cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Projective Compactness and Conformal Boundaries
Creators: name: Cap, Andreas
name: Gover, A. Rod
Publisher: name: arXiv
Year: 2014
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: Primary 53A20, 53B21, 53B10, Secondary 35N10, 53A30, 58J60

description: Let $\overline{M}$ be a smooth manifold with boundary $\partial M$ and interior $M$. Consider an affine connection $\nabla$ on $M$ for which the boundary is at infinity. Then $\nabla$ is projectively compact of order $α$ if the projective structure defined by $\nabla$ smoothly extends to all of $\overline{M}$ in a specific way that depends on no particular choice of boundary defining function. Via the Levi--Civita connection, this concept applies to pseudo--Riemannian metrics on $M$. We study the relation between interior geometry and the possibilities for compactification, and then develop the tools that describe the induced geometry on the boundary. We prove that a pseudo--Riemannian metric on $M$ which is projectively compact of order two admits a certain asymptotic form. This form was known to be sufficient for projective compactness, so the result establishes that it provides an equivalent characterization. From a projectively compact connection on $M$, one obtains a projective structure on $\overline{M}$, which induces a conformal class of (possibly degenerate) bundle metrics on the tangent bundle to the hypersurface $\partial M$. Using the asymptotic form, we prove that in the case of metrics, which are projectively compact of order two, this boundary structure is always non--degenerate. We also prove that in this case the metric is necessarily asymptotically Einstein, in a natural sense. Finally, a non--degenerate boundary geometry gives rise to a (conformal) standard tractor bundle endowed with a canonical linear connection, and we explicitly describe these in terms of the projective data of the interior geometry.
description: Substantially revised, including simpler arguments for many of the main results. 32 pages, comments are welcome
title: "Topographie des NS-Terrors in München"; 1999
title: Wittelsbacher Palais: Gestapo-Zentrale - Gestapo-Gefängnis
titleType: Subtitle
Creators: name: Bäumler, Klaus
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2022

description: NT: Gedenktag für die Opfer des Nationalsozialismus 1999
The Quality and Attitude of High School Teachers of Economics in Japan: An Explanation of Sample Data
Creators: name: Asano, Tadayoshi
name: Yamaoka, Michio
name: Abe, Shintaro
Publisher: name: JSSE - Journal of Social Science Education
Year: 2012

description: Students’ economic literacy depends on the contents they learn in school as well as at home. It also depends on teachers’ ability to teach and explain economic concepts and principles in the way students can understand them. But, it is very doubtful whether all the high school teachers of civics who teach economics have excellent knowledge and good teaching skill in economics. Because the authors know that only a few civics teachers in Japan had studied economics as a major subject when they were undergraduate students. In order to prove these facts, the authors conducted a nationwide survey using a questionnaire concerning personal attributes, attitude toward economic issues, and thinking about economy and economics of high school teachers of civics in Japan in 2009. 1,574 samples were collected out of around 14,000 civics teachers from every prefecture in Japan, and their answers were turned into data set for analysis. These samples proved to have high external validity representing their population, and results of analysis may reveal the characteristics of Japanese high school teachers of civics teaching economics. Findings of our survey will help improve the quality of economic education in Japan, especially the quality and attitude of economics teachers in high school.
description: JSSE - Journal of Social Science Education, 2-2013: Crisis and Economic Education in Europe
The SAMI Galaxy Survey: instrument specification and target selection
Creators: name: Bryant, J. J.
name: Owers, M. S.
name: Robotham, A. S. G.
name: Croom, S. M.
name: Driver, S. P.
name: Drinkwater, M. J.
name: Lorente, N. P. F.
name: Cortese, L.
name: Scott, N.
name: Colless, M.
name: Schaefer, A.
name: Taylor, E. N.
name: Konstantopoulos, I. S.
name: Allen, J. T.
name: Baldry, I.
name: Barnes, L.
name: Bauer, A. E.
name: Bland-Hawthorn, J.
name: Bloom, J. V.
name: Brooks, A. M.
name: Brough, S.
name: Cecil, G.
name: Couch, W.
name: Croton, D.
name: Davies, R.
name: Ellis, S.
name: Fogarty, L. M. R.
name: Foster, C.
name: Glazebrook, K.
name: Goodwin, M.
name: Green, A.
name: Gunawardhana, M. L.
name: Hampton, E.
name: Ho, I. -T.
name: Hopkins, A. M.
name: Kewley, L.
name: Lawrence, J. S.
name: Leon-Saval, S. G.
name: Leslie, S.
name: Lewis, G.
name: Liske, J.
name: Lopez-Sanchez, A. R.
name: Mahajan, S.
name: Medling, A. M.
name: Metcalfe, N.
name: Meyer, M.
name: Mould, J.
name: Obreschkow, D.
name: O'Toole, S.
name: Pracy, M.
name: Richards, S. N.
name: Shanks, T.
name: Sharp, R.
name: Sweet, S. M.
name: Thomas, A. D.
name: Tonini, C.
name: Walcher, C. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The SAMI Galaxy Survey will observe 3400 galaxies with the Sydney-AAO Multi-object Integral-field spectrograph (SAMI) on the Anglo-Australian Telescope (AAT) in a 3-year survey which began in 2013. We present the throughput of the SAMI system, the science basis and specifications for the target selection, the survey observation plan and the combined properties of the selected galaxies. The survey includes four volume limited galaxy samples based on cuts in a proxy for stellar mass, along with low-stellar mass dwarf galaxies all selected from the Galaxy And Mass Assembly (GAMA) survey. The GAMA regions were selected because of the vast array of ancillary data available, including ultraviolet through to radio bands. These fields are on the celestial equator at 9, 12, and 14.5 hours, and cover a total of 144 square degrees (in GAMA-I). Higher density environments are also included with the addition of eight clusters. The clusters have spectroscopy from 2dFGRS and SDSS and photometry in regions covered by the Sloan Digital Sky Survey (SDSS) and/or VLT Survey Telescope/ATLAS. The aim is to cover a broad range in stellar mass and environment, and therefore the primary survey targets cover redshifts 0.004 < z < 0.095, magnitudes r$_{pet}$ < 19.4, stellar masses $10^{7} - 10^{12}$ M$_{sol}$, and environments from isolated field galaxies through groups to clusters of $10^{15}$ M$_{sol}$.
description: 19 figures; Published in MNRAS 447, 2857, 2015
Figures, images, spaces: The place of photography
Creators: name: Beilharz, Peter
Publisher: name: La Trobe
Year: 2023
Subjects: classificationCode: 360604
subject: Photography, video and lens-based practice
classificationCode: 3601
subject: Art history, theory and criticism

description: “Zygmunt Bauman (1925–2017) is a household name for those who read in social theory, sociology, cultural studies. Across sixty books in English and many essays, he is widely known as the puzzler of the modern, postmodern, liquid modern and its subsets, such as liquid love. I was fortunate, together with others, to get to know him, and his wife, Janina. This necessarily meant visiting, from Australia, staying chez Bauman and entering momentarily into the everyday life cycle of Lawnswood Gardens. It meant being inserted into his household.”
How can Economics Education be Implemented without a Separate Subject? A Case Study from Germany
Creators: name: Weyland, Michael
name: Rehm, Marco
Publisher: name: JSSE - Journal of Social Science Education
Year: 2012

description: The discussion about the pros and cons of economics as a school subject has been going on for many years – and agreement has still not been reached. It is therefore useful to set aside the debate about economics as a school subject for now and to address the question of how social science-based economics education in mainstream schools can be designed in such a way to be successful. During the 2012 conference of the Association of European Economics Education (AEEE), approximately 100 teachers, teacher trainers, inspectors and researchers with a professional interest in economics and business education from all over Europe visited a German grammar school with a focus on economics education. The Siebengebirgsgymnasium in Bad Honnef strives to provide all pupils with a basic economics education and a selection of additional social science-oriented classes. Using some exemplary projects it has been demonstrated how, since 2003, the Siebengebirgsgymnasium has been dedicated to constructively addressing the Kaminski-Hedtke controversy about politics and economics education and to fostering a creative and social science-based economics education. Die Diskussion über die Vor- und Nachteile eines Schulfachs Wirtschaft wird seit vielen Jahren geführt – und eine Einigung ist nicht in Sicht. Es erscheint daher sinnvoll, die Debatte über das Für und Wider eines Schulfachs Wirtschaft vorerst auszublenden und sich gemeinsam der Frage zuzuwenden, wie eine sozialwissenschaftlich fundierte ökonomische Bildung an allgemeinbildenden Schulen konkret ausgestaltet werden kann, damit sie erfolgreich ist. Im Rahmen der internationalen Tagung der Association of European Economics Education (AEEE) 2012 besuchten etwa 100 Lehrer, Seminarleiter, Inspektoren und Wissenschaftler aus ganz Europa eine allgemeinbildende deutsche Schule mit einem ökonomischem Profil. Das Städtische Siebengebirgsgymnasium hat es sich zum Ziel gesetzt, allen Schülerinnen und Schülern eine ökonomische Grundbildung zu vermitteln, um sie auf ein eigenverantwortliches Leben in einer zunehmend komplexen Gesellschaft vorzubereiten.. Anhand einiger exemplarischer Projekte wird aufgezeigt, wie diese Schule seit 2003 versucht, die Kaminski-Hedtke-Kontroverse kreativ zu wenden und eine sozialwissenschaftlich fundierte ökonomische Bildung zu realisieren.
description: JSSE - Journal of Social Science Education, 2-2013: Crisis and Economic Education in Europe
Thermality of the Hawking flux
Creators: name: Visser, Matt
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Is the Hawking flux "thermal"? Unfortunately, the answer to this seemingly innocent question depends on a number of often unstated, but quite crucial, technical assumptions built into modern (mis-)interpretations of the word "thermal". The original 1850's notions of thermality --- based on classical thermodynamic reasoning applied to idealized "black bodies" or "lamp black surfaces" --- when supplemented by specific basic quantum ideas from the early 1900's, immediately led to the notion of the black-body spectrum, (the Planck-shaped spectrum), but "without" any specific assumptions or conclusions regarding correlations between the quanta. Many (not all) modern authors (often implicitly and unintentionally) add an extra, and quite unnecessary, assumption that there are no correlations in the black-body radiation; but such usage is profoundly ahistorical and dangerously misleading. Specifically, the Hawking flux from an evaporating black hole, (just like the radiation flux from a leaky furnace or a burning lump of coal), is only "approximately" Planck-shaped over a bounded frequency range. Standard physics (phase space and adiabaticity effects) explicitly bound the frequency range over which the Hawking flux is "approximately" Planck-shaped from both above and below --- the Hawking flux is certainly not exactly Planckian, and there is no compelling physics reason to assume the Hawking photons are uncorrelated.
description: V1: 13 pages. V2: Now 17 pages. 3 references added; other references updated; new section on the relationship between past and future null infinity; small edits throughout the text. V3: Now 19 pages. 4 more references added; extra discussion/small edits. No physics changes
Penalized versus constrained generalized eigenvalue problems
Creators: name: Gaynanova, Irina
name: Booth, James
name: Wells, Martin T.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computation (stat.CO)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: We investigate the difference between using an $\ell_1$ penalty versus an $\ell_1$ constraint in generalized eigenvalue problems, such as principal component analysis and discriminant analysis. Our main finding is that an $\ell_1$ penalty may fail to provide very sparse solutions; a severe disadvantage for variable selection that can be remedied by using an $\ell_1$ constraint. Our claims are supported both by empirical evidence and theoretical analysis. Finally, we illustrate the advantages of an $\ell_1$ constraint in the context of discriminant analysis and principal component analysis.
description: 18 pages, 8 figures
Simplex valence-bond crystal in the spin-1 kagome Heisenberg antiferromagnet
Creators: name: Liu, Tao
name: Li, Wei
name: Weichselbaum, Andreas
name: von Delft, Jan
name: Su, Gang
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the ground state properties of a spin-1 kagome antiferromagnetic Heisenberg model using tensor-network (TN) methods. We obtain the energy per site {$e_0=-1.41090(2)$ with $D^*=8$ multiplets retained (i.e., a bond dimension of $D=24$), and $e_0=-1.4116(4)$ from large-$D$ extrapolation,} by accurate TN calculations directly in the thermodynamic limit. The symmetry between the two kinds of triangles is spontaneously broken, with a relative energy difference of $δ\approx$ 19\%, i.e, there is a trimerization (simplex) valence-bond order in the ground state. The spin-spin, dimer-dimer, and chirality-chirality correlation functions are found to decay exponentially with a rather short correlation length, showing that the ground state is gapped. We thus identify the ground state be a simplex valence-bond crystal (SVBC). We also discuss the spin-1 bilinear-biquadratic Heisenberg model on a kagome lattice, and determine its ground state phase diagram. Moreover, we implement non-abelian symmetries, here spin SU(2), in the TN algorithm, which improves the efficiency greatly and provides insight into the tensor structures.
description: published version
Continuing the Conversation on the Chilean Student Movement
Creators: name: Hernandez, Ivette
Publisher: name: JSSE - Journal of Social Science Education
Year: 2013

description: This current article is an interview made with Francisco Figueroa. Francisco is a Chilean university student who was Vice-President of Student Federation from University of Chile between 2010 and 2011. He, like other students, was leading the mass student demonstrations in 2011 who demanded a radical reform of the Chilean education system. As a militant of Autonomous Left and director of Fundacion Nodo XXI, he gave in this interview his own political opinion about process of political construction of the student movement and what challenges the student movement is currently facing in order to create possibilities for a deep social and radical transformation of democracy and education in the Chilean society.
description: JSSE - Journal of Social Science Education, 3-2013 Education and Citizenship in Latin America
Particle acceleration and wave excitation in quasi-parallel high-Mach-number collisionless shocks: Particle-in-cell simulation
Creators: name: Kato, Tsunehiko N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Plasma Physics (physics.plasm-ph)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: We herein investigate shock formation and particle acceleration processes for both protons and electrons in a quasi-parallel high-Mach-number collisionless shock through a long-term, large-scale particle-in-cell simulation. We show that both protons and electrons are accelerated in the shock and that these accelerated particles generate large-amplitude Alfvénic waves in the upstream region of the shock. After the upstream waves have grown sufficiently, the local structure of the collisionless shock becomes substantially similar to that of a quasi-perpendicular shock due to the large transverse magnetic field of the waves. A fraction of protons are accelerated in the shock with a power-law-like energy distribution. The rate of proton injection to the acceleration process is approximately constant, and in the injection process, the phase-trapping mechanism for the protons by the upstream waves can play an important role. The dominant acceleration process is a Fermi-like process through repeated shock crossings of the protons. This process is a `fast' process in the sense that the time required for most of the accelerated protons to complete one cycle of the acceleration process is much shorter than the diffusion time. A fraction of the electrons is also accelerated by the same mechanism, and have a power-law-like energy distribution. However, the injection does not enter a steady state during the simulation, which may be related to the intermittent activity of the upstream waves. Upstream of the shock, a fraction of the electrons is pre-accelerated before reaching the shock, which may contribute to steady electron injection at a later time.
description: 10 pages, 19 figures. Accepted for publication in the Astrophysical Journal
title: Entwicklung Lezithin-basierter Nanoemulsionen mit Ginseng-Trockenextrakt
Creators: name: Strohmaier, Simone
Year: 2022

description: Panax Ginseng hat aufgrund der antioxidativen Wirkung seiner Hauptinhaltsstoffe, der Ginsenoside, ein großes Potential in kosmetischen Anti Aging-Produkten. Jedoch ist die dermale Anwendung von Ginseng-Extrakt im europäischen Raum wenig erforscht. Das Ziel dieser Masterarbeit war es daher, eine stabile Formulierung für Panax Ginseng-Trockenextrakt zu entwickeln. Verschiedene lezithin-basierte Nanoemulsionen sollten mittels Co-Tensiden (Monoacylphosphatidylcholin, Saccharoseester, Polysorbat 80) optimiert werden, um Extrakt-haltige Formulierungen mit guter Lagerstabilität herzustellen. Zu diesem Zweck wurden Nanoemulsionen mit und ohne Extrakt mittels Hochdruckhomogenisation hergestellt, charakterisiert und über 12 Wochen analysiert. Für die Charakterisierung und Stabilitätskontrolle wurden Partikelgröße, Zetapotential und PDI gemessen. pH-Messungen, rheologische Messungen und Gehaltsbestimmung mittels UHPLC-MS kamen ebenfalls zum Einsatz. Im Anschluss an die Stabilitätsuntersuchungen wurden Permeationsstudien mithilfe von Franz-Diffusionszellen an Schweineohrenhaut durchgeführt. Es zeigte sich, dass Ginsengextrakt zur Destabilisierung von Nanoemulsionen auf Basis von Lezithin/Saccharoseester führte. Im Gegensatz dazu wiesen die Nanoemulsionen mit Lezithin/Lysolezithin bzw. Lezithin/Polysorbat 80 eine zufriedenstellende Lagerstabilität auf, wobei besonders gegen Ende des Messzeitraums Änderungen der Viskosität, des pH-Werts und des Ginsenosid Rg1-Gehalts der Lezithin/Lysolezithin-Nanoemulsion zu verzeichnen waren. Die Permeationsversuche zeigten, dass nur Ginsenosid Rg1, nicht aber Ginsenosid Rb1 durch das intakte Stratum corneum der Schweinehaut passieren konnte. Die beiden Vehikel unterschieden sich in ihrer Hautpermeation geringfügig; zudem erzielte eine wässrige Vergleichslösung mitunter höhere Permeationsraten. Dies könnte im ex vivo-Experiment auf eine bessere Löslichkeit des lipophilen Rg1 in den Nanoemulsionen und einen damit verbundenen Retardierungseffekt zurückzuführen sein.
SOX17 IS A CO-EFFECTOR IN WNT/BETA-CATENIN MEDIATED BLOOD-BRAIN BARRIER DEVELOPMENT AND MAINTENANCE
Creators: name: BHAT, GANESH
Publisher: name: Universit� degli Studi di Milano
Year: 2017

description: The presence of blood-brain barrier (BBB) at the level of endothelial cells (ECs) that line the capillaries in the brain is a challenge while treating intracranial tumors or many neurological disorders since BBB could block the passage of many solvents or drugs entering from systemic circulation to brain parenchyma. Researchers are trying to understand how BBB is induced during development and maintained in adult life in order to develop new tools to enhance drug delivery across BBB. Many signaling pathway that are active during BBB development are unraveled through mainly reverse genetic approach and gene knock out studies. Wnt/?-catenin signaling well known for its role in organ development, morphogenesis and in cancer causation is also reported to be essential for BBB induction and maintenance in most vertebrates. However many target molecules or effectors of this pathway remain to be identified. Previously we have identified Sox17 a SoxF family transcription factor, as a downstream molecule of Wnt/?-catenin signaling. It plays a key role in arterial differentiation of the vasculature of different organs. We found that Sox17 is also expressed at high levels in brain ECs throughout embryo development and in the adult vasculature. EC-specific gain of function of ?-catenin (GOF) increases Sox17 expression in BBB ECs and may induce ectopic expression of Sox17 also in the choroid plexus vasculature that lacks the BBB. We hypothesized therefore that Sox17 might be involved in BBB development and maintenance downstream to the Wnt pathway. In Sox17 null mice we analyzed different functional characteristics of BBB such as permeability control and specific markers expression. The absence of this transcription factor leads to increase in BBB permeability to high molecular weight molecules and marked increase in PLVAP, a protein inversely related to maturation of BBB. We also observed significant reduction in the ?-catenin signaling itself by employing BAT-gal reporter in Sox17 15 null background. In addition, many direct ?-catenin targets like Axin2 and LEF1 were decreased upon Sox17 abrogation. These data suggested that Sox17 is not only a target of ?-catenin signaling but also could maintain steady state, detectable levels of ?-catenin signaling. We could rescue ?-catenin signaling and correct BBB defects by either inhibiting the ?-catenin destruction complex or by employing GOF ?- catenin in Sox17 null background. Our study shows that Sox17 is an important regulator of BBB and it partially acts by sustaining ?-catenin signaling. Sox17 expression and signaling may be important in pathological conditions like intracranial tumors and modulation of its activity could have clinical implications and therapeutic benefits.
112 lines on smooth quartic surfaces (characteristic 3)
Creators: name: Rams, Slawomir
name: Schuett, Matthias
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: Over a field k of characteristic 3, we prove that there are no smooth quartic surfaces S in IP^3 with more than 112 lines. Moreover, the surface with 112 lines is projectively equivalent over k-bar to the Fermat quartic. As a key ingredient, we derive a characteristic free upper bound for the number of lines met by a quadric on a smooth quartic surface.
description: 11 pages; v2: minor edits following referee's comments
title: Deutsch als Zweitsprache: Sprachförderung im fachspezifischen Unterricht
Creators: name: Gregori, Maria Luisa
Year: 2022

description: Schulischer Erfolg hängt in Österreich nicht nur von allgemeinsprachlichen, sondern auch von bildungssprachlichen Kenntnissen ab. Im Interesse der Chancengleichheit ist es daher unabdingbar, dass Schüler:innen von Anfang an Deutsch als Zweitsprache auf bildungssprachlichem Niveau erlernen können. Die vorliegende Masterarbeit zeigt, dass die Entwicklung bildungssprachlicher Kompetenzen im Fachunterricht – und damit außerhalb des Deutschunterrichts - möglich ist. Dies beweisen zahlreiche Studien und Projekte in Deutschland und Österreich. Fraglich ist jedoch, ob dieser Anspruch durch die Fördermaßnahmen des Bundesministeriums für Bildung, Wissenschaft und Forschung erreicht werden kann. Denn die seit 2019 verpflichtenden Deutschförderklassen und Deutschförderkurse für Deutsch als Zweitsprache-Lerner:innen stellen einerseits oft eine unlösbare organisatorische Aufgabe dar, andererseits verunsichern sie Kinder und Jugendliche durch ihre segregierende Wirkung, die somit keiner Klassengemeinschaft angehören. Diese Masterarbeit zeigt daher auf, dass es für alle Beteiligten vorteilhaft ist, Sprach- und Fachunterricht zu verknüpfen. Der Deutschunterricht hat die Aufgabe, eine Grundlage für die Entwicklung sprachlicher Kompetenzen zu schaffen – jedes Fach muss jedoch auch seine eigene Fachsprache vermitteln, die nur im Fach selbst Gegenstand des Lernens sein kann. Für Schüler:innen, die diese fachspezifischen, bildungssprachlichen Handlungsmuster nicht aus ihrer Lebenswelt kennen, besteht Unterstützungsbedarf. Diese Masterarbeit hat daher nach Unterstützungsmaßnahmen jenseits der vom Bundesministerium vorgestellten Modelle gesucht – und ist in den Konzepten der "Durchgängigen Sprachbildung" und der "Sprachbewussten Unterrichtsplanung" fündig geworden. Die Arbeit gliedert sich in einen theoretischen und einen empirischen Teil. In der theoretischen Kontextualisierung wird der aktuelle Stand der Wissenschaft dargestellt. Der empirische Teil beantwortet die Forschungsfrage: Inwiefern können Elemente aus dem Fachunterricht einer österreichischen HTBLUVA im Sinne einer sprachbewussten Unterrichtsplanung für ein Erlernen bildungssprachlicher Register hilfreich sein? Zur Beantwortung der Forschungsfrage wurden im Rahmen einer Fallstudie die sprachlichen Schwierigkeiten der Schüler:innen einer Elektrotechnikklasse an einer HTBLUVA in Österreich analysiert. Anschließend wurde für alle SchülerInnen eine Sprachstandsdiagnose durchgeführt. In Anlehnung an das Konzept des Sprachsensiblen Unterrichts wurde im Anschluss ein Förderkonzept geplant, das die Schüler:innen bei ihren (bildungssprachlichen) Defiziten unterstützen soll. Dieses Konzept wurde so konzipiert, dass es problemlos auf andere fachspezifische Unterrichtselemente übertragen werden kann.
Observation of orbiting resonances in He(3S1) + NH3 Penning ionization
Creators: name: Jankunas, Justin
name: Jachymski, Krzysztof
name: Hapka, Michal
name: Osterwalder, Andreas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic Physics (physics.atom-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Resonances are among the clearest quantum mechanical signatures of scattering processes. Previously, shape resonances and Feshbach resonances have been observed in inelastic and reactive collisions involving atoms or diatomic molecules. Structure in the integral cross section has been observed in a handful of elastic collisions involving polyatomic molecules. The present paper presents the observation of shape resonances in the reactive scattering of a polyatomic molecule, NH3. A merged-beam study of the gas phase He((3)S1) + NH3 Penning ionization reaction dynamics is described in the collision energy range 3.3 $μ$eV < E$_{coll}$ < 10 meV. In this energy range, the reaction rate is governed by long-range attraction. Peaks in the integral cross section are observed at collision energies of 1.8 meV and 7.3 meV and are assigned to $\ell = 15,16$ and $\ell = 20,21$ partial wave resonances, respectively. The experimental results are well reproduced by theoretical calculations with the short-range reaction probability P$_{sr}$ = 0.035. No clear signature of the orbiting resonances is visible in the branching ratio between NH3(+) and NH2(+) formation.
Education for Social Change. Peru 1972-1975
Creators: name: Oliart, Patricia
Publisher: name: JSSE - Journal of Social Science Education
Year: 2013

description: The education reform implemented by the military regime of Juan Velasco (1968-1975) in Peru was the result of the alliance between a progressive branch of the armed forces and a group of cosmopolitan intellectuals influenced by radical pedagogy from the 60s and 70s, but also loyal to a long progressive tradition in education from Peru and Latin America. Analysis of this truncated project brings to light critical debates about politics and ideology in education and resonates with contemporary discussions about development and post development studies. The contemporary significance of the 1972 education reform is that its legacy, embodied in conspicuous members of the education community, played a role in the application of the neoliberal reforms in education in Peru in the 1990s, and helped envision a consensual educational project for the future.
description: JSSE - Journal of Social Science Education, 3-2013 Education and Citizenship in Latin America
The Quantum Hall Effects: Philosophical Approach
Creators: name: Lederer, Pascal
Publisher: name: arXiv
Year: 2014
Subjects: subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: The Quantum Hall Effects offer a rich variety of theoretical and experimental advances. They provide interesting insights on such topics as complementarity, gauge invariance, strong interactions, emergence of new theoretical concepts. This paper focuses on some related philosophical questions. Hacking's views on Scientific Realism, Chalmers' on Non Figurative Realism are discussed. It is argued that the difficulties with those versions of realism may be resolved within a dialectical materialist approach. The latter is shown to provide a rational approach to the phenomena, the theory and the ontology of the Quantum Hall Effects.
description: 43 pages, 3 figures, revised version, accepted for publication in Studies in History and Philosophy of Modern Physics
Non equilibrium dynamics of an optomechanical Dicke model
Creators: name: Debnath, Kamanasish
name: Bhattacherjee, Aranya B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Motivated by the experimental realization of Dicke model in optical cavities, we model an optomechanical system consisting of a two level BEC with transverse pumping. We investigate the transition from normal and inverted state to the superradiant phase through a detailed study of the phase portrait of the system. The rich phase portrait generated by analytic arguments displays two types of superradiant phases, regions of coexistence and some portion determining the persistent oscillations. We study the time evolution of the system from any phase and discuss the role of mirror frequency in achieving the attractors and stable values. Further, we add an external mechanical pump to the mirror which is capable of changing the mirror frequency and study the impact of the pump on the phase portraits and the dynamics of the system. We find the external mirror frequency changing the phase portraits and even shifting the critical transition point, thereby predicting a system with controllable phase transition.
Interview with Vera Maria Ferrão Candau
Creators: name: Bannell, Ralph Ings
Publisher: name: JSSE - Journal of Social Science Education
Year: 2013

description: This article is an interview on human rights education with one of Latin Americás most prominent human rights educators, Professor Vera Candau. The interview covers her trajectory in human rights education, the relationship between human rights education, liberalism and socialism, the question of interculturality and the role of human rights education inschools and informal educational contexts.
description: JSSE - Journal of Social Science Education, 3-2013 Education and Citizenship in Latin America
Exploring the Keys to Citizen Formation in Teacher's Discourse: Implications of Teaching Citizenship in the Araucanía Region, Chile
Creators: name: León, Abelardo
Publisher: name: JSSE - Journal of Social Science Education
Year: 2013

description: The present article addresses the main points observed during a series of interviews carried out between 2008 and 2009 with teachers of the 8th grade subject, Citizen Formation. All of the interviewees come from private and municipal educational institutions from the Araucanía region in Chile. The study revolved around two initial questions: how do teachers of the ninth region of the Araucanía deal with the notion of citizenship? And, in what way do they make sense of this concept? In this way we look to identify the elements in the discourse that form the notion of citizenship starting with the beliefs and interpretations given by the interviewees. In the results we can observe a tension between the concept the teachers have of themselves and their social role and, on the other hand, the way they should conceive the subject as a tool of the institutional character of the state.
description: JSSE - Journal of Social Science Education, 3-2013 Education and Citizenship in Latin America
Citizenship and Transformative Human Rights Education: Surveys as ‘Praxis’ in the São Paulo Periphery
Creators: name: Tsolakis, Marika
Publisher: name: JSSE - Journal of Social Science Education
Year: 2013

description: In Latin America, citizenship is often viewed as a struggle for rights and has often been won through ground-up movements. For this reason, a transformative human rights education framework is useful for considering the roles and processes of citizenship education in Latin America. Using a case study of a programme that teaches about the right to education to disadvantaged youth from the São Paulo periphery, this article also highlights the use of surveys as a Frereian pedagogical tool in transformative human rights and citizenship education.
description: JSSE - Journal of Social Science Education, 3-2013 Education and Citizenship in Latin America
Exploring the Limits and Potentials of Youth Participation in Public Policy at the State and Municipal Level: A Study in the State of Acre, Brazil
Creators: name: Queiroz, Lucicleia Barreto
name: Menezes, Isabel
Publisher: name: JSSE - Journal of Social Science Education
Year: 2013

description: In the last decade, youth entered the agenda of public policies in Brazil, recognizing not only the problems that affect young people, but also the need for a proactive perspective that views youngsters as playing a central role in the design and implementation of policy. This is a tendency that is also noticeable in other countries, and there is clearly a “vogue of youth participation” (Bessant 2004, 401) in public policy across the world. Research in the field tends to show that these experiences can be effective in promoting young people civic and political knowledge, attitudes and competences and therefore can become a strategy of non-formal citizenship education. However, there are critiques that participation in these initiatives risks pamphleteering and tokenism. The goal of this paper is to enter this debate by considering the Brazilian experience in the State of Acre and to explore whether and how opportunities for participation that youth public policies appear to stimulate are, in fact, perceived and experienced by groups involved in the process, from decision-makers to young people. Results show that, as in other countries, policies are still not living up to expectations and much more systematic work is necessary to guarantee that participation in youth policies is, in fact, a relevant citizenship experience.
description: JSSE - Journal of Social Science Education, 3-2013 Education and Citizenship in Latin America
Nonminimally coupled scalar field in teleparallel gravity: boson stars
Creators: name: Horvat, Dubravko
name: Ilijic, Sasa
name: Kirin, Anamarija
name: Narancic, Zoran
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study the nonminimally coupled complex scalar field within the framework of teleparallel gravity. Coupling of the field nonminimally to the torsion scalar destroys the Lorentz invariance of the theory in the sense that the resulting equations of motion depend on the choice of a tetrad. For the assumed static spherically symmetric spacetime, we find a tetrad which leads to a self-consistent set of equations, and we construct the self-gravitating configurations of the scalar field---boson stars. The resulting configurations develop anisotropic principal pressures and satisfy the dominant energy condition. An interesting property of the configurations obtained with sufficiently large field-to-torsion coupling constant is the outwardly increasing energy density, followed by an abrupt drop towards the usual asymptotic tail. This feature is not present in the boson stars with the field minimally or nonminimally coupled to the curvature scalar, and therefore appears to be a torsion--only effect.
description: LaTeX, 14 pages, 3 figures, v3: some points clarified, refs added, matches published version
Converging with World Trends: The Emergence of the Cosmopolitan Citizen in Post-Socialist Romanian Citizenship Education
Creators: name: Szakács, Simona
Publisher: name: JSSE - Journal of Social Science Education
Year: 2013

description: Based on thematic content analysis of textbooks, curricula, and an overview of educational legislation after the 1989 change of political regime in Romania, this paper presents empirical evidence to argue that that postsocialist citizenship education displays surprising similarities with converging post-war changes in the concept of the ‘good citizen’. The findings suggest a complex picture of change combining liberal, communitarian and cosmopolitan renditions of the new citizen, all having a common thread: the shift towards a post-national ethos delinking the citizen from the exclusive purchase of national belonging and decoupling citizen action from the absolute duty to the patria. Such significant changes are often overlooked due to the dominant focus on the failures to comply with an idealized Western liberal model. However, they invite us to reconsider current understandings of both the pitfalls and the opportunities of post-socialist citizenship education by considering them from a different angle: that of wider socio-cultural change that is gradually being institutionalised at the world level.
description: JSSE - Journal of Social Science Education, 4-2013 Citizenship and Civic Education in Postcommunist Countries
title: Mehr als nur Bilder mit Worten
Creators: name: Meisel, Laura Margherita
Year: 2022

description: Die vorliegende Masterarbeit untersucht wie der Klimawandel in Klimawandel-Comics dargestellt wird. Zielgruppengerechte Klimawandel-Kommunikation ist ein wichtiger Bestandteil der Einbindung der Öffentlichkeit (public engagement) in die Bekämpfung des Klimawandels. Dieser ist jedoch aufgrund seiner Komplexität schwer zu vermitteln. Comics könnten eine mögliches Darstellungsformat sein, um eine Brücke zwischen der Abstraktheit des Klimawandels und dem Alltag einer bestimmten Zielgruppe zu schlagen. Da noch kaum Literatur zu Klimawandel-Comics existiert wurden Erkenntnisse aus der zielgruppengerechten Kommunikation, dem Forschungsstand zu Sachcomics und Elemente der Comic-Forschung miteinander verbunden, um drei Klimawandel-Comics zu analysieren. Die Analyse-Ergebnisse zeigen, dass das Potential von Klimawandel-Comics für die Klimawandel-Kommunikation in der Möglichkeit der zielgruppendifferenzierten Darstellungen des Klimawandels liegt. Problemfelder liegen in der Darstellung wissenschaftlicher Unsicherheit, fiktionaler Elemente und der Verantwortung für den Klimawandel.
description: This master thesis examines how climate change is portrayed in climate change comics. Target group-orientated climate change communication plays a crucial role in public engagement with climate change. However, due to its complexity, climate change is difficult to communicate. The potential of comics in climate change communication lies in the possibility of making abstract concepts accessible for everyday life. Since only very little research on climate change comics exists, findings from research on target group oriented climate change communication, on educational comics and comic research was combined to analyse three climate change comics. The results show that the potential of climate change comics consists of the possibility of expressing a differentiated view on climate change tailored to a wide range of target groups. The challenges lie in the representation of scientific uncertainty, fictional elements, and the responsibility for climate change.
title: Und meine Lehrer meinten, ich wäre es nicht wert, weiterzumachen
Creators: name: Kilic-Yilanci, Belkis
Year: 2022

description: Die vorliegende Arbeit gibt einen Überblick über die schulische Situation und Herausforderungen von Kindern und Jugendlichen mit Migrationshintergrund in Österreich. Im theoretischen Teil der Arbeit werden Faktoren beschrieben, welche für den Bildungserfolg bzw. -misserfolg dieser Schüler/innen verantwortlich sein können. Durch die Ausarbeitung der Literatur leiteten sich schließlich drei zentrale Kategorien ab, die die schulische Bildungslaufbahn von Schüler/innen mit Migrationshintergrund beeinflussen: die institutionelle, sprachliche und ethnische Diskriminierung, (mangelnde) Sprachkenntnisse sowie die Funktion des Elternhauses. Das Ziel dieser Arbeit war es herauszufinden, welche Erfahrungen Personen mit Migrationshintergrund und einer anderen Erstsprache als Deutsch im österreichischen Schulwesen machen und inwiefern ihr Migrationshintergrund und ihre Deutschsprachkenntnisse ihren Bildungserfolg beeinflussen. Im zweiten Teil dieser Arbeit wird die methodische Herangehensweise beschrieben. Im Rahmen einer qualitativen Forschung wurden semi-strukturierte Leitfadeninterviews mit zwölf Personen mit Migrationshintergrund und einer anderen Erstsprache als Deutsch durchgeführt. Dabei stand folgende Forschungsfrage im Fokus: Welche subjektiven Erfahrungen werden im Rahmen mit Migrationshintergrund und Bildungserfolg gemacht und welche Rolle nimmt die deutsche Sprache darin ein? Die Interviewteilnehmer/innen wurden zu ihren Erfahrungen in Bezug auf Diskriminierung und Probleme im schulischen Kontext sowie zur Haltung ihrer Eltern bei schulischen Konflikten befragt. Die Ergebnisse zeigten deutlich, dass der Bildungserfolg von Schüler/innen mit Migrationshintergrund von der Rolle ihres Elternhauses im schulischen Kontext stark abhängig ist. Das Interesse der Eltern mit Migrationshintergrund am schulischen Geschehen und ihre adäquate Unterstützung in schulischen Belangen ist für den Bildungserfolg ihrer Kinder von großer Bedeutung. Dementsprechend ist die Rolle und Einstellung von den Eltern entscheidend dafür, welche Erfahrungen Schüler/innen mit Migrationshintergrund im österreichischen Schulwesen machen und wie sich daraus ihre Bildungslaufbahn formt.
CTC Meeting, Educational models, pupil, student, teacher, 2017
Creators: name: Walkowiak, Radoslaw
Publisher: name: figshare
Year: 2020
Subjects: subject: Developmental and Educational Psychology
subject: 130306 Educational Technology and Computing
subject: FOS: Educational sciences
subject: 130304 Educational Administration, Management and Leadership

description: Marek Nowicki, Anna Mitura, Peter Danko, Radosław Walkowiak; Educational models, pupil, student, teacher. CTC Meeting, Bratislava, Slovakia, 2017
Spin squeezing by tensor twisting and Lipkin-Meshkov-Glick dynamics in a toroidal Bose-Einstein condensate with spatially modulated nonlinearity
Creators: name: Opatrný, Tomáš
name: Kolář, Michal
name: Das, Kunal K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme for spin-squeezing in the orbital motion of a Bose-Einstein condensate (BEC) in a toroidal trap. A circular lattice couples two counter-rotating modes and squeezing is generated by the nonlinear interaction spatially modulated at half the lattice period. By varying the amplitude and phase of the modulation, various cases of the twisting tensor can be directly realized, leading to different squeezing regimes. These include one-axis twisting and the two-axis counter-twisting which are often discussed as the most important paradigms for spin squeezing. Our scheme naturally realizes the Lipkin-Meshkov-Glick model with the freedom to vary all its parameters simultaneously.
description: 9 pages, 6 figures, to appear in PRA
Educational models, pupil, student, teacher
Creators: name: Walkowiak, Radoslaw
Publisher: name: figshare
Year: 2020
Subjects: subject: Developmental and Educational Psychology
subject: 130306 Educational Technology and Computing
subject: FOS: Educational sciences
subject: 130304 Educational Administration, Management and Leadership

description: Marek Nowicki, Anna Mitura, Peter Danko, Radosław Walkowiak; Educational models, pupil, student, teacher. CTC Meeting, Bratislava, Slovakia, 2017
Notes on Alpha Stream Optimization
Creators: name: Kakushadze, Zura
Publisher: name: arXiv
Year: 2014
Subjects: subject: Portfolio Management (q-fin.PM)
subject: Risk Management (q-fin.RM)
subject: FOS: Economics and business

description: In these notes we discuss investment allocation to multiple alpha streams traded on the same execution platform, including when trades are crossed internally resulting in turnover reduction. We discuss approaches to alpha weight optimization where one maximizes P&L subject to bounds on volatility (or Sharpe ratio). The presence of negative alpha weights, which are allowed when alpha streams are traded on the same execution platform, complicates the optimization problem. By using factor model approach to alpha covariance matrix, the original optimization problem can be viewed as a 1-dimensional root searching problem plus an optimization problem that requires a finite number of iterations. We discuss this approach without costs and with linear costs, and also with nonlinear costs in a certain approximation, which makes the allocation problem tractable without forgoing nonlinear portfolio capacity bound effects.
description: 42 pages; clarifying remarks added, minor misprints corrected; to appear in The Journal of Investment Strategies
title: Social connection program evaluation toolkit
Creators: name: De Cotta, Tracy
name: Verhagen, Jayme
name: Farmer, Jane
name: Karg, Adam
name: Sivasubramaniam, Diane
name: Savic, Milovan
name: Rowe, Callan
Publisher: name: Swinburne University of Technology
Year: 2024

description: A framework to help measure the program quality and impacts of programs that seek to generate social connection.
The Higgs-like boson spin from the center-edge asymmetry in the diphoton channel
Creators: name: Osland, P.
name: Pankov, A. A.
name: Tsytrinov, A. V.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the discrimination of the 125 GeV spin-parity 0^+ Higgs-like boson observed at the LHC, decaying into two photons, H\toγγ, against the hypothesis of a minimally coupled J^{P}=2^+ narrow diphoton resonance with the same mass and giving the same total number of signal events under the peak. We apply, as the basic observable of the analysis, the center-edge asymmetry A_{CE} of the cosine of the polar angle of the produced photons in the diphoton rest frame to distinguish between the tested spin hypotheses. We show that the center-edge asymmetry A_{CE} should provide strong discrimination between the possibilities of spin-0 and spin-2 with graviton-like couplings, depending on the fraction of q\bar{q} production of the spin-2 signal, reaching a {CL}_s<10^{-6} for f_{qq}=0. Indeed, the A_{CE} has the potential to do better than existing analyses for f_{qq}<0.4.
description: 11 pages, 5 figures. v2: version to appear in EPJ C
Supplemental Material for Chen et al., 2020
Creators: name: Zhongsheng Chen
name: Boehnke, Michael
name: Xiaoquan Wen
name: Bhramar Mukherjee
Publisher: name: GSA Journals
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Table S1-S13Figure S1