cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Modeling aircraft-based detections of 511 keV background enhancements observed in thunderstorms.
Creators: name: Sarria, D.
Publisher: name: Zenodo
Year: 2018
Subjects: aircraft electron positron 511 keV annihilation relativistic runaway electron avalanche neutron gamma ray glow static discharge lightning thunderstorm

description: Poster presented during the AGU 2017 Fall Meeting, (Wednesday, 13 December 2017) In January 2016, an A340 aircraft equipped with a dedicated in-flight lightning detection system ILDAS (http://ildas.nlr.nl) flew through thunderstorms at 12 km altitude over Northern Australia. ILDAS includes two high performance LaBr3 based gamma-ray detectors. It detected strong enhancements of the 511 keV background line (each lasted for 0.5 - 1.0 s and total duration over 15 s) in correlation with intensive electrical activity. Such events seem quite similar to the 2009 "Positron clouds" observations of the Airborne Detector for Energetic Lightning Emissions (ADELE) reported in [Dwyer et al. 2015]. Using the GEANT4 toolkit and a model of the aircraft that includes the gamma-ray detectors, we probe different hypotheses to try to explain the observed 511 keV enhancement : Positron clouds of several sizes RREA, with a favorable geometrical configuration Neutron induced radioactivity Conclusions : The 511 keV enhancements are associated with static discharges from the aircraft. The observed spectrum below 511 keV is consistent with almost only positron annihilation, but cannot reproduce the higher energy part. Annihilation area is likely of the size of the aircraft or close Combination of photons from Relativistic Runaway Electron Avalanche (RREA) + positrons may work. With RREA alone and a favorable geometrical configuration: Not more than ~ 20 % positron to photon ratio Even this requires high Electric fields (1.4 times RREA threshold) Neutron induced radioactivity may explain some of the observed features, but setting up the models correctly is challenging (3 models -> 3 different results)
description: {"references": ["Dwyer, J. R., Smith, D. M., Hazelton, B. J., Grefenstette, B. W., Kelley, N. A., Lowell, A. W., et al. (2015). Positron clouds within thunderstorms. Journal of Plasma Physics, 81(04), 475810405.", "Allison, J., K. Amako, et al. (2006), Geant4 developments and applications, IEEE Transactions on Nuclear Science, 53, 270\u2013278"]}
Studierbarkeit. Wesen und Bedeutung für die Akteure im berufsbegleitenden Fernstudium
Creators: name: Czanderle, Birgit
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: Studierbarkeit – das (un)bekannte Wesen – Ist das wirklich so? Ist der Begriff der Studierbarkeit tatsächlich (un)bekannt? Wie lässt sich dieser Begriff im Bereich der wissendschaftlichen Weiterbildung verstehen und welchen Einfluss hat Studierbarkeit auf die Gestaltung der Angebote im Bereich der wissenschaftlichen Weiterbildung im Kontext von Fernstudium? Gerade die Zielgruppe der beruflich begleitend Studierenden im Fernstudium ist eine besondere Gruppe im Bereich der nicht-traditionellen Studierenden und damit der wissenschaftlichen Weiterbildung. Welchen Einfluss hat diese besondere Zielgruppe auf Gestaltungsmöglichkeiten der Studierbarkeit und welche Handlungsempfehlungen lassen sich für Anbieter, Lehrende und Lernende ableiten? Ein Forschungsprojekt an der Wilhelm Büchner Hochschule befasst sich mit diesen Fragen, um Studierbarkeit nicht mehr nur als Begriff sondern als Qualitätskriterium im berufsbegleiten den Fernstudium zu etablieren.
description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
Quasinormal Modes of Non-Linearly Charged Black Holes surrounded by a Cloud of Strings in Rastall Gravity
Creators: name: Gogoi, Dhruba Jyoti
name: Karmakar, Ronit
name: Goswami, Umananda Dev
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain the black hole solution for the Ayón - Beato - García (ABG) type black hole surrounded by a cloud of strings in Rastall gravity and calculate the scalar quasinormal modes of it for a massless scalar field. To have a better visualization of the results, we also introduce a new non-linear electrodynamic source and obtain a black hole solution surrounded by a cloud of strings in the Rastall gravity. We see that the quasinormal modes are affected by the type of non-linear electrodynamic sources in case of higher magnitudes of charge $q$. With increase in the magnitude of charge $q$, gravitational waves decay rapidly for the new black hole solution, while for the ABG black hole, the decay rate increases initially and finally starts to decrease near to $q=1$. We also study the impact of the cloud of strings and other model parameters, including the Rastall parameter on the quasinormal modes for both of the black holes. The gravitational waves decay slowly with increase in the cloud of strings parameter for both of the black holes. Dependency of quasinormal modes on the Rastall parameter is different from a surrounding dark energy field and the decay of gravitational waves may be slow or rapid depending on the value of this parameter.
description: 24 pages and 25 figures
On the neighbour sum distinguishing index of planar graphs
Creators: name: Bonamy, Marthe
name: Przybyło, Jakub
Publisher: name: arXiv
Year: 2014
Subjects: subject: Discrete Mathematics (cs.DM)
subject: Combinatorics (math.CO)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics
subject: 05C78, 05C15

description: Let $c$ be a proper edge colouring of a graph $G=(V,E)$ with integers $1,2,\ldots,k$. Then $k\geq Δ(G)$, while by Vizing's theorem, no more than $k=Δ(G)+1$ is necessary for constructing such $c$. On the course of investigating irregularities in graphs, it has been moreover conjectured that only slightly larger $k$, i.e., $k=Δ(G)+2$ enables enforcing additional strong feature of $c$, namely that it attributes distinct sums of incident colours to adjacent vertices in $G$ if only this graph has no isolated edges and is not isomorphic to $C_5$. We prove the conjecture is valid for planar graphs of sufficiently large maximum degree. In fact even stronger statement holds, as the necessary number of colours stemming from the result of Vizing is proved to be sufficient for this family of graphs. Specifically, our main result states that every planar graph $G$ of maximum degree at least $28$ which contains no isolated edges admits a proper edge colouring $c:E\to\{1,2,\ldots,Δ(G)+1\}$ such that $\sum_{e\ni u}c(e)\neq \sum_{e\ni v}c(e)$ for every edge $uv$ of $G$.
description: 22 pages
6d Conformal Matter
Creators: name: Del Zotto, Michele
name: Heckman, Jonathan J.
name: Tomasiello, Alessandro
name: Vafa, Cumrun
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A single M5-brane probing G, an ADE-type singularity, leads to a system which has G x G global symmetry and can be viewed as "bifundamental" (G,G) matter. For the A_N series, this leads to the usual notion of bifundamental matter. For the other cases it corresponds to a strongly interacting (1,0) superconformal system in six dimensions. Similarly, an ADE singularity intersecting the Horava-Witten wall leads to a superconformal matter system with E_8 x G global symmetry. Using the F-theory realization of these theories, we elucidate the Coulomb/tensor branch of (G,G') conformal matter. This leads to the notion of fractionalization of an M5-brane on an ADE singularity as well as fractionalization of the intersection point of the ADE singularity with the Horava-Witten wall. Partial Higgsing of these theories leads to new 6d SCFTs in the infrared, which we also characterize. This generalizes the class of (1,0) theories which can be perturbatively realized by suspended branes in IIA string theory. By reducing on a circle, we arrive at novel duals for 5d affine quiver theories. Introducing many M5-branes leads to large N gravity duals.
description: v3: 63 pages, 28 figures, references and clarifications added
Betriebliche Unterstützung von beruflich qualifizierten Beschäftigten bei berufsbegleitenden Bachelorprogrammen. Ergebnisse einer qualitativen Untersuchung
Creators: name: Wolf, Sandra
name: Dellit, Andrea
name: Danz, Eleonore
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: Hochschulen bieten vermehrt berufsbegleitende Bachelorangebote für beruflich Qualifizierte an. Da diese Zielgruppe in der Regel berufstätig ist, kann von einem Einfluss der wahrgenommenen Unterstützung durch die Arbeitgeberin bzw. den Arbeitgeber auf die Teilnahmeentscheidung ausgegangen werden. Die Unterstützungsbereitschaft setzt wiederum einen unternehmensseitig vorhandenen Bedarf an entsprechenden Qualifikationen voraus. In einer qualitativen Untersuchung, die im Rahmen des BMBF-Projektes zur Einrichtung von berufsbegleitenden Bachelorstudiengängen für beruflich Qualifizierte und Berufstätige an der Hochschule Schmalkalden durchgeführt worden ist, wurde dieser Bedarf analysiert. Ferner wurden von kleinen und mittelständischen Unternehmen nachgefragte Themen, Anforderungen an berufsbegleitende Studiengänge sowie Formen der Unterstützung ermittelt.
description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
Inflation of small true vacuum bubble by quantization of Einstein-Hilbert action
Creators: name: He, Dongshan
name: Cai, Qing-yu
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study the quantization of the Einstein-Hilbert action for a small true vacuum bubble without matter or scalar field. The quantization of action induces an extra term of potential called quantum potential in Hamilton-Jacobi equation, which gives expanding solutions including the exponential expansion solutions of the scalar factor $a$ for the bubble. We show that exponential expansion of the bubble continues with a short period (about a Planck time $t_p$), no matter whether the bubble is closed, flat or open. The exponential expansion ends spontaneously when the bubble becomes large, i.e., the scalar factor $a$ of the bubble approaches a Planck length $l_p$. We show that it is quantum potential of the small true vacuum bubble that plays the role of the scalar field potential suggested in the slow-roll inflation model. With the picture of quantum tunneling, we calculate particle creation rate during inflation, which shows that particles created by inflation have the capability of reheating the universe.
description: Final version
УГОЛОВНО-ПРАВОВАЯ ХАРАКТЕРИСТИКА ТЕРРОРИСТИЧЕСКОЙ ДЕЯТЕЛЬНОСТИ
Creators: name: Игорь Игоревич Крапива
Publisher: name: Закон и право
Year: 2020
Subjects: терроризм
террористическая деятельность преступления террористического характера.

description: В статье автор приходит к выводу, что в различных законодательных актах закрепляется различное содержание понятия «террористическая деятельность». Уголовно-правовая характеристика террористической деятельности закреплена в УК РФ. Отличительным признаком преступлений террористического характера является совершение насильственных преступлений с целью воздействия на принятие решения органами власти, как правило, связанное с устрашением населения.
Galactic Center Gamma-Ray Excess through a Dark Shower
Creators: name: Freytsis, Marat
name: Robinson, Dean J.
name: Tsai, Yuhsin
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The reported excess of $γ$-rays, emitted from an extended region around the galactic center, has a distribution and rate suggestive of an origin in dark matter (DM) annihilations. The conventional annihilation channels into standard model (SM) $b$ quarks or $τ$ leptons may, however, be in tension with various experimental constraints on antiproton and positron fluxes. We present a framework that is free from such constraints. The key idea is that the mediators between the dark matter and the SM are themselves part of a strongly coupled sector: a hidden valley. In this scenario, the dark matter particles annihilate only into hidden quarks that subsequently shower and hadronize. Hidden quark effective couplings to SM hypercharge allow the lightest hidden bound states to subsequently decay into SM photons, producing the observed photon energy spectrum. Associated production of SM fermions is, in contrast, suppressed by electroweak, loop or helicity effects. We find that, generically, $\sim$ 10 GeV DM and a confinement scale $\sim$ 1 GeV provide a good fit to the observed spectrum. An $SU(2)$ hidden confining group is preferred over $SU(3)$ or higher rank gauge groups, up to uncertainties in the extraction of the astrophysical background. An explicit realization of this framework is also presented, and its phenomenology is discussed in detail, along with pertinent cosmological, astrophysical and collider bounds. This framework may be probed by model-independent searches, including future beam-dump experiments.
description: 9 pages, 4 figures, v2: references added, description of simulations clarified, PRD version
СТАТИСТИЧЕСКАЯ ХАРАКТЕРИСТИКА НАЛОГОВЫХ ПРЕСТУПЛЕНИЙ
Creators: name: Анатолий Николаевич Панкратьев
Publisher: name: Закон и право
Year: 2020
Subjects: налоговая преступность
налоговые мошенничества
уголовная статистика преступлений в сфере налоговой преступности
предупреждение налоговых преступлений

description: В статье рассматриваются актуальные вопросы, связанные c определением перечня преступных деяний, относимых к налоговым преступлениям. Проводится анализ сведений федеральных и ведомственных форм статистического наблюдения. На основании этого дается статистическая характеристика налоговых преступлений за 2016 — 2019 годы.
Supersolid with nontrivial topological spin textures in spin-orbit-coupled Bose gases
Creators: name: Han, Wei
name: Juzeliūnas, Gediminas
name: Zhang, Wei
name: Liu, Wu-Ming
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Supersolid is a long-sought exotic phase of matter, which is characterized by the coexistence of a diagonal long-range order of solid and an off-diagonal long-range order of superfluid. Possible candidates to realize such a phase have been previously considered, including hard-core bosons with long-range interaction and soft-core bosons. Here we demonstrate that an ultracold atomic condensate of hard-core bosons with contact interaction can establish a supersolid phase when simultaneously subjected to spin-orbit coupling and a spin-dependent periodic potential. This supersolid phase is accompanied by topologically nontrivial spin textures, and is signaled by the separation of momentum distribution peaks, which can be detected via time-of-flight measurements. We also discuss possibilities to produce and observe the supersolid phase for realistic experimental situations.
КРИМИНАЛИСТИКА В СИСТЕМЕ ЮРИДИЧЕСКИХ НАУК
Creators: name: Салимат Тажудиновна Амирханова
Publisher: name: Закон и право
Year: 2020
Subjects: криминалистика
наука и учебная дисциплина
правовая природа
достижения иных наук
интеграция и дифференциация знаний

description: В статье показаны особенности науки криминалистики и ее предмета в историческом развитии, ее роль и значение при изменении качественных показателей преступности, необходимость данной дисциплины в юридическом вузе и криминалистических знаний для будущих юристов. Рассматриваются тенденции развития системы криминалистики, анализируются предложения ученых по структуризации криминалистики. Предложено авторское видение совершенствования системы криминалистики.
АКТУАЛЬНЫЕ ПРОБЛЕМЫ ВЫЯВЛЕНИЯ НЕЗАКОННОГО ПРЕДПРИНИМАТЕЛЬСТВА В СЕТИ ИНТЕРНЕТ СОТРУДНИКАМИ ОРГАНОВ ВНУТРЕННИХ ДЕЛ
Creators: name: Леся Юрьевна Панасенко
Publisher: name: Закон и право
Year: 2020
Subjects: незаконное предпринимательство в сети Интернет
проблемы выявления незаконного предпринимательства
незаконная предпринимательская деятельность
экономические преступления.

description: В статье автор рассматривает проблемы, связанные с выявлением незаконной предпринимательской деятельности в сети Интернет. Изучение судебной практики, зарубежный опыт регулирования предпринимательской деятельности и собственный практический опыт дают возможность автору провести анализ причин сложности выявления преступлений данной категории и предложить пути повышения эффективности выявления незаконной предпринимательской деятельности в сети Интернет.
Zielgruppenorientierung in der wissenschaftlichen Weiterbildung. Das Beispiel des Fernstudiengangs „Schulmanagement“ des Distance and Independent Studies Center (DISC) der Technischen Universität Kaiserslautern
Creators: name: Glade, Eva-Maria
name: Neureuther, Jessica
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: In diesem Artikel wird die Entwicklung und Konzeption eines Angebots zur wissenschaftlichen Weiterbildung thematisiert. Dabei wird das Hauptaugenmerk auf die Nachfrage- und auf die Zielgruppenorientierung in der wissenschaftlichen Weiterbildung gelegt. Dazu werden Herausforderungen sowie Spannungsfelder aufgezeigt, die bei einer Nachfrageorientierung innerhalb einer Angebotskonzeption entstehen können. Anschließend sollen diese an einem Praxisbeispiel innerhalb der wissenschaftlichen Weiterbildung an der Technischen Universität (TU) Kaiserslautern vertieft und diskutiert werden. Ein Ausblick für die weitere Diskussion soll den Artikel schließlich abrunden.
description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
Quantum Dot-Based Parametric Amplifiers
Creators: name: Cochrane, Laurence
name: Lundberg, Theodor
name: Ibberson, David J.
name: Ibberson, Lisa
name: Hutin, Louis
name: Bertrand, Benoit
name: Stelmashenko, Nadia
name: Robinson, Jason W. A.
name: Vinet, Maud
name: Seshia, Ashwin A.
name: Gonzalez-Zalba, M. Fernando
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Applied Physics (physics.app-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Josephson parametric amplifiers (JPAs) approaching quantum-limited noise performance have been instrumental in enabling high fidelity readout of superconducting qubits and, recently, semiconductor quantum dots (QDs). We propose that the quantum capacitance arising in electronic two-level systems (the dual of Josephson inductance) can provide an alternative dissipation-less non-linear element for parametric amplification. We experimentally demonstrate phase-sensitive parametric amplification using a QD-reservoir electron transition in a CMOS nanowire split-gate transistor embedded in a 1.8~GHz superconducting lumped-element microwave cavity, achieving parametric gains of -3 to +3 dB, limited by Sisyphus dissipation. Using a semi-classical model, we find an optimised design within current technological capabilities could achieve gains and bandwidths comparable to JPAs, while providing complementary specifications with respect to integration in semiconductor platforms or operation at higher magnetic fields.
description: 7 pages, 4 figures
Magnetic susceptibility and magnetization properties of asymmetric nuclear matter under a strong magnetic field
Creators: name: Rabhi, A.
name: Pérez-García, M. A.
name: Providência, C.
name: Vidaña, I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We study the effect of a strong magnetic field on the proton and neutron spin polarization and magnetic susceptibility of asymmetric nuclear matter within a relativistic mean-field approach. It is shown that magnetic fields $B \sim 10^{16} - 10^{17}$ G have already noticeable effects on the range of densities of interest for the study of the crust of a neutron star. Although the proton susceptibility is larger for weaker fields, the neutron susceptibility becomes of the same order or even larger for small proton fractions and subsaturation densities for $B > 10^{16}$ G. We expect that neutron superfluidity in the crust will be affected by the presence of magnetic fields.
description: 16 pages, 10 figures, revised and accepted version for publication in Physical Review C
ИСТОРИКО-ПРАВОВОМ АСПЕКТ ПРЕБЫВАНИЯ ИНОСТРАННЫХ ГРАЖДАН НА ТЕРРИТОРИИ РОССИЙСКОМ ФЕДЕРАЦИИ
Creators: name: Юлия Николаевна Рыжакова
Publisher: name: Закон и право
Year: 2020
Subjects: иностранный гражданин
иностранец
правовое положение
пребывание
категории иностранных граждан

description: В статье анализируются историко-правовые аспекты пребывания иностранных граждан на территории Российской Федерации. Раскрывается содержание понятия «иностранец» в законодательстве РФ. Рассматриваются категории иностранцев в России.
Aktuelle Veröffentlichungen zum Themenfeld „Hochschule und Weiterbildung“
Creators: name: Dt. Inst. Für Erwachsenenbildung (DIE), Bibliothek
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: Halbjahresauszug - Mitte November 2016 - Ende April 2017
description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
Time Varying Dynamical Star Formation Rate
Creators: name: Lee, Eve J.
name: Chang, Philip
name: Murray, Norman
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present numerical evidence of dynamic star formation in which the accreted stellar mass grows superlinearly with time, roughly as $t^2$. We perform simulations of star formation in self-gravitating hydrodynamic and magneto-hydrodynamic turbulence that is continuously driven. By turning the self-gravity of the gas in the simulations on or off, we demonstrate that self-gravity is the dominant physical effect setting the mass accretion rate at early times before feedback effects take over, contrary to theories of turbulence-regulated star formation. We find that gravitational collapse steepens the density profile around stars, generating the power-law tail on what is otherwise a lognormal density probability distribution function. Furthermore, we find turbulent velocity profiles to flatten inside collapsing regions, altering the size-linewidth relation. This local flattening reflects enhancements of turbulent velocity on small scales, as verified by changes to the velocity power spectra. Our results indicate that gas self-gravity dynamically alters both density and velocity structures in clouds, giving rise to a time-varying star formation rate. We find that a substantial fraction of the gas that forms stars arrives via low density flows, as opposed to accreting through high density filaments.
description: 14 pages, 14 figures, to appear in ApJ. Added purely compressive turbulence driving for FLASH runs
ПРОБЛЕМА ПРАВОВОГО РЕГУЛИРОВАНИЯ САМОЗАНЯТЫХ В ТРУДОВОМ ПРАВЕ
Creators: name: Антон Романович Булима
name: Ахмед Вугарович Рашидов
Publisher: name: Закон и право
Year: 2020
Subjects: самозанятые
трудовое право
работник
индивидуальный предприниматель

description: Проблема правового регулирования самозанятых в трудовом праве является одной из дискуссионных в науке трудового права. В статье исследуется данная проблема. Проводится сравнение с правовым положением работников и индивидуальных предпринимателей. Авторами рассматриваются различные подходы к правовому регулированию указанной проблемы.
Multivariate Quadratic Transformations and the Interpolation Kernel
Creators: name: Rains, Eric M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Analysis and ODEs (math.CA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We prove a number of quadratic transformations of elliptic Selberg integrals (conjectured in an earlier paper of the author), as well as studying in depth the "interpolation kernel", an analytic continuation of the author's elliptic interpolation functions which plays a major role in the proof as well as acting as the kernel for a Fourier transform on certain elliptic double affine Hecke algebras (discussed in a later paper). In the process, we give a number of examples of a new approach to proving elliptic hypergeometric integral identities, by reduction to a Zariski dense subset of a formal neighborhood of the trigonometric limit.
Shilnikov Homoclinic Bifurcation of Mixed-Mode Oscillations
Creators: name: Guckenheimer, John
name: Lizarraga, Ian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics

description: The Koper model is a three-dimensional vector field that was developed to study complex electrochemical oscillations arising in a diffusion process. Koper and Gaspard described paradoxical dynamics in the model: they discovered complicated, chaotic behavior consistent with a homoclinic orbit of Shil'nikov type, but were unable to locate the orbit itself. The Koper model has since served as a prototype to study the emergence of mixed-mode oscillations (MMOs) in slow-fast systems, but only in this paper is the existence of these elusive homoclinic orbits established. They are found first in a larger family that has been used to study singular Hopf bifurcation in multiple time scale systems with two slow variables and one fast variable. A curve of parameters with homoclinic orbits in this larger family is obtained by continuation and shown to cross the submanifold of the Koper system. The strategy used to compute the homoclinic orbits is based upon systematic investigation of intersections of invariant manifolds in this system with multiple time scales. Both canards and folded nodes are multiple time scale phenomena encountered in the analysis. Suitably chosen cross-sections and return maps illustrate the complexity of the resulting MMOs and yield a modified geometric model from the one Shil'nikov used to study spiraling homoclinic bifurcations.
description: 23 pages, 13 figures (17 subfigures). To appear in SIADS
Solution group representations as quantum symmetries of graphs
Creators: name: Roberson, David
name: Schmidt, Simon
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Algebra (math.QA)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: In 2019, Aterias et al. constructed pairs of quantum isomorphic, non-isomorphic graphs from linear constraint systems. This article deals with quantum automorphisms and quantum isomorphisms of colored versions of those graphs. We show that the quantum automorphism group of such a colored graph is the dual of the homogeneous solution group of the underlying linear constraint system. Given a vertex- and edge-colored graph with certain properties, we construct an uncolored graph that has the same quantum automorphism group as the colored graph we started with. Using those results, we obtain the first known example of a graph that has quantum symmetry and finite quantum automorphism group. Furthermore, we construct a pair of quantum isomorphic, non-isomorphic graphs that both have no quantum symmetry.
Olaf Hartung & Marguerite Rumpf (Hrsg.). (2015). Lehrkompetenz in der wissenschaftlichen Weiterbildung. Konzepte, Forschungsansätze und Anwendungen.
Creators: name: Zimmermann, Therese E.
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
title: Una lettura antropologica del pensiero di Ágnes Heller
Creators: name: Tortolici , Beatrice
Publisher: name: Roma Tre-Press
Year: 2009

description: Nella lettura delle opere di Heller ci si imbatte in una concezione dell'uomo fondamentalmente unitaria, nella quale il lato naturale, fisiologico (fatto di istinti e di bisogni) è strettamente connesso a quello storico, sociale e culturale. Il sentimento rappresenta il loro punto di contatto, e infatti la filosofia di Heller si può dire che abbia rivalutato il "sentimento" nella sua forma e nella sua sostanza e lo ha mostrato come fondamento della ragione in un continuum di motivazione, pensiero e azione.

description: B@belonline vol. 7 Ebraismo Etica Politica. Per Ágnes Heller
title: Inklusive Bildung - die äthiopische Übersetzung eines globalen Konzepts
Creators: name: Dziurzynski, Ulrike
Year: 2022

description: Inklusive Bildung ist ein globales Konzept, das, als Teil einer weltweiten Inklusions-Debatte in den letzten Jahren immer mehr Beachtung in internationalen politischen Bildungsstrategien im sogenannten globalen Norden und Süden gefunden hat. Anhand der bildungspolitischen Geschichte Äthiopiens wird in dieser Arbeit ein kritischer Blick auf das Konzept geworfen und der Frage nachgegangen, inwiefern eine eigene, länderspezifische Übersetzung von Inklusion im Bildungsbereich stattgefunden hat und welchen Einfluss internationale Abkommen und Kräfte dabei einnehmen. Anhand von fünf Kritiksträngen, die das Konzept inklusive Bildung aus unterschiedlichen Perspektiven darstellen, werden bestimmte Bereiche im äthiopischen Bildungssektor hervorgehoben. Die theoretischen Ausführungen werden anschließend mit den empirisch erhobenen Daten aus Expert*inneninterviews, durch das Verfahren der qualitativen Inhaltsanalyse, zusammengeführt. Daraus ergibt sich abschließend eine Formulierung bedachter Ergebnisse und Empfehlungen für ein national verankertes inklusives Bildungskonzept.
description: Inclusive education is a global concept that, as part of a worldwide inclusion debate, has received increasing attention in international political education strategies in the so-called global North and South. Based on Ethiopia's history of education-policies, this thesis takes a critical look at the concept and investigates the extent to which a country-specific translation of inclusion in education has taken place in Ethiopia. The goal of this study is to identify how international agreements and forces shape the agenda. Through five critical strands, which present the concept of inclusive education from different perspectives, certain areas in the Ethiopian education sector are highlighted. The theoretical implementations are then combined with the empirically collected data from expert interviews, through qualitative content analysis. The results of this conflation lead to carefully considered recommendations for a nationally anchored inclusive education concept.
Fluctuation-Dissipation Relations of a Tunnel Junction Driven by a Quantum Circuit
Creators: name: Parlavecchio, O.
name: Altimiras, C.
name: Souquet, J. -R.
name: Simon, P.
name: Safi, I.
name: Joyez, P.
name: Vion, D.
name: Roche, P.
name: Esteve, D.
name: Portier, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We derive fluctuation-dissipation relations for a tunnel junction driven by a high impedance microwave resonator, displaying strong quantum fluctuations. We find that the fluctuation-dissipation relations derived for classical forces hold, provided the effect of the circuit's quantum fluctuations is incorporated into a modified non-linear $I(V)$ curve. We also demonstrate that all quantities measured under a coherent time dependent bias can be reconstructed from their dc counterpart with a photo-assisted tunneling relation. We confirm these predictions by implementing the circuit and measuring the dc current through the junction, its high frequency admittance and its current noise at the frequency of the resonator.
description: Publisehd as Physical Review Letters, 114, 126801
Towards Optomechanical Quantum State Reconstruction of Mechanical Motion
Creators: name: Vanner, M. R.
name: Pikovski, I.
name: Kim, M. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Utilizing the tools of quantum optics to prepare and manipulate quantum states of motion of a mechanical resonator is currently one of the most promising routes to explore non-classicality at a macroscopic scale. An important quantum optomechanical tool yet to be experimentally demonstrated is the ability to perform complete quantum state reconstruction. Here, after providing a brief introduction to quantum states in phase space, we review and contrast the current proposals for state reconstruction of mechanical motional states and discuss experimental progress. Furthermore, we show that mechanical quadrature tomography using back-action-evading interactions gives an $s$-parameterized Wigner function where the numerical parameter $s$ is directly related to the optomechanical measurement strength. We also discuss the effects of classical noise in the optical probe for both state reconstruction and state preparation by measurement.
description: Published in the Annalen der Physik special issue: Quantum and Hybrid Mechanical Systems edited by Harris, Rabl, and Schliesser (11 pages, 2 figures, close to published version)
The SAMI Galaxy Survey: Shocks and Outflows in a normal star-forming galaxy
Creators: name: Ho, I-Ting
name: Kewley, Lisa J.
name: Dopita, Michael A.
name: Medling, Anne M.
name: Allen, J. T.
name: Bland-Hawthorn, Joss
name: Bloom, Jessica V.
name: Bryant, Julia J.
name: Croom, Scott M.
name: Fogarty, L. M. R.
name: Goodwin, Michael
name: Green, Andy W.
name: Konstantopoulos, Iraklis S.
name: Lawrence, Jon S.
name: López-Sánchez, Á. R.
name: Owers, Matt S.
name: Richards, Samuel
name: Sharp, Rob
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We demonstrate the feasibility and potential of using large integral field spectroscopic surveys to investigate the prevalence of galactic-scale outflows in the local Universe. Using integral field data from SAMI and the Wide Field Spectrograph, we study the nature of an isolated disk galaxy, SDSS J090005.05+000446.7 (z = 0.05386). In the integral field datasets, the galaxy presents skewed line profiles changing with position in the galaxy. The skewed line profiles are caused by different kinematic components overlapping in the line-of-sight direction. We perform spectral decomposition to separate the line profiles in each spatial pixel as combinations of (1) a narrow kinematic component consistent with HII regions, (2) a broad kinematic component consistent with shock excitation, and (3) an intermediate component consistent with shock excitation and photoionisation mixing. The three kinematic components have distinctly different velocity fields, velocity dispersions, line ratios, and electron densities. We model the line ratios, velocity dispersions, and electron densities with our MAPPINGS IV shock and photoionisation models, and we reach remarkable agreement between the data and the models. The models demonstrate that the different emission line properties are caused by major galactic outflows that introduce shock excitation in addition to photoionisation by star-forming activities. Interstellar shocks embedded in the outflows shock-excite and compress the gas, causing the elevated line ratios, velocity dispersions, and electron densities observed in the broad kinematic component. We argue from energy considerations that, with the lack of a powerful active galactic nucleus, the outflows are likely to be driven by starburst activities. Our results set a benchmark of the type of analysis that can be achieved by the SAMI Galaxy Survey on large numbers of galaxies.
description: 17 pages, 15 figures. Accepted to MNRAS. References updated
title: Die Wirksamkeiten von FOMO- und Knappheitsappellen und der Einfluss von Fear Of Missing Out im Kontext von Online-Buchungen
Creators: name: Bayrakci, Tolga
Year: 2022

description: Die Angst, etwas zu verpassen, auch bekannt als FOMO ("Fear Of Missing Out"), ist mittlerweile ein weit verbreitetes und bekanntes Phänomen, insbesondere unter jungen Menschen. Das Konzept wurde folglich von Unternehmen und Marketingexperten aufgegriffen, wodurch FOMO-Appelle zunehmend in Werbeanzeigen, vor allem im Online-Handel, verwendet werden. Der Einsatz zielt darauf ab, bei den Konsumenten FOMO auszulösen und dadurch den Verkauf zu fördern. Ein weiteres häufig genutztes Marketinginstrument ist das Konzept der Knappheit, das die Gesamtnachfrage steigern und das Interesse der Kunden über einen bestimmten Zeitraum wecken soll. Der Einsatz von Knappheitsappellen kann ebenfalls FOMO bei den Konsumenten auslösen, auch wenn es nicht das primäre Ziel ist. Um die Unterschiede der beiden Werbestrategien besser zu verstehen, untersucht die vorliegende Arbeit die Wirksamkeiten von FOMO- und Knappheitsappellen auf die Kaufabsicht, den wahrgenommenen Wert und die Einstellung gegenüber dem Produkt im Kontext von Online- Buchungen von Unterkünften. Darüber hinaus wird der Einfluss der individuellen FOMO-Ausprägung der Konsumenten dabei näher erforscht. Hierfür wurde eine quantitative Untersuchung in Form einer Online-Umfrage mit 321 Teilnehmern durchgeführt. Demnach wirkt sich in der durchgeführten Studie der Einsatz eines FOMO- und Knappheitsappells bei Online-Buchungen positiv auf die Kaufabsicht, den wahrgenommenen Wert und die Einstellung gegenüber dem Produkt aus, wobei lediglich das Ergebnis für den Einsatz eines Knappheitsappells und der Einstellung zum Produkt nicht signifikant ist. Darüber hinaus übt beim Einsatz eines FOMO-Appells die individuelle FOMO-Ausprägung der Teilnehmer ebenfalls einen signifikanten Einfluss aus. Dabei gilt, dass Konsumenten ab einem durchschnittlichen FOMO-Level eine höhere Kaufabsicht haben und der wahrgenommene Wert des Angebots steigt. Dieser Effekt verstärkt sich mit zunehmendem FOMO-Level einer Person. Bei der Verwendung eines Knappheitsappells hat die individuelle FOMO-Ausprägung ebenfalls einen positiven Effekt auf diese beiden Erfolgsgrößen, allerdings sind diese Ergebnisse nicht signifikant. Des Weiteren konnte kein signifikanter Unterschied zwischen dem Einsatz eines FOMO-Appells und eines Knappheitsappells festgestellt werden.
Ultrafast control of spin-orbital separation probed with time-resolved RIXS
Creators: name: Müller, Aaron
name: Grandi, Francesco
name: Eckstein, Martin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quasi-one-dimensional systems exhibit many-body effects elusive in higher dimensions. A prime example is spin-orbital separation, which has been measured by resonant inelastic X-ray scattering (RIXS) in Sr$_2$CuO$_3$. Here, we theoretically analyze the time-resolved RIXS spectrum of Sr$_2$CuO$_3$ under the action of a time-dependent electric field. We show that the external field can reversibly modify the parameters in the effective $t-J$ model used to describe spinon and orbiton dynamics in the material. For strong driving amplitudes, we find that the spectrum changes qualitatively as a result of reversing the relative spinon to orbiton velocity. The analysis shows that in general, the spin-orbital dynamics in Mott insulators in combination with time-resolved RIXS should provide a suitable platform to explore the reversible control of many-body physics in the solid with strong laser fields.
description: 13 pages, 4 figures
„Raumaneignung und Raumnutzung“ 5. Tagung der informellen Arbeitsgruppe Erwachsenenbildung und Raum. 10. bis 11. märz 2017 an der Universität Potsdam
Creators: name: Ebner Von Eschenbach, Malte
name: Kondratjuk, Maria
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
Flat Foldings of Plane Graphs with Prescribed Angles and Edge Lengths
Creators: name: Abel, Zachary
name: Demaine, Erik D.
name: Demaine, Martin L.
name: Eppstein, David
name: Lubiw, Anna
name: Uehara, Ryuhei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Geometry (cs.CG)
subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences
subject: F.2.2

description: When can a plane graph with prescribed edge lengths and prescribed angles (from among $\{0,180^\circ, 360^\circ$\}) be folded flat to lie in an infinitesimally thin line, without crossings? This problem generalizes the classic theory of single-vertex flat origami with prescribed mountain-valley assignment, which corresponds to the case of a cycle graph. We characterize such flat-foldable plane graphs by two obviously necessary but also sufficient conditions, proving a conjecture made in 2001: the angles at each vertex should sum to $360^\circ$, and every face of the graph must itself be flat foldable. This characterization leads to a linear-time algorithm for testing flat foldability of plane graphs with prescribed edge lengths and angles, and a polynomial-time algorithm for counting the number of distinct folded states.
description: 21 pages, 10 figures
Experimental Realization of Weyl Exceptional Rings in a Synthetic Three-Dimensional Non-Hermitian Phononic Crystal
Creators: name: Li, Zheng-wei
name: Liu, Jing-jing
name: Chen, Ze-Guo
name: Tang, Weiyuan
name: Chen, An
name: Liang, Bin
name: Ma, Guancong
name: Cheng, Jian-chun
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Weyl points (WPs) are isolated degeneracies carrying quantized topological charges, and are therefore robust against Hermitian perturbations. WPs are predicted to spread to the Weyl exceptional rings (WERs) in the presence of non-Hermiticity. Here, we use a one-dimensional (1D) Aubry-Andre-Harper (AAH) model to construct a Weyl semimetal in a 3D parameter space comprised of one reciprocal dimension and two synthetic dimensions. The inclusion of non-Hermiticity in the form of gain and loss produces a WER. The topology of the WER is characterized by both its topological charge and non-Hermitian winding numbers. The WER is experimentally observed in a 1D phononic crystal with the non-Hermiticity introduced by active acoustic components. In addition, Fermi arcs are observed to survive the presence of non-Hermitian effect. We envision our findings to pave the way for studying the high-dimensional non-Hermitian topological physics in acoustics.
description: 14 pages, 5 figures
Zielgruppen der DGWF Jahrestagungen. Eine Zeitreihenanalyse unter Berücksichtigung der aktuellen Evaluationsdaten der DGWf-Jahrestagung 2016 an der Universität Wien
Creators: name: Lobe, Claudia
name: Walber, Markus
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
Lateinamerikanische Zukunftskonferenz zur wissenschaftlichen Weiterbildung. Bericht zur Tagung „Proyectando la Educación Continua Universitaria“. 04. - 07. Oktober 2016 in Santiago de Chile
Creators: name: Hörr, Beate
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
title: Naturschutzfachliche Bewertung und Maßnahmen zur Erhaltung pannonischer Trockenrasen am Fuße des Leithagebirges
Creators: name: Meidenbauer, Birgit
Year: 2022

description: Die pannonischen Steppen- und Trockenrasen im Neusiedler See-Gebiet entstanden durch die jahrhundertelange Bewirtschaftung und Nutzung des Menschen. Viele dieser zu schützenden Lebensräume wurden zerstört oder nachhaltig degradiert. Der Zustand der Trockenrasenflächen am Thenau-Riegel wurde im Zuge einer vegetationsökologischen Untersuchung ermittelt, und in Folge dessen geeignete Managementmaßnahmen erarbeitet. Dazu wurden Vegetationsaufnahmen der zufällig ausgewählten Flächen im Untersuchungsgebiet, sowie Interviews zur jüngeren Nutzungsgeschichte durchgeführt. Zudem wurde auch der Erhaltungszustand der Einzelflächen nach der Fauna-Flora-Habitat-Richtlinie bewertet. Da sich die verschiedenen Vegetationstypen der Trockenrasenstandorte in ihrer Kulturabhängigkeit unterscheiden, wurde der Restaurationsbedarf den verschiedenen Pflanzengesellschaften angepasst. Um auch die Sukzession der Trockenrasenbereiche einschätzen zu können, wurde mit Hilfe der Lebensformen der Arten und mit dem Vergleich der Daten aus den vorangegangenen Untersuchungen mögliche Entwicklungstypen und –tendenzen behandelt. Die Ergebnisse zeigten, dass am Thenau-Riegel ein eng verzahntes Vegetationsmosaik der verschiedenen Pflanzengesellschaften vorherrscht. Es wurden fünf verschiedene Assoziationen von Trocken- und Halbtrockenrasengesellschaften gefunden. Bei knapp mehr als der Hälfte (56%) der untersuchten Flächen zeigte sich ein sehr guter Erhaltungszustand (A), 44% der Flächen als gut (B). Störungszeiger kamen im Schutzgebiet eigentlich nicht vor, Gehölze jedoch nicht eingerechnet. Nur eine Fläche am Rande des Gebietes, neben einer Ackerfläche, zeigte einen signifikant hohen Deckungswert von Securigera varia. Zur Klärung des Zustandes und Restaurationsbedarfs von weiteren pannonischen Trocken- und Halbtrockenrasen im Neusiedler See-Gebiet, sollten flächendeckende Untersuchungen mit Fokus auf die mögliche Vernetzung der Trockenlebensräume, durchgeführt werden. Zusammenfassend kann gesagt werden, dass zur Erhaltung des kleinräumigen Landschaftsmosaiks und zur Wiederherstellung eines günstigen Erhaltungszustandes die Weiterführung der extensiven Nutzung erforderlich ist.
Особенности роста и развития сахарной свёклы в период обработки послевсходовыми гербицидами
Creators: name: Е.А. Дворянкин
Publisher: name: Сахар
Year: 2020
Subjects: сахарная свёкла
рост и развитие
семена
проросток
фазы роста
дыхание
набухание
гербициды
фитотоксичность

description: Изложен краткий обзор особенностей роста и развития растений сахарной свёклы, в том числе в зависимости от обработки послевсходовыми гербицидами. Представлены экспериментальные данные по интенсивности дыхания и набуханию семян сахарной свёклы в лабораторных условиях. Приведены авторские фотографии отдельных фаз роста и развития сахарной свёклы.
Landesgruppe Rheinlandpfalz und Saarland stößt EU-Initiativbericht zur wissenschaftlichen Weiterbildung in Brüssel an
Creators: name: Klinkner, Margot
Publisher: name: Zeitschrift Hochschule und Weiterbildung (ZHWB)
Year: 2017

description: Zeitschrift Hochschule und Weiterbildung (ZHWB), 2017/1: Zielgruppen wissenschaftlicher Weiterbildung
Local dynamics and thermal activation in the transverse-field Ising chain
Creators: name: Yang, Jiahao
name: Yuan, Weishi
name: Imai, Takashi
name: Si, Qimiao
name: Wu, Jianda
name: Kormos, Márton
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: There has been considerable recent progress in identifying candidate materials for the transverse-field Ising chain (TFIC), a paradigmatic model for quantum criticality. Here, we study the local spin dynamical structure factor of different spin components in the quantum disordered region of the TFIC. We show that the low-frequency local dynamics of the spins in the Ising- and transverse-field directions have strikingly distinctive temperature dependencies. This leads to the thermal-activation gap for the secular term of the NMR $1/T_2^{\prime}$ relaxation rate to be half of that for the $1/T_1$ relaxation rate. Our findings reveal a new surprise in the nonzero-temperature dynamics of the venerable TFIC model and uncover a means to evince the material realization of the TFIC universality.
description: 17 pages, 5 figures