cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Energy flow between two hydrodynamically coupled particles kept at different effective temperatures
Creators: name: Bérut, Antoine
name: Petrosyan, Artyom
name: Ciliberto, Sergio
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We measure the energy exchanged between two hydrodynamically coupled micron-sized Brownian particles trapped in water by two optical tweezers. The system is driven out of equilibrium by random forcing the position of one of the two particles. The forced particle behaves as it has an "effective temperature" higher than that of the other bead. This driving modifies the equilibrium variances and cross-correlation functions of the bead positions: we measure an energy flow between the particles and an instantaneous cross-correlation, proportional to the effective temperature difference between the two particles. A model of the interaction which is based on classical hydrodynamic coupling tensors is proposed. The theoretical and experimental results are in excellent agreement.
Massive Black Hole Science with eLISA
Creators: name: Barausse, Enrico
name: Bellovary, Jillian
name: Berti, Emanuele
name: Holley-Bockelmann, Kelly
name: Farris, Brian
name: Sathyaprakash, Bangalore
name: Sesana, Alberto
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The evolving Laser Interferometer Space Antenna (eLISA) will revolutionize our understanding of the formation and evolution of massive black holes along cosmic history by probing massive black hole binaries in the $10^3-10^7$ solar mass range out to redshift $z\gtrsim 10$. High signal-to-noise ratio detections of $\sim 10-100$ binary coalescences per year will allow accurate measurements of the parameters of individual binaries (such as their masses, spins and luminosity distance), and a deep understanding of the underlying cosmic massive black hole parent population. This wealth of unprecedented information can lead to breakthroughs in many areas of physics, including astrophysics, cosmology and fundamental physics. We review the current status of the field, recent progress and future challenges.
description: 22 pages, 3 figures. Minor change (added two references) to match version accepted in the Proceedings of LISA Symposium X (Journal of Physics: Conference Series)
An inaugural dissertation on the Pertussis, or Hooping Cough
Creators: name: Cornelison, Abraham
Publisher: name: No Publisher Supplied
Year: 1793

description: Among the diseases incident to the human body, those which have raged as epidemics, have particularly attracted the attention of physicians. At no period of life is a contagious disease more distressing than during infancy and childhood: in that helpless stage of life symptoms must be more manifest before they can be known; and when they are known, much difficulty attends the administration of remedies for their relief. I have for these reasons chosen the subject of this dissertation, the [Whooping] Cough, Pertussis, a disease, which, though it commonly affects infants and children, yet sometimes attacks any age and sex, and has at times put on such serious symptoms as to be fatal.
Quantum defect model of a reactive collision at finite temperature
Creators: name: Jachymski, Krzysztof
name: Krych, Michał
name: Julienne, Paul S.
name: Idziaszek, Zbigniew
Publisher: name: arXiv
Year: 2014
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider a general problem of inelastic collision of particles interacting with power-law potentials. Using quantum defect theory we derive an analytical formula for the energy-dependent complex scattering length, valid for arbitrary collision energy, and use it to analyze the elastic and reactive collision rates. Our theory is applicable for both universal and non-universal collisions. The former corresponds to the unit reaction probability at short range, while in the latter case the reaction probability is smaller than one. In the high-energy limit we present a method that allows to incorporate quantum corrections to the classical reaction rate due to the shape resonances and the quantum tunneling.
description: followup to arXiv:1301.5857
title: Die Aspekte der Reisen des Ármin Vámbéry
Creators: name: Zombori, Bálint
Year: 2021

description: Das Ziel meiner Arbeit ist eine kritische Stellungnahme zu verfassen bezüglich Beobachtungen und Aufzeichnungen des Ármin Vámbéry und zurückblicken auf die Aspekte des Orientalismus in der Mitte des 19. und der Anfang des 20. Jahrhunderts. Meine Diplomarbeit beschäftigt sich mit der Kritik des Orientalismus, dem Leben des ungarischen Reisenden und seinen Reisen aus der zweiten Hälften des 19. Jahrhunderts. Vámbéry’s Beobachtungen wurden aus unterschiedlichen Perspektiven kritisiert, manche meinten, er sei ein Antisemit, die Reisen seien nur Erfindungen seiner Phantasie, oder er sei ein englischer 5 Zombori Bálint 01303034 Spion. Neben den oben genannten Themen möchte ich noch eine Völkertafel anhand Vámbéry’s Aufzeichnungen aufstellen basierend auf der Steirischen Völkertafel.
title: Von der Weltwirtschaftskrise zur Weltfinanzkrise
Creators: name: Jantschnig, Albert
Year: 2021

description: Die vorliegende Arbeit stellt einen historischen Vergleich der Entstehung der Great Depression 1929-1933 und der Finanzkrise 2007-2009 in den USA an. Ich analysiere die Risikofaktoren, Ursachen und Auslöser, die zum Ausbruch der beiden Krisen geführt sowie die Faktoren, die zu ihrer Verbreitung und Vertiefung beigetragen haben. Anhand der Literatur und ökonomischer Daten stelle ich die beiden Krisen gegenüber, mit dem Ziel, Gemeinsamkeiten und Unterschiede aufzuzeigen und damit zu einem besseren Verständnis der Entstehung von Wirtschafts- und Finanzkrisen allgemein beizutragen. Die Gemeinsamkeiten der Great Depression und der Finanzkrise sind verblüffend zahlreich. Beide Krisen wurden durch das Platzen einer kreditfinanzierten Spekulationsblase am Aktien- bzw. Immobilienmarkt ausgelöst und durch „Bank Runs“ auf (Investment-)Banken intensiviert. Der starke Einsatz von Fremdkapital („Leverage“) und die damit einhergehende Verschuldung der amerikanischen Haushalte waren wesentliche Merkmale beider Krisen. Ausländisches Kapital und Ungleichheiten in der Vermögensverteilung verstärkten die Blasenbildung in den 1920er wie in den 2000er Jahren. Beide Krisen entwickelten sich in einem Umfeld politisch geförderter Wachstumseuphorie sowie instabiler und mangelhaft regulierter Finanzmärkte. Während in den 1930er Jahren das Fehlen eines Einlagensicherungssystems zu „Bank Runs“ führte, war es in den 2000er Jahren ebendiese Einlagensicherung, die Banken zu risikoreichen Geschäften verleitet hatte („Moral Hazard“). Das Scheitern der systemrelevanten („Too Big to Fail“) Investmentbank Lehman Brothers im September 2008 führte zu einer Liquiditätskrise ähnlich den Bankenpleiten der 1930er Jahre. Die Geldpolitik der Federal Reserve spielte in beiden Krisen eine wichtige Rolle. Niedrige Zinsen hatten einen entscheidenden Anteil an der Entstehung der Spekulationsblasen und die Anhebung der Leitzinsen trug zum Platzen der Blasen bei. In der Reaktion der Federal Reserve liegt zugleich der größte Unterschied zwischen den beiden Krisen. Während die Fed in den 1930er Jahren nur verhalten reagierte (der Goldstandard schränkte die Geldpolitik massiv ein) und somit ein Abgleiten in Deflation und Depression zuließ, reagierte sie in den 2000er Jahren umgehend und entschlossen. Dadurch wurde höchstwahrscheinlich eine Wiederholung der Great Depression verhindert.
Subgraph covers -- An information theoretic approach to motif analysis in networks
Creators: name: Wegner, Anatol E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Social and Information Networks (cs.SI)
subject: Discrete Mathematics (cs.DM)
subject: Physics and Society (physics.soc-ph)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Many real world networks contain a statistically surprising number of certain subgraphs, called network motifs. In the prevalent approach to motif analysis, network motifs are detected by comparing subgraph frequencies in the original network with a statistical null model. In this paper we propose an alternative approach to motif analysis where network motifs are defined to be connectivity patterns that occur in a subgraph cover that represents the network using minimal total information. A subgraph cover is defined to be a set of subgraphs such that every edge of the graph is contained in at least one of the subgraphs in the cover. Some recently introduced random graph models that can incorporate significant densities of motifs have natural formulations in terms of subgraph covers and the presented approach can be used to match networks with such models. To prove the practical value of our approach we also present a heuristic for the resulting NP-hard optimization problem and give results for several real world networks.
description: 10 pages, 7 tables, 1 Figure
Coherent generation of nonclassical light on chip via detuned photon blockade
Creators: name: Müller, Kai
name: Rundquist, Armand
name: Fischer, Kevin A.
name: Sarmiento, Tomas
name: Lagoudakis, Konstantinos G.
name: Kelaita, Yousif A.
name: Muñoz, Carlos Sánchez
name: del Valle, Elena
name: Laussy, Fabrice P.
name: Vučković, Jelena
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The on-chip generation of non-classical states of light is a key-requirement for future optical quantum hardware. In solid-state cavity quantum electrodynamics, such non-classical light can be generated from self-assembled quantum dots strongly coupled to photonic crystal cavities. Their anharmonic strong light-matter interaction results in large optical nonlinearities at the single photon level, where the admission of a single photon into the cavity may enhance (photon-tunnelling) or diminish (photon-blockade) the probability for a second photon to enter the cavity. Here, we demonstrate that detuning the cavity and QD resonances enables the generation of high-purity non-classical light from strongly coupled systems. For specific detunings we show that not only the purity but also the efficiency of single-photon generation increases significantly, making high-quality single-photon generation by photon-blockade possible with current state-of-the-art samples.
description: Phys. Rev. Lett. in press
Gravitational-wave energy and other fluxes in ghost-free bigravity
Creators: name: Grant, Alexander M.
name: Saffer, Alexander
name: Stein, Leo C.
name: Tahura, Shammi
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: One of the key ingredients for making binary waveform predictions in a beyond-GR theory of gravity is understanding the energy and angular momentum carried by gravitational waves and any other radiated fields. Identifying the appropriate energy functional is unclear in Hassan-Rosen bigravity, a ghost-free theory with one massive and one massless graviton. The difficulty arises from the new degrees of freedom and length scales which are not present in GR, rendering an Isaacson-style averaging calculation ambiguous. In this article we compute the energy carried by gravitational waves in bigravity starting from the action, using the canonical current formalism. The canonical current agrees with other common energy calculations in GR, and is unambiguous (modulo boundary terms), making it a convenient choice for quantifying the energy of gravitational waves in bigravity or any diffeomorphism-invariant theories of gravity. This calculation opens the door for future waveform modeling in bigravity to correctly include backreaction due to emission of gravitational waves.
description: 18+4 pages, 2 figures; v2: fixed typos and added references, matches published version
Mixtures-Molecules
Creators: name: Clark, Alex
Publisher: name: Zenodo
Year: 2023
Subjects: Webinar, FAIR, Cheminformatics, Chemical Data

description: This is a flash presentation highlighting working with Multi Component Systems. It was presented at the “The IUPAC WorldFAIR Chemistry Webinar “What is a chemical? – Innovations in Chemical Descriptions ”. The event was held on Feb 17, 2023, 11-12:30 pm EST. The recording is HERE. *WorldFAIR “Global cooperation on FAIR data policy and practice” is funded by the EC HORIZON-WIDERA-2021-ERA-01-41 Coordination and Support Action under Grant Agreement No. 101058393.
Thermoelectric transport through a quantum nanoelectromechanical system and its backaction
Creators: name: Zhou, Hangbo
name: Thingna, Juzar
name: Wang, Jian-Sheng
name: Li, Baowen
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a comprehensive study of thermoelectric transport properties of a quantum nanoelectromechanical system (NEMS) described by a single-electron-transistor (SET) coupled to a quantum nanomechanical resonator (NR). The effects of a quantum NR on the electronic current are investigated with special emphasis on how the SET-NR coupling strength plays a role in such a NEMS. We find that the SET-NR coupling is not only able to suppress or enhance the thermoelectric current but can also switch its direction. The effect of the NR on the thermoelectric coefficients of the SET are studied and we find that even a small SET-NR coupling could dramatically suppress the figure of merits ZT . Lastly, we investigate the backaction of electronic current on the NR and possible routes of heating or cooling the NR are discussed. We find that by appropriately tuning the gate voltage the backaction can be eliminated, which could find possible applications to enhance the sensitivity of detection devices.
Giant spin Hall effect in half-Heusler alloy topological semimetal YPtBi grown at low temperature
Creators: name: Shirokura, Takanori
name: Hai, Pham Nam
Publisher: name: arXiv
Year: 2022
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Half-Heusler alloy topological semimetal YPtBi is a promising candidate for an efficient spin source material having both large spin Hall angle $θ$$_{SH}$ and high thermal stability. However, high-quality YPtBi thin films with low bulk carrier density are usually grown at 600$°$C, which exceeds the limitation of 400$°$C for back end of line (BEOL) process. Here, we investigate the crystallinity and spin Hall effect of YPtBi thin films grown at lower growth temperature down to 300$°$C. Although $θ$$_{SH}$ degraded with lowering the growth temperature to 300$°$C due to degradation of the crystallinity, it was recovered by reducing the sputtering Ar gas pressure. We achieved a giant $θ$$_{SH}$ up to 8.2 and demonstrated efficient spin-orbit torque magnetization switching by ultralow current density of ~10$^5$ A/cm$^2$ in YPtBi grown at 300$°$C with the Ar gas pressure of 1 Pa. Our results provide the recipe to achieve giant $θ$$_{SH}$ in YPtBi grown at lower growth temperature suitable for BEOL process.
title: Wien begehen unter dekolonialer Perspektive
Creators: name: Kissel, Sophie
Year: 2021

description: Diese Arbeit beschäftigt sich mit bildungspolitischen Stadtrundgängen und überprüft anhand empirischer Beispiele deren Potential, anti-, post- und dekoloniale Theorien in die Praxis umsetzen zu können. Beginnend mit der kolonialen Expansion im 16. Jahrhundert breiteten sich weiße, heterosexuelle, christliche, männliche und kapitalistische Machtstrukturen aus, die davon abweichende Lebensweisen abwerteten und bekämpften. Noch immer prägen koloniale Kontinuitäten dementsprechend globale Hierarchien und strukturieren eurozentrische Deutungshoheiten sowie Wissenssysteme. Spätestens seit den Unabhängigkeitsbewegungen der ehemaligen Kolonien wird sich auch theoretisch mit (anhaltender) kolonialer Macht auseinandergesetzt. Anti-, post- und dekoloniale Denkschulen äußern sich kritisch gegenüber kolonialer Repräsentation und setzten sich für eine Dekolonialisierung auch jenseits ökonomischer Beziehungen ein. Auswirkungen von kolonialem Machtanspruch und Selbstverständnis sind unter anderem in der Materialisierung historischer Narrative im urbanen Raum zu finden. Bildungspolitische Stadtrundgänge versuchen die dahinterliegenden Machtstrukturen sichtbar zu machen, kritisch zu reflektieren und stattdessen nicht-hegemonialen Erzählungen und Wissen Platz zu geben. Dabei spielen Grundideen der theoretischen Strömungen bei Inhalten und Umsetzung eine Rolle.
Connection between ambient-pressure and pressure-induced superconducting phases in alkaline iron selenide superconductors
Creators: name: Gu, Dachun
name: Sun, Liling
name: Wu, Qi
name: Gao, Peiwen
name: Guo, Jing
name: Zhang, Chao
name: Zhang, Shan
name: Zhou, Yazhou
name: Zhao, Zhongxian
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A unique platform for investigating the correlation between the antiferromagnetic (AFM) and superconducting (SC) states in high temperature superconductors is created by the discovery of alkaline iron selenide superconductors which are composed of an AFM insulating phase and a SC phase separated spatially. Our previous studies showed that pressure can fully suppress the superconductivity of ambient-pressure superconducting phase (SC-I) and AFM order simultaneously, then induce another superconducting phase (SC-II) at higher pressure. Consequently, the connection between the two superconducting phases becomes an intriguing issue. In this study, on the basis of observing pressure-induced reemergence of superconductivity in Rb0.8Fe2-ySe2-xTex (x=0, 0.19 and 0.28) superconductors, we find that the superconductivity of the SC-I and SC-II phases as well as the AFM ordered state can be synchronously tuned by Te doping and disappear together at the doping level of x=0.4. We propose that the two superconducting phases are connected by the AFM phase, in other words, the state of long-ranged AFM order plays a role in giving rise to superconductivity of the SC-I phase, while the fluctuation state of the suppressed AFM phase drives the emergence of SC-II phase. These results comprehensively demonstrate the versatile roles of AFM states in stabilizing and developing superconductivity in the alkaline iron selenide superconductors.
description: 21 pages, 4 figures
Super-Rényi Entropy & Wilson Loops for N=4 SYM and their Gravity Duals
Creators: name: Crossley, Michael
name: Dyer, Ethan
name: Sonner, Julian
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the supersymmetric Rényi entropies across a spherical entanglement surface in N=4 SU(N) SYM theory using localization on the four-dimensional ellipsoid. We extract the leading result at large N and λ, and match its universal part to a gravity calculation involving a hyperbolically sliced supersymmetric black hole solution of N=4+ SU(2) X U(1) gauged supergravity in five dimensions. We repeat the analysis in the presence of a Wilson loop insertion and find again a perfect match with the dual string theory. Understanding the Wilson loop operator requires knowledge of the full ten-dimensional IIB supergravity solution which we elaborate upon.
description: 30+1 pages, 1 table; minor corrections, references added; matches published version (JHEP)
Spin functional renormalization group for the $J_{1}J_{2}J_{3}$ quantum Heisenberg model
Creators: name: Tarasevych, Dmytro
name: Rückriegel, Andreas
name: Keupert, Savio
name: Mitsiioannou, Vasilios
name: Kopietz, Peter
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We use our recently developed functional renormalization group (FRG) approach for quantum spin systems to investigate the phase diagram of the frustrated $J_{1}J_{2}J_{3}$ quantum Heisenberg model on a cubic lattice. From a simple truncation of the hierarchy of FRG flow equations for the irreducible spin-vertices which retains only static spin fluctuations and neglects the flow of the four-spin interaction, we can estimate the critical temperature with a similar accuracy as the numerically more expensive pseudofermion FRG. In the regime where the ground state exhibits either ferromagnetic or antiferromagnetic order, a more sophisticated truncation including the renormalization of the four-spin interaction as well as dynamic spin fluctuations reveals the underlying renormalization group fixed point and yields critical temperatures which deviate from the accepted values by at most 4 %.
description: 18 pages, 12 figures, corrected mistakes described in erratum: 10.1103/PhysRevB.107.019904
title: Ein spätantiker Fundus im Hinterland von Carnuntum
Creators: name: Vlcek, Eva
Year: 2021

description: Die vorliegende Arbeit beschäftigt sich mit den in den Jahren 2004 und 2005 auf der Trasse der A6 freigelegten Strukturen eines spätantiken Wohngebäudes und eines zugehörigen kleinen Bestattungsplatzes auf der Flur Heidwiesen bei Bruckneudorf (Burgenland). Die Objekte befinden sich nur wenige hundert Meter nördlich des außergewöhnlich reich ausgestatteten „Gutshofes von Bruckneudorf“. Von einer florierenden spätantiken Siedlungslandschaft auf der Flur Heidwiesen zeugen mehrere Wohngebäude und andere Strukturen im unmittelbaren Umland des großen Landgutes von Bruckneudorf. Auch das in dieser Arbeit behandelte kleine Wohngebäude war Teil dieser hochfunktionalen landwirtschaftlichen Produktionskette, die besonders ab der Regierungszeit des Valentinian I. eine deutliche Intensivierung erfuhr. Eine Datierung der Kontexte anhand des Fundmaterials zeigt, dass die Anlage in der zweiten Hälfte des 4. Jh.s errichtet und in den folgenden Jahrzehnten bis etwa 400 n. mehrmals ausgebaut wurde. Ab dem ausgehenden 4. Jh. setzt auf dem Areal eine Bestattungstätigkeit nur wenige Meter nordöstlich des kleinen Wohngebäudes ein. Die Beigaben des Gräberfeldes belegen eine Siedlungsaktivität auf der Flur Heidwiesen bis in das erste Drittel des 5. Jh.s.
Signatures of cooperative emission in photon coincidence: Superradiance versus measurement-induced cooperativity
Creators: name: Cygorek, Moritz
name: Scerri, Eleanor D.
name: Santana, Ted S.
name: Koong, Zhe X.
name: Gerardot, Brian D.
name: Gauger, Erik M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Indistinguishable quantum emitters confined to length scales smaller than the wavelength of the light become superradiant. Compared to uncorrelated and distinguishable emitters, superradiance results in qualitative modifications of optical signals such as photon coincidences. However, recent experiments revealed that similar signatures can also be obtained in situations where emitters are too far separated to be superradiant if correlations between emitters are induced by the wave function collapse during an emission-angle-selective photon detection event. Here, we compare two sources for cooperative emission, superradiance and measurement-induced cooperativity, and analyze their impact on time-dependent optical signals. We find that an anti-dip in photon coincidences at zero time delay is a signature of inter-emitter correlations in general but does not unambiguously prove the presence of superradiance. This suggests that photon coincidences at zero time delay alone are not sufficient and time-dependent data is necessary to clearly demonstrate a superradiant enhancement of the spontaneous radiative decay rate.
ผลการใช้รูปแบบการเรียนการสอนมโนทัศน์ร่วมกับเทคนิคผังกราฟิกเพื่อเสริมสร้างความสามารถในการคิดรวบยอดสำหรับเด็กอนุบาล
Creators: name: ศศิญา สุจริต
Publisher: name: ศูนย์นวัตกรรมทางการศึกษา สื่อสิ่งพิมพ์ และสื่อออนไลน์ จุฬาลงกรณ์มหาวิทยาลัย
Year: 2565
Subjects: รูปแบบการเรียนการสอนมโนทัศน์
เทคนิคผังกราฟิก
ความสามารถในการคิดรวบยอด
เด็กอนุบาล

description: วารสารครุศาสตร์, 50, 3, EDUCU5003001 (14 pages)
Affect
Creators: name: Mustakallio, Juhana
name: Katila, Julia
name: Ruusuvuori, Johanna
Publisher: name: OSF
Year: 2022
Subjects: Conversation Analysis
Encyclopedia
Ethnomethodology
Interactional Linguistics

description: Emotions and affects are an omnipresent aspect of all interaction, but they are rarely explicated in words. In conversation analysis the terms ‘emotion’ and ‘affect’ are used often interchangeably to refer to observable aspects of sentiments emerging in and through interaction (Ruusuvuori 2013: 332).
High-order Compact Difference Schemes for the Modified Anomalous Subdiffusion Equation
Creators: name: Ding, Hengfei
name: Li, Changpin
Publisher: name: arXiv
Year: 2014
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper, two kinds of high-order compact finite difference schemes for second-order derivative are developed. Then a second-order numerical scheme for Riemann-Liouvile derivative is established based on fractional center difference operator. We apply these methods to fractional anomalous subdiffusion equation to construct two kinds of novel numerical schemes. The solvability, stability and convergence analysis of these difference schemes are studied by Fourier method in details. The convergence orders of these numerical schemes are $\mathcal {O}(τ^2+h^6)$ and $\mathcal {O}(τ^2+h^8)$, respectively. Finally, numerical experiments are displayed which are in line with the theoretical analysis.
description: 4
title: Sprache als Marker für die Nationsbildung am Beispiel (post-)sowjetischer Staaten
Creators: name: Szostak, Agatha
Year: 2021

description: Mit dem Zerfall der Sowjetunion wächst auch der Wunsch nach sprachlicher Unabhängigkeit im postsowjetischen Raum. Während in der Sowjetunion Russisch die dominierende Lingua Franca war, soll in der Ukraine und in Weißrussland die Sprache der Titularnation zur alleinigen Staatssprache werden. Im direkten Vergleich der beiden Länder zeigen sich Unterschiede auf dem Weg zur sprachlichen Unabhängigkeit. Diese lassen sich mit den unterschiedlichen politischen Phasen und der Entwicklung der Nationsbildung in den jeweiligen Ländern erklären. In der Ukraine wurde 1989 das erste Sprachengesetz verabschiedet, das Ukrainisch zur alleinigen Staatssprache erklärte. Weißrussland hingegen hat seit 1995 Russisch und Weißrussisch als Staatssprachen. Neben der Nationsbildung hat die mehrsprachige Situation auch Auswirkungen auf die Identität der Menschen.
The production and decay of the top partner $T$ in the left-right twin higgs model at the ILC and CLIC
Creators: name: Liu, Yao-Bei
name: Xiao, Zhen-Jun
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The left-right twin Higgs model (LRTHM) predicts the existence of the top partner $T$. In this work, we make a systematic investigation for the single and pair production of this top partner $T$ through the processes: $e^{+}e^{-}\to t\ov{T} + T\bar{t}$ and $ T\ov{T}$, the neutral scalar (the SM-like Higgs boson $h$ or neutral pseudoscalar boson $ϕ^{0}$) associate productions $e^{+}e^{-}\to t\ov{T}h +T\bar{t}h$, $T\ov{T}h$, $t\ov{T}ϕ^{0}+T\bar{t}ϕ^{0}$ and $ T\ov{T}ϕ^{0}$. From the numerical evaluations for the production cross sections and relevant phenomenological analysis we find that (a) the production rates of these processes, in the reasonable parameter space, can reach the level of several or tens of fb; (b) for some cases, the peak value of the resonance production cross section can be enhanced significantly and reaches to the level of pb; (c) the subsequent decay of $T\to ϕ^{+}b \to t\bar{b}b$ may generate typical phenomenological features rather different from the signals from other new physics models beyond the standard model(SM); and (d) since the relevant SM background is generally not large, some signals of the top partner $T$ predicted by the LRTHM may be detectable in the future ILC and CLIC experiments.
description: 20pages, 15 figures and 6 Tables. Minor corrections on text. new references added
The Influence of Beta Decay Rates on r-Process Observables
Creators: name: Lund, Kelsey A.
name: Engel, J.
name: McLaughlin, G. C.
name: Mumpower, M. R.
name: Ney, E. M.
name: Surman, R.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The rapid neutron capture process (r-process) is one of the main mechanisms whereby elements heavier than iron are synthesized, and is entirely responsible for the natural production of the actinides. Kilonova emissions are modeled as being largely powered by the radioactive decay of species synthesized via the r -process. Given that the r -process occurs far from nuclear stability, unmeasured beta decay rates play an essential role in setting the time scale for the r -process. In an effort to better understand the sensitivity of kilonova modeling to different theoretical global beta-decay descriptions, we incorporate these into nucleosynthesis calculations. We compare the results of these calculations and highlight differences in kilonova nuclear energy generation and light curve predictions, as well as final abundances and their implications for nuclear cosmochronometry. We investigate scenarios where differences in beta decay rates are responsible for increased nuclear heating on time scales of days that propagates into a significantly increased average bolometric luminosity between 1-10 days post-merger. We identify key nuclei, both measured and unmeasured, whose decay rates are directly impact nuclear heating generation on timescales responsible for light curve evolution. We also find that uncertainties in beta decay rates significantly impact ages estimates from cosmochronometry.
Cosmological three-coupled scalar theory for the dS/LCFT correspondence
Creators: name: Myung, Yun Soo
name: Moon, Taeyoon
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: We investigate cosmological perturbations generated during de Sitter inflation in the three-coupled scalar theory. This theory is composed of three coupled scalars ($ϕ_p,p=1,2,3$) to give a sixth-order derivative scalar theory for $ϕ_3$, in addition to tensor. Recovering the power spectra between scalars from the LCFT correlators in momentum space indicates that the de Sitter/logarithmic conformal field theory (dS/LCFT) correspondence works in the superhorizon limit. We use LCFT correlators derived from the dS/LCFT differentiate dictionary to compare cosmological correlators (power spectra) and find also LCFT correlators by making use of extrapolate dictionary. This is because the former approach is more conventional than the latter. A bulk version dual to the truncation process to find a unitary CFT in the LCFT corresponds to selecting a physical field $ϕ_2$ with positive norm propagating on the dS spacetime.
description: 1+25 pages, 1 figure, version accepted for publication in JCAP
Transmission Lines Emulating Moving Media
Creators: name: Vehmas, Joni
name: Hrabar, Silvio
name: Tretyakov, Sergei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Classical Physics (physics.class-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In this paper, we show how the electromagnetic phenomena in moving magnetodielectric media can be emulated using artificial composite structures at rest. In particular, we introduce nonreciprocal periodically loaded transmission lines which support waves obeying the same rules as plane electromagnetic waves in moving media. Because the actual physical structure is at rest, in these transmission lines there are no fundamental limitations on the velocity values, which may take values larger than the speed of light or even complex values (considering complex amplitudes in the time-harmonic regime). An example circuit of a unit cell of a "moving" transmission line is presented and analyzed both numerically and experimentally. The special case of composite right/left handed host line is also studied numerically. Besides the fundamental interest, the study is relevant for potential applications in realizing engineered materials for various transformations of electromagnetic fields.
description: 21 pages, 12 figures
Determining the squeezing in multimode fields using nonlocal quantum probes
Creators: name: Wißmann, Steffen
name: Breuer, Heinz-Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a scheme allowing to access the squeezing parameter of multimode fields by means of the dynamics of nonlocal quantum probes. The model under consideration is composed of two two-level systems which are coupled locally to an environment consisting of nonlocally correlated field modes given by two-mode Gaussian states. Introducing independently switchable interactions, one observes revivals of nonlocal coherences of the two-qubit system which are unambiguously connected to the squeezing parameter of the Gaussian environmental states. Thus, the locally interacting two two-level systems represent a dynamical quantum probe for the squeezing in multimode fields. It is finally demonstrated that perfectly reviving nonlocal coherences also persists for nonentangled correlated field modes and an explanation for this phenomenon is presented by connecting it to the correlation coefficient of the environmental coupling operators.
description: 16 pages, 7 figures; title and some sections changed in published version
การวิเคราะห์องค์ประกอบเชิงยืนยันวัฒนธรรมดิจิทัลของสถานศึกษาขนาดใหญ่พิเศษ สังกัดสำนักงานเขตพื้นที่การศึกษามัธยมศึกษาบุรีรัมย์
Creators: name: นิรุต เต้นปักษี
Publisher: name: ศูนย์นวัตกรรมทางการศึกษา สื่อสิ่งพิมพ์ และสื่อออนไลน์ จุฬาลงกรณ์มหาวิทยาลัย
Year: 2565
Subjects: การวิเคราะห์องค์ประกอบ
วัฒนธรรมดิจิทัล
สถานศึกษาขนาดใหญ่พิเศษ

description: วารสารครุศาสตร์, 50, 3, EDUCU5003002 (13 pages)
title: Biografische Konstruktionen von Sportstudierenden
Creators: name: Haböck, David
Year: 2021

description: Die vorliegende Masterarbeit befasst sich mit der Entwicklung eines Professionsverständnisses von Sportstudierenden vor dem Hintergrund biografischer Wissensbestände. Es gilt zu erörtern, welche Bedeutung habituelle Muster innerhalb der universitären Ausbildungssituation einnehmen. Dafür wurden biografisch-narrative Interviews mit drei Sportstudierenden auf Basis eines theoretischen Samplings geführt. Zur Auswertung der Interviews wurde auf die Methode der Grounded Theory zurückgegriffen. Die Ergebnisse zeigen, dass die Entwicklung einer biografisch-reflexiven Kompetenz in der universitären Ausbildung von den jeweiligen biografischen Wissensbeständen limitiert wird. Die drei entwickelten Kategorien Engführung, Öffnung und Anschluss verweisen auf unterschiedliche Wege, wie biografische Strukturen die Bildung eines Professionsverständnisses innerhalb der Sportlehrer*innenausbildung beeinflussen. Darüber hinaus konnte gezeigt werden, dass es förderliche und hinderliche biografische Voraussetzungen gibt, wobei letztgenannte auf Defizite innerhalb der universitären Ausbildungssituation schließen lassen.
description: This master thesis deals with the development of a professional understanding of sports students in the context of biographical knowledge. It needs to be discussed the importance of habitual patterns within the university education situation. For this purpose, biographical narrative interviews were conducted with three sport students on the basis of theoretical sampling. Grounded theory methodology was used to analyze the interviews. The results show that the development of a biographical-reflective competence in university education is limited by the respective biographical knowledge bases. The three developed categories (Engführung, Öffnung und Anschluss) refer to different ways in which biographical structures influence the formation of a professional understanding within PE teacher training. Furthermore, it was shown that there are conducive and obstructive biographical preconditions, whereby the latter indicate deficits within the university education situation.
Causality and stability of cosmic jets
Creators: name: Porth, O.
name: Komissarov, S. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In stark contrast to their laboratory and terrestrial counterparts, the cosmic jets appear to be very stable. We propose that the reason behind this remarkable property is the loss of causal connectivity across these jets, caused by their rapid expansion in response to fast decline of external pressure with the distance from the "jet engine". In atmospheres with power-law pressure distribution, the total loss of causal connectivity occurs, when the power index k>2 - the steepness which is expected to be quite common for many astrophysical environments. This conclusion does not seem to depend on the physical nature of jets - it applies both to relativistic and non-relativistic flows, both magnetically-dominated and unmagnetized jets. In order to verify it, we have carried out numerical simulations of moderately magnetized and moderately relativistic jets. Their results give strong support to our hypothesis and provide with valuable insights. In particular, we find that the z-pinched inner cores of magnetic jets expand slower than their envelopes and become susceptible to instabilities even when the whole jet is stable. This may result in local dissipation and emission without global disintegration of the flow. Cosmic jets may become globally unstable when they enter flat sections of external atmospheres. We propose that the Fanaroff-Riley morphological division of extragalactic radio sources into two classes is related to this issue. In particular, we argue that the low power FR-I jets become re-confined, causally connected and globally unstable on the scale of galactic X-ray coronas, whereas more powerful FR-II jets re-confine much further out and remain largely intact until they terminate at hot spots. Using this idea, we derived the relationship between the critical jet power and the optical luminosity of the host galaxy, which is in a very good agreement with the observations.
description: Substantially revised version. Submitted to MNRAS
Nonlinear effects in black hole ringdown
Creators: name: Cheung, Mark Ho-Yeuk
name: Baibhav, Vishal
name: Berti, Emanuele
name: Cardoso, Vitor
name: Carullo, Gregorio
name: Cotesta, Roberto
name: Del Pozzo, Walter
name: Duque, Francisco
name: Helfer, Thomas
name: Shukla, Estuti
name: Wong, Kaze W. K.
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We report evidence for nonlinear modes in the ringdown stage of the gravitational waveform produced by the merger of two comparable-mass black holes. We consider both the coalescence of black hole binaries in quasicircular orbits and high-energy, head-on black hole collisions. The presence of nonlinear modes in the numerical simulations confirms that general-relativistic nonlinearities are important and must be considered in gravitational-wave data analysis.
description: 6 + 6 pages, 7 figures. Matches version published in Physical Review Letters
ANEXO - Refinamiento del método de análisis de factibilidad del despliegue de sistemas de software: Estudio de caso
Creators: name: Panizzi, Marisa Daniela
name: Moreno, Leandro
name: Bertone, Rodolfo
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 461207
subject: Software quality, processes and metrics

description: En este anexo se presentan las plantillas utilizadas para el estudio de caso sobre la versión preliminar del método para analizar la factibilidad del despliegue de un sistema de software que, por restricciones de espacio no se pudieron incluir en el artículo.
title: Konstruktion und Imagination der Anderen
Creators: name: Metwally, Nora
Year: 2021

description: Die vorliegende Arbeit thematisiert die Konstruktion und Imagination der sogenannten Anderen in der Deutsch-als-Zweitsprache-Lehrwerksreihe Pluspunkt Deutsch – Leben in Österreich. Die auch als Othering bezeichneten Prozesse des Anders-Machens werden unter dem Gesichtspunkt hegemonialer Machtverhältnisse betrachtet und analysiert. Dabei stützen die Fremdzuschreibungen das westliche, weiße Wir der Dominanzgesellschaft, deutschlernende Migrant_innen hingegen werden in der Rückständigkeit verortet. Das Ziel dieser Untersuchung ist es, wesentliche theoretische Konzepte zur Thematik des Othering darzulegen und dieses als ein in Deutschlehrwerken ebenfalls auftretendes Phänomen zu erfassen. Die Überprüfung der These erfolgt über eine Diskursanalyse zu relevanten Kapiteln der Pluspunkt-Kursbücher. Dabei sollen spezifische Mechanismen der Konstruktion der Anderen untersucht und somit Zugehörigkeitsverhältnisse im migrationspolitischen Kontext beleuchtet werden. Mit der Methode der Kritischen Diskursanalyse ist es möglich, einen umfassenden Einblick in die „Konstitution und Konstruktion von Welt“ bzw. den damit zusammenhängenden Machtverhältnissen und „Bedeutungszuschreibungen“ (Keller 2001: 8) zu erhalten. Indem die Untersuchung auf Zusammenhänge sozialer Praxen und deren (Re-)Produktion von Sinnsystemen fokussiert, lässt sich diese Analysemethode über die Textebene hinausgehend auf gegenständliche Manifestationen von Diskursen erweitern. Somit ist für die Lehrwerksanalyse etwa die Einbeziehung von Gesetzestexten, Broschüren, Interviews und massenmedialen Narrativen bzw. öffentlichen Diskussionsprozessen bezüglich der Migrationspolitik in Österreich bedeutend. Das Deutschlehrwerk als Untersuchungsgegenstand wirft zum einen die Frage auf, inwiefern sich Othering in spezifischen Kontexten vollzieht, zum anderen wie sich Gegenmaßnahmen aus der bildungswissenschaftlichen Praxis gestalten. Bei dem zu untersuchenden Material handelt es sich um ein Kursbuch aus der Erwachsenenbildung und so sind die an Erwachsene gerichteten Erwartungen und Lernziele zu ergründen, die unter anderem den Richtlinien der gängigen ÖIF-Prüfungsformaten unterliegen. Da Pluspunkt Deutsch laut Selbstbeschreibung bestmöglich auf eine Prüfung „im Rahmen von ‚Deutsch vor Zuzug‘, der Integrationsvereinbarung oder eines Staatsbürgerschaftseintrages“ vorbereiten würde, gilt es, die spezifische Auffassung von Integration und somit von Zugehörigkeitsordnungen innerhalb der österreichischen Gesellschaft zu beleuchten.
Incommensurate double-walled carbon nanotubes as one-dimensional moiré crystals
Creators: name: Koshino, Mikito
name: Moon, Pilkyung
name: Son, Young-Woo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Cylindrical multishell structure is one of the prevalent atomic arrangements in nanowires. Being multishell, the well-defined atomic periodicity is hardly realized in it because the periodic units of individual shells therein generally do not match except for very few cases, posing a challenge to understand its physical properties. Here we show that moiré patterns generated by superimposing atomic lattices of individual shells are decisive in determining its electronic structures. Double- walled carbon nanotubes, as an example, are shown to have spectacular variations in their electronic properties from metallic to semiconducting and further to insulating states depending on their moiré patterns, even when they are composed of only semiconducting nanotubes with almost similar energy gaps and diameters. Thus, aperiodic multishell nanowires can be classified into new one-dimensional moiré crystals with distinct electronic structures.
description: 14 pages, 11 figures
title: Entwicklung von Pyrosequenziermethoden zur Untersuchung des Methylierungsstatus des Promotors und des zweiten Exons von p16
Creators: name: Jenik, Andreas
Year: 2021

description: Veränderungen des Methylierungsstatus definierter Regionen der DNA wurden mit zellulärer Seneszenz, Apoptose und verschiedenen Krankheiten assoziiert. Abweichungen im DNA-Methylierungsstatus im Promotor des Gens CDKN2A, welches das Tumorsuppressorprotein p16 codiert, treten früh in der Kanzerogenese auf. Während eine Hypermethylierung des Promotors häufig zu einer Stilllegung des Gens führt, weiß man über den Zusammenhang zwischen dem Methylierungsgrad in Exons und dem Ausmaß der Genexpression noch wenig. Im Rahmen dieser Arbeit wurden Pyrosequenziermethoden zur Bestimmung des Methylierungsstatus von sieben CpGs im CDKN2A-Promotor und elf CpGs in Exon 2 von CDKN2A entwickelt. Mittels Pyrosequenzierung kann der Methylierungsstatus einzelner CpGs in der Zielregion bestimmt werden. Zur Testung der Leistungsfähigkeit wurden die Methoden auf sieben kommerzielle Brustkrebszelllinien (MCF-7, BT20/HTB19, T47D, ZR-75-1, SKBR 3/38, MDA-MB-231, MDA-MB-468) angewandt. MCF-7, MDA-MB-468, SKBR 3/38 und BT20/HTB19 wiesen einen unmethylierten Promotor auf. In ZR-75-1 war der Promotor niedrig und heterogen, in T47D hoch methyliert. Bei MDA-MB-231 konnte der Methylierungsstatus nicht bestimmt werden. Generell war Exon 2 von CDKN2A deutlich höher methyliert als der Promotor. In MDA-MB-468 war Exon 2 heterogen methyliert. Eine Korrelation mit der Genexpression von CDKN2A wurde für die Methylierungsstatus beider Regionen nicht beobachtet. Für MDA-MB-231, MCF-7 und BT20/HTB19 konnte das Ausmaß der Genexpression nicht bestimmt werden, wahrscheinlich aufgrund homozygoter Deletion von p16. Die Pyrosequenziermethoden wurden auch auf HUVECs (Endothelzellen aus humanen Nabelschnurvenen) angewandt, welche mit H2O2 bzw. Tumornekrosefaktor-α bis zu 12 Tage lang behandelt wurden. Unabhängig von Behandlungsart und -dauer war der CDKN2A-Promotor unmethyliert während Exon 2 heterogen methyliert war. Auf die relative Genexpression von p16 hatte die Behandlung mit H2O2 bzw. Tumornekrosefaktor-α keinen Einfluss.