cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the distribution of conjugacy classes between the cosets of a finite group in a cyclic extension
Creators: name: Britnell, John R.
name: Wildon, Mark
Publisher: name: arXiv
Year: 2007
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics
subject: 20D60, 20E45

description: Let G be a finite group and H a normal subgroup such that G/H is cyclic. Given a conjugacy class g^G of G we define its centralizing subgroup to be HC_G(g). Let K be such that H\le K\le G. We show that the G-conjugacy classes contained in K whose centralizing subgroup is K, are equally distributed between the cosets of H in K. The proof of this result is entirely elementary. As an application we find expressions for the number of conjugacy classes of K under its own action, in terms of quantities relating only to the action of G.
description: 12 pages
GNC Analysis and Robotic Systems Configuration of Collision-free Earth Observation Satellites (CfEOS) Constellations
Creators: name: Ntumba, Manuel
name: Gore, Saurabh
name: Jain, Pulkit
name: Awanyo, Jean-Baptiste
Publisher: name: arXiv
Year: 2021
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Robotics (cs.RO)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: The high number of objects in the LEO is a risk that collisions between sub-orbital or escape velocity objects with an orbiting object of satellites occur when two satellites collide while orbiting the earth. One of the approaches to avoid collisions is a robotic configuration of satellite constellations. Satellite constellations should not be confused with satellite clusters, which are groups of satellites moving in close proximity to each other in nearly identical orbits; nor with satellite series or satellite programs, which are generations of satellites launched successively; nor with satellite fleets, which are groups of satellites from the same manufacturer or operator that operate an independent system. CfEOS constellations designed for geospatial applications and Earth observation. Unlike a single satellite, a constellation can provide permanent global or near-global coverage anywhere on Earth. CfEOS constellations are configured in sets of complementary orbital planes and connect to ground stations located around the globe. This paper describes the GNC analysis, the orbit propagation and robotic systems configuration for Collision-free Earth observation satellites (CfEOS) constellations.
description: 9 pages, 1 table, 8 figures
Significant enhancement of hole mobility in [110] silicon nanowires compared to electrons and bulk silicon
Creators: name: Buin, A. K.
name: Verma, A.
name: Svizhenko, A.
name: Anantram, M. P
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Utilizing sp3d5s* tight-binding band structure and wave functions for electrons and holes we show that acoustic phonon limited hole mobility in [110] grown silicon nanowires (SiNWs) is greater than electron mobility. The room temperature acoustically limited hole mobility for the SiNWs considered can be as high as 2500 cm2/Vs, which is nearly three times larger than the bulk acoustically limited silicon hole mobility. It is also shown that the electron and hole mobility for [110] grown SiNWs exceed that of similar diameter [100] SiNWs, with nearly two orders of magnitude difference for hole mobility. Since small diameter SiNWs have been seen to grow primarily along [110] direction, results strongly suggest that these SiNWs may be useful in future electronics. Our results are also relevant to recent experiments measuring SiNW mobility.
Measurement of the branching fraction B(tau- --> K0 pi- nu) using the BaBar detector
Creators: name: Aubert, B.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A preliminary measurement of the branching fraction B(tau- --> K0 pi- nu) is made using 384.6 fb-1 of e+e- collision data provided by the PEP-II collider, operating primarily at sqrt(s)=10.58 GeV, and recorded using the BaBar detector. From this we measure: B(tau- --> K0 pi- nu) = (0.840 +/- 0.004 (stat) +/- 0.023 (syst)) %. This result is the most precise measurement to date and is consistent with the world average.
description: 17 pages, 3 figures, submitted to ICHEP 2008
Simple approach for high-contrast optical imaging and characterization of graphene-based sheets
Creators: name: Jung, Inhwa
name: Pelton, Matthew
name: Piner, Richard
name: Dikin, Dmitriy A.
name: Stankovich, Sasha
name: Watcharotone, Supinda
name: Hausner, Martina
name: Ruoff, Rodney S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A simple optical method is presented for identifying and measuring the effective optical properties of nanometer-thick, graphene-based materials, based on the use of substrates consisting of a thin dielectric layer on silicon. High contrast between the graphene-based materials and the substrate is obtained by choosing appropriate optical properties and thickness of the dielectric layer. The effective refractive index and optical absorption coefficient of graphene oxide, thermally reduced graphene oxide, and graphene are obtained by comparing the predicted and measured contrasts.
description: New measurements, calculations modified, discussion revised
Renormalized Wick expansion for a modified PQCD
Creators: name: de Oca, Alejandro Cabo Montes
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The renormalization scheme for the Wick expansion of a modified version of the perturbative QCD introduced in previous works is discussed. Massless QCD is considered, by implementing the usual multiplicative scaling of the gluon and quark wave functions and vertices. However, also massive quark and gluon counter-terms are allowed in this mass less theory since the condensates are expected to generate masses. A natural set of expansion parameters of the physical quantities is introduced: the coupling itself and to masses $m_q$ and $m_g$ associated to quarks and gluons respectively. This procedure allows to implement a dimensional transmutation effect through these new mass scales. A general expression for the new generating functional in terms of the mass parameters $m_q$ and $m_g$ is obtained in terms of integrals over arbitrary but constant gluon or quark fields in each case. Further, the one loop potential, is evaluated in more detail in the case when only the quark condensate is retained. This lowest order result again indicates the dynamical generation of quark condensates in the vacuum.
description: 13 pages, one figure
When Clusters Collide: Constraints On Antimatter On The Largest Scales
Creators: name: Steigman, Gary
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Observations have ruled out the presence of significant amounts of antimatter in the Universe on scales ranging from the solar system, to the Galaxy, to groups and clusters of galaxies, and even to distances comparable to the scale of the present horizon. Except for the model-dependent constraints on the largest scales, the most significant upper limits to diffuse antimatter in the Universe are those on the Mpc scale of clusters of galaxies provided by the EGRET upper bounds to annihilation gamma-rays from galaxy clusters whose intra-cluster gas is revealed through its x-ray emission. On the scale of individual clusters of galaxies the upper bounds to the fraction of mixed matter and antimatter for the 55 clusters from a flux-limited x-ray survey range from < 5 x 10^(-9) to < 1 x 10^(-6), strongly suggesting that individual clusters of galaxies are made entirely of matter or, of antimatter. X-ray and gamma-ray observations of colliding clusters of galaxies, such as the Bullet Cluster, permit these constraints to be extended to even larger scales. If the observations of the Bullet Cluster, where the upper bound to the antimatter fraction is found to be < 3 x 10^-6, can be generalized to other colliding clusters of galaxies, cosmologically significant amounts of antimatter will be excluded on scales of order 20 Mpc (5 x 10^(15)M_Sun).
description: 4 pages, 1 figure
KIC 12602250: A low-amplitude Double-mode $δ$ Scuti star with Amplitude Modulation
Creators: name: Lv, Chenlong
name: Esamdin, Ali
name: Zeng, Xiangyun
name: Pascual-Granado, J.
name: Yang, Taozhi
name: Liu, Junhui
Publisher: name: arXiv
Year: 2021
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We propose for the first time that KIC 12602250 is a low-amplitude radial double-mode $δ$ Scuti star with amplitude modulation. The detailed frequency analysis is given for the light curve of KIC 12602250 which is delivered from the Kepler mission. The Fourier analysis of the long cadence data (i.e. Q0 - Q17, spanning 1471 days) reveals that the variations of the light curve are dominated by the strongest mode with frequency F0 = 11.6141 $\rm{d^{-1}}$, suggesting that KIC 12602250 is a $δ$ Scuti star. The other independent mode F1 = 14.9741 $\rm{d^{-1}}$ is newly detected. The amplitude of the light variations of \target is $\sim$ 0.06 mag, which indicates that this is a low-amplitude $δ$ Scuti star, but the ratio of F0/F1 is estimated as 0.7756 which is typical of HADS, and a slow amplitude growth is detected in F1 and $f_{3}$, which could be due to stellar evolution, suggesting that KIC 12602250 could be a post main sequence $δ$ Scuti which is crossing the instability strip for the first time.
Le Numérique et l'Intelligence Artificielle Appliqués aux Répertoires Musicaux du Moyen Âge Occidental
Creators: name: Roger, Kévin
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Music/history
subject: Deep learning
subject: Musicology
subject: YOLO
subject: Digital humanities
subject: Medieval history

description: L’essor de l’intelligence artificielle et des stratégies de deep learning ouvre de nouvelles perspectives pour l’étude des répertoires musicaux du Moyen Âge. Cette communication propose de présenter plusieurs projets et outils innovants s’inscrivant dans cette démarche. D’une part, les avancées du Cluster 6 Biblissima+ en matière de vision par ordinateur illustreront les progrès réalisés dans l’identification de parties musicales au sein d'anciens chansonniers. D’autre part, l’usage des Large Language Models (LLM) pour le traitement du latin et les analyses intertextuelles sera abordé à travers un projet se concentrant sur les motets du XIVe siècle. Cette présentation proposera pour finir quelques regards sur l’avenir de ces techniques numériques appliquées à la musicologie et, plus particulièrement, à l’étude des musiques anciennes.
description: Ce travail a bénéficié d'une aide de l'État gérée par l'Agence Nationale de la Recherche au titre du programme d'Investissements d'avenir portant la référence « ANR-21-ESRE-0005 » (ÉquipEx Biblissima+).
Similarity between the primary and secondary air-assisted liquid jet breakup mechanism
Creators: name: Wang, Y. J.
name: Im, Kyoung-Su
name: Fezzaa, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: we report an ultrafast synchrotron x-ray phase contrast imaging study of the primary breakup mechanism of a coaxial air-assisted water jet. We demonstrate that there exist great similarities in the phenomenology of primary breakup with that of the secondary breakup. Especially, a membrane-mediated breakup mechanism dominates the breakup process for a wide range of air speeds. This finding reveals the intrinsic connections of these two breakup regimes and has deep implications on the unified theoretical approach in treating the breakup mechanism of high speed liquid jet.
description: 15 pages, 4 figures
Ferromagnetism and spin polarized charge carriers in In$_{2}$O$_{3}$ thin films
Creators: name: Panguluri, Raghava P.
name: Kharel, P.
name: Sudakar, C.
name: Naik, R.
name: Suryanarayanan, R.
name: Naik, V. M.
name: Petukhov, A. G.
name: Nadgorny, B.
name: Lawes, G.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We present evidence for spin polarized charge carriers in In$_2$O$_3$ films. Both In$_2$O$_3$ and Cr doped In$_2$O$_3$ films exhibit room temperature ferromagnetism after vacuum annealing, with a saturation moment of approximately 0.5 emu/cm$^3$. We used Point Contact Andreev Reflection measurements to directly determine the spin polarization, which was found to be approximately 50$\pm$5% for both compositions. These results are consistent with suggestions that the ferromagnetism observed in certain oxide semiconductors may be carrier mediated.
description: 5 pages 5 figures
Model-independent constraints on superfluidity from the cooling neutron star in Cassiopeia A
Creators: name: Shternin, Peter S.
name: Ofengeim, Dmitry D.
name: Ho, Wynn C. G.
name: Heinke, Craig O.
name: Wijngaarden, M. J. P.
name: Patnaude, Daniel J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present a new model-independent (applicable for a broad range of equations of state) analysis of the neutrino emissivity due to triplet neutron pairing in neutron star cores. We find that the integrated neutrino luminosity of the Cooper Pair Formation (CPF) process can be written as a product of two factors. The first factor depends on the neutron star mass, radius and maximal critical temperature of neutron pairing in the core, $T_{Cn \mathrm{max}}$, but not on the particular superfluidity model; it can be expressed by an analytical formula valid for many nucleon equations of state. The second factor depends on the shape of the critical temperature profile within the star, the ratio of the temperature $T$ to $T_{Cn \mathrm{max}}$, but not on the maximal critical temperature itself. While this second factor depends on the superfluidity model, it obeys several model-independent constraints. This property allows one to analyse the thermal evolution of neutron stars with superfluid cores without relying on a specific model of their interiors. The constructed expressions allow us to perform a self-consistent analysis of spectral data and neutron star cooling theory. We apply these findings to the cooling neutron star in the Cassiopeia A supernova remnant using 14 sets of observations taken over 19 years. We constrain $T_{Cn\mathrm{max}}$ to the range of $ (5-10)\times 10^8$ K. This value depends weakly on the equation of state and superfluidity model, and will not change much if cooling is slower than the current data suggest. We also constrain the overall efficiency of the CPF neutrino luminosity.
description: 18 pages, 14 figures, 6 tables; accepted for publication in MNRAS
Dimensional asymptotics of effective actions on S^n, and proof of Bär-Schopka's conjecture
Creators: name: Møller, Niels Martin
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 58J52

description: We study the dimensional asymptotics of the effective actions, or functional determinants, for the Dirac operator D and Laplacians Δ+βR on round S^n. For Laplacians the behavior depends on ``the coupling strength'' β, and one cannot in general expect a finite limit of ζ'(0), and for the ordinary Laplacian, β=0, we prove it to be +\infty, for odd dimensions. For the Dirac operator, Bär and Schopka conjectured a limit of unity for the determinant ([BS]), i.e. \lim_{n\to\infty}\det(D, S^n_{\mathrm{can}})=1. We prove their conjecture rigorously, giving asymptotics, as well as a pattern of inequalities satisfied by the determinants. The limiting value of unity is a virtue of having ``enough scalar curvature'' and no kernel. Thus for the important (conformally covariant) Yamabe operator, β=(n-2)/(4(n-1)), the determinant tends to unity. For the ordinary Laplacian it is natural to rescale spheres to unit volume, since \lim_{k\to\infty}\det(Δ, S_\mathrm{rescaled}^{2k+1})=\frac{1}{2πe}.
description: 14 pages
Broadband complementary vibrational spectroscopy with cascaded intra-pulse difference frequency generation
Creators: name: Hashimoto, Kazuki
name: Badarla, Venkata Ramaiah
name: Imamura, Takayuki
name: Ideguchi, Takuro
Publisher: name: arXiv
Year: 2021
Subjects: subject: Optics (physics.optics)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: One of the essential goals of molecular spectroscopy is to measure all fundamental molecular vibrations simultaneously. To this end, one needs to measure broadband infrared (IR) absorption and Raman scattering spectra, which provide complementary vibrational information. A recently demonstrated technique called complementary vibrational spectroscopy (CVS) enables simultaneous measurements of IR and Raman spectra with a single device based on a single laser source. However, the spectral coverage was limited to ~1000 cm-1, which partially covers the spectral regions of the fundamental vibrations. In this work, we demonstrate a simple method to expand the spectral bandwidth of the CVS with a cascaded intra-pulse difference-frequency generation (IDFG). Using the system, we measure broadband CVS spectra of organic liquids spanning over 2000 cm-1, more than double the previous study.
Initial determination of the spins of the gluino and squarks at LHC
Creators: name: Kane, Gordon L.
name: Petrov, Alexey A.
name: Shao, Jing
name: Wang, Lian-Tao
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: In principle particle spins can be measured from their production cross sections once their mass is approximately known. The method works in practice because spins are quantized and cross sections depend strongly on spins. It can be used to determine, for example, the spin of the top quark. Direct application of this method to supersymmetric theories will have to overcome the challenge of measuring mass at the LHC, which could require high statistics. In this article, we propose a method of measuring the spins of the colored superpatners by combining rate information for several channels and a set of kinematical variables, without directly measuring their masses. We argue that such a method could lead to an early determination of the spin of gluino and squarks. This method can be applied to the measurement of spin of other new physics particles and more general scenarios.
description: 23 pages, 8 figures, minor changes
Elastic scattering measurements for the $^{10}$C + $^{208}$Pb system at E$_{\rm lab}$ = 66 MeV
Creators: name: Linares, R
name: Sinha, Mandira
name: Cardozo, E N
name: Guimaraes, V
name: Rogachev, G
name: Hooker, J
name: Koshchiy, E
name: Ahn, T
name: Hunt, C
name: Jayatissa, H
name: Upadhyayula, S
name: Roeder, B
name: Saastomoinen, A
name: Lubian, J
name: Rodriguez-Gallardo, M
name: Casal, J
name: Pires, KCC
name: Assuncao, M
name: Penionzhkevich, Y
name: Lukyanov, S
Publisher: name: arXiv
Year: 2021
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Background: The influence of halo structure of $^6$He, $^8$B, $^{11}$Be and $^{11}$Li nuclei in several mechanisms such as direct reactions and fusion is already established, although not completely understood. The influence of the $^{10}$C Brunnian structure is less known. Purpose: To investigate the influence of the cluster configuration of $^{10}$C on the elastic scattering at an energy close to the Coulomb barrier. Methods: We present experimental data for the elastic scattering of the $^{10}$C+$^{208}$Pb system at $E_{\rm lab}$ = 66 MeV. The data are compared to the three- and the four-body continuum-discretized coupled-channels calculations assuming $^9$B+$p$, $^6$Be+$α$ and $^8$Be+$p$+$p$ configurations. Results: The experimental angular distribution of the cross sections shows the suppression of the Fresnel peak that is reasonably well reproduced by the continuum-discretized coupled-channels calculations. However, the calculations underestimate the cross sections at backward angles. Couplings to continuum states represent a small effect. Conclusions: The cluster configurations of $^{10}$C assumed in the present work are able to describe some of the features of the data. In order to explain the data at backward angles, experimental data for the breakup and an extension of theoretical formalism towards a four-body cluster seem to be in need to reproduce the measured angular distribution.
description: 26 pages, 9 figures
Top-Antitop cross section measurement in the di-lepton decay channel with ATLAS
Creators: name: Ta, Duc Bao
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present simulations of the production cross-section measurement of top-antitop pairs in the di-leptonic decay channel with the ATLAS detector. This study uses the Commissioning Service Challenge (CSC) data, which is the latest and centrally produced Monte-Carlo data set to validate the detector simulation before the actual data taking. The signal process was generated with MC@NLO and important background processes were studied. A cut and count method and two likelihood methods were employed to measure the cross section and important systematic effects were investigated. The expected statistical and systematic errors for a luminosity of 100 $\ipb$ are also given.
description: 3 pages
Bifurcations and bistability in cavity assisted photoassociation of Bose-Einstein condensed molecules
Creators: name: Jaaskelainen, Markku
name: Jeong, Jaeyoon
name: Search, Christopher P.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We study the photo-association of Bose-Einstein condensed atoms into molecules using an optical cavity field. The driven cavity field introduces a new dynamical degree of freedom into the photoassociation process, whose role in determining the stationary behavior has not previously been considered. The semiclassical stationary solutions for the atom and molecules as well as the intracavity field are found and their stability and scaling properties are determined in terms of experimentally controllable parameters including driving amplitude of the cavity and the nonlinear interactions between atoms and molecules. For weak cavity driving, we find a bifurcation in the atom and molecule number occurs that signals a transition from a stable steady state to nonlinear Rabi oscillations. For a strongly driven cavity, there exists bistability in the atom and molecule number.
Off-Shell and Interference Effects for SUSY Particle Production
Creators: name: Reuter, Jurgen
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that the narrow-width approximation is insufficient for describing production of supersymmetric particles at the ILC. Especially when cuts are taken into account to extract signals using the narrow-width approximation can be wrong by an order of magnitude.
description: Talk given at LCWS/ILC 2007 at DESY, Hamburg
Verified Null-Move Pruning
Creators: name: David-Tabibi, Omid
name: Netanyahu, Nathan S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences
subject: I.2.8

description: In this article we review standard null-move pruning and introduce our extended version of it, which we call verified null-move pruning. In verified null-move pruning, whenever the shallow null-move search indicates a fail-high, instead of cutting off the search from the current node, the search is continued with reduced depth. Our experiments with verified null-move pruning show that on average, it constructs a smaller search tree with greater tactical strength in comparison to standard null-move pruning. Moreover, unlike standard null-move pruning, which fails badly in zugzwang positions, verified null-move pruning manages to detect most zugzwangs and in such cases conducts a re-search to obtain the correct result. In addition, verified null-move pruning is very easy to implement, and any standard null-move pruning program can use verified null-move pruning by modifying only a few lines of code.
description: 9 pages
The $\texttt{Abacus}$ Cosmological $N$-body Code
Creators: name: Garrison, Lehman H.
name: Eisenstein, Daniel J.
name: Ferrer, Douglas
name: Maksimova, Nina A.
name: Pinto, Philip A.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present $\texttt{Abacus}$, a fast and accurate cosmological $N$-body code based on a new method for calculating the gravitational potential from a static multipole mesh. The method analytically separates the near- and far-field forces, reducing the former to direct $1/r^2$ summation and the latter to a discrete convolution over multipoles. The method achieves 70 million particle updates per second per node of the Summit supercomputer, while maintaining a median fractional force error of $10^{-5}$. We express the simulation time step as an event-driven "pipeline", incorporating asynchronous events such as completion of co-processor work, Input/Output, and network communication. $\texttt{Abacus}$ has been used to produce the largest suite of $N$-body simulations to date, the $\texttt{AbacusSummit}$ suite of 60 trillion particles (Maksimova et al., 2021), incorporating on-the-fly halo finding. $\texttt{Abacus}$ enables the production of mock catalogs of the volume and resolution required by the coming generation of cosmological surveys.
description: 29 pages, 19 figures. Published in MNRAS
Preparation and evaluation of functionally enriched squash from Flacourtia montana- An underutilized wild edible fruit for commercialization
Creators: name: Rasmi C. K
name: R, Ajay
name: P. A. Jose
Publisher: name: Zenodo
Year: 2021
Subjects: Flacourtia montana , underutilized wild edible fruit, squash, commercialization

description: Flacourtia montana J. Graham (Salicaceae) - an underutilized wild edible fruit tree , endemic to Western Ghats, India.The fruits are rich in nutritional and medicinal supplements however lacks commercial value due to paucity of studies. The objective of the present study is to formulate and evaluate a processed product, squash from the ripened fruits of the species for food security and sustainable development.Three types of squash T0, T1 and T2 were prepared. Organoleptic evaluation and physico-chemical analysis done.Product acceptability was rated as T0>T1>T2. Squash (T0) is sufficiently enriched with Ascorbic acid, Protein, Crude fiber etc. Diet rich in these nutrients have much health lead.The processed product is promising for value addition.
An atomic scale study of Si-doped AlAs by cross-sectional scanning tunneling microscopy and density functional theory
Creators: name: Tjeertes, D.
name: Vela, A.
name: Verstijnen, T. J. F.
name: Banfi, E. G.
name: van Veldhoven, P. J.
name: Menzes, M. G.
name: Capaz, R. B.
name: Koiller, B.
name: Koenraad, P. M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Silicon (Si) donors in GaAs have been the topic of extensive studies since Si is the most common and well understood n-type dopant in III-V semiconductor devices and substrates. The indirect bandgap of AlAs compared to the direct one of GaAs leads to interesting effects when introducing Si dopants. Here we present a study of cross-sectional scanning tunneling microscopy (X-STM) and density functional theory (DFT) calculations to study Si donors in AlAs at the atomic scale. Based on their crystal symmetry and contrast strengths, we identify Si donors up to four layers below the (110) surface of AlAs. Interestingly, their short-range local density of states (LDOS) is very similar to Si atoms in the (110) surface of GaAs. Additionally we show high-resolution images of Si donors in all these layers. For empty state imaging, the experimental and simulated STM images based on DFT show excellent agreement for Si donor up to two layers below the surface.
Arte e Tecnologia no Pós-pandemia: Discutindo algumas exposições virtuais brasileiras ocorridas em 2021
Creators: name: Dillÿ, Thaíssa
name: Hora, Daniel
Publisher: name: Labfront/UEMG
Year: 2023

description: As sociedades contemporâneas têm sido transformadas pelas novas mídias e tecnologias digitais (CASTELLS, 1999), e o campo da arte não permaneceu isento aos impactos (LÉVY, 2000; MACHADO, 2010). Recentemente, devido a pandemia de Covid-19, o setor artístico foi afetado pela transição do analógico para o digital, ao ter de intensificar suas atividades no ambiente virtual. Por meio de pesquisa para a Universidade Federal do Espírito Santo (UFES), analisou-se como as mídias digitais foram usadas por instituições artísticas brasileiras em 2021. O levantamento, efetuado entre abril e julho de 2022, obteve amostragem de 40 exposições digitais, cujos dados foram analisados a fim de compreendermos as características dessas curadorias. O presente artigo apresenta aspectos de três exposições virtuais ocorridas nesse recorte temporal. Para fundamentação teórica, utilizaram-se autores como: Machado (2010), Arantes (2012), Lévy (2000; 2010), e Castells (1999). Com isso, este trabalho apresenta reflexão sobre desafios e oportunidades do sistema da arte no Brasil em 2021.
title: Shiitake :
title: Principes directeurs pour la conduite de l’examen de la distinction, de l’homogénéité et de la stabilité.
titleType: Subtitle
Creators: name: International Union For The Protection Of New Varieties Of Plants,
Publisher: name: International Union for the Protection of New Varieties of Plants,
Year: 0
Subjects: Plants
New Varieties of Plants
Shiitake

description: Ces principes directeurs (“principes directeurs d’examen”) visent à approfondir les principes énoncés dans l’introduction générale (document TG/1/3) et dans les documents TGP qui s’y rapportent afin de donner des indications concrètes détaillées pour l’harmonisation de l’examen de la distinction, de l’homogénéité et de la stabilité (DHS) et, en particulier, à identifier des caractères convenant à l’examen DHS et à la production de descriptions variétales harmonisées.
Improved constraints on dark energy from Chandra X-ray observations of the largest relaxed galaxy clusters
Creators: name: Allen, S. W.
name: Rapetti, D. A.
name: Schmidt, R. W.
name: Ebeling, H.
name: Morris, G.
name: Fabian, A. C.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present constraints on the mean matter density, Omega_m, dark energy density, Omega_de, and the dark energy equation of state parameter, w, using Chandra measurements of the X-ray gas mass fraction (fgas) in 42 hot (kT>5keV), X-ray luminous, dynamically relaxed galaxy clusters spanning the redshift range 0.05
description: Published in MNRAS. 20 pages, 11 figures. The data and analysis code (in the form of a patch to CosmoMC) are now available at http://www.stanford.edu/~drapetti/fgas_module/
$δ$ meson effects on neutron stars in the modified quark-meson coupling model
Creators: name: Niu, Zhong-Ming
name: Gao, Chun-Yuan
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The properties of neutron stars are investigated by including $δ$ meson field in the Lagrangian density of modified quark-meson coupling model. The $Σ^-$ population with $δ$ meson is larger than that without $δ$ meson at the beginning, but it becomes smaller than that without $δ$ meson as the appearance of $Ξ^-$. The $δ$ meson has opposite effects on hadronic matter with or without hyperons: it softens the EOSes of hadronic matter with hyperons, while it stiffens the EOSes of pure nucleonic matter. Furthermore, the leptons and the hyperons have the similar influence on $δ$ meson effects. The $δ$ meson increases the maximum masses of neutron stars. The influence of $(σ^*,ϕ)$ on the $δ$ meson effects are also investigated.
description: 10 pages, 6 figures, 4 tables
A Data-Driven Reconstruction Technique based on Newton's Method for Emission Tomography
Creators: name: Koutsantonis, Loizos
name: Carneiro, Tiago
name: Kieffer, Emmanuel
name: Pinel, Frederic
name: Bouvry, Pascal
Publisher: name: arXiv
Year: 2021
Subjects: subject: Image and Video Processing (eess.IV)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Medical Physics (physics.med-ph)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: In this work, we present the Deep Newton Reconstruction Network (DNR-Net), a hybrid data-driven reconstruction technique for emission tomography inspired by Newton's method, a well-known iterative optimization algorithm. The DNR-Net employs prior information about the tomographic problem provided by the projection operator while utilizing deep learning approaches to a) imitate Newton's method by approximating the Newton descent direction and b) provide data-driven regularisation. We demonstrate that DNR-Net is capable of providing high-quality image reconstructions using data from SPECT phantom simulations by applying it to reconstruct images from noisy sinograms, each one containing 24 projections. The Structural Similarity Index (SSIM) and the Contrast-to-Noise ratio (CNR) were used to quantify the image quality. We also compare our results to those obtained by the OSEM method. According to the quantitative results, the DNR-Net produces reconstructions comparable to the ones produced by OSEM while featuring higher contrast and less noise.
description: 7 pages, 4 figures, Proceedings
F-term SUSY Breaking and Moduli
Creators: name: Lawrence, Albion
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the coupling of heavy moduli fields to light fields when the dynamics of the latter, absent such couplings, yields metastable vacua. We show that the survival of the vacuum structure of the local model depends nontrivially on the cross-couplings of the two sectors. In particular we find that for "local" models (such as those realized by D-branes in type II string theories) with metastable vacua breaking supersymmetry via F-terms, cross-coupling of the two sectors at an intermediate scale can push the metastable vacuum outside of the regime of the effective field theory. We parametrize the region in which the metastable vacua are safe. We the show that sufficiently small cross-couplings can be made natural. Finally, we briefly discuss the role of moduli in stringy realizations of "retrofitted" SUSY-breaking sectors.
description: 14 pages,uses harvmac.tex; small corrections made in v2
Debt Swapping for Risk Mitigation in Financial Networks
Creators: name: Papp, Pál András
name: Wattenhofer, Roger
Publisher: name: arXiv
Year: 2021
Subjects: subject: Risk Management (q-fin.RM)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Portfolio Management (q-fin.PM)
subject: FOS: Economics and business
subject: FOS: Computer and information sciences
subject: J.4
subject: 91G45

description: We study financial networks where banks are connected by debt contracts. We consider the operation of debt swapping when two creditor banks decide to exchange an incoming payment obligation, thus leading to a locally different network structure. We say that a swap is positive if it is beneficial for both of the banks involved; we can interpret this notion either with respect to the amount of assets received by the banks, or their exposure to different shocks that might hit the system. We analyze various properties of these swapping operations in financial networks. We first show that there can be no positive swap for any pair of banks in a static financial system, or when a shock hits each bank in the network proportionally. We then study worst-case shock models, when a shock of given size is distributed in the worst possible way for a specific bank. If the goal of banks is to minimize their losses in such a worst-case setting, then a positive swap can indeed exist. We analyze the effects of such a positive swap on other banks of the system, the computational complexity of finding a swap, and special cases where a swap can be found efficiently. Finally, we also present some results for more complex swapping operations when the banks swap multiple contracts, or when more than two banks participate in the swap.
Weak Deflection angle and Shadow by Tidal Charged Black Hole
Creators: name: Javed, Wajiha
name: Hamza, Ali
name: Övgün, Ali
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this article, we calculate the deflection angle of tidal charged black hole (TCBH) in weak field limits. First we obtain the Gaussian optical curvature and then apply the Gauss-Bonnet theorem on it. With the help of Gibbons-Werner method, we are able to calculate the light's deflection angle by TCBH in weak field limits. After calculating the deflection angle of light, we check the graphical behavior of TCBH. Moreover, we further find the light's deflection angle in the presence of plasma medium and also check the graphical behavior in the presence of plasma medium. Moreover, we investigate the shadow of TCBH. For calculating the shadow, we first find the null geodesics around the TCBH and then find its shadow radius. We also obtain TCBH's shadow in the plasma medium. Hence, we discuss the shadow of the TCBH using the $M87^{*}$ parameters announced by the Event Horizon Telescope.
description: 14 pages, 4 figures. Accepted for publication in Universe. https://www.mdpi.com/2218-1997/7/10/385
DEP Bulletin - 2024 - Volume 48 Issue 16
Creators: name: No Name Supplied
Publisher: name: No Publisher Supplied
Year: 2024

description: The DEP bulletin is a semi-monthly publication of the New Jersey Department of Environmental Protection. It contains a list of construction permit applications recently filed or acted upon by the Department along with a calendar of events of interest, a schedule of public hearings, and Environmental Impact Statements acted upon during the period.
Fabrication and Performance Tests of a Segmented P-Type HPGe Detector
Creators: name: King, George S.
name: Avignone, Frank T.
name: Cox, Christopher E.
name: Hossbach, Todd W.
name: Jennings, Wayne
name: Reeves, James H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: A p-type HPGe detector has been segmented by cutting, with a diamond saw, and etching six circumferential grooves through the Li-diffused dead layer. The degree of segmentation was tested with the 88 keV gamma rays from a well-collimated source of 109Cd. The fraction of events, recognized as occurring in more than one segment, and rejected from the energy interval 2038 +/- 5 keV, was measured as 0.59.
description: Submitted to Nuclear Instruments and Methods, Section A
A new proof of some matrix inequalities
Creators: name: Agama, Theophilus
Publisher: name: arXiv
Year: 2021
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics

description: In this paper we give alternate proofs of some well-known matrix inequalities. In particular, we show that under certain conditions the inequality holds \begin{align}\sum \limits_{λ_i\in \mathrm{Spec}(ab^{T})}\mathrm{min}\{\log |t-λ_i|\}_{[||a||,||b||]}&\leq \# \mathrm{Spec}(ab^T)\log\bigg(\frac{||b||+||a||}{2}\bigg)\nonumber \\&+\frac{1}{||b||-||a||}\sum \limits_{λ_i\in \mathrm{Spec}(ab^T)}\log \bigg(1-\frac{2λ_i}{||b||+||a||}\bigg).\nonumber \end{align}Also under the same condition, the inequality also holds\begin{align}\int \limits_{||a||}^{||b||}\log|\mathrm{det}(ab^{T}-tI)|dt&\leq \# \mathrm{Spec}(ab^T)(||b||-||a||)\log\bigg(\frac{||b||+||a||}{2}\bigg)\nonumber \\&+\sum \limits_{λ_i\in \mathrm{Spec}(ab^T)}\log \bigg(1-\frac{2λ_i}{||b||+||a||}\bigg).\nonumber \end{align}
description: 5 pages; Accepted for publication in Operators and Matrices
AbacusSummit: A Massive Set of High-Accuracy, High-Resolution $N$-Body Simulations
Creators: name: Maksimova, Nina A.
name: Garrison, Lehman H.
name: Eisenstein, Daniel J.
name: Hadzhiyska, Boryana
name: Bose, Sownak
name: Satterthwaite, Thomas P.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present the public data release of the AbacusSummit cosmological $N$-body simulation suite, produced with the $\texttt{Abacus}$ $N$-body code on the Summit supercomputer of the Oak Ridge Leadership Computing Facility. $\texttt{Abacus}$ achieves $\mathcal{O}\left(10^{-5}\right)$ median fractional force error at superlative speeds, calculating 70M particle updates per second per node at early times, and 45M particle updates per second per node at late times. The simulation suite totals roughly 60 trillion particles, the core of which is a set of 139 simulations with particle mass $2\times10^{9}\,h^{-1}\mathrm{M}_\odot$ in box size $2\,h^{-1}\mathrm{Gpc}$. The suite spans 97 cosmological models, including Planck 2018, previous flagship simulation cosmologies, and a linear derivative and cosmic emulator grid. A sub-suite of 1883 boxes of size $500\,h^{-1}\mathrm{Mpc}$ is available for covariance estimation. AbacusSummit data products span 33 epochs from $z=8$ to $0.1$ and include lightcones, full particle snapshots, halo catalogs, and particle subsets sampled consistently across redshift. AbacusSummit is the largest high-accuracy cosmological $N$-body data set produced to date.
description: 30 pages, 10 figures, 6 tables. Published in MNRAS. Data available at https://abacusnbody.org and https://abacussummit.readthedocs.io/en/latest/data-access.html (DOI: 10.13139/OLCF/1811689)
MagTense: a micromagnetic framework using the analytical demagnetization tensor
Creators: name: Bjørk, R.
name: Poulsen, E. B.
name: Nielsen, K. K.
name: Insinga, A. R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present the open source micromagnetic framework, MagTense, which utilizes a novel discretization approach of rectangular cuboid or tetrahedron geometry "tiles" to analytically calculate the demagnetization field. Each tile is assumed to be uniformly magnetized, and from this assumption only, the demagnetization field can be analytically calculated. Using this novel approach we calculate the solution to the mmag standard micromagnetic problems 2, 3 and 4 and find that the MagTense framework accurately predicts the solution to each of these. Finally, we show that simulation time can be significantly improved by performing the dense demagnetization tensor matrix multiplications using NVIDIA CUDA.
description: 10 pages, 7 figures
Análisis de datos mediante la generación e interpretación de mapas de ciencia con VOSviewer
Creators: name: Arroyo-Machado, Wenceslao
Publisher: name: Zenodo
Year: 2021
Subjects: análisis de redes
mapas de la ciencia
VOSviewer

description: Diapositivas del curso realizado el 23 y 24 de noviembre de 2021 en la Universidad de Murcia (UMA), organizado por la Asociación Jovenes Investigadores de la UMU.
Beam propagation simulation of phased laser arrays with atmospheric perturbations
Creators: name: Hettel, Will
name: Meinhold, Peter
name: Suen, Jonathan Y.
name: Srinivasan, Prashant
name: Krogen, Peter
name: Wirth, Allan
name: Lubin, Philip
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Directed energy phased array (DEPA) systems have been proposed for novel applications such as beaming optical power for electrical use on remote sensors, rovers, spacecraft and future moon bases, as well as planetary defense against asteroids and photonic propulsion up to relativistic speeds. All such scenarios involve transmission through atmosphere and beam perturbations due to turbulence which must be quantified. Numerical beam propagation and feedback control simulations were performed using an algorithm optimized for efficient calculation of real-time beam dynamics in a Kolmogorov atmosphere. Results were used to quantify the effectiveness of the system design with different degrees of atmospheric turbulence and zenith angles, and it was found that a large aperture DEPA system placed at a high altitude site is capable of producing a stable diffraction limited spot (Strehl > 0.8) on space-based targets for Fried length r_0 > 10 cm (@500nm) and zenith angles up to 60 degrees depending on atmospheric conditions. These results are promising for the next generation of power beaming and deep space exploration applications.
description: Link to journal publication: https://doi.org/10.1364/AO.422337 Visualization 1: https://youtu.be/hGAtCqbNr3Y Visualization 2: https://youtu.be/SYl1_XKnRwo Visualization 3: https://youtu.be/bKtHZxhzkyo Visualization 4: https://youtu.be/KfE92pJ11Q0
Dynamic Opening of a Gap in Dirac Surface States of the Thin-Film 3D Topological Insulator Bi2Se3 Driven by the Dynamic Rashba Effect
Creators: name: Glinka, Yuri D.
name: He, Tingchao
name: Sun, Xiao Wei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Optical control of Dirac surface states (SS) in topological insulators (TI) remains one of the most challenging problems governing their potential applications in novel electronic and spintronic devices. Here, using visible-range transient absorption spectroscopy exploiting ~340 nm (~3.65 eV) pumping, we provide evidence for dynamic opening of a gap in Dirac SS of the thin-film 3D TI Bi2Se3, which has been induced by the dynamic Rashba effect occurring in the film bulk with increasing optical pumping power (photoexcited carrier density). The observed effect appears through the transient absorption band associated with inverse-bremsstrahlung-type free carrier absorption in the gapped Dirac SS. We have also recognized experimental signatures of the existence of the higher energy Dirac SS in the 3D TI Bi2Se3 (in addition to those known as SS1 and SS2) with energies of ~2.7 and ~3.9 eV (SS3 and SS4). It is evidenced that the dynamic gap opening has the same effect on the Dirac SS occurring at any energy.