cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A 5% measurement of the gravitational constant in the Large Magellanic Cloud
Creators: name: Desmond, Harry
name: Sakstein, Jeremy
name: Jain, Bhuvnesh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We perform a novel test of General Relativity by measuring the gravitational constant in the Large Magellanic Cloud (LMC). The LMC contains six well-studied Cepheid variable stars in detached eclipsing binaries. Radial velocity and photometric observations enable a complete orbital solution, and precise measurements of the Cepheids' periods permit detailed stellar modelling. Both are sensitive to the strength of gravity, the former via Kepler's third law and the latter through the gravitational free-fall time. We jointly fit the observables for stellar parameters and the gravitational constant. Performing a full Markov Chain Monte Carlo analysis of the parameter space including all relevant nuisance parameters, we constrain the gravitational constant in the Large Magellanic Cloud relative to the Solar System to be $G_\text{LMC}/G_\text{SS} = 0.93^{+0.05}_{-0.04}$. We discuss the implications of this 5% measurement of Newton's constant in another galaxy for dark energy and modified gravity theories. This result excludes one Cepheid, CEP-1812, which is an outlier and needs further study: it is either a highly unusual system to which our model does not apply, or it prefers $G_\text{LMC}
description: 10 pages, 3 figures; matches Phys Rev D published version
Researchers' attitudes toward sharing code: Findings from a survey and policy implementation
Creators: name: Cadwallader, Lauren
Publisher: name: Zenodo
Year: 2022

description: Whilst many funders and publishers require or encourage researchers to share data underlying publications, the same cannot be said for code, which is also vital for reproducibility and transparency of research. We surveyed researchers in computational biology disciplines to understand if the community would support a mandatory code sharing policy, and their experiences with code sharing. Respondents (n=214) reported that, on average, 71% of their research articles have associated code, and that on average, code has not been shared for 32% of these articles. The most common reasons for not sharing code were practical issues (e.g. lack of time) and intellectual property concerns were cited by 22%. Overall, respondents reported they were on average more likely to submit to the journal if it had a mandatory code sharing policy, although Medicine and Health scientists and senior researchers viewed the proposed policy less favourably. A stronger code sharing policy has since been introduced at PLOS Computational Biology and this talk will discuss the learnings from the survey and the impact of the stronger code sharing policy implemented at the journal.
A vortex dynamics approach to the Nernst effect in fluctuating superconductors
Creators: name: Raghu, S.
name: Podolsky, D.
name: Vishwanath, A.
name: Huse, David A.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a new method to study the Nernst effect and diamagetism of an extreme type-II superconductor dominated by phase fluctuations. We work directly with vortex variables and our method allows us to tune vortex parameters (e.g., core energy and number of vortex species). We find that diamagnetic response and transverse thermoelectric conductivity ($α_{xy}$) persist well above the Kosterlitz-Thouless transition temperature, and become more pronounced as the vortex core energy is increased. However, they \textit{weaken} as the number of internal vortex states are increased. We find that $α_{xy}$ closely tracks the magnetization $(-M/T)$ over a wide range of parameters.
description: References added
ROSEHIP IN BAKING AND ITS EFFECT ON THE BODY
Creators: name: Kozimovа, R.U.
Publisher: name: Zenodo
Year: 2024

description: To improve the taste properties of bread, seeds of certain plants are used (cumin, poppy, anise, coriander, sea buckthorn fruits, etc.), which contain various biologically active substances and give bread a certain taste and aroma. Rosehip Rusa majbli is of particular interest as a raw material for improving taste qualities and a source of various biologically active substances.
Duchrow, Ulrich, Weltwirtschaft heute - Ein Feld für Bekennende Kirche?
Creators: name: Schweitzer, Wolfgang
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 37 Nr. 3 (1988): Ökumenische Rundschau, Band 37, Heft 3
Editorial: Perspektiven der Diversitätsforschung auf Literatur, Medien und deren Didaktik
Creators: name: Vogel, Tatjana
name: Delere, Malte
Publisher: name: TU Dortmund
Year: 2021
Subjects: subject: Diversität
subject: Diversitätsforschung
subject: Diversitätsstudien
subject: Inklusion
subject: 430

description: DoLiMette;9. Jg. 2021, Heft 1
Evidenzbericht zu Governancestrukturen von Klimawandel und Gesundheit in Deutschland
Creators: name: Von der Haar, Annkathrin
name: Jung, Marie
name: Voss, Maike
name: Matthies-Wiesler, Franziska
name: Geffert, Karin
Publisher: name: Zenodo
Year: 2024

description: Nach Jahrzehnten der Fortschritte im Bereich der globalen Gesundheit stellen die Auswirkungen des fortschreitenden Klima- wandels das größte Gesundheitsrisiko des 21. Jahrhunderts dar. Insbesondere vulnerable Bevölkerungsgruppen, wie z.B. Kinder, ältere Menschen oder Menschen mit Vorer- krankungen, sind unverhältnismäßig stark von den klimabedingten Gesundheitsauswirkungen betroffen.

Die Erfahrungen der letzten Jahrzehnte zeigen, dass Public Health-Maßnahmen, wie z.B. die Bereitstellung von sauberem Trinkwasser oder der Zugang zu sicheren Nahrungsmitteln, weltweit erheblich zur Verringerung der globalen Krankheitslast beigetragen haben.

Um Gesundheitssysteme widerstandsfähiger gegenüber den heutigen sowie zukünftigen Auswirkungen des Klimawandels auf unsere Gesundheit zu machen, bedarf es wirkungs- voller Maßnahmen in allen Bereichen – ins- besondere auch Public Health-Maßnahmen mit Mehrgewinnen für Gesundheit, Umwelt und Klima.6 Angesichts des fortschreitenden Klimawandels ist es wichtig, geeignete Instrumente zur evidenz-informierten Ent-scheidungsfindung zu entwickeln, die dabei unterstützen, Public Health-Maßnahmen mit dem größten Potential für die Adaptation an und Mitigation des Klimawandels zu priorisieren.

Das PHONIC (Public Health OperatioNs for clImate aCtion)-Projekt zielt darauf ab, einen praktischen Leitfaden zur Ermittlung prioritärer Maßnahmen für die Öffentliche Gesundheit zur Mitigation des und Adaptation an den Klimawandels zu entwickeln. Der Fokus des Projektes liegt auf der Identi- fizierung von Indikatoren und Maßnahmen für den Bereich von Governancestrukturen entsprechend der „Essential Public Health Operations / Functions“. Das Forschungsteam erkennt an, dass eine starke politische Steuerung im Gesundheitssektor (und darüber hinaus) sowie eine klare Bereitschaft auf höchster Regierungsebene, sich mit den Zusammenhängen von Klimawandel und Gesundheit auseinanderzusetzen und diese ambitioniert zu adressieren, wesentliche Grundlagen für den Auf- und Ausbau klimaresilienter Gesundheitssysteme und Gesellschaften sind.
Optimal measurements in quantum mechanics
Creators: name: Heinonen, T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Four common optimality criteria for measurements are formulated using relations in the set of observables, and their connections are clarified. As case studies, 1-0 observables, localization observables, and photon counting observables are considered.
description: minor corrections
title: Der Choralfreund oder Studien für das Choralspielen. 2ter Band : op. 104
Creators: name: Rinck, Johann C.
Publisher: name: Philipps-Universität Marburg
Year: 1833
Subjects: Music
Musik

description: Layoutgetreues Digitalisat der Ausg.: Mainz [u.a.] : Schott, 1833 Enth.: Choräle Nr. 18-29 Standort: Universität Gießen, Universitätsbibliothek Gießen <26> Signatur: 4o Mus 232-1/7
The role of reflections in the generation of a time delay in strong field ionization
Creators: name: Canário, Daniel Bakucz
name: Klaiber, Michael
name: Hatsagortsyan, Karen Z.
name: Keitel, Christoph H.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The problem of time delay in tunneling ionization is revisited. The origin of time delay at the tunnel exit is analysed, underlining the two faces of the concept of the tunnelling time delay: the time delay around the tunnel exit and the asymptotic time delay at a detector. We show that the former time delay, in the sense of a delay in the peak of the wavefunction, exists as a matter of principle and arises due to the sub-barrier interference of the reflected and transmitted components of the tunneling electronic wavepacket. We exemplify this by describing the tunnelling ionization of an electron bound by a short-range potential within the strong field approximation in a "deep tunnelling" regime. If sub-barrier reflections are extracted from this wavefunction, then the time delay of the peak is shown to vanish. Thus, we assert that the disturbance of the tunnelling wavepacket by the reflection from the surface of the barrier causes a time delay in the neighbourhood of the tunnel exit.
description: 14 pages, 11 figures
title: The effect of cycling using active passive trainers on spasticity, cardiovascular fitness, function and quality of life in people with moderate to severe Multiple Sclerosis
Creators: name: Barclay, Alison
Publisher: name: University of Glasgow
Year: 2023

description: Background: Exercise is an important treatment strategy for people withMultiple Sclerosis (MS). However, exercise options are limited for those with higher levels of disability, as is the evidence to support the benefits. Lower limb active passive trainers (APTs) are used for people with higher levels of disability but there is little evidence on their efficacy. The aim of this thesis was to investigate the effects of lower limb APTs on spasticity, cardiovascular fitness, function and quality of life in people with moderate to severe MS.

Included studies: The first study included was a systematic review of the effects of cycling using lower limb APTs on spasticity, cardiovascular fitness, function and quality of life in people with neurological conditions. The second was anintervention study to explore the effects of a four-week programme of lower limb APT cycling on spasticity, cardiovascular fitness, function and quality of life in people with moderate to severe MS. The final study was to determine if a single session of APT cycling reduced spasticity, measured using neurophysiology (Hoffmans reflex/H-reflex), in people with moderate to severe MS.

Main findings: The systematic review identified that APT interventions may improve walking endurance (6MWT performance, p<0.001) but not walking speed(p=0.31), however this meta-analysis only included a small number of stroke studies. The effects in other conditions and on other outcomes was unclear, as was whether electrically stimulated cycling was more beneficial than APT cycling alone. The intervention study found APT cycling to be safe and feasible in people with moderate to severe MS. Improvements were noted in the majority of outcome measures, although no significant group differences were found. The APT group also showed significant improvements in their average speed, power output and distance cycled (all p<0.001). It was felt some of the outcome measures used lacked sensitivity, especially for spasticity. The H-reflex study found that a single session of APT cycling did not change spasticity measured using H-reflex, clinical scales or patient reported measures. The H-reflex was found to be a feasible and safe outcome measure, however it appeared to be easily influenced by other factors and was time consuming to complete. 

Conclusion: This thesis highlighted that APT cycling is a safe and feasible intervention in people with moderate to severe MS, however measuring the effects of the intervention especially in relation to spasticity remain challenging. In addition, the dose, intensity and frequency required to improve symptoms, function and quality of life remains unclear. Further research is merited regarding the benefits of APT interventions and outcomes used in people with higher disability levels associated with MS.
The energetic retrofit of historic masonry buildings : focus on Central and Northern Europe
Creators: name: Popa, Emil Alexandru Dinu
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 120199 Architecture not elsewhere classified
subject: FOS: Civil engineering

description: 40% of the total energy consumed in Europe is consumed by building operation and usage (Itard, et al., 2008). In the temperate climate of central and northern Europe, a significant proportion of this consumption is attributed to building heating during the winter months. Although recent trends in European legislation favor an increase in thermal efficiency of building enclosures for new constructions, the majority of the building stock consists of buildings built to a lower standard of energy efficiency. Over 56 % of the building stock in the central and northern European countries was built before 1970, when the first building energy efficiency regulations were adopted across Europe (Itard, et al., 2008). Even if current regulations require significant energy efficiency measures (EnEV 2009 in Germany requires a maximum heating energy consumption of 50 kWh/m2a) and the trend is to increase the standards even more, a vast portion of the building stock will have been built to much lower standards. Retrofitting existing buildings represents thus a priority, if a significant reduction in energy usage for buildings is to be achieved. There is a great opportunity in tackling this problem, especially when keeping in mind the fact that most of these inefficient building require significant renovation measures, as the lifespan of their systems comes to an end The case of historic masonry buildings across Europe is especially relevant, as they pose special challenges related to the historic preservation of facades and even interiors. It is thus the aim of the present research to compile a set of principles and technologies that can be used for the thermal retrofit of historic buildings.
title: Der Choralfreund oder Studien für das Choralspielen. 3ter Band : op. 110
Creators: name: Rinck, Johann C.
Publisher: name: Philipps-Universität Marburg
Year: 1834
Subjects: Music
Musik

description: Layoutgetreues Digitalisat der Ausg.: Mainz [u.a.] : Schott, 1834 Enth.: Choräle Nr. 30-41 Standort: Universitätsbibliothek Gießen Sign.: Mus 232 RINCK 1-7
Galactic modulation of extragalactic cosmic rays: Possible origin of the knee in the cosmic ray spectrum
Creators: name: Muraishi, Hiroshi
name: Yanagita, Shohei
name: Yoshida, Tatsuo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The existence of the spectral break around $\sim 3 \times 10^{15}$ eV in the cosmic ray spectrum (referred to as the `knee') is one of the biggest questions in cosmic ray astrophysics. At the same time, the origin of cosmic rays above the knee energies (between 10$^{15}$ and 10$^{18}$ eV) is also still unsettled. In this paper, we investigate how the hypothetical extragalactic CRs after modulated by the galactic wind contribute to the knee in the CR spectrum. We numerically calculate the modulated energy spectrum of the hypothetical cosmic rays coming into the galaxy from just outside of the ``galactic sphere'' where the galactic wind terminates. We show that the observed knee structure is reproduced well by a superposition of the modulated component and the galactic cosmic rays originating in supernova remnants.
description: Accepted for publication in Progress of Theoretical Physics
Turbulent Gas in Lensed Planck-selected Starbursts at redshifts 1-3.5
Creators: name: Harrington, Kevin C.
name: Weiss, Axel
name: Yun, Min S.
name: Magnelli, Benjamin
name: Sharon, C. E.
name: Leung, T. K. D.
name: Vishwas, A.
name: Wang, Q. D.
name: Jimenez-Andrade, E. F.
name: Frayer, D. T.
name: Liu, D.
name: Garcia, P.
name: Romano-Diaz, E.
name: Frye, B. L.
name: Jarugula, S.
name: Badescu, T.
name: Berman, D.
name: Dannerbauer, H.
name: Diaz-Sanchez, A.
name: Grassitelli, L.
name: Kamieneski, P.
name: Kim, W. J.
name: Kirkpatrick, A.
name: Lowenthal, J. D.
name: Messias, H.
name: Puschnig, J.
name: Stacey, G. J.
name: Torne, P.
name: Bertoldi, F.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Dusty star-forming galaxies at high redshift (1 < z < 3) represent the most intense star-forming regions in the Universe. Key aspects to these processes are the gas heating and cooling mechanisms. Although it is well known that these galaxies are gas-rich, little is known about the gas excitation conditions. Here we examine these processes in a sample of 24 strongly lensed star-forming galaxies identified by the \textit{Planck} satellite (LPs) at z ~ 1.1 - 3.5. We analyze 162 CO rotational transitions (ranging from Jupper = 1 - 12) and 37 atomic carbon fine-structure lines ([CI]) in order to characterize the physical conditions of the gas in sample of LPs. We simultaneously fit the CO and [CI] lines, and the dust continuum emission, using two different non-LTE, radiative transfer models. The first model represents a two component gas density, while the second assumes a turbulence driven log-normal gas density distribution. These LPs are among the most gas-rich, infrared (IR) luminous galaxies ever observed ($μ_{\rm L}$L$_{\rm IR(8-1000μm) } \sim 10^{13-14.6} $\Lsun; $< μ_{\rm L}$M$_{\rm ISM}> = 2.7 \pm 1.2 \times 10^{12}$ \Msun, with $μ_{\rm L} \sim 10-30$ the average lens magnification factor). Our results suggest that the turbulent ISM present in the LPs can be well-characterized by a high turbulent velocity dispersion ($ \sim 100 $ \kms) and gas kinetic temperature to dust temperature ratios $ \sim 2.5$, sustained on scales larger than a few kpc. We speculate that the average surface density of the molecular gas mass and IR luminosity $Σ_{\rm M_{\rm ISM}}$ $\sim 10^{3 - 4}$ \Msun pc$^{-2}$ and $Σ_{\rm L_{\rm IR}}$ $\sim 10^{11 - 12}$ \Lsun kpc$^{-2}$, arise from both stellar mechanical feedback and a steady momentum injection from the accretion of intergalactic gas.
description: 54 pages, 18 figures. Accepted for publication in The Astrophysical Journal (as of Oct. 30, 2020). Please feel free to view the supplementary figures here (which can later be found online in the ApJ after the full publication procedure): https://drive.google.com/drive/folders/1CN3rqlUDcNi5JSDH2GhFk_SLSlo10han?usp=sharing
Brockway, Allan R. / Rajeshakar, J. Paul (Hrsg.), New Religious Movements and the Churches
Creators: name: Müller, Wolfgang
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 37 Nr. 3 (1988): Ökumenische Rundschau, Band 37, Heft 3
Null Hypersurface Caustics, Closed Null Curves, and Super-Entropy
Creators: name: Noda, Sousuke
name: Ong, Yen Chin
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Recently it was discovered that null hypersurfaces can develop caustics outside the event horizon of super-entropic Kerr-AdS black holes, in contrast to the usual Kerr-AdS case. In this work we explore a few more examples of black hole spacetimes in which such exterior caustics can develop. If a closed null curve is present, e.g., in the case of Taub-NUT and the "transunital" Kerr-AdS spacetimes, then it coincides with a null hypersurface caustic (NHC) of a minimal separation parameter. Thus a spacetime on the verge of forming closed timelike curves could develop a caustic. Known examples of super-entropic black holes also have exterior NHC, although such spacetimes are free of closed null/timelike curves. Nevertheless the relationship between closed causal curves, NHC, and super-entropy is not straightforward. This is best illustrated with the BTZ black string, which for some choices of the warp factor in the extra dimension and the value of the charge, can be super-entropic. However, even those that are not super-entropic can admit NHC outside the horizon.
description: Improved the discussion on ultra-spinning Kerr-Sen-AdS Black Hole in Sec.III(A) with new figures
title: Der Choralfreund oder Studien für das Choralspielen. 4ter Band : op. 115
Creators: name: Rinck, Johann C.
Publisher: name: Philipps-Universität Marburg
Year: 1835
Subjects: Music
Musik

description: Layoutgetreues Digitalisat der Ausg.: Mainz [u.a.] : Schott, 1835 Exemplar der Universitätsbibliothek Gießen Sign.: Mus 232 RINCK 1-7
Moduli of McKay quiver representations I: the coherent component
Creators: name: Craw, Alastair
name: Maclagan, Diane
name: Thomas, Rekha R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Algebraic Geometry (math.AG)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics

description: For a finite abelian group G in GL(n,k), we describe the coherent component Y_theta of the moduli space M_theta of theta-stable McKay quiver representations. This is a not-necessarily-normal toric variety that admits a projective birational morphism to A^n/G obtained by variation of GIT quotient. As a special case, this gives a new construction of Nakamura's G-Hilbert scheme that avoids the (typically highly singular) Hilbert scheme of |G|-points in A^n. To conclude, we describe the toric fan of Y_theta and hence calculate the quiver representation corresponding to any point of Y_theta.
description: 22 pages, 5 figures. Final version, to appear in Proceedings of the LMS
Exploring the complexities of the practicum : case studies of two school advisors
Creators: name: Chin, Peter M.K.
Publisher: name: University of British Columbia
Year: 2009

description: This study investigates how school advisors, in a secondary-school science context, conceive of and enact their roles in working with student teachers. It describes the interactions between school advisors and student teachers in relation to their personal conceptions of teaching, learning, and the process of learning to teach. The study provides a better understanding of the practicum setting with particular attention to the school advisor's perspective. Detail-rich cases highlight a range of issues for school advisors as they enact their responsibilities in attending to the student teachers' learning. These cases poignantly depict the complexities of the school advisor/student teacher dynamic and the various tensions that arise when conflicts emerge as the practicum unfolds. There are three questions that guide this study: (1) How do teachers perceive their roles as school advisors?; (2) How do teachers enact their roles as school advisors, and what are the foci of the school advisors' work with student teachers?; and (3) How do student teachers perceive the role of the school advisors? The practicum is a context in which one person assists the other in learning (to teach) and for this reason the conceptual framework used for data analysis is a curriculum perspective. Two levels of curriculum are discussed; level one of the curriculum framework is meeting the needs of the students while level two is meeting the needs of the student teacher. Both levels must be attended to throughout the teaching practicum. Five thematic areas were identified: (a) the student teachers' learning, (b) the working relationship, (c) experiences outside of the classroom, (d) lesson planning, and (e) classroom management. This study makes a significant contribution to the research literature on teacher education. First, it focuses upon the school advisor's role within the practicum. Second, one of the two case studies that deteriorated to the point where a change of venues was in order, serves as a rare example of a less-than-ideal practicum experience. Third, the conceptual framework of regarding the practicum as curriculum provides a new perspective for gaining insights into the complexities of learning to teach.
title: Der Choralfreund oder Studien für das Choralspielen. 5ter Band : op. 107
Creators: name: Rinck, Johann C.
Publisher: name: Philipps-Universität Marburg
Year: 1836
Subjects: Music
Musik

description: Layoutgetreues Digitalisat der Ausg.: Mainz [u.a.] : Schott, 1836 Standort: Universitätsbibliothek Gießen Sign.: Mus 232 RINCK 1-7
Transverse and secondary voltages in BSCCO single crystals
Creators: name: Vad, K.
name: Meszaros, S.
name: Sas, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Multicontact configuration is one of the most powerful arrangements for electrical transport measurements applied to study vortex phase transition and vortex phase dimensionality in strongly anisotropic high-Tc superconducting materials. In this paper we present electrical transport measurements using a multiterminal configuration, which prove both the existence of guided vortex motion in BSCCO single crystals near the transition temperature and that secondary voltage in zero external magnetic field is induced by thermally activated vortex loop unbinding. The phase transition between the bound and unbound states of the vortex loops was found to be below the temperature where the phase coherence of the superconducting order parameter extends over the whole volume of the sample. We show experimentally that 3D/2D phase transition in vortex dimensionality is a length-scale-dependent layer decoupling process and takes place simultaneously with the 3D/2D phase transition in superconductivity at the same temperature.
description: 8 pages, 5 figures, to be published in Physica C
Quantum Monte Carlo study of an anharmonic Holstein model
Creators: name: Paleari, G.
name: Hébert, F.
name: Cohen-Stead, B.
name: Barros, K.
name: Scalettar, R. T.
name: Batrouni, G. G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the effects of anharmonicity on the physics of the Holstein model, which describes the coupling of itinerant fermions and localized quantum phonons, by introducing a quartic term in the phonon potential energy. We find that the presence of this anharmonic term reduces the extent of the charge density wave phase (CDW) at half-filling as well as the transition temperature to this phase. Doping away from half-filling, we observe a first order phase transition between the CDW and a homogeneous phase which is also present in the harmonic model. In addition, we study the evolution of the superconducting susceptibility in the doped region and show that anharmonicity can enhance the superconducting response.
Geometric Prequantization of the Moduli Space of the Vortex equations on a Riemann surface
Creators: name: Dey, Rukmini
Publisher: name: arXiv
Year: 2006
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The moduli space of solutions to the vortex equations on a Riemann surface are well known to have a symplectic (in fact Kähler) structure. We show this symplectic structure explictly and proceed to show a family of symplectic (in fact, Kähler) structures $Ω_{Ψ_0}$ on the moduli space, parametrised by $Ψ_0$, a section of a line bundle on the Riemann surface. Next we show that corresponding to these there is a family of prequantum line bundles ${\mathcal P}_{Ψ_0} $on the moduli space whose curvature is proportional to the symplectic forms $Ω_{Ψ_0}$.
description: 8 pages
title: Der Choralfreund oder Studien für das Choralspielen. 6ter Band : op. 119
Creators: name: Rinck, Johann C.
Publisher: name: Philipps-Universität Marburg
Year: 1837
Subjects: Music
Musik

description: Layoutgetreues Digitalisat der Ausg.: Mainz [u.a.] : Schott, 1837 Standort: Universitätsbibliothek Gießen Sign.: Mus 232 RINCK 1-7
Collisions of particles advected in random flows
Creators: name: Gustavsson, K.
name: Mehlig, B.
name: Wilkinson, M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: We consider collisions of particles advected in a fluid. As already pointed out by Smoluchowski [Z. f. physik. Chemie XCII, 129-168, (1917)], macroscopic motion of the fluid can significantly enhance the frequency of collisions between the suspended particles. This effect was invoked by Saffman and Turner [J. Fluid Mech. 1, 16-30, (1956)] to estimate collision rates of small water droplets in turbulent rain clouds, the macroscopic motion being caused by turbulence. Here we show that the Saffman-Turner theory is unsatisfactory because it describes an initial transient only. The reason for this failure is that the local flow in the vicinity of a particle is treated as if it were a steady hyperbolic flow, whereas in reality it must fluctuate. We derive exact expressions for the steady-state collision rate for particles suspended in rapidly fluctuating random flows and compute how this steady state is approached. For incompressible flows, the Saffman-Turner expression is an upper bound.
description: 24 pages, 3 figures
Schoneveld, Jacobus, Die Bibel in der israelischen Erziehung
Creators: name: Klein, Laurentius
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 37 Nr. 3 (1988): Ökumenische Rundschau, Band 37, Heft 3
Chiral Symmetry in Dirac Equation and its Effects on Neutrino Masses and Dark Matter
Creators: name: Watson, T. B.
name: Musielak, Z. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Physics (physics.gen-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Chiral symmetry is included into the Dirac equation using the irreducible representations of the Poincaré group. The symmetry introduces the chiral angle that specifies the chiral basis. It is shown that the correct identification of these basis allows explaining small masses of neutrinos and predicting a new candidate for Dark Matter massive particle.
description: 11 pages
Yewangoe, Andreas Anangguru, Theologia Crucis in Asia: Asian Christian Views on Suffering in the Face of overwhelming Poverty and multifaced Religiosity in Asia
Creators: name: Königsmann, Josef
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 37 Nr. 3 (1988): Ökumenische Rundschau, Band 37, Heft 3
Equity in the science classroom : assessing the attitudes of female science students towards alternative methods of assessment
Creators: name: Little, Diane E.
Publisher: name: University of British Columbia
Year: 2009

description: This study examines the attitudes of female high school science students towards alternative assessment strategies and probes the influence of alternative assessment on the students' attitudes towards science. During one school year, ninety-three Science 9 students were exposed to three different methods of alternative assessment (i.e. portfolio-based assessment, drama-based assessment, and practical lab tests) as well as traditional assessment strategies (i.e. multiple choice and openended tests). Student questionnaires, teacher interviews, and classroom observations were completed in order to ascertain the attitudes and reactions of the students to the alternative methods of assessment. The findings show that the students positively received the alternative methods of assessment. Students believed that these methods of assessment improved their connection with science, improved their ability to express themselves and their understanding of science, and made science less difficult and more enjoyable.
A Study of the Scintillation Induced by Alpha Particles and Gamma Rays in Liquid Xenon in an Electric Field
Creators: name: Dawson, J. V.
name: Howard, A. S.
name: Akimov, D.
name: Araujo, H.
name: Bewick, A.
name: Davidge, D. C. R.
name: Jones, W. G.
name: Joshi, M.
name: Lebedenko, V. N.
name: Liubarsky, I.
name: Quenby, J. J.
name: Rochester, G.
name: Shaul, D.
name: Sumner, T. J.
name: Walker, R. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Scintillation produced in liquid xenon by alpha particles and gamma rays has been studied as a function of applied electric field. For back scattered gamma rays with energy of about 200 keV, the number of scintillation photons was found to decrease by 64+/-2% with increasing field strength. Consequently, the pulse shape discrimination power between alpha particles and gamma rays is found to reduce with increasing field, but remaining non-zero at higher fields.
description: 15 pages, 12 figures, accepted by Nuclear Instruments and Methods in Physics Research A
Political identity in the United States and Iran: myths and foreign policy challenges
Creators: name: Kinch, Penelope Ann
Publisher: name: The Australian National University
Year: 2010
Subjects: subject: JZ1480.A57 I75 2010
subject: United States Foreign relations Iran
subject: Iran Foreign relations United States
subject: United States Politics and government
subject: Iran Politics and government

description: This thesis analyses the extent to which political identity creates myths and foreign policy challenges. The study addresses this question through an examination of the relationship between the Islamic Republic of Iran and the United States of America. The research adopts a constructivist theoretical standpoint in assessing the inputs of political identity and the ideational value of history and experience. A construction of the political identity of each nation individually forms the basis of the research, which then progresses to an analysis of key international incidents and issues as a representation of the manner in which political myth and foreign policy challenges are created and reproduced. The intersection of the political identities of the United States and Iran, in significant areas of international interest, is analysed in this research. In particular, Iran's nuclear program and the American response to this challenge is a central example, as is the interaction of the two states in the context of America's propagation of the 'War on Terror' in Afghanistan and Iraq. Iran's involvement in these conflicts has proven to be a defining factor in relations between the US and Iran. In addition, the role played by Israel as a key ally of the US in the Middle East, and an ideological enemy in the political identity of the Islamic Republic, is significant in comprehending the background to the US-Iran conflict. The processes of communication between the two nations and the prospects for change in the relationship are also a focus for review. The barriers to rapprochement are framed within the constructs of the political identity of the US and Iran. Analysing the conflict within this structure proposes a new approach to understanding a key international relationship.
On the precision of full-spectrum fitting of simple stellar populations. II. The dependence on star cluster mass in the wavelength range 0.3-5.0 $μ$m
Creators: name: Goudfrooij, Paul
name: Asa'd, Randa
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this second paper of a series on the accuracy and precision of the determination of age and metallicity of simple stellar populations (SSPs) by means of the full spectrum fitting technique, we study the influence of star cluster mass through stochastic fluctuations of the number of stars near the top of the stellar mass function, which dominate the flux in certain wavelength regimes depending on the age. We consider SSP models based on the Padova isochrones, spanning the age range 7.0 $\leq$ log (age/yr) $\leq$ 10.1. Simulated spectra of star clusters in the mass range $10^4 \leq M/M_{\odot} < 10^6$ are compared with SSP model spectra to determine best-fit ages and metallicities using a full-spectrum fitting routine in four wavelength regimes: the blue optical (0.35-0.70 $μ$m), the red optical (0.6-1.0 $μ$m), the near-IR (1.0-2.5 $μ$m), and the mid-IR (2.5-5.0 $μ$m). We compare the power of each wavelength regime in terms of both the overall precision of age and metallicity determination, and of its dependence on cluster mass. We also study the relevance of spectral resolution in this context by utilizing two different spectral libraries (BaSeL and BT-Settl). We highlight the power of the mid-IR regime in terms of identifying young massive clusters in dusty star forming regions in external galaxies. The spectra of the simulated star clusters and SSPs are made available online to enable follow-up studies by the community.
description: 27 pages (incl. 8-page Appendix), 31 figures, published by MNRAS. Note: as of Jan 8, 2021, the bulk of the concluding Summary section is missing in the published version at MNRAS. They have been notified. This arXiv version is complete. Model spectra are being made available through CDS at http://cdsarc.u-strasbg.fr/viz-bin/qcat?VI/157
Cold atom dynamics in non-Abelian gauge fields
Creators: name: Jacob, A.
name: Ohberg, P.
name: Juzeliunas, G.
name: Santos, L.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The dynamics of ultracold neutral atoms subject to a non-Abelian gauge field is investigated. In particular we analyze in detail a simple experimental scheme to achieve a constant, but non-Abelian gauge field, and discuss in the frame of this gauge field the non-Abelian Aharanov-Bohm effect. In the last part of this paper, we discuss intrinsic non-Abelian effects in the dynamics of cold atomic wavepackets.
description: 8 pages, 9 figures
Globular Clusters in NGC 4365: New K-band Imaging and a Reassessment of the Case for Intermediate-age Clusters
Creators: name: Larsen, S. S.
name: Brodie, J. P.
name: Strader, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the globular cluster (GC) system of the Virgo giant elliptical galaxy NGC 4365, using new wide-field VIK imaging. The GC colour distribution has (at least) two peaks, but the colours of the red GCs appear more strongly weighted towards intermediate colours compared to most other large ellipticals and the integrated galaxy light. The intermediate-color/red peak may itself be composed of two sub-populations, with clusters of intermediate colours more concentrated towards the centre of the galaxy than both the blue and red GCs. Nearly all intermediate-colour and red GCs in our sample show an offset towards red V-K and/or blue V-I colours compared to SSP models for old ages in a (V-K,V-I) diagram. This has in the past been interpreted as evidence for intermediate ages. We also combine our VIK data with previously published spectroscopy. The differences between observed and model colour-metallicity relations are consistent with the offsets observed in the two-colour diagram, with the metal-rich GCs being too red (by about 0.2 mag) in V-K and too blue (by about 0.05 mag) in V-I compared to the models at a given metallicity. These offsets cannot easily be explained as an effect of younger ages. We conclude that, while intermediate GC ages cannot be definitively ruled out, an alternative scenario is more likely whereby all the GCs are old but the relative number of intermediate-metallicity GCs is greater than typical for giant ellipticals. The main obstacle to reaching a definitive conclusion is the lack of robust calibrations of integrated spectral and photometric properties for stellar populations with near-solar metallicity. In any case, it is puzzling that the intermediate-colour GCs in NGC 4365 are not accompanied by a corresponding shift of the integrated galaxy light towards bluer colours.
description: 23 pages, including 20 figures and 5 tables. Accepted for publication in A&A
Bondi-Hoyle Accretion around the Non-rotating Black Hole in 4D Einstein-Gauss-Bonnet Gravity
Creators: name: Donmez, Orhan
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: In this paper, the numerical investigation of a Bondi-Hoyle accretion around a non-rotating black hole in a novel four dimensional Einstein-Gauss-Bonnet gravity is investigated by solving the general relativistic hydrodynamical equations using the high resolution shock capturing scheme. For this purpose, the accreated matter from the wind-accreating X-ray binaries falls towards the black hole from the far upstream side of the domain, suphersonically. We study the effects of Gauss-Bonnet coupling constant $α$ in 4D EGB gravity on the accreated matter and shock cones created in the downstream region in detail. The required time having the shock cone in downstream region is getting smaller for alpha > 0 while it is increasing for alpha < 0. It is found that increases in alpha leads violent oscillations inside the shock cone and increases the accretion efficiency. The violent oscillations would cause increase in the energy flux, temperature, and spectrum of X- rays. So the quasi-periodic oscillations (QPOs) are naturally produced inside the shock cone when -5 \leq alpha \leq 0.8. It is also confirmed that EGB black hole solution converges to the Schwarzschild one in general relativity when alpha \rightarrow 0. Besides, the negative coupling constants also give reasonable physical solutions and increase of alpha in negative directions suppresses the possible oscillation observed in the shock cone.
description: 9 pages, 10 figures, Resubmitted to EPJC after referee report
Curing inflationary degeneracies using reheating predictions and relic gravitational waves
Creators: name: Mishra, Swagat S.
name: Sahni, Varun
name: Starobinsky, Alexei A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is well known that the inflationary scenario often displays different sets of degeneracies in its predictions for CMB observables. These degeneracies usually arise either because multiple inflationary models predict similar values for the scalar spectral index $n_{_S}$ and the tensor-to-scalar ratio $r$, or because within the same model, the values of $\lbrace n_{_S}, r \rbrace$ are insensitive to some of the model parameters, making it difficult for CMB observations alone to constitute a unique probe of inflationary cosmology. We demonstrate that by taking into account constraints on the post-inflationary reheating parameters such as the duration of reheating $N_{_{\rm re}}$, its temperature $T_{_{\rm re}}$ and especially its equation of state (EOS), $w_{_{\rm re}}$, it is possible to break this degeneracy in certain classes of inflationary models where identical values of $\lbrace n_{_S}, r \rbrace$ can correspond to different reheating $w_{_{\rm re}}$. In particular, we show how reheating constraints can break inflationary degeneracies in the T-model and the E-model $α$-attractors. Non-canonical inflation is also studied. The relic gravitational wave (GW) spectrum provides us with another tool to break inflationary degeneracies. This is because the GW spectrum is sensitive to the post-inflationary EOS of the universe. Indeed a stiff EOS during reheating $(w_{_{\rm re}} > 1/3)$ gives rise to a small scale blue tilt in the spectral index $n_{_{\rm GW}} = \frac{d\log{Ω_{_{\rm GW}}}}{d\log{k}} > 0$, while a soft EOS $(w_{_{\rm re}} < 1/3)$ results in a red tilt. Relic GWs therefore provide us with valuable information about the post-inflationary epoch, and their spectrum can be used to cure inflationary degeneracies in $\lbrace n_{_S}, r\rbrace$.
description: 41 pages, 13 figures, some clarifications and additional references. Matches published version in JCAP
USING AUTHENTIC TEXTS IN ENGLISH LANGUAGE TEACHING
Creators: name: Solijonov, Mukhammadjon
name: Alisherova, Marjona
name: Muhiddinova, Gulshoda
name: Yoqubova, Durdona
Publisher: name: Zenodo
Year: 2024

description: The use of authentic texts, including literature, as an English as a Foreign Language (EFL) resource has gained wider currency in classrooms, notably in Europe and Asia, where this integration is being encouraged as linguists acknowledge the vital importance of lexical knowledge to foreign language acquisition. The adoption of communicative language teaching (CLT) methods, pointing to a shift away from teacher-centric models of language pedagogy, has also led to a greater emphasis being placed on the use of authentic texts, including literature, which has, in turn, given rise to debates regarding appropriate teaching techniques, methodology and text selection.
Loth, Heinrich, Vom Schlangenkult zur Christuskirche
Creators: name: Becken, Hans-Jürgen
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 37 Nr. 3 (1988): Ökumenische Rundschau, Band 37, Heft 3
Probing low-x QCD with cosmic neutrinos at the Pierre Auger Observatory
Creators: name: Anchordoqui, Luis A.
name: Cooper-Sarkar, Amanda M.
name: Hooper, Dan
name: Sarkar, Subir
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The sources of the observed ultra-high energy cosmic rays must also generate ultra-high energy neutrinos. Deep inelastic scattering of these neutrinos with nucleons on Earth probe center-of-mass energies $\sqrt{s} \sim 100$ TeV, well beyond those attainable at terrestrial colliders. By comparing the rates for two classes of observable events, any departure from the benchmark (unscreened perturbative QCD) neutrino-nucleon cross-section can be constrained. Using the projected sensitivity of the Pierre Auger Observatory to quasi-horizontal showers and Earth-skimming tau neutrinos, we show that a `Super-Auger' detector can thus provide an unique probe of strong interaction dynamics.
description: Accepted for publication in Phys Rev D; Details of the NLO neutrino-nucleon cross-section calculation available at: http://www-pnp.physics.ox.ac.uk/~cooper/neutrino.html