo-amerikanischen Rechtsraum wurzelnde Amicus Curiae, wenn auch in unterschiedlicher Ausprägung, Eingang in die Verwaltungsgerichtsbarkeiten in Deutschland und Frankreich gefunden. Dabei erweist sich die französische Verwaltungsgerichtsordnung aus rechtsvergleichender Sicht als progressiv, da das Verfahrensinstrument hier – im Gegensatz zur deutschen Rechtslage – bereits positiv-rechtlich normiert ist. Diese Fortschrittlichkeit hat sich bisher jedoch nicht merklich auf die Drittinterventionspraxis niedergeschlagen, besitzen Amicus Curiae-Stellungnahmen doch in beiden Ländern und über alle verwaltungsgerichtlichen Instanzen hinweg noch immer Seltenheitswert. Da mithin keine Generalisierungen zur dieser Rechtspraxis erlaubt sind, kann sich eine Analyse der möglichen funktionalen Rolle derartiger Amicus Curiae-Stellungnahmen nur auf theoretische Überlegungen stützen. Danach ist eine Informationsfunktion gegenüber dem Gericht in Bezug auf Tatsachen- und Rechtsfragen klar zu bejahen. Auch dürfte der Verfahrensmechanismus ein zusätzliches – wenngleich nicht demokratisches – Legitimationspotential für gerichtliche Entscheidungen besitzen: Indem dieser gesellschaftliche Teilhabe und damit gleichzeitig die Einbettung verwaltungsgerichtlicher Verfahren in den jeweiligen sozialen Kontext ermöglicht, kann er zur Steigerung der gesellschaftlichen Akzeptanz der zunehmend unter Rechtsfertigungsdruck geratenden Richtermacht beitragen. N2 - Ces dernières années, le concept de l’amicus curiae, qui puise ses racines dans le droit anglo-américain, a fait son entrée dans la juridiction administrative tant en Allemagne qu’en France, bien que sous des formes différentes. Du point de vue du droit comparé, le système judiciaire administratif français est relativement progressif à cet égard, car cet instrument procédural y est déjà codifié – contrairement à la situation juridique allemande. Toutefois, cette progressivité n'a pas eu jusqu'à présent d'effet notable sur la pratique procédurale, car l’application du concept d’amicus curiae demeure relativement rare dans l’ensemble des instances des juridictions administratives des deux pays. En conséquence, dans la mesure où une généralisation par rapport à cette pratique juridique n'est donc pas possible, la question de savoir quel est le rôle fonctionnel potentiel d’amici curiae ne peut être analysée que sur le plan théorique. Sur cette base, on peut affirmer clairement un rôle d'information vis-à-vis du tribunal par rapport aux questions de fait et de droit. En outre, ce mécanisme procédural semble avoir une capacité de légitimation supplémentaire du pouvoir judiciaire, bien qu’il ne s’agisse pas d’une légitimation démocratique : en permettant une participation sociale, et en reliant ainsi les procédures devant les juridictions administratives à leur contexte social respectif, l’amicus curiae contribue à augmenter l’adhésion sociale au pouvoir judiciaire, qui est de plus en plus contraint de s’auto-justifier vis-à-vis des justiciables. N2 - In recent years, the amicus curiae, which has its roots in Anglo-American law, has found its way into the administrative court systems in Germany and France, albeit in different forms. From a comparative law perspective, the French administrative court system proves to be progressive, since the procedural instrument of amicus curiae is already legally standardized here - in contrast to the German legal situation. However, this progressiveness has not yet had a noticeable impact on third-party intervention practice, given that amicus curiae briefs are still a rarity across all administrative court instances in both countries. Since no generalizations about this legal practice are hence permitted, an analysis of the possible functional role of such amicus curiae briefs can only be based on theoretical considerations. According to these considerations, an informational function vis-à-vis the court with respect to questions of fact and law can clearly be affirmed. The procedural mechanism of amicus curiae intervention is also likely to have an additional - albeit non-democratic - legitimizing potential for judicial decisions: By enabling social participation and thus at the same time embedding administrative court proceedings in the respective social context, it can contribute to enhanced social acceptance of the power of judges, which is under increasing pressure to justify itself. T3 - MEGA-Schriftenreihe - 6 KW - Amicus Curiae KW - Verwaltungsgerichte KW - Verwaltungsgerichtsverfahren KW - Deutschland KW - Frankreich KW - Rechtsvergleich KW - juridiction administrative KW - Allemagne KW - France KW - étude de droit comparé KW - administrative courts KW - Germany KW - France KW - comparative law Y1 - 2022 U6 - http://nbn-resolving.de/urn/resolver.pl?urn:nbn:de:kobv:517-opus4-540620 SN - 2701-391X IS - 6 PB - Universitätsverlag Potsdam CY - Potsdam ER - TY - JOUR A1 - Özsoy, Onur A1 - Iefremenko, Kateryna A1 - Schroeder, Christoph T1 - Shifting and expanding clause combining strategies in heritage Turkish varieties JF - Languages N2 - Turkish is a language described as relying predominantly on non-finite subordination in the domain of clause combining. However, there are also strategies of finite subordination, as well as means of syndetic and asyndetic paratactic clause combining, especially in the informal settings. Clause combining is and has been one of the focal points of research on heritage Turkish (h-Turkish). One point is particularly clear: In comparison with the monolingual setting, finite means of clause combining are more frequent in h-Turkish in Germany, the U.S., and the Netherlands, while non-finite means of clause combining are less frequent. Overall, our results confirm the findings of earlier studies: heritage speakers in Germany and the U.S. prefer paratactic means of clause combining using connectors, as opposed to monolingual speakers. Our results also reveal that age (adolescents vs. adults) and register (informal vs. formal) significantly modulate the use of connectors. Moreover, we find that the shift in preferences in means of clause combining triggers an expansion in the system of connectors and leads to the development of new narrative connectors, such as o zaman and derken. The system of syndetic paratactic clause combining is expanding in heritage Turkish. This expansion calls for multifaceted modeling of change in heritage languages, which integrates language-internal factors (register), dynamics of convergence with the contact languages, and extra-linguistic factors (age and language use). KW - bilingualism KW - corpus linguistics KW - heritage languages KW - heritage Turkish KW - clause combining KW - coordination KW - connectors Y1 - 2022 U6 - https://doi.org/10.3390/languages7030242 SN - 2226-471X VL - 7 IS - 3 PB - MDPI CY - Basel ER - TY - JOUR A1 - Wendering, Philipp A1 - Nikoloski, Zoran T1 - Genome-scale modeling specifies the metabolic capabilities of Rhizophagus irregularis JF - mSystems N2 - Rhizophagus irregularis is one of the most extensively studied arbuscular mycorrhizal fungi (AMF) that forms symbioses with and improves the performance of many crops. Lack of transformation protocol for R. irregularis renders it challenging to investigate molecular mechanisms that shape the physiology and interactions of this AMF with plants. Here, we used all published genomics, transcriptomics, and metabolomics resources to gain insights into the metabolic functionalities of R. irregularis by reconstructing its high-quality genome-scale metabolic network that considers enzyme constraints. Extensive validation tests with the enzyme-constrained metabolic model demonstrated that it can be used to (i) accurately predict increased growth of R. irregularis on myristate with minimal medium; (ii) integrate enzyme abundances and carbon source concentrations that yield growth predictions with high and significant Spearman correlation (rS = 0.74) to measured hyphal dry weight; and (iii) simulate growth rate increases with tighter association of this AMF with the host plant across three fungal structures. Based on the validated model and system-level analyses that integrate data from transcriptomics studies, we predicted that differences in flux distributions between intraradical mycelium and arbuscles are linked to changes in amino acid and cofactor biosynthesis. Therefore, our results demonstrated that the enzyme-constrained metabolic model can be employed to pinpoint mechanisms driving developmental and physiological responses of R. irregularis to different environmental cues. In conclusion, this model can serve as a template for other AMF and paves the way to identify metabolic engineering strategies to modulate fungal metabolic traits that directly affect plant performance. IMPORTANCE Mounting evidence points to the benefits of the symbiotic interactions between the arbuscular mycorrhiza fungus Rhizophagus irregularis and crops; however, the molecular mechanisms underlying the physiological responses of this fungus to different host plants and environments remain largely unknown. We present a manually curated, enzyme-constrained, genome-scale metabolic model of R. irregularis that can accurately predict experimentally observed phenotypes. We show that this high-quality model provides an entry point into better understanding the metabolic and physiological responses of this fungus to changing environments due to the availability of different nutrients. The model can be used to design metabolic engineering strategies to tailor R. irregularis metabolism toward improving the performance of host plants. KW - Rhizophagus irregularis KW - metabolic modeling Y1 - 2022 U6 - https://doi.org/10.1128/msystems.01216-21 SN - 2379-5077 VL - 7 IS - 1 PB - American Society for Microbiology CY - Washington, DC ER - TY - JOUR A1 - Woywode, Felix T1 - Jürgen Rathje (Hrsg.) 'Barthold Heinrich Brockes: Irdisches Vergnügen in Gott. Siebenter und Achter Theil.' [Hrsg. und kommentiert v. Jürgen Rathje. Wallstein Verlag, Göttingen 2021, 954 S.] JF - Zeitschrift für Germanistik Y1 - 2022 U6 - https://doi.org/10.3726/92172_418 SN - 0323-7982 SN - 2235-1272 VL - 32 IS - 2 SP - 430 EP - 434 PB - Lang CY - Bern ; Berlin ; Frankfurt, M. ; Wien ER - TY - JOUR A1 - Zurell, Damaris A1 - König, Christian A1 - Malchow, Anne-Kathleen A1 - Kapitza, Simon A1 - Bocedi, Greta A1 - Travis, Justin M. J. A1 - Fandos, Guillermo T1 - Spatially explicit models for decision-making in animal conservation and restoration JF - Ecography : pattern and diversity in ecology / Nordic Ecologic Society Oikos N2 - Models are useful tools for understanding and predicting ecological patterns and processes. Under ongoing climate and biodiversity change, they can greatly facilitate decision-making in conservation and restoration and help designing adequate management strategies for an uncertain future. Here, we review the use of spatially explicit models for decision support and to identify key gaps in current modelling in conservation and restoration. Of 650 reviewed publications, 217 publications had a clear management application and were included in our quantitative analyses. Overall, modelling studies were biased towards static models (79%), towards the species and population level (80%) and towards conservation (rather than restoration) applications (71%). Correlative niche models were the most widely used model type. Dynamic models as well as the gene-to-individual level and the community-to-ecosystem level were underrepresented, and explicit cost optimisation approaches were only used in 10% of the studies. We present a new model typology for selecting models for animal conservation and restoration, characterising model types according to organisational levels, biological processes of interest and desired management applications. This typology will help to more closely link models to management goals. Additionally, future efforts need to overcome important challenges related to data integration, model integration and decision-making. We conclude with five key recommendations, suggesting that wider usage of spatially explicit models for decision support can be achieved by 1) developing a toolbox with multiple, easier-to-use methods, 2) improving calibration and validation of dynamic modelling approaches and 3) developing best-practise guidelines for applying these models. Further, more robust decision-making can be achieved by 4) combining multiple modelling approaches to assess uncertainty, and 5) placing models at the core of adaptive management. These efforts must be accompanied by long-term funding for modelling and monitoring, and improved communication between research and practise to ensure optimal conservation and restoration outcomes. KW - adaptive management KW - biodiversity conservation KW - cost optimisation KW - ecosystem restoration KW - global change KW - predictive models Y1 - 2021 U6 - https://doi.org/10.1111/ecog.05787 SN - 1600-0587 IS - 4 SP - 1 EP - 16 PB - Wiley-Blackwell CY - Oxford ER - TY - JOUR A1 - Sagu Tchewonpi, Sorel A1 - Rawel, Harshadrai M. A1 - Rohn, Sascha T1 - Targeted bottom-up mass spectrometry approach for the relative quantification of post-translational modification of bovine κ-casein during milk fermentation JF - Molecules N2 - kappa-casein (kappa-CN) is one of the key components in bovine milk, playing a unique role in the structuration of casein micelles. It contains in its chemical structure up to sixteen amino acid residues (mainly serine and threonine) susceptible to modifications, including glycosylation and phosphorylation, which may further be formed during milk processing. In this study, changes in post-translational modification (PTM) of kappa-CN during bovine milk fermentation were investigated. One-to-five-day fermented milk samples were produced. A traditional bottom-up proteomics approach was used to establish a multiple-reaction monitoring (MRM) method for relative quantification of kappa-CN PTM. Endoproteinase Glu-C was found to efficiently digest the kappa-CN molecule. The developed LC-MS method was validated by performing assessments of linearity, precision, repeatability, reproducibility, limit of detection (LOD), and limit of quantification (LOQ). Among the yielded peptides, four of them containing serine and threonine residues were identified and the unmodified as well as the modified variants of each of them were relatively quantified. These peptides were (1) IPTINTIASGEPTSTTE ([140, 158]), (2) STVATLE ([162, 168]), (3) DSPE ([169, 172]), and (4) INTVQVTSTAV ([180, 190]). Distribution analysis between unmodified and modified peptides revealed that over 50% of kappa-CN was found in one of its modified forms in milk. The fermentation process further significantly altered the composition between unmodified/modified kappa-CN, with glycoslaytion being predominant compared to phosphorylation (p < 0.01). Further method development towards alpha and beta-CN fractions and their PTM behavior would be an asset to better understand the changes undergone by milk proteins and the micellar structure during fermentation. KW - bovine milk KW - fermentation KW - kappa-casein KW - post-translational modifications KW - glycosylation KW - phosphorylation KW - mass spectrometry Y1 - 2022 U6 - https://doi.org/10.3390/molecules27185834 SN - 1420-3049 VL - 27 IS - 18 PB - MDPI CY - Basel ER - TY - JOUR A1 - Grassl, Sandra A1 - Ritter, Christoph A1 - Schulz, Alexander T1 - The nature of the Ny-Alesund wind field analysed by high-resolution windlidar data JF - Remote sensing N2 - In this work we present windlidar data for the research village Ny-Alesund located on Svalbard in the European Arctic (78.923 degrees N, 11.928 degrees F) from 2013 to 2021. The data have a resolution of 50 m and 10 min with an overlapping height of about 150 m. The maximum range depends on the meteorologic situation. Up to 1000 m altitude the data availability is better than 71%. We found that the highest wind speeds occur in November and December, the lowest ones in June and July, up to 500 m altitude the wind is channelled strongly in ESE to NW direction parallel to the fjord axis and the synoptic conditions above 1000 m altitude already dominate. While the fraction of windy days (v > 10 m/s) varies significantly from month to month, there is no overall trend of the wind visible in our data set. We define gusts and jets by the requirement of wind maxima v > 2 m/s above and below a wind maximum. In total, more than 24,000 of these events were identified (corresponding to 6% of the time), of which 223 lasted for at least 100 min ("Long Jets"). All of these events are fairly equally distributed over the months relatively to the available data. Further, gusts and jets follow different distributions (in terms of altitude or depths) and occur more frequently for synoptic flow from roughly a southerly direction. Jets do not show a clear correlation between occurrence and synoptic flow. Gusts and jets are not related to cloud cover. We conclude that the atmosphere from 400 m to 1000 m above Ny-Alesund is dominated by a turbulent wind shear zone, which connects the micrometeorology in the atmospheric boundary layer (ABL) with the synoptic flow. KW - windlidar KW - wind field KW - wind channelling KW - jets KW - Ny-Alesund KW - Svalbard KW - Kongsfjord KW - wind speed KW - wind direction KW - turbulent wind shear zone Y1 - 2022 U6 - https://doi.org/10.3390/rs14153771 SN - 2072-4292 VL - 14 IS - 15 PB - MDPI CY - Basel ER - TY - JOUR A1 - Lachmair, Martin A1 - Fischer, Martin H. A1 - Gerjets, Peter T1 - Action-control mappings of interfaces in virtual reality: a study of embodied interaction JF - Frontiers in virtual reality N2 - The development of interface technologies is driven by the goal of making interaction more positive through natural action-control mappings. In Virtual Reality (VR), the entire body is potentially involved for interaction, using such mappings with a maximum of degrees of freedom. The downside is the increase in interaction complexity, which can dramatically influence interface design. A cognitive perspective on detailed aspects of interaction patterns is lacking in common interface design guidelines, although it can be helpful to make this complexity controllable and, thus, make interaction behavior predictable. In the present study, the distinction between grounding, embodiment, and situatedness (the GES framework) is applied to organize aspects of interactions and to compare them with each other. In two experiments, zooming into or out of emotional pictures through changes of arm span was examined in VR. There are qualitatively different aspects during such an interaction: i) perceptual aspects caused by zooming are fundamental for human behavior (Grounding: closer objects appear bigger) and ii) aspects of gestures correspond to the physical characteristics of the agents (Embodiment: little distance of hands signals little or, in contrast, "creating more detail"). The GES-framework sets aspects of Grounding against aspects of Embodiment, thus allowing to predict human behavior regarding these qualitatively different aspects. For the zooming procedure, the study shows that Grounding can overrule Embodiment in interaction design. Thus, we propose GES as a cognitive framework that can help to inform interaction guidelines for user interface design in VR. KW - embodied interaction KW - grounded cognition KW - virtual reality KW - action-control mapping KW - zooming KW - valence KW - user interface KW - embodiment Y1 - 2022 U6 - https://doi.org/10.3389/frvir.2022.976849 SN - 2673-4192 VL - 3 PB - Frontiers Media CY - Lausanne ER - TY - JOUR A1 - Sieber, Melanie J. A1 - Wilke, Max A1 - Appelt, Oona A1 - Oelze, Marcus A1 - Koch-Müller, Monika T1 - Melting relations of Ca-Mg carbonates and trace element signature of carbonate melts up to 9 GPa - a proxy for melting of carbonated mantle lithologies JF - European journal of mineralogy N2 - The most profound consequences of the presence of Ca-Mg carbonates (CaCO3-MgCO3) in the Earth's upper mantle may be to lower the melting temperatures of the mantle and control the melt composition. Low-degree partial melting of a carbonate-bearing mantle produces CO2-rich, silica-poor melts compositionally imposed by the melting relations of carbonates. Thus, understanding the melting relations in the CaCO3-MgCO3 system facilitates the interpretation of natural carbonate-bearing silicate systems. We report the melting relations of the CaCO3-MgCO3 system and the partition coefficient of trace elements between carbonates and carbonate melt from experiments at high pressure (6 and 9 GPa) and temperature (1300-1800 degrees C) using a rocking multi-anvil press. In the absence of water, Ca-Mg carbonates are stable along geothermal gradients typical of subducting slabs. Ca-Mg carbonates ( similar to Mg0.1-0.9Ca0.9-0.1CO3) partially melt beneath mid-ocean ridges and in plume settings. Ca-Mg carbonates melt incongruently, forming periclase crystals and carbonate melt between 4 and 9 GPa. Furthermore, we show that the rare earth element (REE) signature of Group-I kimberlites, namely strong REE fractionation and depletion of heavy REE relative to the primitive mantle, is resembled by carbonate melt in equilibrium with Ca-bearing magnesite and periclase at 6 and 9 GPa. This suggests that the dolomite-magnesite join of the CaCO3-MgCO3 system might be useful to approximate the REE signature of carbonate-rich melts parental to kimberlites. Y1 - 2022 U6 - https://doi.org/10.5194/ejm-34-411-2022 SN - 0935-1221 SN - 1617-4011 VL - 34 IS - 5 SP - 411 EP - 424 PB - Copernicus CY - Göttingen ER - TY - JOUR A1 - Jonas, Wenke A1 - Schwerbel, Kristin A1 - Zellner, Lisa A1 - Jähnert, Markus A1 - Gottmann, Pascal A1 - Schürmann, Annette T1 - Alterations of lipid profile in livers with impaired lipophagy JF - International journal of molecular sciences N2 - Non-alcoholic fatty liver disease (NAFLD) is characterized by excessive lipid accumulation in the liver. Various mechanisms such as an increased uptake in fatty acids or de novo synthesis contribute to the development of steatosis and progression to more severe stages. Furthermore, it has been shown that impaired lipophagy, the degradation of lipids by autophagic processes, contributes to NAFLD. Through an unbiased lipidome analysis of mouse livers in a genetic model of impaired lipophagy, we aimed to determine the resulting alterations in the lipidome. Observed changes overlap with those of the human disease. Overall, the entire lipid content and in particular the triacylglycerol concentration increased under conditions of impaired lipophagy. In addition, we detected a reduction in long-chain polyunsaturated fatty acids (PUFAs) and an increased ratio of n-6 PUFAs to n-3 PUFAs, which was due to the depletion of n-3 PUFAs. Although the abundance of major phospholipid classes was reduced, the ratio of phosphatidylcholines to phosphatidylethanolamines was not affected. In conclusion, this study demonstrates that impaired lipophagy contributes to the pathology of NAFLD and is associated with an altered lipid profile. However, the lipid pattern does not appear to be specific for lipophagic alterations, as it resembles mainly that described in relation to fatty liver disease. KW - non-alcoholic fatty liver disease KW - lipophagy KW - lipidomics KW - fatty acid profile KW - long-chain polyunsaturated fatty acids Y1 - 2022 U6 - https://doi.org/10.3390/ijms231911863 SN - 1422-0067 VL - 23 IS - 19 PB - MDPI CY - Basel ER - TY - JOUR A1 - Billing, Maik A1 - Thonicke, Kirsten A1 - Sakschewski, Boris A1 - von Bloh, Werner A1 - Walz, Ariane T1 - Future tree survival in European forests depends on understorey tree diversity JF - Scientific reports N2 - Climate change heavily threatens forest ecosystems worldwide and there is urgent need to understand what controls tree survival and forests stability. There is evidence that biodiversity can enhance ecosystem stability (Loreau and de Mazancourt in Ecol Lett 16:106-115, 2013; McCann in Nature 405:228-233, 2000), however it remains largely unclear whether this also holds for climate change and what aspects of biodiversity might be most important. Here we apply machine learning to outputs of a flexible-trait Dynamic Global Vegetation Model to unravel the effects of enhanced functional tree trait diversity and its sub-components on climate-change resistance of temperate forests (http://www.pik-potsdam.de/similar to billing/video/Forest_Resistance_LPJmLFIT.mp4). We find that functional tree trait diversity enhances forest resistance. We explain this with 1. stronger complementarity effects (similar to 25% importance) especially improving the survival of trees in the understorey of up to +16.8% (+/- 1.6%) and 2. environmental and competitive filtering of trees better adapted to future climate (40-87% importance). We conclude that forests containing functionally diverse trees better resist and adapt to future conditions. In this context, we especially highlight the role of functionally diverse understorey trees as they provide the fundament for better survival of young trees and filtering of resistant tree individuals in the future. Y1 - 2022 U6 - https://doi.org/10.1038/s41598-022-25319-7 SN - 2045-2322 VL - 12 IS - 1 PB - Springer Nature CY - Berlin ER -