cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Monter une pièce de théâtre en milieu scolaire
title: Contraintes et possibilités : Récit d’une expérience : Mise en scène des Misérables, basée sur le roman de Victor Hugo, dans un établissement primaire / secondaire lausannois (7-11H)
titleType: Subtitle
Creators: name: Balmer, Camille
Publisher: name: Unknown
Year: 0
Subjects: subject: Théâtre
subject: Projet
subject: Expérience
subject: École
subject: Contraintes
subject: Possibilités

description: Ce travail présente une étude des possibilité et contraintes de la pratique théâtrale en milieu scolaire. La recherche a pour objectif d’offrir des pistes de réflexions qui, je l’espère, permettront aux enseignants une appréhension facilitée du théâtre à l’école. Une approche théorique du domaine ainsi que des entretiens menés avec des expert·e·s du milieu théâtral offrent une vision globale de la pratique de cet art à l’école et en dehors. En parallèle, et à l’aide des conseils de ces expert·e·s, j’ai monté une pièce de théâtre basée sur le roman de Victor Hugo, Les Misérables, dans un établissement scolaire lausannois. Un récit de l’expérience pratique permet de transmettre le vécu et l’évolution des participant·e·s au projet, ainsi que d’établir un récapitulatif des étapes de création théâtrale en milieu scolaire. Ce travail, s’étendant sur des mois, m’a permis d’explorer l’entier du processus de création d’une pièce de théâtre, de la rédaction du script jusqu’aux représentations sur scène, en passant par la mise en place de collaborations avec divers interlocuteurs/trices adultes et le travail avec les élèves comédien·ne·s. Le compte-rendu touchant tant aux aspects de mise en scène qu’ à l’organisation générale (planification, fabrication de costumes et décors, éclairage et sonorisation, publicité, etc.) donne la possibilité d’établir une liste des éléments à définir, à prévoir et à réaliser lors d’un projet de création théâtrale en milieu scolaire.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
La situation-problème au service de l’équilibre chimique
Creators: name: Sigstam, Thérèse
name: Wavre, Florence
Publisher: name: Unknown
Year: 0
Subjects: subject: Situation-problème
subject: travaux pratiques
subject: équilibre chimique
subject: apprentissage
subject: actif
subject: collaboration

description: Ce travail de mémoire consiste en l’élaboration d’une situation-problème selon la définition faite par G. De Vecchi, qui permet de mettre au défi l’élève et de le placer au centre de son apprentissage, il devient ainsi actif de son savoir. L’enseignant pose les règles de cette nouvelle technique d’apprentissage et sert de guide. Ce mémoire comprend une description des choix faits pour élaborer une situation-problème propice aidant les élèves à comprendre un concept chimique. Il s’agit d’un travail pratique (TP) destiné aux élèves en 2ème année avec option spécifique biologie-chimie sur la notion de l’équilibre chimique. A l’aide de réactions de dissociation, nous permettons aux élèves de mettre en évidence le fait que toutes les réactions chimiques ne sont pas complètes. Durant ce TP les élèves sont confrontés à un obstacle remettant en cause un savoir acquis (les modèles d’introduction à la chimie omettent souvent la réaction inverse). Ils doivent ensuite proposer des hypothèses pour expliquer le phénomène observé et les tester expérimentalement. Les élèves collaboreront par deux et plusieurs moments de mise en commun entre binômes leur permettront d’échanger leurs découvertes. Cette approche du concept de l’équilibre chimique devrait permettre aux élèves de mieux le comprendre, mieux le retenir et mieux pouvoir y faire référence par la suite. Le protocole du TP est décrit dans ce mémoire. Puis des pistes de discussions post-expérimentales sont proposées afin de garantir une compréhension totale du concept grâce à la pratique puis à la théorie faite en classe. Ce travail de mémoire traite aussi des avantages et des inconvénients, pour les élèves et les enseignants, qui peuvent être rencontrés avec cette méthode de travail.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
title: Kundenakzeptanz von Bluetooth-Beacons im Lebensmittelhandel
Creators: name: Leopold, Inken
name: Reuter, Christian
Publisher: name: Gesellschaft für Informatik e.V.
Year: 2023

description: Die Nutzung des Internets hat zu einem veränderten Kaufverhalten der Gesellschaft geführt, was wiederum Auswirkungen auf den stationären Einzelhandel hat. Da die Anzahl an Smartphone-Nutzern ebenfalls kontinuierlich steigt, werden mobile Anwendungen immer wichtiger. Durch den Einsatz von Bluetooth-Beacons – kleinen, beliebig platzierbaren Funksendern, dessen Signale von einer entsprechenden App verarbeitet werden können – kann der Einkauf sowohl erleichtert als auch erlebnisreicher gestaltet werden. Der Gebrauch von Beacons in Deutschland ist weniger verbreitet und erforscht. Pilotprojekte stützen sich lediglich auf Nutzungsdaten und Reaktionszeiten, jedoch nicht auf Kundenmeinungen. Diese Arbeit untersucht Nutzungsmöglichkeiten und Kundenakzeptanz von auf Beacons basierenden Konzepten im Einzelhandel mittels einer Online-Kundenumfrage.
A necklace of dense cores in the high-mass star forming region G35.20-0.74N: ALMA observations
Creators: name: Sánchez-Monge, Á.
name: Beltrán, M. T.
name: Cesaroni, R.
name: Etoka, S.
name: Galli, D.
name: Kumar, M. S. N.
name: Moscadelli, L.
name: Stanke, T.
name: van der Tak, F. F. S.
name: Vig, S.
name: Walmsley, C. M.
name: Wang, K. -S.
name: Zinnecker, H.
name: Elia, D.
name: Molinari, S.
name: Schisano, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: The present study aims at characterizing the massive star forming region G35.20N, which is found associated with at least one massive outflow and contains multiple dense cores, one of them recently found associated with a Keplerian rotating disk. We used ALMA to observe the G35.20N region in the continuum and line emission at 350 GHz. The observed frequency range covers tracers of dense gas (e.g. H13CO+, C17O), molecular outflows (e.g. SiO), and hot cores (e.g. CH3CN, CH3OH). The ALMA 870 um continuum emission map reveals an elongated dust structure (0.15 pc long and 0.013 pc wide) perpendicular to the large-scale molecular outflow detected in the region, and fragmented into a number of cores with masses 1-10 Msun and sizes 1600 AU. The cores appear regularly spaced with a separation of 0.023 pc. The emission of dense gas tracers such as H13CO+ or C17O is extended and coincident with the dust elongated structure. The three strongest dust cores show emission of complex organic molecules characteristic of hot cores, with temperatures around 200 K, and relative abundances 0.2-2x10^(-8) for CH3CN and 0.6-5x10^(-6) for CH3OH. The two cores with highest mass (cores A and B) show coherent velocity fields, with gradients almost aligned with the dust elongated structure. Those velocity gradients are consistent with Keplerian disks rotating about central masses of 4-18 Msun. Perpendicular to the velocity gradients we have identified a large-scale precessing jet/outflow associated with core B, and hints of an east-west jet/outflow associated with core A. The elongated dust structure in G35.20N is fragmented into a number of dense cores that may form massive stars. Based on the velocity field of the dense gas, the orientation of the magnetic field, and the regularly spaced fragmentation, we interpret this elongated structure as the densest part of a 1D filament fragmenting and forming massive stars.
description: 24 pages, 26 figures, accepted for publication in Astronomy and Astrophysics (abstract modified to fit arXiv restrictions)
title: Le droit à l’image sur Internet:
title: quelles activités de prévention pour les élèves du primaire?
titleType: Subtitle
Creators: name: Basset, Emile
Publisher: name: Unknown
Year: 0
Subjects: subject: Éducation aux médias
subject: Droit de la personnalité
subject: MITIC
subject: Protection des données
subject: Compétences médiatiques
subject: Réseaux sociaux

description: Aujourd’hui, l’image est un élément central dans le développement de l’enfant et de l’adolescent. Les enfants ont, de plus en plus tôt, accès à une grande quantité d’images. Dans la vie quotidienne, ils utilisent de façon régulière des photos et des vidéos (prise de vue, diffusion, réutilisation) au moyen des TIC (WhatsApp, Snapchat, Youtube, Facebook, etc.). Sans éducation aux médias, ils peuvent être vulnérables à certaines menaces et mésusages qui peuvent avoir de lourdes conséquences comme le (cyber)-harcèlement. Ainsi, il est important de connaître les droit et devoirs qui accompagnent l’utilisation de toutes formes d’images, de photos et de vidéos (droit à l’image). La prévention et l’éducation aux médias, en lien avec le droit à l’image, semblent alors nécessaires et indispensables. L’école est un lieu dans lequel la prévention est essentielle. L’éducation aux médias fait partie intégrante des compétences transversales du plan d’études romand (PER). Ce travail d’éducation et de prévention doit être effectué au primaire déjà. Cependant, peu d’activités existent pour les élèves du primaire. Il est donc utile de répertorier les quelques activités de prévention sur le droit à l’image. Nous avons testé l’efficacité de trois activités qui visent à transmettre des connaissances et à modifier les comportements des élèves. Elles sont tirées du programme français de prévention en ligne Vins et Lou sur Internet. Cette recherche s’est déroulée dans le cadre d’un stage dans une classe de 5ème HarmoS. Les résultats de notre recherche ont démontré que les activités ont eu un effet bénéfique sur les connaissances et les comportements des élèves. Cependant, ce changement n’a été constaté que lors de situations explicites, lorsque des consignes précises ont été données aux élèves. Ces résultats plaident également pour une éducation aux compétences empathiques qui aideraient les élèves à mieux se mettre à la place de l’autre et éviter ainsi un usage abusif ou détourné de l’image d’autrui.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
On the pollution of white dwarfs by exo-Oort cloud comets
Creators: name: O'Connor, Christopher E.
name: Lai, Dong
name: Seligman, Darryl Z.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: A large fraction of white dwarfs (WDs) have metal-polluted atmospheres, which are produced by accreting material from remnant planetary systems. The composition of the accreted debris broadly resembles that of rocky Solar System objects. Volatile-enriched debris with compositions similar to long-period comets (LPCs) is rarely observed. We attempt to reconcile this dearth of volatiles with the premise that exo-Oort clouds (XOCs) occur around a large fraction of planet-hosting stars. We estimate the comet accretion rate from an XOC analytically, adapting the 'loss cone' theory of LPC delivery in the Solar System. We investigate the dynamical evolution of an XOC during late stellar evolution. Using numerical simulations, we show that 1 to 30 per cent of XOC objects remain bound after anisotropic stellar mass loss imparting a WD natal kick of $\sim$1 km/s. We also characterize the surviving comets' distribution function. Surviving planets orbiting a WD can prevent the accretion of XOC comets by the star. A planet's 'dynamical barrier' is effective at preventing comet accretion if the energy kick imparted by the planet exceeds the comet's orbital binding energy. By modifying the loss cone theory, we calculate the amount by which a planet reduces the WD's accretion rate. We suggest that the scarcity of volatile-enriched debris in polluted WDs is caused by an unseen population of 10-100 AU scale giant planets acting as barriers to incoming LPCs. Finally, we constrain the amount of volatiles delivered to a planet in the habitable zone of an old, cool WD.
description: 18 pages, 12 figures; submitted to MNRAS. Comments welcome!
Le mind-map, un outil au service des apprentissages à l’école primaire
Creators: name: Ris, Muriel
name: Savoy, Camille
Publisher: name: Unknown
Year: 0
Subjects: subject: Mind-map
subject: outil médiateur
subject: compréhension
subject: institutionnalisation
subject: genre textuel
subject: conte merveilleux

description: Notre recherche propose de tester un outil médiateur en classe pour l’organisation et la stabilisation des savoirs lors de la phase d’institutionnalisation : le mind-map. C’est une pratique déjà établie mais peu voire pas utilisée dans l’enseignement primaire. Pourtant, les travaux de Régnard (2011) montrent que la création avec et par les élèves de ce type de carte permet à la fois à ceux-ci d’organiser les concepts d’un objet d’apprentissage et à l’enseignant de vérifier leur compréhension. Dans notre étude, nous évaluons l’acquisition de l’objet d’apprentissage le conte merveilleux dans une classe de sixième Harmos. L’outil est utilisé tout au long de la séquence. L’effet de l’outil est mesuré à l’aide d’un prétest et d’un post-test qui clôture la séquence d’enseignement, ainsi qu’à l’aide d’entretiens menés avec six élèves de différents niveaux avant et après la séquence. De plus, tous les élèves de la classe répondront à un questionnaire, afin de mesurer la fréquence d’utilisation du mind-map lors du post-test. Nous posons l’hypothèse que l’outil permet une meilleure compréhension de l’objet d’apprentissage.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
The First GECAM Observation Results on Terrestrial Gamma-ray Flashes and Terrestrial Electron Beams
Creators: name: Zhao, Y.
name: Liu, J. C.
name: Xiong, S. L.
name: Xue, W. C.
name: Yi, Q. B.
name: Lu, G. P.
name: Xu, W.
name: Lyu, F. C.
name: Sun, J. C.
name: Peng, W. X.
name: Zheng, C.
name: Zhang, Y. Q.
name: Cai, C.
name: Xiao, S.
name: Xie, S. L.
name: Wang, C. W.
name: Tan, W. J.
name: An, Z. H.
name: Chen, G.
name: Du, Y. Q.
name: Huang, Y.
name: Gao, M.
name: Gong, K.
name: Guo, D. Y.
name: He, J. J.
name: Li, B.
name: Li, G.
name: Li, X. Q.
name: Li, X. B.
name: Liao, J. Y.
name: Liang, J.
name: Liang, X. H.
name: Liu, Y. Q.
name: Ma, X.
name: Qiao, R.
name: Song, L. M.
name: Song, X. Y.
name: Sun, X. L.
name: Wang, J.
name: Wang, J. Z.
name: Wang, P.
name: Wen, X. Y.
name: Wu, H.
name: Xu, Y. B.
name: Yang, S.
name: Zhang, B. X.
name: Zhang, D. L.
name: Zhang, F.
name: Zhang, P.
name: Zhang, H. M.
name: Zhang, Z.
name: Zhao, X. Y.
name: Zheng, S. J.
name: Zhang, K. K.
name: Han, X. B.
name: Wu, H. Y.
name: Hu, T.
name: Geng, H.
name: Zhang, H. B.
name: Lu, F. J.
name: Zhang, S. N.
name: Yu, H.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Gravitational-wave high-energy Electromagnetic Counterpart All-sky Monitor (GECAM) is a space-borne instrument dedicated to monitoring high-energy transients, including Terrestrial Gamma-ray Flashes (TGFs) and Terrestrial Electron Beams (TEBs). We implemented a TGF/TEB search algorithm for GECAM, with which 147 bright TGFs, 2 typical TEBs and 2 special TEB-like events are identified during an effective observation time of $\sim$9 months. We show that, with gamma-ray and charged particle detectors, GECAM can effectively identify and distinguish TGFs and TEBs, and measure their temporal and spectral properties in detail. A very high TGF-lightning association rate of $\sim$80\% is obtained between GECAM and GLD360 in east Asia region.
description: The paper was accepted by Geophysical Research Letters on June 16th, 2023
L’intérêt en situation dans le projet Muuvit
Creators: name: Nicole, Pauline
name: Olivier, Mélina
Publisher: name: Unknown
Year: 0
Subjects: subject: Activité physique
subject: Motivation
subject: Intérêt en situation
subject: Projets santé
subject: Muuvit

description: A l’école nous nous rendons compte que les élèves bougent de moins en moins. Cette inactivité physique a attiré notre attention c’est pourquoi nous avons choisi de mettre un projet santé en place dans le but de sensibiliser les enfants. Nous avons décidé de proposer à notre classe le programme Muuvit qui incite les jeunes à apprendre et à bouger. Celui-ci permet une activité physique quotidienne, un renforcement du travail d’équipe et une découverte du monde. La motivation, un facteur important dans la vie, émane naturellementde Muuvit. Dans ce travail, nous cherchons à comprendre l’influence que le projet Muuvit a sur la motivation des élèves. Pour cela nous nous sommes basées sur le concept de l’intérêt en situation. Nous avons donc cherché les différentes situations présentes dans ce programme afin de les analyser en fonction de la théorie. Ceci dans le but de comprendre ce qui stimule les élèves à bouger dans un projet comme celui-ci et de pouvoir le réinvestir dans notre enseignement quotidien.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
V445 Puppis -- Dustier than a Thousand Novae
Creators: name: Banerjee, D. P. K.
name: Evans, A.
name: Woodward, C. E.
name: Starrfield, S.
name: Su, K. Y. L.
name: Ashok, N. M.
name: Wagner, R. M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: V445 Puppis, the only known Galactic helium nova, is a unique test-bed to verify supernova (SN) theories in the single degenerate channel that involve a white dwarf (WD) accreting matter from a helium-rich donor. An estimate of the mass of the helium shell on the WD is crucial to deciding whether or not it will undergo a SN detonation. In this context, this study estimates the dust and ejecta masses in the 2000 November eruption of V445 Pup. Subsequent to its outburst, the star became cocooned in a dust envelope. An analysis of the spectral energy distribution (SED) of the dust using infrared data shows that V445 Pup produced at least $10^{-3}$ solar masses of dust which is unprecedented for a classical or recurrent nova. The SED can be explained by a combination of a cold dust component at 105 +/- 10 K, mass (1.9 +/- 0.8) $\times 10^{-3}$ solar masses, and a warm dust component at 255 +/- 10 K, mass (2.2 +/- 1.2) $\times 10^{-5}$ solar masses. For a conservative choice of the gas-to-dust mass ratio in the range 10--100, the mass of the ejecta is 0.01--0.1 solar masses. Such a high mass range raises the question: why did V445 Pup not detonate as a Type 1a SN as is predicted in certain double-detonation sub-Chandrasekhar supernovae formalisms? We re-examine the nature of V445 Pup and discuss its role as a potential SN progenitor.
description: 8 page, 3 figures, 1 table, Accepted to ApJ Letters
Parsimony, exhaustivity and balanced detection in neocortex
Creators: name: Romagnoni, Alberto
name: Ribot, Jérôme
name: Bennequin, Daniel
name: Touboul, Jonathan D.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: One fascinating aspect of the brain is its ability to process information in a fast and reliable manner. The functional architecture is thought to play a central role in this task, by encoding efficiently complex stimuli and facilitating higher level processing. In the early visual cortex of higher mammals, information is processed within functional maps whose layout is thought to underlie visual perception. The possible principles underlying the topology of the different maps, as well as the role of a specific functional architecture on information processing, is however poorly understood. We demonstrate mathematically here that two natural principles, local exhaustivity of representation and parsimony, would constrain the orientation and spatial frequency maps to display co-located singularities around which the orientation is organized as a pinwheel and spatial frequency as a dipole. This observation is perfectly in line with new optical imaging data on the cat visual cortex we analyze in a companion paper. Here we further focus on the theoretical implications of this structure. Using a computational model, we show that this architecture allows a trade-off in the local perception of orientation and spatial frequency, but this would occur for sharper selectivity than the tuning width reported in the literature. We therefore re-examined physiological data and show that indeed the spatial frequency selectivity substantially sharpens near maps singularities, bringing to the prediction that the system tends to optimize balanced detection between different attributes. These results shed new light on the principles at play in the emergence of functional architecture of cortical maps, as well as their potential role in processing information.
Hybrid Graphene-Plasmon Gratings
Creators: name: Guo, Tianjing
name: Argyropoulos, Christos
Publisher: name: arXiv
Year: 2023
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Graphene can support surface plasmons with higher confinement, lower propagation loss, and substantially more tunable response compared to usual metal-based plasmonic structures. Interestingly, plasmons in graphene can strongly couple with nanostructures and gratings placed in its vicinity to form new hybrid systems that can provide a platform to investigate more complicated plasmonic phenomena. In this Perspective, an analysis on the excitation of highly confined graphene plasmons and their strong coupling with metallic or dielectric gratings is performed. We emphasize the flexibility in the efficient control of light-matter interaction by these new hybrid systems, benefiting from the interplay between graphene plasmons and other external resonant modes. The hybrid graphene-plasmon grating systems offer unique tunable plasmonic resonances with enhanced field distributions. They exhibit a novel route to realize practical emerging applications, including nonreciprocal devices, plasmonic switches, perfect absorbers, nonlinear structures, photodetectors, and optical sensors.
Bulge-disc decomposition of KiDS and VIKING data in the nearby Universe
Creators: name: Casura, Sarah
Publisher: name: Zenodo
Year: 2023

description: Talk recording: https://www.youtube.com/watch?v=8X26tiproTY
Abstract: I will present our recently completed catalogue of robust structural parameters for the components of ~13,000 galaxies with z<0.08 from the Galaxy And Mass Assembly (GAMA) survey. We treat each of the 9 bands provided by the KiDS and VIKING survey (ugriZYJHKs) independently, fitting three models to each galaxy in each band with a fully automated Markov-chain Monte Carlo analysis using ProFit. In analysing the VIKING data, we make use of ProFit's multi-frame fitting functionality for the first time (working at the pawprint level, fitting all exposures of the same galaxy in the same band simultaneously), thus avoiding point spread function uncertainties due to stacking. Such advancements in methods are vital to fully exploit the high-quality data of current and upcoming large imaging surveys. To this end, we also employ extensive post-processing, including model selection, the flagging of bad fits (mainly irregular galaxies), and a detailed characterisation of systematic uncertainties by comparing independent fits of galaxies in the overlap regions between KiDS tiles, as well as bespoke simulations. We find that our fit results are robust across various galaxy types and image qualities with minimal biases and realistic uncertainties (once corrected for systematics). The resulting catalogue allows us to study a variety of properties of galaxies and their components (bulges and disks) including, e.g., colours, luminosity functions, mass-size relations and dust attenuation.
The correlations of stellar tidal disruption rates with properties of massive black holes and their host galaxies
Creators: name: Chen, Yunfeng
name: Yu, Qingjuan
name: Lu, Youjun
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Stars can be either disrupted as tidal disruption events (TDEs) or swallowed as a whole by massive black holes (MBHs) at galactic centers when they approach sufficiently close to these MBHs. In this work, we investigate the correlations of such stellar consumption rates with both the MBH mass $M_{\rm bh}$ and the inner slope of the host galaxy mass density distribution $α$. We introduce a simplified analytical power-law model with a power-law stellar mass density distribution surrounding MBHs and separate the contributions of two-body relaxation and stellar orbital precession for the stellar orbital angular momentum evolution in nonspherical galaxy potentials. The stellar consumption rates derived from this simplified model can be well consistent with the numerical results obtained with a more realistic treatment of stellar distributions and dynamics around MBHs, providing an efficient way to estimate TDE rates. The origin of the correlations of stellar consumption rates with $M_{\rm bh}$ and $α$ are explained by the dependence of this analytical model on those MBH/host galaxy properties and by the separation of the stellar angular momentum evolution mechanisms. We propose that the strong positive correlation between the rates of stellar consumption due to two-body relaxation and $α$ provides one interpretation for the overrepresentation of TDEs found in some rare E+A/poststarburst galaxies. We find high TDE rates for giant stars, up to those for solar-type stars. The understanding of the origin of the correlations of the stellar consumption rates will be necessary for obtaining the demographics of MBHs and their host galaxies via TDEs.
description: 17 pages, 6 figures, ApJ in press
Cloud Base Signature in Transmission Spectra of Exoplanet Atmospheres
Creators: name: Vahidinia, Sanaz
name: Cuzzi, Jeffrey N.
name: Marley, Mark
name: Fortney, Jonathan
Publisher: name: arXiv
Year: 2014
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present an analytical model for the transmission spectrum of a transiting exoplanet, showing that a cloud base can produce an observable inflection point in the spectrum. The wavelength and magnitude of the inflection can be used to break the degeneracy between the atmospheric pressure and the abundance of the main cloud material, however, the abundance still depends on cloud particle size. An observed inflection also provides a specific point on the atmospheric P-T profile, giving us a "thermometer" to directly validate or rule out postulated cloud species. We apply the model to the transit spectrum of HD 189733b.
Intrinsic Nonlinear Hall Detection of the Néel Vector for Two-Dimensional Antiferromagnetic Spintronics
Creators: name: Wang, Jizhang
name: Zeng, Hui
name: Duan, Wenhui
name: Huang, Huaqing
Publisher: name: arXiv
Year: 2023
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The respective unique merit of antiferromagnets and two-dimensional (2D) materials in spintronic applications inspire us to exploit 2D antiferromagnetic spintronics. However, the detection of the Néel vector in 2D antiferromagnets remains a great challenge because the measured signals usually decrease significantly in the 2D limit. Here we propose that the Néel vector of 2D antiferromagnets can be efficiently detected by the intrinsic nonlinear Hall (INH) effect which exhibits unexpected significant signals. As a specific example, we show that the INH conductivity of the monolayer manganese chalcogenides Mn$X$ ($X$=S, Se, Te) can reach the order of nm$\cdot$mA/V$^2$, which is orders of magnitude larger than experimental values of paradigmatic antiferromagnetic spintronic materials. The INH effect can be accurately controlled by shifting the chemical potential around the band edge, which is experimentally feasible via electric gating or charge doping. Moreover, we explicitly demonstrate its $2π$-periodic dependence on the Néel vector orientation based on an effective $k.p$ model. Our findings enable flexible design schemes and promising material platforms for spintronic memory device applications based on 2D antiferromagnets.
The magnetic fields around the cometary globules, L328, L323 and L331
Creators: name: Kumar, Siddharth
name: Soam, Archana
name: Roy, Nirupam
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: This work presents the magnetic field geometry in a complex of three cometary (with head-tail morphology) globules, namely LDN 323, LDN 328, and LDN 331, using R-band polarization measurements of background stars. These observations were combined with a Planck sky survey to study the large-scale morphology of the magnetic fields in the region. The distances of the target stars were adopted from the Gaia catalog. The variation of degree of polarization and polarization position angle with distances of stars is analyzed. The field geometry is mostly found to follow the cometary shape of the cloud, with some randomness at certain locations. For studying the correlation between cloud morphology and magnetic field orientations, a modified version of the Histogram of Relative Orientation analysis was employed.
A Unique Low-Mass Ratio Contact Eclipsing Binary System under the Period Cut-Off
Creators: name: Papageorgiou, A.
name: Christopoulou, P. -E.
name: Lalounta, E.
name: Lopes, C. E. Ferreira
name: Catelan, M.
name: Drake, A. J.
name: Xantzios, P.
name: Alikakos, I.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We present a multi-band photometric analysis of CRTS J163819.6+03485, the first low mass ratio (LMR) contact binary system with a period under the contact binary (CB) period limit. The unprecedented combination of mass ratio and period makes this system unique for eclipsing binary (EB) research. Using new multi-band photometric observations, we explored the parameter space of this unique total EB system through a detailed scan in the mass ratio - inclination plane and using the PIKAIA genetic algorithm optimizer. The best set of relative physical parameters and corresponding uncertainties was adopted through Markov Chain Monte Carlo sampling of the parameter space. The resulting mass ratio of the system is $q = 0.16 \pm 0.01$. The absolute parameters were derived by adopting an empirical mass-luminosity relation. Period changes are also investigated by using new observations and archival photometric light curves from massive astronomical surveys, which revealed in a preliminary solution the presence of a possible low-mass tertiary companion. The origin and evolutionary status of the system are investigated through the detached-binary formation scenario.
Mechanical behavior of web-flange junctions of thin-walled pultruded fiber-reinforced polymer profiles: an experimental and numerical evaluation
Creators: name: Penna, Rosa
Publisher: name: Universita degli studi di Salerno
Year: 2018
Subjects: subject: ICAR/08 SCIENZA DELLE COSTRUZIONI
subject: Polymer Matrix Composite (PMC)
subject: Mechanical testing
subject: Strength

description: 2012 - 2013
description: Fibre-reinforced polymer (FRP) composites represent a class of advanced materials whose use has spread from the aeronautical, mechanical and naval industry to civil infrastructure, which has generated a new set of challenges. Composites have unique features, such as high corrosion resistance, electromagnetic transparency, low maintenance costs and high strength-to-weight ratio. During the past few decades, pultruded fibre-reinforced polymer (PFRP) composites have been used in several successful applications related to corrosive environments such as cooling towers, mining and petrochemical facilities, water and wastewater treatment plants, as well as, off-shore structures. By mid-1990s, major applications of these materials were initiated in the field of seismic and corrosion repair and strengthening of existing reinforced concrete bridges and buildings. Historically, off-the-shelf PFRP composites were developed and designed by the pultrusion industry and were intended for low-stress applications. Recently, composites have been introduced as primary structural members to replace or complement other conventional materials, such as steel, concrete and wood, in critical applications such as bridge decks, pedestrian bridges, and recently in highway bridges and other infrastructural systems. ... [edited by Author]
Magnetic activity evolution of solar-like stars: I. S_ph-Age relation derived from Kepler observations
Creators: name: Mathur, Savita
name: Claytor, Zachary R.
name: Santos, Angela R. G.
name: García, Rafael A.
name: Amard, Louis
name: Bugnet, Lisa
name: Corsaro, Enrico
name: Bonanno, Alfio
name: Breton, Sylvain N.
name: Godoy-Rivera, Diego
name: Pinsonneault, Marc H.
name: van Saders, Jennifer
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The ages of solar-like stars have been at the center of many studies such as exoplanet characterization or Galactic-archaeology. While ages are usually computed from stellar evolution models, relations linking ages to other stellar properties, such as rotation and magnetic activity, have been investigated. With the large catalog of 55,232 rotation periods, $P_{\rm rot}$, and photometric magnetic activity index, $S_{\rm ph}$ from Kepler data, we have the opportunity to look for such magneto-gyro-chronology relations. Stellar ages are obtained with two stellar evolution codes that include treatment of angular momentum evolution, hence using $P_{\rm rot}$ as input in addition to classical atmospheric parameters. We explore two different ways of predicting stellar ages on three subsamples with spectroscopic observations: solar analogs, late-F and G dwarfs, and K dwarfs. We first perform a Bayesian analysis to derive relations between $S_{\rm ph}$ and ages between 1 and 5 Gyr, and other stellar properties. For late-F and G dwarfs, and K dwarfs, the multivariate regression favors the model with $P_{\rm rot}$ and $S_{\rm ph}$ with median differences of 0.1%.and 0.2% respectively. We also apply Machine Learning techniques with a Random Forest algorithm to predict ages up to 14 Gyr with the same set of input parameters. For late-F, G and K dwarfs together, predicted ages are on average within 5.3% of the model ages and improve to 3.1% when including $P_{\rm rot}$. These are very promising results for a quick age estimation for solar-like stars with photometric observations, especially with current and future space missions.
description: 29 pages, 13 figures, including 8 pages of Appendix. Accepted for publication in ApJ
Management of oil and gas industry in Uzbekistan
Creators: name: Ismoilov Sunnatulla  Isokovich
Publisher: name: Zenodo
Year: 2024

description: Abstract: The main goal of development of the oil and gas industry in uzbekistan – fuel resources and increasing the effectiveness of the use of these resources by all sectors of the economy radically sustainable focuses on the population. The development of the oil and gas industry, above all, were put on the right path in the field of governance is directly associated with. In this thesis, covering management issues in the oil and gas industry in uzbekistan.

Keywords: "Fuel direktoriyasi", "Turktop", "Uzmeliomashlizing" trust, "the Sredazneft", "Fergananeft", "Andijonneft", "Jarqo'rg'onneft".
Exploring celebrity influence on public attitude towards the COVID-19 pandemic: social media shared sentiment analysis
Creators: name: White, Brianna M
name: Melton, Chad A
name: Zareie, Parya
name: Davis, Robert L
name: Bednarczyk, Robert A
name: Shaban-Nejad, Arash
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences
subject: I.2.7

description: The COVID-19 pandemic has introduced new opportunities for health communication, including an increase in the public use of online outlets for health-related emotions. People have turned to social media networks to share sentiments related to the impacts of the COVID-19 pandemic. In this paper we examine the role of social messaging shared by Persons in the Public Eye (i.e. athletes, politicians, news personnel) in determining overall public discourse direction. We harvested approximately 13 million tweets ranging from 1 January 2020 to 1 March 2022. The sentiment was calculated for each tweet using a fine-tuned DistilRoBERTa model, which was used to compare COVID-19 vaccine-related Twitter posts (tweets) that co-occurred with mentions of People in the Public Eye. Our findings suggest the presence of consistent patterns of emotional content co-occurring with messaging shared by Persons in the Public Eye for the first two years of the COVID-19 pandemic influenced public opinion and largely stimulated online public discourse. We demonstrate that as the pandemic progressed, public sentiment shared on social networks was shaped by risk perceptions, political ideologies and health-protective behaviours shared by Persons in the Public Eye, often in a negative light.
description: 7 Pages, 4 Figures
Left-Right Symmetry at FCC-hh
Creators: name: Nemevšek, Miha
name: Nesti, Fabrizio
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We study the production of right-handed $W_R$ bosons and heavy neutrinos $N$ at a future 100 TeV high energy hadron collider in the context of Left-Right symmetry, including the effects of $W_L-W_R$ gauge-boson mixing. We estimate the collider reach for up to 3/ab integrated luminosity using a multi-binned sensitivity measure. In the Keung-Senjanović and missing energy channels, the 3$σ$ sensitivity extends up to $M_{W_R}=35$ and 37 TeV, respectively. We further clarify the interplay between the missing energy channel and the (expected) limits from neutrinoless double beta decay searches, Big Bang nucleosynthesis and dark matter.
description: 19 pages, version to appear in PRD
Modulated electromagnetic fields in inhomogeneous media, hyperbolic pseudoanalytic functions and transmutations
Creators: name: Khmelnytskaya, Kira V.
name: Kravchenko, Vladislav V.
name: Torba, Sergii M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Classical Analysis and ODEs (math.CA)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34L40, 35C15, 35L45, 35Q61, 65L05, 65M80, 65Z05, 78M25

description: The time-dependent Maxwell system describing electromagnetic wave propagation in inhomogeneous isotropic media in the one-dimensional case reduces to a Vekua-type equation for bicomplex-valued functions of a hyperbolic variable (see arXiv:1001.0552). Using this relation we solve the problem of the transmission through an inhomogeneous layer of a normally incident electromagnetic time-dependent plane wave. The solution is written in terms of a pair of Darboux-associated transmutation operators (see arXiv:1111.4449), and combined with the recent results on their construction (see arXiv:1208.6166, arXiv:1306.2914) can be used for efficient computation of the transmitted modulated signals. We develop the corresponding numerical method and illustrate its performance with examples.
description: 12 pages, 3 figures
أثر الهيكل التمويلي في تحسين الأداء المالي في المصارف العراقية
Creators: name: Hasan  Ali Alahmady
Publisher: name: Zenodo
Year: 2023

description: Abstract: The current study aimed to identify the impact of the financing structure in improving financial performance in Iraqi banks. To achieve the goal of the study, the researcher used the descriptive analytical method by applying the study tool, the questionnaire, to a sample consisting of (130) employees working in Iraqi banks. The results of the study concluded that there was an impact The financing structure improves financial performance in Iraqi commercial banks.
Keywords: financing structure, financial performance, Iraqi banks.
 
أثر الهيكل التمويلي في تحسين الأداء المالي في المصارف العراقية
ملخص الدراسة:هدفت الدراسة الحالية الي التعرف على أثر الهيكل التمويلي في تحسين الأداء المالي في المصارف العراقية ولتحقيق هدف الدراسة استخدم الباحث المنهج الوصفي التحليلي من خلال تطبيق أداة الدراسة الاستبانة على عينة تكونت من (130) موظف يعملون في المصارف العراقية وتوصلت نتائج الدراسة لوجود أثر للهيكل التمويلي في تحسين الأداء المالي في المصارف التجارية العراقية.
الكلمات المفتاحية: الهيكل التمويلي، الأداء المالي، المصارف العراقية.
title: Le mouvement dans les classes du canton de Vaud au secondaire I
title: quelles résistances du corps enseignant et des directeurs?
titleType: Subtitle
Creators: name: Chenaux, Audrey
name: Tissot, Chloé
Publisher: name: Unknown
Year: 0
Subjects: subject: Mouvement
subject: enseignants
subject: directeur
subject: résistances
subject: établissements
subject: prescrit.

description: Notre étude s'est dirigée sur la question du mouvement dans les classes du secondaire I du canton de Vaud. Nous avons axé notre recherche dans le but d'observer l'éducation au mouvement dans les classes, et d'y relever de possibles résistances quant à la mise en pratique de ce concept. Afin de constater les différents types de résistances chez nos sujets, nous avons décidé d’interviewer des enseignants ainsi que des directeurs d’établissement car ils nous semblent être les acteurs principaux concernant notre thématique. Nous avons porté notre étude sur deux établissements socio-culturels différents, puis nous avons comparé des enseignants d'éducation physique enseignant également une deuxième branche (en classe) et des enseignants qui n’enseignent pas l’éducation physique. En codant les réponses de nos sujets, nous avons pu constater que très peu de mouvement était pratiqué dans les classes du secondaire I. Concernant les enseignants d'éducation physique, les résistances principales étaient l’ignorance du concept, le temps et la routine. Quant aux enseignants d'autres matières, on retrouvait des résistances liées à l'ignorance, au rôle ainsi qu'au temps. Nous avons aussi souligné que la situation des établissements (ville/campagne) jouait un rôle dans les résistances du corps enseignant et que, selon la situation socio-culturelle, les résistances n'étaient pas les mêmes. L’établissement considéré comme plus “difficile” avait des résistances liées aux infrastructures et au besoin de contrôler alors que ces résistances étaient moins présentes dans l’établissement situé en campagne. Ce travail permet de mieux comprendre quelles sont les résistances du corps enseignant, concernant le mouvement dans les classes, afin de pouvoir optimiser les concepts mis en place. Le bien-être des élèves, du corps enseignant ainsi que l'optimisation de l'apprentissage font partie des objectifs principaux de l'école. Il nous semble alors important de comprendre le manque d'implication des écoles. Ce travail permet d'ouvrir d'autres axes de recherche qui permettraient d’améliorer ce concept du mouvement.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
4FGL J1844.4-0306: high-energy emission likely from the supernova remnant G29.37+0.1
Creators: name: Zheng, D.
name: Wang, Z.
name: Zhang, X.
name: Chen, Y.
name: Xing, Y.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Very-high-energy (VHE) observations have revealed approximately 100 TeV sources in our Galaxy, and a significant fraction of them are under investigation for understanding their origin. We report our study of one of them, HESS~J1844$-$030. It is found possibly associated with the supernova remnant (SNR) candidate G29.37+0.1, and detailed studies of the source region at radio and X-ray frequencies have suggested that this SNR is a composite one, containing a pulsar wind nebula (PWN) powered by a candidate young pulsar. As the GeV source 4FGL~J1844.4$-$0306 is also located in the region with high positional coincidence, we analyze its $γ$-ray data obtained with the Large Area Telescope on-board the {\it Fermi Gamma-ray Space Telescope }. We determine the GeV $γ$-ray emission is extended, described with a Log-Parabola function. The obtained spectrum can be connected to that of the VHE source HESS J1844$-$030. Given the properties and those from multi-frequency studies, we discuss the origin of the $γ$-ray emission by considering that the two \gr\ sources are associated. Our modeling indicates that while the TeV part would have either a hadronic (from the SNR) or a leptonic origin (from the putative PWN), the GeV part would arise from a hadronic process. Thus we conclude that 4FGL~J1844.4$-$0306 is the likely GeV counterpart to G29.37+0.1.
description: 11 pages, 5 figures, 4 tables, accepted for publication in ApJ
La pratique de la Brain Gym à l’école (1-2H)
Creators: name: Lépine, Maud
name: Métroz, Sylvie
Publisher: name: Unknown
Year: 0
Subjects: subject: société
subject: agitation
subject: élève
subject: comportement
subject: Brain Gym

description: Comment évoluer dans une société qui nous en demande toujours davantage ? Pression, tensions, stress, fatigue font aujourd’hui partie de notre quotidien et il n’est pas toujours évident de trouver des moyens efficaces pour y faire face. Même s’il semble difficile d’y croire, ces facteurs touchent également les enfants dès le plus jeune âge, dépourvus pourtant d’outils régulateurs adéquats pour évoluer de façon plus sereine au sein de notre société. Dans un contexte scolaire, où compétition et attentes se font toujours plus grandes, les enseignants sont confrontés à des comportements toujours plus agités, perturbés, agressifs et incontrôlables. Ceux-ci se retrouvent de plus en plus démunis face à ces situations et ont la plus grande peine à retrouver un climat de classe favorable aux apprentissages. C’est dans le but de trouver des ressources performantes, pour aider les élèves à réguler leur comportement, que notre recherche s’est intéressée aux effets de la pratique de la Brain Gym en classe de 1-2 HarmoS. Malgré les résultats contrastés de notre recherche, cette méthode de relaxation active nous semble tout de même pouvoir répondre en partie à ce nouveau défi que la société nous impose. Dans tous les cas, elle apporte de nombreux bénéfices qu’il serait dommage de ne pas prendre en considération.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire