cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
EXPERIMENTAL MORAL PSYCHOLOGY AND ITS NORMATIVE IMPLICATIONS
Creators: name: BRUNI, TOMMASO
Publisher: name: Universit� degli Studi di Milano
Year: 2013

description: This thesis explores the relationships between experimental moral psychology and normative ethics. It specifically examines neuromoral theories, according to which a deeper understanding of the machinery for moral judgments could lead humans to make better moral judgments. In this thesis I use the widely discussed neuromoral theory by Joshua Greene as a case study. I first examine Greene?s descriptive claims in experimental moral psychology (Ch. 2). Then I review descriptive hypotheses concerning human moral cognition that are alternative to Greene?s and I conclude that the data available so far are not sufficient to rule all alternatives out. Theories in experimental moral psychology are presently underdetermined by the data. In Ch. 4 I critically delve into Greene?s neuromoral theory, highlighting its problematic points. Greene derives normative consequences from empirical results through the Argument from Morally Irrelevant Factors. This argument is not persuasive because it is not backed by an analysis of judgments about moral relevance of factors, such as ?Spatial distance is a moral irrelevant factor?, which are key premises in Greene?s argument. I argue that these judgments cannot be taken for granted because they are often deeply controversial. Greene also falls in a recurring problem, i.e. the so-called ?meta-normativity problem?. It is not clear what kind of normativity neuromoral theorists are referring to when they say that empirical science could help humans make better moral judgments. These shortcomings make Greene?s neuromoral theory unconvincing. However, Greene?s descriptive work has greatly contributed to further the understanding of the machinery for moral judgments.
Концепт європейської жінки формування та деконструкція.pdf
Creators: name: Farkosh, Oleksandra
Publisher: name: figshare
Year: 2022
Subjects: subject: 200205 Culture, Gender, Sexuality
subject: FOS: Other humanities
subject: 130308 Gender, Sexuality and Education
subject: FOS: Educational sciences
subject: Gender studies
subject: 169901 Gender Specific Studies
subject: FOS: Sociology
subject: Philosophy
subject: FOS: Philosophy, ethics and religion
subject: 220207 History and Philosophy of the Humanities

description: Проаналізовано філософії фемінізму: становлення феміністичної форми мислення, соціально-історичної еволюції гендера та досягнення окремих мислителів та мислительниць для подальшого становлення фемінізму. Крім цього, досліджено питання правої філософії націоналізму як патріархальної концепції.
Glueball dark matter, precisely
Creators: name: Carenza, Pierluca
name: Ferreira, Tassia
name: Pasechnik, Roman
name: Wang, Zhi-Wei
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We delve deeper into the potential composition of dark matter as stable scalar glueballs from a confining dark $SU(N)$ gauge theory, focusing on $N=\{3,4,5\}$. To predict the relic abundance of glueballs for the various gauge groups and scenarios of thermalization of the dark gluon gas, we employ a thermal effective theory that accounts for the strong-coupling dynamics in agreement with lattice simulations. We compare our methodology with previous works and discuss the possible sources of discrepancy. The results are encouraging and show that glueballs can account for the totality of dark matter in many unconstrained scenarios with a phase transition scale $20$ MeV$\lesssimΛ\lesssim10^{10}$ GeV, thus opening the possibility of exciting future studies.
description: 12 pages, 6 figures; update and generalization of arXiv:2207.13716. v2: 12 pages, 6 figures; minor changes to match the published version
Dispersion and fidelity in quantum interferometry
Creators: name: Simon, D. S.
name: Sergienko, A. V.
name: Bahder, T. B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We consider Mach-Zehnder and Hong-Ou-Mandel interferometers with nonclassical states of light as input, and study the effect that dispersion inside the interferometer has on the sensitivity of phase measurements. We study in detail a number of different one- and two-photon input states, including Fock, dual Fock, N00N states, and photon pairs from parametric downconversion. Assuming there is a phase shift $ϕ_0$ in one arm of the interferometer, we compute the probabilities of measurement outcomes as a function of $ϕ_0$, and then compute the Shannon mutual information between $ϕ_0$ and the measurements. This provides a means of quantitatively comparing the utility of various input states for determining the phase in the presence of dispersion. In addition, we consider a simplified model of parametric downconversion for which probabilities can be explicitly computed analytically, and which serves as a limiting case of the more realistic downconversion model.
description: 12 pages, 14 figures. Submitted to Physical Review A
Transform based algorithms for transient analysis of nonlinear networks
Creators: name: Agnew, David George
Publisher: name: University of British Columbia
Year: 2012

description: In this thesis, computer methods for the transient analysis of networks are investigated. Numerical transform techniques are developed to solve the differential equations a rising in network simulation. Extensions to permit inclusion of some nonlinear elements are considered. Efficient methods for implementing the techniques are developed. For the transform techniques, error estimates are derived. Using these estimates, algorithms for the automatic determination of solution parameters are developed. Advantages over other numerical transform and numerical integration techniques are revealed. For nonlinear networks, it is shown that use of a Newton-Raphson scheme for solving nonlinear algebraic equations is difficult when coupled with transform methods for solving differential equations. Instead, an alternative technique is developed. Steps which are easily generated, but which only approximate Newton-Raphson steps, are used. The implementation of the transform techniques and the nonlinear solution is considered. A program using a sparse tableau form of network equations is discussed. The program is in two sections. The first reads in the network descriptions, and writes a series of Fortran subroutines for performing the analysis efficiently. The subroutines must be compiled, and are used by the second part of the program to perform the actual analysis. Examples which illustrate the performance of the various techniques are presented.
Attenuation, dispersion and finite propagation speed in viscoelastic media
Creators: name: Seredynska, Malgorzata
name: Hanyga, Andrzej
Publisher: name: arXiv
Year: 2010
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 74D05, 74J05

description: It is shown that the dispersion and attenuation functions in a linear viscoelastic medium with a positive relaxation spectrum have a sublinear growth rate at very high frequencies. A local dispersion relation in parametric form is found. The exact limit between attenuation growth rates compatible and incompatible with finite propagation speed is found. Incompatibility of superlinear frequency dependence of attenuation with finite speed of propagation and with the assumption of positive relaxation spectrum is demonstrated.
description: 17 pp, 2 figs
Spectroscopy with the JWST Advanced Deep Extragalactic Survey (JADES) -- the NIRSpec/NIRCam GTO galaxy evolution project
Creators: name: Bunker, Andrew J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: I present an overview of the JWST Advanced Deep Extragalactic Survey (JADES), a joint program of the JWST/NIRCam and NIRSpec Guaranteed Time Observations (GTO) teams involving 950 hours of observation. We will target two well-studied fields with excellent supporting data (e.g., from HST-CANDELS): GOODS-North and South, including the Ultra Deep Field. The science goal of JADES is to chart galaxy evolution at z > 2, and potentially out to z > 10, using the rest-frame optical and near-IR though observations from $\approx$ 1 - 5 $μ$m. Multi-colour NIRCam imaging with 9 filters will enable photometric redshifts and the application of the Lyman break technique out to unprecedented distances. NIRSpec spectroscopy (with spectral resolving powers of R = 100, 1000 & 2700) will measure secure spectroscopic redshifts of the photometrically-selected population, as well as stellar continuum slopes in the UV rest-frame, and hence study the role of dust, stellar population age, and other effects. Measuring emission lines can constrain the dust extinction, star formation rates, metallicity, chemical abundances, ionization and excitation mechanism in high redshift galaxies. Coupling NIRCam and NIRSpec observations will determine stellar populations (age, star formation histories, abundances) of galaxies and provide the information to correct their broad-band spectral energy distribution for likely line contamination. Potentially we can search for signatures of Population III stars such as HeII. We can address the contribution of star-forming galaxies at z > 7 to reionization by determining the faint end slope of the luminosity function and investigating the escape fraction of ionizing photons by comparing the UV stellar continuum with the Balmer-line fluxes.
description: Appeared in proceedings of conference "Uncovering Early Galaxy Evolution in the ALMA and JWST Era", held in Viana do Castelo, Portugal, June 2019. Presentation on behalf of the NIRSpec Instrument Science Team and the JADES collaboration
Constraint Sampling Reinforcement Learning: Incorporating Expertise For Faster Learning
Creators: name: Mu, Tong
name: Theocharous, Georgios
name: Arbour, David
name: Brunskill, Emma
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Online reinforcement learning (RL) algorithms are often difficult to deploy in complex human-facing applications as they may learn slowly and have poor early performance. To address this, we introduce a practical algorithm for incorporating human insight to speed learning. Our algorithm, Constraint Sampling Reinforcement Learning (CSRL), incorporates prior domain knowledge as constraints/restrictions on the RL policy. It takes in multiple potential policy constraints to maintain robustness to misspecification of individual constraints while leveraging helpful ones to learn quickly. Given a base RL learning algorithm (ex. UCRL, DQN, Rainbow) we propose an upper confidence with elimination scheme that leverages the relationship between the constraints, and their observed performance, to adaptively switch among them. We instantiate our algorithm with DQN-type algorithms and UCRL as base algorithms, and evaluate our algorithm in four environments, including three simulators based on real data: recommendations, educational activity sequencing, and HIV treatment sequencing. In all cases, CSRL learns a good policy faster than baselines.
The unified history of the viscous accelerating universe and phase transitions
Creators: name: Astashenok, A. V.
name: Odintsov, S. D.
name: Tepliakov, A. S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We propose the unified description of the early acceleration (cosmological inflation) and the present epoch of so called "dark energy". The inflation can be described by cosmic fluid with van der Waals equation of state and with viscosity term. Viscosity leads to slow-roll inflation with the parameters such as the spectral index, and the tensor-to-scalar ratio in concordance with observational data. Our next step is to modify this equation of state (EoS) to describe the present accelerated expansion. One can add the term into EoS so that the contribution of which is small for inflation but crucial for late-time acceleration. The key point of the model is possible phase transition which leads to decrease of the viscosity. We show that proposed model describes observational data about standard "candles" and correct dependence of Hubble parameter from redshift. Moreover, we propose the possible scenario to resolve dark matter problem.
description: 14 pp., 7 figs., to appear in Nucl. Phys. B
Effect of Element Doping and Substitution on the Electronic Structure and Macroscopic Magnetic Properties of SmFe$_{12}$-based Compounds
Creators: name: Yoshioka, Takuya
name: Tsuchiura, Hiroki
name: Novák, Pavel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The mechanisms underlying the enhancement of magnetic anisotropies (MAs) of Sm ions, owing to valence electrons at the Sm site and the screened nuclear charges of ligands, are clarified using a detailed analysis of crystal fields (CF). In order to investigate the finite-temperature magnetic properties, we developed an effective spin model for SmFe$_{12}X$ ($X$=H, B, C, and N) and SmFe$_{11}M$ ($M$=Ti, V, and Co), where the magnetic moments, CF parameters, and exchange fields were determined by first-principle calculations. Using this model, the MA constants and magnetization curves at finite temperatures were investigated using a recently introduced analytical method [T. Yoshioka, H. Tsuchiura, and P. Novák, Phys. Rev. B {\bf 102}, 184410 (2020)]. In SmFe$_{12}X$, the doped light elements $X$ are assumed to be at the $2b$ site, and in SmFe$_{11}M$, the substitution site of Fe is systematically investigated for all inequivalent $8f$, $8i$, and $8j$ sites. We found that the first-order MA constant $K_1$ is increased by a factor of about two when hydrogen is doped to the $2b$ site and when Fe is replaced by Ti or V at the $8j$ site, owing to the attraction of the prolate $4f$ electron cloud to the screened positive charges of the surrounding ligand ions. We found that when Fe is replaced by Co, the MA increases at all temperatures regardless of the substitution site. The substituted Co attracts electrons, which reduces the electron density in the region from the Sm site to the empty $2b$ site. This causes the $4f$ electron cloud at the Sm site to be fixed along the $c$-axis direction, which improves the MA. The calculated temperature dependence of $K_1(T)$ and $K_2(T)$ in SmFe$_{11}$Co qualitatively reproduces the experimental results in the case of Sm(Co$_x$Fe$_{1-x}$)$_{12}$ for $x$=0.1 and 0.07.
description: Accepted for publication in Phys. Rev. B
READ_ME text file
Creators: name: Barbier, Garance
name: Rollo, Mario
name: Hall, Stephen
name: Klaminder, Jonatan
Publisher: name: figshare
Year: 2025
Subjects: classificationCode: 310301
subject: Behavioural ecology
classificationCode: 310901
subject: Animal behaviour
classificationCode: 310913
subject: Invertebrate biology

description: This file provides a detailed description of all supplementary materials associated with the study, including audio files, behavioral data, and a video. It outlines file formats, contents, and usage notes to guide replication or further analysis.
Investigating Galactic binary cluster candidates with Gaia EDR3
Creators: name: Angelo, M. S.
name: Santos, J. F. C.
name: Maia, F. F. S.
name: Corradi, W. J. B.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: A number of stellar open cluster (OC) pairs in the Milky Way occupy similar positions in the phase space (coordinates, parallax and proper motions) and therefore may constitute physically interacting systems. The characterization of such objects based on observational data is a fundamental step towards a proper understanding of their physical status and to investigate cluster pair formation in the Galaxy. In this work, we employed Gaia EDR3 data to investigate a set of 16 OCs distributed as seven stellar aggregates. We determined structural parameters and applied a decontamination technique that allowed to obtain unambiguous lists of member stars. The studied OCs span Galactocentric distances and ages in the ranges ~7 < $R_G$ (kpc) < ~11 and 7.3 <= log t <= 9.2. Eight OCs were found to constitute 4 gravitationally bound pairs (NGC5617-Trumpler22, Collinder394-NGC6716, Ruprecht100-Ruprecht101, NGC659-NGC663, the latter being a dynamically unevolved binary) and other 4 clusters constitute 2 interacting, but gravitationally unbound, pairs (King16-Berkeley4, NGC2383-NGC2384, the latter being a dissolving OC). Other 4 OCs (Dias1, Pismis19, Czernik20, NGC1857) seem not associated to any stellar aggregates. Apparently, clusters within bound and dynamically evolved pairs tend to present ratios of half-light to tidal radius larger than single clusters located at similar $R_G$, suggesting that mutual tidal interactions may possibly affect their structural parameters. Unbound or dynamically unevolved systems seems to present less noticeable signature of tidal forces on their structure. Moreover, the core radius seems more importantly correlated with the clusters' internal dynamical relaxation process.
description: Accepted for publication in MNRAS
Economical Quasi-Newton Self Consistent Field Solver
Creators: name: Slattery, Samuel A.
name: Surjuse, Kshitijkumar
name: Valeev, Edward F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present an efficient quasi-Newton orbital solver optimized to reduce the number of gradient (Fock matrix) evaluations. The solver optimizes orthogonal orbitals by sequences of unitary rotations generated by the (preconditioned) limited-memory Broyden-Fletcher-Goldfarb-Shanno (L-BFGS) algorithm incorporating trust-region step restriction. Low-rank structure of the inverse (approximate) Hessian is exploited not only in L-BFGS but also when solving the trust-region problem. The efficiency of the proposed ``Quasi-Newton Unitary Optimization with Trust-Region'' (QUOTR) method is compared to that of the standard Roothaan-Hall approach accelerated by the Direct Inversion of Iterative Subspace (DIIS), and other exact and approximate Newton solvers for mean-field (Hartree-Fock and Kohn-Sham) problems.
Sampling efficiency of transverse forces in dense liquids
Creators: name: Ghimenti, Federico
name: Berthier, Ludovic
name: Szamel, Grzegorz
name: van Wijland, Frédéric
Publisher: name: arXiv
Year: 2023
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Sampling the Boltzmann distribution using forces that violate detailed balance can be faster than with the equilibrium evolution, but the acceleration depends on the nature of the nonequilibrium drive and the physical situation. Here, we study the efficiency of forces transverse to energy gradients in dense liquids through a combination of techniques: Brownian dynamics simulations, exact infinite-dimensional calculation and a mode-coupling approximation. We find that the sampling speedup varies non-monotonically with temperature, and decreases as the system becomes more glassy. We characterize the interplay between the distance to equilibrium and the efficiency of transverse forces by means of odd transport coefficients.
High-performance evaluation of high angular momentum 4-center Gaussian integrals on modern accelerated processors
Creators: name: Asadchev, Andrey
name: Valeev, Edward F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: We present a high-performance evaluation method for 4-center 2-particle integrals over Gaussian atomic orbitals with high angular momenta ($l\geq4$) and arbitrary contraction degrees on graphical processing units (GPUs) and other accelerators. The implementation uses the matrix form of McMurchie-Davidson recurrences. Evaluation of the 4-center integrals over four $l=6$ ($i$) Gaussian AOs in the double precision (FP64) on an NVIDIA V100 GPU outperforms the reference implementation of the Obara-Saika recurrences (${\tt Libint}$) running on a single Intel Xeon core by more than a factor of 1000, easily exceeding the 73:1 ratio of the respective hardware peak FLOP rates while reaching almost 50\% of the V100 peak. The approach can be extended to support AOs with even higher angular momenta; for lower angular momenta ($l\leq3$) additional improvements will be reported elsewhere. The implementation is part of an open-source ${\tt LibintX}$ library feely available at https://github.com/ValeevGroup/LibintX.
description: 23 pages
Has the impact flux of small and large asteroids varied through time on Mars, the Earth and the Moon?
Creators: name: Lagain, Anthony
name: Kreslavsky, Mikhail
name: Baratoux, David
name: Liu, Yebo
name: Devillepoix, Hadrien
name: Bland, Philip
name: Benedix, Gretchen K.
name: Doucet, Luc S.
name: Servis, Konstantinos
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The impact flux over the last 3 Ga in the inner Solar System is commonly assumed to be constant through time. However, asteroid break-up events in the main belt may have been responsible for cratering spikes over the last ~2 Ga on the Earth-Moon system. We investigate here the possible variations of the size frequency distributions of impactors from the record of small craters of 521 martian impact craters larger than 20 km in diameter. We show that 49 craters (out of the 521) correspond to the complete crater population of this size formed over the last 600 Ma. Our results on Mars show that the flux of both small (> 5 m) and large asteroids (> 1 km) are coupled, does not vary between each other over the last 600 Ma. Existing data sets for large craters on the Earth and the Moon are analyzed and compared to our results on Mars. On Earth, we infer the formation location of a set of impact craters thanks to plate tectonic reconstruction and show that a cluster of craters formed during the Ordovician period, about 470 Ma ago, appears to be a preservation bias. On the Moon, the late increase seen in the crater age signal can be due to the uncertain calibration method used to date those impacts (i.e. rock abundance in lunar impact ejecta), and other calibrations are consistent with a constant crater production rate. We conclude to a coupling of the crater production rate between kilometer-size craters and down to ~100 m in diameter in the inner Solar System. This is consistent with the traditional model for delivering asteroids to planet-crossing orbits: the Yarkovsky effect slowly pushes the large debris from asteroid break-ups towards orbital resonances while smaller debris are grinded through collisional cascades. This suggests that the influence of past asteroid break-ups in the cratering rate for D > 100 m is limited or inexistent.
description: 45 pages, 8 figures, accepted in Earth and Planetary Science Letters, 28/12/2021
Fast Neural Network Inference on FPGAs for Triggering on Long-Lived Particles at Colliders
Creators: name: Coccaro, Andrea
name: Di Bello, Francesco Armando
name: Giagu, Stefano
name: Rambelli, Lucrezia
name: Stocchetti, Nicola
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: Machine Learning (cs.LG)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Experimental particle physics demands a sophisticated trigger and acquisition system capable to efficiently retain the collisions of interest for further investigation. Heterogeneous computing with the employment of FPGA cards may emerge as a trending technology for the triggering strategy of the upcoming high-luminosity program of the Large Hadron Collider at CERN. In this context, we present two machine-learning algorithms for selecting events where neutral long-lived particles decay within the detector volume studying their accuracy and inference time when accelerated on commercially available Xilinx FPGA accelerator cards. The inference time is also confronted with a CPU- and GPU-based hardware setup. The proposed new algorithms are proven efficient for the considered benchmark physics scenario and their accuracy is found to not degrade when accelerated on the FPGA cards. The results indicate that all tested architectures fit within the latency requirements of a second-level trigger farm and that exploiting accelerator technologies for real-time processing of particle-physics collisions is a promising research field that deserves additional investigations, in particular with machine-learning models with a large number of trainable parameters.
description: 12 pages, 10 figures, 2 tables
title: Timing and Spectral Evolution of the Magnetar 1E 1841-045 in Outburst
Creators: name: Younes, George
name: Lander, S. K.
name: Baring, M. G.
name: Bause, M. L.
name: Stewart, R.
name: Arzoumanian, Z.
name: Thi, H. Dinh
name: Enoto, T.
name: Gendreau, K.
name: Guver, T.
name: Harding, A. K.
name: Ho, W. C. G.
name: Hu, C.-P.
name: Kooten, A. Van
name: Kouveliotou, C.
name: Lalla, N. Di
name: McEwen, Alexander
name: Negro, M.
name: Ng, Mason
name: Palmer, D. M.
name: Spitler, L. G.
name: Wadiasingh, Zorawar
Publisher: name: Maryland Shared Open Access Repository
Year: 2025
Subjects: subject: Astrophysics - High Energy Astrophysical Phenomena

description: We present the timing and spectral analyses of the NICER, NuSTAR, and IXPE observations of the magnetar 1E 1841-045 covering 82 days following its August 2024 bursting activity as well as radio observations utilizing MeerKAT and Effelsberg. We supplement our study with a historical NuSTAR and all 2024 pre-outburst NICER observations. The outburst is marked by an X-ray flux enhancement of a factor 1.6 compared to the historical level, predominantly driven by a newly-formed non-thermal emitting component with a photon index �=1.5. This flux showed a 20% decay at the end of our monitoring campaign. The radio monitoring did not reveal any pulsed radio emission with an upper-limit of 20 mJy and 50 mJy ms on the mean flux density and single pulse fluence, respectively. We detect a spin-up glitch at outburst onset with a ??=6.1?10?8 Hz and a ???=?1.4?10?14 Hz s?1, consistent with the near-universality of this behavior among the continuously-monitored magnetars. Most intriguingly, the 1E 1841-045 2-10 keV pulse profile is markedly different compared to pre-outburst; it shows a new, narrow (0.1 cycles) peak that appears to shift towards merging with the main, persistently-present, pulse. This is the second case of pulse-peak migration observed in magnetars after SGR 1830?0645, and the two sources exhibit a similar rate of phase shift. This implies that this phenomenon is not unique and might present itself in the broader population. The newly-formed peak for 1E 1841-045 is non-thermal, with emission extending to ?20 keV, in contrast to the case of SGR 1830?0645. Our results are consistent with an untwisting magnetic field bundle with migration towards the magnetic pole, perhaps accompanied by plastic motion of the crust.
Why does the Sun's torsional oscillation begin before the sunspot cycle?
Creators: name: Chakraborty, Sagar
name: Choudhuri, Arnab Rai
name: Chatterjee, Piyali
Publisher: name: arXiv
Year: 2009
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Although the Sun's torsional oscillation is believed to be driven by the Lorentz force associated with the sunspot cycle, this oscillation begins 2--3 yr before the sunspot cycle. We provide a theoretical explanation of this with the help of a solar dynamo model having a meridional circulation penetrating slightly below the bottom of the convection zone, because only in such dynamo models the strong toroidal field forms a few years before the sunspot cycle and at a higher latitude.
description: 4 pages 3 figures. Unfortunately there were some errors in the figures which appeared in PRL. We are putting the corrected figures here. The text is the same as the text in PRL. An erratum is being sent to PRL pointing out the errors in the figures. We would like to thank Bidya Binay Karak for assistance in preparing the corrected figures
Wiedemann-Franz law in graphene in the presence of a weak magnetic field
Creators: name: Tu, Yi-Ting
name: Sarma, Sankar Das
Publisher: name: arXiv
Year: 2023
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The experimental work [J. Crossno et al., Science 351, 1058 (2016)], which reported the violation of the Wiedemann-Franz law in monolayer graphene characterized by a sharp peak of the Lorenz ratio at a finite temperature, has not been fully explained. Our previous work [Y.-T. Tu and S. Das Sarma, Phys. Rev. B 107, 085401 (2023)] provided a possible explanation through a Boltzmann-transport model with bipolar diffusion and an energy gap possibly induced by the substrate. In this paper, we extend our calculation to include a weak magnetic field perpendicular to the graphene layer, which is experimentally relevant, and may shed light on the possible violation or not of the Wiedemann-Franz law. We find that the magnetic field enhances the size of the peak of the Lorenz ratio but has little effect on its position, and that the transverse component of the Lorenz ratio can be either positive or negative depending on the parameter regime. In addition, we do the same calculation for bilayer graphene in the presence of a magnetic field and show the qualitative similarity with monolayer graphene. Our work should motivate magnetic-field-dependent experiments elucidating the nature of the charge carriers in graphene layers.
description: 7 pages, 5 figures
A simple method for measuring inequality
Creators: name: Sitthiyot, Thitithep
name: Holasut, Kanyarat
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: Methodology (stat.ME)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: To simultaneously overcome the limitation of the Gini index in that it is less sensitive to inequality at the tails of income distribution and the limitation of the inter-decile ratios that ignore inequality in the middle of income distribution, an inequality index is introduced. It comprises three indicators, namely, the Gini index, the income share held by the top 10%, and the income share held by the bottom 10%. The data from the World Bank database and the Organization for Economic Co-operation and Development Income Distribution Database between 2005 and 2015 are used to demonstrate how the inequality index works. The results show that it can distinguish income inequality among countries that share the same Gini index but have different income gaps between the top 10% and the bottom 10%. It could also distinguish income inequality among countries that have the same ratio of income share held by the top 10% to income share held by the bottom 10% but differ in the values of the Gini index. In addition, the inequality index could capture the dynamics where the Gini index of a country is stable over time but the ratio of income share of the top 10% to income share of the bottom 10% is increasing. Furthermore, the inequality index could be applied to other scientific disciplines as a measure of statistical heterogeneity and for size distributions of any non-negative quantities.
description: 9 pages, 2 tables, 7 figures
A Bayesian framework for estimating vaccine efficacy per infectious contact
Creators: name: Yang, Yang
name: Gilbert, Peter
name: Longini,, Ira M.
name: Halloran, M. Elizabeth
Publisher: name: arXiv
Year: 2009
Subjects: subject: Applications (stat.AP)
subject: FOS: Computer and information sciences

description: In vaccine studies for infectious diseases such as human immunodeficiency virus (HIV), the frequency and type of contacts between study participants and infectious sources are among the most informative risk factors, but are often not adequately adjusted for in standard analyses. Such adjustment can improve the assessment of vaccine efficacy as well as the assessment of risk factors. It can be attained by modeling transmission per contact with infectious sources. However, information about contacts that rely on self-reporting by study participants are subject to nontrivial measurement error in many studies. We develop a Bayesian hierarchical model fitted using Markov chain Monte Carlo (MCMC) sampling to estimate the vaccine efficacy controlled for exposure to infection, while adjusting for measurement error in contact-related factors. Our method is used to re-analyze two recent HIV vaccine studies, and the results are compared with the published primary analyses that used standard methods. The proposed method could also be used for other vaccines where contact information is collected, such as human papilloma virus vaccines.
description: Published in at http://dx.doi.org/10.1214/08-AOAS193 the Annals of Applied Statistics (http://www.imstat.org/aoas/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Comparing the Predictions of two Mixed Neutralino Dark Matter Models with the Recent CDMS II Candidate Events
Creators: name: Roy, D. P.
Publisher: name: arXiv
Year: 2010
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider two optimally mixed neutralino dark matter models, based on nonuniversal gaugino masses, which were recently proposed by us to achieve WMAP compatible relic density over a large part of the MSSM parameter space. We compare the resulting predictions for the spin-independent DM scattering cross-section with the recent CDMS II data, assuming the possibility of the two reported candidate events being signal events. For one model the predicted cross-section agrees with the putative signal over a small part of the parameter space, while for the other the agreement holds over the entire WMAP compatible parameter space of the model.
description: 8 pages with 2 figures, final version, to be published in Phys. Rev. D
Classical Drift in the Arnold Web Induces Quantum Delocalization Transition
Creators: name: Schmidt, Jan Robert
name: Bäcker, Arnd
name: Ketzmerick, Roland
Publisher: name: arXiv
Year: 2023
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate that quantum dynamical localization in the Arnold web of higher-dimensional Hamiltonian systems is destroyed by an intrinsic classical drift. Thus quantum wave packets and eigenstates may explore more of the intricate Arnold web than previously expected. Such a drift typically occurs, as resonance channels widen toward a large chaotic region or toward a junction with other resonance channels. If this drift is strong enough, we find that dynamical localization is destroyed. We establish that this drift-induced delocalization transition is universal and is described by a single transition parameter. Numerical verification is given using a time-periodically kicked Hamiltonian with a four-dimensional phase space.
Additional file 1 of Survey analysis of workplace violence among public healthcare workers in Yogyakarta, Indonesia
Creators: name: Pidada, Ida Bagus Gede Surya Putra
name: Wahab, Abdul
Publisher: name: figshare
Year: 2024
Subjects: Cell Biology
Neuroscience
Biotechnology
Biological Sciences not elsewhere classified
Science Policy

description: Supplementary Material 1.
Phase Diagrams for Spin-1 Bosons in an Optical Lattice
Creators: name: Chung, Ming-Chiang
name: Yip, Sungkit
Publisher: name: arXiv
Year: 2009
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: In this paper, the phase diagrams of a polar spin-1 Bose gas in a three-dimensional optical lattice with linear and quadratic Zeeman effects both at zero and finite temperatures are obtained within mean-field theory. The phase diagrams can be regrouped to two different parameter regimes depending on the magnitude of the quadratic Zeeman effect $Q$. For large $Q$, only a first-order phase transition from the nematic (NM) phase to the fully magnetic (FM) phase is found, while in the case of small $Q$, a first-order phase transition from the nematic phase to the partially magnetic (PM) phase, plus a second-order phase transition from the PM phase to the FM phase is obtained. If a net magnetization in the system exists, the first-order phase transition causes a coexistence of two phases and phase separation: for large $Q$, NM and FM phases and for small $Q$, NM and PM phases. The phase diagrams in terms of net magnetization are also obtained.
Tri-Hexagonal charge order in kagome metal CsV$_{3}$Sb$_{5}$ revealed by $^{121}$Sb NQR
Creators: name: Mu, Chao
name: Yin, Qiangwei
name: Tu, Zhijun
name: Gong, Chunsheng
name: Zheng, Ping
name: Lei, Hechang
name: Li, Zheng
name: Luo, Jianlin
Publisher: name: arXiv
Year: 2021
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report $^{121}$Sb nuclear quadrupole resonance (NQR) measurements on kagome superconductor CsV$_3$Sb$_5$ with $T_{\rm c}=2.5$ K. $^{121}$Sb NQR spectra split after a charge density wave (CDW) transition at $94$ K, which demonstrates a commensurate CDW state. The coexistence of the high temperature phase and the CDW phase between $91$ K and $94$ K manifests that it is a first order phase transition. The CDW order exhibits Tri-Hexagonal deformation with a lateral shift between the adjacent kagome layers, which is consistent with $2 \times 2 \times 2$ superlattice modulation. The superconducting state coexists with CDW order and shows a conventional s-wave behavior in the bulk state.
Statistical evaluation of the flux cross-calibration of the XMM-Newton EPIC cameras
Creators: name: Mateos, S.
name: Saxton, R. D.
name: Read, A. M.
name: Sembay, S.
Publisher: name: arXiv
Year: 2009
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: The second XMM-Newton serendipitous source catalogue, 2XMM, provides the ideal data base for performing a statistical evaluation of the flux cross-calibration of the XMM-Newton European Photon Imaging Cameras (EPIC). We aim to evaluate the status of the relative flux calibration of the EPIC cameras on board XMM-Newton (MOS1, MOS2, and pn) and investigate the dependence of the calibration on energy, position in the field of view of the X-ray detectors, and lifetime of the mission. We compiled the distribution of flux percentage differences for large samples of 'good quality' objects detected with at least two of the EPIC cameras. The mean offset of the fluxes and dispersion of the distributions was then found by Gaussian fitting. Count rate to flux conversion was performed with a fixed spectral model. The impact on the results of varying this model was investigated. Excellent agreement was found between the two EPIC MOS cameras to better than 4% from 0.2 keV to 12.0 keV. MOS cameras register 7-9% higher flux than pn below 4.5 keV and 10-13% flux excess above 4.5 keV. No evolution of the flux ratios is seen with time, except at energies below 0.5 keV, where we found a strong decrease in the MOS to pn flux ratio with time. This effect is known to be due to a gradually degrading MOS redistribution function. The flux ratios show some dependence on distance from the optical axis in the sense that the MOS to pn flux excess increases with off-axis angle. Furthermore, in the 4.5-12.0 keV band there is a strong dependence of the MOS to pn excess flux on the azimuthal-angle. These results strongly suggest that the calibration of the Reflection Grating Array (RGA) blocking factors is incorrect at high energies. Finally, we recommend ways to improve the calculation of fluxes in future versions of XMM-Newton source catalogues.
description: 11 pages, 10 figures, 3 tables. Abridged Abstract. Accepted for publication in Astronomy and Astrophysics
A Novel Device and System for Fall Detection Under the Shower
Creators: name: Bujnowski, Adam
name: Rajzer, Bartlomiej
name: Andrushevich, Aliaksei
name: Kaczmarek, Mariusz
name: Polinski, Artur
name: Wtorek, Jerzy
Publisher: name: Zenodo
Year: 2025
Subjects: Ambient Assisted Living (AAL)
bathroom safety
fall prevention
aging at home

description: In this paper, device construction and preliminary results for shower safety assistance are presented. The device allows monitoring of shower-taking persons without violating privacy and intimacy, while it has the ability to detect a persons entering and leaving the shower and detecting fall conditions. It allows better supervision of elders living independently at their locations.
description: + ID der Publikation: hslu_112381 + Art des Beitrages: Präsentation Konferenzpapier/Tagungsbeitrag + Sprache: Englisch + Letzte Aktualisierung: 2025-04-02 09:18:14
A simple method for estimating the Lorenz curve
Creators: name: Sitthiyot, Thitithep
name: Holasut, Kanyarat
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: Methodology (stat.ME)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences

description: Given many popular functional forms for the Lorenz curve do not have a closed-form expression for the Gini index and no study has utilized the observed Gini index to estimate parameter(s) associated with the corresponding parametric functional form, a simple method for estimating the Lorenz curve is introduced. It utilizes 3 indicators, namely, the Gini index and the income shares of the bottom and the top in order to calculate the values of parameters associated with the specified functional form which has a closed-form expression for the Gini index. No error minimization technique is required in order to estimate the Lorenz curve. The data on the Gini index and the income shares of 4 countries that have different level of income inequality, economic, sociological, and regional backgrounds from the United Nations University-World Income Inequality Database are used to illustrate how the simple method works. The overall results indicate that the estimated Lorenz curves fit the actual observations practically well. This simple method could be useful in the situation where the availability of data on income distribution is low. However, if more data on income distribution are available, this study shows that the specified functional form could be used to directly estimate the Lorenz curve. Moreover, the estimated values of the Gini index calculated based on the specified functional form are virtually identical to their actual observations.
description: 9 pages, 10 tables, 1 figure
The $D^{(2)}_{3}$ spin chain and its finite-size spectrum
Creators: name: Frahm, Holger
name: Gehrmann, Sascha
name: Nepomechie, Rafael I.
name: Retore, Ana L.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Using the analytic Bethe ansatz, we initiate a study of the scaling limit of the quasi-periodic $D^{(2)}_3$ spin chain. Supported by a detailed symmetry analysis, we determine the effective scaling dimensions of a large class of states in the parameter regime $γ\in (0,\fracπ{4})$. Besides two compact degrees of freedom, we identify two independent continuous components in the finite-size spectrum. The influence of large twist angles on the latter reveals also the presence of discrete states. This allows for a conjecture on the central charge of the conformal field theory describing the scaling limit of the lattice model.
description: v2: minor improvements e.g. typo fixing
Macroeconomic and financial management in an uncertain world: What can we learn from complexity science?
Creators: name: Sitthiyot, Thitithep
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Economics (econ.GN)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: General Finance (q-fin.GN)
subject: Methodology (stat.ME)
subject: FOS: Economics and business
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: This paper discusses serious drawbacks of existing knowledge in macroeconomics and finance in explaining and predicting economic and financial phenomena. Complexity science is proposed as an alternative approach to be used in order to better understand how economy and financial market work. This paper argues that understanding characteristics of complex system could greatly benefit financial analysts, financial regulators, as well as macroeconomic policy makers.
description: 37 pages
Energetic Formulation of Large-Deformation Poroelasticity
Creators: name: Karimi, Mina
name: Massoudi, Mehrdad
name: Walkington, Noel
name: Pozzi, Matteo
name: Dayal, Kaushik
Publisher: name: arXiv
Year: 2021
Subjects: subject: Analysis of PDEs (math.AP)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: The modeling of coupled fluid transport and deformation in a porous medium is essential to predict the various geomechanical process such as CO2 sequestration, hydraulic fracturing, and so on. Current applications of interest, for instance, that include fracturing or damage of the solid phase, require a nonlinear description of the large deformations that can occur. This paper presents a variational energy-based continuum mechanics framework to model large-deformation poroelasticity. The approach begins from the total free energy density that is additively composed of the free energy of the components. A variational procedure then provides the balance of momentum, fluid transport balance, and pressure relations. A numerical approach based on finite elements is applied to analyze the behavior of saturated and unsaturated porous media using a nonlinear constitutive model for the solid skeleton. Examples studied include the Terzaghi and Mandel problems; a gas-liquid phase-changing fluid; multiple immiscible gases; and unsaturated systems where we model injection of fluid into soil. The proposed variational approach can potentially have advantages for numerical methods as well as for combining with data-driven models in a Bayesian framework.
description: To appear in International Journal for Numerical and Analytical Methods in Geomechanics