cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Enumerating Copies in the First Gribov Region on the Lattice in up to four Dimensions
Creators: name: Mehta, Dhagash
name: Schröck, Mario
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The covariant gauges are known to suffer from the Gribov problem: even after fixing a gauge non-perturbatively, there may still exist residual copies which are physically equivalent to each other, called Gribov copies. While the influence of Gribov copies in the relevant quantities such as gluon propagators has been heavily debated in recent studies, the significance of the role they play in the Faddeev--Popov procedure is hardly doubted. We concentrate on Gribov copies in the first Gribov region, i.e., the space of Gribov copies at which the Faddeev--Popov operator is strictly positive (semi)definite. We investigate compact U($1$) as the prototypical model of the more complicated standard model group SU($N_{c}$). With our Graphical Processing Unit (GPU) implementation of the relaxation method we collect up to a few million Gribov copies per orbit. We show that the numbers of Gribov copies even in the first Gribov region increase exponentially in two, three and four dimensions. Furthermore, we provide strong indication that the number of Gribov copies is gauge orbit dependent.
description: 8 pages, 7 figures. V2: version accepted at PRD
20 ans de radio logicielle, quelles réalités ?
Creators: name: Moi, Christophe
name: Palicot, Jacques
Publisher: name: SEE
Year: 2013

description: Nous venons de fêter ces dernières années le centenaire de plusieurs grandes étapes de l’histoire des radio-communications : le prix Nobel de Gugliemo Marconi (1909), les premiers événements historiques associés aux transmissions radio (par exemple le SOS qui a permis le sauvetage de 700 passagers du Titanic le 15 avril 1912), l’invention de la triode par Lee De Forest en 1907. C’est pour nous l’occasion de faire le point sur l’une des dernières évolutions technologiques qu’a connue la radio : la radio logicielle [1]. En effet, de la même manière que le moteur automobile repose depuis plus de 100 ans sur le même principe (explosion) et les mêmes éléments mécaniques (pistons, soupapes, vilebrequin, etc.), la radio repose sur la même architecture (superhétérodyne) et les mêmes éléments électroniques (ampliﬁcateurs, mélangeurs, ﬁltres, etc.). Des évolutions technologiques, comme le transistor, ont bien sûr permis de miniaturiser et d’augmenter les performances, mais en restant cependant sur la même base de composants électroniques discrets. C’est sur ce dernier point qu’intervient la rupture de la radio logicielle. En effet, l’évolution phénoménale des technologies numériques pendant les années 1980 a permis de remettre en cause ce paradigme bien établi et dès le début desannées 1990 1 certains traitements en bande de base ont commencé à être exécutés et regroupés dans des circuits intégrés numériques. Cette évolution a mené à la radio logicielle, dont les idées principales sont que le circuit de traitement est un processeur généraliste et qu’une partie des traitements jusque-là assurés en analogique par plusieurs composants discrets deviennent réalisables par un seul processeur.
Some like it triaxial: the universality of dark matter halo shapes and their evolution along the cosmic time
Creators: name: Despali, Giulia
name: Giocoli, Carlo
name: Tormen, Giuseppe
Publisher: name: arXiv
Year: 2014
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We present a detailed analysis of dark matter halo shapes, studying how the distributions of ellipticity, prolateness and axial ratios evolve as a function of time and mass. With this purpose in mind, we analysed the results of three cosmological simulations, running an ellipsoidal halo finder to measure triaxial halo shapes. The simulations have different scales, mass limits and cosmological parameters, which allows us to ensure a good resolution and statistics in a wide mass range, and to investigate the dependence of halo properties on the cosmological model. We confirm the tendency of haloes to be prolate at all times, even if they become more triaxial going to higher redshifts. Regarding the dependence on mass, more massive haloes are also less spherical at all redshifts, since they are the most recent forming systems and so still retain memory of their original shape at the moment of collapse. We then propose a rescaling of the shape-mass relations, using the variable $ν= δ_{c}/σ$ to represent the mass, which absorbs the dependence on both cosmology and time, allowing to find universal relations between halo masses and shape parameters (ellipticity, prolateness and the axial ratios) which hold at any redshift. This may be very useful to determine prior distributions of halo shapes for observational studies.
description: 11 pages, 9 figures, accepted for publication on MNRAS - Fig.1 updated, minor changes
One-pot synthesis of a new series of 2-phenylimidazo[1,2-a]pyridine-3-yl derivatives
Creators: name: Olyaei, Abolfazl
name: Shafie, Zahra
name: Vessally, Esmail
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Hematology

description: An efficient procedure for the one-pot three-component synthesis of some new 2-phenylimidazo[1,2-a]pyridine-3-yl derivatives using readily available phenylglyoxal monohydrate, 2-aminopyridines and N,N-dimethylbarbituric acid/thiobarbituric acid/Meldrum’s acid in glacial acetic acid as solvent as well as catalyst or ethanol under reflux conditions is reported.
Additional file 1 of Prevalence of mental disorders, associated co-morbidities, health care knowledge and service utilization in Rwanda – towards a blueprint for promoting mental health care services in low- and middle-income countries?
Creators: name: Kayiteshonga, Yvonne
name: Sezibera, Vincent
name: Mugabo, Lambert
name: Iyamuremye, Jean Damascène
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Plates-formes matérielles pour la radio logicielle : contraintes et exemples de solutions
Creators: name: Noguet, Dominique
Publisher: name: SEE
Year: 2013

description: Le concept de Radio Logicielle (RL), introduit dans [1], est le fruit de plusieurs facteurs qui émergent dans les années 1990. Tout d’abord, le constat que les systèmes radio ont évolué du monde de l’analogique vers le numérique, basculement qui offre des améliorations de performance (meilleure efﬁcacité spectrale grâce à des techniques avancées de modulation/codage), un coût plus faible des équipements, la facilitation de la maintenance et de la mise à jour des fonctions, l’optimisation des couches physique et d’accès au medium (MAC) en fonction des conditions d’utilisation ou d’usage, etc. Ce dernier point a conduit au développement de nombreuses normes visant des domaines d’application variés, radio cellulaire, réseaux locaux, boucle locale, diffusion, réseaux personnels, etc. Il est alors rapidement devenu nécessaire d’envisager des équipements capables de traiter ces différentes normes. Un autre facteur ayant favorisé le concept de RL est la croissance en puissance de calcul des circuits numériques, offrant autant de nouvelles possibilités d’implémentation. La loi empirique de Moore [2], non démentie depuis les années 1960, permettait alors des projections sur les capacités futures des circuits semi-conducteurs avec une croissance exponentielle – un facteur 2 tous les 18 mois. Dès lors les fondements de l’engouement pour une radio reconﬁgurable capable de traiter de multiples normes en capitalisant sur les évolutions de la micro-électronique étaient posés, et la RL constitue la proposition d’un concept général et idéal pour y répondre.
Futures normes : un cadre pour faciliter l’application de la radio cognitive
Creators: name: Mueck, Markus
Publisher: name: SEE
Year: 2013

description: Les activités de normalisation se multiplient dans le domaine de la radio cognitive. A l’ETSI 1 le groupe RRS 2 développe des normes pour pouvoir utiliser les « espaces blancs » de la télévision [1], ou pour exploiter de nouvelles bandes de fréquences en appliquant le partage du spectre pour les services cellulaires [2]. A l’IEEE, DySPAN travaille également sur des solutions visant à mieux exploiter les « espaces blancs »[3] ; le groupe déﬁnit des interfaces pour l’analyse spectrale (“spectrum sensing”), et les structures des données correspondantes [4]. L’IEEE 802.11af [5] est dans sa phase ﬁnale et bientôt sera publiée une extension permettant l’utilisation du Wi-Fi dans les espaces blancs de la télévision aux États Unis.
Hadronic $b^\prime$ search at the LHC with top and W taggers
Creators: name: Yang, Shuo
name: Jiang, Ji
name: Yan, Qi-Shu
name: Zhao, Xiaoran
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the sensitivity of a down type quark $b^{\prime}$ via process $pp\rightarrow b^{\prime}\bar{b^{\prime}} \rightarrow tW^-\bar{t}W^+$ using jet substructure methods at the LHC with the collision energy $\sqrt{s}=14$ TeV. We consider the case that the $b^\prime$ is heavy (say from 800 GeV to 1500 GeV) and concentrate on the feasibility of the full hadronic mode. Both top tagger (the HEP top tagger) and W tagger (the CMS W-tagging) are used to reconstruct all objects in the final states. In order to suppress huge SM background events and take into account various cases with different number of boosted objects, we propose a comprehensive reconstruction procedure so as to extract the most crucial observables of the signal events. When $b^\prime$ mass is 1 TeV, it is found that with a 200 fb$^{-1}$ dataset, the LHC may be able to detect the $b^\prime$ with a significance up to $10$ or better. With a 3000 $fb^{-1}$ dataset, the LHC may be able to probe the $b^\prime$ with a mass around up to 2 TeV, only by using the hadronic mode.
description: 23 pages,8 figures, 4 tables. v2: discussions and references added, typos corrected, Accepted by JHEP
Looking for nebular He II emission south of the multiple-massive star system, HD 5980
Creators: name: Sixtos, Andres
name: Wofford, Aida
name: Sanders, Andreas A. C.
name: Peimbert, Antonio
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The nebular He II λ1640 emission line is observed in star forming galaxies out to large distances and can be used to constrain the properties of sources of He+ ionizing photons. For this purpose, it is crucial to understand which are the main stellar sources of these photons. In some nearby metal poor starburst galaxies, nebular He II λ4686 (optical equivalent) is accompanied by a broad underlying component, which is generally attributed to formation in the winds of classical (He burning) Wolf Rayet stars, primarily of the WN subtype. In such cases, the origin of the nebular component has been proposed to be the escape of He+ ionizing photons from the winds of the WN stars, at least partially. We use archival long slit observations obtained with Focal Reducer Low Dispersion Spectrograph (FORS1) on the Very Large Telescope to look for nebular He II λ4686 emission south of the WN6h + WN6(7) close binary in HD 5980. We only find broad He II λ4686 emission, as far as aprox. 7.6 pc from the binary. A comparison with observations obtained with Space Telescope Imaging Spectrograph (STIS) on the Hubble Space Telescope, at a similar orbital phase, shows that the FORS1 broad He II emission is likely contamination from the multiple star system HD 5980. We use models to show that no significant He+ ionizing flux is expected from the WN stars in HD 5980 and that when similar stars are present in a coeval stellar population, the O stars can be far greater emitters of He+ ionizing radiation.
description: 17 pages, 16 figures
À propos des applications de la radio cognitive
Creators: name: Martret, Christophe Le
Publisher: name: SEE
Year: 2013

description: Cet article traite des applications de la radio cognitive (RC) à la fois dans le domaine civil et militaire au travers du prisme de la réglementation. Nous présenterons d’abord le concept de la RC telle qu’elle a été proposée par son inventeur Joe Mitola III en 1999. Puis nous analyserons et identiﬁerons ses usages potentiels aujourd’hui. Le reste de l’article sera dédié aux applications de la RC dans le contexte de l’optimisation de l’utilisation du spectre qui est une des applications phare du moment. Nous rappellerons brièvement le cadre réglementaire de la gestion des fréquences qui encadre la mise en œuvre des nouveaux systèmes de RC. Nous passerons ensuite en revue successivement les applications civiles puis militaires de la RC appliquée à la gestion des fréquences 1 . L’auteur ne prétend pas être exhaustif dans les cas présentés et ses interprétations n’engagent que lui même.
Additional file 1 of Forensic investigation of microtraces on an item of Dutch eighteenth century clothing in the Rijksmuseum collection
Creators: name: Goedhart, Yoram Ray
name: Keune, Katrien
name: Meijer, Suzan
name: van Asten, Arian
Publisher: name: figshare
Year: 2022
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 1. Additional figures S1–S18 and additional tables S1, S2.
Théorie des jeux non-coopératifs et radio cognitive
Creators: name: Lasaulce, Samson
Publisher: name: SEE
Year: 2013

description: L’essence même de la théorie des jeux est l’étude des interactions entre plusieurs preneurs de décisions dont les décisions sont interdépendantes : ce qu’obtient un preneur de décision ou joueur ne dépend pas seulement de ce qu’il fait mais aussi de ce que font les autres joueurs. En radio cognitive, les émetteurs peuvent être vus comme des preneurs de décisions qui doivent choisir leurs paramètres radio. Ces derniers peuvent typiquement inclure le niveau de puissance du signal d’émission, les portions du spectre radio exploitées, les périodes d’émissions, le type de modulation utilisée, etc. Lorsque plusieurs émetteurs utilisent une partie commune du spectre radio en même temps et dans une même zone géographique, les performances associées à une communication entre un émetteur donné avec ses récepteurs d’intérêt dépendent généralement à la fois de la stratégie d’émission de l’émetteur lui-même (par exemple du niveau de puissance du signal d’émission) mais aussi des stratégies des autres émetteurs. Ainsi le fait que des ressources radio communes soient partagées en radio cognitive, que ceci génère de l’interférence ou non, les décisions des émetteurs munis de radio cognitive sont naturellement interdépendantes. Il n’est donc pas étonnant que la théorie des jeux joue un rôle d’importance croissante dans le domaine de la radio cognitive [1] [2]. Mais ce raisonnement peut être rafﬁné.
Three-component regioselective synthesis and antibacterial evaluation of new arene-linked bis(pyrazolo[1,5-a]pyrimidine) hybrids
Creators: name: Sanad, Sherif M. H.
name: Mekky, Ahmed E. M.
Publisher: name: Taylor & Francis
Year: 2023
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Developmental Biology
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: In the current study, a three-component protocol was adopted to efficiently synthesize butane-linked bis(pyrazolo[1,5-a]pyrimidines) 1 attached to arene units in 74–81% yields. The one-pot reaction involved reacting bis(aldehyde) with the respective 1H-pyrazole-3,5-diamines and acetophenones in ethanol at 80 °C in the presence of potassium hydroxide for 6 h. Using a similar protocol, another series of regioisomeric bis(pyrazolo[1,5-a]pyrimidines) 2 was prepared, in 77–87% yields, utilizing the appropriate synthons bis(acetyl) and benzaldehydes. The new products showed a wide spectrum of antibacterial activity against six different ATCC strains. In general, products attached to 3-(4-methoxybenzyl) units exceeded their analogues attached to 3-(4-chlorobenzyl) units in antibacterial activity. Moreover, hybrids which are linked to arene units with para-electron releasing substituents demonstrated improved antibacterial activity. The hybrid 2h, 3-(4-methoxybenzyl) and 7-(4-methoxyphenyl) units, had the best antibacterial activity against all strains tested. It demonstrated more effective activity than ciprofloxacin with MIC/MBC values up to 2.0/4.0 µM.
adaPARL: Adaptive Privacy-Aware Reinforcement Learning for Sequential-Decision Making Human-in-the-Loop Systems
Creators: name: Taherisadr, Mojtaba
name: Stavroulakis, Stelios Andrew
name: Elmalaki, Salma
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Reinforcement learning (RL) presents numerous benefits compared to rule-based approaches in various applications. Privacy concerns have grown with the widespread use of RL trained with privacy-sensitive data in IoT devices, especially for human-in-the-loop systems. On the one hand, RL methods enhance the user experience by trying to adapt to the highly dynamic nature of humans. On the other hand, trained policies can leak the user's private information. Recent attention has been drawn to designing privacy-aware RL algorithms while maintaining an acceptable system utility. A central challenge in designing privacy-aware RL, especially for human-in-the-loop systems, is that humans have intrinsic variability and their preferences and behavior evolve. The effect of one privacy leak mitigation can be different for the same human or across different humans over time. Hence, we can not design one fixed model for privacy-aware RL that fits all. To that end, we propose adaPARL, an adaptive approach for privacy-aware RL, especially for human-in-the-loop IoT systems. adaPARL provides a personalized privacy-utility trade-off depending on human behavior and preference. We validate the proposed adaPARL on two IoT applications, namely (i) Human-in-the-Loop Smart Home and (ii) Human-in-the-Loop Virtual Reality (VR) Smart Classroom. Results obtained on these two applications validate the generality of adaPARL and its ability to provide a personalized privacy-utility trade-off. On average, for the first application, adaPARL improves the utility by $57\%$ over the baseline and by $43\%$ over randomization. adaPARL also reduces the privacy leak by $23\%$ on average. For the second application, adaPARL decreases the privacy leak to $44\%$ before the utility drops by $15\%$.
description: This paper is accepted at CPS-IoT week (IoTDI'23)
Higgs Decay into Two Photons at the Boundary of a Warped Extra Dimension
Creators: name: Hahn, Juliane
name: Hörner, Clara
name: Malm, Raoul
name: Neubert, Matthias
name: Novotny, Kristiane
name: Schmell, Christoph
Publisher: name: arXiv
Year: 2013
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A detailed five-dimensional calculation of the Higgs-boson decay into two photons is performed in both the minimal and the custodially protected Randall-Sundrum (RS) model, where the Standard Model (SM) fields propagate in the bulk and the scalar sector lives on or near the IR brane. It is explicitly shown that the $R_ξ$ gauge invariance of the sum of diagrams involving bosonic fields in the SM also applies to the case of these RS scenarios. An exact expression for the $h\toγγ$ amplitude in terms of the five-dimensional (5D) gauge-boson and fermion propagators is presented, which includes the full dependence on the Higgs-boson mass. Closed expressions for the 5D $W$-boson propagators in the minimal and the custodial RS model are derived, which are valid to all orders in $v^2/M_\textrm{KK}^2$. In contrast to the fermion case, the result for the bosonic contributions to the $h\toγγ$ amplitude is insensitive to the details of the localization of the Higgs profile on or near the IR brane. The various RS predictions for the rate of the $pp\to h\toγγ$ process are compared with the latest LHC data, and exclusion regions for the RS model parameters are derived.
description: 30 pages (plus appendices), 4 figures (V2: several improvements of the discussion, discussion of the lepton sector added, typos corrected, references added)
joint decision feedback equalization embedded phase-locked loop and maximum signal-to-interference ratio combining
Creators: name: Zhou
Publisher: name: figshare
Year: 2023
Subjects: Data communications
Signal processing
Wireless communication systems and technologies (incl. microwave and millimetrewave)

description: We adopt the receiving diversity processing mechanism of joint decision feedback equalization embedded phase-locked loop and maximum signal-to-interference ratio combining. The phase-locked loop module is embedded in each decision feedback equalization branch to eliminate the residual frequency and phase error after Doppler compensation. The combining coefficients adopt the maximum signal-to-interference ratio criterion, which takes the residual inter-symbol interference after equalization into account in addition to additive noise interference. The combined decision output is used to replace a single branch’s decision value to ensure that a more accurate decision value is fed back to the equalizer of each branch.
Additional file 1 of Care across the gender spectrum: A transgender health curriculum in the Obstetrics and Gynecology clerkship
Creators: name: Schmidt, Christina N.
name: Stretten, Monica
name: Bindman, Jay G.
name: Pettigrew, Gaetan
name: Lager, Jeannette
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Supplementary material 1: Appendix A
Dynamical Gate Tunable Supercurrents in Topological Josephson Junctions
Creators: name: Kurter, C.
name: Finck, A. D. K.
name: Ghaemi, P.
name: Hor, Y. S.
name: Van Harlingen, D. J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Josephson junctions made of closely-spaced conventional superconductors on the surface of 3D topological insulators have been proposed to host Andreev bound states (ABSs) which can include Majorana fermions. Here, we present an extensive study of the supercurrent carried by low energy ABSs in Nb/Bi$_2$Se$_3$/Nb Josephson junctions in various SQUIDs as we modulate the carrier density in the Bi$_2$Se$_3$ barriers through electrostatic top gates. As previously reported, we find a precipitous drop in the Josephson current at a critical value of the voltage applied to the top gate. This drop has been attributed to a transition where the topologically trivial 2DEG at the surface is nearly depleted, causing a shift in the spatial location and change in nature of the helical surface states. We present measurements that support this picture by revealing qualitative changes in the temperature and magnetic field dependence of the critical current across this transition. In particular, we observe pronounced fluctuations in the critical current near total depletion of the 2DEG that demonstrate the dynamical nature of the supercurrent transport through topological low energy ABSs.
description: 6 pages, 6 figures
joint decision feedback equalization embedded phase-locked loop and maximum signal-to-interference ratio combining
Creators: name: Zhou
Publisher: name: figshare
Year: 2023
Subjects: Data communications
Signal processing
Wireless communication systems and technologies (incl. microwave and millimetrewave)

description: Due to the frequency selective fading, multipath effect, and significant transmission loss, single-link underwater acoustic communication is extremely unstable in the complex marine environment. This paper constructs a distributed underwater acoustic diversity communication system (DUA-DCS) to overcome the problems. DUA-DCS uses a distributed cross-media buoys network with motorized deployment to form a distributed non-coherent parallel communication link to realize the diversity combining of underwater acoustic signals at the waveform level. The uplink adopts the receiving diversity processing mechanism of joint decision feedback equalization embedded phase-locked loop and maximum signal-to-interference ratio combining (DFE-PLL-MSIRC). The phase-locked loop module is embedded in each decision feedback equalization branch to eliminate the residual frequency and phase error after Doppler compensation. The combining coefficients adopt the maximum signal-to-interference ratio criterion, which takes the residual inter-symbol interference after equalization into account in addition to additive noise interference. The combined decision output is used to replace a single branch’s decision value to ensure that a more accurate decision value is fed back to the equalizer of each branch.
Additional file 2 of Care across the gender spectrum: A transgender health curriculum in the Obstetrics and Gynecology clerkship
Creators: name: Schmidt, Christina N.
name: Stretten, Monica
name: Bindman, Jay G.
name: Pettigrew, Gaetan
name: Lager, Jeannette
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Supplementary material 2: Appendix B
Improvement of magnetic hardness at finite temperatures: ab initio disordered local moment approach for YCo$_5$
Creators: name: Matsumoto, Munehisa
name: Banerjee, Rudra
name: Staunton, Julie B.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Temperature dependence of the magnetocrystalline anisotropy energy and magnetization of the prototypical rare-earth magnet YCo$_5$ is calculated from first principles, utilizing the relativistic disordered local moment approach. We discuss a strategy to enhance the finite-temperature anisotropy field by hole doping, paving the way for an improvement of the coercivity near room temperature or higher.
description: 12 pages, 13 figures, some corrections made and a reference updated
Kondo effect in graphene with Rashba spin-orbit coupling
Creators: name: Mastrogiuseppe, Diego
name: Wong, Arturo
name: Ingersent, Kevin
name: Ulloa, Sergio
name: Sandler, Nancy
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We study the Kondo screening of a magnetic impurity adsorbed in graphene in the presence of Rashba spin-orbit interaction. The system is described by an effective single-channel Anderson impurity model, which we analyze using the numerical renormalization group. The nontrivial energy dependence of the host density of states gives rise to interesting behaviors under variation of the chemical potential or the spin-orbit coupling. Varying the Rashba coupling produces strong changes in the Kondo temperature characterizing the many-body screening of the impurity spin, and at half filling allows approach to a quantum phase transition separating the strong-coupling Kondo phase from a free-moment phase. Tuning the chemical potential close to sharp features of the hybridization function results in striking features in the temperature dependences of thermodynamic quantities and in the frequency dependence of the impurity spectral function.
description: 11 pages, 9 figures. Minor changes. Accepted in PRB
Additional file 3 of Care across the gender spectrum: A transgender health curriculum in the Obstetrics and Gynecology clerkship
Creators: name: Schmidt, Christina N.
name: Stretten, Monica
name: Bindman, Jay G.
name: Pettigrew, Gaetan
name: Lager, Jeannette
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Supplementary material 3: Appendix C
Das vormundschaftliche Gericht. Anmerkungen zur Mauerschützen-Entscheidung des Bundesverfassungsgerichts vom 24. Oktober 1996
Creators: name: Schlink, Bernhard
Publisher: name: Humboldt-Universität zu Berlin
Year: 2021
Subjects: subject: 340 Recht

description: Dieser Beitrag ist mit Zustimmung des Rechteinhabers aufgrund einer (DFG-geförderten) Allianz- bzw. Nationallizenz frei zugänglich.
Tachyonic Anti-M2 Branes
Creators: name: Bena, Iosif
name: Graña, Mariana
name: Kuperstein, Stanislav
name: Massai, Stefano
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the dynamics of anti-M2 branes in a warped Stenzel solution with M2 charges dissolved in fluxes by taking into account their full backreaction on the geometry. The resulting supergravity solution has a singular magnetic four-form flux in the near-brane region. We examine the possible resolution of this singularity via the polarization of anti-M2 branes into M5 branes, and compute the corresponding polarization potential for branes smeared on the finite-size four-sphere at the tip of the Stenzel space. We find that the potential has no minimum. We then use the potential for smeared branes to compute the one corresponding to a stack of localized anti-M2 branes, and use this potential to compute the force between two anti-M2 branes at tip of the Stenzel space. We find that this force, which is zero in the probe approximation, is in fact repulsive. This surprising result points to a tachyonic instability of anti-M2 branes in backgrounds with M2 brane charge dissolved in flux.
description: 36 pages, 4 figures; v2: typos corrected, references added; v3: comments added
Development of a 30 cm-cube Electron-Tracking Compton Camera for the SMILE-II Experiment
Creators: name: Mizumura, Y.
name: Tanimori, T.
name: Kubo, H.
name: Takada, A.
name: Parker, J. D.
name: Mizumoto, T.
name: Sonoda, S.
name: Tomono, D.
name: Sawano, T.
name: Nakamura, K.
name: Matsuoka, Y.
name: Komura, S.
name: Nakamura, S.
name: Oda, M.
name: Miuchi, K.
name: Kabuki, S.
name: Kishimoto, Y.
name: Kurosawa, S.
name: Iwaki, S.
Publisher: name: arXiv
Year: 2013
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: To explore the sub-MeV/MeV gamma-ray window for astronomy, we have developed the Electron-Tracking Compton Camera (ETCC), and carried out the first performance test at room condition using several gamma-ray sources in the sub-MeV energy band. Using a simple track analysis for a quick first test of the performance, the gamma-ray imaging capability was demonstrated by clear images and 5.3 degrees of angular resolution measure (ARM) measured at 662 keV. As the greatest impact of this work, a gamma-ray detection efficiency on the order of $10^{-4}$ was achieved at the sub-MeV gamma-ray band, which is one order of magnitude higher than our previous experiment. This angular resolution and detection efficiency enables us to detect the Crab Nebula at the 5 sigma level with several hours observation at balloon altitude in middle latitude. Furthermore, good consistency of efficiencies between this performance test and simulation including only physical processes has a large importance; it means we achieve nearly 100% detection of Compton recoil electrons. Thus, our estimation of enhancements by upgrades of the detector is more dependable. We are planning to confirm the imaging capability of the ETCC by observation of celestial objects in the SMILE-II (Sub-MeV gamma ray Imaging Loaded-on-balloon Experiment II). The SMILE-II and following SMILE-III project will be an important key of sub-MeV/MeV gamma-ray astronomy.
description: 9 pages, 7 figures, Proceedings of the 15th International Workshop on Radiation Imaging Detectors (iWoRiD 2013)
Unbiased Learning to Rank with Biased Continuous Feedback
Creators: name: Ren, Yi
name: Tang, Hongyan
name: Zhu, Siwen
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: It is a well-known challenge to learn an unbiased ranker with biased feedback. Unbiased learning-to-rank(LTR) algorithms, which are verified to model the relative relevance accurately based on noisy feedback, are appealing candidates and have already been applied in many applications with single categorical labels, such as user click signals. Nevertheless, the existing unbiased LTR methods cannot properly handle continuous feedback, which are essential for many industrial applications, such as content recommender systems. To provide personalized high-quality recommendation results, recommender systems need model both categorical and continuous biased feedback, such as click and dwell time. Accordingly, we design a novel unbiased LTR algorithm to tackle the challenges, which innovatively models position bias in the pairwise fashion and introduces the pairwise trust bias to separate the position bias, trust bias, and user relevance explicitly and can work for both continuous and categorical feedback. Experiment results on public benchmark datasets and internal live traffic of a large-scale recommender system at Tencent News show superior results for continuous labels and also competitive performance for categorical labels of the proposed method.
description: 10 pages. arXiv admin note: substantial text overlap with arXiv:2111.12929
Additional file 1 of Development and validation of a CRISPR interference system for gene regulation in Campylobacter jejuni
Creators: name: Costigan, Ruby
name: Stoakes, Emily
name: Floto, R. Andres
name: Parkhill, Julian
name: Grant, Andrew J.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1.
No-activation theorem for Gaussian nonclassical correlations by Gaussian operations
Creators: name: Mišta, Ladislav
name: McNulty, Daniel
name: Adesso, Gerardo
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study general quantum correlations of continuous variable Gaussian states and their interplay with entanglement. Specifically, we investigate the existence of a quantum protocol activating all nonclassical correlations between the subsystems of an input bipartite continuous variable system, into output entanglement between the system and a set of ancillae. For input Gaussian states, we prove that such an activation protocol cannot be accomplished with Gaussian operations, as the latter are unable to create any output entanglement from an initial separable yet nonclassical state in a worst-case scenario. We then construct a faithful non-Gaussian activation protocol, encompassing infinite-dimensional generalizations of controlled-NOT gates to generate entanglement between system and ancillae, in direct analogy with the finite-dimensional case. We finally calculate the negativity of quantumness, an operational measure of nonclassical correlations defined in terms of the performance of the activation protocol, for relevant classes of two-mode Gaussian states.
description: 10 pages, 2 figures; to appear in PRA
Optimal ANN-SNN Conversion for High-accuracy and Ultra-low-latency Spiking Neural Networks
Creators: name: Bu, Tong
name: Fang, Wei
name: Ding, Jianhao
name: Dai, PengLin
name: Yu, Zhaofei
name: Huang, Tiejun
Publisher: name: arXiv
Year: 2023
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Spiking Neural Networks (SNNs) have gained great attraction due to their distinctive properties of low power consumption and fast inference on neuromorphic hardware. As the most effective method to get deep SNNs, ANN-SNN conversion has achieved comparable performance as ANNs on large-scale datasets. Despite this, it requires long time-steps to match the firing rates of SNNs to the activation of ANNs. As a result, the converted SNN suffers severe performance degradation problems with short time-steps, which hamper the practical application of SNNs. In this paper, we theoretically analyze ANN-SNN conversion error and derive the estimated activation function of SNNs. Then we propose the quantization clip-floor-shift activation function to replace the ReLU activation function in source ANNs, which can better approximate the activation function of SNNs. We prove that the expected conversion error between SNNs and ANNs is zero, enabling us to achieve high-accuracy and ultra-low-latency SNNs. We evaluate our method on CIFAR-10/100 and ImageNet datasets, and show that it outperforms the state-of-the-art ANN-SNN and directly trained SNNs in both accuracy and time-steps. To the best of our knowledge, this is the first time to explore high-performance ANN-SNN conversion with ultra-low latency (4 time-steps). Code is available at https://github.com/putshua/SNN\_conversion\_QCFS
Additional file 2 of Development and validation of a CRISPR interference system for gene regulation in Campylobacter jejuni
Creators: name: Costigan, Ruby
name: Stoakes, Emily
name: Floto, R. Andres
name: Parkhill, Julian
name: Grant, Andrew J.
Publisher: name: figshare
Year: 2022
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2.
Local Proof of Algebraic Characterization of Free Actions
Creators: name: Baum, Paul F.
name: Hajac, Piotr M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Algebraic Topology (math.AT)
subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics

description: Let $G$ be a compact Hausdorff topological group acting on a compact Hausdorff topological space $X$. Within the $C^{*}$-algebra $C(X)$ of all continuous complex-valued functions on $X$, there is the Peter-Weyl algebra $\mathcal{P}_G(X)$ which is the (purely algebraic) direct sum of the isotypical components for the action of $G$ on $C(X)$. We prove that the action of $G$ on $X$ is free if and only if the canonical map $\mathcal{P}_G(X)\otimes_{C(X/G)}\mathcal{P}_G(X)\to \mathcal{P}_G(X)\otimes\mathcal{O}(G)$ is bijective. Here both tensor products are purely algebraic, and $\mathcal{O}(G)$ denotes the Hopf algebra of "polynomial" functions on $G$.
Braneworlds with field derivative coupling to the Einstein tensor
Creators: name: Minamitsuji, Masato
Publisher: name: arXiv
Year: 2013
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper, we investigate the Randall-Sundrum type braneworld models in the scalar-tensor theory with field derivative coupling to the Einstein tensor. We first formulate the generalized junction conditions of the metric and the scalar field on the timelike codimension-one hypersurface (=brane). With the use of these junction conditions, we then derive the Minkowski and de Sitter brane solutions embedded into the $Z_2$-symmetric five-dimensional anti-de Sitter (AdS) bulk spacetime. The configuration of the scalar field depends on the slice of the AdS spacetime. These branes are supported by the tension and not coupled to the scalar field. The Minkowski brane solution can be obtained when the brane tension is tuned to the bulk contributions. Once this tuning relation is broken, the de Sitter brane solutions are obtained. The de Sitter brane solutions have two branches. One has the smooth limit to the case where the scalar field becomes trivial, while the other branch does not. The latter branch has the upper bound on the brane tension, where the expansion rate vanishes. Finally, we investigate the low energy effective gravitational theory realized on the brane, which is given by the four-dimensional Einstein-scalar theory with the corrections from the bulk. In the case that there is no generation of the dark radiation from the bulk scalar field, we recover the the four-dimensional Einstein-scalar theory.
description: 18 pages, 1 figure, comments and references added, the version to appear in Physical Review D
Isospin-invariant Skyrme energy-density-functional approach with axial symmetry
Creators: name: Sheikh, J. A.
name: Hinohara, N.
name: Dobaczewski, J.
name: Nakatsukasa, T.
name: Nazarewicz, W.
name: Sato, K.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We develop the isospin-invariant Skyrme-EDF method by considering local densities in all possible isospin channels and proton-neutron (p-n) mixing terms as mandated by the isospin symmetry. The EDF employed has the most general form that depends quadratically on the isoscalar and isovector densities. We test and benchmark the resulting p-n EDF approach, and study the general properties of the new scheme by means of the cranking in the isospin space. We extend the existing axial DFT solver HFBTHO to the case of isospin-invariant EDF approach with all possible p-n mixing terms. Explicit expressions have been derived for all the densities and potentials that appear in the isospin representation. In practical tests, we consider the Skyrme EDF SkM* and, as a first application, concentrate on Hartree-Fock aspects of the problem, i.e., pairing has been disregarded. Calculations have been performed for the (A=78, T~11), (A=40, T~8), and (A=48, T~4) isobaric analog chains. Isospin structure of self-consistent p-n mixed solutions has been investigated with and without the Coulomb interaction, which is the sole source of isospin symmetry breaking in our approach. The extended axial HFBTHO solver has been benchmarked against the symmetry-unrestricted HFODD code for deformed and spherical states. We developed and tested a general isospin-invariant Skyrme-EDF framework. The new approach permits spin-isospin densities that may give rise to, hitherto, unexplored modes in the excitation spectrum. The new formalism has been tested in the Hartree-Fock limit. A systematic comparison between HFODD and HFBTHO results show a maximum deviation of about 10 keV on the total binding energy for deformed nuclei when the Coulomb term is included. Without this term, the results of both solvers agree down to a ~10 eV level.
description: 13 pages, 10 figures, submitted to Phys. Rev. C
Disturbances in the Doppler frequency shift of ionospheric signal and in telluric current caused by the atmospheric waves from an explosive eruption of Hunga Tonga volcano on January 15, 2022
Creators: name: Salikhov, N.
name: Shepetov, A.
name: Pak, G.
name: Saveliev, V.
name: Nurakynov, S.
name: Ryabov, V.
name: Zhukov, V.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Geophysics (physics.geo-ph)
subject: FOS: Physical sciences

description: After an explosive eruption of the Hunga Tonga volcano on January 15, 2022, disturbances were observed at a distance of about 12000km in Northern Tien Shan among the variations of the atmosphere pressure, of telluric current, and of the Doppler frequency shift of ionospheric signal. At 16:00:55UTC a pulse of atmospheric pressure was detected there with a peak amplitude of 1.3hPa and propagation speed of 0.3056km/s, equal to the velocity of Lamb wave. In the variations of the Doppler frequency shift, the disturbances of two types were registered on the 3212km and 2969km long inclined radio-paths, one of which arose as a response to the passage of a Lamb wave (0.3059km/s) through the reflection point of radio wave, and another as reaction to the acoustic-gravity wave (0.2602km/s). Two successive perturbations were also detected in the records of telluric current at the arrival times of the Lamb and acoustic-gravity waves into the registration point. According to the parameters of the Lamb wave, an energy transfer into the atmosphere at the explosion of the Hunga Tonga volcano was roughly estimated as 2000Mt of TNT equivalent.
Spontaneous loop-spin current with topological characters in the Hubbard model
Creators: name: Goto, Shimpei
name: Masuda, Keisuke
name: Kurihara, Susumu
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We find a state characterized by a spontaneous loop-spin current and a single-particle gap in the Hubbard model within the variational cluster approach. This state exists for arbitrarily small interaction in a half-filled honeycomb lattice. Moreover, from the calculations of the topological invariants for the interacting system, it is shown that this gapped state has nontrivial topological characters; this state is the topological Mott insulating state. This result implies the ubiquity of topological Mott insulating phases.
description: 8 pages, 9 figures
ABC News/Washington Post: October 2020 Pennsylvania Poll
Creators: name: ABC News
name: Washington Post
Publisher: name: Roper Center for Public Opinion Research
Year: 2020

description: Following 2020 presidential election (1); voting in election (3); President Donald Trump vs. Former Vice President Joe Biden vs Jo Jorgensen (3); vote for Gary Peters vs John James for United States Senate (2); enthusiasm about supporting Biden/Trump (2); trust Trump vs. Biden on issues (2); Trump job performance (3); worried about coronavirus (COVID-19) (1); economy (1); support/oppose state rules on masks and restrictions on gatherings (1); Biden/Trump qualities (3); feud between Trump and Governor of Michigan Gretchen Whitmer (1); vote in 2016 presidential election (2); vote in 2018 congressional election (1); political partisanship (2); ideology (3); military service (1).
title: Dating, isotope fingerprinting and metallogenic role of alkali metasomatism in Fe and Mn-rich rocks of the Northern Cape, South Africa
Creators: name: Papadopoulos, Vlassis
Publisher: name: University of Glasgow
Year: 2023

description: The Northern Cape Province of South Africa is host to some of the largest deposits of iron and manganese metal in the world, contained in two separate districts, namely the Kalahari (KMF) and Postmasburg Manganese fields (PMF). The current thesis attempts to shed light on the chronicle of the complex epigenetic history of the two ore fields by focusing on the previously underexamined recurring theme of gangue alkali-rich assemblages, contained in and flanking a series of Fe and Mn orebodies. The principal outcomes of this study not only (a) set constrains on the characteristics, origin, sources, timing and relationship of alkali mineralization between the KMF and PMF, but also (b) challenge current ore genetic models by exploring the role of regional “alkali flooding” as a shared mechanism in the formation or at least hydrothermal upgrade of the deposits, (c) are beneficial for future exploration for new orebodies in the study and other prospective areas and (d) improve our knowledge of fluid circulation in sedimentary basins.