cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Hubble Space Telescope UV Legacy Survey of Galactic Globular Clusters. I. Overview of the Project and Detection of Multiple Stellar Populations
Creators: name: Piotto, G.
name: Milone, A. P.
name: Bedin, L. R.
name: Anderson, J.
name: King, I. R.
name: Marino, A.
name: Nardiello, D.
name: Aparicio, A.
name: Barbuy, B.
name: Bellini, A.
name: Brown, T. M.
name: Cassisi, S.
name: Cunial, A.
name: Dalessandro, E.
name: D'Antona, F.
name: Ferraro, F. R.
name: Hidalgo, S.
name: Lanzoni, B.
name: Monelli, M.
name: Ortolani, S.
name: Renzini, A.
name: Salaris, M.
name: Sarajedini, A.
name: van der Marel, R. P.
name: Vesperini, E.
name: Zoccali, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: In this paper we describe a new UV-initiative HST project (GO-13297) that will complement the existing F606W and F814W database of the ACS Globular Cluster (GC) Treasury by imaging most of its clusters through UV/blue WFC3/UVIS filters F275W, F336W and F438W. This "magic trio" of filters has shown an uncanny ability to disentangle and characterize multiple-population (MP) patterns in GCs in a way that is exquisitely sensitive to C, N, and O abundance variations. Combination of these passbands with those in the optical also gives the best leverage for measuring helium enrichment. The dozen clusters that had previously been observed in these bands exhibit a bewildering variety of MP patterns, and the new survey will map the full variance of the phenomenon. The ubiquity of multiple stellar generations in GCs has made the formation of these cornerstone objects more intriguing than ever; GC formation and the origin of their MPs have now become one and the same problem. In the present paper we will describe the data base and our data reduction strategy, as well as the uses we intend to make of the final photometry, astrometry, and proper motions. We will also present preliminary color-magnitude diagrams from the data so far collected. These diagrams also draw on data from GO-12605 and GO-12311, which served as a pilot project for the present GO-13297.
description: 56 pages, 23 figures, 1 table, accepted for publication on AJ. The official TREASURY webpage can be found at this url: http://groups.dfa.unipd.it/ESPG/treasury.html
title: Enseigner l'analyse de texte au secondaire II
title: quelles méthodes employer ?
titleType: Subtitle
Creators: name: Neeman, Elsa
Publisher: name: Unknown
Year: 0
Subjects: subject: Littérature française
subject: analyse de texte
subject: comparaison
subject: gestion de classe
subject: conception didactique
subject: Mérimée

description: Ce mémoire professionnel consiste en une réflexion – appuyée par la pratique en classe – surl’enseignement de la littérature au secondaire II. Plus précisément, ce travail s’interroge sur la pratique de l’analyse de texte au gymnase. Il compare deux types principaux d’analyse de texte : l’analyse à partir d’un questionnaire et la « lecture analytique ». Le travail débute par la mise en place d’un cadre théorique portant dans un premier temps sur l’analyse de texte en général puis, dans un second temps, sur La Vénus d’Ille de Prosper Mérimée, nouvelle fantastique parue en 1837, qui a été le texte de référence des séquences réalisées en classe avec les élèves pour ce mémoire. Puis, chacune des deux méthodes sélectionnées pour l’analyse est expliquée, sa réalisation en classe estracontée (de manière factuelle et objective), enfin une analyse est proposée. Cette analyses’intéresse aux résultats obtenus lors de ces séquences en classe, aux points forts et aux pointsfaibles de ces méthodes, à leur efficacité didactique, à leurs modalités pédagogiques et, enfin, à la vision de la littérature et de son enseignement qu’elles véhiculent. Les deux méthodes étudiées sont très différentes, tant dans leur réalisation en classe qu’au niveau de leurs implications didactiques et pédagogiques. Cadre relativement strict ou liberté, travail individuel ou collectif, autonomie de l’élève ou guidage par l’enseignant : telles sont lesoppositions que ces méthodes amènent à constater. Une extension qui porte sur l’analyse detexte présentée oralement (à partir d’un protocole) est ensuite proposée. Le travail commence et s’achève par l’avis des élèves sur l’analyse de texte et les méthodes àdisposition (examen de leurs réponses à un questionnaire à ce sujet). La conclusion propose en outre un bilan comparatif des méthodes, ainsi que des pistes pour prolonger la réflexion.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Two new species of Archeohomaloplia Nikolajev, 1982 from China (Coleoptera: Scarabaeidae: Sericini)
Creators: name: Ahrens, Dirk
Publisher: name: Leibniz Institute for the Analysis of Biodiversity Change - Museum Koenig Bonn
Year: 2023

description: Two new species, Archeohomaloplia xiajuan sp. nov. and Archeohomaloplia volkovitchi sp. nov., are described and illustrated from Yunnan (China). The key to the species of Archeohomaloplia Nikolajev, 1982 is updated and additional new records of the genus are given.
Spin-cobordisms, surgeries and fermionic modular bootstrap
Creators: name: Grigoletto, Andrea
name: Putrov, Pavel
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: Algebraic Topology (math.AT)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider general fermionic quantum field theories with a global finite group symmetry $G$, focusing on the case of 2-dimensions and torus spacetime. The modular transformation properties of the family of partition functions with different backgrounds is determined by the 't Hooft anomaly of $G$ and fermion parity. For a general possibly non-abelian $G$ we provide a method to determine the modular transformations directly from the bulk 3d invertible topological quantum field theory (iTQFT) corresponding to the anomaly by inflow. We also describe a method of evaluating the character map from the real representation ring of $G$ to the group which classifies anomalies. Physically the value of the map is given by the anomaly of free fermions in a given representation. We assume classification of the anomalies/iTQFTs by spin-cobordisms. As a byproduct, for all abelian symmetry groups $G$, we provide explicit combinatorial expressions for corresponding spin-bordism invariants in terms of surgery representation of arbitrary closed spin 3-manifolds. We work out the case of $G=\mathbb{Z}_2$ in detail, and, as an application, we consider the constraints that 't Hooft anomaly puts on the spectrum of the infrared conformal field theory.
description: 86 pages, 27 figures. v2: minor corrections
Multi-Dimensional Data Compression and Query Processing in Array Databases
Creators: name: Kim, Minsoo
name: Lee, Hyubjin
name: Chung, Yon Dohn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences

description: In recent times, the production of multidimensional data in various domains and their storage in array databases has witnessed a sharp increase; this rapid growth in data volumes necessitates compression in array databases. However, existing compression schemes used in array databases are general-purpose and not designed specifically for the databases. They could degrade query performance with complex analytical tasks, which incur huge computing costs. Thus, a compression scheme that considers the workflow of array databases is required. This study presents a compression scheme, SEACOW, for storing and querying multidimensional array data. The scheme is specially designed to be efficient for both dimension-based and value-based exploration. It considers data access patterns for exploration queries and embeds a synopsis, which can be utilized as an index, in the compressed array. In addition, we implement an array storage system, namely MSDB, to perform experiments. We evaluate query performance on real scientific datasets and compared it with those of existing compression schemes. Finally, our experiments demonstrate that SEACOW provides high compression rates compared to existing compression schemes, and the synopsis improves analytical query processing performance.
description: (c) 2022 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works
A Tutorial on Trusted and Untrusted non-3GPP Accesses in 5G Systems -- First Steps Towards a Unified Communications Infrastructure
Creators: name: Lemes, Mario Teixeira
name: Alberti, Antonio Marcos
name: Both, Cristiano Bonato
name: Oliveira, Antonio C. de
name: Cardoso, Kleber Vieira
Publisher: name: arXiv
Year: 2021
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Computer and information sciences

description: Fifth-generation (5G) systems are designed to enable convergent access-agnostic service availability. This means that 5G services will be available over 5G New Radio air interface and also through other non-Third Generation Partnership Project (3GPP) access networks, e.g., IEEE 802.11 (Wi-Fi). 3GPP has recently published the Release 16 that includes trusted non-3GPP access network concept and wireless wireline convergence. The main goal of this tutorial is to present an overview of access to 5G core via non-3GPP access networks specified by 3GPP until Release 16 (i.e., untrusted, trusted, and wireline access). The tutorial describes aspects of the convergence of a 5G system and these non-3GPP access networks, such as the authentication and authorization procedures and the data session establishment from the point of view of protocol stack and exchanged messages between the network functions. In order to illustrate several concepts and part of 3GPP specification, we present a basic but fully operational implementation of untrusted non-3GPP access using WLAN. We perform experiments that demonstrate how a Wi-Fi user is authorized in a 5G core and establishes user plane connectivity to a data network. Moreover, we evaluate the performance of this access in terms of time consumed, number of messages, and protocol overhead to established data sessions.
description: 22 pages, 22 figures
Stellar oscillations in Eddington-inspired Born-Infeld gravity
Creators: name: Sotani, Hajime
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We consider the stellar oscillations of relativistic stars in the Eddington-inspired Born-Infeld gravity (EiBI). In order to examine the specific frequencies, we derive the perturbation equations governing the stellar oscillations in EiBI by linearizing the field equations, and numerically determine the oscillation frequencies as changing the coupling parameter in EiBI, $κ$, and stellar models. As a result, we find that the frequencies depend strongly on the value of $κ$, where the frequencies in EiBI with negative $κ$ become higher and those with positive $κ$ become lower than the expectations in general relativity. We also find that, via the observation of the fundamental frequency, one could distinguish EiBI with $8πε_0|κ|\gtrsim 0.03$ from general relativity, independently of the equation of state (EOS) for neutron star matter, where $ε_0$ denotes the nuclear saturation density and $ε_0κ$ become dimensionless parameter. With the further constraints on EOS, one might distinguish EiBI even with $8πε_0|κ|\lesssim 0.03$ from general relativity.
description: accepted for publication in PRD
Pourquoi et comment intégrer les apports des études genre dans l'enseignement du français au gymnase ?
Creators: name: Evans, Nadège
Publisher: name: Unknown
Year: 0
Subjects: subject: Français
subject: Études genre
subject: Féminisation
subject: Écrivaines
subject: Stéréotypes sexistes
subject: Normes
subject: Inclusion

description: De nombreuses études montrent que l’école mixte tend à renforcer les stéréotypes sexistes plutôt qu’à les faire disparaître. Or ces derniers sont responsables de nombreuses inégalités entre femmes et hommes : les choix professionnels restreints des femmes et les différences de salaire qui en découlent ainsi que la division sexuelle du travail, mais aussi les violences psychologiques et physiques envers les femmes, celles-ci étant en permanence soumises à des injonctions en matière de normes physiques mais aussi de comportements à adopter (jolies, douces, calmes, émotionnelles, etc.). Des injonctions opposées existent pour les hommes (forts, pourvoyeurs financiers, ne pas exprimer ses sentiments, rationnels, etc.) mais elles n’ont pas les mêmes conséquences puisque les « valeurs » ou « qualités » dites masculines sont valorisées contrairement à celles dites féminines. Outre les inégalités entre femmes et hommes, ces stéréotypes ont également pour effet la discrimination des personnes ne correspondant pas aux normes édictées par ceux-ci. Dans une perspective inclusive et égalitaire de l’enseignement, il me paraît donc important de déconstruire ces stéréotypes, afin que chacun-e puisse se sentir à l’aise dans le cadre scolaire afin d’acquérir des compétences et de réaliser des apprentissages qui lui seront utiles durant toute la vie. Cette démarche se veut en outre bien plus ambitieuse, puisqu’elle espère contribuer ainsi, petit à petit, à changer les représentations sur lesquelles est basée notre société. Ce mémoire professionnel, après avoir évoqué brièvement les raisons pour lesquelles ces aspects liés aux apports des études genre doivent être intégrés dans l’enseignement du français, s’interroge sur les pratiques actuelles au travers d’une enquête réalisée au gymnase de Nyon et sur les moyens de mettre en oeuvre un tel enseignement. Quatre pistes, dans l’enseignement du français, sont ici privilégiées : la féminisation du langage, la déconstruction des stéréotypes, la place des écrivaines et celle des héroïnes.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Characterization of Molecular Outflows in The Substellar Domain
Creators: name: Phan-Bao, Ngoc
name: Lee, Chin-Fei
name: Ho, Paul T. P.
name: Dang-Duc, Cuong
name: Li, Di
Publisher: name: arXiv
Year: 2014
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report here our latest search for molecular outflows from young brown dwarfs and very low-mass stars in nearby star-forming regions. We have observed three sources in Taurus with the Submillimeter Array and the Combined Array for Research in Millimeter-wave Astronomy at 230 GHz frequency to search for CO J=2-1 outflows. We obtain a tentative detection of a redshifted and extended gas lobe at about 10 arcsec from the source GM Tau, a young brown dwarf in Taurus with an estimated mass of 73 M_J, which is right below the hydrogen-burning limit. No blueshifted emission around the brown dwarf position is detected. The redshifted gas lobe that is elongated in the northeast direction suggests a possible bipolar outflow from the source with a position angle of about 36 degrees. Assuming that the redshifted emission is outflow emission from GM Tau, we then estimate a molecular outflow mass in the range from 1.9x10^-6 M_Sun to 2.9x10^-5 M_Sun and an outflow mass-loss rate from 2.7x10^-9 M_Sun yr^-1 to 4.1x10^-8 M_Sun yr^-1. These values are comparable to those we have observed in the young brown dwarf ISO-Oph 102 of 60 M_J in rho Ophiuchi and the very low-mass star MHO 5 of 90 M_J in Taurus. Our results suggest that the outflow process in very low-mass objects is episodic with duration of a few thousand years and the outflow rate of active episodes does not significantly change for different stages of the formation process of very low-mass objects. This may provide us with important implications that clarify the formation process of brown dwarfs.
description: 12 pages, 3 figures, 3 tables, accepted for publication in ApJ
Diffeomorphisms of odd-dimensional discs, glued into a manifold
Creators: name: Ebert, Johannes
Publisher: name: arXiv
Year: 2021
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics

description: For a compact $(2n+1)$-dimensional smooth manifold, let $μ_M : B Diff_\partial (D^{2n+1}) \to B Diff (M)$ be the map that is defined by extending diffeomorphisms on an embedded disc by the identity. By a classical result of Farrell and Hsiang, the rational homotopy groups and the rational homology of $ B Diff_\partial (D^{2n+1})$ are known in the concordance stable range. We prove two results on the behaviour of the map $μ_M$ in the concordance stable range. Firstly, it is \emph{injective} on rational homotopy groups, and secondly, it is \emph{trivial} on rational homology, if $M$ contains sufficiently many embedded copies of $S^n\times S^{n+1} \setminus int(D^{2n+1})$. The homotopical statement is probably not new and follows from the theory of smooth torsion invariants. The homological statement relies on work by Botvinnik and Perlmutter on diffeomorphism of odd-dimensional manifolds.
description: Major revision and added results. Final version, to appear in Algebraic and Geometric Topology
C-P-T Fractionalization
Creators: name: Wang, Juven
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: High Energy Physics - Lattice (hep-lat)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Discrete spacetime symmetries of parity P or reflection R, and time-reversal T, act naively as $\mathbb{Z}_2$-involutions in the passive transformation on the spacetime coordinates; but together with a charge conjugation C, the total C-P-R-T symmetries have enriched active transformations on fields in representations of the spacetime-internal symmetry groups of quantum field theories (QFTs). In this work, we derive that these symmetries can be further fractionalized, especially in the presence of the fermion parity $(-1)^{\rm F}$. We elaborate on examples including relativistic Lorentz invariant QFTs (e.g., spin-1/2 Dirac or Majorana spinor fermion theories) and nonrelativistic quantum many-body systems (involving Majorana zero modes), and comment on applications to spin-1 Maxwell electromagnetism (QED) or interacting Yang-Mills (QCD) gauge theories. We discover various C-P-R-T-$(-1)^{\rm F}$ group structures, e.g., Dirac spinor is in a projective representation of $\mathbb{Z}_2^{\rm C}\times \mathbb{Z}_2^{\rm P} \times \mathbb{Z}_2^{\rm T}$ but in an (anti)linear representation of an order-16 nonabelian finite group, as the central product between an order-8 dihedral (generated by C and P) or quaternion group and an order-4 group generated by T with T$^2=(-1)^{\rm F}$. The general theme may be coined as C-P-T or C-R-T fractionalization.
description: 8 pages. Heredity of setups: Spinor theories follow any standard QFT textbook. The 0+1d Majorana zero modes analysis follows arXiv:2011.13921, arXiv:2011.12320. Special thanks to Shing-Tung Yau on "Can C-P-T symmetries be fractionalized more than involutions?" v4: refinement
Data Mining for Gravitationally Lensed Quasars
Creators: name: Agnello, Adriano
name: Kelly, Brandon C.
name: Treu, Tommaso
name: Marshall, Philip J.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Gravitationally lensed (GL) quasars are brighter than their unlensed counterparts and produce images with distinctive morphological signatures. Past searches and target selection algorithms, in particular the Sloan Quasar Lens Search (SQLS), have relied on basic morphological criteria, which were applied to samples of bright, spectroscopically confirmed quasars. The SQLS techniques are not sufficient for searching into new surveys (e.g. DES, PS1, LSST), because spectroscopic information is not readily available and the large data volume requires higher purity in target/candidate selection. We carry out a systematic exploration of machine learning techniques and demonstrate that a two step strategy can be highly effective. In the first step we use catalog-level information ($griz$+WISE magnitudes, second moments) to preselect targets, using artificial neural networks. The accepted targets are then inspected with pixel-by-pixel pattern recognition algorithms (Gradient-Boosted Trees), to form a final set of candidates. The results from this procedure can be used to further refine the simpler SQLS algorithms, with a twofold (or threefold) gain in purity and the same (or $80\%$) completeness at target-selection stage, or a purity of $70\%$ and a completeness of $60\%$ after the candidate-selection step. Simpler photometric searches in $griz$+WISE based on colour cuts would provide samples with $7\%$ purity or less. Our technique is extremely fast, as a list of candidates can be obtained from a stage III experiment (e.g. DES catalog/database) in {a few} CPU hours. The techniques are easily extendable to Stage IV experiments like LSST with the addition of time domain information.
description: MNRAS submitted, positive report received; u-band selection to be added in new version; 19 pages, 10 figures
D'un moyen pour l'enseignement du rythme en école de maturité
Creators: name: Yersin, Laure-Anne
name: Haller, Timothée
Publisher: name: Unknown
Year: 0
Subjects: subject: Rythme
subject: Gymnas
subject: Body-percussions
subject: Percussions corporelles
subject: Méthode
subject: École de maturité

description: Destiné aux enseignants de musique, ce dossier présente une réflexion autour des moyens possibles pour l’enseignement du rythme, ainsi qu’une proposition de démarche en lien avec cet enseignement. Puisant ses racines dans les percussions corporelles, la démarche en question est accompagnée d’une proposition de support écrit et de suggestions d’exercice permettant de travailler indépendamment la réalisation et l’écriture de séquences rythmiques simples. La première partie de ce travail est constituée d’une présentation de diverses approches pédagogiques de l’enseignement du rythme et propose une synthèse de ces approches tout en en faisant émerger les concepts utiles à l’appropriation du rythme. Elle traite également de différents concepts musicaux et psychomoteurs indissociables de la pratique du rythme et présente par là les éléments auxquels l’on se doit d’être attentif dans ce type d’apprentissage. Y sont traités les concepts de pulsation, de coordination, de dissociation et de ressenti. La deuxième partie s’attache quant à elle à la présentation de la démarche susmentionnée. Construite dans une conception progressive des apprentissages liés au rythme, elle ne s’attarde pas sur les considérations théoriques de l’étude de la musique, mais uniquement sur le modèle qu’elle propose. Elle présente un certain nombre d’exercices dont le but n’est pas de fournir au praticien une méthode, mais un moyen de mener un groupe d’individus vers une appropriation complète de certains concepts liés au rythme, tout en laissant la place à de nombreuses régulations et adaptations liées à l’hétérogénéité du groupe en question. Le support proposé dans cette démarche a été pensé pour être modulable et modifié selon les besoins et envies de son utilisateur. Ce dossier est donc une proposition d’outil utile à l’apprentissage du rythme et tenant compte de certains aspects cruciaux de celui-ci.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Context-aware knowledge extraction for UV scene understanding
Creators: name: Cavaliere, Danilo
Publisher: name: Universita degli studi di Salerno
Year: 2020
Subjects: subject: ING-INF/01 ELETTRONICA
subject: UV scene
subject: Comprehension

description: 2018 - 2019
description: In the surveillance systems, Unmanned Vehicle (UV) scene inter- pretation is a non-trivial problem, because UVs need to possess human-like common-sense knowledge to correctly interpret events and situations occurring in the monitored environment. Mobile camera-related issues, such as motion blur, can further complicate scene interpretation, causing a lack of reference points that bad- ly a ects the interpretation of scene entities and situations. To this purpose, this thesis investigates the synergistic combination of video tracking with Semantic Web technologies to enhance UVs at the interpretation of dynamic scenarios. The rst part of the thesis provides a survey conducted on the methods employed to extract knowledge from the acquired structured and unstructured data. When dealing with unstruc- tured data, there is the need to de ne and process contextual data to extract high-level concepts from text. To this purpose, an approach is introduced to mine concepts from texts by building layered contextual knowledge on document terms exploiting a geo- metrical structure, called Simplicial Complex. Then, the focus switches to the knowledge extraction from multimedia data, and more speci cally, video data. To this purpose, an ontology-based approach is presented to represent the video scene as composed of mobile (i.e., people, vehicles) and xed entities (i.e., environ- mental sites and features), along with the spatio/temporal rela- tions among them. The use of the ontology reasoning can support alerting event detection... [edited by Author]
description: I veicoli autonomi (Unmanned Vehicles o UVs) vengono sempre pi u usati per monitorare un ambiente nell'ambito dei sistemi di sorveglianza. Per il monitoraggio automatico, gli UV necessitano di comprendere cosa accade nella scena. Tale compito non e bana- le in quanto richiede macchine in grado di ragionare come essere umani per interpretare eventi e situazioni. Inoltre, siccome tali vecioli impiegano telecamere per il monitoraggio della scena, sono soggetti a problemi legati al video, come lo sfocamento (motion blur), che mina un corretto rilevamento degli oggetti della scena e fa perdere punti di riferimento complicando l'interpretazione di eventi e situazioni. Di conseguenza, l'obiettivo di questa tesi e analizzare l'impiego sinergistico della Computer Vision con le tec- nologie del Web Semantico per astrarre conoscenza dai dati video e supportare l'interpretazione di scenari dinamici... [a cura dell'Autore]
Comment (re)découvrir un conte classique à l'aide de l'analyse textuelle ?
Creators: name: Palermo, Nicole
Publisher: name: Unknown
Year: 0
Subjects: subject: Analyse textuelle
subject: Intérêt des élèves
subject: Contes
subject: Cendrillon ou la petite pantoufle de verre
subject: Charles Perrault
subject: Séquence didactique

description: Ce mémoire s’intéresse à la pratique de l’analyse de texte au gymnase. Cet exercice, commun à l’ensemble des classes gymnasiales, constitue l’une des épreuves soumises aux candidats à la Maturité ou au Diplôme de Culture générale. Il est ainsi reconnu comme un exercice fondamental pour certifier les compétences des élèves en français. Pourtant, ces derniers trouvent souvent cet exercice fastidieux et dénué de sens. Le présent travail s’est donné pour but d’amener des élèves de première année à considérer l’analyse de texte comme un outil pour creuser le texte et en faire émerger les effets de sens. Afin de montrer l’utilité d’une démarche analytique, une histoire connue par la plupart des élèves, leur a été proposée. Aussi, partant de leurs connaissances et de leurs représentations de contes mettant en scène des Cendrillons, ils ont découvert, à travers une séquence de 8 périodes, la version de Charles Perrault, Cendrillon ou la petite pantoufle de verre.
description: Mémoire professionnel, Diplôme d'enseignement pour le degré secondaire II
Continual self-training with bootstrapped remixing for speech enhancement
Creators: name: Tzinis, Efthymios
name: Adi, Yossi
name: Ithapu, Vamsi K.
name: Xu, Buye
name: Kumar, Anurag
Publisher: name: arXiv
Year: 2021
Subjects: subject: Sound (cs.SD)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: We propose RemixIT, a simple and novel self-supervised training method for speech enhancement. The proposed method is based on a continuously self-training scheme that overcomes limitations from previous studies including assumptions for the in-domain noise distribution and having access to clean target signals. Specifically, a separation teacher model is pre-trained on an out-of-domain dataset and is used to infer estimated target signals for a batch of in-domain mixtures. Next, we bootstrap the mixing process by generating artificial mixtures using permuted estimated clean and noise signals. Finally, the student model is trained using the permuted estimated sources as targets while we periodically update teacher's weights using the latest student model. Our experiments show that RemixIT outperforms several previous state-of-the-art self-supervised methods under multiple speech enhancement tasks. Additionally, RemixIT provides a seamless alternative for semi-supervised and unsupervised domain adaptation for speech enhancement tasks, while being general enough to be applied to any separation task and paired with any separation model.
description: To appear in Proc. ICASSP 2022, May 22-27, 2022, Singapore
BMS charges without supertranslation ambiguity
Creators: name: Chen, Po-Ning
name: Wang, Mu-Tao
name: Wang, Ye-Kai
name: Yau, Shing-Tung
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The asymptotic symmetry of an isolated gravitating system, or the Bondi-Metzner-Sachs (BMS) group, contains an infinite-dimensional subgroup of supertranslations. Despite decades of study, the difficulties with the "supertranslation ambiguity" persisted in making sense of fundamental notions such as the angular momentum carried away by gravitational radiation. The issues of angular momentum and center of mass were resolved by the authors recently. In this paper, we address the issues for conserved charges with respect to both the classical BMS algebra and the extended BMS algebra. In particular, supertranslation ambiguity of the classical charge for the BMS algebra, as well as the extended BMS algebra, is completely identified. We then propose a new invariant charge by adding correction terms to the classical charge. With the presence of these correction terms, the new invariant charge is then shown to be free from any supertranslation ambiguity. Finally, we prove that both the classical and invariant charges for the extended BMS algebra are invariant under the boost transformations.
description: 41 pages
Evaluación de variables hemodinámica en bloqueo espinal con o sin co-carga de cristaloides en cesáreas en Tijuana /
Creators: name: Mora Santillana, Maricé
Publisher: name: Universidad Autónoma de Baja California, Mexicali.
Year: 2023
Subjects: subject: Anestesia en obstetricia||Complicaciones||Tijuana, Baja California||Tesis y disertaciones académicas||lemb
subject: RG732 M67 2022

description: La hipotensión inducida por anestesia espinal (HIAE) es común durante la anestesia en cesáreas, que puede alterar el bienestar materno fetal. Estudios previos se han realizado para reducir el riesgo de HIAE con el uso de cristaloides como co-carga durante el bloqueo. El propósito de este estudio es valorar si existen diferencias hemodinámicas con o sin co-precarga durante al bloqueo espinal
Alternativas de financiamiento para la creación y desarrollo de MIPYMES /
Creators: name: Castro Inzunza, Jesús Antonio
Publisher: name: Universidad Autónoma de Baja California, Mexicali.
Year: 2023
Subjects: subject: Pequeñas empresas||Finanzas||Tesis y disertaciones||académicas
subject: HG4027.7 C38 2022

description: La apertura de cualquier tipo de empresa en su tamaño y estructura requiere de un sólido capital y patrimonio para financiar su capital de trabajo principalmente durante su etapa de inicio, para que de esta manera pueda dar soporte a toda su operatividad y funciones que le permitan establecer una correcta planeación estratégica en su modelo de negocio. Todo esto implica inversión, por lo cual es indispensable que al establecer un negocio se cuente con la suficiente solidez financiera en la etapa inicial, para proyectar un correcto crecimiento en el mediano y largo plazo. El objetivo fundamental esta investigación es mostrar las fuentes de financiamiento disponibles para una mejor asesoría a las micro, pequeñas y mediana empresas sobre las distintas opciones que existen. Cabe mencionar que en México se estima que casi el 95% de los negocios que abren cierran al año siguiente. Esta investigación es cuantitativa y descriptiva, siendo el diseño de tipo exploratorio, a través de revisión de diversos documentos, de tal forma, de poder establecer alternativas de financiamiento para la creación y desarrollo de micro, pequeñas y mediana empresas para determinar su desarrollo y crecimiento empresarial. Además, se aplicó una encuesta a 30 microempresarios para analizar sus fuentes de financiamiento.
SoftHebb: Bayesian Inference in Unsupervised Hebbian Soft Winner-Take-All Networks
Creators: name: Moraitis, Timoleon
name: Toichkin, Dmitry
name: Journé, Adrien
name: Chua, Yansong
name: Guo, Qinghai
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Artificial Intelligence (cs.AI)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Neural and Evolutionary Computing (cs.NE)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: Hebbian plasticity in winner-take-all (WTA) networks is highly attractive for neuromorphic on-chip learning, owing to its efficient, local, unsupervised, and on-line nature. Moreover, its biological plausibility may help overcome important limitations of artificial algorithms, such as their susceptibility to adversarial attacks, and their high demands for training-example quantity and repetition. However, Hebbian WTA learning has found little use in machine learning (ML), likely because it has been missing an optimization theory compatible with deep learning (DL). Here we show rigorously that WTA networks constructed by standard DL elements, combined with a Hebbian-like plasticity that we derive, maintain a Bayesian generative model of the data. Importantly, without any supervision, our algorithm, SoftHebb, minimizes cross-entropy, i.e. a common loss function in supervised DL. We show this theoretically and in practice. The key is a "soft" WTA where there is no absolute "hard" winner neuron. Strikingly, in shallow-network comparisons with backpropagation (BP), SoftHebb shows advantages beyond its Hebbian efficiency. Namely, it converges in fewer iterations, and is significantly more robust to noise and adversarial attacks. Notably, attacks that maximally confuse SoftHebb are also confusing to the human eye, potentially linking human perceptual robustness, with Hebbian WTA circuits of cortex. Finally, SoftHebb can generate synthetic objects as interpolations of real object classes. All in all, Hebbian efficiency, theoretical underpinning, cross-entropy-minimization, and surprising empirical advantages, suggest that SoftHebb may inspire highly neuromorphic and radically different, but practical and advantageous learning algorithms and hardware accelerators.
Tunable strongly interacting dipolar excitons in hybrid perovskites
Creators: name: Baghdasaryan, D. A.
name: Hakobyan, E. S.
name: Hayrapetyan, D. B.
name: Iorsh, I. V.
name: Shelykh, I. A.
name: Shahnazaryan, V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study theoretically the excitonic nonlinearity in hybrid organic-inorganic Ruddlesden-Popper perovskite thin films. The composite layered structure of these materials allows for flexible modulation of their excitonic response between the limiting cases of single atomic layer and wide quasi-two-dimensional quantum well. In particular, we demonstrate that transverse electric field leads to the spatial separation of charge carriers within the inorganic layer, giving rise to strongly interacting excitons possessing built-in dipole moment. Combined with exciton binding energy of the order of hundreds of meVs, this makes hybrid perovskites an optimal platform for tailoring of nonlinear optical response at reduced dimensionality.
Virologische Analysen in der Influenzasaison 2019/20
Creators: name: Wedde, Marianne
name: Duwe, Susanne
name: Biere, Barbara
name: Köndgen, Sophie
name: Reiche, Janine
name: Oh, Dschin-Je
name: Dürrwald, Ralf
Publisher: name: Robert Koch-Institut
Year: 2020
Subjects: subject: Influenza
subject: respiratiorische Viren
subject: SARS-CoV-2
subject: NRZ
subject: Typisierung
subject: 610 Medizin und Gesundheit

description: Die hier vorgestellten Ergebnisse des Nationalen Referenzzentrums für Influenzaviren umfassen Daten zu innerhalb des Sentinels der AGI isolierten Viren und von Viren, die im Rahmen von Ausbrüchen, der Untersuchung schwerer Erkrankungsfälle und von Typisierungsanfragen oder Projekten untersucht wurden sowie von Isolaten aus Einsendungen von Instituten und Gesundheitsämtern. Untersuchungen zur weiterführenden Charakterisierung von RSV und weiteren respiratorischen Viren wurden darüber hinaus bei einer Subpopulation der Sentinelproben vom Konsiliarlabor für RSV, PIV und HMPV durchgeführt. Ab der 9. KW 2020 wurden Untersuchungen auf SARS-CoV-2 integriert.
Batalin--Vilkovisky quantization and supersymmetric twists
Creators: name: Safronov, Pavel
name: Williams, Brian R.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mathematical Physics (math-ph)
subject: Algebraic Geometry (math.AG)
subject: Symplectic Geometry (math.SG)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We show that a family of topological twists of a supersymmetric mechanics with a Kähler target exhibits a Batalin--Vilkovisky quantization. Using this observation we make a general proposal for the Hilbert space of states after a topological twist in terms of the cohomology of a certain perverse sheaf. We give several examples of the resulting Hilbert spaces including the categorified Donaldson--Thomas invariants, Haydys--Witten theory and the 3-dimensional A-model.
Rendere visibile l’invisibile: disabilità e sviluppo sostenibile tra indicatori e stereotipi
Creators: name: Greco, Francesca
Publisher: name: Universita' degli Studi di Salerno
Year: 2020
Subjects: Disability
SDGs
Stigma
Emotinal text mining

description: The Convention for the Rights of Persons with Disabilities and 2030 Agenda for Sustaina-ble Development are the sign of a paradigm shift in addressing the exclusion and margina-lization of people with disabilities. People with disability have to assume an active role in planning the changes of their own future. The availability of good quality comprehensive disability data is essential to plan governments policies and practices aimed at promoting equal opportunities and inclusion rights. They also help to identifying, measuring and monitoring policies’ effectiveness and the progress towards the SDGs. Among the causes of disability exclusion, prejudice and stigma prevail, which can take on multiple overlap-ping and transversal forms. They touch on every aspect of people with disabilities’ lives and it is challenging to directly measure them. As shown by the literature, official statistics and surveys are the mostly used tools to measure the objective elements of discrimination. Nonetheless, the subjective elements are probably the most relevant and pernicious ones as they are difficult to measure. This study shows some examples of measurable objective dis-crimination and propose a text mining method, Emotional Text mining (ETM), to overcome the difficulties in measuring the stereotypes and stigma that underlie discrimination.
An oscillator driven by algebraically decorrelating noise
Creators: name: Gomez, Christophe
name: Iyer, Gautam
name: Le, Hai
name: Novikov, Alexei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 60H10, 37H05 (Primary) 60F05, 60G15 (Secondary)

description: We consider a stochastically forced nonlinear oscillator driven by a stationary Gaussian noise that has an algebraically decaying covariance function. It is well known that such noise processes can be renormalized to converge to fractional Brownian motion, a process that has memory. In contrast, we show that the renormalized limit of the nonlinear oscillator driven by this noise converges to diffusion driven by standard (not fractional) Brownian motion, and thus retains no memory in the scaling limit. The proof is based on the study of a fast-slow system using the perturbed test function method.
description: 62 pages. Added some discussion about multiple vertex case. Accepted to Communications in Mathematical Physics
Modulation Classification via Gibbs Sampling Based on a Latent Dirichlet Bayesian Network
Creators: name: Liu, Yu
name: Simeone, Osvaldo
name: Haimovich, Alexander M.
name: Su, Wei
Publisher: name: arXiv
Year: 2014
Subjects: subject: Information Theory (cs.IT)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: A novel Bayesian modulation classification scheme is proposed for a single-antenna system over frequency-selective fading channels. The method is based on Gibbs sampling as applied to a latent Dirichlet Bayesian network (BN). The use of the proposed latent Dirichlet BN provides a systematic solution to the convergence problem encountered by the conventional Gibbs sampling approach for modulation classification. The method generalizes, and is shown to improve upon, the state of the art.
description: Contains corrections with respect to the version to appear on IEEE Signal Processing Letters (see Fig. 2)
Cars in choches.com (Updated 2020-10-30)
Creators: name: Reynel López Lantigua
name: Ferrer, Jaime Gimeno
Publisher: name: Zenodo
Year: 2020
Subjects: cars, web scraping, uoc

description: Web Scraping result in coches.com web page, only cars from "KM 0" and "Used Cars" are involve in this data set, "New cars " maybe will be treated in futures versions.
Isotropy statistics of CMB hot and cold spots
Creators: name: Khan, Md Ishaque
name: Saha, Rajib
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Statistical Isotropy of the Cosmic Microwave Background (CMB) radiation has been studied and debated extensively in recent years. Under this assumption, the hot spots and cold spots of the CMB are expected to be uniformly distributed over a 2-sphere. We use the orientation matrix, first proposed by Watson (1965) and Scheidegger (1965) and associated shape and strength parameters (Woodcock, 1977) to analyse whether the hot and cold spots of the observed CMB temperature anisotropy field are uniformly placed. We demonstrate the usefulness of our estimators by using simulated toy models containing non-uniform data. We apply our method on several foreground minimized CMB maps observed by WMAP and Planck over large angular scales. The shape and strength parameters constrain geometric features of possible deviations from uniformity (isotropy) and the power of the anomalous signal. We find that distributions of hot or cold spots in cleaned maps show no unusual signature of clustering or girdling. Instead, we notice a strikingly uniform distribution of hot spots over the full sky. The signal remains robust with respect to the four cleaned maps used and presence or absence of the non-Gaussian cold spot (NGCS). On the partial sky with WMAP KQ75 and Planck U73 masks we find anomalously low strength of non-uniformity for cold spots which is found to be robust with respect to various cleaning methods, masks applied, instruments, frequencies, and the presence or absence of the NGCS. Interestingly we find that the signal of anomalously weak non-uniformity could be due to contributions from the quadrupole and octupole and may be related with the low CMB temperature variance anomaly.
description: 25 pages, 11 figures
Star formation relations and CO SLEDs across the J-ladder and redshift
Creators: name: Greve, T. R.
name: Leonidaki, I.
name: Xilouris, E. M.
name: Weiss, A.
name: Zhang, Z. -Y.
name: van der Werf, P.
name: Aalto, S.
name: Armus, L.
name: Diaz-Santos, T.
name: Evans, A. S.
name: Fischer, J.
name: Gao, Y.
name: Gonzalez-Alfonso, E.
name: Harris, A.
name: Henkel, C.
name: Meijerink, R.
name: Naylor, D. A.
name: Smith, H. A.
name: Spaans, M.
name: Stacey, G. J.
name: Veilleux, S.
name: Walter, F.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present FIR-CO luminosity relations ($\log L_{\rm FIR} = α\log L'_{\rm CO} + β$) for the full CO rotational ladder from J=1-0 to J=13-12 for 62 local (z < 0.1) (Ultra) Luminous Infrared Galaxies (LIRGs) using data from Herschel SPIRE-FTS and ground-based telescopes. We extend our sample to high redshifts (z > 1) by including 35 (sub)-millimeter selected dusty star forming galaxies from the literature with robust CO observations. The addition of luminous starbursts at high redshifts enlarge the range of the FIR-CO luminosity relations towards the high-IR-luminosity end while also significantly increasing the small amount of mid-/high-J CO line data available prior to Herschel. This new data-set (both in terms of IR luminosity and J-ladder) reveals linear FIR-CO luminosity relations ($α\sim 1$) for J=1-0 up to J=5-4, with a nearly constant normalisation ($β\sim 2$). This is expected from the (also) linear FIR-(molecular line) relations found for the dense gas tracer lines (HCN and CS), as long as the dense gas mass fraction does not vary strongly within our (merger/starburst)-dominated sample. However from J=6-5 and up to J=13-12 we find an increasingly sub-linear slope and higher normalization constant with increasing J. We argue that these are caused by a warm (~100K) and dense ($>10^4{\rm cm^{-3}}$) gas component whose thermal state is unlikely to be maintained by star formation powered far-UV radiation fields (and thus is no longer directly tied to the star formation rate). We suggest that mechanical heating (e.g., supernova driven turbulence and shocks), and not cosmic rays, is the more likely source of energy for this component. The global CO spectral line energy distributions (SLEDs), which remain highly excited from J=6-5 up to J=13-12, are found to be a generic feature of the (U)LIRGs in our sample, and further support the presence of this gas component.
description: (18 pages, 6 figures. Accepted for publication in ApJ)