cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Revisiting semileptonic decays of $Λ_{b(c)}$ supported by baryon spectroscopy
Creators: name: Li, Yu-Shuai
name: Liu, Xiang
name: Yu, Fu-Sheng
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The semileptonic decays of $Λ_{b}\toΛ_{c}^{(*)}\ellν_\ell$ and $Λ_{c}\toΛ^{(*)}\ellν_\ell$ are studied in the light-front quark model in this work. Instead of the quark-diquark approximation, we use the three-body wave functions obtained by baryon spectroscopy. The ground states $(1/2^{+})$, the $λ$-mode orbital excited states $(1/2^{-})$, and the first radial excited states $(1/2^{+})$ of $Λ_{(c)}^{(*)}$ are considered. The discussions are given for the form factors, partial widths, branching fractions, leptonic forward-backward asymmetries, hadron polarizations, lepton polarizations, and the lepton flavor universalities. Our results are useful for the inputs of heavy baryon decays and understanding the baryon structures, and helpful for experimental measurements.
description: 17 pages, 9 tables and 6 figures
WildGait: Learning Gait Representations from Raw Surveillance Streams
Creators: name: Cosma, Adrian
name: Radoi, Emilian
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences
subject: I.2.10
subject: 68T07

description: The use of gait for person identification has important advantages such as being non-invasive, unobtrusive, not requiring cooperation and being less likely to be obscured compared to other biometrics. Existing methods for gait recognition require cooperative gait scenarios, in which a single person is walking multiple times in a straight line in front of a camera. We aim to address the challenges of real-world scenarios in which camera feeds capture multiple people, who in most cases pass in front of the camera only once. We address privacy concerns by using only motion information of walking individuals, with no identifiable appearance-based information. As such, we propose a novel weakly supervised learning framework, WildGait, which consists of training a Spatio-Temporal Graph Convolutional Network on a large number of automatically annotated skeleton sequences obtained from raw, real-world, surveillance streams to learn useful gait signatures. We collected the training data and compiled the largest dataset of walking skeletons called Uncooperative Wild Gait, containing over 38k tracklets of anonymized walking 2D skeletons. We release the dataset for public use. Our results show that, with fine-tuning, we surpass the current state-of-the-art pose-based gait recognition solutions. Our proposed method is reliable in training gait recognition methods in unconstrained environments, especially in settings with scarce amounts of annotated data.
description: 9 pages, 7 figures, 5 Tables
On the Tau flavor of the cosmic neutrino flux
Creators: name: Farzan, Yasaman
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Observation of high energy cosmic neutrinos by ICECUBE has ushered in a new era in exploring both cosmos and new physics beyond the Standard Model (SM). In the standard picture, although mostly $ν_μ$ and $ν_e$ are produced in the source, oscillation will produce $ν_τ$ {\it en route}. Certain beyond SM scenarios, like interaction with ultralight DM can alter this picture. Thus, the flavor composition of the cosmic neutrino flux can open up the possibility of exploring certain beyond the SM scenarios that are inaccessible otherwise. We show that the $τ$ flavor holds a special place among the neutrino flavors in elucidating new physics. Interpreting the two anomalous events observed by ANITA as $ν_τ$ events makes the tau flavor even more intriguing. We study how the detection of the two tau events by ICECUBE constrains the interaction of the neutrinos with ultralight dark matter and discuss the implications of this interaction for even higher energy cosmic neutrinos detectable by future radio telescopes such as ARA, ARIANNA and GRAND. We also revisit the $3+1$ neutrino scheme as a solution to the two anomalous ANITA events and clarify a misconception that exists in the literature about the evolution of high energy neutrinos in matter within the $3+1$ scheme with a possibility of scattering off nuclei. We show that the existing bounds on the flux of $ν_τ$ with energy of EeV rules out this solution for the ANITA events. We show that the $3+1$ solution can be saved from both this bound and from the bound on the extra relativistic degrees of freedom in the early universe by turning on the interaction of neutrinos with ultralight dark matter.
description: 18 pages, 3 figures; v2: matching JHEP version; comment on intrinsic c quark added
Semi-Supervised Learning of Visual Features by Non-Parametrically Predicting View Assignments with Support Samples
Creators: name: Assran, Mahmoud
name: Caron, Mathilde
name: Misra, Ishan
name: Bojanowski, Piotr
name: Joulin, Armand
name: Ballas, Nicolas
name: Rabbat, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper proposes a novel method of learning by predicting view assignments with support samples (PAWS). The method trains a model to minimize a consistency loss, which ensures that different views of the same unlabeled instance are assigned similar pseudo-labels. The pseudo-labels are generated non-parametrically, by comparing the representations of the image views to those of a set of randomly sampled labeled images. The distance between the view representations and labeled representations is used to provide a weighting over class labels, which we interpret as a soft pseudo-label. By non-parametrically incorporating labeled samples in this way, PAWS extends the distance-metric loss used in self-supervised methods such as BYOL and SwAV to the semi-supervised setting. Despite the simplicity of the approach, PAWS outperforms other semi-supervised methods across architectures, setting a new state-of-the-art for a ResNet-50 on ImageNet trained with either 10% or 1% of the labels, reaching 75.5% and 66.5% top-1 respectively. PAWS requires 4x to 12x less training than the previous best methods.
Photoinduced spin-Hall resonance in a k^3-Rashba spin-orbit coupled two dimensional hole system
Creators: name: Bhattacharya, Ankita
name: Islam, SK Firoz
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the band structure modulation and spin-Hall effect of a two-dimensional heavy-hole system with $k^3$-Rashba spin-orbit coupling (RSOC), irradiated by linearly polarized light. We find that the band structure becomes anisotropic under the illumination by the light. Most remarkably, a pair of additional spin-degeneracy points (apart from $Γ$ point) emerge in the energy dispersion, the locations of which are solely determined by the strength of the amplitude of the incident light. If this degeneracy occurs around the Fermi level, the spin-Hall conductivity (SHC) exhibits a resonance. Away from the degeneracy points, the light rotates the average spin polarization. The possible effects of $k^3$-Dresselhaus spin-orbit coupling are also discussed.
description: This is accepted version
Fractal dimension of domain walls in two-dimensional Ising spin glasses
Creators: name: Melchert, O.
name: Hartmann, A. K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We study domain walls in 2d Ising spin glasses in terms of a minimum-weight path problem. Using this approach, large systems can be treated exactly. Our focus is on the fractal dimension $d_f$ of domain walls, which describes via $\simL^{d_f}$ the growth of the average domain-wall length with %% systems size $L\times L$. %% 20.07.07 OM %% Exploring systems up to L=320 we yield $d_f=1.274(2)$ for the case of Gaussian disorder, i.e. a much higher accuracy compared to previous studies. For the case of bimodal disorder, where many equivalent domain walls exist due to the degeneracy of this model, we obtain a true lower bound $d_f=1.095(2)$ and a (lower) estimate $d_f=1.395(3)$ as upper bound. Furthermore, we study the distributions of the domain-wall lengths. Their scaling with system size can be described also only by the exponent $d_f$, i.e. the distributions are monofractal. Finally, we investigate the growth of the domain-wall width with system size (``roughness'') and find a linear behavior.
description: 8 pages, 8 figures, submitted to Phys. Rev. B; v2: shortened version
On the Shorey-Tijdeman Diophantine equation involving terms of Lucas sequences
Creators: name: Ddamulira, Mahadi
name: Luca, Florian
name: Tichy, Robert
Publisher: name: arXiv
Year: 2021
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11B39, 11D45

description: Let $r\ge 1$ be an integer and ${\bf U}:=\{U_n\}_{n\ge 0}$ be the Lucas sequence given by $U_0=0,~U_1=1$, and $U_{n+2}=rU_{n+1}+U_n$ for $n\ge 0$. In this paper, we explain how to find all the solutions of the Diophantine equation, $AU_{n}+BU_{m}=CU_{n_1}+DU_{m_1}$, in integers $r\ge 1$, $0\le m
description: 8 pages, Accepted Manuscript
Additional file 2 of Prognostic value of functional SMAD4 localization in extrahepatic bile duct cancer
Creators: name: Takayama, Hirotoshi
name: Kobayashi, Shogo
name: Gotoh, Kunihito
name: Sasaki, Kazuki
name: Iwagami, Yoshifumi
name: Yamada, Daisaku
name: Tomimaru, Yoshito
name: Akita, Hirofumi
name: Asaoka, Tadafumi
name: Noda, Takehiro
name: Wada, Hiroshi
name: Takahashi, Hidenori
name: Tanemura, Masahiro
name: Doki, Yuichiro
name: Eguchi, Hidetoshi
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Mathematical Sciences not elsewhere classified
subject: Cancer

description: Additional file 2: Supplemental Table 1. Association between clinicopathological factors and SMAD4 expression. Supplemental Table 2. Association between SMAD4 expression at each area and clinicopathological factors among 67 patients except cases without SMAD4 expression at any site. Supplemental Table 3. Association between clinicopathological factors and SMAD4 expression at central lesion. Supplemental Table 4. Association between clinicopathological factors and SMAD4 expression at invasion front. Supplemental Table 5. Univariate and Multivariate analysis for recurrence free survival of 73 patients with upfront surgery group. Supplemental Table 6. Univariate and Multivariate analysis for overall survival of 73 patients with upfront-surgery group. Supplemental Table 7. Association between clinicopathological factors and neoadjuvant treatment.
A new look at the Bondi-Sachs energy-momentum
Creators: name: Frauendiener, Jörg
name: Stevens, Chris
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: How does one compute the Bondi mass on an arbitrary cut of null infinity $\scri$ when it is not presented in a Bondi system? What then is the correct definition of the mass aspect? How does one normalise an asymptotic translation computed on a cut which is not equipped with the unit-sphere metric? These are questions which need to be answered if one wants to calculate the Bondi-Sachs energy-momentum for a space-time which has been determined numerically. Under such conditions there is not much control over the presentation of $\scri$ so that most of the available formulations of the Bondi energy-momentum simply do not apply. The purpose of this article is to provide the necessary background for a manifestly conformally invariant and gauge independent formulation of the Bondi energy-momentum. To this end we introduce a conformally invariant version of the GHP formalism to rephrase all the well-known formulae. This leads us to natural definitions for the space of asymptotic translations with its Lorentzian metric, for the Bondi news and the mass-aspect. A major role in these developments is played by the "co-curvature", a naturally appearing quantity closely related to the Gauß curvature on a cut of~$\scri$.
description: 23 pages, typos removed, one reference added. Another reference added, clarifying text added in two places
Two-particle scattering matrix of two interacting mesoscopic conductors
Creators: name: Goorden, M. C.
name: Buttiker, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider two quantum coherent conductors interacting weakly via long range Coulomb forces. We describe the interaction in terms of two-particle collisions described by a two-particle scattering matrix. As an example we determine the transmission probability and correlations in a two-particle scattering experiment and find that the results can be expressed in terms of the density-of-states matrices of the non-interacting scatterers.
description: 4 pages, 2 figures
SuperVoxHenry Tucker-Enhanced and FFT-Accelerated Inductance Extraction for Voxelized Superconducting Structures
Creators: name: Wang, Mingyu
name: Qian, Cheng
name: Di Lorenzo, Enrico
name: Gomez, Luis J.
name: Okhmatovski, Vladimir
name: Yucel, Abdulkadir C.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: FOS: Computer and information sciences

description: This paper introduces SuperVoxHenry, an inductance extraction simulator for analyzing voxelized superconducting structures. SuperVoxHenry extends the capabilities of the inductance extractor VoxHenry for analyzing the superconducting structures by incorporating the following enhancements. 1. SuperVoxHenry utilizes a two-fluid model to account for normal currents and supercurrents. 2. SuperVoxHenry introduces the Tucker decompositions to reduce the memory requirement of circulant tensors as well as the setup time of the simulator. 3. SuperVoxHenry incorporates an aggregation-based algebraic multigrid technique to obtain the sparse preconditioner.
Low-temperature thermochronological evolution of the Menderes and Alanya massifs (Turkey)
Creators: name: Mittiga, Francesco <1985>
Publisher: name: Alma Mater Studiorum - Università di Bologna
Year: 2015
Subjects: GEO/02 Geologia stratigrafica e sedimentologica

description: The application of two low-temperature thermochronometers [fission-track analysis and (U-Th)/He analyses, both on apatite] to various tectonostratigraphic units of the Menderes and Alanya Massifs of Turkey has provided significant new constraints to the understanding of their structural evolution. The Menderes Massif of western Anatolia is one of the largest metamorphic core complexes on Earth. The integration of the geochronometric dataset presented in this dissertation with preexisting ones from the literature delineates three groups of samples within the Menderes Massif. In the northern and southern region the massif experienced a Late Oligocene-Early Miocene tectonic denudation and surface uplift; whereas data from the central region are younger, with most ages ranging between the Middle-Late Miocene. The results of this study are consistent with the interpretation for a symmetric exhumation of the Menderes Massif. The Alanya Massif of SW Anatolia presents a typical nappe pile consisting of thrust sheets with contrasting metamorphic histories. Petrological and geochronological data clearly indicate that the tectonometamorphic evolution Alanya started from Late Cretaceous with the northward subduction of an ‘Alanya ocean’ under the Tauride plate. As an effect of the closure of the İzmir–Ankara–Erzincan ocean, northward backthrusting during the Paleocene-Early Eocene created the present stacking order. Apatite fission-track ages from this study range from 31.8 to 26.8 Ma (Late Rupelian-Early Chattian) and point to a previously unrecognized mid-Oligocene cooling/exhumation episode. (U-Th)/He analysis on zircon crystals obtained from the island of Cyprus evidentiate that the Late Cretaceous trondhjemites of the Troodos Massif not recorded a significant cooling event. Instead results for the Late Triassic turbiditic sandstones of the Vlambouros Formation show that the Mamonia mélange was never buried enough to reach the closure temperature of the ZHe radiometric system (ca. 200°C), thus retaining the Paleozoic signature of a previous sedimentary cycle.
title: L’influence du jonglage sur les performances en rotation mentale et en mathématiques chez des élèves de 12 à 14 ans
title: L’influence du jonglage sur les performances en rotation mentale et en mathématiques chez des élèves de 12 à 14 ans
titleType: AlternativeTitle
Creators: name: Hofer, Jeanne
name: Correira Da Silva, Micael
Publisher: name: Unknown
Year: 0
Subjects: subject: jonglage
subject: rotation mentale
subject: mathématiques
subject: activité physique
subject: performances scolaires
subject: différentiation entre genres

description: La rotation mentale est un terme qui désigne le fait de faire tourner l’image mentale d’un objet en 2D ou en 3D. Depuis les années 1970, les recherches n’ont cessé d’accroître dans ce domaine et il est aujourd’hui possible de démontrer un lien positif entre rotation mentale et performances intellectuelles, comme, entre autres, les mathématiques. Un lien a également été établi entre rotation mentale et activité physique. Les recherches ont démontré que dès l’âge de 10 ans, la rotation mentale suscitait des différences de performance entre les deux sexes, les sujets masculins étant meilleurs. Cependant, de telles différences ne sont pas une fatalité, puisque les études ont montré que la rotation mentale était un élément qui pouvait être entraîné. Ce travail tente de confirmer si un entraînement de jonglage de 5 semaines chez des élèves de 12 à 14 ans dans le cadre scolaire pouvait avoir une influence positive sur leurs performances en rotation mentale, puis s’il pouvait en découler une amélioration des performances en mathématiques fondamentales comme le calcul à trou, la comparaison de nombres ou l’estimation. Ce projet tente également de savoir si de tels impacts pouvaient être modulés selon le sexe des sujets. Un projet de recherche sur un design expérimental de type pré-test / post-test n’a pas montré beaucoup d’écart entre les filles et les garçons, ce qui voudrait dire qu’à ce jeune âge, les différences entre les genres sont encore trop faibles et difficilement visibles. En revanche, ce projet permet de révéler que l’entraînement du jonglage influence positivement et de manière significative les performances en estimation de nombres. Il permet également de montrer l’aspect prometteur des analyses, qui implique qu’un entraînement de jonglage d’une plus longue durée devrait amener à des résultats plus conséquents au niveau des performances en rotation mentale et en mathématiques. Ceci encourage l’idée que l’activité physique est un domaine primordial à l’école, et qu’une collaboration interdisciplinaire pourrait s’avérer très prolifiques pour les élèves, que ce soit sur le plan physique ou cognitif.
Observations of Manifestations of Skeletal Structures of a Filamentary Matter on the Sun
Creators: name: Rantsev-Kartinov, Valentin. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The analysis of databases of photographic images of the Sun (obtained in region of soft x-ray) by means of a method of multilevel dynamical contrasting, has shown presence of skeletal structures of the Sun as outside (chromo-sphere flashes and powerful coronal mass ejections) and on the Sun (structures in its atmosphere, protuberances and of solar a stains). Moreover the structures which radius of rotation is less than radius of a solar disk on breadth of their observation have been revealed. On the basis of the obtained results of this analysis, the author puts forward a hypothesis about an opportunity of existence of some filamentary matter as inside, so outside of the Sun.
description: 10 pages, 5 figures, the materials of this paper was been partially published in Proc. Conf.: 32-th EPS on Plasma Phys. and Contr. Fusion, (2005); 4ICPDP, (2005); the 13th General Conference of the European Physical Society, (2005)
On Virasoro Constraints for Orbifold Gromov-Witten Theory
Creators: name: Jiang, Yunfeng
name: Tseng, Hsian-Hua
Publisher: name: arXiv
Year: 2007
Subjects: subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Mathematics

description: Virasoro constraints for orbifold Gromov-Witten theory are described. These constraints are applied to the degree zreo, genus zero orbifold Gromov-Witten potentials of the weighted projective stacks $\mathbb{P}(1,N)$, $\mathbb{P}(1,1,N)$ and $\mathbb{P}(1,1,1,N)$ to obtain formulas of descendant cyclic Hurwitz-Hodge integrals.
description: Typos and mistakes corrected
Steady state phonon occupation of EIT cooling: higher order calculations
Creators: name: Zhang, Shuo
name: Tian, Tian-Ci
name: Wu, Zheng-Yang
name: Zhang, Zong-Sheng
name: Wang, Xin-Hai
name: Wu, Wei
name: Bao, Wan-Su
name: Guo, Chu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Electromagnetically induced transparency (EIT) cooling has established itself as one of the most widely used cooling schemes for trapped ions during the past twenty years. Compared to its alternatives, EIT cooling possesses important advantages such as a tunable effective linewidth, a very low steady state phonon occupation, and applicability for multiple ions. However, existing analytic expression for the steady state phonon occupation of EIT cooling is limited to the zeroth order of the Lamb-Dicke parameter. Here we extend such calculations and present the explicit expression to the second order of the Lamb-Dicke parameter. We discuss several implications of our refined formula and are able to resolve certain difficulties in existing results.
description: 7 pages, 3 figures
Quantum Discord for multiqubit Systems
Creators: name: Li, Bo
name: Zhu, Chen-Lu
name: Liang, Xiao-Bin
name: Ye, Biao-Liang
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We evaluate analytically the quantum discord for a large family of multiqubit states. It is interesting to note that the quantum discord of three-qubits and five-qubits is the same, as is the quantum discord of two-qubits and six-qubits. We discover that the quantum discord of this family states can be concluded into three categories. The level surfaces of the quantum discord in the three categories is shown through images. Furthermore, we investigated the dynamic behavior of quantum discord under decoherence. For the odd partite systems, we prove the frozen phenomenon of quantum discord doesn't exist under the phase flip channel, while it can be found in the even partite systems.
description: 9 pages, 2 figures, comments are welcome!. arXiv admin note: text overlap with arXiv:2104.12344
Asymptotic quasinormal modes of string-theoretical $d$-dimensional black holes
Creators: name: Moura, Filipe
name: Rodrigues, João
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We compute the quasinormal frequencies of $d$-dimensional spherically symmetric black holes with leading string $α'$ corrections for tensorial gravitational perturbations in the highly damped regime. We solve perturbatively the master differential equation and we compute the monodromies of the master perturbation variable (analytically continued to the complex plane) in different contours, in order to obtain the quasinormal mode spectra. We proceed analogously for the quasinormal modes of test scalar fields. Differently than in Einstein gravity, we obtain distinct results for the two cases.
description: 31 pages, 4 figures. v2: references added; published version
Συνθετική αναπαραγωγή συστημάτων οργανικών χρωστικών με συναφή στερεωτικά/συνδετικά μέσα και υποστρώματα: αναλυτική και φασματοσκοπική μελέτη και κωδικοποίηση των συστημάτων
Creators: name: Κολιάρμου, Ελένη Π.
Publisher: name: Aristotle University of Thessaloniki
Year: 2015
Subjects: Χρωστικές
Χρωματογραφία
Φασματοσκοπία
Κωδικοποίηση
Dyes
Chromatography
Spectroscopy
Codification

description: Στην παρούσα διδακτορική διατριβή πραγματοποιήθηκε συνθετική αναπαραγωγή μάλλινων και βαμβακερών συστημάτων φυσικών οργανικών χρωστικών με συναφή στερεωτικά/συνδετικά μέσα, τα οποία υποβλήθησαν σε πρότυπες δοκιμασίες αντοχής στο φως και στις υγρές κατεργασίες και επιχειρήθηκε η συστηματοποιημένη μελέτη τους χρωματογραφικά και φασματοσκοπικά με τις τεχνικές υγρή χρωματογραφία-φασματοσκοπία μάζας και φασματοσκοπία διάχυτης ανάκλασης. Τα αποτελέσματα που προέκυψαν από την μελέτη των συστημάτων των φυσικών οργανικών χρωστικών οργανώθηκαν σε μία βάση δεδομένων και αξιοποιήθηκαν για την δημιουργία ενός καινοτόμου εργαλείου πρόβλεψης συνταγών βαφής σε δείγματα ιστορικού ενδιαφέροντος, το οποίο επιτρέπει την ασφαλή εκτίμηση της φυσικής οργανικής χρωστικής και του προστύμματος που χρησιμοποιήθηκαν για την χρώση αυτών, μέσω της μη καταστρεπτικής φασματοσκοπικής μεθόδου διάχυτης ανάκλασης.
description: In this dissertation, synthetic reproduction of wool and cotton systems of natural organic dyes with relevant mordants was conducted. The systems were subjected to standard wash fastness and light fastness tests and a systemized chromatographic and spectroscopic study of them was attempted, with the application of liquid chromatography-mass spectroscopy and diffuse reflectance spectroscopy. The results occurred from this systemized study were organized into a database and were exploited for the creation of a novel tool of dyeing recipes’ prediction on samples of historic interest, which enables safe estimation of the natural organic dyes and the mordant used for their staining, through the non-destructive method of diffuse reflectance spectroscopy.
Disorder effects in topological insulator nanowires
Creators: name: Huang, Yi
name: Shklovskii, B. I.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Three-dimensional topological insulator (TI) nanowires with quantized surface subband spectra are studied as a main component of Majorana bound states (MBS) devices. However, such wires are known to have large concentration $N \sim 10^{19}$ cm$^{-3}$ of Coulomb impurities. It is believed that a MBS device can function only if the amplitude of long-range fluctuations of the random Coulomb potential $Γ$ is smaller than the subband gap $Δ$. Here we calculate $Γ$ for recently experimentally studied large-dielectric-constant (Bi$_{1-x}$Sb$_x$)$_2$Te$_{3}$ wires in a small-dielectric-constant environment (no superconductor). We show that provided by such a dielectric-constant contrast, the confinement of electric field of impurities within the wire allows more distant impurities to contribute into $Γ$, leading to $Γ\sim 3Δ$. We also calculate a TI wire resistance as a function of the Fermi level and carrier concentration due to scattering on Coulomb and neutral impurities, and do not find observable discrete subband-spectrum related oscillations at $N \gtrsim 10^{18}$ cm$^{-3}$.
description: 7 pages, 3 figures
Massive sterile neutrinos in the early universe: From thermal decoupling to cosmological constraints
Creators: name: Mastrototaro, Leonardo
name: Serpico, Pasquale Dario
name: Mirizzi, Alessandro
name: Saviano, Ninetta
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We consider relatively heavy neutrinos $ν_H$, mostly contributing to a sterile state $ν_s$, with mass in the range 10 MeV $\lesssim m_s \lesssim m_π \sim 135$ MeV, which are thermally produced in the early universe in collisional processes involving active neutrinos, and freezing out after the QCD phase transition. If these neutrinos decay after the active neutrino decoupling, they generate extra neutrino radiation, but also contribute to entropy production. Thus, they alter the value of the effective number of neutrino species $N_{\rm eff}$ as for instance measured by the cosmic microwave background (CMB), as well as affect primordial nucleosynthesis (BBN), notably ${}^4$He production. We provide a detailed account of the solution of the relevant Boltzmann equations. We also identify the parameter space allowed by current Planck satellite data and forecast the parameter space probed by future Stage-4 ground-based CMB observations, expected to match or surpass BBN sensitivity.
description: V2: 28 pages, 16 figures, references updated, minor clarifications in figures and text according to version published in PRD
title: [Rezension zu:] Johannes Fried (Hg.), Träger und Instrumentarien des Friedens im hohen und späten Mittelalter (Vorträge und Forschungen XLIII), Jan Thorbecke Verlag, Sigmaringen 1996, 633 S. und 12 Abb.
Creators: name: Baumgärtner, Ingrid
Publisher: name: Universität Kassel
Year: 1997
Subjects: subject: Rezension
subject: Mediävistik
subject: 940
subject: Friedenssicherung
subject: Geschichte 1200-1500
subject: Rezension

description: Online verfügbar auch unter: https://www.jstor.org/stable/42584977
The Adoption of Chatbot for Customer Service
Creators: name: Anatriello, Giuseppina
name: Carlini, Massimo
name: Corbisiero, Fabio
name: Lauro, Maurizio
name: Monaco, Salvatore
Publisher: name: Fuori Luogo Journal of Sociology of Territory, Tourism, Technology
Year: 2024

description: Modeling, profiling, analysing and understanding of users are becoming increasingly important in many industries also thanks to the support of artificial intelligence, representing a key to success in today’s data-driven world. The aim of the paper is to examine the interactions that occurred between ANAS users and the company’s’ chatbot, in order to highlight the requests, preferences and needs of users and the automated response and support capabilities that are provided to them. To meet the objectives of the research, a qualitative-quantitative study was carried out, including hermeneutic analysis and an automated analysis of the conversations were realized, using a natural language analysis (NLP) tool.  


The results show that the conversational material is characterized by being a precious source of information to better understand the needs of the audience and, at the same time, to be able to improve the service offered to the customer. Understanding users, their profile, key issues and requests can help companies personalize their services and adapt strategies from the bottom up.


This knowledge of users’ needs can be used to increase their satisfaction and help them find the right answer more quickly and easily, as well as - as has been done - identify aspects to integrate and/or modify for a more effective and efficient communication channel responsive to user needs. Beyond the content, the form of the conversations can represent a further area for improvement.


In this sense, important practical implications emerged from the data for artificial intelligence designers and corporate communication professionals working in ANAS.  
description: Fuori Luogo Journal of Sociology of Territory, Tourism, Technology, Fuori Luogo Journal of Sociology of Territory, Tourism, Technology - On Line First
A fluid simulation system based on the MPS method
Creators: name: Vieira-e-Silva, André Luiz Buarque
name: Brito, Caio José dos Santos
name: Simões, Francisco Paulo Magalhães
name: Teichrieb, Veronica
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Performance (cs.PF)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Fluid flow simulation is a highly active area with applications in a wide range of engineering problems and interactive systems. Meshless methods like the Moving Particle Semi-implicit (MPS) are a great alternative to deal efficiently with large deformations and free-surface flow. However, mesh-based approaches can achieve higher numerical precision than particle-based techniques with a performance cost. This paper presents a numerically stable and parallelized system that benefits from advances in the literature and parallel computing to obtain an adaptable MPS method. The proposed technique can simulate liquids using different approaches, such as two ways to calculate the particles' pressure, turbulent flow, and multiphase interaction. The method is evaluated under traditional test cases presenting comparable results to recent techniques. This work integrates the previously mentioned advances into a single solution, which can switch on improvements, such as better momentum conservation and less spurious pressure oscillations, through a graphical interface. The code is entirely open-source under the GPLv3 free software license. The GPU-accelerated code reached speedups ranging from 3 to 43 times, depending on the total number of particles. The simulation runs at one fps for a case with approximately 200,000 particles. Code: https://github.com/andreluizbvs/VoxarMPS
Self consistency in hadron physics
Creators: name: Lutz, M. F. M.
name: Korpa, C. L.
name: Semke, A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this talk we discuss at hand of two examples the crucial role played by self consistency in hadron physics. The first example concerns the quark-mass dependence of the baryon octet and decuplet masses. It is shown that within a self consistent one-loop approach based on the chiral Lagrangian the 'mysterious' quark-mass dependence of the $Ξ$ mass predicted by the MILC collaboration may be recovered in terms of a discontinuous chiral extrapolation. This is a consequence of self consistency imposed on the partial summation, i.e. the masses used in the loop functions are identical to those obtained from the baryon self energies. In the second example we discuss recent studies on the properties of D mesons in cold nuclear matter as they are predicted by coupled-channel dynamics. Here a self consistent many-body approach reveals the close interlink of the properties of D meson and open-charm baryon resonances in nuclear matter. The relevance of exotic baryon resonances for the spectral distortion of the $D_s^\pm$ in nuclear matter is pointed out.
description: Invited talk presented by M.F.M.L. at YKIS 2006, 9 pages, 3 figures
Dineutron structure in $^{8}$He
Creators: name: Kanada-En'yo, Yoshiko
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The ground and excited states of $^{8}$He were investigated with a method of antisymmetrized molecular dynamics(AMD). We adopted effective nuclear interactions which systematically reproduce the binding energies of $^4$He, $^6$He and $^8$He. The ground state of $^8$He has both the $j$-$j$ coupling feature($p_{3/2}$ closure) and the $L$-$S$ coupling feature($^4$He$+2n+2n$) with a slight tail of dineutron at the long distance region. The theoretical results give an indication of the $0^+_2$ state with dineutron gas-like structure. The dineutron structure, $^4$He+$2n$+$2n$, of this state is similar to the $3α$-cluster structure of the $^{12}$C($0^+_2$) state which has been interpreted as an $α$ condensate state. Since the $^8$He($0^+_2$) state has a significant overlap with the dineutron condensate wave function where two dineutrons are moving in $S$ wave around the $α$ core with a dilute density, we suggest that this theoretically predicted $0^+_2$ state is a candidate of the dineutron condensate state.
description: 12 pages, 5 figures, submitted to PRC
การพัฒนารูปแบบการบริหารที่มุ่งสู่การเป็นองค์การแห่งการเรียนรู้ของสถานศึกษาเอกชน ประเภทสามัญศึกษาในเขตภาคกลาง
Creators: name: อุษา งามมีศรี
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: องค์การแห่งการเรียนรู้, รูปแบบการบริหาร, สถานศึกษาเอกชน

description: 2, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Pulse area dependence of multiple quantum coherence signals in dilute thermal gases
Creators: name: Ames, Benedikt
name: Buchleitner, Andreas
name: Carnio, Edoardo G.
name: Shatokhin, Vyacheslav N.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the general framework of open quantum systems, we assess the impact of the pulse area on single and double quantum coherence (1QC and 2QC) signals extracted from fluorescence emitted by dilute thermal gases. We show that 1QC and 2QC signals are periodic functions of the pulse area, with distinctive features which reflect the particles' interactions via photon exchange, the polarizations of the laser pulses, and the observation direction.
description: 11 pages, 4 figures
The conical singularity method and the energy-momentum tensor near the black hole horizon using the Kruskal coordinates
Creators: name: Alves, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We apply the conical singularity method to the two dimensional version of the Schwarzschild metric to obtain the Kruskal coordinates of the black hole in a very simple and direct way. Then we make use of this metric in an approximated version and calculate the expected value of energy-momentum tensor of a massless quantum field near the horizon, resulting in regular expressions for its components.
Critical fitting: pedagogy for confronting colonial dynamics in fashion
Creators: name: Hegarty, Olivia
name: O'Donovan, Cian
name: Chong Kwan, Sara
name: Stevens, Luke
Publisher: name: Zenodo
Year: 2024

description: Critical Fitting is a new method devised to decolonise design teaching in fashion schools. With participants at London College of Fashion we workshopped a core concept in clothing design: fit. The standardisation and simplification of fit is critical to fashion's ability to sell, ship and scale products globally - facilitated in part by vocational teaching which ties fit to practices and dynamics of colonial modernity. Our workshops locate an opportunity for advancing critical pedagogy in conjunction with STS pedagogy in order to empower LCF’s globally-diverse students to bring to classrooms their own situated, sensory embodied and tacit knowledge of fit whilst simultaneously exonerating them from obligations to do so.This article shows how workshops use playful but conceptually powerful strategies to remember and imagine alternative material-practices and ways of knowing – from those predetermined in industrially-produced garments to those enacted by participant’s grandmothers’ hands. We contribute a novel compositional methodology, Critical Fitting, that opens up new possibilities for decolonial pedagogy and can be adapted for new practices of STS teaching.
ผลกระทบของกลยุทธ์การปรับตัวทางการตลาดที่มีต่อความได้เปรียบทางการแข่งขันของธุรกิจการผลิตเครื่องเรือนในประเทศไทย
Creators: name: ศิริภา วิทยาพรพิพัฒน์
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: กลยุทธ์การปรับตัวทางการตลาด, ความได้เปรียบทางการแข่งขัน

description: 2, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Supernova Remnants and GLAST
Creators: name: Slane, Patrick
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: It has long been speculated that supernova remnants represent a major source of cosmic rays in the Galaxy. Observations over the past decade have ceremoniously unveiled direct evidence of particle acceleration in SNRs to energies approaching the knee of the cosmic ray spectrum. Nonthermal X-ray emission from shell-type SNRs reveals multi-TeV electrons, and the dynamical properties of several SNRs point to efficient acceleration of ions. Observations of TeV gamma-ray emission have confirmed the presence of energetic particles in several remnants as well, but there remains considerable debate as to whether this emission originates with high energy electrons or ions. Equally uncertain are the exact conditions that lead to efficient particle acceleration. Based on the catalog of EGRET sources, we know that there is a large population of Galactic gamma-ray sources whose distribution is similar to that of SNRs. With the increased resolution and sensitivity of GLAST, the gamma-ray SNRs from this population will be identified. Their detailed emission structure, along with their spectra, will provide the link between their environments and their spectra in other wavebands to constrain emission models and to potentially identify direct evidence of ion acceleration in SNRs. Here I summarize recent observational and theoretical work in the area of cosmic ray acceleration by SNRs, and discuss the contributions GLAST will bring to our understanding of this problem.
description: 5 pages, to be published in "The Proceedings of the First International GLAST Symposium", February 5-8, 2007, Stanford University, AIP, Eds. S. Ritz, P. F. Michelson, and C. Meegan
The author replies
Creators: name: Creutz, Michael
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: I respond to the Bernard et al. comment on my letter ``Chiral anomalies and rooted staggered fermions.''
description: 3 pages. Rebuttal to arXiv:hep-lat/0603027. To appear in Physics Letters B
ผลกระทบของความรู้ทางการบัญชีสมัยใหม่ที่มีต่อประสิทธิภาพรายงานทางการเงินของธุรกิจขนาดกลางและขนาดย่อมในเขตภาคตะวันออกเฉียงเหนือ
Creators: name: รุ่งรัศมี   รัชสมบัติ
Publisher: name: มหาวิทยาลัยมหาสารคาม
Year: 2557
Subjects: ความรู้ทางการบัญชีสมัยใหม่, ประสิทธิภาพรายงานทางการเงิน, ธุรกิจขนาดกลางและขนาดย่อมในเขตภาคตะวันออกเฉียงเหนือ

description: 2, 33, วารสารมนุษยศาสตร์และสังคมศาสตร์  มหาวิทยาลัยมหาสารคาม
Large System Analysis of Game-Theoretic Power Control in UWB Wireless Networks with Rake Receivers
Creators: name: Bacci, G.
name: Luise, M.
name: Poor, H. V.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: Computer Science and Game Theory (cs.GT)
subject: FOS: Computer and information sciences

description: This paper studies the performance of partial-Rake (PRake) receivers in impulse-radio ultrawideband wireless networks when an energy-efficient power control scheme is adopted. Due to the large bandwidth of the system, the multipath channel is assumed to be frequency-selective. By using noncooperative game-theoretic models and large system analysis, explicit expressions are derived in terms of network parameters to measure the effects of self- and multiple-access interference at a receiving access point. Performance of the PRake is compared in terms of achieved utilities and loss to that of the all-Rake receiver.
description: To appear in the Proceedings of the 8th IEEE International Workshop on Signal Processing Advances in Wireless Communications (SPAWC), Helsinki, Finland, June 17-20, 2007
The bisymplectomorphism group of a bounded symmetric domain
Creators: name: Di Scala, Antonio J.
name: Loi, Andrea
name: Roos, Guy
Publisher: name: arXiv
Year: 2007
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53D05, 58F06 (Primary); 32M15, 17C10 (Secondary)

description: An Hermitian bounded symmetric domain in a complex vector space, given in its circled realization, is endowed with two natural symplectic forms: the flat form and the hyperbolic form. In a similar way, the ambient vector space is also endowed with two natural symplectic forms: the Fubini-Study form and the flat form. It has been shown in arXiv:math.DG/0603141 that there exists a diffeomorphism from the domain to the ambient vector space which puts in correspondence the above pair of forms. This phenomenon is called symplectic duality for Hermitian non compact symmetric spaces. In this article, we first give a different and simpler proof of this fact. Then, in order to measure the non uniqueness of this symplectic duality map, we determine the group of bisymplectomorphisms of a bounded symmetric domain, that is, the group of diffeomorphisms which preserve simultaneously the hyperbolic and the flat symplectic form. This group is the direct product of the compact Lie group of linear automorphisms with an infinite-dimensional Abelian group. This result appears as a kind of Schwarz lemma.
description: 19 pages. Version 2: minor corrections
SODIUM CONTENT OF PROCESSED FOODS IN BRUNEI DARUSSALAM
Creators: name: Kamis, Zakaria
name: Roseyati Yaakub
name: Ong, Sok King
name: Norhayati Kassim
Publisher: name: Chulalongkorn Universtiy Press
Year: 2015
Subjects: Enabling environmen, Hypertension, Salty food, Sodium, Processed foods, Brunei Darussalam

description: 3, 29, Journal of Health Research
Bridging the gap between protoplanetary and debris disks: separate evolution of millimeter and micrometer-sized dust
Creators: name: Michel, Arnaud
name: van der Marel, Nienke
name: Matthews, Brenda
Publisher: name: arXiv
Year: 2021
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The connection between the nature of a protoplanetary disk and that of a debris disk is not well understood. Dust evolution, planet formation, and disk dissipation likely play a role in the processes involved. We aim to reconcile both manifestations of dusty circumstellar disks through a study of optically thin Class III disks and how they correlate to younger and older disks. In this work, we collect literature and ALMA archival millimeter fluxes for 85 disks (8%) of all Class III disks across nearby star-forming regions. We derive millimeter-dust masses $M_{\text{dust}}$ and compare these with Class II and debris disk samples in the context of excess infrared luminosity, accretion rate, and age. The mean $M_{\text{dust}}$ of Class III disks is $0.29 \pm 0.19~M_{\oplus}$. We propose a new evolutionary scenario wherein radial drift is very efficient for non-structured disks during the Class II phase resulting in a rapid decrease of $M_{\text{dust}}$. However, we find long infrared protoplanetary disk timescales of ${\sim}$8~Myr, which are consistent with overall slow disk evolution. In structured disks, the presence of dust traps allows for the formation of planetesimal belts at large radii, such as those observed in debris disks. We propose therefore that the planetesimal belts in debris disks are the result of dust traps in structured disks, whereas protoplanetary disks without dust traps decrease in dust mass through radial drift and are therefore undetectable as debris disks after the gas has dissipated. These results provide a hypothesis for a novel view of disk evolution.
description: Accepted by ApJ, 20 pages, 13 figures. YouTube presentation (~10 minutes) on results here: https://youtu.be/NOVE9-a2kWU