cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Civic education and defensive republicanism in France after the assassination of Samuel Paty
Creators: name: Szukala, Andrea
Publisher: name: JSSE - Journal of Social Science Education
Year: 2023

description: Highlights: The assassination of Samuel Paty is an exceptional event that allows for multiple readings, but this presupposes that the facts and political processes surrounding the case are properly reconstructed. As presented, the study can be used as a starting point for further discussion and analysis around the question of educational governance of civic education in societies under stress. Purpose: The Samuel Paty murder has generated a great response from the professional community and the world of education and schools in Europe and worldwide. In a unique way, civic educators expressed horror, sorrow, and solidarity with the family and with their French colleagues. The article is dedicated to Samuel Paty and the question of whether and how we as a community of international civic educators can learn from this terrible event. Design/methodology/approach: The article presents a case reconstruction using press and public documents attempting to disentangle the actors’ positions, their stated intentions and contexts, and the following political intricacies of the case. Findings: The murder of Samuel Paty provoked a series of educational policy reactions that have paradoxical effects on civic education in schools, seen its intentions of political-social inclusion into a citizenship model. The case analysis documents the pitfalls of the instrumentalization of civic education for the securitization of societies.
description: JSSE - Journal of Social Science Education, Bd. 22 Nr. 1 (2023): Schools as securitised spaces
title: Neuerscheinung
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 43, Nr. 4 (2014), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Supercurrent multiplet correlators at weak and strong coupling
Creators: name: Argurio, Riccardo
name: Bertolini, Matteo
name: Di Pietro, Lorenzo
name: Porri, Flavio
name: Redigolo, Diego
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Correlators of gauge invariant operators provide useful information on the dynamics, phases and spectra of a quantum field theory. In this paper, we consider N=1 supersymmetric theories and focus our attention on the supercurrent multiplet. We give a complete characterization of two-point functions of operators belonging to such multiplet, like the energy-momentum tensor and the supercurrent, and study the relations between them. We discuss instances of weakly coupled and strongly coupled theories, in which different symmetries, like conformal invariance and supersymmetry, may be conserved and/or spontaneously or explicitly broken. For theories at strong coupling, we exploit AdS/CFT techniques. We provide a holographic description of different properties of a strongly coupled theory, including a realization of the Goldstino mode in a simple illustrative model.
description: 35 pages, 2 figures. Version 3: appendix C amended
title: Nachruf Hans Schleuning
Creators: name: Planck, Dieter
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 43, Nr. 4 (2014), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
The place and role of school sociology in Brazil and the contemporary context of the rise of the extreme right
Creators: name: Das Neves Bodart, Cristiano
name: Pires, Welkson
Publisher: name: JSSE - Journal of Social Science Education
Year: 2023

description: Purpose: This article presents the place and the role of Sociology teaching in the current Brazilian context, marked by the rise of extreme right ideologies and practices, more specifically by its ultraliberal economic bias and moral conservatism. Design/methodology/approach: Organized in three parts, it outlines, respectively, the macro political and curricular scenario, and some of its unfolding in school practices. The main effort is to reflect on the ways in which school Sociology has been - ambiguously - understood and instrumentalized in the Brazilian context. The reflections are based, besides the literature review, on the analysis of the conjuncture and political-institutional directions, on curriculum documents and on reports of teaching experiences collected during the year 2022. Findings: We verified that the extreme right advance in the public space is due to the articulation of two factors: 1) scenario of political and economic crisis; 2) structural aspects that guarantee, in the moral field, the predominance of conservatism and, in the economic field, the prevalence of ultraliberalism. With regard to education, the extreme right has had an impact in the definition of legislation that regulates the education system and on boosting surveillance and persecution in relation to teachers who distance themselves from their political ideology.
description: JSSE - Journal of Social Science Education, Bd. 22 Nr. 1 (2023): Schools as securitised spaces
Knowledge graphs in BERD and in NFDI
Creators: name: Shigapov, Renat
Publisher: name: Zenodo
Year: 2022

description: Knowledge graphs are able to capture, enrich and disseminate research data objects so that the FAIR and Linked Data principles are fulfilled. How knowledge graphs can improve the domain-specific (BERD) and cross-domain (NFDI) research data infrastructures? The answer is based on the use cases in BERD@NFDI and on activities of the NFDI working group “Knowledge graphs”. First, we describe the architecture, knowledge graphs and use cases in BERD@NFDI. Then, we present the NFDI working group “Knowledge Graphs”, its work plan and potential base services.
Out from the shadow of the dinosaurs? Dietary diversity and niche partitioning in Cretaceous and Paleocene mammals
Creators: name: Adams, Neil F.
Publisher: name: University of Leicester
Year: 2023
Subjects: Uncategorized

description: The first mammals evolved as small-bodied insectivores in the shadow of the dinosaurs during the Mesozoic, but truly large body sizes and dominance of terrestrial ecosystems were only attained by mammals in the Cenozoic after the end-Cretaceous mass extinction. Yet, the extent and trajectory of mammalian palaeoecological diversity through the Late Cretaceous before the mass extinction and in its immediate aftermath in the early Paleocene remain incompletely understood despite centuries of fossil collecting and study. Recent developments in palaeodietary reconstruction using robust, quantitative proxies provide a timely opportunity to examine these issues. This thesis uses the well-resolved record from North America to test hypotheses related to mammalian dietary palaeoecology through the Late Cretaceous and early Paleocene. Firstly, a new quantitative review of dietary interpretations for Late Cretaceous mammals is presented, which reveals support for a rejection of the traditional Mesozoic ‘suppression hypothesis’. However, the quality and consistency of interpretations are variable, highlighting the need for robust palaeodietary work in future. Secondly, a diverse set of extant herbivorous mammals is used to explore the benefits of applying and combining two dietary proxies: multi-proxy dental morphology analysis (MPDMA) and dental microwear texture analysis (DMTA). This study shows for the first time that multivariate metrics from both techniques are significantly but variably correlated and that dietary classification improves by combining both methods. Thirdly, MPDMA and DMTA are then applied to early Paleocene ‘condylarths’ (so-called ‘archaic ungulates’) from the San Juan Basin in New Mexico, providing strong support for the rapid recovery and radiation of placental mammals in the aftermath of the mass extinction. Finally, a novel multi-comparator approach to DMTA sheds new light on mammalian responses to an abrupt hyperthermal event in the early Paleocene, which has important implications for assessments of extinction risk amidst the current climate and biodiversity crises facing our planet.
title: The Limits of Transnationalism in Olga Grjasnowa's "Gott ist nicht schüchtern"
Creators: name: Happe, Rosalin
Publisher: name: University of Massachusetts Amherst
Year: 2019

description: The terms “refugees” and “refugee crisis” have been prominent in media discourse all over the world – especially since the beginning of the Syrian civil war in 2011 and large incoming numbers of refugees into Europe since 2015. Germany, whose media initially celebrated its “Willkommenskultur”, has become increasingly critical of refugees; political and civic exclusion has intensified, and emphasis has been placed on belonging based on peoples’ passports and hence nationalities, which determine whether or not someone belongs in a country. The author Olga Grjasnow, born 1984 in Baku, Azerbaijan and who is of Russian-Jewish descent, took on the task of describing the horrific circumstances in Syria in the midst of its ongoing civil war in her latest novel, entitled Gott ist nicht schüchtern (2017). Moreover, she depicts individuals’ flight across the ocean and their eventual arrival and life in Germany. In her book, Olga Grjasnowa describes the lives of three young Syrian individuals and their extremely limited possibilities of leading a free, peaceful life due to their nationality and the resulting closing of diverse borders for them.Based on the scholarly discourse on transnational fiction and how this work may or may not fit into this notion, especially with regard to globalization and powerful nations’ economic interests, this thesis seeks to analyze how nationalist and capitalist policy makings affect people in drastic ways, as they find themselves uprooted and persecuted.By excluding a Western narrative voice, Olga Grjasnowa zooms in on the lives of Syrians and their hopeless circumstances, while showing how a “wrong” passport makes life for people difficult to navigate in Syria, Germany and beyond. By means of close reading, I analyze the novel pertaining to the war in Syria and the resulting politics, media coverage and individual “fate”, which is tied to limitations for people to escape these circumstances based on documents and national borders.
title: Personalia ; Abbildungsnachweis
Creators: name: Redaktion, Die
Publisher: name: University Library Heidelberg
Year: 2014

description: Denkmalpflege in Baden-Württemberg – Nachrichtenblatt der Landesdenkmalpflege, Bd. 43, Nr. 4 (2014), Beginn und Erscheinungsfrequenz: Ausgaben pro Band: 4
Optical variability of eight FRII-type quasars with 13-yr photometric light curves
Creators: name: Kuźmicz, Agnieszka
name: Goyal, Arti
name: Zola, Stanisław
name: Jamrozy, Marek
name: Dróżdż, Marek
name: Ogłoza, Waldemar
name: Siwak, Michał
name: Reichart, Daniel E.
name: Kouprianov, Vladimir V.
name: Caton, Daniel B.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We characterize the optical variability properties of eight lobe-dominated radio quasars (QSOs): B2 0709$+$37, FBQS J095206.3$+$235245, PG 1004$+$130, [HB89] 1156$+$631, [HB89] 1425$+$267, [HB89] 1503$+$691, [HB89] 1721$+$343, 4C $+$74.26, systematically monitored for a duration of 13 years since 2009. The quasars are radio-loud objects with extended radio lobes that indicate their orientation close to the sky plane. Five of the eight QSOs are classified as giant radio quasars. All quasars showed variability during our monitoring, with magnitude variations between 0.3 and 1 mag for the least variable and the most variable QSO, respectively. We performed both structure function (SF) analysis and power spectrum density (PSD) analysis for the variability characterization and search for characteristic timescales and periodicities. As a result of our analysis, we obtained relatively steep SF slopes ($α$ ranging from 0.49 to 0.75) that are consistent with the derived PSD slopes ($\sim$2--3). All the PSDs show a good fit to single power law forms, indicating a red-noise character of variability between $\sim$13 years and weeks timescales. We did not measure reliable characteristic timescales of variability from the SF analysis which indicates that the duration of the gathered data is too short to reveal them. The absence of bends in the PSDs (change of slope from $\geq$1 to $\sim$0) on longer timescales indicates that optical variations are most likely caused by thermal instabilities in the accretion disk.
description: Accepted for publication in ApJS; 17 pages, 5 figures, 5 tables
Minimizing attosecond CEP jitter by carrier envelope phase tuning
Creators: name: Prandolini, Mark J.
name: Gaumnitz, Thomas
name: Kothe, Alexander
name: Henkel, Jost
name: Schneider, Joachim
name: Hengster, Julia
name: Drescher, Markus
name: Lein, Manfred
name: Uphues, Thorsten
Publisher: name: Les Ulis : EDP Sciences
Year: 2019
Subjects: subject: Konferenzschrift
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Minimizing the CEP jitter of isolated attosecond pulses (IAP) will be important for future applications. This jitter is experimentally and theoretically investigated and can be minimized when the driving pulse is near its Fourier limit but with slightly negative chirp. Thus, understanding and characterization of the CEP jitter of IAPs is a first step towards exact control of the electric field of IAP pulses.
Education as prevention: Intersectional feminism in security spaces
Creators: name: Elliott, Kathlyn
name: Benjamin, Saija
name: Kuusisto, Arniika
name: Koirikivi, Pia
Publisher: name: JSSE - Journal of Social Science Education
Year: 2023

description: Purpose: This article argues that the inclusion of education in prevention creates space to address long standing concerns about the racialized and gendered problems created by traditional security approaches Design/methodology/approach: The article uses intersectional feminism as it’s theoretical lens/basis. Findings: Education can be a space that allows for more women, non-binary persons, and people of color to engage as policy actors in the prevention of violent extremism. While policy documents emphasize the role education plays, and alludes to the presence of women, non-binary persons, and people of color in education, the research and application often overlooks these perspectives.
description: JSSE - Journal of Social Science Education, Bd. 22 Nr. 1 (2023): Schools as securitised spaces
Equilibration towards generalized Gibbs ensembles in non-interacting theories
Creators: name: Gluza, Marek
name: Eisert, Jens
name: Farrelly, Terry
Publisher: name: Amsterdam : SciPost Foundation
Year: 2019
Subjects: subject: quantum
subject: dynamics
subject: thermalization
subject: systems
subject: Dewey Decimal Classification::500 | Naturwissenschaften::530 | Physik

description: Even after almost a century, the foundations of quantum statistical mechanics are still not completely understood. In this work, we provide a precise account on these foundations for a class of systems of paradigmatic importance that appear frequently as mean-field models in condensed matter physics, namely non-interacting lattice models of fermions (with straightforward extension to bosons). We demonstrate that already the translation invariance of the Hamiltonian governing the dynamics and a finite correlation length of the possibly non-Gaussian initial state provide sufficient structure to make mathematically precise statements about the equilibration of the system towards a generalized Gibbs ensemble, even for highly non-translation invariant initial states far from ground states of non-interacting models. Whenever these are given, the system will equilibrate rapidly according to a power-law in time as long as there are no long-wavelength dislocations in the initial second moments that would render the system resilient to relaxation. Our proof technique is rooted in the machinery of Kusmin-Landau bounds. Subsequently, we numerically illustrate our analytical findings by discussing quench scenarios with an initial state corresponding to an Anderson insulator observing power-law equilibration. We discuss the implications of the results for the understanding of current quantum simulators, both in how one can understand the behaviour of equilibration in time, as well as concerning perspectives for realizing distinct instances of generalized Gibbs ensembles in optical lattice-based architectures.
Native and non-native bees (Anthophila) of Santa Cruz Island: An annotated checklist
Creators: name: Seltmann, Katja C.
name: Dewey, David
name: Hobson, Evan
name: McLaren, Lynn
name: Thrift, Charlie
name: Wood, Zoe
Publisher: name: Zenodo
Year: 2021
Subjects: checklist, bees, Apoidea, Santa Cruz Island, Hymenoptera

description: This checklist of Santa Cruz Island bees includes information from prior publications, a previous checklist by Robbin Thorpe, iNaturalist observations, natural history collection specimens, and recent collections by the authors. The checklist includes information about the collectors and determiners of the specimens. Many of the specimens were determined to species by John S. Ascher, Robbin Thorpe, or Jaime Pawelek. Taxonomy follows Ascher, J. S. and J. Pickering. 2020. Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila). http://www.discoverlife.org/mp/20q?guide=Apoidea_species. This is version 0.01 and part of an ongoing survey to document the bee species of Santa Cruz Island. The reports are published in versions once a year. Questions and comments about the checklist should be emailed to Katja Seltmann (seltmann@ucsb.edu). This version of the checklist was built using the UCSB Symbiota portal and https://symbiota.ccber.ucsb.edu/checklists/checklist.php?cl=33
Covariant extrinsic gravity and the geometric origin of dark energy
Creators: name: Jalalzadeh, S.
name: Rostami, T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We construct the covariant or model independent induced Einstein-Yang-Mills field equations on a 4-dimensional brane embedded isometrically in an D-dimensional bulk space, assuming the matter fields are confined to the brane. Applying this formalism to cosmology, we derive the generalized Friedmann equations. We derive the density parameter of dark energy in terms of width of the brane, normal curvature radii and the number of extra large dimensions. We show that dark energy could actually be the manifestation of the local extrinsic shape of the brane. It is shown that the predictions of this model are in good agreement with observation if we consider an 11-dimensional bulk space.
description: 29 pages, 2 figures, revised version
Taking the “terror” out of “terrorism”: The promise and potential of fear reducing education
Creators: name: Sjøen, Martin M.
Publisher: name: JSSE - Journal of Social Science Education
Year: 2023

description: Purpose: The purpose of this study is to explore how education can help students develop democratic resilience as a bulwark against terror-induced fear, securitization, and possibly even extremism itself. Approach: This article presents findings from a qualitative study exploring security governance in Norwegian secondary schools. The empirical corpus draws on 16 semi-structured interviews with educators to explore their perspectives on security governance in schools. Findings: The securitization of education risks normalizing fear culture in schools. Trust can likely be used to prevent or reduce the emergence of such fear. This study explores educational narratives by analyzing how a combination of cognitive trust and emotional trust may help students to build democratic resilience against terror-induced fear. In this context, helping students develop more sophisticated understandings of the social world and ensuring trustful relationships is a promising peacebuilding and potentially de-securitizing approach to explore in education.
description: JSSE - Journal of Social Science Education, Bd. 22 Nr. 1 (2023): Schools as securitised spaces
Quantum-classical comparison: arrival times and statistics
Creators: name: Mousavi, S. V.
name: Miret-Artés, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Classical and quantum scattering of a non-Gaussian wave packet by a rectangular barrier is studied in terms of arrival times to a given detector location. A classical wave equation, proposed by N. Rosen [{\it{Am. J. Phys.}} {\bf 32} (1964) 377], is used to study the corresponding classical dynamics. Mean arrival times are then computed and compared for different values of initial wave packet parameters and barrier width. The agreement is improved in the large mass limit as one expects. A short comment on the possibility of generalization of Rosen's proposal to a two-body system is given. Differences in distributions of particles obeying different statistics are studied by considering a system composed of two free particles.
Native and non-native bees (Anthophila) of Santa Cruz Island: An annotated checklist
Creators: name: Seltmann, Katja C.
name: Dewey, David
name: Hobson, Evan
name: McLaren, Lynn
name: Thrift, Charlie
name: Wood, Zoe
Publisher: name: Zenodo
Year: 2021
Subjects: checklist, bees, Apoidea, Santa Cruz Island, Hymenoptera

description: This checklist of Santa Cruz Island bees includes information from prior publications, a previous checklist by Robbin Thorp, iNaturalist observations, natural history collection specimens, and recent collections by the authors. The checklist includes information about the collectors and determiners of the specimens. Many of the specimens were determined to species by John S. Ascher, Robbin Thorp, or Jaime Pawelek. Taxonomy follows Ascher, J. S. and J. Pickering. 2020. Discover Life bee species guide and world checklist (Hymenoptera: Apoidea: Anthophila). http://www.discoverlife.org/mp/20q?guide=Apoidea_species. This is version 0.01 and part of an ongoing survey to document the bee species of Santa Cruz Island. The reports are published in versions once a year. Questions and comments about the checklist should be emailed to Katja Seltmann (seltmann@ucsb.edu). This version of the checklist was built using the UCSB Symbiota portal and https://symbiota.ccber.ucsb.edu/checklists/checklist.php?cl=33
Social science education under digital conditions: The role of creativity in media practices on social networks
Creators: name: Muschaweck, Isabelle
name: Falkenstein, David
name: Kanwischer, Detlef
name: Engartner, Tim
Publisher: name: JSSE - Journal of Social Science Education
Year: 2023

description: Purpose: This paper explores social media practices with an exemplarily focus on constructions of space and social movements. It aims at identifying prospects for social science education under digital conditions regarding the reconfiguration of content and possibilities for digital literacy. Approach: By reviewing and summarizing popular strands of discussion on the application of social media practices in constructions of spaces and social movements, we identify common didactical themes from an educational perspective. Subsequently, we discuss social networks as real-world learning contexts in light of creative practices. Findings: Building on this, we derive theoretical implications for social science education for teaching and learning within social networks with a special focus on creativity. Following this, we present implications for social science literacy as well as digital literacy, which are two sides of the same coin. Practical implications: Finally, we present implications for future research and outline prospects for a future social science education.
description: JSSE - Journal of Social Science Education, Bd. 22 Nr. 1 (2023): Schools as securitised spaces
From playground extremism to neo-Nazi ideology: Finnish educators' perceptions of violent radicalisation and extremism in educational institutions
Creators: name: Vallinkoski, Katja
name: Benjamin, Saija
Publisher: name: JSSE - Journal of Social Science Education
Year: 2023

description: Purpose: The role of formal education is currently viewed as central in preventing violent radicalisation and extremism (VRE), however educators' understanding, or competences have not been developed accordingly. Therefore, this study critically investigates Finnish educators' perceptions of presumed manifestations of VRE among their students. Findings: Finnish educators confront ideologically and morally challenging situations, some of which include extremist features. They do, however, have difficulties in distinguishing VRE from other types of motives for hostile or violent rhetoric or behaviour, especially if students from societal minority groups are involved. Practical implications: False labeling may have negative consequences on students. Educators' need VRE-related in-service trainings that focus on increasing educators' knowledge and reflection on their VRE-related preconceptions and intuitive responses to these. Research limitations: We acknowledge the possible skewedness of the survey data as responding may have felt more appealing to those educators who have encountered VRE or who are interested or worried about VRE.
description: JSSE - Journal of Social Science Education, Bd. 22 Nr. 1 (2023): Schools as securitised spaces
Rozansky-Witten-type invariants from symplectic Lie pairs
Creators: name: Voglaire, Yannick
name: Xu, Ping
Publisher: name: arXiv
Year: 2013
Subjects: subject: Differential Geometry (math.DG)
subject: High Energy Physics - Theory (hep-th)
subject: Algebraic Geometry (math.AG)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We introduce symplectic structures on "Lie pairs" of (real or complex) algebroids as studied by Chen, Stienon and the second author (From Atiyah classes to homotopy Leibniz algebras, arXiv:1204.1075), encompassing homogeneous symplectic spaces, symplectic manifolds with a $\mathfrak g$-action and holomorphic symplectic manifolds. We show that to each such symplectic Lie pair are associated Rozansky-Witten-type invariants of three-manifolds and knots, given respectively by weight systems on trivalent and chord diagrams.
description: 26 pages, final version
title: The Revised Systematics and Paleoecology of the Devonian Stemless Crinoid Genus Edriocrinus Hall, 1858
Creators: name: Herbert, Betsy
Publisher: name: University of Kentucky Libraries
Year: 2022
Subjects: subject: FOS: Earth and related environmental sciences
valueUri: http://www.oecd.org/science/inno/38235147.pdf

description: New morphological observations of Edriocrinus Hall, 1858, enable a modern, holistic view of this unusual crinoid genus, previously included in the Superorder Flexibilia (Zittel, 1895) Wright et al., 2017. Re-analysis of Edriocrinus suggests that the genus should now be assigned to the Order ‘Dendrocrinida’ within the Magnorder Eucladida Wright, 2017 based on the five infrabasals, single radianal in the cup, absent anal sac, and non-pinnulate arms with rectangular uniserial brachials. Moreover, examination of the slight variations separating the current 14 Edriocrinus species indicates that these “species” are likely ecophenotypes. The current Edriocrinus species are revised based on firmly bound calyx plates; five high infrabasals; lack of patelloid processes; straight muscular radial articulations; brachials that are free above the radials; and muscular articulation between brachials and synonymized to four species, E. pocilliformis, E. sacculus, E. pyriformis, and E. dispansus. Edriocrinus is restricted to a ~25 Myr interval in the Early and Middle Devonian, a time of global eustatic and tectonic disruption, when its stemlessness provided an adaptive advantage throughout environments in the Old World and Eastern Americas realms. These realms were in subtropical to warm temperate climatic zones that encompassed the Rheic Ocean between 25°and 35⁰ south latitude. Edriocrinus is found in formerly adjacent parts of east-central North America, south-central Europe, southern England, and northern Africa. The genus persisted in south-central Europe until the Chotec Event in early Eifelian time and in North America until the Bakoven Event in mid-Eifelian time, when episodes of transgression and anoxia led to genus extinction.
description: © 2022 Catherine E. Herbert
Classification of partially hyperbolic diffeomorphisms in 3-manifolds with solvable fundamental group
Creators: name: Hammerlindl, Andy
name: Potrie, Rafael
Publisher: name: arXiv
Year: 2013
Subjects: subject: Dynamical Systems (math.DS)
subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 37C05, 37C20, 37C25, 37C29, 37D30, 57R30

description: A classification of partially hyperbolic diffeomorphisms on 3-dimensional manifolds with (virtually) solvable fundamental group is obtained. If such a diffeomorphism does not admit a periodic attracting or repelling two-dimensional torus, it is dynamically coherent and leaf conjugate to a known algebraic example. This classification includes manifolds which support Anosov flows, and it confirms conjectures by Rodriguez Hertz--Rodriguez Hertz--Ures and Pujals in the specific case of solvable fundamental group.
description: 36 pages, 3 figures. To appear in the Journal of Topology
Civic reasoning about power issues: The criticality of agency, arena and relativity
Creators: name: Tväråna, Malin
name: Jägerskog, Ann-Sofie
Publisher: name: JSSE - Journal of Social Science Education
Year: 2023

description: Purpose: The study examines students' conceptions of power and important aspects of teaching for developing the ability to analyse power relations in social science. Methodology: Phenomenography is used in the analysis of 155 student essays, to identify different ways of analysing societal power issues. Findings: When conducting a qualified analysis of a societal power issue, it is crucial that students discern that power is tied to an agent, that power is exercised through agency in specific contextual power arenas, and that they understand how power is relative to the power of other agents in the same arena. Research limitations: The study focuses on Swedish upper secondary students. Comparisons with other groups of learners are welcomed. Practical implications: The critical aspects identified should be used as a basis for teaching designs. Findings imply that the meaning of power as a concept should be highlighted in social science teacher education.
description: JSSE - Journal of Social Science Education, Bd. 22 Nr. 1 (2023): Schools as securitised spaces
Devrait-on obliger l'utilisation de la webcam en séance synchrone ?
Creators: name: Boudreau, Alex
name: Dubé, Marianne
Publisher: name: Université de Sherbrooke
Year: 2021
Subjects: Formation à distance
Enseignement à distance
Pédagogie universitaire
Enseignement universitaire
Visioconférences sur Internet en éducation
Classes (Éducation)--Conduite
Webcams

description: Devrait-on obliger les personnes étudiantes à activer leur webcam en séance synchrone ? La question de la webcam est plus complexe qu’elle n’y parait et mérite d’être détaillée. Ce texte explore l’utilisation de la webcam en séance synchrone selon cinq aspects et propose des recommandations.
description: Ressources éducatives libres

REL

Open Educational Resources

OER
5D Super Yang-Mills on $Y^{p,q}$ Sasaki-Einstein manifolds
Creators: name: Qiu, Jian
name: Zabzine, Maxim
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: On any simply connected Sasaki-Einstein five dimensional manifold one can construct a super Yang-Mills theory which preserves at least two supersymmetries. We study the special case of toric Sasaki-Einstein manifolds known as $Y^{p,q}$ manifolds. We use the localisation technique to compute the full perturbative part of the partition function. The full equivariant result is expressed in terms of certain special function which appears to be a curious generalisation of the triple sine function. As an application of our general result we study the large $N$ behaviour for the case of single hypermultiplet in adjoint representation and we derive the $N^3$-behaviour in this case.
description: 43 pages, typos and mistakes corrected
FPGA Based, Modular, Configurable Controller with Fast Synchronous Optical Network
Creators: name: Graczyk, Rafal
name: Pozniak, Krzysztof
name: Romaniuk, Ryszard S.
name: DESY
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 2006
Subjects: control system
computer
fast logic
optics: fibre
optics: communications
measurement-control systems
distributed systems
programmable circuits
FPGA
behavioral programming with parameterization
VHDL
optical multi-gigabit transmission
industrial communications interfaces

description: TESLA Report (2006).
description: The paper describes a configurable controller equipped with programmable VLSI FPGA circuit, universal expansion modules PMC, synchronous, optical, multi-gigabit links, commonly used industrial and computer communication interfaces, Ethernet 100TB, system of automatic initialization ACE etc. There are characterized the basic functional characteristics of the device. The possibilities of its usage in various work modes were presented. Realization of particular blocks of the device were discussed. Resulting, during the realization of this project, new hardware layer solutions were also characterized.
description: Published by DESY, Hamburg
Holographic Charged Renyi Entropies
Creators: name: Belin, Alexandre
name: Hung, Ling-Yan
name: Maloney, Alexander
name: Matsuura, Shunji
name: Myers, Robert C.
name: Sierens, Todd
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We construct a new class of entanglement measures by extending the usual definition of Renyi entropy to include a chemical potential. These charged Renyi entropies measure the degree of entanglement in different charge sectors of the theory and are given by Euclidean path integrals with the insertion of a Wilson line encircling the entangling surface. We compute these entropies for a spherical entangling surface in CFT's with holographic duals, where they are related to entropies of charged black holes with hyperbolic horizons. We also compute charged Renyi entropies in free field theories.
description: 58 pages, v2 - figures fixed and references added
CONSTRAINTS ON NEUTRON STAR STRUCTURE FROM PULSAR GLITCHES
Creators: name: MONTOLI, ALESSANDRO
Publisher: name: Universit� degli Studi di Milano
Year: 2020

description: Neutron stars are among the densest objects in the Universe, making them a perfect laboratory to study nuclear matter under extreme conditions. Pulsars ? rapidly rotating magnetised neutron stars ? are one of their possible manifestations, being observed as an extremely regular periodic emission in the radio spectrum. This radiation is produced by converting their rotational energy and, because of this, pulsars are expected to spin down. Some of them, however, have been observed exhibiting sudden accelerations in their rotation, also known as glitches. Nowadays, pulsar glitches are interpreted as the manifestation of vortex dynamics in the internal neutron superfluid, which lags behind the observable charged component in spinning down, occasionally releasing angular momentum to it and giving rise to a glitch. In this work, we will present three different observational characteristics of a glitching pulsar ? its largest glitch, its average acceleration due to glitches and its short-time evolution after a glitch ? and we will try to extract information about the neutron star from each of them. In particular, we will try to set constraints on the mass of the star, the moment of inertia of its reservoir component and several other quantities tied to the glitch phenomenon, with the ultimate goal of increasing our knowledge about the properties of matter at densities above those of terrestrial nuclei.
Extracting research data from historical documents with eScriptorium and Python
Creators: name: Kamlah, Jan
name: Schmidt, Thomas
name: Shigapov, Renat
Publisher: name: Zenodo
Year: 2022

description: This talk presents a workflow based on eScriptorium and Python to extract research data from historical documents. eScriptorium is a rather young transcription tool and uses the OCR engine Kraken. The software offers not only the possibility of optimally adapting the text recognition, but also the layout recognition to the source material by means of training. Due to the high research data quality requirements, this step is necessary in many cases. By using existing base models, the training effort can be drastically reduced. The text recognition results can then be exported in PAGE-XML format for further processing. For this purpose, the Python tool “blatt” was developed within the project. It can parse the PAGE-XML exports, sort and extract the contents using algorithms and templates, and convert them into a structured table format such as CSV. In the first part of the presentation there is small introduction to the topic, the source material and the research question. Then we show how a training process based on a base model with minimal training data can be performed using the software eScriptorium and which problem to pay attention to. In the last section, the Python tool “blatt” is presented, as well as the underlying ideas and algorithms.
Adolescents’ learning of civics in linguistically diverse classrooms: A thematic literature review
Creators: name: Rinnemaa, Pantea
Publisher: name: JSSE - Journal of Social Science Education
Year: 2023

description: Purpose: This article explores the interrelationship between second-language students’ literacy development and civics learning in studies focusing on L2 students’ civics learning. Design/methodology/approach: The conceptual framework and the analytical tool in this thematic literature review consists of a four-field model in which the four key components of a. literacy abilities, b. disciplinary literacy abilities, c. prior knowledge, and d. content-area knowledge are in focus. Findings: It is suggested that an interaction between the four components (a-d) could support the students’ civics learning and literacy development. Civics teachers play a crucial role in making the content knowledge comprehensible. Second-language students’ language- and content-related difficulties are better understood in connection to the civics tasks and activities that they work with in civics classrooms. Practical implications: This article addresses issues of continuous education in civics for teachers in L2 civics classrooms.
description: JSSE - Journal of Social Science Education, Bd. 22 Nr. 1 (2023): Schools as securitised spaces
The Perkins INfrared Exosatellite Survey (PINES) II. Transit Candidates and Implications for Planet Occurrence around L and T Dwarfs
Creators: name: Tamburo, Patrick
name: Muirhead, Philip S.
name: McCarthy, Allison M.
name: Hart, Murdock
name: Vos, Johanna M.
name: Agol, Eric
name: Theissen, Christopher
name: Gracia, David
name: Gagliuffi, Daniella C. Bardalez
name: Faherty, Jacqueline
Publisher: name: arXiv
Year: 2022
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We describe a new transit detection algorithm designed to detect single transit events in discontinuous Perkins INfrared Exosatellite Survey (PINES) observations of L and T dwarfs. We use this algorithm to search for transits in 131 PINES light curves and identify two transit candidates: 2MASS J18212815+1414010 (2MASS J1821+1414) and 2MASS J08350622+1953050 (2MASS J0835+1953). We disfavor 2MASS J1821+1414 as a genuine transit candidate due to the known variability properties of the source. We cannot rule out the planetary nature of 2MASS J0835+1953's candidate event and perform follow-up observations in an attempt to recover a second transit. A repeat event has yet to be observed, but these observations suggest that target variability is an unlikely cause of the candidate transit. We perform a Markov chain Monte Carlo simulation of the light curve and estimate a planet radius ranging from $4.2^{+3.5}_{-1.6}R_\oplus$ to $5.8^{+4.8}_{-2.1}R_\oplus$, depending on the host's age. Finally, we perform an injection and recovery simulation on our light curve sample. We inject planets into our data using measured M dwarf planet occurrence rates and attempt to recover them using our transit search algorithm. Our detection rates suggest that, assuming M dwarf planet occurrence rates, we should have roughly a 1$\%$ chance of detecting a candidate that could cause the transit depth we observe for 2MASS J0835+1953. If 2MASS J0835+1953 b is confirmed, it would suggest an enhancement in the occurrence of short-period planets around L and T dwarfs in comparison to M dwarfs, which would challenge predictions from planet formation models.
description: 23 pages, 15 figures, accepted to AJ
STOCHASTIC EQUATIONS WITH FRACTIONAL NOISE: CONTINUITY IN LAW AND APPLICATIONS
Creators: name: GIORDANO, LUCA MARIA
Publisher: name: Universit� degli Studi di Milano
Year: 2020

description: The objective of the thesis is to study some properties and applications of stochastic equations driven by a fractional Brownian motion with Hurst parameter H. I n particular, we study the continuity with respect to H of the heat and wave multiplicative and additive stochastic partial differential equations driven by a noise which is white in the time variable and behaves like a fractional Brownian motion in the space variable. Morevoer, we study an analogous problem for a class of one-dimensional stochastic differential equations driven by a fractional noise, in the setting of rough paths theory. On the side of applications, we define and evaluate a stochastic model with the objective of forecasting the future electricity prices in the italian market. This model includes as the main stochastic component an equation driven by a fractional Brownian motion, plus a jump component which shows self-exciting properties, namely a Hawkes process.
Staff Meeting; Mr. Manohan/Dr. Yen with PRRM-IIRR group
Creators: name: (:Unav)
Publisher: name: Columbia University
Year: 2021

description: Tape 1A: Staff Meeting 1:30-2:30; side 1B: 2:30-3:00. Tape 2A: Staff Meeting #3, Mr. Manohan/Dr. Yen with PRRM-IIRR group, 1974 August 12; side 2B: Staff Meeting #4, cont. PRRM August 12 #2. Tape 3A: cont. August 12 with PRRM #3; side 3B: cont. Dr. Yen 26th August 1974/IIRR General Assembly, Staff meeting #6. Tape 4A: Institute Functions, Staff meeting #7; side 4B: Staff meeting #8
Short Term Memory Capacity in Networks via the Restricted Isometry Property
Creators: name: Charles, Adam S.
name: Yap, Han Lun
name: Rozell, Christopher J.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Information Theory (cs.IT)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Cortical networks are hypothesized to rely on transient network activity to support short term memory (STM). In this paper we study the capacity of randomly connected recurrent linear networks for performing STM when the input signals are approximately sparse in some basis. We leverage results from compressed sensing to provide rigorous non asymptotic recovery guarantees, quantifying the impact of the input sparsity level, the input sparsity basis, and the network characteristics on the system capacity. Our analysis demonstrates that network memory capacities can scale superlinearly with the number of nodes, and in some situations can achieve STM capacities that are much larger than the network size. We provide perfect recovery guarantees for finite sequences and recovery bounds for infinite sequences. The latter analysis predicts that network STM systems may have an optimal recovery length that balances errors due to omission and recall mistakes. Furthermore, we show that the conditions yielding optimal STM capacity can be embodied in several network topologies, including networks with sparse or dense connectivities.
description: 50 pages, 5 figures
A 2-category of chronological cobordisms and odd Khovanov homology
Creators: name: Putyra, Krzysztof K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Geometric Topology (math.GT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 55N35, 57M27, 17D99

description: We create a framework for odd Khovanov homology in the spirit of Bar-Natan's construction for the ordinary Khovanov homology. Namely, we express the cube of resolutions of a link diagram as a diagram in a certain 2-category of chronological cobordisms and show that it is 2-commutative: the composition of 2-morphisms along any 3-dimensional subcube is trivial. This allows us to create a chain complex, whose homotopy type modulo certain relations is a link invariant. Both the original and the odd Khovanov homology can be recovered from this construction by applying certain strict 2-functors. We describe other possible choices of functors, including the one that covers both homology theories and another generalizing dotted cobordisms to the odd setting. Our construction works as well for tangles and is conjectured to be functorial up to sign with respect to tangle cobordisms.
description: 60 pages, 15 figures (PS-tricks). This is an extended version of arxiv:1004.0889, with a rewritten proof of invariance of the generalized complex. Changes in the second version: presentation of chronological cobordisms is better explained, functoriality w/r to tangle cobordisms is conjectured
Kneading determinants of infinite order linear recurrences
Creators: name: Alves, João F.
name: Bravo, António
name: Oliveira, Henrique M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Rings and Algebras (math.RA)
subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 15A15, 39A06

description: Infinite order linear recurrences are studied via kneading matrices and kneading determinants. The concepts of kneading matrix and kneading determinant of an infinite order linear recurrence, introduced in this work, are defined in a purely linear algebraic context. These concepts extend the classical notions of Frobenius companion matrix to infinite order linear recurrences and to the associated discriminant of finite order linear recurrences. Asymptotic Binet formulas are deduced for general classes of infinite order linear recurrences as a consequence of the analytical properties of the generating functions obtained for the solutions of these infinite order linear recurrences.
description: 18 Pages