cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Hydrodynamic representation of the Klein-Gordon-Einstein equations in the weak field limit: I. General formalism and perturbations analysis
Creators: name: Suárez, Abril
name: Chavanis, Pierre-Henri
Publisher: name: arXiv
Year: 2015
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Using a generalization of the Madelung transformation, we derive the hydrodynamic representation of the Klein-Gordon-Einstein equations in the weak field limit. We consider a complex self-interacting scalar field with a $λ|φ|^4$ potential. We study the evolution of the homogeneous background in the fluid representation and derive the linearized equations describing the evolution of small perturbations in a static and in an expanding universe. We compare the results with simplified models in which the gravitational potential is introduced by hand in the Klein-Gordon equation, and assumed to satisfy a (generalized) Poisson equation. We study the evolution of the perturbations in the matter era using the nonrelativistic limit of our formalism. Perturbations whose wavelength is below the Jeans length oscillate in time while pertubations whose wavelength is above the Jeans length grow linearly with the scale factor as in the cold dark matter model. The growth of perturbations in the scalar field model is substantially faster than in the cold dark matter model. When the wavelength of the pertubations approaches the cosmological horizon (Hubble length), a relativistic treatment is mandatory. In that case, we find that relativistic effects attenuate or even prevent the growth of pertubations. This paper exposes the general formalism and provides illustrations in simple cases. Other applications of our formalism will be considered in companion papers.
description: 29 pages, 11 figures
O tênue trânsito da igualdade na diferença. A força do feminino na evolução das relações de gênero
Creators: name: Silveira Filho, Francisco Maciel
Publisher: name: Forma Breve
Year: 2010

description: O objetivo deste artigo é mapear a forma como as relações de gênero vêm se configurando ao longo dos tempos, em diferentes épocas e culturas, através de múltiplas e eficazes práticas discursivas, estabelecendose suas interfaces com o processo de constituição das identidades de gênero – masculinas, femininas e transgêneras – inscritas na sociedade contemporânea.
description: Forma Breve, n.º 8 (2010): A crónica
Optimisation des propriétés d’usage, de la durabilité et de la qualité environnementale d’un isolant biosourcé pour le bâtiment
Creators: name: Goutiere, Myriam
Publisher: name: Academic Journal of Civil Engineering
Year: 2024

description: La moelle de tournesol est une ressource très répandue dans le Sud-Ouest de la France. Ses propriétés la distinguent d’autres particules végétales, notamment sa structure alvéolaire et sa porosité particulaire très élevée qui lui confèrent un fort potentiel d’isolation thermique, en vrac ou agglomérée en panneaux.

L'influence des procédés de transformation et de purification des tiges de tournesol sur les propriétés d'usage des panneaux isolants est étudiée via l’utilisation de 4 moelles présentant différents taux de pureté et de granulométrie. L'étude est menée sur des fractions de moelle modèles dont la pureté est altérée en ajoutant de l’écorce de tournesol, permettant d’obtenir des masses volumiques en vrac de 40 à 60 kg/m3 au lieu des 22 kg/m3 de la moelle pure. La granulométrie est également contrôlée pour fournir une moelle plus grossière et une moelle fine, de masses volumiques variant de 18 à 25 kg/m3. Cette granulométrie influe peu sur la conductivité thermique contrairement à la présence d’écorce. Les résultats thermiques restent très satisfaisants pour ce type de matériaux (40 à 45 mW/(m.K)). Les performances mécaniques des panneaux contenant de l’écorce ainsi que des grosses particules de moelle sont inférieures à celles des panneaux utilisant la moelle pure de référence ou les petites particules.
description: Academic Journal of Civil Engineering, Vol 42 No 1 (2024): Special Issue - RUGC 2024
Enhancing Transformers with Gradient Boosted Decision Trees for NLI Fine-Tuning
Creators: name: Minixhofer, Benjamin
name: Gritta, Milan
name: Iacobacci, Ignacio
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: Transfer learning has become the dominant paradigm for many natural language processing tasks. In addition to models being pretrained on large datasets, they can be further trained on intermediate (supervised) tasks that are similar to the target task. For small Natural Language Inference (NLI) datasets, language modelling is typically followed by pretraining on a large (labelled) NLI dataset before fine-tuning with each NLI subtask. In this work, we explore Gradient Boosted Decision Trees (GBDTs) as an alternative to the commonly used Multi-Layer Perceptron (MLP) classification head. GBDTs have desirable properties such as good performance on dense, numerical features and are effective where the ratio of the number of samples w.r.t the number of features is low. We then introduce FreeGBDT, a method of fitting a GBDT head on the features computed during fine-tuning to increase performance without additional computation by the neural network. We demonstrate the effectiveness of our method on several NLI datasets using a strong baseline model (RoBERTa-large with MNLI pretraining). The FreeGBDT shows a consistent improvement over the MLP classification head.
description: Findings of ACL 2021
Kato expansion in quantum canonical perturbation theory
Creators: name: Nikolaev, A. S.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: This work establishes a connection between canonical perturbation series in quantum mechanics and a Kato expansion for the resolvent of the Liouville superoperator. Our approach leads to an explicit expression for a generator of a block-diagonalizing Dyson's ordered exponential in arbitrary perturbation order. Unitary intertwining of perturbed and unperturbed averaging superprojectors allows for a description of ambiguities in the generator and block-diagonalized Hamiltonian. We compare the efficiency of the corresponding computational algorithm with the efficiencies of the Van Vleck and Magnus methods for high perturbative orders.
description: 18 pages. Version 2: Additional discussion of the computational algorithms
The first homology group of the mapping class group of a nonorientable surface with twisted coefficients
Creators: name: Stukow, Michał
Publisher: name: arXiv
Year: 2015
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics

description: We determine the first homology group of the mapping class group M(N) of a nonorientable surface N with coefficients in H_1(N;Z).
description: To appear in Topology and its Applications
Additional file 1 of The chest CT features of coronavirus disease 2019 (COVID-19) in China: a meta-analysis of 19 retrospective studies
Creators: name: Haitao Yang
name: Yuzhu Lan
name: Xiujuan Yao
name: Lin, Sheng
name: Baosong Xie
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 1. The exact search string and settings for each database.
Shaft inflation in Randall-Sundrum model
Creators: name: Loc, Ngo Phuc Duc
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Shaft inflation is a model in which the inflaton potential approaches a plateau far from the origin, while it resembles chaotic inflation near the origin. Meanwhile, the Randall-Sundrum type II model (RSII) is an interesting extra-dimensional model to study cosmological phenomenology. In this paper, we study shaft inflation in the RSII model. We find that the predictions are in excellent agreement with observation. The fundamental five-dimensional Planck scale is found to be $M_5\simeq 10^{16}$ GeV, which is consistent with the lower bound $M_5\gtrsim 10^{9}$ GeV obtained from experimental Newtonian gravitational bound. This is an important result that can be used to explore further the implications of extra dimension in other contexts.
description: 14 pages, 5 figures, 2 tables; published version in JCAP
The role of the dissipative and random forces in the calculation of the pressure of simple fluids with dissipative particle dynamics
Creators: name: Goicochea, A. Gama
name: Altamirano, M. A. Balderas
name: Hernández, J. D.
name: Pérez, E.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The role of viscous forces coupled with Brownian forces in momentum conserving computer simulations is studied here in the context of their contribution to the total average pressure of a simple fluid as derived from the virial theorem, in comparison with the contribution of the conservative force to the total pressure. The specific mesoscopic model used is the one known as dissipative particle dynamics, although our conclusions apply to similar models that obey the fluctuation dissipation theorem for short range interactions and have velocity dependent viscous forces. We find that the average contribution of the random and dissipative forces to the pressure is negligible for long simulations, provided these forces are appropriately coupled and when the finite time step used in the integration of the equation of motion is not too small. Finally, we study the properties of the fluid when the random force is made equal to zero and find that the system freezes as a result of the competition of the dissipative and conservative forces.
description: 19 pages, 7 figures. To appear in Computer Physics Communications
Holographic dynamics simulations with a trapped ion quantum computer
Creators: name: Chertkov, Eli
name: Bohnet, Justin
name: Francois, David
name: Gaebler, John
name: Gresh, Dan
name: Hankin, Aaron
name: Lee, Kenny
name: Tobey, Ra'anan
name: Hayes, David
name: Neyenhuis, Brian
name: Stutz, Russell
name: Potter, Andrew C.
name: Foss-Feig, Michael
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Quantum Gases (cond-mat.quant-gas)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Quantum computers have the potential to efficiently simulate the dynamics of many interacting quantum particles, a classically intractable task of central importance to fields ranging from chemistry to high-energy physics. However, precision and memory limitations of existing hardware severely limit the size and complexity of models that can be simulated with conventional methods. Here, we demonstrate and benchmark a new scalable quantum simulation paradigm--holographic quantum dynamics simulation--which uses efficient quantum data compression afforded by quantum tensor networks along with opportunistic mid-circuit measurement and qubit reuse to simulate physical systems that have far more quantum degrees of freedom than can be captured by the available number of qubits. Using a Honeywell trapped ion quantum processor, we simulate the non-integrable (chaotic) dynamics of the self-dual kicked Ising model starting from an entangled state of $32$ spins using at most $9$ trapped ion qubits, obtaining excellent quantitative agreement when benchmarking against dynamics computed directly in the thermodynamic limit via recently developed exact analytical techniques. These results suggest that quantum tensor network methods, together with state-of-the-art quantum processor capabilities, enable a viable path to practical quantum advantage in the near term.
description: 8 pages, 6 figures, 1 table
Additional file 1 of The association between immune-related adverse events and survival outcomes in Asian patients with advanced melanoma receiving anti-PD-1 antibodies
Creators: name: Wu, Chiao-En
name: Chan-Keng Yang
name: Meng-Ting Peng
name: Pei-Wei Huang
name: Ching-Fu Chang
name: Kun-Yun Yeh
name: Chun-Bing Chen
name: Chih-Liang Wang
name: Chao-Wei Hsu
name: Chen, I-Wen
name: Lin, Cheng-Tao
name: Shir-Hwa Ueng
name: Gigin Lin
name: Lin, Yu-Fen
name: Chi-Yuan Cheng
name: Chang, John Wen-Cheng
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 1: Supplementary Figure S1. Progression-free survival (PFS) and overall survival (OS) in melanoma patients receiving anti-PD-1 antibodies. The numbers below the charts correspond to patients at risk at each time point. Supplementary Figure S2. Progression-free survival (PFS) (A, C, E) and overall survival (OS) (B, D, F) in melanoma patients receiving anti-PD-1 antibodies, who had skin (A, B), vitiligo (C, D), and endocrine (E, F) irAEs. The patients experiencing skin/vitiligo (C, p = 0.092) and endocrine (E, p = 0.094) irAEs showed a trend of favorable PFS. The patients experiencing skin (p = 0.054), vitiligo (p = 0.047), and endocrine (p = 0.062) irAEs had a trend of favorable OS. The numbers below the charts correspond to patients at risk at each time point. irAEs, immune-related adverse events.
Modélisation physique et numérique du comportement d'un remblai construit sur un sol liquéfiable soumis à un séisme
Creators: name: Saade, Chedid
Publisher: name: Academic Journal of Civil Engineering
Year: 2024

description: Modélisations physique et numérique sont combinées pour étudier le comportement d'un remblai homogène construit sur un sol liquéfiable, préparé avec la méthode de damage humide. La modélisation physique en centrifugeuse met en évidence directement la réponse du modèle en termes de surpressions interstitielles, accélérations et déplacements. En parallèle, une simulation numérique utilisant la méthode des éléments finis (FEM) a été réalisée avec une loi de comportement avancée, PM4Sand, pour simuler la liquéfaction du sol de fondation. La performance du modèle numérique est ensuite vérifiée par rapport aux résultats des essais en centrifugeuses en termes de surpressions interstitielles, accélérations et déformations.
description: Academic Journal of Civil Engineering, Vol 42 No 1 (2024): Special Issue - RUGC 2024
Networks for the weak topology of Banach and Fréchet spaces
Creators: name: Gabriyelyan, S.
name: Kcakol, J.
name: Kubiś, W.
name: Marciszewski, W.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: Primary 46A03, 54H11, Secondary 22A05, 54C35

description: We start the systematic study of Fréchet spaces which are $\aleph$-spaces in the weak topology. A topological space $X$ is an $\aleph_0$-space or an $\aleph$-space if $X$ has a countable $k$-network or a $σ$-locally finite $k$-network, respectively. We are motivated by the following result of Corson (1966): If the space $C_{c}(X)$ of continuous real-valued functions on a Tychonoff space $X$ endowed with the compact-open topology is a Banach space, then $C_{c}(X)$ endowed with the weak topology is an $\aleph_0$-space if and only if $X$ is countable. We extend Corson's result as follows: If the space $E:=C_{c}(X)$ is a Fréchet lcs, then $E$ endowed with its weak topology $σ(E,E')$ is an $\aleph$-space if and only if $(E,σ(E,E'))$ is an $\aleph_0$-space if and only if $X$ is countable. We obtain a necessary and some sufficient conditions on a Fréchet lcs to be an $\aleph$-space in the weak topology. We prove that a reflexive Fréchet lcs $E$ in the weak topology $σ(E,E')$ is an $\aleph$-space if and only if $(E,σ(E,E'))$ is an $\aleph_0$-space if and only if $E$ is separable. We show however that the nonseparable Banach space $\ell_{1}(\mathbb{R})$ with the weak topology is an $\aleph$-space.
description: 18 pages
Challenges for heavy QCD axion inflation
Creators: name: Takahashi, Fuminobu
name: Yin, Wen
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We examine the theoretical possibility for the heavy QCD axion to induce slow-roll inflation while solving the strong CP problem through the Peccei-Quinn mechanism. If the cancellation between contributions from a small-size instanton and another Peccei-Quinn symmetry breaking occurs with high accuracy, the potential can be flattened enough near its maximum to achieve hilltop inflation. This comes at the cost of severe fine-tuning of their relative size and phase, but it also allows us to relate the high quality problem of the Peccei-Quinn symmetry to the fine-tuning problem of the hilltop inflation. There are two classes of such axion hilltop inflation, each giving a different relation between the axion mass at the minimum and the decay constant. The first class predicts the relation $m_ϕ\sim 10^{-6}f_ϕ$, and the axion can decay via the gluon coupling and reheat the universe. Most of the predicted parameter region will be covered by various experiments such as CODEX, DUNE, FASER, LHC, MATHUSLA, and NA62 where the production and decay proceed through the same coupling that induced reheating. The second class predicts the relation $m_ϕ\sim 10^{-6} f^2_ϕ/ M_{\rm pl}$. In this case, the axion mass is much lighter than in the previous case, and one needs another mechanism for successful reheating. The viable decay constant is restricted to be $10^8{\rm GeV} \lesssim f_ϕ\lesssim 10^{10}\,$GeV, which will be probed by future experiments on the electric dipole moment of nucleons. In both cases, requiring the axion hilltop inflation results in the strong CP phase that is close to zero.
description: 20pages, 3figures, published version (mirror QCD scenario added, reheating via QCD sphaleron explained in more detail)
Mean Field Behavior during the Big Bang Regime for Coalescing Random Walks
Creators: name: Hermon, Jonathan
name: Li, Shuangping
name: Yao, Dong
name: Zhang, Lingfu
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60J90, 60J27

description: In this paper we consider coalescing random walks on a general connected graph $G=(V,E)$. We set up a unified framework to study the leading order of the decay rate of $P_t$, the expectation of the fraction of occupied sites at time $t$, particularly for the `Big Bang' regime where $t\ll t_{\text{coal}}:=\mathbb{E}[\inf\{s:\text{There is only one particle at time }s\}]$. Our results show that $P_t$ satisfies certain mean field behavior, if the graphs satisfy certain transience-like conditions. We apply this framework to two families of graphs: (1) graphs given by the configuration model with a degree distribution supported in $[3,\bar d]$ for some $\bar d\geq 3$, and (2) finite and infinite vertex-transitive graphs. In the first case, we show that for $1 \ll t \ll |V|$, $P_t$ decays in the order of $t^{-1}$, and $(tP_t)^{-1}$ is approximately the probability that two particles starting from the root of the corresponding unimodular Galton-Watson tree never collide after one of them leaves the root, which is also roughly $|V|/(2t_{\text{meet}})$, where $t_{\text{meet}}$ is the mean meeting time of two walkers. By taking the local weak limit, for the unimodular Galton-Watson tree we prove the convergence of $tP_t$ as $t\to\infty$. For the second family of graphs, if we take a sequence of finite graphs $G_n=(V_n, E_n)$, such that $t_{\text{meet}}=O(|V_n|)$ and the inverse of the spectral gap $t_{\text{rel}}$ is $o(|V_n|)$, then for $t_{\text{rel}}\ll t\ll t_{\text{coal}}$, $(tP_t)^{-1}$ is approximately the probability that two random walks never meet before time $t$, and also $|V|/(2t_{\text{meet}})$. In addition, we define a natural uniform transience condition, and show that it implies the above for all $1\ll t\ll t_{\text{coal}}$. Such estimates of $tP_t$ are also obtained for all infinite transient transitive unimodular graphs, in particular, all transient transitive amenable graphs.
description: 72 pages
title: Interpretation of Geophysical data from the Eastern margin of the Okataina Volcanic Centre
Creators: name: Lithgow, R.
name: Massiot, Cecile
name: Bertrand, Edward A.
name: Heise, Wiebke
name: Miller, Craig A.
name: Bennie, Stewart L.
name: Brakenrig, Thomas
name: Coup, Lauren
name: Macdonald, Nick
Publisher: name: GNS Science
Year: 2022

description: The Okataina Volcanic Centre (OVC) is an active caldera complex located in the Taupō Volcanic Zone that has experienced at least four probable caldera collapses since 550 ka. Imaging the shape of the caldera and its margins is important to reconstruct the timing and mechanisms of the successive caldera collapses, and provide the context to interpret monitoring signals of the volcano’s activity. However, topographic margins observable on the surface do not necessarily reflect the major structures where the collapse is focused at depth. The structural caldera margins are covered by deposits from more recent eruptions and require geophysical surveys to image the subsurface. For example, existing gravity data cover the entire OVC and identify the eastern caldera margin across the Puhipuhi Basin as the steepest gravity gradient in the region, indicating a distinct boundary despite a lack of topographical relief. While these data identify the caldera margin, additional high-resolution geophysical surveys, sensitive to other physical properties (e.g. resistivity), are required to evaluate the depth of the basement and geometry of the caldera margin. This study presents the interpretation of two geophysical surveys that both measure subsurface electrical properties but at different resolutions and depth extents: magnetotelluric (MT) and electrical resistivity tomography (ERT) along a 2 km section of Tarawera Road and with an extension to the west. These MT and ERT datasets were inverted independently and then compared together with the gravity data. The inverted MT data imaged to 2 km depth below surface while the ERT survey imaged to a shallower depth of approximately 200 to 300 m but with higher resolution. The MT model shows a clear lateral contrast in resistivity at the location of the strong gravity gradient inferred to mark the caldera margin; conductive within and resistive outside the caldera. The ERT survey agrees well with the shallow portion of the MT model to ~200 m depth and shows a horizontal highly resistive layer at 150 m above sea level with another resistive body below at 50 to -150 m above sea level. The combination of techniques (MT, ERT and gravity) suggests that the caldera margin forms a fault zone over a 1 km-wide zone dipping to the west. The depth to the top of the greywacke basement is inferred at ca. 300 to 500 m below ground, though uncertainties remain. The combined techniques clarified the position of the structural margin. This study will help improve our understanding of the mechanism of caldera collapse at the OVC. (The authors)
Additional file 2 of The chest CT features of coronavirus disease 2019 (COVID-19) in China: a meta-analysis of 19 retrospective studies
Creators: name: Haitao Yang
name: Yuzhu Lan
name: Xiujuan Yao
name: Lin, Sheng
name: Baosong Xie
Publisher: name: figshare
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy

description: Additional file 2. The 36 references of exclusion.
False Vacuum Transitions - Analytical Solutions and Decay Rate Values
Creators: name: Correa, R. A. C.
name: Moraes, P. H. R. S.
name: da Rocha, Roldao
Publisher: name: arXiv
Year: 2015
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this work we show a class of oscillating configurations for the evolution of the domain walls in Euclidean space. The solutions are obtained analytically. Phase transitions are achieved from the associated fluctuation determinant, by the decay rates of the false vacuum.
description: 6 pages, improved to match the final version to appear in EPL
Etude du rôle des déformations locales résultant de sollicitations hydriques dans l’altération des pierres de construction par desquamation en plaques
Creators: name: DAHER, Mohamad
Publisher: name: Academic Journal of Civil Engineering
Year: 2024

description: Cette étude contribue à la compréhension des processus d’altération des pierres de construction en conditions réelles. En effet, la desquamation en plaques est une forme d’altération des pierres calcaires comme le tuffeau, pierres des châteaux de la Loire, dont les mécanismes de formation sont encore mal connus. Parmi les hypothèses émises pour expliquer ce phénomène, les déformations différentielles provoquées par l’humidification partielle de la pierre pourraient être à l’origine de la fissuration. Des études antérieures ont prouvé la limitation de l’utilisation de jauges de contrainte pour la surveillance mécanique en raison de la taille et de la nature locale de la mesure. La technique de corrélation d’images numériques (CIN) s’est avérée être une méthode significative sans contact et non destructive pour les mesures de déformation en plein champ de divers matériaux, y compris les roches naturelles et donc hétérogènes. Dans ce travail, nous avons étudié les paramètres de la CIN et le processus d’étalonnage afin d’identifier la meilleure configuration pour travailler avec un matériau poreux sous charge mécanique et hydrique. Notre objectif est de calibrer un système de mesure qui sera utilisé pour mesurer la dilatation hydrique, où des études antérieures ont démontré que l’ordre des déformations détectées est compris entre 10-5 et 10-4.
description: Academic Journal of Civil Engineering, Vol 42 No 1 (2024): Special Issue - RUGC 2024
Mécanique de l’endommagement non-local avec interactions évolutives pour la modélisation des matériaux quasi-fragiles : endommagement anisotrope et approche Eikonale à gradient implicite
Creators: name: Ribeiro Nogueira, Breno
Publisher: name: Academic Journal of Civil Engineering
Year: 2024

description: La prédiction de la fissuration est essentielle pour évaluer la durabilité d’une structure sous chargement complexe. Dans un formalisme thermodynamique, ce processus nonlinéaire peut être décrit de manière continue par une variable d’endommagement. Ce travail a pour but de fournir un cadre théorique et numérique pour le développement des modèles d’endommagement non-locaux à gradient implicite avec interactions évolutives. L’attention est portée sur l’approche Eikonale (ENLG), où les interactions évolutives sont considérées via une métrique Riemannienne dépendante de l’endommagement. Le modèle est dérivé suivant le formalisme des milieux micromorphes basé sur la géométrie différentielle, ce qui permet de montrer que la dissipation respecte le second principe de la thermodynamique. Ensuite, le modèle ENLG est couplé à un modèle d’endommagement anisotrope avec un tenseur d’ordre deux. L’anisotropie induite par l’endommagement est naturellement considérée dans le comportement et dans les interactions. Des cas test sont étudiés, tout en mettant en évidence les aspects numériques associés.
description: Academic Journal of Civil Engineering, Vol 42 No 1 (2024): Special Issue - RUGC 2024
Finite approximations of $p$-local compact groups
Creators: name: Gonzalez, Alex
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Topology (math.AT)
subject: FOS: Mathematics
subject: 55R35, 55R40, 20D20

description: We show that the classifying space of a $p$-local compact group is approximated by a telescope of classifying spaces of $p$-local finite groups. This result has numerous implications, like a Stable Elements Theorem for $p$-local compact groups, or the description of the homotopy type of certain mapping spaces.
Inside ASCENT: Exploring a Deep Commonsense Knowledge Base and its Usage in Question Answering
Creators: name: Nguyen, Tuan-Phong
name: Razniewski, Simon
name: Weikum, Gerhard
Publisher: name: arXiv
Year: 2021
Subjects: subject: Artificial Intelligence (cs.AI)
subject: Computation and Language (cs.CL)
subject: FOS: Computer and information sciences

description: ASCENT is a fully automated methodology for extracting and consolidating commonsense assertions from web contents (Nguyen et al., WWW 2021). It advances traditional triple-based commonsense knowledge representation by capturing semantic facets like locations and purposes, and composite concepts, i.e., subgroups and related aspects of subjects. In this demo, we present a web portal that allows users to understand its construction process, explore its content, and observe its impact in the use case of question answering. The demo website and an introductory video are both available online.
description: Demo website: https://ascent.mpi-inf.mpg.de; introductory video: https://youtu.be/qMkJXqu_Yd4
Editorial
Creators: name: Aranda Da Silva, José
Publisher: name: Revista Portuguesa de Farmacoterapia
Year: 2014

description: A Revista Portuguesa de Farmacoterapia (RPF) passou a barreira dos cinco anos de vida, mantendo a sua publicação regular todos os trimestres. No primeiro editorial, em 2009, dizíamos que «encontrámos como motivação o facto de não existir nenhuma publicação do género no nosso país, designadamente que permita uma atualização permanente da comunidade médica, farmacêutica e investigadores relativamente à atividade científica desenvolvida em Portugal nas áreas da Farmacologia, Farmacoterapia e ciências relacionadas. A Revista Portuguesa de Farmacoterapia trata-se, assim, de uma revista científica trimestral com a qual pretendemos suprimir esta lacuna».

Podemos hoje dizer que a RPF respondeu à necessidade identificada em 2009 e consolidou, ao longo dos anos, um espaço entre os profissionais e os académicos que utilizam a farmacoterapia como ferramenta de trabalho.

Os resultados obtidos até agora, no que se refere à qualidade dos artigos, devem-se ao próprio valor intrínseco dos textos aceites para publicação, mas também ao indispensável trabalho da Comissão Científica, cujos membros efetuam rigorosas revisões e propostas de melhoria dos artigos submetidos.

Temos de agradecer o contributo prestado por todos os envolvidos, nomeadamente a equipa redatorial, que constitui o cimento que une todas as atividades da revista.
A disseminação da revista e a sua aceitabilidade por parte dos profissionais de saúde e de diversas faculdades e centros de investigação são uma recompensa inestimável para quem a dirige e para o grupo redatorial que a constrói todos os trimestres.

A RPF alargou a sua intervenção com a realização anual de uma reunião sobre «Controvérsias com Medicamentos», a qual tem reunido grande interesse e participação. Também se realizaram regularmente reuniões de reflexão sobre diversos temas com atualidade. Nas reuniões de reflexão, grupos de peritos discutem um tema, sendo posteriormente publicado na revista um documento consensualizado por todos os participantes e resultante da discussão sobre o tema proposto.

O próximo desafio vai ser a digitalização da revista, tornando-a acessível na Internet, bem como a sua internacionalização, nomeadamente nos países de língua portuguesa. Este número conta com o artigo original «Willingness to Pay (Vontade para Pagar) por um Serviço de Preparação Individualizada da Medicação (PIM)» e com o artigo de revisão «Quinze Anos de Avaliação Económica de Medicamentos em Portugal: uma Revisão». Disponibilizamos ainda, como habitualmente, as secções de documentos publicados, normas aprovadas e em consulta, leituras recomendadas, legislação relevante, prémios e agenda para o próximo trimestre, que julgamos serem de relevante interesse para os nossos leitores.
description: Revista Portuguesa de Farmacoterapia, v. 6 n. 3 (2014): Julho
Dynamics for a quantum parliament
Creators: name: Bagarello, F.
name: Gargano, F.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we propose a dynamical approach based on the Gorini-Kossakowski-Sudarshan-Lindblad equation for a problem of decision making. More specifically, we consider what was recently called a quantum parliament, asked to approve or not a certain law, and we propose a model of the connections between the various members of the parliament, proposing in particular some special form of the interactions giving rise to a {\em collaborative} or non collaborative behaviour.
Evidence for self-interaction of charge distribution in charge-coupled devices
Creators: name: Guyonnet, A.
name: Astier, P.
name: Antilogus, P.
name: Regnault, N.
name: Doherty, P.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Charge-coupled devices (CCDs) are widely used in astronomy to carry out a variety of measurements, such as for flux or shape of astrophysical objects. The data reduction procedures almost always assume that ther esponse of a given pixel to illumination is independent of the content of the neighboring pixels. We show evidence that this simple picture is not exact for several CCD sensors. Namely, we provide evidence that localized distributions of charges (resulting from star illumination or laboratory luminous spots) tend to broaden linearly with increasing brightness by up to a few percent over the whole dynamic range. We propose a physical explanation for this "brighter-fatter" effect, which implies that flatfields do not exactly follow Poisson statistics: the variance of flatfields grows less rapidly than their average, and neighboring pixels show covariances, which increase similarly to the square of the flatfield average. These covariances decay rapidly with pixel separation. We observe the expected departure from Poisson statistics of flatfields on CCD devices and show that the observed effects are compatible with Coulomb forces induced by stored charges that deflect forthcoming charges. We extract the strength of the deflections from the correlations of flatfield images and derive the evolution of star shapes with increasing flux. We show for three types of sensors that within statistical uncertainties,our proposed method properly bridges statistical properties of flatfields and the brighter-fatter effect.
Reparameterization Dependence and Holographic Complexity of Black Holes
Creators: name: Mounim, Ayoub
name: Mück, Wolfgang
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We refine the calculation of holographic complexity of black holes in the complexity equals action approach by applying the recently introduced criterion that the action of any causal diamond in static vacuum regions must vanish identically. This criterion fixes empty anti-de Sitter (AdS) spacetime as the reference state with vanishing complexity and renders holographic complexity explicitly finite in all the cases we consider. The cases considered here include the Reissner-Nordström-AdS black hole, the rotating BTZ black hole, the Kerr-AdS black hole, and AdS-Vaidya spacetime. The criterion is equivalent to imposing that the corner contributions vanish. Contrary to earlier results, we find that the generalized Lloyd bound always holds in the Reissner-Nordström-AdS and BTZ cases.
description: 41 pages, 9 figures, v2: added references, v3: part on AdS-Kerr totally rewritten
Exocyst complex protein expression in the human placenta
Creators: name: Gonzalez, IM
name: Ackerman, William
name: Vandre, DD
name: Robinson, JM
Publisher: name: University of Illinois at Chicago
Year: 2022
Subjects: Uncategorized

description: INTRODUCTION: Protein production and secretion are essential to syncytiotrophoblast function and are associated with cytotrophoblast cell fusion and differentiation. Syncytiotrophoblast hormone secretion is a crucial determinant of maternal-fetal health, and can be misregulated in pathological pregnancies. Although, polarized secretion is a key component of placental function, the mechanisms underlying this process are poorly understood. OBJECTIVE: While the octameric exocyst complex is classically regarded as a master regulator of secretion in various mammalian systems, its expression in the placenta remained unexplored. We hypothesized that the syncytiotrophoblast would express all exocyst complex components and effector proteins requisite for vesicle-mediated secretion more abundantly than cytotrophoblasts in tissue specimens. METHODS: A two-tiered immunobiological approach was utilized to characterize exocyst and ancillary proteins in normal, term human placentas. Exocyst protein expression and localization was documented in tissue homogenates via immunoblotting and immunofluorescence labeling of placental sections. RESULTS: The eight exocyst proteins, EXOC1, 2, 3, 4, 5, 6, 7, and 8, were found in the human placenta. In addition, RAB11, an important exocyst complex modulator, was also expressed. Exocyst and Rab protein expression appeared to be regulated during trophoblast differentiation, as the syncytiotrophoblast expressed these proteins with little, if any, expression in cytotrophoblast cells. Additionally, exocyst proteins were localized at or near the syncytiotrophoblast apical membrane, the major site of placental secretion. DISCUSSION/CONCLUSION: Our findings highlight exocyst protein expression as novel indicators of trophoblast differentiation. The exocyst's regulated localization within the syncytiotrophoblast in conjunction with its well known functions suggests a possible role in placental polarized secretion.
Ultracold fermions in a cavity-induced artificial magnetic field
Creators: name: Kollath, Corinna
name: Brennecke, Ferdinand
Publisher: name: arXiv
Year: 2015
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We show how a fermionic quantum gas in an optical lattice and coupled to the field of an optical cavity can self-organize into a state in which the spontaneously emerging cavity field amplitude induces an artificial magnetic field. The fermions form either a chiral insulator or a chiral liquid carrying edge currents. The feedback mechanism via the cavity field enables robust and fast switching of the edge currents and the cavity output can be employed for non-destructive measurements of the atomic dynamics.
description: 4 figures
Additional file 1 of Sleep disturbances among physicians during COVID-19 pandemic
Creators: name: Alnofaiey, Yasser H.
name: Alshehri, Haneen A.
name: Maram M. Alosaimi
name: Shrooq H. Alswat
name: Alswat, Raghad H.
name: Rahaf M. Alhulayfi
name: Meteb A. Alghamdi
name: Alsubaie, Reem M.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Figure S1. Knowledge about COVID-19 among different specialities. Figure S2. Prevalence of sleep disorders according to specialties.
Markov-Modulated Affine Processes
Creators: name: Kurt, Kevin
name: Frey, Rüdiger
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Mathematical Finance (q-fin.MF)
subject: FOS: Mathematics
subject: FOS: Economics and business
subject: 60J25, 60J35, 91B70

description: We study Markov-modulated affine processes (abbreviated MMAPs), a class of Markov processes that are created from affine processes by allowing some of their coefficients to be a function of an exogenous Markov process. MMAPs allow for richer models in various applications. At the same time MMAPs largely preserve the tractability of standard affine processes, as their characteristic function has a computationally convenient functional form. Our setup is a substantial generalization of earlier work, since we consider the case where the generator of the exogenous process $X$ is an unbounded operator (as is the case for diffusions or jump processes with infinite activity). We prove existence of MMAPs via a martingale problem approach, we derive the formula for their characteristic function and we study various mathematical properties of MMAPs. The paper closes with a discussion of several applications of MMAPs in finance.
description: 32 pages
A CCD Search for Variable Stars in the Open Cluster NGC 6611
Creators: name: Michalska, G.
name: Kołaczkowski, Z.
name: Leiton, R.
name: Szewczyk, O.
name: Kinemuchi, K.
name: V.
name: Kalari, M.
Publisher: name: arXiv
Year: 2023
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present the results of the $UBVI_C$ variability survey in the young open cluster NGC 6611 based on observations obtained during 34 nights spanning one year. In total, we found 95 variable stars. Most of these stars are classified as periodic and irregular pre-main sequence (PMS) stars. The analysis of the $JHK_S$ 2MASS photometry and four-colour IRAC photometry revealed 165 Class II young stellar sources, 20 of which are irregular variables and one is an eclipsing binary. These classifications, complemented by $JHK$ UKIDSS photometry and $riHα$ VPHAS photometry, were used to identify 24 candidates for classical T Tauri stars and 30 weak-lined T Tauri stars. In addition to the PMS variables, we discovered eight $δ$ Scuti candidates. None of these were previously known. Furthermore, we detected 17 eclipsing binaries where two were previously known. Based on the proper motions provided by the Gaia EDR3 catalogue, we calculated the cluster membership probabilities for 91 variable stars. For 61 variables, a probability higher than 80% was determined, which makes them cluster members. Only 25 variables with a probability less than 20% were regarded to be non-members.
description: 30 pages, 31 figures
Improved Limits on Sterile Neutrino Dark Matter using Full-Sky Fermi Gamma-Ray Burst Monitor Data
Creators: name: Ng, Kenny C. Y.
name: Horiuchi, Shunsaku
name: Gaskins, Jennifer M.
name: Smith, Miles
name: Preece, Robert
Publisher: name: arXiv
Year: 2015
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: A sterile neutrino of ~keV mass is a well motivated dark matter candidate. Its decay generates an X-ray line that offers a unique target for X-ray telescopes. For the first time, we use the Gamma-ray Burst Monitor (GBM) onboard the Fermi Gamma-Ray Space Telescope to search for sterile neutrino decay lines; our analysis covers the energy range 10-25 keV (sterile neutrino mass 20-50 keV), which is inaccessible to X-ray and gamma-ray satellites such as Chandra, Suzaku, XMM-Newton, and INTEGRAL. The extremely wide field of view of the GBM enables a large fraction of the Milky Way dark matter halo to be probed. After implementing careful data cuts, we obtain ~53 days of full sky observational data. We observe an excess of photons towards the Galactic Center, as expected from astrophysical emission. We search for sterile neutrino decay lines in the energy spectrum, and find no significant signal. From this, we obtain upper limits on the sterile neutrino mixing angle as a function of mass. In the sterile neutrino mass range 25-40 keV, we improve upon previous upper limits by approximately an order of magnitude. Better understanding of detector and astrophysical backgrounds, as well as detector response, will further improve the sensitivity of a search with the GBM.
description: 16 pages, 11 figures, references added, discussion expanded, some typos fixed, matches the published version
Prym varieties and moduli of polarized Nikulin surfaces
Creators: name: Farkas, Gavril
name: Verra, Alessandro
Publisher: name: arXiv
Year: 2015
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: We present a structure theorem for the moduli space R_7 of Prym curves of genus 7 as a projective bundle over the moduli space of 7-nodal rational curves. The existence of this parametrization implies the unirationality of R_7 and that of the moduli space of Nikulin surfaces of genus 7, as well as the rationality of the moduli space of Nikulin surfaces of genus 7 with a distinguished line. Using the results in genus 7, we then establish that R_8 is uniruled.
description: 12 pages. To appear in Advances in Math
Cavity optimization for Unruh effect at small accelerations
Creators: name: Stargen, D. Jaffino
name: Lochan, Kinjalk
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: One of the primary reasons behind the difficulty in observing the Unruh effect is that for achievable acceleration scales the finite temperature effects are significant only for the low frequency modes of the field. Since the density of field modes falls for small frequencies in free space, the field modes which are relevant for the thermal effects would be less in number to make an observably significant effect. In this work, we investigate the response of a Unruh-DeWitt detector coupled to a massless scalar field which is confined in a long cylindrical cavity. The density of field modes inside such a cavity shows a {\it resonance structure} i.e. it rises abruptly for some specific cavity configurations. We show that an accelerating detector inside the cavity exhibits a non-trivial excitation and de-excitation rates for {\it small} accelerations around such resonance points. If the cavity parameters are adjusted to lie in a neighborhood of such resonance points, the (small) acceleration-induced emission rate can be made much larger than the already observable inertial emission rate. We comment on the possibilities of employing this detector-field-cavity system in the experimental realization of Unruh effect, and argue that the necessity of extremely high acceleration can be traded off in favor of precision in cavity manufacturing for realizing non-inertial field theoretic effects in laboratory settings.
description: 5 pages + 4 pages of appendix, 3 figures; to appear in Phys. Rev. Lett
Additional file 2 of The association between immune-related adverse events and survival outcomes in Asian patients with advanced melanoma receiving anti-PD-1 antibodies
Creators: name: Wu, Chiao-En
name: Chan-Keng Yang
name: Meng-Ting Peng
name: Pei-Wei Huang
name: Ching-Fu Chang
name: Kun-Yun Yeh
name: Chun-Bing Chen
name: Chih-Liang Wang
name: Chao-Wei Hsu
name: Chen, I-Wen
name: Lin, Cheng-Tao
name: Shir-Hwa Ueng
name: Gigin Lin
name: Lin, Yu-Fen
name: Chi-Yuan Cheng
name: Chang, John Wen-Cheng
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Cancer
subject: Science Policy

description: Additional file 2: Supplementary Table 1. Adverse events.