cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: Sensibilisation/initiation précoce à une deuxième langue
title: l'effet de l'âge sur la prononciation
titleType: Subtitle
Creators: name: Kapossy, Klio
Publisher: name: Unknown
Year: 0
Subjects: subject: «L’âge du langage » et de l’imprégnation
subject: L’introduction précoce de l’allemand
subject: La prononciation et le spectre de fréquence d’une langue seconde
subject: L’apprentissage global ou holistique
subject: La motivation pour l’apprentissage d’une langue

description: Ce mémoire professionnel a pour but de percevoir une différence dans l’acquisition, au niveau de la prononciation, d’une langue seconde (ici l’allemand) par des élèves entre 4 et 8 ans et demi, et essayer ainsi d’identifier un âge particulièrement propice à un apprentissage plus naturel des langues, dans l’optique d’une amélioration du résultat effectif à la fin de la scolarité obligatoire. Si les jeunes enfants ont une plus grande capacité à apprendre une langue par imprégnation, par l’oral, par l’écoute et l’imitation, il serait bien d’en tirer profit à temps. Des élèves de CIN et de CYP 1 ont donc bénéficié de cours en allemand de ma part, pendant un semestre entier, au rythme de deux périodes par semaine. C’est l’enseignement de diverses disciplines au travers de cette langue et non de la langue en tant qu’objet qui a été visé. Par là, en redonnant à la langue sa raison d’être, c’est-à-dire un moyen de communication par excellence, la motivation des élèves devait s’en trouver améliorée. À la fin du semestre, ces enfants ont été soumis à une évaluation orale. L’enregistrement de cette évaluation a permis de déterminer dans quelle mesure il y aurait une corrélation entre l’âge de l’apprenant et sa qualité de prononciation. Pour étayer cette recherche par le champ littéraire, une sélection d’œuvres a été effectuée autour du concept de « l’âge du langage » ou de « la fenêtre du langage » défendu en particulier par G. Dalgalian en 2005. Selon lui, le bilinguisme précoce, c’est le fait d’acquérir les deux langues à l’âge du langage, c'est-à-dire avant sept ans. Acquérir une langue avant ou après l’âge de sept ans ne relèverait pas du même processus. En effet, avant cet âge, il s’agirait d’une acquisition naturelle et après cet âge, d’un apprentissage volontaire et organisé. Les résultats de l’expérience ne sont pas valables sur le plan général puisqu’ils sont restreints à un certain champ d’action et à une méthode d’enseignement personnelle.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
Chopin: Combining Distributed and Centralized Schedulers for Self-Adjusting Datacenter Networks
Creators: name: Schiff, Neta Rozen
name: Foerster, Klaus-Tycho
name: Schmid, Stefan
name: Hay, David
Publisher: name: arXiv
Year: 2022
Subjects: subject: Distributed, Parallel, and Cluster Computing (cs.DC)
subject: FOS: Computer and information sciences

description: The performance of distributed and data-centric applications often critically depends on the interconnecting network. Emerging reconfigurable datacenter networks (RDCNs) are a particularly innovative approach to improve datacenter throughput. Relying on a dynamic optical topology which can be adjusted towards the workload in a demand-aware manner, RDCNs allow to exploit temporal and spatial locality in the communication pattern, and to provide topological shortcuts for frequently communicating racks. The key challenge, however, concerns how to realize demand-awareness in RDCNs in a scalable fashion. This paper presents and evaluates Chopin, a hybrid scheduler for self-adjusting networks that provides demand-awareness at low overhead, by combining centralized and distributed approaches. Chopin allocates optical circuits to elephant flows, through its slower centralized scheduler, utilizing global information. Chopin's distributed scheduler is orders of magnitude faster and can swiftly react to changes in the traffic and adjust the optical circuits accordingly, by using only local information and running at each rack separately.
description: To appear at OPODIS 2022
Casimir Pistons with General Boundary Conditions
Creators: name: Fucci, Guglielmo
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this work we analyze the Casimir energy and force for a scalar field endowed with general self-adjoint boundary conditions propagating in a higher dimensional piston configuration. The piston is constructed as a direct product $I\times N$, with $I=[0,L]\subset\mathbb{R}$ and $N$ a smooth, compact Riemannian manifold with or without boundary. The study of the Casimir energy and force for this configuration is performed by employing the spectral zeta function regularization technique. The obtained analytic results depend explicitly on the spectral zeta function associated with the manifold $N$ and the parameters describing the general boundary conditions imposed. These results are then specialized to the case in which the manifold $N$ is a $d$-dimensional sphere.
description: LaTex, 27 pages
title: La ferme de Démoret,
title: un lieu d'accompagnement en quête d'une scolarité plus harmonieuse...
titleType: Subtitle
Creators: name: Poncet, Elsa
Publisher: name: Unknown
Year: 0
Subjects: subject: Elèves difficiles
subject: Matas à la Ferme
subject: Interventions
subject: Trouble du comportement
subject: Réinsertion
subject: Collaboration

description: De toute part, nous avons entendu ou nous entendons parler « d’élèves difficiles ». Et depuis quelque temps, le sigle Matas (Module d’Activités Temporaires et Alternatives à la Scolarité) est souvent accolé à ces termes dans les journaux. Mais mise à part le fait qu’il s’agit d’un espace accueillant les élèves difficiles, nous n’en savons guère plus! Malgré le fait que les médias parlent des élèves difficiles, j’ai comme l’impression qu’il n’est que trop souvent question d’un discours de surface, n’effleurant qu’en partie la problématique de ces derniers. Or pour comprendre l'intérêt d’un Matas, il est nécessaire de prendre conscience de l’identité de ce type d’élèves. Au travers de ce mémoire, je vous propose donc d’aller explorer plus en profondeur un Matas et ses enfants dépeints comme étant des élèves difficiles. Toutefois, il ne s’agit pas pour moi de traiter de n’importe quel Matas, mais du projet pilote mis sur pied dans une Ferme en 2004. C’est en raison du plus grand recul dont ce dernier était doté, de mon intérêt pour la relation entre l’homme et l’animal, ainsi que de la proximité du lieu, que mon choix s’est alors porté sur la Ferme de Démoret. Les objectifs de cette exploration furent alors d’en savoir un peu plus sur le fonctionnement de ce Matas, les buts visés, mais surtout de mettre en avant les éléments réunis pour accompagner au mieux les élèves admis. C’est grâce à des entretiens menés avec différents acteurs concernés par un ou plusieurs élèves difficiles, ainsi qu’avec l’un d’entre eux que j’ai pu atteindre les objectifs fixés au début de ce mémoire. Ainsi, pour accompagner au mieux un élève-Matas, le fonctionnement de la Ferme de Démoret requiert huits éléments, à savoir ; la prise d’un rôle d’acteur par l’élève ; la définition du rôle de chaque intervenant de la Ferme ; une relation de confiance tant entre l’équipe de la Ferme qu’entre celle-ci et les enfants ; la présence d’activités concrètes ; un travail avec les animaux ; un lieu coupé du monde ; la collaboration des parents ; celle des enseignants et autres professionnels concernés par l’élève . Ce mémoire porte donc sur les moyens mis en œuvre à la Ferme de Démoret pour gérer et accompagner les élèves difficiles, en vue d’une réinsertion en classe. La problématique de ce genre d’élèves étant relativement vaste, j’ai consacré quelques chapitres aux enfants souffrant d’un trouble du comportement diagnostiqué. Et dans l’idée d’approfondir les pistes d’actions possibles auprès d’un élève porteur d’un trouble du comportement diagnostiqué ou non, j’ai effectué des recherches concernant les interventions pouvant être mises en œuvre en classe.
description: Mémoire professionnel, Bachelor of arts en enseignement pour les degrés préscolaire et primaire
La diversità degli output della ricerca
Creators: name: Peroni, Silvio
Publisher: name: Zenodo
Year: 2023
Subjects: open science
valutazione della ricerca
output della ricerca
dati
metodologie
software
review
open access
unesco
coara

description: Slide della presentazione intitolata "La diversità degli output della ricerca" nel contesto dell'evento "Scienza aperta e valutazione della ricerca" promosso dall'Università di Bologna nel contesto della Open Access Week 2023.
The Peculiar Radio Source M17 JVLA 35
Creators: name: Rodriguez, L. F.
name: Carrasco-Gonzalez, C.
name: Montes, G.
name: Tapia, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: M17 JVLA 35 is a radio source detected in projection against the M17 HII region. In recent observations, its spectrum between 4.96 and 8.46 GHz was found to be positive and very steep, with $α\geq 2.9 \pm 0.6$ ($S_ν\propto ν^α$). Here we present Very Large Array observations made in the 18.5 to 36.5 GHz region that indicate a spectral turnover at $\sim$13 GHz and a negative spectral index ($α\simeq -2.0$) at higher frequencies. The spectrum is consistent with that of an extragalactic High Frequency Peaker (HFP). However, M17 JVLA 35 has an angular size of $\sim0\rlap.{''}5$ at 8.46 GHz, while HFPs have extremely compact, milliarcsecond dimensions. We discuss other possible models for the spectrum of the source and do not find them feasible. Finally, we propose that M17 JVLA35 is indeed an HFP but that its angular size becomes broadened by plasma scattering as its radiation travels across M17. If our interpretation is correct, accurate measurements of the angular size of M17 JVLA35 across the centimeter range should reveal the expected $ν^{-2}$ dependence.
description: 14 pages, 3 figures
FAN-Trans: Online Knowledge Distillation for Facial Action Unit Detection
Creators: name: Yang, Jing
name: Shen, Jie
name: Lin, Yiming
name: Hristov, Yordan
name: Pantic, Maja
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Due to its importance in facial behaviour analysis, facial action unit (AU) detection has attracted increasing attention from the research community. Leveraging the online knowledge distillation framework, we propose the ``FANTrans" method for AU detection. Our model consists of a hybrid network of convolution and transformer blocks to learn per-AU features and to model AU co-occurrences. The model uses a pre-trained face alignment network as the feature extractor. After further transformation by a small learnable add-on convolutional subnet, the per-AU features are fed into transformer blocks to enhance their representation. As multiple AUs often appear together, we propose a learnable attention drop mechanism in the transformer block to learn the correlation between the features for different AUs. We also design a classifier that predicts AU presence by considering all AUs' features, to explicitly capture label dependencies. Finally, we make the attempt of adapting online knowledge distillation in the training stage for this task, further improving the model's performance. Experiments on the BP4D and DISFA datasets demonstrating the effectiveness of proposed method.
description: 9 pages, 6 figures
Dynamics of multiple bubbles, excited by femtosecond filament in water: Role of aberrations
Creators: name: Potemkin, F. V.
name: Mareev, E. I.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Using shadow photography, we observed microsecond time scale evolution of multiple cavitation bubbles, excited by tighty focused femtosecond laser pulse in water under supercritical power regime (~100 Pcr). In these extreme conditions high energy delivery into the microvolume of liquid sample leads to creation of single filament which becomes a source of cavitation region formation. When aberrations were added to the optical scheme the hot spots along the filament axis are formed. At high energies (more than 40uJ) filaments in these hot spots are fired and, as a result, complex pattern of cavitation bubbles is created. The bubbles can be isolated from each other or build exotic drop-shaped cavitation region, which evolution at the end of its life, before the final collapse, contains the jet emission. The dynamics of the cavitation pattern was investigated from pulse energy and focusing. We found that greater numerical aperture of the focusing optics leads to greater cavitation area length. The strong interaction between bubbles was also observed. This leads to a significant change of bubble evolution, which is not yet in accordance with Rayleigh model.
description: 5 pages, 4 figures
Dynamical Stability of Slip-stacking Particles
Creators: name: Eldred, Jeffrey
name: Zwaska, Robert
Publisher: name: arXiv
Year: 2014
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Classical Physics (physics.class-ph)
subject: FOS: Physical sciences

description: We study the stability of particles in slip-stacking configuration, used to nearly double proton beam intensity at Fermilab. We introduce universal area factors to calculate the available phase space area for any set of beam parameters without individual simulation. We find perturbative solutions for stable particle trajectories. We establish Booster beam quality requirements to achieve 97\% slip-stacking efficiency. We show that slip-stacking dynamics directly correspond to the driven pendulum and to the system of two standing-wave traps moving with respect to each other.
description: Supplemental Material appended to paper
title: L'éducation physique et sportive à l'école
title: l'implication à l'adhésion : confrontation pratique des aspects théoriques
titleType: Subtitle
Creators: name: Grivel, Guillaume
name: Aguilar, Roberto
Publisher: name: Unknown
Year: 0
Subjects: subject: Education physique et sportive (EPS)
subject: Implication
subject: Adhésion
subject: Motivation intrinsèque
subject: Plaisir
subject: Enseignement

description: Les problèmes liés aux maladies de la sédentarité sont une préoccupation majeure de notre société. En effet, l’étude Sport Suisse 2008 révèle que plus de la moitié des jeunes (10-19 ans) ne bougent pas assez et sont donc exposés au risque de contracter l’une de ces maladies. L’école obligatoire ainsi que la formation gymnasiale en tant qu’institutions formatrices de citoyens se doit de considérer cette problématique. L’éducation physique et sportive (EPS) est la branche la plus à même pour l’intégrer et la résoudre. Pour ce faire, les professionnels de l’enseignement en EPS doivent mettre en place des stratégies qui permettent aux élèves de développer une motivation intrinsèque à la pratique sportive - pratiquer une activité physique pour le simple plaisir qu’elle procure – car seul ce pôle optimal de la motivation est le garant de l’implication des étudiants en cours d’EPS et, plus tard, de leur adhésion à long terme à une pratique sportive. Ainsi, le propos de ce mémoire professionnel, pour la formation secondaire II, est de constituer un cadre théorique sur la psychologie de la motivation appliqué à l’EPS. Selon les théories les plus influentes dans ce domaine, il faut travailler à la satisfaction des trois besoins psychologiques fondamentaux pour permettre aux élèves de glisser d’une motivation extrinsèque, orientée vers l’atteinte d’un objectif, vers une motivation intrinsèque. Ces besoins sont : o l’autonomie, o la compétence, o l’appartenance sociale. Dans ce mémoire professionnel secondaire 1, des solutions pour compléter ces besoins ont été élaborées, questionnées et discutées.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
title: Rédiger une synthèse à partir d'une grille d'analyse
title: l'analyse de document iconographique face à l'analyse de texte
titleType: Subtitle
Creators: name: Ramseier, Sébastien
name: Zehnder, Delphine
Publisher: name: Unknown
Year: 0
Subjects: subject: Analyse
subject: Texte
subject: Image
subject: Grilles
subject: Moyen Age
subject: Synthèse

description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
RoxyCOST_Advancing Open Resources for Mass Spectrometry Methods & Data Processing
Creators: name: Price, Elliott J.
Publisher: name: Zenodo
Year: 2022
Subjects: Open science
Metabolomics
Exposomics

description: Presentation given at RoxyCOST metabolomics training school, July 4th - July 6th, 2022, Royal Holloway University of London, UK.
description: Research Infrastructure RECETOX RI (No LM2018121) financed by the Ministry of Education, Youth and Sports, and Operational Programme Research, Development and Innovation - project CETOCOEN EXCELLENCE (No CZ.02.1.01/0.0/0.0/17_043/0009632).
Unleash the Power of Context: Enhancing Large-Scale Recommender Systems with Context-Based Prediction Models
Creators: name: Hartman, Jan
name: Klein, Assaf
name: Kopič, Davorin
name: Silberstein, Natalia
Publisher: name: arXiv
Year: 2023
Subjects: subject: Information Retrieval (cs.IR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: In this work, we introduce the notion of Context-Based Prediction Models. A Context-Based Prediction Model determines the probability of a user's action (such as a click or a conversion) solely by relying on user and contextual features, without considering any specific features of the item itself. We have identified numerous valuable applications for this modeling approach, including training an auxiliary context-based model to estimate click probability and incorporating its prediction as a feature in CTR prediction models. Our experiments indicate that this enhancement brings significant improvements in offline and online business metrics while having minimal impact on the cost of serving. Overall, our work offers a simple and scalable, yet powerful approach for enhancing the performance of large-scale commercial recommender systems, with broad implications for the field of personalized recommendations.
title: Quelle intégration des TIC dans l'enseignement du niveau secondaire I ?
title: L'étude de cas de l'établissement secondaire de Prilly
titleType: Subtitle
Creators: name: Blake, Meredith
Publisher: name: Unknown
Year: 0
Subjects: subject: TIC (Technologies de l’information et de la communication)
subject: Utilisation des TIC dans l’enseignement
subject: Modèle d’intégration
subject: Étude de cas
subject: Rôle de la formation
subject: Rôle de la perception de ses compétences techniques

description: Les enseignants doivent s’adapter et adapter leurs techniques d’enseignement à leur temps et la société dans laquelle ils se trouvent : entre autres, le développement rapide des nouvelles technologies les oblige à se former et innover continuellement leur enseignement. La formation pédagogique insiste sur l’intégration des technologies mais quelle intégration est réellement faite sur le terrain ? Cette enquête de terrain analyse l’intégration des technologies au sein de l’établissement secondaire de Prilly à l’aide d’un modèle d’intégration. Le modèle identifie les caractéristiques relatives à trois phases successives : sur le terrain les pratiques et les attitudes des enseignants sont répertoriées selon ces phases. Au moyen du modèle et des observations sur le terrain, le rôle de la formation et de la perception de ses compétences (confiance) sur le niveau d’intégration est analysé.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
Numerical modeling of optical modes in topological soft matter
Creators: name: Mur, Urban
name: Ravnik, Miha
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Vector and vortex laser beams are desired in many applications and are usually created by manipulating the laser output or by inserting optical components in the laser cavity. Distinctly, inserting liquid crystals into the laser cavity allows for extensive control over the emitted light due to their high susceptibility to external fields and birefringent nature. In this work we demonstrate diverse optical modes for lasing as enabled and stablised by topological birefringent soft matter structures using numerical modelling. We show diverse structuring of light -- with different 3D intensity and polarization profiles -- as realised by topological soft matter structures in radial nematic droplet, in 2D nematic cavities of different geometry and including topological defects with different charges and winding numbers, in arbitrary varying birefringence fields with topological defects and in pixelated birefringent profiles. We use custom written FDFD code to calculate emergent electromagnetic eigenmodes. Control over lasing is of a particular interest aiming towards the creation of general intensity, polarization and topologically shaped laser beams.
Recent Progress in Synthesis of Nano-and Atomic-Sized Catalysts
Creators: Laishram, Devika
Publisher: name: University of Alberta Library
Year: 2022

Well-defined nano- and atomic-sized heterogeneous catalysts with extremely high catalytic activities and unique selectivities show promise in addressing the critical energy- and environment-related challenges of this century. The exceptional properties of these catalysts, such as their electronic and geometric structures and the effective interactions between metals and supports, give rise to unprecedented catalytic efficiency over that of conventional catalysts. The facile prospects for tuning the active sites of these catalysts pave the way to optimizing their activities, selectivities, and stabilities, thus offering extensive application possibilities in significant industry-related catalytic reactions. A prerequisite for synthesizing nano- and atomic-sized catalyst is to prepare extremely disperse nano- and subnanoscale atoms on suitable supports. This book chapter summarizes various synthesis methods employed to synthesize nano- and atomic-scale catalysts.
In Silico Derivation of HLA-Specific Alloreactivity Potential from Whole Exome Sequencing of Stem Cell Transplant Donors and Recipients: Understanding the Quantitative Immuno-biology of Allogeneic Transplantation
Creators: name: Jameson-Lee, Max
name: Koparde, Vishal
name: Griffith, Phil
name: Scalora, Allison F.
name: Sampson, Juliana K.
name: Khalid, Haniya
name: Sheth, Nihar U.
name: Batalo, Michael
name: Serrano, Myrna G.
name: Roberts, Catherine H.
name: Hess, Michael L.
name: Buck, Gregory A.
name: Neale, Michael C.
name: Manjili, Masoud H.
name: Toor, Amir A.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantitative Methods (q-bio.QM)
subject: Genomics (q-bio.GN)
subject: FOS: Biological sciences

description: Donor T cell mediated graft vs. host effects may result from the aggregate alloreactivity to minor histocompatibility antigens (mHA) presented by the HLA in each donor-recipient pair (DRP) undergoing stem cell transplantation (SCT). Whole exome sequencing has demonstrated extensive nucleotide sequence variation in HLA-matched DRP. Non-synonymous single nucleotide polymorphisms (nsSNPs) in the GVH direction (polymorphisms present in recipient and absent in donor) were identified in 4 HLA-matched related and 5 unrelated DRP. The nucleotide sequence flanking each SNP was obtained utilizing the ANNOVAR software package. All possible nonameric-peptides encoded by the non-synonymous SNP were then interrogated in-silico for their likelihood to be presented by the HLA class I molecules in individual DRP, using the Immune-Epitope Database (IEDB) SMM algorithm. The IEDB-SMM algorithm predicted a median 18,396 peptides/DRP which bound HLA with an IC50 of <500nM, and 2254 peptides/DRP with an IC50 of <50nM. Unrelated donors generally had higher numbers of peptides presented by the HLA. A similarly large library of presented peptides was identified when the data was interrogated using the Net MHCPan algorithm. These peptides were uniformly distributed in the various organ systems. The bioinformatic algorithm presented here demonstrates that there may be a high level of minor histocompatibility antigen variation in HLA-matched individuals, constituting an HLA-specific alloreactivity potential. These data provide a possible explanation for how relatively minor adjustments in GVHD prophylaxis yield relatively similar outcomes in HLA matched and mismatched SCT recipients.
description: Abstract: 235, Words: 6422, Figures: 7, Tables: 3, Supplementary figures: 2, Supplementary tables: 2
Pricing for local and global WiFi markets
Creators: name: Duan, Lingjie
name: Huang, Jianwei
name: Shou, Biying
Publisher: name: arXiv
Year: 2014
Subjects: subject: Computer Science and Game Theory (cs.GT)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: This paper analyzes two pricing schemes commonly used in WiFi markets: the flat-rate and the usage-based pricing. The flat-rate pricing encourages the maximum usage, while the usage-based pricing can flexibly attract more users especially those with low valuations in mobile Internet access. First, we use theoretical analysis to compare the two schemes and show that for a single provider in a market, as long as the WiFi capacity is abundant, the flat-rate pricing leads to more revenue. Second, we study how a global provider (e.g., Skype) collaborates with this monopolist in each local market to provide a global WiFi service. We formulate {the interactions between the global and local providers as a dynamic game. In Stage I, the global provider bargains with the local provider in each market to determine the global WiFi service price and revenue sharing agreement. In Stage II, local users and travelers choose local or global WiFi services. We analytically show that the global provider prefers to use the usage-based pricing to avoid a severe competition with the local provider. At the equilibrium, the global provider always shares the majority of his revenue with the local provider to incentivize the cooperation. Finally, we analytically study how the interaction changes if the local market has more than one local provider. In this case, the global provider can integrate the coverages of multiple local providers and provide a better service. Compared to the local monopoly case, local market competition enables the global provider to share less revenue with each of the local providers. However, we numerically show that the global provider's revenue could decrease, as he shares his revenue with more providers and can only charge a lower price.
description: 18 pages including appendices
Controllable shifting, steering, and expanding of light beam based on multi-layer liquid-crystal cells
Creators: name: Mur, Urban
name: Ravnik, Miha
name: Seč, David
Publisher: name: arXiv
Year: 2022
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Shaping and steering of light beams is essential in many modern applications, ranging from optical tweezers, camera lenses, vision correction to 3D displays. However, current realisations require increasingly greater tunability and aim for lesser specificity for use in diverse applications. Here, we demonstrate tunable light beam control based on multi-layer liquid-crystal cells and external electric field, capable of extended beam shifting, steering, and expanding, using a combination of theory and full numerical modelling, both for liquid crystal orientations and the transmitted light. Specifically, by exploiting three different function-specific and tunable birefringent nematic layers, we show an effective liquid-crystal beam control device, capable of precise control of outgoing light propagation, with possible application in projectors or automotive headlamps.
title: Les émotions agréables et désagréables ressenties par les élèves
title: une comparaison entre les trois voies du secondaire I dans le canton de Vaud
titleType: Subtitle
Creators: name: Girault, Christelle
name: Pichonnat, Emilie
Publisher: name: Unknown
Year: 0
Subjects: subject: Ecole
subject: Voies
subject: Emotions
subject: Intensité
subject: Cause
subject: Partage

description: Cette recherche s’inscrit dans le cadre de travaux portant sur la problématique des émotions à l’adolescence. Plus précisément, elle se base sur l’étude d’Albanese et Grazzani Gavazzi (2005) portant sur la conscience des émotions positives chez des lycéens du Nord de l’Italie. Nous cherchons à savoir, pour notre part, si l’école peut créer des situations générant des émotions agréables mais également désagréables et si les voies du secondaire I dans le Canton de Vaud ont un impact sur l’expérience de ces émotions. A cet effet, un questionnaire a été distribué à des élèves de deux établissements secondaires vaudois, dont l’âge moyen est de 13,8 ans. Les questions portent sur le degré de satisfaction dans la vie en général, la description d’un évènement engendrant des émotions particulièrement agréables/désagréables, la nature de l’émotion ressentie, son intensité, sa cause, le contexte dans lequel elle a été ressentie, si l’élève était seul ou accompagné, s’il a partagé cette émotion, sur l’utilisation de cette émotion agréable, et sur la stratégie d’atténuation de l’émotion désagréable. Les résultats montrent certaines différences significatives sur l’intensité des émotions, leurs causes et le partage de celles-ci entre les voies. Ces différences se retrouvent au niveau de la moyenne de l’intensité des émotions agréables entre la VSO et les deux autres voies. Les résultats diffèrent également en ce qui concerne la fréquence des causes des émotions désagréables selon les voies ; les causes liées au travail scolaire, à l’aspect relationnel et aux activités extra scolaires ne sont pas mentionnées de manière égale. A propos du partage des émotions agréables, nous avons constaté que la moyenne d’intensité de celles-ci est plus élevée lorsqu’elles sont partagées pour les élèves de VSO et de VSB. De plus, nous avons noté que les élèves de VSG partagent davantage leurs émotions que les élèves de VSO.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
Basic Register of Thesauri, Ontologies & Classification (BARTOC): DFG-Projektantrag
Creators: name: Voß, Jakob
name: Balakrishnan, Uma
Publisher: name: Zenodo
Year: 2023

description: There has been a surge in the number of controlled vocabularies, such as authority files, taxonomies, ontology and their significance as a result of growth in data-driven and information science. This in turn boosts the need for vocabulary services as well as information about vocabularies for the management of research data. The Basic Register of Thesauri, Ontologies & Classification (BARTOC) created a decade ago is the most comprehensive and universal vocabulary index worldwide. There is however a need to expand BARTOC in the light of above developments. Taking note of this need the VZG has planned to revise, update and improve BARTOC both technically and content-wise so as to build BARTOC as a focal point for semantic indexing. The project aims to focus on the following tasks over a project period of 3 years: update and extend information on vocabularies in BARTOC further development of retrieval methods for and in vocabularies and vocabulary registries integration with other vocabulary repositories and research data infrastructures quality management by implementing review and quality analysis procedures support of use, maintenance and management of vocabularies The planned improvement and further development of BARTOC will facilitate the users to discover easily the vocabularies and subject-specific directories, find suitable systems for their applications and access vocabularies uniformly. Integration with repositories not only increases the visibility of vocabularies, but also that of indexed publications and research data. Further, research and documentation institutions will be supported in the use of vocabularies as well as in their maintenance and administration.
Model Checking Cyber-Physical Systems
Creators: name: Driouich, Youssef
Publisher: name: Universita degli studi di Salerno
Year: 2019
Subjects: subject: INF/01 INFORMATICA
subject: Cyber-physical systems
subject: Formal-methods
subject: Automatic verification

description: 2017 - 2018
description: Cyber-Physical Systems (CPSs) are integrations of computation with physical processes. Applications of CPS arguably have the potential to overshadow the 20-th century IT revolution. Nowadays, CPSs application to many sectors like Smart Grids, Transportation, and Health help us run our lives and businesses smoothly, successfully and safely. Since malfunctions in these CPSs can have serious, expensive, sometimes fatal consequences, Simulation-based Veri cation (SBV) tools are vital to minimize the probability of errors occurring during the development process and beyond. Their applicability is supported by the increasingly widespread use of Model Based Design (MBD) tools. MBD enables the simulation of CPS models in order to check for their correct behaviour from the very initial design phase. The disadvantage is that SBV for complex CPSs is an extremely resources and time-consuming process, which typically requires several months of simulation. Current SBV tools are aimed at accelerating the veri cation process with mul- tiple simulators working simultaneously. To this end, they compute all the scenarios in advance in such a way as to split and simulate them in parallel. Nevertheless, there are still limitations that prevent a more widespread adop- tion of SBV tools. To this end, we present a MBD methodology aiming the acausual modeling and veri cation via formal-methods, speci cally the model checking techniques, the system under veri cation (SUV). Our approach relies basically on: Firstly, the analysis of the steady-states of the CPS and the bound- ing technique of the system's state in parallel with the simulation in order to identify the state space of the system simulating it only once, then represent it as a Finite State Machine (FSM). Secondly, exhaustively verify the resulted FSM using a symbolic model checker and express the desired properties in classical temporal logic. The application to a power management system is presented as a case study. [edited by Author]
Contribution of stripped nuclear clusters to globular cluster and ultra-compact dwarf galaxy populations
Creators: name: Pfeffer, Joel
name: Griffen, Brendan F.
name: Baumgardt, Holger
name: Hilker, Michael
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use the Millennium II cosmological simulation combined with the semi-analytic galaxy formation model of Guo et al. (2011) to predict the contribution of galactic nuclei formed by the tidal stripping of nucleated dwarf galaxies to globular cluster (GC) and ultra-compact dwarf galaxy (UCD) populations of galaxies. We follow the merger trees of galaxies in clusters back in time and determine the absolute number and stellar masses of disrupted galaxies. We assume that at all times nuclei have a distribution in nucleus-to-galaxy mass and nucleation fraction of galaxies similar to that observed in the present day universe. Our results show stripped nuclei follow a mass function $N(M) \sim M^{-1.5}$ in the mass range $10^6 < M/M_\odot < 10^8$, significantly flatter than found for globular clusters. The contribution of stripped nuclei will therefore be most important among high-mass GCs and UCDs. For the Milky Way we predict between 1 and 3 star clusters more massive than $10^5 M_\odot$ come from tidally disrupted dwarf galaxies, with the most massive cluster formed having a typical mass of a few times $10^6 M_\odot$, like omega Centauri. For a galaxy cluster with a mass $7 \times 10^{13} M_\odot$, similar to Fornax, we predict $\sim$19 UCDs more massive than $2\times10^6 M_\odot$ and $\sim$9 UCDs more massive than $10^7 M_\odot$ within a projected distance of 300 kpc come from tidally stripped dwarf galaxies. The observed number of UCDs are $\sim$200 and 23, respectively. We conclude that most UCDs in galaxy clusters are probably simply the high mass end of the GC mass function.
description: 15 pages, 9 figures, accepted for publication in MNRAS
Additional file 1 of Augmented renal clearance in the ICU: estimation, incidence, risk factors and consequences—a retrospective observational study
Creators: name: Egea, Alexandre
name: Dupuis, Claire
name: de Montmollin, Etienne
name: Wicky, Paul-Henry
name: Patrier, Juliette
name: Jaquet, Pierre
name: Lefèvre, Lucie
name: Sinnah, Fabrice
name: Marzouk, Mehdi
name: Sonneville, Romain
name: Bouadma, Lila
name: Souweine, Bertrand
name: Timsit, Jean-François
Publisher: name: figshare
Year: 2022
Subjects: subject: Medicine
subject: Pharmacology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Additional tables and figures.
Modeling crosstalk and afterpulsing in silicon photomultipliers
Creators: name: Rosado, Jaime
name: Aranda, Víctor Manuel
name: Blanco, Francisco
name: Arqueros, Fernando
Publisher: name: arXiv
Year: 2014
Subjects: subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: An experimental method to characterize the crosstalk and afterpulsing in silicon photomultipliers has been developed and applied to two detectors fabricated by Hamamatsu. An analytical model of optical crosstalk that we presented in a previous publication has been compared with new measurements, confirming our results. Progresses on a statistical model to describe afterpulsing and delayed crosstalk are also shown and compared with preliminary experimental data.
description: 11 pages, 5 figures, New Developments in Photodetection, June 30th to July 4th, Tours, France
La pédagogie du contrat a-t-elle un effet sur la discipline ?
Creators: name: Nicollier, Jean-Marc
name: Grivel, Olivier
Publisher: name: Unknown
Year: 0
Subjects: subject: Règles
subject: pédagogie
subject: contrat
subject: autonomie
subject: cadre
subject: responsabilisation

description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
Fire performance of Tapered Concrete-Filled Steel Tubular Columns Protected by Intumescent Fire Coating
Creators: name: Wang, Jian
name: Song, Qian-Yi
Publisher: name: figshare
Year: 2023
Subjects: Structural engineering
Fire safety engineering

description: Tapered concrete-filled steel tubular (CFST) columns have been used in various structures due to their aesthetic appearance and excellent structural behaviour. However, the research on their fire performance is still insufficient at this stage. In this paper, fire tests of three tapered CFST columns under eccentric load are carried out, and all specimens are protected by intumescent fire coating (IFC). The test results show that the IFC and tapered CSFT specimen can reliably work together under fire. Under remarkable heat insulation effects of the IFC, the fire rating of the tapered CFST specimen can exceed 180min, even if the load ratio is up to 0.56. A verified finite element analysis (FEA) model to predict the fire performance of CFST tapered column was established, taking into account the passive confinement effect of steel tube on the infilled concrete. Combined with typical cases, the influence of tapered angle and slenderness ratio on the fire performance of tapered CFST column was discussed.
title: Le flag football
title: un sport adapté à l'éducation physique
titleType: Subtitle
Creators: name: Joye, Fabien
name: Borlat, Nicolas
Publisher: name: Unknown
Year: 0
Subjects: subject: Education physique
subject: flag football
subject: football américain
subject: motivation
subject: règles de jeu
subject: sport sans contact

description: Ce travail porte sur un sport méconnu, le flag football. Il s’agit d’un sport collectif dont les règles sont issues du football américain, mais interdisant le jeu au pied ainsi que tout contact. Il a été inventé par des professeurs d’éducation physique vers 1920 aux États-Unis afin de créer une activité physique pour tous, moins violente et risquée que le football américain et donc plus appropriée aux écoles. Le but de ce mémoire est de démontrer que les élèves vont globalement apprécier sa pratique et que son application est particulièrement bien adaptée au milieu scolaire. Pour ce faire une recherche théorique a tout d’abord été entreprise. Les résultats obtenus montrent que le flag football et ses caractéristiques spécifiques sont en parfaite adéquation avec les exigences des cours d’éducation physique et que ce sport permet de développer un grand nombre de compétences requises par le plan d’étude vaudois. Ces résultats théoriques encourageants sont ensuite confrontés à des résultats issus d’un essai pratique. L’objectif est d’observer directement sur le terrain si ce sport a sa place dans le choix des activités proposées par les professeurs d’éducation physique. Trois méthodes complémentaires sont ainsi utilisées : l’observation des trois séances, l’analyse de deux questionnaires dispensés aux élèves et d’un distribué à des enseignants. Les résultats généraux révèlent que les élèves ont eu beaucoup de plaisir durant cet essai mais ne désirent pas poursuivre la pratique de ce sport. Ils ont particulièrement apprécié son aspect collectif, mixte et stratégique au contraire de son absence de contacts. L’opinion des filles a été dans bien des cas comparable à celle des garçons. Ce sport est cependant peu connu et peu pratiqué par les élèves et leur maîtres d’éducation physique. Les différents résultats obtenus valident ainsi l’hypothèse principale de ce travail. Ces derniers sont toutefois à relativiser car ils possèdent de nombreuses limites.
description: Mémoire professionnel, Master en enseignement pour le degré secondaire I
TMDs: Evolution, modeling, precision
Creators: name: D'Alesio, Umberto
name: Echevarría, Miguel G.
name: Melis, Stefano
name: Scimemi, Ignazio
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The factorization theorem for $q_T$ spectra in Drell-Yan processes, boson production and semi-inclusive deep inelastic scattering allows for the determination of the non-perturbative parts of transverse momentum dependent parton distribution functions. Here we discuss the fit of Drell-Yan and $Z$-production data using the transverse momentum dependent formalism and the resummation of the evolution kernel. We find a good theoretical stability of the results and a final $χ^2/{\rm points}\lesssim 1$. We show how the fixing of the non-perturbative pieces of the evolution can be used to make predictions at present and future colliders.
description: 6 pages, 3 pdf figures, uses webofc.cls. Invited talk delivered by I. Scimemi at the Fourth International Workshop on "Transverse Polarisation Phenomena in Hard Processes" (Transversity 2014), Chia, Cagliari, Italy, June 9-13, 2014. To appear in EPJ Web of Conferences
Linear programming bounds in classical association schemes
Creators: name: Weiß, Charlene
Publisher: name: Universität Paderborn
Year: 2023

description: Digitale Kommunikation beruht in hohem Maße auf der Verwendung verschiedener Arten von Codes. Heutzutage wichtige Codes sind Rang-Metrik-Codes und Unterraumcodes - die q-Analoga von binären Codes und binären Codes mit konstantem Gewicht. All diese Codes können als Teilmengen klassischer Assoziationsschemata betrachtet werden. Ein zentrales codierungstheoretisches Problem besteht darin, obere Schranken für die Größe von Codes zu geben. Diese Arbeit untersucht Delsartes mächtiges lineares Optimierungsproblem, dessen Optimum genau eine solche Schranke für Codes in Assoziationsschemata ist. Die linearen Optimierungsprobleme für binäre Codes und binäre Codes mit konstantem Gewicht wurden seit den 1970er Jahren ausgiebig untersucht, aber ihr Optimum ist noch unbekannt. Wir bestimmen auf einheitliche Weise das Optimum des linearen Optimierungsproblems in verschiedenen gewöhnlichen q-Analoga sowie in deren affinen Pendants. Insbesondere werden Schranken und Konstruktionen für Codes in Polarräumen hergeleitet, wobei die Schranken in mehreren Fällen bis auf einen konstanten Faktor optimal sind. Darüber hinaus wird auf der Grundlage dieser Resultate eine fast vollständige Klassifizierung von Steiner-Systemen in Polarräumen gegeben, indem bewiesen wird, dass diese nur in wenigen Spezialfällen existieren könnten.
description: Digital communications relies heavily on the usage of different types of codes. Prominent codes nowadays are rank-metric codes and subspace codesthe q-analogs of binary codes and binary codes with constant weight. All these codes can be viewed as subsets of classical association schemes. A central coding-theoretic problem is to derive upper bounds for the size of codes. This thesis investigates Delsartes powerful linear program whose optimum is precisely such a bound for codes in association schemes. The linear programs for binary codes and binary constant-weight codes have been extensively studied since the 1970s, but their optimum is still unknown. We determine in a unified way the optimum of the linear program in several ordinary q-analogs as well as in their affine counterparts. In particular, bounds and constructions for codes in polar spaces are established, where the bounds are sharp up to a constant factor in many cases. Moreover, based on these results, an almost complete classification of Steiner systems in polar spaces is provided by showing that they could only exist in some corner cases.
Ultrafast time-division demultiplexing of polarization-entangled photons
Creators: name: Donohue, John M.
name: Lavoie, Jonathan
name: Resch, Kevin J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Maximizing the information transmission rate through quantum channels is essential for practical implementation of quantum communication. Time-division multiplexing is an approach for which the ultimate rate requires the ability to manipulate and detect single photons on ultrafast timescales while preserving their quantum correlations. Here we demonstrate the demultiplexing of a train of pulsed single photons using time-to-frequency conversion while preserving their polarization entanglement with a partner photon. Our technique converts a pulse train with 2.69 ps spacing to a frequency comb with 307 GHz spacing which may be resolved using diffraction techniques. Our work enables ultrafast multiplexing of quantum information with commercially available single-photon detectors.
description: 4 pages main body, 2 pages references, 5 pages supplemental material. 4 figures in main body, 2 figures and 2 tables in supplemental material