cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Brief History of Curvature
Creators: name: Caldwell, Robert R.
name: Gubser, Steven S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The trace of the stress-energy tensor of the cosmological fluid, proportional to the Ricci scalar curvature in general relativity, is determined on cosmic scales for times ranging from the inflationary epoch to the present day in the expanding Universe. The post-inflationary epoch and the thermal history of the relativistic fluid, in particular the QCD transition from asymptotic freedom to confinement and the electroweak phase transition, leave significant imprints on the scalar curvature. These imprints can be of either sign and are orders of magnitude larger than the values that would be obtained by naively extrapolating the pressureless matter of the present epoch back into the radiation-dominated epoch.
description: 13 pages, 8 figures
Non-symmetric finite networks: the two-point resistance
Creators: name: Cernanova, Viera
name: Brenkus, Juraj
Publisher: name: arXiv
Year: 2013
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 15A18, 94C12

description: An explicit formula for the resistance between two nodes in a network with a non-symmetric Laplacian matrix L is obtained. This is of great advantage e.g. in electronic circuit fault analysis, where non-linear systems have to be solved repeatedly. Analysis time can be greatly reduced by utilization of the obtained formula. The presented approach is based on the "mutual orthogonality" of the full system of left and right-hand eigenvectors of a diagonalizable matrix L. Some examples are given that demonstrate the accuracy of the approach on circuit networks.
title: Schlussbericht zum Vorhaben Thema des Verbundprojektes: Untersuchung zur Epidemiologie bodenbürtiger Viren in Triticale mit dem Ziel der Entwicklung von virusresistenten Sorten mit hohen Biomasseerträgen für die Biogas- und Ethanolgewinnung
Creators: name: Kastirr, Ute
name: Ziegler, Angelika
Publisher: name: Julius Kühn-Institut
Year: 2017

description: Berichte aus dem Julius Kühn-Institut 190, 2017
The possible ubiquity of energy injection in Gamma-Ray Burst afterglows
Creators: name: Panaitescu, A.
name: Vestrand, W. T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Since its launch in 2004, the Swift satellite has monitored the X-ray afterglows of several hundred Gamma-Ray Bursts, and revealed that their X-ray light-curves are more complex than previously thought, exhibiting up to three power-law segments. Energy injection into the relativistic blast-wave energizing the burst ambient medium has been proposed most often to be the reason for the X-ray afterglow complexity. We examine 117 light-curve breaks of 98 Swift X-ray afterglows, selected for their high-quality monitoring and well-constrained flux decay rates. Thirty percent of afterglows have a break that can be an adiabatic jet-break, in the sense that there is one variant of the forward-shock emission from a collimated outflow model that can account for both the pre- and post-break flux power-law decay indices, given the measured X-ray spectral slope. If allowance is made for a steady energy injection into the forward-shock, then another 56 percent of X-ray afterglows have a light-curve break that can be explained with a jet-break. The remaining 12 percent that are not jet-breaks, as well as the existence of two breaks in 19 afterglows (out of which only one can be a jet-break), suggest that some X-ray breaks arise from a sudden change in the rate at which energy is added to the blast-wave, and it may well be that a larger fraction of X-ray light-curve breaks are generated by that mechanism. To test the above two mechanisms for afterglow light-curve breaks, we derive comprehensive analytical results for the dynamics of outflows undergoing energy injection and for their light-curves, including closure relations for inverse-Compton afterglows and for the emission from spreading jets interacting with an wind-like ambient medium.
description: 14 pages
Medical Teacher’s first ChatGPT’s referencing hallucinations: Lessons for editors, reviewers, and teachers
Creators: name: Masters, Ken
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Students’ inappropriate use of ChatGPT is a concern. There is also, however, the potential for academics to use ChatGPT inappropriately. After explaining ChatGPT’s “hallucinations” regarding citing and referencing, this commentary illustrates the problem by describing the detection of the first known Medical Teacher submission using ChatGPT inappropriately, the lessons that can be drawn from it for journal editors, reviewers, and teachers, and then the wider implications if this problem is left unchecked.
Solving PDEs by Variational Physics-Informed Neural Networks: an a posteriori error analysis
Creators: name: Berrone, Stefano
name: Canuto, Claudio
name: Pintore, Moreno
Publisher: name: arXiv
Year: 2022
Subjects: subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: 35A01, 65L10, 65L12, 65L20, 65L70

description: We consider the discretization of elliptic boundary-value problems by variational physics-informed neural networks (VPINNs), in which test functions are continuous, piecewise linear functions on a triangulation of the domain. We define an a posteriori error estimator, made of a residual-type term, a loss-function term, and data oscillation terms. We prove that the estimator is both reliable and efficient in controlling the energy norm of the error between the exact and VPINN solutions. Numerical results are in excellent agreement with the theoretical predictions.
description: 14 pages, 3 figures
Exactly solvable spin-glass models with ferromagnetic couplings: the spherical multi-$p$-spin model in a self-induced field
Creators: name: Crisanti, Andrea
name: Leuzzi, Luca
Publisher: name: arXiv
Year: 2013
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report some results on the quenched disordered Spherical multi-$p$-Spin Model in presence of ferromagnetic couplings. In particular, we present the phase diagrams of some representative cases that schematically describe, in the mean-field approximation, the behavior of most known transitions in glassy materials, including dynamic arrest in super-cooled liquids, amorphous-amorphous transitions and spin-glass transitions. A simplified notation is introduced in order to compute systems properties in terms of an effective, self-induced, field encoding the whole ferromagnetic information.
description: 34 pages, 7 figures
AXBOROT-KOMUNIKATSIYALARINING BOSHLANG'ICH SINF O'QUVCHILARINI AXBOROT KOMPITENTLIGINI  RIVOJLANTIRISHDAGI AHAMIYATI
Creators: name: Qozoqboyeva, Xanifaxon
Publisher: name: Zenodo
Year: 2023

description: Bu maqoladan ko'zlangan asosiy maqsad axborot-komunikatsiyalari qaydarajada axbororlarni qabul qilishi va ular ustida musaqil fikrlay olishiga ta'sirini ifodalaydi.
Rescuing constraints on modified gravity using gravitational redshift in large-scale structure
Creators: name: Castello, Sveva
name: Grimm, Nastassia
name: Bonvin, Camille
Publisher: name: arXiv
Year: 2022
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: The distribution of galaxies provides an ideal laboratory to test for deviations from General Relativity. In particular, redshift-space distortions are commonly used to constrain modifications to the Poisson equation, which governs the strength of dark matter clustering. Here, we show that these constraints rely on the validity of the weak equivalence principle, which has never been tested for the dark matter component. Relaxing this restrictive assumption leads to modifications in the growth of structure that are fully degenerate with modifications induced by the Poisson equation. This in turns strongly degrades the constraining power of redshift-space distortions. Such degeneracies can however be broken and tight constraints on modified gravity can be recovered by measuring gravitational redshift from the galaxy distribution, an effect that will be detectable by the coming generation of large-scale structure surveys.
description: 8 pages, 3 figures; summary video at https://youtu.be/-xXmfaq0Zsg
A Herschel and APEX Census of the Reddest Sources in Orion: Searching for the Youngest Protostars
Creators: name: Stutz, Amelia M.
name: Tobin, John J.
name: Stanke, Thomas
name: Megeath, S. Thomas
name: Fischer, William J.
name: Robitaille, Thomas
name: Henning, Thomas
name: Ali, Babar
name: di Francesco, James
name: Furlan, Elise
name: Hartmann, Lee
name: Osorio, Mayra
name: Wilson, Thomas L.
name: Allen, Lori
name: Krause, Oliver
name: Manoj, P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We perform a census of the reddest, and potentially youngest, protostars in the Orion molecular clouds using data obtained with the PACS instrument onboard the Herschel Space Observatory and the LABOCA and SABOCA instruments on APEX as part of the Herschel Orion Protostar Survey (HOPS). A total of 55 new protostar candidates are detected at 70 um and 160 um that are either too faint (m24 > 7 mag) to be reliably classified as protostars or undetected in the Spitzer/MIPS 24 um band. We find that the 11 reddest protostar candidates with log (lambda F_lambda 70) / (lambda F_lambda 24) > 1.65 are free of contamination and can thus be reliably explained as protostars. The remaining 44 sources have less extreme 70/24 colors, fainter 70 um fluxes, and higher levels of contamination. Taking the previously known sample of Spitzer protostars and the new sample together, we find 18 sources that have log (lambda F_lambda 70) / (lambda F_lambda 24) > 1.65; we name these sources "PACS Bright Red sources", or PBRs. Our analysis reveals that the PBRs sample is composed of Class 0 like sources characterized by very red SEDs (T_bol < 45 K) and large values of sub-millimeter fluxes (L_smm/L_bol > 0.6%). Modified black-body fits to the SEDs provide lower limits to the envelope masses of 0.2 M_sun to 2 M_sun and luminosities of 0.7 L_sun to 10 L_sun. Based on these properties, and a comparison of the SEDs with radiative transfer models of protostars, we conclude that the PBRs are most likely extreme Class 0 objects distinguished by higher than typical envelope densities and hence, high mass infall rates.
description: Accepted to Apj; 36 pages, 25 figures, 8 tables
Non-constant bounded holomorphic functions of hyperbolic numbers - Candidates for hyperbolic activation functions
Creators: name: Hitzer, Eckhard
Publisher: name: arXiv
Year: 2013
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Rings and Algebras (math.RA)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: The Liouville theorem states that bounded holomorphic complex functions are necessarily constant. Holomorphic functions fulfill the socalled Cauchy-Riemann (CR) conditions. The CR conditions mean that a complex $z$-derivative is independent of the direction. Holomorphic functions are ideal for activation functions of complex neural networks, but the Liouville theorem makes them useless. Yet recently the use of hyperbolic numbers, lead to the construction of hyperbolic number neural networks. We will describe the Cauchy-Riemann conditions for hyperbolic numbers and show that there exists a new interesting type of bounded holomorphic functions of hyperbolic numbers, which are not constant. We give examples of such functions. They therefore substantially expand the available candidates for holomorphic activation functions for hyperbolic number neural networks. Keywords: Hyperbolic numbers, Liouville theorem, Cauchy-Riemann conditions, bounded holomorphic functions
description: 6 pages, 2 figures
Homogeneous Dislocation-Induced Rainbow Concentrating for Elastic Waves
Creators: name: Zhang, Zi-Dong
name: Yang, Shi-Li
name: Yan, Shi-Ling
name: Yu, Si-Yuan
name: Lu, Ming-Hui
name: Chen, Yan-Feng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Defects play a crucial role in the physical properties of crystals, whether for classical or quantum systems. For example, in photonic/phononic crystals, defects can serve as precise guidance and localization of classical electromagnetic or mechanical waves. Rainbow concentrating, a recently proposed exotic wave localization [Phys. Rev. Lett. 126, 113902 (2021)] exploits defects to enable the collection and frequency routing of weak signals in real space. In this paper, using a solid-state phononic crystal (PnC) plate, we experimentally verify this phenomenon by deliberately infusing a homogeneous graded dislocation, i.e., a line defect, into the PnC. Two PnCs separated by the defect will breed deterministic interface states along with the defect, offering rainbow trapping and concentrating for elastic waves. Our PnC-based rainbow trappers and concentrators are scalable and configurable, promising for advancing applications like energy harvesting, information processing, and acoustofluidic manipulating.
description: 10 Page, 7 figures
Extraction of ergotropy: free energy bound and application to open cycle engines
Creators: name: Biswas, Tanmoy
name: Łobejko, Marcin
name: Mazurek, Paweł
name: Jałowiecki, Konrad
name: Horodecki, Michał
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The second law of thermodynamics uses change in free energy of macroscopic systems to set a bound on performed work. Ergotropy plays a similar role in microscopic scenarios, and is defined as the maximum amount of energy that can be extracted from a system by a unitary operation. In this analysis, we quantify how much ergotropy can be induced on a system as a result of system's interaction with a thermal bath, with a perspective of using it as a source of work performed by microscopic machines. We provide the fundamental bound on the amount of ergotropy which can be extracted from environment in this way. The bound is expressed in terms of the non-equilibrium free energy difference and can be saturated in the limit of infinite dimension of the system's Hamiltonian. The ergotropy extraction process leading to this saturation is numerically analyzed for finite dimensional systems. Furthermore, we apply the idea of extraction of ergotropy from environment in a design of a new class of stroke heat engines, which we label open-cycle engines. Efficiency and work production of these machines can be completely optimized for systems of dimensions 2 and 3, and numerical analysis is provided for higher dimensions.
description: 31 pages, 6 figures. Comments welcome
Abundance, distribution, and origin of 60Fe in the solar protoplanetary disk
Creators: name: Tang, Haolan
name: Dauphas, Nicolas
Publisher: name: arXiv
Year: 2012
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Meteorites contain relict decay products of short-lived radionuclides that were present in the protoplanetary disk when asteroids and planets formed. Several studies reported a high abundance of 60Fe (t1/2=2.62+/-0.04 Myr) in chondrites (60Fe/56Fe~6*10-7), suggesting that planetary materials incorporated fresh products of stellar nucleosynthesis ejected by one or several massive stars that exploded in the vicinity of the newborn Sun. We measured 58Fe/54Fe and 60Ni/58Ni isotope ratios in whole rocks and constituents of differentiated achondrites (ureilites, aubrites, HEDs, and angrites), unequilibrated ordinary chondrites Semarkona (LL3.0) and NWA 5717 (ungrouped petrologic type 3.05), metal-rich carbonaceous chondrite Gujba (CBa), and several other meteorites (CV, EL H, LL chondrites; IIIAB, IVA, IVB iron meteorites). We derive from these measurements a much lower initial 60Fe/56Fe ratio of (11.5+/-2.6)*10-9 and conclude that 60Fe was homogeneously distributed among planetary bodies. This low ratio is consistent with derivation of 60Fe from galactic background (60Fe/56Fe=2.8*10-7 in the interstellar medium from gamma-ray observations) and can be reconciled with high 26Al/27Al=5*10-5 in chondrites if solar material was contaminated through winds by outer layers of one or several massive stars (e.g., a Wolf-Rayet star) rich in 26Al and poor in 60Fe. We present the first chronological application of the 60Fe-60Ni decay system to establish the time of core formation on Vesta at 3.7 (+2.5/-1.7) Myr after condensation of calcium-aluminum-rich inclusions (CAIs).
description: 32 pages, 7 figures, 3 tables
Spherically-symmetric model stellar atmospheres and limb darkening I: limb-darkening laws, gravity-darkening coefficients and angular diameter corrections for red giant stars
Creators: name: Neilson, Hilding R.
name: Lester, John B.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Model stellar atmospheres are fundamental tools for understanding stellar observations from interferometry, microlensing, eclipsing binaries and planetary transits. However, the calculations also include assumptions, such as the geometry of the model. We use intensity profiles computed for both plane-parallel and spherically symmetric model atmospheres to determine fitting coefficients in the BVRIHK, CoRot and Kepler wavebands for limb darkening using several different fitting laws, for gravity-darkening and for interferometric angular diameter corrections. Comparing predicted variables for each geometry, we find that the spherically symmetric model geometry leads to different predictions for surface gravities log g < 3. In particular, the most commonly used limb-darkening laws produce poor fits to the intensity profiles of spherically symmetric model atmospheres, which indicates the need for more sophisticated laws. Angular diameter corrections for spherically symmetric models range from 0.67 to 1, compared to the much smaller range from 0.95 to 1 for plane-parallel models.
description: 11 pages, 9 figures, accepted for publication in A&A, electronic tables will be available from CDS
Sharp Raman Anomalies and Broken Adiabaticity at a Pressure Induced Transition from Band to Topological Insulator in Sb2Se3
Creators: name: Bera, Achintya
name: Pal, Koushik
name: Muthu, D. V. S.
name: Sen, Somaditya
name: Guptasarma, Prasenjit
name: Waghmare, U. V.
name: Sood, A. K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The nontrivial electronic topology of a topological insulator is thus far known to display signatures in a robust metallic state at the surface. Here, we establish vibrational anomalies in Raman spectra of the bulk that signify changes in electronic topology: an E2 g phonon softens unusually and its linewidth exhibits an asymmetric peak at the pressure induced electronic topological transition (ETT) in Sb2Se3 crystal. Our first-principles calculations confirm the electronic transition from band to topological insulating state with reversal of parity of electronic bands passing through a metallic state at the ETT, but do not capture the phonon anomalies which involve breakdown of adiabatic approximation due to strongly coupled dynamics of phonons and electrons. Treating this within a four-band model of topological insulators, we elucidate how nonadiabatic renormalization of phonons constitutes readily measurable bulk signatures of an ETT, which will facilitate efforts to develop topological insulators by modifying a band insulator.
How planar superconductors cure their infrared divergences
Creators: name: Diamantini, M. C.
name: Trugenberger, C. A.
name: Vinokur, V. M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Planar superconductors, thin films with thickness comparable to the superconducting coherence length, differ crucially from their bulk counterparts. The Coulomb interaction is logarithmic up to distances exceeding typical sample sizes and the Anderson-Higgs mechanism is ineffective to screen the resulting infrared divergences of the resulting (2+1)-dimensional QED because the Pearl length is also typically larger than sample sizes. As a consequence, the system decomposes into superconducting droplets with the typical size of the coherence length. We show that the two possible phases of the system match the two known mechanisms by which (2+1)-dimensional QED cures its infrared divergences, either by generating a mixed topological Chern-Simons mass or by magnetic monopole instantons. The former is realized in superconductors, the latter governs mirror-dual superinsulators. Planar superconductors are thus described by a topological Chern-Simons gauge (TCSG) theory which replaces the Ginzburg-Landau model in two dimensions. In the TCSG model, the Higgs field is absent. Accordingly, in planar superconductors Abrikosov vortices do not form, and only Josephson vortices with no normal core can emerge.
Operation and first results of the NEXT-DEMO prototype using a silicon photomultiplier tracking array
Creators: name: The NEXT Collaboration
name: Álvarez, V.
name: Borges, F. I. G.
name: Cárcel, S.
name: Castel, J.
name: Cebrián, S.
name: Cervera, A.
name: Conde, C. A. N.
name: Dafni, T.
name: Dias, T. H. V. T.
name: Díaz, J.
name: Egorov, M.
name: Esteve, R.
name: Evtoukhovitch, P.
name: Fernandes, L. M. P.
name: Ferrario, P.
name: Ferreira, A. L.
name: Freitas, E. D. C.
name: Gehman, V. M.
name: Gil, A.
name: Goldschmidt, A.
name: Gómez, H.
name: Gómez-Cadenas, J. J.
name: González-Díaz, D.
name: Gutiérrez, R. M.
name: Hauptman, J.
name: Morata, J. A. Hernando
name: Herrera, D. C.
name: Iguaz, F. J.
name: Irastorza, I. G.
name: Jinete, M. A.
name: Labarga, L.
name: Laing, A.
name: Liubarsky, I.
name: Lopes, J. A. M.
name: Lorca, D.
name: Losada, M.
name: Luzón, G.
name: Marí, A.
name: Martín-Albo, J.
name: Martínez, A.
name: Martínez, G.
name: Miller, T.
name: Moiseenko, A.
name: Monrabal, F.
name: Monteiro, C. M. B.
name: Mora, F. J.
name: Moutinho, L. M.
name: Vidal, J. Muñoz
name: da Luz, H. Natal
name: Navarro, G.
name: Nebot-Guinot, M.
name: Nygren, D.
name: Oliveira, C. A. B.
name: Palma, R.
name: Pérez, J.
name: Aparicio, J. L. Pérez
name: Renner, J.
name: Ripoll, L.
name: Rodríguez, A.
name: Rodríguez, J.
name: Santos, F. P.
name: Santos, J. M. F. dos
name: Seguí, L.
name: Serra, L.
name: Shuman, D.
name: Simón, A.
name: Sofka, C.
name: Sorel, M.
name: Toledo, J. F.
name: Tomás, A.
name: Torrent, J.
name: Tsamalaidze, Z.
name: Veloso, J. F. C. A.
name: Villar, J. A.
name: Webb, R.
name: White, J. T.
name: Yahlali, N.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: NEXT-DEMO is a high-pressure xenon gas TPC which acts as a technological test-bed and demonstrator for the NEXT-100 neutrinoless double beta decay experiment. In its current configuration the apparatus fully implements the NEXT-100 design concept. This is an asymmetric TPC, with an energy plane made of photomultipliers and a tracking plane made of silicon photomultipliers (SiPM) coated with TPB. The detector in this new configuration has been used to reconstruct the characteristic signature of electrons in dense gas. Demonstrating the ability to identify the MIP and "blob" regions. Moreover, the SiPM tracking plane allows for the definition of a large fiducial region in which an excellent energy resolution of 1.82% FWHM at 511 keV has been measured (a value which extrapolates to 0.83% at the xenon Qbetabeta).
description: 20 pages, 17 figures. This version: corrected typos, updated acknowledgements. Ready for submission to the Journal of Instrumentation (JINST)
Re-enacting an eighteenth-century method for reinforcing musical expression
Creators: name: Skowroneck, Tilman
name: Bania, Maria
Publisher: name: ÍMPAR: Online Journal for Artistic Research
Year: 2023

description: This article demonstrates the artistic re-enactment of affective cultural practices in musical performance, with the goal of developing an increased understanding of the practices that we re-enacted, and the influence they can have on a performance. To re-enact a practice, an aesthetic mindset or conception means that they get embodied and experienced. In the research project explained here, we re-enacted the practice of evoking the music’s affections in oneself in order to arouse them in the listeners – a practice that formed a part of the eighteenth-century culture of sensibility. Through enacting the affective content of selected pieces of music, we wanted to explore how musicians and listeners interacted in a performance; the mutual influences between aesthetic mindsets and affective practices; and what difference these practices and mindsets make to the artistic effect in a musical performance. Our process included musical and emotional preparations, a video-taped re-enactment-in-performance with six participants (two players and four listeners), the writing of reflections, and analyzing them. The re-enactment highlighted how the various ways of viewing music and art in different cultures interact with how art is and was performed and experienced. The option to modify codes of performance, such as the behavior of everyone involved, the placement of people in the room, or the lighting, showed a potential to pinpoint and reflect upon aesthetic ideas about music and artistry. It opened up for choosing between ideas and conceptions we want to emphasize in a performance.
description: ÍMPAR: Online Journal for Artistic Research, vol. 6 n.º 1 (2022): IMPAR Online Journal for artistic research
Change-Management bei der Post CH Netz AG: Netzöffnung im Team Basel Bahnhof
Creators: name: Affolter, Stefanie
Publisher: name: Hochschule für Angewandte Psychologie FHNW
Year: 2023
Subjects: subject: Post CH Netz AG
subject: Change-Management
subject: Netzöffnung
subject: Experteninterview
subject: halbstrukturierte Interviews
subject: Emotion of Change Model
subject: Unsicherheiten
subject: Ängste
subject: Widerstände
subject: Chancen
subject: Inhaltsanalyse
subject: Handlungsempfehlungen
subject: 330 - Wirtschaft
subject: 150 - Psychologie

description: In der vorliegenden Bachelorarbeit werden für Post CH Netz AG vier Fragestellungen bearbeitet. Um den aktuellen Praxisstand zur Netzöffnung zu erfahren, wurden zwei Experteninterviews durchgeführt. Um zu erfahren, wo sich die Mitarbeitenden des Teams Basel Bahnhof im Emotion of Change Model befinden, welche Unsicherheiten, Ängste, Widerstände und Chancen im Team Basel Bahnhof durch die Netzöffnung vorhanden sind, wurden 13 halbstrukturierte Interviews, 12 vor Ort in den Filialen und eines online über Microsoft Teams, durchgeführt. Diese wurden transkribiert und mittels qualitativer Inhaltsanalyse ausgewertet. Die Ergebnisse zeigen auf, dass sich acht von 13 befragten Mitarbeitenden bereits bei der Akzeptanz der Netzöffnung im Emotion of Change Model befinden. Die zentralste Unsicherheit und Angst bei den Kundenberatenden und Teamleitenden ist der zunehmende Kundenrückgang. Im Team Basel Bahnhof gibt es zwei Widerstände, diese richten sich aber nicht gegen die Netzöffnung. Der grösste Unterstützungsbedarf der Kundenberatenden liegt bei den Schulungen. Und der grösste Unterstützungsbedarf der Teamleitenden liegt dabei, die Neugewinnung von Partnern für die regionalen Produkte zu vereinfachen. An Post CH Netz AG werden schlussendlich praxisnahe Handlungsempfehlungen im Umgang mit der Netzöffnung im Team Basel Bahnhof gegeben.
Preparation of $^{87}$Rb and $^{133}$Cs in the motional ground state of a single optical tweezer
Creators: name: Spence, S.
name: Brooks, R. V.
name: Ruttley, D. K.
name: Guttridge, A.
name: Cornish, Simon L.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: We report simultaneous Raman sideband cooling of a single $^{87}$Rb atom and a single $^{133}$Cs atom held in separate optical tweezers at 814\,nm and 938\,nm, respectively. Starting from outside the Lamb-Dicke regime, after 45\,ms of cooling we measure probabilities to occupy the three-dimensional motional ground state of 0.86$^{+0.03}_{-0.04}$ for Rb and 0.95$^{+0.03}_{-0.04}$ for Cs. Our setup overlaps the Raman laser beams used to cool Rb and Cs, reducing hardware requirements by sharing equipment along the same beam path. The cooling protocol is scalable, and we demonstrate cooling of single Rb atoms in an array of four tweezers. After motional ground-state cooling, a 938\,nm tweezer is translated to overlap with a 814\,nm tweezer so that a single Rb and a single Cs atom can be transferred into a common 1064\,nm trap. By minimising the heating during the merging and transfer, we prepare the atoms in the relative motional ground state with an efficiency of 0.81$^{+0.08}_{-0.08}$. This is a crucial step towards the formation of single RbCs molecules confined in optical tweezer arrays.
Optical phonon modes of wurtzite InP
Creators: name: Gadret, E. G.
name: Chiaramonte, T.
name: Cotta, M. A.
name: Iikawa, F.
name: Lima, M. M. de
name: Cantarero, A.
name: Madureira, J. R.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Optical vibration modes of InP nanowires in the wurtzite phase were investigated by Raman scattering spectroscopy. The wires were grown along the [0001] axis by the vapor-liquid-solid method. The A1(TO), E2h and E1(TO) phonon modes of the wurtzite symmetry were identified by using light linearly polarized along different directions in backscattering configuration. Additionally, forbidden longitudinal optical modes have also been observed. Furthermore, by applying an extended 11-parameter rigid-ion model the complete dispersion relations of InP in the wurtzite phase have been calculated, showing a good agreement with the Raman experimental data.
Einfluss von Unternehmen und Botschaften auf die Glaubwürdigkeit von Green Advertising Claims
Creators: name: Bürgi, Marisa
Publisher: name: Hochschule für Angewandte Psychologie FHNW
Year: 2023
Subjects: subject: Nachhaltigkeit
subject: Green Advertising
subject: Green Advertising Claim
subject: Glaubwürdigkeit
subject: Konsumierenden-Skepsis
subject: 330 - Wirtschaft

description: Die Relevanz von ökologisch nachhaltigen Produkten und Dienstleistungen steigt in der Gesellschaft stetig. Unternehmen möchten von dieser Entwicklung profitieren und stellen sich, im Vergleich zu ihren Handlungen gegenüber Konsumierenden teilweise nachhaltiger dar. Dieser Umstand ist auch der Agenturgruppe Wirz bewusst. Aufgrund der Zweckentfremdung nachhaltiger Botschaften (Green Advertising Claims) nehmen Konsumierende Unternehmen verstärkt als unglaubwürdig wahr. Die vorliegende Thesis befasst sich damit, die Glaubwürdigkeit von Green Advertising Claims zu verbessern. Mit einem Between-Group Versuchsdesign wurde in einer Online-Studie mit N = 219 Teilnehmenden untersucht, ob die Art der Botschaft (einseitig vs. zweiseitig) und die Glaubwürdigkeit eines Unternehmens (tief vs. hoch) einen Einfluss auf die Glaubwürdigkeit von Green Advertising Claims besitzen. Der Einfluss der Glaubwürdigkeit eines Unternehmens auf die Glaubwürdigkeit von Green Advertising Claims konnte sowohl bei einseitigen Botschaften (p = .032; r = 0.28) wie auch bei zweiseitigen Botschaften (p = .006; r = 0.32) bestätigt werden. Jedoch konnte der Einfluss der Art der Botschaft auf die Glaubwürdigkeit von Green Advertising Claims nicht nachgewiesen werden. Auch die Art der Botschaft erhöht den positiven Effekt der hohen Glaubwürdigkeit eines Unternehmens auf die Glaubwürdigkeit von Green Advertising Claims nicht. Die Ergebnisse stützen den Einfluss des hohen Umweltbewusstseins von Konsumierenden auf die Wahrnehmung von Green Advertising Claims nicht. Anhand der Erkenntnisse wurden Handlungsempfehlungen für die Praxispartnerin Wirz Group abgeleitet.
A Dynamic S-Procedure for Dynamic Uncertainties
Creators: name: Holicki, Tobias
name: Scherer, Carsten W.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics

description: We show how to compose robust stability tests for uncertain systems modeled as linear fractional representations and affected by various types of dynamic uncertainties. Our results are formulated in terms of linear matrix inequalities and rest on the recently established notion of finite-horizon integral quadratic constraints with a terminal cost. The construction of such constraints is motivated by an unconventional application of the S-procedure in the frequency domain with dynamic Lagrange multipliers. Our technical contribution reveals how this construction can be performed by dissipativity arguments in the time-domain and in a lossless fashion. This opens the way for generalizations to time-varying or hybrid systems.
Psychologische Sicherheit bei Berry - Eine Analyse und Konzeptualisierung zur Verbesserung und Sicherstellung der psychologischen Sicherheit bei Berry
Creators: name: Hasler, Sarah
Publisher: name: Hochschule für Angewandte Psychologie FHNW
Year: 2023
Subjects: subject: psychologische Sicherheit
subject: Teamarbeit
subject: Team
subject: Führung
subject: 150 - Psychologie

description: Die psychologische Sicherheit stellt ein zentraler Erfolgsfaktor für Teamarbeit dar. Psychologisch sichere Teams haben eine gemeinsame Überzeugung auf das Arbeitsklima. Die Mitarbeitenden können sich selbst sein, ohne das Risiko einer Bewertung oder Geringschätzung anderer zu fürchten. Mit einem vorab geführten Expert:inneninteview mit einer internen Person bei Berry und einer anschliessenden quantitativen Datenerhebung mit allen Mitarbeitenden wurde die psychologische Sicherheit bei Berry untersucht. Es wurde eine IST-Analyse vorgenommen, fördernde sowie hemmende Faktoren der psychologischen Sicherheit wie auch Verbesserungsvorschläge erfragt. Die Auswertung zeigt ein breites Bild an fördernden und hemmenden Faktoren sowie Verbesserungspotenziale, wobei die aktuelle psychologische Sicherheit bei Berry positiv bewertet wird. Aus der Analyse wurden folgende Verbesserungswünsche abgeleitet: Leben von New Work, Stärkere Führung, bessere Kommunikation, mehr Austausch und Wir-Gefühl im Team sowie mehr Unterstützung und eine klare Arbeitsverteilung.
title: «Fuzzy coding» oder die Möglichkeit zur Verarbeitungrangskalierter Variablen in der Korrespondenzanalyse am Beispiel Michelsberger Keramikdaten
Creators: name: Höhn, Birgit
name: Mattheußer, Elke
Publisher: name: University Library Heidelberg
Year: 2015

description: [nicht vorhanden]
description: [not available]
Thermodynamics of the metal-insulator transition in the extended Hubbard model from determinantal quantum Monte Carlo
Creators: name: Sushchyev, Alexander
name: Wessel, Stefan
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using finite-temperature determinantal quantum Monte Carlo simulations, we examine the thermodynamic properties of the extended Hubbard model on the half-filled square lattice in the Slater regime at intermediate coupling. We consider both the case of nearest-neighbor interactions and long-range Coulomb interactions, for coupling strengths in which the presence of non-local interactions still allows us to perform sign-problem free quantum Monte Carlo simulations. In particular, we assess a recently proposed scenario from variational calculations in terms of a first-order metal-insulator transition in this interaction regime.
description: 9 pages, 13 figures
Inverse two-phase nonlinear Stefan and Cauchy-Stefan problems: A phase-wise approach
Creators: name: Nanda, P.
name: Reddy, G.M.M.
name: VYNNYCKY, MICHAEL
Publisher: name: University of Limerick
Year: 2022
Subjects: Mathematical sciences

description: We develop a novel phase-wise sequential numerical approach based on the method of fundamental solutions (MFS) for inverse two-phase nonlinear Stefan and Cauchy-Stefan problems in one dimension (1D). By treating each phase independently, the inverse two-phase nonlinear Stefan problem splits into two single-phase inverse problems: an inverse nonlinear boundary identification problem and an inverse linear one-phase Stefan problem. Along with the reconstruction of boundary data, the simultaneous reconstruction of the boundary and initial data is also considered. Numerical investigations show the robustness and efficiency of the proposed method in reconstructing the data
The Diverse Properties of Type Icn Supernovae Point to Multiple Progenitor Channels
Creators: name: Pellegrino, C.
name: Howell, D. A.
name: Terreran, G.
name: Arcavi, I.
name: Bostroem, K. A.
name: Brown, P. J.
name: Burke, J.
name: Dong, Y.
name: Gilkis, A.
name: Hiramatsu, D.
name: Hosseinzadeh, G.
name: McCully, C.
name: Modjaz, M.
name: Newsome, M.
name: Gonzalez, E. Padilla
name: Pritchard, T. A.
name: Sand, D. J.
name: Valenti, S.
name: Williamson, M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a sample of Type Icn supernovae (SNe Icn), a newly-discovered class of transients characterized by their interaction with H- and He-poor circumstellar material (CSM). This sample is the largest collection of SNe Icn to date and includes observations of two published objects (SN 2019hgp and SN 2021csp) as well as two objects (SN 2019jc and SN 2021ckj) not yet published in the literature. The SNe Icn display a range of peak luminosities, rise times, and decline rates, as well as diverse late-time spectral features. To investigate their explosion and progenitor properties we fit their bolometric light curves to a semi-analytical model consisting of luminosity inputs from circumstellar interaction and radioactive decay of $^{56}$Ni. We infer low ejecta masses ($\lesssim$ 2 M$_\odot$) and $^{56}$Ni masses ($\lesssim$ 0.04 M$_\odot$) from the light curves, suggesting that normal stripped-envelope supernova (SESN) explosions within a dense CSM cannot be the underlying mechanism powering SNe Icn. Additionally, we find that an upper limit on the star formation rate density at the location of SN 2019jc lies at the lower end of a distribution of SESNe, in conflict with a massive star progenitor of this object. Based on the estimated ejecta masses, $^{56}$Ni masses, and explosion site properties, we favor a low-mass, ultra-stripped star as the progenitor of some SNe Icn. For others, we suggest that a Wolf-Rayet star progenitor may better explain their observed properties. This study demonstrates that multiple progenitor channels may produce SNe Icn and other interaction-powered transients.
description: 25 pages, 11 figures, published in ApJ
Surface Entanglement in Quantum Spin Networks
Creators: name: Zippilli, S.
name: Giampaolo, S. M.
name: Illuminati, F.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We study the ground-state entanglement in systems of spins forming the boundary of a quantum spin network in arbitrary geometries and dimensionality. We show that as long as they are weakly coupled to the bulk of the network, the surface spins are strongly entangled, even when distant and non directly interacting, thereby generalizing the phenomenon of long-distance entanglement occurring in quantum spin chains. Depending on the structure of the couplings between surface and bulk spins, we discuss in detail how the patterns of surface entanglement can range from multi-pair bipartite to fully multipartite. In the context of quantum information and communication, these results find immediate application to the implementation of quantum routers, that is devices able to distribute quantum correlations on demand among multiple network nodes.
description: 8 pages, 8 figures
Natural Supersymmetry and Implications for Higgs physics
Creators: name: Kribs, Graham D.
name: Martin, Adam
name: Menon, Arjun
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We re-analyze the LHC bounds on light third generation squarks in Natural Supersymmetry, where the sparticles have masses inversely proportional to their leading-log contributions to the electroweak symmetry breaking scale. Higgsinos are the lightest supersymmetric particles; top and bottom squarks are the next-to-lightest sparticles that decay into both neutral and charged Higgsinos with well-defined branching ratios determined by Yukawa couplings and kinematics. The Higgsinos are nearly degenerate in mass, once the bino and wino masses are taken to their natural (heavy) values. We consider three scenarios for the stop and sbottom masses: (I) $\tilde{t}_R$ is light, (II) $\tilde{t}_L$ and $\tilde{b}_L$ are light, and (III) $\tilde{t}_R$, $\tilde{t}_L$, and $\tilde{b}_L$ are light. Dedicated stop searches are currently sensitive to Scenarios II and III, but not Scenario I. Sbottom-motivated searches ($2 b + \rm{MET}$) impact both squark flavors due to $\tilde{t} \ra b \charp_1$ as well as $\tilde{b} \ra b \neut_{1,2}$, constraining Scenarios I and III with somewhat weaker constraints on Scenario II. The totality of these searches yield relatively strong constraints on Natural Supersymmetry. Two regions that remain are: (1) the "compressed wedge", where $(m_{\tilde{q}} - |μ|)/m_{\tilde{q}} \ll 1$, and (2) the "kinematic limit" region, where $m_{\tilde{q}} \gsim 600-750 GeV, at the kinematic limit of the LHC searches. We calculate the correlated predictions for Higgs physics, demonstrating that these regions lead to distinct predictions for the lightest Higgs couplings that are separable with $\simeq 10% measurements. We show that these conclusions remain largely unchanged once the MSSM is extended to the NMSSM in order to naturally obtain a large enough mass for the lightest Higgs boson consistent with LHC data.
description: 18 pages, 8 figures
VIRTUAL NUTQIY MULOQOTDA PARALINGVISTIK VOSITALARNING O'RNI
Creators: name: Isroilova, B.
Publisher: name: Zenodo
Year: 2023

description: Mazkur maqolada virtual muloqot jarayonida qo'llaniluvchi paralingvistik vositalar xususida fikr yuritiladi.
Circularly polarized scalar induced gravitational waves from the Chern-Simons modified gravity
Creators: name: Zhang, Fengge
name: Feng, Jia-Xi
name: Gao, Xian
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the scalar induced gravitational waves (SIGWs) in the Chern-Simons (CS) modified gravity during the radiation dominated era. The SIGWs are circularly polarized, which provide us a tool to test the possible parity violation in the early universe. We derive the semianalytic expressions to evaluate the fractional energy density of the SIGWs, $Ω_{\mathrm{GW}}$, which receives contributions from the general relativity (GR) and the correction due to the parity-violating term, respectively. We find that the degree of the circular polarization of the SIGWs can be as large as of order unity, although the contribution to $Ω_{\mathrm{GW}}$ from the CS term is at most of the same order as that from the GR.
description: 26 pages, 3 figures, references added, minor corrections
Association between free fatty acids and cardiometabolic risk in coronary artery disease: Results from the PROMISE study
Creators: name: Yuan, Deshan
Publisher: name: figshare
Year: 2023
Subjects: Endocrinology
Cardiology (incl. cardiovascular diseases)

description: Coronary artery disease (CAD) is the leading cause of mortality and morbidity in the world. Despite optimal secondary prevention strategies, treated patients still undergo high incidence of adverse ischemic events, suggesting that residual cardiovascular risk remains an important area of unmet clinical need. Cardiometabolic risk is an essential component of residual risk and becoming increasingly prevalent nowadays. Identification of potential biomarkers associated with cardiometabolic risk may help tailor individualized therapeutic strategies and thereby improve the quality of health care in clinical practice. Free fatty acids (FFA) are physiologically important energy substrates. However, abnormal elevation of FFA levels indicates metabolic dysfunctions and exerts deleterious effects through multiple pathogenic mechanisms.Based on a nationally prospective multicenter cohort of patients with established CAD, we found that FFA was independently associated with long-term all-cause death, cardiac death and adverse cardiovascular events. Moreover, the results remained consistent between patients with stable coronary artery disease and those with acute coronary syndrome. These findings support the utility of FFA as a reliable biomarker to identify individuals at high cardiometabolic risk who may need closer monitoring and aggressive management. Combined evaluation of FFA together with other traditional risk factors may help to refine cardiovascular risk stratification and guide shared-making decisions in clinical practice. To mitigate FFA-mediated cardiometabolic risk, comprehensive therapeutic strategies including lifestyle interventions may be warranted to corrected chronic over-nutrition and improve long-term clinical outcomes.
The origin of the 6.4 keV line emission and H$_2$ ionization in the diffuse molecular gas of the Galactic center region
Creators: name: Dogiel, V. A.
name: Chernyshov, D. O.
name: Tatischeff, V.
name: Cheng, K. -S.
name: Terrier, R.
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We investigate the origin of the diffuse 6.4 keV line emission recently detected by Suzaku and the source of H_2ionization in the diffuse molecular gas of the Galactic Center (GC) region. We show that Fe atoms and H_2 molecules in the diffuse interstellar medium of the GC are not ionized by the same particles. The Fe atoms are most likely ionized by X-ray photons emitted by Sgr A* during a previous period of flaring activity of the supermassive black hole. The measured longitudinal intensity distribution of the diffuse 6.4 keV line emission is best explained if the past activity of Sgr A$* lasted at least several hundred years and released a mean 2-100 keV luminosity > 10^38} erg s^{-1}. The H_2 molecules of the diffuse gas can not be ionized by photons from Sgr A*, because soft photons are strongly absorbed in the interstellar gas around the central black hole. The molecular hydrogen in the GC region is most likely ionized by low-energy cosmic rays, probably protons rather than electrons, whose contribution into the diffuse 6.4 keV line emission is negligible.
description: 5 pages, 4 figues, accepted for publication in the Astrophysical Journal Letters