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  • Springer Nature  (1,070,389)
  • American Physical Society  (663,490)
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  • 1
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    Animal behavior is central in shaping the realized diel light niche (2022)
    Springer Nature
    In:  EPIC3Communications Biology, Springer Nature, 5(1), pp. 562-, ISSN: 2399-3642
    Details
    Publication Date: 2024-05-10
    Description: Animal behavior in space and time is structured by the perceived day/night cycle. However, this is modified by the animals’ own movement within its habitat, creating a realized diel light niche (RDLN). To understand the RDLN, we investigated the light as experienced by zooplankton undergoing synchronized diel vertical migration (DVM) in an Arctic fjord around the spring equinox. We reveal a highly dampened light cycle with diel changes being about two orders of magnitude smaller compared to the surface or a static depth. The RDLN is further characterized by unique wavelength-specific irradiance cycles. We discuss the relevance of RDLNs for animal adaptations and interactions, as well as implications for circadian clock entrainment in the wild and laboratory.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , isiRev
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  • 2
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    A Cryptochrome adopts distinct moon- and sunlight states and functions as sun- versus moonlight interpreter in monthly oscillator entrainment (2022)
    Springer Nature
    In:  EPIC3Nature Communications, Springer Nature, 13(1), pp. 5220-, ISSN: 2041-1723
    Details
    Publication Date: 2024-05-10
    Description: The moon’s monthly cycle synchronizes reproduction in countless marine organisms. The mass-spawning bristle worm Platynereis dumerilii uses an endogenous monthly oscillator set by full moon to phase reproduction to specific days. But how do organisms recognize specific moon phases? We uncover that the light receptor L-Cryptochrome (L-Cry) discriminates between different moonlight durations, as well as between sun- and moonlight. A biochemical characterization of purified L-Cry protein, exposed to naturalistic sun- or moonlight, reveals the formation of distinct sun- and moonlight states characterized by different photoreduction- and recovery kinetics of L-Cry’s cofactor Flavin Adenine Dinucleotide. In Platynereis, L-Cry’s sun- versus moonlight states correlate with distinct subcellular localizations, indicating different signaling. In contrast, r-Opsin1, the most abundant ocular opsin, is not required for monthly oscillator entrainment. Our work reveals a photo-ecological concept for natural light interpretation involving a “valence interpreter” that provides entraining photoreceptor(s) with light source and moon phase information.
    Repository Name: EPIC Alfred Wegener Institut
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  • 3
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    Seasonal variation in UVA light drives hormonal and behavioural changes in a marine annelid via a ciliary opsin (2021)
    Springer Nature
    In:  EPIC3Nature Ecology & Evolution, Springer Nature, 5(2), pp. 204-218, ISSN: 2397-334X
    Details
    Publication Date: 2024-05-10
    Description: The right timing of animal physiology and behaviour ensures the stability of populations and ecosystems. To predict anthropogenic impacts on these timings, more insight is needed into the interplay between environment and molecular timing mechanisms. This is particularly true in marine environments. Using high-resolution, long-term daylight measurements from a habitat of the marine annelid Platynereis dumerilii, we found that temporal changes in ultraviolet A (UVA)/deep violet intensities, more than longer wavelengths, can provide annual time information, which differs from annual changes in the photoperiod. We developed experimental set-ups that resemble natural daylight illumination conditions, and automated, quantifiable behavioural tracking. Experimental reduction of UVA/deep violet light (approximately 370–430 nm) under a long photoperiod (16 h light and 8 h dark) significantly decreased locomotor activities, comparable to the decrease caused by a short photoperiod (8 h light and 16 h dark). In contrast, altering UVA/deep violet light intensities did not cause differences in locomotor levels under a short photoperiod. This modulation of locomotion by UVA/deep violet light under a long photoperiod requires c-opsin1, a UVA/deep violet sensor employing Gi signalling. C-opsin1 also regulates the levels of rate-limiting enzymes for monogenic amine synthesis and of several neurohormones, including pigment-dispersing factor, vasotocin (vasopressin/oxytocin) and neuropeptide Y. Our analyses indicate a complex inteplay between UVA/deep violet light intensities and photoperiod as indicators of annual time.
    Repository Name: EPIC Alfred Wegener Institut
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  • 4
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    CyberParks – The Interface Between People, Places and Technology (2021)
    Springer Nature
    Details
    Publication Date: 2024-05-09
    Description: This open access book is about public open spaces, about people, and about the relationship between them and the role of technology in this relationship. It is about different approaches, methods, empirical studies, and concerns about a phenomenon that is increasingly being in the centre of sciences and strategies – the penetration of digital technologies in the urban space. As the main outcome of the CyberParks Project, this book aims at fostering the understanding about the current and future interactions of the nexus people, public spaces and technology. It addresses a wide range of challenges and multidisciplinary perspectives on emerging phenomena related to the penetration of technology in people’s lifestyles - affecting therefore the whole society, and with this, the production and use of public spaces. Cyberparks coined the term cyberpark to describe the mediated public space, that emerging type of urban spaces where nature and cybertechnologies blend together to generate hybrid experiences and enhance quality of life.
    Keywords: Computer science ; User interfaces (Computer systems) ; Coding theory ; Information theory ; Special purpose computers ; Computer communication systems ; Application software ; thema EDItEUR::G Reference, Information and Interdisciplinary subjects::GP Research and information: general::GPJ Coding theory and cryptology ; thema EDItEUR::J Society and Social Sciences ; thema EDItEUR::U Computing and Information Technology::UK Computer hardware::UKN Network hardware ; thema EDItEUR::U Computing and Information Technology::UY Computer science::UYQ Artificial intelligence::UYQE Expert systems / knowledge-based systems ; thema EDItEUR::U Computing and Information Technology::UY Computer science::UYZ Human–computer interaction::UYZG User interface design and usability
    Language: English
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  • 5
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    Effectuation entwickeln (2022)
    Springer Nature | Springer Gabler
    Details
    Publication Date: 2024-05-09
    Description: In diesem Open-Access-Buch wird ein Rahmenwerk entwickelt, das simulationsbezogene Untersuchungen von Effetcuation ermöglicht und gleichzeitig die Grundlage für die Entwicklung von gründungsunterstützenden Entscheidungssystemen schafft. Es wird diskutiert, inwieweit effektuatives Lernen modelliert und algorithmisch interpretiert werden kann. Auf Basis der Vorstellung und kritischen Evaluierung aktueller Simulationsmodelle, die Effectuation abbilden, wird mit Hilfe von Methoden agentenbasierter Modellierung und des Reinforcement Learnings ein aggregiertes Modell entwickelt, das effektuatives Verhalten im Rahmen einer prototypischen Gründungssituation ermöglicht. Die Ergebnisse zeigen, dass ein entrepreneurialer Agent in der Lage ist, effektuatives Verhalten zu erlernen. Leistungsunterschiede während des Lernens ergeben sich bei Veränderung seiner Umgebung. Der Erfolg des Agenten ist abhängig von der Verbindlichkeit potentieller Partner und Kunden. Weiterhin lässt sich ein Lernerfolg feststellen, wenn der Agent das Affordable-Loss-Prinzip in Verbindung mit marktkonformem Verhalten anwendet. Mit dem entwickelten Modell können künftig, unter Einbeziehung des Entscheidungsverhaltens eines realen Entrepreneurs, weitere Untersuchungen zum effektuativen Lernverhalten durchgeführt werden.
    Keywords: Entrepreneurship ; Effectuation ; Simulation ; Reinforcement Learning ; Agentenbasierte Modellierung ; Innovation ; thema EDItEUR::K Economics, Finance, Business and Management::KJ Business and Management::KJH Entrepreneurship / Start-ups ; thema EDItEUR::K Economics, Finance, Business and Management::KJ Business and Management
    Language: German
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  • 6
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    Tools and Algorithms for the Construction and Analysis of Systems (2024)
    Springer Nature | Springer Nature Switzerland
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    Publication Date: 2024-05-09
    Description: The open access book 3-volume set LNCS 14570-14573 constitutes the proceedings of the 30th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, TACAS 2024, which was held as part of the European Joint Conferences on Theory and Practice of Software, ETAPS 2024, during April 6-11, 2024, in Luxembourg. The 53 full papers and 16 short SVComp contributions included in these proceedings were carefully reviewed and selected from 159 submissions. They were organized in topical sections as follows: Part I: STA and SMT solving; synthesis; logic and decidability; program analysis and proofs; proof checking; Part II: Model Checking; automata and learning; software verification; probabilistic systems; simulations; Part III: Neural networks; testing and verification; games; concurrency; SV-Comp 2024.
    Keywords: TACAS ; formal verification ; software systems ; hardware systems ; static analysis ; probabilistic programming ; program synthesis ; concurrency ; testing ; simulations ; verification of machine ; thema EDItEUR::U Computing and Information Technology::UY Computer science::UYA Mathematical theory of computation ; thema EDItEUR::U Computing and Information Technology::UK Computer hardware ; thema EDItEUR::U Computing and Information Technology::UK Computer hardware::UKN Network hardware ; thema EDItEUR::U Computing and Information Technology::UY Computer science::UYM Computer modelling and simulation ; thema EDItEUR::U Computing and Information Technology::UM Computer programming / software engineering::UMZ Software Engineering
    Language: English
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  • 7
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    Segregierte Quartiere – segregierte Freizeiträume (2024)
    Springer Nature | Springer Fachmedien Wiesbaden
    Details
    Publication Date: 2024-05-09
    Description: Dieses Open-Access-Buch stellt vor dem Hintergrund einer zunehmenden sozialen Segregation in deutschen Städten die Frage nach den Auswirkungen dieser sich verschärfenden räumlichen Polarisierung auf die Sozialisation von Jugendlichen. Die Arbeit geht dabei über den quartiersfixierten Ansatz der Nachbarschaftseffektforschung hinaus und untersucht, welche Räume in der Stadt von Berliner Jugendlichen in ihrer Freizeit tatsächlich genutzt werden und damit für sie sozialisationsrelevant sind. Der Fokus liegt auf dem Einfluss, den einerseits individuelle Merkmale, wie Geschlecht und sozialer Status, und andererseits die Stadtstruktur auf das räumliche Freizeitverhalten der Jugendlichen haben. Zentral ist dabei die Frage, ob sich die soziale Segregation der Wohnquartier auch in den Aktivitätsräumen der Jugendlichen widerspiegelt. Um diese Frage zu beantworten, werden Daten mit einer eigens für diese Arbeit entwickelten innovativen räumlich-quantitativen Befragung erhoben, vor dem Hintergrund der physischen und sozialräumlichen Struktur Berlins ausgewertet und durch qualitative Leitfadeninterviews ergänzt.
    Keywords: Jugendliche ; Sozialisation ; Mixed Methods ; Freizeitverhalten ; Berlin ; Segregation ; Nachbarschaftseffekte ; Aktionsräume ; soziale Segregation ; thema EDItEUR::J Society and Social Sciences::JH Sociology and anthropology::JHB Sociology
    Language: German
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  • 8
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    Euphorias in Gender, Sex and Sexuality Variations (2023)
    Springer Nature | Palgrave Macmillan
    Details
    Publication Date: 2024-05-09
    Description: This Open Access book uses the concept of ‘euphoria’ to investigate when, why and how marginal gender, sex and sexuality groups have positive experiences of their diverse variations even within repressive and disordering contexts. Drawing on data from multiple online surveys including a study of 2,407 LGBTQ+ people and a study of 272 people with intersex variations, it names and offers a new ecological framework for understanding participants’ influences on and barriers to euphorias, asserting the subversive possibilities of being euphorically queer, as opposed to euphoric and queer. The author argues that it is the particularities of negative internal, socio-cultural and institutional contexts for a marginal group or groups that contributes towards the possibilities that shape their potential euphoric feelings and experiences. Ultimately, she calls for a more expansive focus in gender and sexuality studies to show the complex effects of dysphoria and repression on the possibilities of pleasure and joy. This book will be of interest to scholars across Gender, Sexuality and Queer Studies.
    Keywords: gender diverse ; LGBTQ ; body positivity ; heteronormative ; transgender ; gender identity ; critical empowerment ; intersex ; thema EDItEUR::J Society and Social Sciences::JB Society and culture: general::JBS Social groups, communities and identities::JBSF Gender studies, gender groups ; thema EDItEUR::A The Arts::AT Performing arts::ATF Films, cinema::ATFN Film: styles and genres ; thema EDItEUR::J Society and Social Sciences::JH Sociology and anthropology::JHB Sociology
    Language: English
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  • 9
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    Conviviality at the Crossroads (2021)
    Springer Nature
    Details
    Publication Date: 2024-05-09
    Description: Conviviality has lately become a catchword not only in academia but also among political activists. This open access book discusses conviviality in relation to the adjoining concepts cosmopolitanism and creolisation. The urgency of today’s global predicament is not only an argument for the revival of all three concepts, but also a reason to bring them into dialogue. Ivan Illich envisioned a post-industrial convivial society of ‘autonomous individuals and primary groups’ (Illich 1973), which resembles present-day manifestations of ‘convivialism’. Paul Gilroy refashioned conviviality as a substitute for cosmopolitanism, denoting an ability to be ‘at ease’ in contexts of diversity (Gilroy 2004). Rather than replacing one concept with the other, the fourteen contributors to this book seek to explore the interconnections – commonalities and differences – between them, suggesting that creolisation is a necessary complement to the already-intertwined concepts of conviviality and cosmopolitanism. Although this volume takes northern Europe as its focus, the contributors take care to put each situation in historical and global contexts in the interests of moving beyond the binary thinking that prevails in terms of methodologies, analytical concepts, and political implementations.
    Keywords: Social sciences ; Ethnology ; Ethnography ; Ethnology ; Political sociology ; thema EDItEUR::J Society and Social Sciences::JH Sociology and anthropology::JHB Sociology ; thema EDItEUR::J Society and Social Sciences::JH Sociology and anthropology::JHM Anthropology::JHMC Social and cultural anthropology
    Language: English
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  • 10
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    Author Correction: Transiting consolidated ice strongly influenced polynya area during a shrink event in Terra Nova Bay in 2013 (2023)
    Springer Nature
    In:  EPIC3Communications Earth & Environment, Springer Nature, 4(1), pp. 107-107, ISSN: 2662-4435
    Details
    Publication Date: 2024-05-08
    Description: In this article the author name Matthew Mazloff was incorrectly written as Matthew Mazloeff. The original article has been corrected.
    Repository Name: EPIC Alfred Wegener Institut
    Type: Article , peerRev
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