cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Dimorphos Boulder Swarm
Creators: name: Jewitt, David
name: Kim, Yoonyoung
name: Li, Jing
name: Mutchler, Max
Publisher: name: arXiv
Year: 2023
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: We present deep Hubble Space Telescope images taken to examine the ejecta from the DART spacecraft impact into asteroid Dimorphos. The images reveal an extensive population of co-moving boulders, the largest of which is about 7 m in diameter (geometric albedo 0.15 assumed). Measurements of 37 boulders show a mean sky-plane velocity dispersion of 0.30+/-0.03 m/s, only slightly larger than the 0.24 m/s gravitational escape velocity from the Didymos/Dimorphos binary system. The total boulder mass, 5e6 kg (density 2200 kg/m3 assumed), corresponds to about 0.1 percent of the mass of Dimorphos and the boulders collectively carry about 3e-5 of the kinetic energy delivered by the DART spacecraft impact. The sky-plane distribution of the boulders is asymmetric, consistent with impact into an inhomogeneous, likely rubble-pile, body. Surface boulder counts on Didymos show that the observed boulder swarm could be ejected from as little as 2 percent of the surface of Dimorphos (for example a circular crater at the impact point about 50 m in diameter). The large, slow-moving boulders are potential targets to be investigated in-situ by the upcoming ESA HERA mission.
description: 22 pages, 9 figures
Analyse des effets d’un dispositif d’enseignement en compréhension de lecture sur l’acquisition de stratégies cognitives et métacognitives auprès d’élèves à besoins particuliers
Creators: name: Luiselli, Sabina
name: Venizelos, Sophie
Publisher: name: Unknown
Year: 0
Subjects: subject: Métacognition
subject: stratégies
subject: enseignement explicite
subject: compréhension en lecture
subject: élèves en difficulté
subject: médiation

description: Nous intervenons en tant que MCDI (Maître de Classe de Développement Itinérant), auprès d’élèves à besoins particuliers, intégrés dans des classes ordinaires. Dans notre pratique professionnelle, nous constatons que nos élèves manquent de stratégies ou qu’ils en possèdent des défaillantes. Ils ne savent pas quand, pourquoi et comment les utiliser. De plus, ils se retrouvent dans l’impossibilité de recontextualiser leurs connaissances. Ce constat est particulièrement marqué en compréhension de lecture, activité essentielle à tout domaine d’apprentissage. Désireuses de répondre efficacement aux besoins de nos élèves, nous avons choisi d’explorer, à travers cette recherche, les effets d’un dispositif d’enseignement explicite en compréhension de lecture sur les stratégies cognitives et métacognitives travaillées. Ce dispositif d’enseignement place le maître dans une posture de médiateur qui, de manière progressive, amène l’élève à autoréguler son activité et à prendre conscience de son processus de pensée. Cette recherche qualitative s’est déroulée en trois phases : le pré-test, l’intervention et le posttest. Elle est constituée d’un groupe expérimental et d’un groupe contrôle. Le pré- et le posttests ont visé à évaluer d’une part la compréhension en lecture et, d’autre part, les stratégies cognitives et métacognitives mobilisées. Durant l’intervention, étalonnée sur 12 séances d’enseignement, nous avons exploité l’outil Lectorino & Lectorinette (Goigoux & Cèbe, 2013). Ce mémoire a comme objectif non seulement d’évaluer l’effet d’un dispositif d’enseignement sur les stratégies en compréhension de lecture, mais d’apporter un regard plus fin sur le rôle de l’enseignant et son influence sur la réussite des élèves.
description: Mémoire professionnel, Master of arts en enseignement spécialisé
Discovery of Delta Scuti variables in eclipsing binary systems II.Southern TESS field search
Creators: name: Alicavus, F. Kahraman
name: Coban, G. C.
name: Celik, E.
name: Dogan, D. S.
name: Ekinci, O.
name: Alicavus, F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The presence of pulsating stars in eclipsing binary systems (EBs) makes these objects significant since they allow us to investigate the stellar interior structure and evolution. Different types of pulsating stars could be found in EBs such as Delta Scuti variables. Delta Scuti stars in EBs have been known for decades and the increasing number of such systems is important for understanding pulsational structure. Hence, in this study, a research was carried out on the southern TESS field to discover new Delta Scuti stars in EBs. We produced an algorithm to search for detached and semi-detached EBs considering three steps; the orbital period (P$_{orb}$)'s harmonics in the Fourier spectrum, skewness of the light curves, and classification of \textsc{UPSILON} program. If two of these steps classify a system as an EB, the algorithm also identifies it as an EB. The TESS pixel files of targets were also analyzed to see whether the fluxes are contaminated by other systems. No contamination was found. We researched the existence of pulsation through EBs with a visual inspection. To confirm Delta Scuti-type oscillations, the binary variation was removed from the light curve, and residuals were analyzed. Consequently, we identified 42 Delta Scuti candidates in EBs. The P$_{orb}$, $L$, and M$_{V}$ of systems were calculated. Their positions on the H-R diagram and the known orbital-pulsation period relationship were analyzed. We also examined our targets to find if any of them show frequency modulation with the orbital period and discovered one candidate of tidally tilted pulsators.
description: Published in MNRAS
Soziale Lage und Gesundheit in Hamburger Quartieren
Creators: name: Meinert, N.
name: Swart, E.
name: Busch, S.
Publisher: name: Nachhaltige StadtGesundheit
Year: 2022

description: Nachhaltige StadtGesundheit, 7. Konferenz "Stadt der Zukunft" - Gesunde, Nachhaltige Metropolen
Terahertz Magnetic Modulator based on Magnetically-Clustered Nanoparticles
Creators: name: Shalaby, Mostafa
name: Peccianti, Marco
name: Ozturk, Yavuz
name: Al-Naib, Ibraheem
name: Hauri, Christoph P.
name: Morandotti, Roberto
Publisher: name: arXiv
Year: 2014
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Random orientation of liquid-suspended magnetic nanoparticles (Ferrofluid) gives rise to zero net magnetic orientation. An external magnetic field tends to align them into clusters, leading to a strong linear dichroism on a propagating wave. Using 10 nm-sized Fe3O4, we experimentally realize a polarization-sensitive magnetic modulator operating at terahertz wavelengths. We reached a modulation depth of 66% using a field of 35 mT. The proposed concept offers a solution towards fundamental terahertz magnetic modulators.
ESSENTIAL OIL PRESERVATIVES WITH TIMOL
Creators: name: Inogamova Yulduz Djurayevna, Satvaldiyeva Nigina Muxammedjanovna
Publisher: name: Zenodo
Year: 2024

description: Annotation: In medicine, treatment of a certain disease and this disease. Plants used for prevention are called medicinal plants is called. Medicinal for the treatment and prevention of diseases. Medicinal plants are prepared from plants or they are medicinal preparations and pure medicinal substances are obtained. For this plants have biological properties to treat diseases from the parts rich in active substances, that is, from the underground organs of some plants (root, rhizome, tuber or onions), and some from above-ground organs (leaf, flower, fruit, the entire above-ground part of a seed, bark, or herb) is used. Sometimes types of medicine, medicinal preparation and pure substances through primary processing of plants and animals extracted essential oils, resins, oils and fats, tree resins, poisons (snake and bee venom), lanolin, prapolis and it is also prepared and obtained from others.

Keywords: plants, preparation, drug, organs, animals, water, extract, sodium, chemical.
title: La transition des élèves allophones de classe d’accueil en classe régulière
title: L’exemple du stage d’intégration de quatre élèves lausannois-es
titleType: Subtitle
Creators: name: Mathivat, Noémie
Publisher: name: Unknown
Year: 0
Subjects: subject: migration
subject: allophonie
subject: classes d’accueil
subject: intégration
subject: transition
subject: français langue de scolarisation
subject: différenciation

description: L’école lausannoise accueille quatre-cent familles migrantes chaque année et scolarise dans ses structures leurs enfants, depuis l’école enfantine jusqu’aux formations post-obligatoires. Une partie de ces jeunes est particulièrement vulnérable quant à la poursuite de sa scolarité, il s’agit des élèves en âge de 9-10-11è Harmos qui doivent en deux à cinq années apprendre l’école dans une nouvelle langue, le français, et rejoindre les classes régulières pour décrocher leur certificat de fin d’études. L’enjeu de réussite de l’ensemble du cursus est énorme et la période la plus délicate est certainement la sortie de classe d’accueil et l’intégration dans une scolarité dite ‘normale’. Ce travail décrit donc le contexte théorique et pratique dans lequel ces transitions ont lieu et se penche particulièrement sur la formule du stage d’intégration en proposant une analyse qualitative de quatre stages qui se sont déroulés dans des classes de 10VG en 2015. Suite à la description et à l’analyse de ces passages et du vécu des différents acteurs et actrices impliqué·e·s, quelques pistes de réflexion et propositions visent à donner des moyens simples de faciliter ces intégrations pour les stagiaires ainsi que des références et outils utiles aux enseignant·e·s de Français Langue de Scolarisation et de classes régulières.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
Hsc70 mediated endocytosis regulates Fgf signaling in early zebrafish development
Creators: name: Rengarajan, Charanya
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2013

description: Tightly controlled concentration gradients of morphogens provide positional information and regulate tissue differentiation and morphogenesis in multi-cellular organisms. How morphogen gradients are formed and maintained remains debated. In this study I show that fibroblast growth factor 8 (Fgf8) morphogen gradients in zebrafish embryos are established and maintained by two essential mechanisms, the signaling strength and activity.
Faint X-ray Binaries and Their Optical Counterparts in M31
Creators: name: Vulic, N.
name: Gallagher, S. C.
name: Barmby, P.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: X-ray binaries (XRBs) are probes of both star formation and stellar mass, but more importantly remain one of the only direct tracers of the compact object population. To investigate the XRB population in M31, we utilized all 121 publicly available observations of M31 totalling over 1 Ms from $\it{Chandra's}$ ACIS instrument. We studied 83 star clusters in the bulge using the year 1 star cluster catalogue from the Panchromatic Hubble Andromeda Treasury Survey. We found 15 unique star clusters that matched to 17 X-ray point sources within 1'' (3.8 pc). This population is composed predominantly of globular cluster low-mass XRBs, with one previously unidentified star cluster X-ray source. Star clusters that were brighter and more compact preferentially hosted an X-ray source. Specifically, logistic regression showed that the F475W magnitude was the most important predictor followed by the effective radius, while color (F475W$-$F814W) was not statistically significant. We also completed a matching analysis of 1566 HII regions and found 10 unique matches to 9 X-ray point sources within 3'' (11 pc). The HII regions hosting X-ray point sources were on average more compact than unmatched HII regions, but logistic regression concluded that neither the radius nor H$α$ luminosity was a significant predictor. Four matches have no previous classification and thus are high-mass XRB candidates. A stacking analysis of both star clusters and HII regions resulted in non-detections, giving typical upper limits of $\approx10^{32}$ erg s$^{-1}$, which probes the quiescent XRB regime.
description: 15 pages, 9 figures, 9 tables. Accepted for publication in The Astrophysical Journal
Burnout des étudiants de la HEP en situation de stage et stratégies de coping
Creators: name: Jean-Mairet, Benoît
name: Kernen, Adrien
Publisher: name: Unknown
Year: 0
Subjects: subject: Burnout
subject: Epuisement professionnel
subject: Coping
subject: Stratégies d’ajustement
subject: Stage
subject: Enseignement

description: Le burnout (épuisement professionnel) est un phénomène qui touche plusieurs professions, en particulier celles qui impliquent une relation d’aide, tel l’enseignement. Il s’agit d’un syndrome composé de trois dimensions : un sentiment d’épuisement émotionnel, une diminution de l’accomplissement personnel et une tendance à la déshumanisation. Le coping (stratégies d’ajustement) correspond aux réponses mises en oeuvre par un individu pour s’adapter à une situation stressante lorsqu’il s’aperçoit que ses ressources ne suffisent pas pour répondre aux demandes qu’il perçoit. Il existe de nombreuses typologies de coping. Parmi celles-ci, nous en avons choisi une qui est composée des cinq dimensions suivantes : la résolution du problème, l’évitement avec pensée positive, la recherche de soutien social, la réévaluation positive et l’auto-accusation. Notre recherche décrit le niveau de burnout de 126 étudiants de la HEP, ainsi que les stratégies d’ajustement qu’ils utilisent. Son objectif principal est d’étudier les liens entre les différentes stratégies de coping utilisées par ces étudiants en situation de stage et leur niveau de burnout. Suite à l’analyse des données récoltées, notre recherche montre que le niveau de burnout des étudiants de la HEP est modéré pour l’épuisement émotionnel et la déshumanisation, et qu’il est bas pour la diminution de l’accomplissement personnel. Nous observons également que la recherche de soutien social est la stratégie d’ajustement la plus utilisée, suivie de la résolution du problème, la réévaluation positive, l’auto-accusation et l’évitement avec pensée positive. Enfin, notre recherche montre que trois stratégies de coping (recherche de soutien social, résolution du problème, réévaluation positive) sont corrélées négativement avec au moins une des trois dimensions du burnout. Nous constatons aussi que deux autres stratégies (autoaccusation, évitement avec pensée positive) sont corrélées positivement avec au moins une des trois dimensions du burnout.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
Les enseignants utilisateurs de la banque de ressources pédagogiques BDRP
Creators: name: Donia, Sabrina
name: Délétroz, Alexandra
Publisher: name: Unknown
Year: 0
Subjects: subject: BDRP
subject: don
subject: utilitarisme
subject: dépôt
subject: utilisation
subject: ressources pédagogiques

description: La banque de ressources pédagogiques des enseignants vaudois (BDRP) offre plus de deux mille ressources pédagogiques. C’est un espace d’échange dans lequel ses membres peuvent aussi bien utiliser la matière déjà existante que déposer de nouvelles données. Nous avons ainsi cherché à comprendre s’il existait un processus différencié pour l’utilisation ou le dépôt de ces mêmes ressources. En effet, selon J.-T. Godbout, si une action implique un principe d’utilité, elle pourra alors être inclue dans le concept d’utilitarisme, alors que si une action repose sur une des caractéristiques du don, elle pourra être inclue dans le concept du don. Pour mener à bien ce projet, nous avons choisi comme procédure une méthode d’enquête, basée sur les réponses d’un questionnaire envoyé à tous les utilisateurs de la BDRP. Grâce à notre analyse, nous avons constaté que les utilisateurs s’orientaient vers une logique utilitariste alors que les donneurs s’orientaient vers une logique du don. Ainsi, nous avons pu répondre à notre question de recherche, Sur quelles logiques sociales (don ou utilitarisme) repose la prise ou la dépose de ressources pédagogiques sur la BDRP? Cependant, nous avons constaté que les donneurs sont également utilisateurs, dans nonante pour cent des cas. Or, toujours selon notre analyse, les utilisateurs ne sont pas toujours donneurs. Ainsi, les principaux donneurs le sont dans une logique du don. La communication de la BDRP peut donc s’appuyer sur les valeurs de cette logique (la liberté, la gratuité, la spontanéité, l’étranger et la notion de dette) pour promouvoir sa base. Elle doit toutefois également prendre en compte les utilisateurs qui ne sont pas encore donneurs et qui, à ce stade, fréquentent cette base dans une logique utilitariste, pour leur propre intérêt…
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
Alignment of dense molecular core morphology and velocity gradients with ambient magnetic fields
Creators: name: Pandhi, A.
name: Friesen, R. K.
name: Fissel, L.
name: Pineda, J. E.
name: Caselli, P.
name: Chen, M. C-Y.
name: Di Francesco, J.
name: Ginsburg, A.
name: Kirk, H.
name: Myers, P. C.
name: Offner, S. S. R.
name: Punanova, A.
name: Quan, F.
name: Redaelli, E.
name: Rosolowsky, E.
name: Scibelli, S.
name: Seo, Y. M.
name: Shirley, Y.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Studies of dense core morphologies and their orientations with respect to gas flows and the local magnetic field have been limited to only a small sample of cores with spectroscopic data. Leveraging the Green Bank Ammonia Survey alongside existing sub-millimeter continuum observations and Planck dust polarization, we produce a cross-matched catalogue of 399 dense cores with estimates of core morphology, size, mass, specific angular momentum, and magnetic field orientation. Of the 399 cores, 329 exhibit 2D $\mathrm{v}_\mathrm{LSR}$ maps that are well fit with a linear gradient, consistent with rotation projected on the sky. We find a best-fit specific angular momentum and core size relationship of $J/M \propto R^{1.82 \pm 0.10}$, suggesting that core velocity gradients originate from a combination of solid body rotation and turbulent motions. Most cores have no preferred orientation between the axis of core elongation, velocity gradient direction, and the ambient magnetic field orientation, favouring a triaxial and weakly magnetized origin. We find, however, strong evidence for a preferred anti-alignment between the core elongation axis and magnetic field for protostellar cores, revealing a change in orientation from starless and prestellar populations that may result from gravitational contraction in a magnetically-regulated (but not dominant) environment. We also find marginal evidence for anti-alignment between the core velocity gradient and magnetic field orientation in the L1228 and L1251 regions of Cepheus, suggesting a preferred orientation with respect to magnetic fields may be more prevalent in regions with locally ordered fields.
description: 33 pages, 28 figures, accepted to MNRAS
PUNC-Competence-Framework.pdf
Creators: name: Orlowska, Renata
Publisher: name: figshare
Year: 2023
Subjects: classificationCode: 390305
subject: Professional education and training

description: PUNC competence framework - a description and a model for developing the PUNC (competence). In higher education, students and educators often lack the knowledge and skills (and a need for tools) to learn to handle uncertainty productively. To bridge this competence gap, it is important to be aware of the nature of the experienced uncertainty, what it is triggered by, and what professionals need regarding knowledge, skills and attitude to learn to handle it productively. This document introduces the PUNC competence framework, designed to foster the development of Professional UNcertainty Competence (PUNC). It defines personalized learning outcomes rooted in individualized PUNC elements, tailored to specific professional contexts. Following the presentation of the PUNC framework, we provide a rationale for it by delving into theoretical and practice-based research.
DESIGN AND IMPLEMENTATION OF A WEB-BASED MEDICAL EMERGENCY AMBULANCE SCHEDULING SYSTEM
Creators: name: Bello, Ajibola
Publisher: name: Zenodo
Year: 2018

description: The Medical Emergency Ambulance Scheduling System is an online based application that efficiently responds to phone calls from all networks concerning medical emergencies and then dispatches an available ambulance to respond to the emergency. It has the peculiar ability to locate the shortest route to the location of emergency and contacting the nearest ambulance service on the route in other to reach the emergency point as fast as possible. It also records the details of an emergency and also the location of the emergency.
Cellular dynamical mean-field theory study of an interacting topological honeycomb lattice model at finite temperature
Creators: name: Chen, Yao-Hua
name: Hung, Hsiang-Hsuan
name: Su, Guoxiong
name: Fiete, Gregory A.
name: Ting, C. S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Topological phases originating from spin-orbit coupling have attracted great attention recently. In this work, we use cellular dynamical mean field theory with the continuous-time quantum Monte Carlo solver to study the Kane-Mele-Hubbard model supplemented with an additional third-neighbor hopping term. For weak interactions, the third-neighbor hopping term drives a topological phase transition between a topological insulator and a trivial insulator, consistent with previous fermion sign-free quantum Monte Carlo results [H.-Hung et al., Phys. Rev. B 89, 235104 (2014)]. At finite temperatures, the Dirac cones of the zero temperature topological phase boundary give rise to a metallic regime of finite width in the third-neighbor hopping. Furthermore, we extend the range of interactions into the strong coupling regime and find an easy-plane anti-ferromagnetic insulating state across a wide range of third-neighbor hopping. In contrast to the weak coupling regime, no topological phase transition occurs at strong coupling, and the ground state is a trivial anti-ferromagnetic insulating state. A comprehensive finite temperature phase diagram in the interaction-third-neighbor hopping plane is provided.
Acceptance Of The “Hamburg Home Visit For Older Citizens” In 4,716 Older People In 15 Months
Creators: name: Neumann, L.
name: Dapp, Ulrike
name: Böttcher-Völcker, S.
name: Kleinhans, E.
name: Von Renteln-Kruse, Wolfgang
Publisher: name: Nachhaltige StadtGesundheit
Year: 2022

description: Nachhaltige StadtGesundheit, 7. Konferenz "Stadt der Zukunft" - Gesunde, Nachhaltige Metropolen
Non-Equilibrium Abundances Treated Holistically (NEATH): the molecular composition of star-forming clouds
Creators: name: Priestley, F. D.
name: Clark, P. C.
name: Glover, S. C. O.
name: Ragan, S. E.
name: Fehér, O.
name: Prole, L. R.
name: Klessen, R. S.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Much of what we know about molecular clouds, and by extension star formation, comes from molecular line observations. Interpreting these correctly requires knowledge of the underlying molecular abundances. Simulations of molecular clouds typically only model species that are important for the gas thermodynamics, which tend to be poor tracers of the denser material where stars form. We construct a framework for post-processing these simulations with a full time-dependent chemical network, allowing us to model the behaviour of observationally-important species not present in the reduced network used for the thermodynamics. We use this to investigate the chemical evolution of molecular gas under realistic physical conditions. We find that molecules can be divided into those which reach peak abundances at moderate densities ($10^3 \, {\rm cm^{-3}}$) and decline sharply thereafter (such as CO and HCN), and those which peak at higher densities and then remain roughly constant (e.g. NH$_3$, N$_2$H$^+$). Evolving the chemistry with physical properties held constant at their final values results in a significant overestimation of gas-phase abundances for all molecules, and does not capture the drastic variations in abundance caused by different evolutionary histories. The dynamical evolution of molecular gas cannot be neglected when modelling its chemistry.
description: 14 pages, 13 figures. MNRAS accepted
title: Existe-il des liens entre la perception de la maîtrise de l’allemand par l’enseignant-e et ses pratiques d’enseignement ?
title: Recherche sur les liens entre la maîtrise de la langue perçue par l’enseignant-e et ses pratiques d’enseignement.
titleType: Subtitle
Creators: name: Marcuard, Laura
Publisher: name: Unknown
Year: 0
Subjects: subject: enseignement de l’allemand
subject: maîtrise de la langue
subject: pratiques d’enseignement
subject: perception
subject: liens
subject: natif

description: L’enseignement de l’allemand dépend-il de la manière dont l’enseignant-e perçoit sa maîtrise de la langue ? Cette recherche, « Existe-il des liens entre la perception de la maîtrise de l’allemand par l’enseignant-e et ses pratiques d’enseignement ? », avait pour but de répondre à cette question en mettant en exergue l’existence ou non de liens entre la maîtrise de la langue perçue par l’enseignant-e d’allemand et ses pratiques d’enseignement. Cette dernière portait uniquement sur les enseignants de septième et huitième HarmoS. Ce mémoire professionnel se compose de trois parties bien distinctes. Premièrement, plusieurs concepts sont définis de manière à fixer la recherche dans un cadre théorique préalablement défini. Ces concepts sont organisés de manière à mettre en évidence, dans un premier temps, la maîtrise de la langue ainsi que ce qui s’y rapporte et, dans un deuxième temps, les pratiques d’enseignement et ce qu’elles englobent. Des liens sont faits avec le plan d’étude actuellement en vigueur en Suisse Romande, ainsi qu’avec plusieurs ouvrages liés à cette problématique. Un profil type d’un enseignant d’allemand en septième et huitième HarmoS est présenté. Deuxièmement, la démarche analytique qualitative est présentée. Suite à cela, sont présentés les différents résultats des trois entretiens semi-directifs effectués auprès de femmes et d’hommes dans le cadre de ce travail. Les résultats obtenus sont ensuite discutés et mis en lien avec les hypothèses formulées au début de ce mémoire professionnel. Cette recherche est également mise dans une perspective plus large. Finalement, ce travail se termine avec une conclusion. Celle-ci met en avant l’aboutissement de cette recherche ainsi que les éléments qu’elle m’a apportés.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
Not Hydro: Using Neural Networks to estimate galaxy properties on a Dark-Matter-Only simulation
Creators: name: Cuevas, Cristian Hernández
name: González, Roberto E.
name: Padilla, Nelson D.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using data from TNG300-2, we train a neural network (NN) to recreate the stellar mass ($M^*$) and star formation rate (SFR) of central galaxies in a dark-matter-only simulation. We consider 12 input properties from the halo and sub-halo hosting the galaxy and the near environment. $M^*$ predictions are robust, but the machine does not fully reproduce its scatter. The same happens for SFR, but the predictions are not as good as for $M^*$. We chained neural networks, improving the predictions on SFR to some extent. For SFR, we time-averaged this value between $z=0$ and $z=0.1$, which improved results for $z=0$. Predictions of both variables have trouble reproducing values at lower and higher ends. We also study the impact of each input variable in the performance of the predictions using a leave-one-covariate-out approach, which led to insights about the physical and statistical relation between input variables. In terms of metrics, our machine outperforms similar studies, but the main discoveries in this work are not linked with the quality of the predictions themselves, but to how the predictions relate to the input variables. We find that previously studied relations between physical variables are meaningful to the machine. We also find that some merger tree properties strongly impact the performance of the machine. %We highlight the value of machine learning (ML) methods in helping understand the information contained in different variables, since with its help we were able to obtain useful insights resulting from studying the impact of input variables on the resulting behaviour of galaxy properties. We conclude that ML models are useful tools to understand the significance of physical different properties and their impact on target characteristics, as well as strong candidates for potential simulation methods.
description: 17 pages, 16 figures, to be published in MNRAS
Les interactions enseignant-e – élèves selon le genre de l’élève dans la discipline des mathématiques
Creators: name: Hofmeister, Mathias
name: Blatti, Sabine
Publisher: name: Unknown
Year: 0
Subjects: subject: genre
subject: école
subject: mathématiques
subject: interactions
subject: enseignement

description: Ce mémoire professionnel s’inscrit dans un contexte mathématique, plus précisément dans l’observation et l’analyse des interactions maître-élèves, et s’intéresse aux éventuelles différences de ces dernières en fonction du genre de l’élève. En effet, si des différences d’interaction sont observables en fonction du genre, il serait utile et intéressant d’en avoir conscience et d’en tenir compte afin d’éventuellement pouvoir améliorer notre pratique enseignante. De plus, entre en ligne de compte une question plus générale relative au domaine de l’éthique : est-ce normal de privilégier un genre? La question de recherche posée est donc la suivante : dans quelle mesure le genre de l’élève influence-t-il les interactions maître-élèves en mathématiques? Ces différences d’interaction selon le genre de l’élève pourraient avoir des répercussions conséquentes sur le développement socioculturel de l’enfant, que ce soit dans un contexte scolaire ou sociétal. La récolte de données se fera principalement à l’aide d’une grille d’observation, ainsi que d’études de vidéos qui nous permettront d’analyser et classifier les interactions entre maître et élèves observées selon différents critères établis préalablement. Nous réaliserons également un entretien semi-dirigé afin de repérer certaines représentations des deux enseignants interrogés. Ces mêmes critères nous permettront de définir des profils d’élèves qui nous aideront par la suite à confirmer ou réfuter nos hypothèses de recherche préalables.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
Ligand-dependent opening of the multiple AMPA receptor conductance states: a concerted model
Creators: name: Roy, Ranjita Dutta
name: Rosenmund, Christian
name: Edelstein, Stuart J
name: Novère, Nicolas Le
Publisher: name: arXiv
Year: 2014
Subjects: subject: Molecular Networks (q-bio.MN)
subject: Subcellular Processes (q-bio.SC)
subject: FOS: Biological sciences

description: Modulation of the properties of AMPA receptors at the post-synaptic membrane is one of the main suggested mechanisms behind synaptic plasticity in the central nervous system of vertebrates. Electrophysiological recordings of single channels stimulated with agonists showed that both recombinant and native AMPA receptors visit multiple conductance states in an agonist concentration dependent manner. We propose an allosteric model of the multiple conductance states based on concerted conformational transitions of the four subunits, as an iris diaphragm. Our model predicts that the thermodynamic behaviour of the conductance states upon full and partial agonist stimulations can be described with increased affinity of receptors as they progress to higher conductance states. The model also predicts existence of AMPA receptors in non-liganded conductive substates. However, spontaneous openings probability decreases with increasing conductances. Finally, we predict that the large conductance states are stabilized within the rise phase of a whole-cell EPSC in glutamatergic hippocampal neurons. Our model provides a mechanistic link between ligand concentration and conductance states that can explain thermodynamic and kinetic features of AMPA receptor gating.
description: 4 figures, models available on demand. They will be published by BioModels Database upon publication of the article
title: Les représentations en tant qu’obstacle
title: L’exemple du miracle en Histoire et sciences des religions
titleType: Subtitle
Creators: name: Pezzoli, Olivier
Publisher: name: Unknown
Year: 0
Subjects: subject: Obstacle
subject: représentations
subject: miracle
subject: HSR
subject: bouddhisme
subject: matrice socioculturelle et historique

description: Ce travail de mémoire interroge, à travers une séquence d’enseignement en histoire et sciences des religions, les représentations qu’ont les élèves de la classe au sujet du mot « miracle ». Ces représentations, tout comme la source distribuée aux élèves ont été considérées comme des obstacles à l’apprentissage. Aussi bien les obstacles et que les représentations ont été questionnés, sur un plan didactique, mais aussi plus large, en inscrivant cette réflexion sous l’angle des études en histoire et sciences des religions. Par ailleurs, l’hypothèse selon laquelle les représentations des élèves ne seraient pas un obstacle particulier a été vérifiée dans le cadre de ce travail de mémoire ; les résultats ont montré la véracité de l’hypothèse et ont révélé d’autres complications auxquelles nous n’avions pas été sensibles.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Swarm Intelligence Based Multi-phase OPF For Peak Power Loss Reduction In A Smart Grid
Creators: name: Anwar, Adnan
name: Mahmood, A. N.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Neural and Evolutionary Computing (cs.NE)
subject: FOS: Computer and information sciences

description: Recently there has been increasing interest in improving smart grids efficiency using computational intelligence. A key challenge in future smart grid is designing Optimal Power Flow tool to solve important planning problems including optimal DG capacities. Although, a number of OPF tools exists for balanced networks there is a lack of research for unbalanced multi-phase distribution networks. In this paper, a new OPF technique has been proposed for the DG capacity planning of a smart grid. During the formulation of the proposed algorithm, multi-phase power distribution system is considered which has unbalanced loadings, voltage control and reactive power compensation devices. The proposed algorithm is built upon a co-simulation framework that optimizes the objective by adapting a constriction factor Particle Swarm optimization. The proposed multi-phase OPF technique is validated using IEEE 8500-node benchmark distribution system.
description: IEEE PES GM 2014, Washington DC, USA
interrelationship between depressed mood, functional decline and disability over a ten year observational period within the Longitudinal Urban Cohort Ageing Study (LUCAS)
Creators: name: Dapp, Ulrike
name: Minder, Christoph E.
name: Golgert, Stefan
name: Neumann, Lilli
name: Von Renteln-Kruse, Wolfgang
Publisher: name: Nachhaltige StadtGesundheit
Year: 2022

description: Nachhaltige StadtGesundheit, 7. Konferenz "Stadt der Zukunft" - Gesunde, Nachhaltige Metropolen
The phase-space of boxy-peanut and X-shaped bulges in galaxies I. Properties of non-periodic orbits
Creators: name: Patsis, P. A.
name: Katsanikas, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chaotic Dynamics (nlin.CD)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Dynamical Systems (math.DS)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 37J15, 37J20, 37J25, 37J35, 37J45, 70H05, 70H07, 70H08, 70H12, 70H14, 70H33, 85A05, 85A15

description: The investigation of the phase-space properties of structures encountered in a dynamical system is essential for understanding their formation and enhancement. In the present paper we explore the phase space in energy intervals where we have orbits that act as building blocks for boxy-peanut (b/p) and "{\sf X}-shaped" structures in rotating potentials of galactic type. We underline the significance of the rotational tori around the 3D families x1v1 and x1v1$^{\prime}$ that have been bifurcated from the planar x1 family. These tori play a multiple role: (i) They belong to quasi-periodic orbits that reinforce the local density. (ii) They act as obstacles for the diffusion of chaotic orbits and (iii) they attract a large number of chaotic orbits that become sticky to them. There are also bifurcations of unstable families (x1v2, x1v2$^{\prime}$). Their unstable asymptotic curves wind around the x1v1 and x1v1$^{\prime}$ tori generating orbits with hybrid morphologies between that of x1v1 and x1v2. In addition, a new family of multiplicity 2, called x1mul2, is found to be important for the peanut construction. Our work shows also that there are peanut-supporting orbits before the vertical ILR. Non-periodic orbits associated with the x1 family secure this contribution as well as the support of b/p structures at several other energy intervals. Non-linear phenomena associated with complex instability of single and double multiplicity families of periodic orbits show that these structures are not interrupted in regions where such orbits prevail. Depending on the main mechanism behind their formation, boxy bulges exhibit different morphological features. Finally our analysis indicates that "X" features shaped by orbits in the neighbourhood of x1v1 and x1v1$^{\prime}$ periodic orbits are pronounced only in side-on or nearly end-on views of the bar.
description: 22 pages, 24 figures, accepted for publication in the MNRAS
Probing the variations in the timing of the Sun's polar magnetic field reversals through observations and surface flux transport simulations
Creators: name: Golubeva, Elena M.
name: Biswas, Akash
name: Khlystova, Anna I.
name: Kumar, Pawan
name: Karak, Bidya Binay
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: The polar field reversal is a crucial process in the cyclic evolution of the large-scale magnetic field of the Sun.Various important characteristics of a solar cycle, such as its duration and strength, and also the cycle predictability, are determined by the polar field reversal time. While the regular measurements of solar magnetic field have been accumulated for more than half a century, there is no consensus in the heliophysics community concerning the interpretation of the Sun's polar field measurements and especially the determination of polar field reversal time. There exists a severe problem of non-reproducibility in the reported results even from studies of the same observational dataset, and this causes an obstacle to make more accurate forecasts of solar cycle. Here, we analyze the solar magnetograms from four instruments for the last four cycles, to provide a more correct interpretation of the polar field observations and to find more accurate time of the reversals. We show the absence of triple (multipolar) reversals in Cycles 21 - 24, significant variations in the time interval between reversals in the hemispheres and in the time interval between a reversal and a cycle beginning. In order to understand the origin of the reversal time variation, we perform Surface Flux Transport (SFT) simulations and find out that the presence of the 'anomalous' bipolar magnetic regions (BMRs) in different phases of a cycle can cause cycle-to-cycle variations of the reversal time within the similar range found in observations.
description: Accepted for publication in MNRAS
Gesundheit und nachhaltige Stadtentwicklung im Spannungsfeld: Analysen, Strategien & Praxis : Dokumentation der 7. Konferenz „Stadt der Zukunft – Gesunde, nachhaltige Metropolen“ am 18. November 2021
Creators: name: Fehr, Rainer
name: Gatting, Sinja
name: Ritzinger, Silja
name: Hornberg, Claudia
Publisher: name: Nachhaltige StadtGesundheit
Year: 2022

description: Nachhaltige StadtGesundheit, 7. Konferenz "Stadt der Zukunft" - Gesunde, Nachhaltige Metropolen
Super-Nyquist asteroseismology of solar-like oscillators with Kepler and K2 - expanding the asteroseismic cohort at the base of the red-giant branch
Creators: name: Chaplin, W. J.
name: Elsworth, Y.
name: Davies, G. R.
name: Campante, T. L.
name: Handberg, R.
name: Miglio, A.
name: Basu, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We consider the prospects for detecting solar-like oscillations in the "super-Nyquist" regime of long-cadence (LC) Kepler photometry, i.e., above the associated Nyquist frequency of approximately 283 μHz. Targets of interest are cool, evolved subgiants and stars lying at the base of the red-giant branch. These stars would ordinarily be studied using the short-cadence (SC) data, since the associated SC Nyquist frequency lies well above the frequencies of the detectable oscillations. However, the number of available SC target slots is quite limited. This imposes a severe restriction on the size of the ensemble available for SC asteroseismic study.We find that archival Kepler LC data from the nominal Mission may be utilized for asteroseismic studies of targets whose dominant oscillation frequencies lie as high as approximately 500 μHz, i.e., about 1.75- times the LC Nyquist frequency. The frequency detection threshold for the shorter-duration science campaigns of the re-purposed Kepler Mission, K2, is lower. The maximum threshold will probably lie somewhere between approximately 400 and 450 μHz. The potential to exploit the archival Kepler and K2 LC data in this manner opens the door to increasing significantly the number of subgiant and low-luminosity red-giant targets amenable to asteroseismic analysis, overcoming target limitations imposed by the small number of SC slots.We estimate that around 400 such targets are now available for study in the Kepler LC archive. That number could potentially be a lot higher for K2, since there will be a new target list for each of its campaigns.
description: Accepted for publication in MNRAS; 11 pages, 7 figures; reference list updated
Delayed Appearance and Evolution of Coronal Lines in the TDE AT2019qiz
Creators: name: Short, P.
name: Lawrence, A.
name: Nicholl, M.
name: Ward, M.
name: Reynolds, T. M.
name: Mattila, S.
name: Yin, C.
name: Arcavi, I.
name: Carnall, A.
name: Charalampopoulos, P.
name: Gromadzki, M.
name: Jonker, P. G.
name: Kim, S.
name: Leloudas, G.
name: Mandel, I.
name: Onori, F.
name: Pursiainen, M.
name: Schulze, S.
name: Villforth, C.
name: Wevers, T.
Publisher: name: arXiv
Year: 2023
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Tidal disruption events (TDEs) occur when a star gets torn apart by a supermassive black hole as it crosses its tidal radius. We present late-time optical and X-ray observations of the nuclear transient AT2019qiz, which showed the typical signs of an optical-UV transient class commonly believed to be TDEs. Optical spectra were obtained 428, 481 and 828 rest-frame days after optical lightcurve peak, and a UV/X-ray observation coincided with the later spectrum. The optical spectra show strong coronal emission lines, including [Fe VII], [Fe X], [Fe XI] and [Fe XIV]. The Fe lines rise and then fall, except [Fe XIV] which appears late and rises. We observe increasing flux of narrow H-alpha and H-beta and a decrease in broad H-alpha flux. The coronal lines have FWHMs ranging from ~150 - 300km/s, suggesting they originate from a region between the broad and narrow line emitting gas. Between the optical flare and late-time observation, the X-ray spectrum softens dramatically. The 0.3-1 keV X-ray flux increases by a factor of ~50 while the hard X-ray flux decreases by a factor of ~6. WISE fluxes also rose over the same period, indicating the presence of an infrared echo. With AT2017gge, AT2019qiz is one of two examples of a spectroscopically-confirmed optical-UV TDE showing delayed coronal line emission, supporting speculations that Extreme Coronal Line Emitters in quiescent galaxies can be echos of unobserved past TDEs. We argue that the coronal lines, narrow lines, and infrared emission arise from the illumination of pre-existing material likely related to either a previous TDE or AGN activity.
La condition physique des élèves à l'école professionnelle
Creators: name: Michel, Claire
name: Zeiter, Sibylle
Publisher: name: Unknown
Year: 0
Subjects: subject: Condition physique
subject: perception du soi physique
subject: désir de maigrir
subject: école professionnelle
subject: Canton de Vaud
subject: projet FITEPS

description: Cette étude prend place dans le cadre de l’étude FITEPS visant à comparer la condition physique des élèves en écoles professionnelle avec les élèves de gymnase, ainsi que les différents paramètres du style de vie pouvant influencer celle-ci. Dans ce mémoire nous nous intéresserons uniquement aux élèves en école professionnelle. Un test de condition physique ainsi qu’un questionnaire portant sur la perception des compétences physique et du style de vie des élèves ont été effectués au sein de plusieurs classes. La condition physique des jeunes dans le canton de Vaud connaît une phase de déclin depuis plusieurs années, pouvant entrainer des répercussions à court comme à long terme sur leur état de santé. Qu’en est-il actuellement sur le terrain et quelle perception les jeunes ont-ils de leur santé par rapport à leur condition physique réelle ? Voilà la question principale de ce mémoire. La perception qu’ont les jeunes de leur santé a été évaluée par questionnaire tandis que leur condition physique a été évaluée par test navette. Dans un deuxième temps, le BMI des élèves sera comparé avec la question portant sur le désir de maigrir afin de voir où ces jeunes se situent par rapport à leur image corporelle. Un cadre théorique permettra de passer en revue les études et constats effectués sur la condition physique des jeunes dans le monde et plus précisément en Suisse et dans le Canton de Vaud, ainsi que sur l’état de santé perçu corrélé à l’activité physique. Ceci permettra ensuite de situer les résultats de notre étude par rapport à la littérature existante et donnera des pistes de réflexions pour l’analyse de nos résultats.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II