cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A Novel Grid Based Dynamic Energy Efficient Routing Approach for Highly Dense Mobile Ad Hoc Networks
Creators: name: Baisakh
name: Mishra, Chinmayee
name: Pradhan, Abhilipsa
Publisher: name: arXiv
Year: 2013
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: We have proposed a novel Grid Based Dynamic Energy Efficient Routing (GBDEER) approach which is aimed to construct an energy efficient path from source to destination based on grid area, where each grid will have three deferent levels of transmission power.
Experimental study of integrable turbulence in shallow water
Creators: name: Redor, Ivan
name: Michallet, Hervé
name: Mordant, Nicolas
name: Barthélemy, Eric
Publisher: name: arXiv
Year: 2022
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We analyze a set of bidirectional wave experiments in a linear wave flume of which some are conducive to integrable turbulence. In all experiments the wavemaker forcing is sinusoidal and the wave motion is recorded by seven high-resolution side-looking cameras. The periodic scattering transform is implemented and power spectral densities computed to discriminate linear wave motion states from integrable turbulence and soliton gas. Values of the wavemaker forcing Ursell number and relative amplitude are required to be above some threshold values for the integral turbulence to occur. Despite the unavoidable slow damping, soliton gases achieve stationary states because of the continuous energy input by the wavemaker. The statistical properties are given in terms of probability density distribution, skewness and kurtosis. The route to integrable turbulence, by the disorganization of the wavemaker induced sinusoidal wave motion, depends on the non-linearity of the waves but equally on the amplitude amplification and reduction due to the wavemaker feedback on the wave field.
title: In der Zeit, da sich die Kirche von der Staatsgewalt unabhängig gemacht hatte, ist er lebendig verbrannt worden.; [1848]
title: Meine Herren! Ihre Entscheidung der Frage über Freiheit der Kirche wird über die Zukunft Deutschland's entscheiden ... Ihre Abstimmung wird der Nachwelt beweisen, wer unter ihnen ein volles, aufrichtiges u. herzhaftes Vertrauen in die Heilkunst der Wahrheit und der Freiheit hat ... : (vide sten. Bericht über die 68te Sitzung)
titleType: Subtitle
Creators: name: (:Unav)
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Text in deutscher Kurrentschrift
Interstitial-Boron Solution Strengthened WB$_{3+x}$
Creators: name: Cheng, Xiyue
name: Zhang, Wei
name: Chen, Xing-Qiu
name: Niu, Haiyang
name: Liu, Peitao
name: Du, Kui
name: Liu, Gang
name: Li, Dianzhong
name: Cheng, Hui-Ming
name: Ye, Hengqiang
name: Li, Yiyi
Publisher: name: arXiv
Year: 2013
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: By means of variable-composition evolutionary algorithm coupled with density functional theory and in combination with aberration-corrected high-resolution transmission electron microscopy experiments, we have studied and characterized the composition, structure and hardness properties of WB$_{3+x}$ ($x$ $
description: 5 pages, 5 figures
An Analytical Study of Covid-19 Dataset using Graph-Based Clustering Algorithms
Creators: name: Das, Mamata
name: Alphonse, P. J. A.
name: K, Selvakumar
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Corona VIrus Disease abbreviated as COVID-19 is a novel virus which is initially identified in Wuhan of China in December of 2019 and now this deadly disease has spread all over the world. According to World Health Organization (WHO), a total of 3,124,905 people died from 2019 to 2021, April. In this case, many methods, AI base techniques, and machine learning algorithms have been researched and are being used to save people from this pandemic. The SARS-CoV and the 2019-nCoV, SARS-CoV-2 virus invade our bodies, causing some differences in the structure of cell proteins. Protein-protein interaction (PPI) is an essential process in our cells and plays a very important role in the development of medicines and gives ideas about the disease. In this study, we performed clustering on PPI networks generated from 92 genes of the Covi-19 dataset. We have used three graph-based clustering algorithms to give intuition to the analysis of clusters.
description: 9 pages, 28 figures, Fifth International Conference on Smart Computing and Informatics (SCI 2021)
Electrodynamic response and local tunnelling spectroscopy of strongly disordered superconducting TiN films
Creators: name: Coumou, P. C. J. J.
name: Driessen, E. F. C.
name: Bueno, J.
name: Chapelier, C.
name: Klapwijk, T. M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We have studied the electrodynamic response of strongly disordered superconducting TiN films using microwave resonators, where the disordered superconductor is the resonating element in a high- quality superconducting environment of NbTiN. We describe the response assuming an effective pair-breaking mechanism modifying the density of states, and compare this to local tunnelling spectra obtained using scanning tunnelling spectroscopy. For the least disordered film (kFl = 8.7, Rs = 13 Ω), we find good agreement, whereas for the most disordered film (kFl = 0.82, Rs = 4.3 kΩ), there is a strong discrepancy, which signals the breakdown of a model based on uniform properties.
Chiral Bosonic Mott Insulator on the Frustrated Triangular Lattice
Creators: name: Zaletel, Michael P.
name: Parameswaran, S. A.
name: Rüegg, Andreas
name: Altman, Ehud
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the superfluid and insulating phases of interacting bosons on the triangular lattice with an inverted dispersion, corresponding to frustrated hopping between sites. The resulting single-particle dispersion has multiple minima at nonzero wavevectors in momentum space, in contrast to the unique zero-wavevector minimum of the unfrustrated problem. As a consequence, the superfluid phase is unstable against developing additonal chiral order that breaks time reversal (T) and parity (P) symmetries by forming a condensate at nonzero wavevector. We demonstrate that the loss of superfluidity can lead to an even more exotic phase, the chiral Mott insulator, with nontrivial current order that breaks T, P. These results are obtained via variational estimates, as well as a combination of bosonization and DMRG of triangular ladders, which taken together permit a fairly complete characterization of the phase diagram. We discuss the relevance of these phases to optical lattice experiments, as well as signatures of chiral symmetry breaking in time-of-flight images.
description: 4+epsilon pages, 3 figures (main text); 4.5 pages, 1 figure (supplementary material)
A CNN Based Approach for the Point-Light Photometric Stereo Problem
Creators: name: Logothetis, Fotios
name: Mecca, Roberto
name: Budvytis, Ignas
name: Cipolla, Roberto
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Reconstructing the 3D shape of an object using several images under different light sources is a very challenging task, especially when realistic assumptions such as light propagation and attenuation, perspective viewing geometry and specular light reflection are considered. Many of works tackling Photometric Stereo (PS) problems often relax most of the aforementioned assumptions. Especially they ignore specular reflection and global illumination effects. In this work, we propose a CNN-based approach capable of handling these realistic assumptions by leveraging recent improvements of deep neural networks for far-field Photometric Stereo and adapt them to the point light setup. We achieve this by employing an iterative procedure of point-light PS for shape estimation which has two main steps. Firstly we train a per-pixel CNN to predict surface normals from reflectance samples. Secondly, we compute the depth by integrating the normal field in order to iteratively estimate light directions and attenuation which is used to compensate the input images to compute reflectance samples for the next iteration. Our approach sigificantly outperforms the state-of-the-art on the DiLiGenT real world dataset. Furthermore, in order to measure the performance of our approach for near-field point-light source PS data, we introduce LUCES the first real-world 'dataset for near-fieLd point light soUrCe photomEtric Stereo' of 14 objects of different materials were the effects of point light sources and perspective viewing are a lot more significant. Our approach also outperforms the competition on this dataset as well. Data and test code are available at the project page.
description: arXiv admin note: text overlap with arXiv:2009.05792
Generative Perturbation Analysis for Probabilistic Black-Box Anomaly Attribution
Creators: name: Idé, Tsuyoshi
name: Abe, Naoki
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: We address the task of probabilistic anomaly attribution in the black-box regression setting, where the goal is to compute the probability distribution of the attribution score of each input variable, given an observed anomaly. The training dataset is assumed to be unavailable. This task differs from the standard XAI (explainable AI) scenario, since we wish to explain the anomalous deviation from a black-box prediction rather than the black-box model itself. We begin by showing that mainstream model-agnostic explanation methods, such as the Shapley values, are not suitable for this task because of their ``deviation-agnostic property.'' We then propose a novel framework for probabilistic anomaly attribution that allows us to not only compute attribution scores as the predictive mean but also quantify the uncertainty of those scores. This is done by considering a generative process for perturbations that counter-factually bring the observed anomalous observation back to normalcy. We introduce a variational Bayes algorithm for deriving the distributions of per variable attribution scores. To the best of our knowledge, this is the first probabilistic anomaly attribution framework that is free from being deviation-agnostic.
Evolutionary tracks of massive stars during formation
Creators: name: Smith, Michael D.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A model for massive stars is constructed by piecing together evolutionary algorithms for the protostellar structure, the environment, the inflow and the radiation feedback. We investigate specified accretion histories of constant, decelerating and accelerating forms and consider both hot and cold accretion, identified with spherical free-fall and disk accretion, respectively. Diagnostic tools for the interpretation of the phases of massive star formation and testing the evolutionary models are then developed. Evolutionary tracks able to fit Herschel Space Telescope data require the generated stars to be three to four times less massive than in previous interpretations, thus being consistent with clump star formation efficiencies of $10 -- 15\%$. However, for these cold Hershel clumps, the bolometric temperature is not a good diagnostic to differentiate between accretion models. We also find that neither spherical nor disk accretion can explain the high radio luminosities of many protostars. Nevertheless, we discover a solution in which the extreme ultraviolet flux needed to explain the radio emission is produced if the accretion flow is via free-fall on to hot spots covering less than $10\%$ of the surface area. Moreover, the protostar must be compact, and so has formed through cold accretion. We show that these conclusions are independent of the imposed accretion history. This suggests that massive stars form via gas accretion through disks which, in the phase before the star bloats, download their mass via magnetic flux tubes on to the protostar.
description: 17 pages, 16 figures, MNRAS, accepted for publication
Reduced back-action for phase sensitivity 10 times beyond the standard quantum limit
Creators: name: Bohnet, Justin G.
name: Cox, Kevin C.
name: Norcia, Matthew A.
name: Weiner, Joshua M.
name: Chen, Zilong
name: Thompson, James K.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Collective measurements can project a system into an entangled state with enhanced sensitivity for measuring a quantum phase, but measurement back-action has limited previous efforts to only modest improvements. Here we use a collective measurement to produce and directly observe, with no background subtraction, an entangled, spin-squeezed state with phase resolution improved in variance by a factor of 10.5(1.5), or 10.2(6) dB, compared to the initially unentangled ensemble of N = 4.8 x 10^5 87Rb atoms. The measurement uses a cavity-enhanced probe of an optical cycling transition to mitigate back-action associated with state-changing transitions induced by the probe. This work establishes collective measurements as a powerful technique for generating entanglement for precision measurement, with potential impacts in biological sensing, communication, navigation, and tests of fundamental physics.
description: 9 figures, 1 table
Geodesics for particles with negative energy in Kerr's metric
Creators: name: Vertogradov, Vitalii
Publisher: name: arXiv
Year: 2022
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: According to Penrose effect, particles with negative energy can exist in the ergospheres of rotating black holes. We analyze geodesics for such particles and show that there are no circular and elliptic orbits in the ergosphere of a rotating black hole. We also show that there are geodesics which begin and terminate at the singularity and present the conditions under which such geodesics do not begin and terminate at the singularity.
description: 8 pages
RCW36: characterizing the outcome of massive star formation
Creators: name: Ellerbroek, L. E.
name: Bik, A.
name: Kaper, L.
name: Maaskant, K. M.
name: Paalvast, M.
name: Tramper, F.
name: Sana, H.
name: Waters, L. B. F. M.
name: Balog, Z.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Massive stars play a dominant role in the process of clustered star formation, with their feedback into the molecular cloud through ionizing radiation, stellar winds and outflows. The formation process of massive stars is poorly constrained because of their scarcity, the short formation timescale and obscuration. By obtaining a census of the newly formed stellar population, the star formation history of the young cluster and the role of the massive stars within it can be unraveled. We aim to reconstruct the formation history of the young stellar population of the massive star-forming region RCW 36. We study several dozens of individual objects, both photometrically and spectroscopically, look for signs of multiple generations of young stars and investigate the role of the massive stars in this process. We obtain a census of the physical parameters and evolutionary status of the young stellar population. Using a combination of near-infrared photometry and spectroscopy we estimate ages and masses of individual objects. We identify the population of embedded young stellar objects (YSO) by their infrared colors and emission line spectra. RCW 36 harbors a stellar population of massive and intermediate-mass stars located around the center of the cluster. Class 0/I and II sources are found throughout the cluster. The central population has a median age of 1.1 +/- 0.6 Myr. Of the stars which could be classified, the most massive ones are situated in the center of the cluster. The central cluster is surrounded by filamentary cloud structures; within these, some embedded and accreting YSOs are found. Our age determination is consistent with the filamentary structures having been shaped by the ionizing radiation and stellar winds of the central massive stars. The formation of a new generation of stars is ongoing, as demonstrated by the presence of embedded protostellar clumps, and two exposed jets.
description: 18 pages, 10 figures, accepted for publication in Astronomy & Astrophysics
On the gauge dependence of scalar induced secondary gravitational waves during radiation and matter domination eras
Creators: name: Ali, Arshad
name: Hu, Ya-Peng
name: Sabir, Mudassar
name: Sui, Taotao
Publisher: name: arXiv
Year: 2023
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We revisit the vital issue of gauge dependence in the scalar-induced secondary gravitational waves (SIGWs), focusing on the radiation domination (RD) and matter domination (MD) eras. The energy density spectrum is the main physical observable in such induced gravitational waves. For various gauge choices, there has been a divergence in the energy density, $Ω_{\text{GW}}$, of SIGWs. We calculate SIGWs in different gauges to quantify this divergence to address the gauge-dependent problem. In our previous studies, we had found that the energy density diverges in the polynomial power of conformal time (e.g., $η^6$ in uniform density gauge). We try to fix this discrepancy by adding a counter-term that removes the fictitious terms in secondary tensor perturbations. We graphically compare the calculations in various gauges and also comment on the physical origin of the observed gauge dependence.
description: 19 pages, 6 figures, SCPMA in press
Orbifold equivalent potentials
Creators: name: Carqueville, Nils
name: Camacho, Ana Ros
name: Runkel, Ingo
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Algebra (math.QA)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: To a graded finite-rank matrix factorisation of the difference of two homogeneous potentials one can assign two numbers, the left and right quantum dimension. The existence of such a matrix factorisation with non-zero quantum dimensions defines an equivalence relation between potentials, giving rise to non-obvious equivalences of categories. Restricted to ADE singularities, the resulting equivalence classes of potentials are those of type {A_{d-1}} for d odd, {A_{d-1},D_{d/2+1}} for d even but not in {12,18,30}, and {A_{11}, D_7, E_6}, {A_{17}, D_{10}, E_7} and {A_{29}, D_{16}, E_8}. This is the result expected from two-dimensional rational conformal field theory, and it directly leads to new descriptions of and relations between the associated (derived) categories of matrix factorisations and Dynkin quiver representations.
description: 29 pages
title: Künstler in Corona-Zeiten
title: Gespräch mit Alina Rank, freie Schauspielerin, und Jan Freese, freier Bühnenbildner, Berlin
Creators: name: Möller, Heidi
name: Rank, Alina
name: Freese, Jan
Publisher: name: Universität Kassel
Year: 2020
Subjects: subject: Freie Künstlerszene
subject: Bewältigung der Pandemie
subject: kreative Krisenbewältigung
subject: free art scene
subject: coping with the pandemic
subject: creative crisis management
subject: 700
subject: Künstler
subject: Schauspielkunst
subject: Bühnenbildner
subject: Pandemie
subject: SARS-CoV-2
subject: Krise

description: Gefördert im Rahmen des Projekts DEAL
Detection of infrared light through stimulated four-wave mixing process
Creators: name: Zhang, Wei-Hang
name: Peng, Jing-Yuan
name: Li, En-Ze
name: Ye, Ying-Hao
name: Zeng, Lei
name: Ding, Dong-Sheng
name: Shi, Bao-Sen
Publisher: name: arXiv
Year: 2022
Subjects: subject: Optics (physics.optics)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: Infrared optical measurement has a wide range of applications in industry and science, but infrared light detectors suffer from high costs and inferior performance than visible light detectors. Four-wave mixing (FWM) process allows detection in the infrared range by detecting correlated visible light. We experimentally investigate the stimulated FWM process in a hot $^{85}$Rb atomic vapor cell, in which a weak infrared signal laser at $1530~$nm induces the FWM process and is amplified and converted into a strong FWM light at $780~$nm, the latter can be detected more easily. We find the optimized single- and two-photon detunings by studying the dependence of the frequency of input laser on the generated FWM light. What's more, the power gain increases rapidly as the signal intensity decreases, which is consistent with our theoretical analysis. As a result, the power gain can reach up to 500 at a signal laser power of $0.1~μ$W and the number of detected photons increased by a factor of 250. Finally, we experimentally prove that our amplification process can work in a broad band in the frequency domain by exploring the response rate of our stimulated FWM process.
description: 4 figures
Unconventional quantum criticality in the kicked rotor
Creators: name: Wang, Jiao
name: Tian, Chushun
name: Altland, Alexander
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Chaotic Dynamics (nlin.CD)
subject: FOS: Physical sciences

description: The quantum kicked rotor (QKR) driven by $d$ incommensurate frequencies realizes the universality class of $d$-dimensional disordered metals. For $d>3$, the system exhibits an Anderson metal-insulator transition which has been observed within the framework of an atom optics realization. However, the absence of genuine randomness in the QKR reflects in critical phenomena beyond those of the Anderson universality class. Specifically, the system shows strong sensitivity to the algebraic properties of its effective Planck constant $\tilde h \equiv 4π/q$. For integer $q$, the system may be in a globally integrable state, in a `super-metallic' configuration characterized by diverging response coefficients, Anderson localized, metallic, or exhibit transitions between these phases. We present numerical data for different $q$-values and effective dimensionalities, with the focus being on parameter configurations which may be accessible to experimental investigations.
description: 7 pages, 7 figures
Analysis of chemical abundances in planetary nebulae with [WC] central stars. II. Chemical abundances and the abundance discrepancy factor
Creators: name: Garcia-Rojas, J.
name: Peña, M.
name: Morisset, C.
name: Delgado-Inglada, G.
name: Mesa-Delgado, A.
name: Ruiz, M. T.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: (Abridged) We present the abundance analysis of 12 PNe ionized by [WC]-type stars and wels obtained from high-resolution spectrophotometric data. Our main aims are to determine the chemical composition of the PNe and to study the behaviour of the abundance discrepancy problem (ADF) in this type of planetary nebulae. The detection of a large number of optical recombination lines (ORLs) and collisionally excited lines (CELs) from different ions were presented previously. Most of the ORLs were reported for the first time in these PNe. Ionic abundances were derived from the available CELs and ORLs, using previously determined physical conditions. Based on these two sets of ionic abundances, we derived the total chemical abundances in the nebulae using suitable ICFs (when available). In spite of the [WC] nature of the central stars, moderate ADF(O^++), in the range from 1.2 to 4, were found for all the objects. We found that when the quality of the spectra is high enough the ORLs O^++/H^+ abundance ratios obtained from different multiplets excited mainly by recombination are very similar. Possible dependence of ADFs with some nebular characteristics were analysed, finding no correlation. Abundances derived from CELs were corrected by determining the t^2 parameter. O abundances for PNe, derived from ORLs, are in general larger than the solar abundance. We derived the C/O ratio from ORLs and N/O and alpha-element/O ratios from CELs and found that these PNe are, in average, N-and C-richer than the average of large PN samples. About half of our sample is C-rich (C/O>1). The alpha-elements grow in lockstep with O abundance. Comparing the N/O and C /O ratios with those derived from stellar evolution models, we estimate that about half of our PNe have progenitors with initial masses > 4 M_sun. No correlation was found between the stellar [WC]-type and the nebular abundances.
description: Accepted for publication in A&A. 15 Tables and 18 Figures. Language editing finished
title: Der Domgimpel; [1848]
title: Farbe: schwarz-weiß : Ihr habt jüngsthin gewiß einmal Gehört von dem schwarz-weißen Saal, Wo eine ganz Vogelschaar Stand um den schwarzen Königsaar, ...
titleType: Subtitle
Creators: name: Schalck, Ernst
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2018

description: Karikatur mit Monogramm: ESch
Inferring the Andromeda Galaxy's mass from its giant southern stream with Bayesian simulation sampling
Creators: name: Fardal, Mark A.
name: Weinberg, Martin D.
name: Babul, Arif
name: Irwin, Mike J.
name: Guhathakurta, Puragra
name: Gilbert, Karoline M.
name: Ferguson, Annette M. N.
name: Ibata, Rodrigo A.
name: Lewis, Geraint F.
name: Tanvir, Nial R.
name: Huxor, Avon P.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: M31 has a giant stream of stars extending far to the south and a great deal of other tidal debris in its halo, much of which is thought to be directly associated with the southern stream. We model this structure by means of Bayesian sampling of parameter space, where each sample uses an N-body simulation of a satellite disrupting in M31's potential. We combine constraints on stellar surface densities from the Isaac Newton Telescope survey of M31 with kinematic data and photometric distances. This combination of data tightly constrains the model, indicating a stellar mass at last pericentric passage of log(M_s / Msun) = 9.5+-0.1, comparable to the LMC. Any existing remnant of the satellite is expected to lie in the NE Shelf region beside M31's disk, at velocities more negative than M31's disk in this region. This rules out the prominent satellites M32 or NGC 205 as the progenitor, but an overdensity recently discovered in M31's NE disk sits at the edge of the progenitor locations found in the model. M31's virial mass is constrained in this model to be log(M200) = 12.3+-0.1, alleviating the previous tension between observational virial mass estimates and expectations from the general galactic population and the timing argument. The techniques used in this paper, which should be more generally applicable, are a powerful method of extracting physical inferences from observational data on tidal debris structures.
description: 27 pages, 10 figures. Accepted by MNRAS
Der Bund Evangelisch-Lutherischer Kirchen in der Schweiz und im Fürstentum Liechtenstein
Creators: name: Wepfer, Peter
Publisher: name: Lutherische Kirche in der Welt
Year: 1970

description: Lutherische Kirche in der Welt, Bd. 27 (1980): Lutherische Kirche in der Welt, Band 27
Validation of a new patient-reported outcome measure of balance recovery confidence (BRC) for community-dwelling older adults: a study protocol
Creators: name: Soh, Leng Hsien Shawn
name: Lane, Judith
name: Gleeson, Nigel
name: Xu, Tianma
name: Bte Abdul Rahman, Fahria
name: Yeh, Ting-Ting
name: Soon, Benjamin
name: Tan, Chee-Wee
Publisher: name: Singapore Institute of Technology
Year: 2023
Subjects: Physiotherapy

description: Background Patient-reported outcome measures (PROMs) provide clinicians a greater understanding of patients’ perceived ability in their physical performance. Existing PROMs on falls efficacy provide meaningful information about the perceived ability in older people to perform common activities of daily living without falling. However, the perceived ability to recover balance from a slip, a trip, or volitional movements has been inadequately assessed. Balance recovery confidence relates to the judgment of self-reactive ability. The scale of balance recovery confidence (BRC) is a new PROM that measures perceived balance recovery self-efficacy. The purpose of the study protocol is to describe the first psychometric evaluation of BRC’s measurement properties. Objective This study is a validation phase of a newly developed PROM conducted in Singapore. Methods Two hundred community-dwelling older adults, aged 65 years and older, will complete five self-reported instruments (BRC, Activities-specific Balance Confidence Scale, Falls Efficacy Scale-International, Late-Life Function and Disability Instrument-Function and Global Perceived Effect) and three performance measures (Hand strength dynamometer, 30-second Chair Stand, Mini BESTest). Classical test theory methods will assess acceptability, data completeness, targeting of the items, scaling assumptions, internal consistency reliability and construct validity. Factor analysis will establish unidimensionality. Rasch analysis will evaluate item fit, differential item functioning, response scale ordering, targeting of persons and items and the reliability. Results The findings from this study will be published in peer-reviewed journals and presented at national and international conferences in rehabilitation-specific context. Conclusions This is the first validation study of BRC. The study will give confidence among clinicians and researchers to use the BRC in fall management research and clinical practice.
First-passage probability estimation of high-dimensional nonlinear stochastic dynamic systems by a fractional moments-based mixture distribution approach
Creators: name: Ding, Chen
name: Dang, Chao
name: Valdebenito, Marcos A.
name: Faes, Matthias G. R.
name: Broggi, Matteo
name: Beer, Michael
Publisher: name: arXiv
Year: 2022
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: First-passage probability estimation of high-dimensional nonlinear stochastic systems is a significant task to be solved in many science and engineering fields, but remains still an open challenge. The present paper develops a novel approach, termed 'fractional moments-based mixture distribution', to address such challenge. This approach is implemented by capturing the extreme value distribution (EVD) of the system response with the concepts of fractional moments and mixture distribution. In our context, the fractional moment itself is by definition a high-dimensional integral with a complicated integrand. To efficiently compute the fractional moments, a parallel adaptive sampling scheme that allows for sample size extension is developed using the refined Latinized stratified sampling (RLSS). In this manner, both variance reduction and parallel computing are possible for evaluating the fractional moments. From the knowledge of low-order fractional moments, the EVD of interest is then expected to be reconstructed. Based on introducing an extended inverse Gaussian distribution and a log extended skew-normal distribution, one flexible mixture distribution model is proposed, where its fractional moments are derived in analytic form. By fitting a set of fractional moments, the EVD can be recovered via the proposed mixture model. Accordingly, the first-passage probabilities under different thresholds can be obtained from the recovered EVD straightforwardly. The performance of the proposed method is verified by three examples consisting of two test examples and one engineering problem.
Direct determination of exchange parameters in Cs2CuBr4 and Cs2CuCl4: high-field ESR studies
Creators: name: Zvyagin, S. A.
name: Kamenskyi, D.
name: Ozerov, M.
name: Wosnitza, J.
name: Ikeda, M.
name: Fujita, T.
name: Hagiwara, M.
name: Smirnov, A. I.
name: Soldatov, T. A.
name: Shapiro, A. Ya.
name: Krzystek, J.
name: Hu, R.
name: Ryu, H.
name: Petrovic, C.
name: Zhitomirsky, M. E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Spin-1/2 Heisenberg antiferromagnets Cs$_2$CuCl$_4$ and Cs$_2$CuBr$_4$ with distorted triangular-lattice structures are studied by means of electron spin resonance spectroscopy in magnetic fields up to the saturation field and above. In the magnetically saturated phase, quantum fluctuations are fully suppressed, and the spin dynamics is defined by ordinary magnons. This allows us to accurately describe the magnetic excitation spectra in both materials and, using the harmonic spin-wave theory, to determine their exchange parameters. The viability of the proposed method was proven by applying it to Cs$_2$CuCl$_4$, yielding $J/k_B=4.7(2)$ K, $J'/k_B=1.42(7)$ K [$J'/J\simeq 0.30$] and revealing good agreement with inelastic neutron-scattering results. For the isostructural Cs$_2$CuBr$_4$, we obtain $J/k_B=14.9(7)$ K, $J'/k_B=6.1(3)$ K, [$J'/J\simeq 0.41$], providing exact and conclusive information on the exchange couplings in this frustrated spin system.
description: Accepted for publication in Phys. Rev. Letters
Neutron scattering studies on ionic diffusion behaviors of superionic $α$-Cu$_{2-δ}$Se
Creators: name: Li, Lisi
name: Liu, Huili
name: Avdeev, Maxim
name: Yu, Dehong
name: Danilkin, Sergey
name: Wang, Meng
Publisher: name: arXiv
Year: 2022
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present studies on crystal structure and ionic diffusion behaviors of superionic Cu$_{2-δ}$Se ($δ$=0, 0.04, and 0.2) by utilizing neutron powder diffraction and quasi-elastic neutron scattering. In the superionic phase, the structural model with Cu ions occupying the Wyckoff sites of 8$c$ and 32$f$ provides the best description of the structure. As the content of Cu increasing in Cu$_{2-δ}$Se, the Cu occupancy increases on the 32$f$ site, but decreases on the 8$c$ site . Fitting to the quasi-elastic neutron scattering spectra reveals two diffusion modes, the localized diffusion between the 8$c$ and 32$f$ sites and the long-range diffusion between the adjacent 8$c$ sites using the 32$f$ site as a bypass, respectively. Between 430 and 650 K, we measured that the compound with more Cu content exhibits a larger long-range diffusion coefficient. Temperature in this range does not affect the long-range diffusion process obviously. Our results suggest the two diffusion modes cooperative and thus provide a microscopic understanding of the ionic diffusion of the Cu ions in superionic Cu$_{2-δ}$Se.
description: 6 pages, 3 figures
Optical fiber Sagnac interferometer for sensing scalar directional refraction: application to magnetochiral birefringence
Creators: name: Loas, Goulc'hen
name: Alouini, Mehdi
name: Vallet, Marc
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We present a set-up dedicated to the measurement of the small scalar directional anisotropies associated to the magnetochiral interaction. The apparatus, based on a polarization-independent fiber Sagnac interferometer, is optimized to be insensitive to circular anisotropies and to residual absorption. It can thus characterize samples of biological interests, for which the two enantiomers are not available and/or which present poor transmission. The signal-to-noise ratio is shown to be limited only by the source intensity noise, leading to a detection limit of Df = 500 nrad.Hz-1/2. It yields a limit on the magnetochiral index nMC < 4 10-13 T-1 at 1550 nm for the organic molecules tested.
description: 17 pages, 8 figures
Science through art: understanding climate complexity workshop presentations
Creators: name: Grist, Hannah
name: Polkova, Iuliia
name: Coath, Martin
Publisher: name: Zenodo
Year: 2020

description: In this Green Tease event, Creative Carbon Scotland worked in partnership with Blue-Action. The aim of the event was to bring together climate research scientists with arts practitioners, to discuss and explore the role of the arts for developing understanding of complex science for the public. These presentations by Hannah Grist, Iuliia Polkova and Martin Coath explore experiences of scientists engaging with stakeholder audiences around complex climate science. A summary report of the event can also be found at: https://www.creativecarbonscotland.com/green-tease-reflections-understanding-climate-complexity
Experimental reconstruction of work distribution and verification of fluctuation relations at the full quantum level
Creators: name: Batalhão, Tiago
name: Souza, Alexandre M.
name: Mazzola, Laura
name: Auccaise, Ruben
name: Oliveira, Ivan S.
name: Goold, John
name: De Chiara, Gabriele
name: Paternostro, Mauro
name: Serra, Roberto M.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Research on the out-of-equilibrium dynamics of quantum systems has so far produced important statements on the thermodynamics of small systems undergoing quantum mechanical evolutions. Key examples are provided by the Crooks and Jarzynski relations: taking into account fluctuations in non-equilibrium dynamics, such relations connect equilibrium properties of thermodynamical relevance with explicit non-equilibrium features. Although the experimental verification of such fundamental relations in the classical domain has encountered some success, their quantum mechanical version requires the assessment of the statistics of work performed by or onto an evolving quantum system, a step that has so far encountered considerable difficulties in its implementation due to the practical difficulty to perform reliable projective measurements of instantaneous energy states. In this paper, by exploiting a radical change in the characterization of the work distribution at the quantum level, we report the first experimental verification of the quantum Jarzynski identity and the Tasaki-Crooks relation following a quantum process implemented in a Nuclear Magnetic Resonance (NMR) system. Our experimental approach has enabled the full characterisation of the out-of-equilibrium dynamics of a quantum spin in a statistically significant way, thus embodying a key step towards the grounding of quantum-systems thermodynamics.
description: 10 pages, 8 figures, RevTeX4
The Genetic Structure and Landscape of Ireland Reveals Footprints of History
Creators: name: Gilbert, Edmund
Publisher: name: Royal College of Surgeons in Ireland
Year: 2020
Subjects: subject: 60499 Genetics not elsewhere classified
subject: FOS: Biological sciences

description: Ireland has a fascinating history of ancient kingdoms and more modern migrations. Furthermore, Ireland’s island location at the north-western edge of Europe makes it conducive to genetic homogeneity and isolation. The impact of historical migrations on the island is largely unknown, as is the extent of genetic structure in Ireland, despite successful efforts to characterise such genetic ancestry and structure with uniparental data, and efforts within the neighbouring British Isles.The description of the impact of this history will aid both the understand of history within Ireland, but aid genetic disease research as understanding the genetic structure of the island will inform on the distribution of rare disease causing variants within Ireland. Additionally, a genetic isolate also exists within Ireland, the Irish Travellers. The genetic origins of this population are similarly unclear, with limited blood group loci suggesting a broad Irish origin. This population has an increased burden of recessive genetic diseases, diseases that are often present, but more infrequent, within the wider settled Irish population. Understanding the population genetics of this community will help elucidate their genetic origins as well as aid understanding of the genetic structure that these disease causing alleles are found on and thus aid medical research in the community. In in Thesis I describe the recruitment and analysis of two cohorts; one of regional extended settled Irish ancestry (the “Irish DNA Atlas”), and another of extended Irish Traveller ancestry. In conjunction with reference datasets I demonstrate; i) subtle but thorough structure across the island of Ireland, ii) the footprints of previous migrations in the north of Ireland and the north of Britain, iii) extensive structure within the Irish Traveller population and an estimated time since isolation from the rest of Ireland, and finally iv) a catalogue of rare genetic variation within 1,582 Irish individuals the use of this variation in exploring genetic structure and ancestry. These results describe the genetic landscape of Ireland and structure with the Irish Travellers for the first time. This structure will aid the research of genetic disease variants within Ireland and the Irish Travellers. It additionally helps elucidate the impact of Irish history on the genomic landscape of the island, which may be of interest to historians.
Single event effect characterization of the mixed-signal ASIC developed for CCD camera in space use
Creators: name: Nakajima, Hiroshi
name: Fujikawa, Mari
name: Mori, Hideki
name: Kan, Hiroaki
name: Ueda, Shutaro
name: Kosugi, Hiroko
name: Anabuki, Naohisa
name: Hayashida, Kiyoshi
name: Tsunemi, Hiroshi
name: Doty, John P.
name: Ikeda, Hirokazu
name: Kitamura, Hisashi
name: Uchihori, Yukio
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences
subject: J.2
subject: 85-05

description: We present the single event effect (SEE) tolerance of a mixed-signal application-specific integrated circuit (ASIC) developed for a charge-coupled device camera onboard a future X-ray astronomical mission. We adopted proton and heavy ion beams at HIMAC/NIRS in Japan. The particles with high linear energy transfer (LET) of 57.9 MeV cm^{2}/mg is used to measure the single event latch-up (SEL) tolerance, which results in a sufficiently low cross-section of sigma_{SEL} < 4.2x10^{-11} cm^{2}/(IonxASIC). The single event upset (SEU) tolerance is estimated with various kinds of species with wide range of energy. Taking into account that a part of the protons creates recoiled heavy ions that has higher LET than that of the incident protons, we derived the probability of SEU event as a function of LET. Then the SEE event rate in a low-earth orbit is estimated considering a simulation result of LET spectrum. SEL rate is below once per 49 years, which satisfies the required latch-up tolerance. The upper limit of the SEU rate is derived to be 1.3x10^{-3}events/sec. Although the SEU events cannot be distinguished from the signals of X-ray photons from astronomical objects, the derived SEU rate is below 1.3% of expected non-X-ray background rate of the detector and hence these events should not be a major component of the instrumental background.
description: 6 pages, 5 figures, in press. Nuclear Instruments and Methods in Physics Research Section A, 2013
Edge Device Deployment of Multi-Tasking Network for Self-Driving Operations
Creators: name: Miraliev, Shokhrukh
name: Abdigapporov, Shakhboz
name: Alikhanov, Jumabek
name: Kakani, Vijay
name: Kim, Hakil
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A safe and robust autonomous driving system relies on accurate perception of the environment for application-oriented scenarios. This paper proposes deployment of the three most crucial tasks (i.e., object detection, drivable area segmentation and lane detection tasks) on embedded system for self-driving operations. To achieve this research objective, multi-tasking network is utilized with a simple encoder-decoder architecture. Comprehensive and extensive comparisons for two models based on different backbone networks are performed. All training experiments are performed on server while Nvidia Jetson Xavier NX is chosen as deployment device.
description: arXiv admin note: text overlap with arXiv:1908.08926 by other authors
Bulgeless Galaxies at Intermediate Redshift: Sample Selection, Colour Properties, and the Existence of Powerful AGN
Creators: name: Bizzocchi, Luca
name: Filho, Mercedes E.
name: Leonardo, Elvira
name: Grossi, Marco
name: Griffith, Roger L.
name: Afonso, José
name: Fernandes, Cristina
name: Retrê, João
name: Anton, Sonia
name: Bell, Eric F.
name: Brinchmann, Jarle
name: Henriques, Bruno
name: Lobo, Catarina
name: Messias, Hugo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a catalogue of bulgeless galaxies, which includes 19225 objects selected in four of the deepest, largest multi-wavelength datasets available -- COSMOS, AEGIS, GEMS and GOODS -- at intermediate redshift ($0.4 \leq z \leq 1.0$). The morphological classification was provided by the Advanced Camera for Surveys General Catalogue (ACS-GC), which used publicly available data obtained with the ACS instrument on the Hubble Space Telescope. Rest-frame photometric quantities were derived using kcorrect. We analyse the properties of the sample and the evolution of pure-disc systems with redshift. Very massive [$\log (M_\star/M_{\odot}) > 10.5$] bulgeless galaxies contribute to ~30% of the total galaxy population number density at $z \geq 0.7$, but their number density drops substantially with decreasing redshift. We show that only a negligible fraction of pure discs appear to be quiescent systems, and red sequence bulgeless galaxies show indications of dust-obscured star formation. X-ray catalogues were used to search for X-ray emission within our sample. After visual inspection and detailed parametric morphological fitting we identify 30 AGN that reside in galaxies without a classical bulge. The finding of such peculiar objects at intermediate redshift shows that while AGN growth in merger-free systems is a rare event (0.2% AGN hosts in this sample of bulgeless galaxies), it can indeed happen relatively early in the Universe history.
description: 49 pages, 13 figures