cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Line contribution to the critical Casimir force between a homogeneous and a chemically stepped surface
Creators: name: Toldin, Francesco Parisen
name: Tröndle, Matthias
name: Dietrich, S.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Recent experimental realizations of the critical Casimir effect have been implemented by monitoring colloidal particles immersed in a binary liquid mixture near demixing and exposed to a chemically structured substrate. In particular, critical Casimir forces have been measured for surfaces consisting of stripes with periodically alternating adsorption preferences, forming chemical steps between them. Motivated by these experiments, we analyze the contribution of such chemical steps to the critical Casimir force for the film geometry and within the Ising universality class. By means of Monte Carlo simulations, mean-field theory, and finite-size scaling analysis we determine the universal scaling function associated with the contribution to the critical Casimir force due to individual, isolated chemical steps facing a surface with homogeneous adsorption preference or with Dirichlet boundary condition. In line with previous findings, these results allow one to compute the critical Casimir force for the film geometry and in the presence of arbitrarily shaped, but wide stripes. In this latter limit the force decomposes into a sum of the contributions due to the two homogeneous parts of the surface and due to the chemical steps between the stripes. We assess this decomposition by comparing the resulting sum with actual simulation data for the critical Casimir force in the presence of a chemically striped substrate.
description: 17 pages, 14 figures; v2: added references, 17 pages, 14 figures. This is an author-created, un-copyedited version of an article published in J. Phys.: Condens. Matter. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The Version of Record is available online at http://dx.doi.org/10.1088/0953-8984/27/21/214010
D8.5 Impact Assessment and Exploitation Final Report
Creators: name: Tomar, Rahul
Publisher: name: Zenodo
Year: 2024

description: This Deliverable 8.5,  "Impact Assessment and Exploitation Final Report,” was published in September 2024 under work package 8. This WP focused on communicating the project results and disseminating the outcomes, making an impact within the European digital twin sector and beyond. It related to task 8.3,”Impact Assessment, Exploitation and Sustainability”, led by our SME partner, Digital Twin Technology. 

Abstract

The deliverable updates on the impact assessment, market analysis and swot analysis of the project done in the previous deliverables. The deliverable further expands on the exploitation plans and the licensing of the platform and its components.
Helix (Cochlogena) maximiliana var. melanostoma S. Moricand 1836
Creators: name: Breure, Abraham S. H.
name: Tardy, Emmanuel
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Helicidae
Helix
Helix maximiliana
Melanostoma, helix (cochlogena) maximiliana

description: melanostoma, Helix (Cochlogena) maximiliana [var. β], S. Moricand, 1836b: 431.
Type locality: [Brazil, Bahia] Illheos [Blanchet]. (Bulimulidae).
– Remarks. No material was found that unambiguously can be attributed as type material.
Two syntypes labeled as this variety in NMB 1376c.
description: Published as part of Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, pp. 113-138 in Revue suisse de Zoologie 123 (1) on page 122, DOI: 10.5281/zenodo.46292
The thermodynamics of a black hole in equilibrium implies the breakdown of Einstein equations on a macroscopic near-horizon shell
Creators: name: Anastopoulos, Charis
name: Savvidou, Ntina
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study a black hole of mass $M$, enclosed within a spherical box, in equilibrium with its Hawking radiation. We show that the spacetime geometry inside the box is described by the Oppenheimer-Volkoff equations for radiation, except for a {\em thin shell} around the horizon. We use the maximum entropy principle to show that the invariant width of the shell is of order $\sqrt{M}$, its entropy is of order $M$ and its temperature of order $1/\sqrt{M}$ (in Planck units). Thus, the width of the shell is {\em much larger} than the Planck length. Our approach is to insist on thermodynamic consistency when classical general relativity coexists with the Hawking temperature in the description of a gravitating system. No assumptions about an underlying theory are made and no restrictions are placed on the origins of the new physics near the horizon. We only employ classical general relativity and the principles of thermodynamics. Our result is strengthened by an analysis of the trace anomaly associated to the geometry inside the box, i.e., the regime where quantum field effects become significant corresponds to the shells of maximum entropy around the horizon.
description: 21 pages, 2 figures. This version has a different title, but otherwise only small changes. Version to appear in JHEP
Temps et traces en géographie
Creators: name: Badariotti, Dominique
Publisher: name: Zenodo
Year: 2022
Subjects: temps, temporalité, trace, géographie

description: Cet article présente la question du temps dans la conception de la géographie, ainsi que sa représentation dans les dynamiques spatiales d’une part ; et d’autre part la question des traces présentes dans l’espace, et exprimant une dimension temporelle
Dynamically assisted Sauter-Schwinger effect in inhomogeneous electric fields
Creators: name: Schneider, Christian
name: Schützhold, Ralf
Publisher: name: arXiv
Year: 2014
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Via the worldline instanton method, we study electron-positron pair creation by a strong electric field of the profile $E/\cosh^2(kx)$ superimposed by a weaker pulse $E'/\cosh^2(ωt)$. If the temporal Keldysh parameter $γ_ω=mω/(qE)$ exceeds a threshold value $γ_ω^{\rm crit}$ which depends on the spatial Keldysh parameter $γ_k=mk/(qE)$, we find a drastic enhancement of the pair creation probability -- reporting on what we believe to be the first analytic non-perturbative result for the interplay between temporal and spatial field dependences $E(t,x)$ in the Sauter-Schwinger effect.
description: 13 pages, 4 figures
title: Quels sont les gestes professionnels favorisant une bonne estime de soi des élèves ?
title: Quels sont les gestes professionnels favorisant une bonne estime de soi des élèves ?
titleType: AlternativeTitle
Creators: name: Basha, Egzona Nurcaj
name: Pires Nunes, Patricia
Publisher: name: Unknown
Year: 0
Subjects: subject: Image de soi
subject: estime de soi
subject: estime de soi scolaire
subject: compétences
subject: capacités
subject: gestes professionnels
subject: pratiques enseignantes

description: Oui, l’estime de soi influence la motivation et les capacités scolaires. L’image que l’enfant a et se construit, tout au long de sa vie, de lui même, peut être perçue, soit comme un moteur, soit comme un frein dans son développement personnel ainsi que dans ses apprentissages scolaires. En tant que futures enseignantes, nombreuses sont les questions qui nous viennent en tête, mais sur laquelle devons-nous nous arrêter ? Commençant par une partie théorique qui reprend de nombreuses définitions liées à ce sujet, puis au travers de diverses observations, entretiens ainsi que leur analyse, ce mémoire a pour but de relever des gestes quotidiens à intégrer dans les pratiques enseignantes afin de favoriser l’estime de soi des élèves, et donc de répondre à la question courante : “Que faire? »
Synthesis of orthoaminocarbonitrile tetrahydronaphthalenes catalyzed by butyl-3-methylimidazolium hexafluorophosphate ionic liquid base catalyst
Creators: name: Khorasani, Mahsa
name: Naeimi, Hossein
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
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: 69999 Biological Sciences not elsewhere classified
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: In this research, the treatment of cyclohexanone, malononitrile, and aromatic aldehydes was carried out for the successful synthesis of orthoaminocarbonitrile tetrahydronaphthalenes by using butyl-3-methylimidazolium hexafluorophosphate as a base catalyst. In this protocol, the target products were obtained in high to excellent yields between 85% and 95% and short reaction times between 10 and 20 min under mild conditions. All products were identified by the melting points, FT-IR, and 1H NMR techniques.
A scalable and diversity-oriented synthesis of (±)-paeoveitols
Creators: name: Rashid, Showkat
name: Rashid, Auqib
name: Bhat, Bilal A.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Molecular Biology
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Marine Biology
subject: Plant Biology
subject: Computational Biology

description: Gram scale synthesis of (±)-paeoveitol, a nor-diterpene harboring an unusual benzofuran stitched benzopyran 6/5/6/6 tetracyclic ring system, and its analogues, emanating from bench-top reagents is reported. Scandium triflate-mediated inverse electron demand [4 + 2] cycloaddition reaction between pre-synthesized paeoveitol-D analogue (dienophile) and ortho-quinone methide precursor (diene), both resulting from the same starting material delivered (±)-paeoveitol in decent yield. Fine tuning of the synthetic strategy not only helped to procure scalable quantities of natural product but also provided ample scope to look for the diversity-oriented synthesis of its analogues.
One-pot synthesis, antimicrobial activities, and drug-likeness analysis of some novel 1,2-benzoxaphosphinines, phospholobenzofuran, and chromonyl/coumarinyl/indenonyl phosphonate
Creators: name: Ali, Tarik E.
name: Assiri, Mohammed A.
name: Hassanin, Noha M.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Pharmacology
subject: Biotechnology
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: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Inorganic Chemistry
subject: Computational Biology

description: Some novel phosphorus compounds of types 1,2-benzoxaphosphinines, phospholo-[3,4-b][1]benzofuran, and chromonyl/coumarinyl/indenonyl phosphonates were achieved. The methodology depended on reaction of 1-(2-hydroxyphenyl)-3-phenylpropane-1,3-dione (1) with diethyl phosphite in the absence and presence of electrophilic reagent. Reaction of substrate 1 with diethyl phosphite in the presence of a base afforded 3-benzoyl-4-hydroxy-2-oxido-2H-1,2-benzoxaphosphinine (2), white its reaction with diethyl phosphite in the presence of ammonia, formaldehyde and chloroacetyl chloride under basic conditions gave the corresponding 4-ethoxy-4-oxido-2-phenyl-3,4-dihydro[1,2]benzoxaphosphinino[3,4-b] pyrrole (6) and 1-benzoyl-2-ethoxy-3-hydroxy-2-oxido-2H-phospholo[3,4-b][1]benzofuran (7), respectively. In addition, treatment of compound 1 with diethyl phosphite in the presence of DMFDMA, ethyl chloroacetate and oxalyl chloride under the same conditions led to the formation of chromonyl/coumarinyl/indenonyl phosphonates 3, 8, and 10, respectively, in moderate yields. The reaction mechanisms for the formation of these products were presented and explained. The molecular structures of products were deduced by spectral and analytical tools. The antimicrobial activity for the novel products were evaluated. The antimicrobial results were supported by SwissADME server based in silico computations. Both products 6 and 10 showed excellent antimicrobial properties.
Extending holomorphic maps from Stein manifolds into affine toric varieties
Creators: name: Lärkäng, Richard
name: Lárusson, Finnur
Publisher: name: arXiv
Year: 2014
Subjects: subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 14M25 (Primary), 32E10, 32Q28 (Secondary)

description: A complex manifold $Y$ is said to have the interpolation property if a holomorphic map to $Y$ from a subvariety $S$ of a reduced Stein space $X$ has a holomorphic extension to $X$ if it has a continuous extension. Taking $S$ to be a contractible submanifold of $X=\mathbb{C}^n$ gives an ostensibly much weaker property called the convex interpolation property. By a deep theorem of Forstnerič, the two properties are equivalent. They (and about a dozen other nontrivially equivalent properties) define the class of Oka manifolds. This paper is the first attempt to develop Oka theory for singular targets. The targets that we study are affine toric varieties, not necessarily normal. We prove that every affine toric variety satisfies a weakening of the interpolation property that is much stronger than the convex interpolation property, but the full interpolation property fails for most affine toric varieties, even for a source as simple as the product of two annuli embedded in $\mathbb{C}^4$.
description: 14 pages, v2 and v3: minor corrections and clarifications. To appear in Proceedings of the AMS
A Gröbner Basis for Schubert Patch Ideals
Creators: name: Neye, Emmanuel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Commutative Algebra (math.AC)
subject: Algebraic Geometry (math.AG)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 13C40 (Primary) 13P10, 14M06, 14M12 (Secondary)

description: Schubert patch ideals are a class of generalized determinantal ideals. They are prime defining ideals of open patches of Schubert varieties in the type $A$ flag variety. In this paper, we adapt the linkage-theoretic approach of E. Gorla, J. Migliore, and U. Nagel to prove a conjecture of A. Yong, namely, that the essential minors of every Schubert patch ideal form a Gröbner basis. Using the same approach, we recover the result of A. Woo and A. Yong that the essential minors of a Kazhdan-Lusztig ideal form a Gröbner basis. With respect to the standard grading of assigning degree 1 to each variable, we also show that homogeneous Schubert patch ideals and homogeneous Kazhdan-Lusztig ideals (and hence, Schubert determinantal ideals) are glicci.
description: 36 pages
Federated Learning with Superquantile Aggregation for Heterogeneous Data
Creators: name: Pillutla, Krishna
name: Laguel, Yassine
name: Malick, Jérôme
name: Harchaoui, Zaid
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: Optimization and Control (math.OC)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present a federated learning framework that is designed to robustly deliver good predictive performance across individual clients with heterogeneous data. The proposed approach hinges upon a superquantile-based learning objective that captures the tail statistics of the error distribution over heterogeneous clients. We present a stochastic training algorithm that interleaves differentially private client filtering with federated averaging steps. We prove finite time convergence guarantees for the algorithm: $O(1/\sqrt{T})$ in the nonconvex case in $T$ communication rounds and $O(\exp(-T/κ^{3/2}) + κ/T)$ in the strongly convex case with local condition number $κ$. Experimental results on benchmark datasets for federated learning demonstrate that our approach is competitive with classical ones in terms of average error and outperforms them in terms of tail statistics of the error.
description: Machine Learning Journal, Special Issue on Safe and Fair Machine Learning (To appear)
title: Les rituels du matin au deuxième cycle primaire
title: Les rituels du matin au deuxième cycle primaire
titleType: AlternativeTitle
Creators: name: Gega, Alexandra
name: Moreno, Lisa Clara
Publisher: name: Unknown
Year: 0
Subjects: subject: Accueil
subject: Conception
subject: Entretien d’autoconfrontation
subject: Gestion de classe
subject: Pratiques enseignantes
subject: Rituels du matin

description: Aujourd’hui, bien qu’ils varient d’une classe à l’autre, les rituels du matin font partie intégrante de la vie de classe. Si chaque enseignant-e met en place ses propres rituels du matin, qu’en est-il de leur élaboration et de leur mise en pratique ? Les enseignant-e-s ont-ilselles conscience de l’utilisation de tels rituels ? Comment savoir s’ils sont efficaces ? Toutes ces interrogations nous ont permis de penser et préciser notre question de recherche qui est la suivante : Comment les enseignant-e-s du cycle 2 conçoivent-ils-elles les rituels du matin ? Dans cette question de recherche, le terme concevoir à une importance toute particulière pour notre recherche. En effet, nous tenons compte du double sens de ce verbe. Nous nous intéresserons au sens lié à la conception mentale des rituels ainsi qu’au sens lié à la mise en oeuvre de ces derniers. L’objectif de ce travail de mémoire est de comprendre la conception des rituels du matin chez les enseignant-e-s du cycle 2. Pour ce faire, lors d’entretiens d’autoconfrontation, nous avons confronté les enseignant-e-s à des enregistrements vidéoscopiques réalisés lors des moments d’accueil. Les participant-e-s sont donc confronté-e-s à leurs propres gestes professionnels, devaient décrire et commenter leurs activités. Nos résultats mettent en évidence que les enseignant-e-s mettent en place différents rituels du matin dans leur classe, mais que la notion liée à la conception mentale n’est pas systématiquement présente.
A Stacking Survey of Gamma-ray Pulsars
Creators: name: Song, Yuzhe
name: Paglione, Timothy A. D.
name: Tan, Joshua
name: Lee-Georgescu, Charles
name: Herrera, Danisbel
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We report on a likelihood stacking search for gamma-ray pulsars at 362 high-latitude locations that coincide with known radio pulsar positions. We observe a stacked signal conservatively 2.5$σ$ over the background. Stacking their likelihood profiles in spectral parameter space implies a pulsar-like spectral index and a characteristic flux a factor of 2 below the Fermi-LAT point source sensitivity, assuming isotropic/unbeamed emission from all sample pulsars. The same procedures performed on empty control fields indicate that the pulsars as a population can be distinguished from the background with a $Δ$(TS) = 28 at the peak location (or 4.8$σ$), and the stacked spectra of the control fields are distinctly softer than those of the pulsars. This study also probes a unique region of parameter space populated by low \Edot\ pulsars, most of which have no \gray\ ephemeris available, and is sensitive to high duty cycles. We also discusses the possible \gray\ emission mechanism from such pulsars.
description: Accepted for publication to MNRAS
Evolution, complexité et flèche du temps
Creators: name: Beslon, Guillaume
name: Liard, Vincent
name: Rouzaud-Cornabas, Jonathan
Publisher: name: Zenodo
Year: 2023
Subjects: temps, temporalité, complexification, biologie computationnelle, évolution

description: L’observation naïve du vivant laisse à penser que les systèmes biologiques se sont complexifiés au cours des temps évolutifs et, partant, qu’il existerait en évolution une « flèche du temps » caractérisée par une accumulation de complexité. Afin de questionner l’existence d’une flèche du temps en évolution, nous avons utilisé un modèle informatique (la plate-forme Aevol développée par l’équipe Beagle à Lyon) pour étudier l’évolution d’organismes initialement simples placés dans un environnement lui-même suffisamment simple pour ne pas exiger l’émergence de structures complexes. Nos résultats montrent que, même dans un tel contexte expérimental, les organismes tendent à se complexifier au niveau génomique et fonctionnel. L'analyse des dynamiques évolutive suggère que cette complexification soit due à un mécanisme de « cliquet de complexité » lié à l'existence de trajectoires évolutives antagonistes entrainant une complexification irréversible.
Dynamics of a multipartite hybrid quantum system with beamsplitter, dipole-dipole, and Ising interactions
Creators: name: Laha, Pradip
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The possibility of exploiting heterogeneous quantum systems to high precision, for storing, processing, and transmitting information makes them ideal candidates for multi-tasking purposes in quantum communication. Appropriate quantum systems involving a judicious choice of interactions which augment each other, are potentially useful for probing deep into quantum regimes. Here, we make use of one such hybrid bipartite quantum model, with one subsystem made of a pair of qubits and another comprising a pair of oscillators, to study the entanglement dynamics, and the entanglement transfer between discrete and continuous variables. Our basic model is the standard double Jaynes-Cummings system, which is known to support both entanglement transfer and entanglement sudden death, under suitable conditions. In this work, we generalise this model to include further experimentally relevant interactions, such as the beamsplitter-type exchange interaction between the oscillators, and dipole-dipole and Ising-type interactions between the qubits. The manner in which various interactions and initial oscillator states affect the entanglement dynamics, is examined theoretically, for generic experimental conditions. Using exact analytical solutions, we show that compared to the beamsplitter or dipole-dipole interaction, the Ising interaction can have a significant positive impact on entanglement sudden death and birth, and postponement of the onset of these phenomena, apart from producing substantial reduction in the time duration of the death.
description: Accepted version
Auris crenocarina var. melanostoma S. Moricand 1841
Creators: name: Breure, Abraham S. H.
name: Tardy, Emmanuel
Publisher: name: Zenodo
Year: 2016
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Bulimulidae
Auris
Auris crenocarina
Melanostoma, melanopsis crenocarina

description: melanostoma, Melanopsis crenocarina [var. α], S. Moricand, 1841a: 62.
Type locality: [Brazil] Rio de Pedra Branca, province de Bahia [Blanchet]. Syntypes: MHNG-INVE-91242 (3) (Thiaridae) [Fig. 7].
description: Published as part of Breure, Abraham S. H. & Tardy, Emmanuel, 2016, From the shadows of the past: Moricand senior and junior, two 19 th century naturalists from Geneva, with their newly described taxa and molluscan types, pp. 113-138 in Revue suisse de Zoologie 123 (1) on page 122, DOI: 10.5281/zenodo.46292
Poker as a Skill Game: Rational vs Irrational Behaviors
Creators: name: Javarone, Marco Alberto
Publisher: name: arXiv
Year: 2014
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Computer Science and Game Theory (cs.GT)
subject: Social and Information Networks (cs.SI)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: In many countries poker is one of the most popular card games. Although each variant of poker has its own rules, all involve the use of money to make the challenge meaningful. Nowadays, in the collective consciousness, some variants of poker are referred to as games of skill, others as gambling. A poker table can be viewed as a psychology lab, where human behavior can be observed and quantified. This work provides a preliminary analysis of the role of rationality in poker games, using a stylized version of Texas Hold'em. In particular, we compare the performance of two different kinds of players, i.e., rational vs irrational players, during a poker tournament. Results show that these behaviors (i.e., rationality and irrationality) affect both the outcomes of challenges and the way poker should be classified.
description: 15 pages, 5 figures
Biogeography of the Sunda Shelf revisited: Insights from Macaranga section Pruinosae (Euphorbiaceae)
Creators: name: Dixit, Nadi Manjunath
name: Zirpel, Malte
name: Slik, Johan Willem Ferry
name: Jamsari, J.
name: Weising, Kurt
name: Guicking, Daniela
Publisher: name: Universität Kassel
Year: 2023
Subjects: subject: Bangka/Belitung islands
subject: genotyping-by-sequencing
subject: geographic barriers
subject: Macaranga
subject: myrmecophytism
subject: nuclear microsatellites
subject: soil conditions
subject: Sundaland
subject: 570
subject: 580
subject: Sundaschelf
subject: Bangka-Belitung
subject: Wolfsmilchgewächse
subject: Macaranga
subject: Genotypisierung
subject: Biodiversität
subject: Satelliten-DNS
subject: Bodenchemie

description: Gefördert durch den Publikationsfonds der Universität Kassel
Fe3O4‐supported sulfonated graphene oxide as a green and magnetically separable nanocatalyst for synthesis of 2-amino-3-cyano-4H-chromene derivatives and their in-silico studies
Creators: name: Sharma, Shaily
name: Meena, Mahesh
name: Sharma, Himanshu
name: Yadav, Dinesh Kumar
name: Tiwari, Atul
name: Verma, Ved Prakash
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
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: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Marine Biology

description: Under ultrasound irradiation, 17 examples of 2-Amino-3-cyano-4H-chromene derivatives were prepared via one-pot three components domino Knoevenagel–Michael condensation reaction of aliphatic/aromatic/heterocyclic aldehydes, malononitrile, and α-naphthol/β–naphthol/resorcinol in the presence of Fe3O4‐supported sulfonated graphene oxide as a green and magnetically separable nanocatalyst in H2O: EtOH (1:1) solvent system. FT-IR, TGA, SEM, and XRD were used to evaluate the catalyst. The current protocol is appealing because of high atom economy (95%), excellent yields (88-95%), its short reaction time, waste-free conditions, cost-effectiveness, use of a nontoxic solvent, lack of high temperature for reflux, non-chromatographic purification of products, recyclability of catalyst, etc. In-silico studies were conducted on the selected proteins DNA gyrase (1KZN) and CYP51 (4WMZ) to study the docking interactions with highest docking scores 4h (−8.8 kcal/mol) and 4e (−10.1 kcal/mol), respectively. ADME and Toxicity analysis of docked compounds and reference drugs were also done.HighlightsRoom temperature and ultrasound assisted three-component synthesisSynthesis of biological important 4H-chromene derivatives in H2O: EtOH (1:1) solventHigh yields of products (88–95%) within rapid reaction time (10–15 min).High atom economy 95%.Avoid of column chromatographyIn-silico studiesEasy and fast work upMagnetically separable and reusable catalyst. Room temperature and ultrasound assisted three-component synthesis Synthesis of biological important 4H-chromene derivatives in H2O: EtOH (1:1) solvent High yields of products (88–95%) within rapid reaction time (10–15 min). High atom economy 95%. Avoid of column chromatography In-silico studies Easy and fast work up Magnetically separable and reusable catalyst.
title: Les élèves face aux stéréotypes issus de la diversité culturelle
title: Les élèves face aux stéréotypes issus de la diversité culturelle
titleType: AlternativeTitle
Creators: name: Feo, Esteban
name: Minder, Laetitia
Publisher: name: Unknown
Year: 0

description: Suite à nos différentes expériences touchant la variété culturelle avec des classes, nous avons orienté notre recherche sur le concept des « stéréotypes ». Le but est de percevoir si les élèves de 9-10 ans ont des stéréotypes culturels. Notre question de recherche est donc « Dans quelle mesure les élèves interrogés ont-ils des stéréotypes culturels ? » À l’aide d’un questionnaire, nous avons proposé aux élèves d’écrire des idées et des mots lorsque certaines régions étaient énoncées. Ces données ont permis de mener une analyse et de répondre à nos hypothèses qui tentent de comprendre si les élèves de 9-10 ans ont des stéréotypes culturels.
School Bullying-PTSD
Creators: name: Idsøe, Thormod
name: Keles, Serap
name: Pigott, Terri
name: Türken, Salman
Publisher: name: Open Science Framework
Year: 2023
Subjects: subject: Education

description: The association of bullying at school with symptoms and diagnosis of PTSD: An updated systematic review and meta-analysis
A challenge to the Delta G~0 interpretation of hydrogen evolution
Creators: name: Lindgren, Per
name: Kastlunger, Georg
name: Peterson, Andrew A.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: Platinum is a nearly perfect catalyst for the hydrogen evolution reaction, and its high activity has conventionally been explained by its close-to-thermoneutral hydrogen binding energy (G~0). However, many candidate non-precious metal catalysts bind hydrogen with similar strengths, but exhibit orders-of-magnitude lower activity for this reaction. In this study, we employ electronic structure methods that allow fully potential-dependent reaction barriers to be calculated, in order to develop a complete working picture of hydrogen evolution on platinum. Through the resulting ab initio microkinetic models, we assess the mechanistic origins of Pt's high activity. Surprisingly, we find that the G~0 hydrogen atoms are kinetically inert, and that the kinetically active hydrogen atoms have G's much weaker, similar to that of gold. These on-top hydrogens have particularly low barriers, which we compare to those of gold, explaining the high reaction rates, and the exponential variations in coverages can uniquely explain Pt's strong kinetic response to the applied potential. This explains the unique reactivity of Pt that is missed by conventional Sabatier analyses, and suggests true design criteria for non-precious alternatives.
MPEC 2023-E11 : 2023 DS1
Creators: name: Minor Planet Center Staff
Publisher: name: The Minor Planet Center
Year: 2023
Subjects: subject: Small Solar System bodies
valueUri: http://astrothesaurus.org/uat/1469
subject: 2023 DS1

description: The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements.  They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
Hantzsch-like three-component synthesis of bis(1,4-dihydropyridines) and bis(fused-1,4-dihydropyridines) linked to piperazine core via 2-phenoxyethanone linkage: Novel hybrid molecules
Creators: name: Salem, Mostafa E.
name: Fares, Ibrahim M. Z.
name: Ghozlan, Said A. S.
name: Elwahy, Ahmed H. M.
name: Abdelhamid, Ismail A.
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: 29999 Physical Sciences not elsewhere classified
subject: FOS: Physical sciences
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Ecology
subject: Developmental Biology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The molecular hybridization of various compounds with known pharmacological activity is a particularly popular approach for the development of potential drugs with improved pharmacokinetic profiles. In this respect, a novel series of bis(1,4-dihydropyridine-3,5-dicarbonitrile), bis(decahydroacridine), bis(tetrahydrodipyrazolo[3,4-b:4′,3′-e]pyridin), and bis(tetrahydropyrimido[4,5-b]quinoline-2,4,6-trione) derivatives linked to piperazine core via phenoxyethanone linkages were prepared via Hantzsch like reaction of the ((piperazine-1,4-diylbis(2-oxoethane-2,1-diyl))bis(oxy))dibenzaldehydes, with the appropriate active methylene containing reagents. Attempted synthesis of the target products via bis-alkylation of the appropriate phenol with 1,1′-(piperazine-1,4-diyl)bis(2-chloroethan-1-one) in different basic conditions were unsuccessful.
Schnelle Spurerkennung im H1-Detektor
Creators: name: Wolff, Thomas
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1989
Subjects: THESIS
DRIFT CHAMBER: JET
TRACK DATA ANALYSIS
TRIGGER: HARDWARE
PROGRAMMING
COSTS
tracks
NUMERICAL CALCULATIONS: MONTE CARLO
H1
DESY DESY HERA Stor STOR

description: Universität Hamburg, Diplomarbeit, 1989; 138 pp. (1989). = Universität Hamburg, Diplomarbeit, 1989
On the global uniqueness for the Einstein-Maxwell-scalar field system with a cosmological constant. Part 3: Mass inflation and extendibility of the solutions
Creators: name: Costa, João L.
name: Girão, Pedro M.
name: Natário, José
name: Silva, Jorge Drumond
Publisher: name: arXiv
Year: 2014
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Mathematical Physics (math-ph)
subject: Analysis of PDEs (math.AP)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 83C05 (Primary), 35Q76 (Secondary), 83C22, 83C57, 83C75

description: This paper is the third part of a trilogy dedicated to the following problem: given spherically symmetric characteristic initial data for the Einstein-Maxwell-scalar field system with a cosmological constant $Λ$, with the data on the outgoing initial null hypersurface given by a subextremal Reissner-Nordstrom black hole event horizon, study the future extendibility of the corresponding maximal globally hyperbolic development as a "suitably regular" Lorentzian manifold. In the first part of this series we established the well posedness of the characteristic problem, whereas in the second part we studied the stability of the radius function at the Cauchy horizon. In this third and final paper we show that, depending on the decay rate of the initial data, mass inflation may or may not occur. When the mass is controlled, it is possible to obtain continuous extensions of the metric across the Cauchy horizon with square integrable Christoffel symbols. Under slightly stronger conditions, we can bound the gradient of the scalar field. This allows the construction of (non-isometric) extensions of the maximal development which are classical solutions of the Einstein equations. Our results provide evidence against the validity of the strong cosmic censorship conjecture when $Λ>0$.
description: 48 pages, 5 figures; v2: some presentation changes, mostly in the Introduction; v3: substantial changes in Section 5; v4: expanded Introduction; some presentation changes; matches final published version
New constraints on modelling the random magnetic field of the MW
Creators: name: Beck, Marcus C.
name: Beck, Alexander M.
name: Beck, Rainer
name: Dolag, Klaus
name: Strong, Andrew W.
name: Nielaba, Peter
Publisher: name: arXiv
Year: 2014
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We extend the description of the isotropic and anisotropic random component of the small-scale magnetic field within the existing magnetic field model of the Milky Way from Jansson&Farrar, by including random realizations of the small-scale component. Using a magnetic-field power spectrum with Gaussian random fields, the NE2001 model for the thermal electrons and the Galactic cosmic-ray electron distribution from the current GALPROP model we derive full-sky maps for the total and polarized synchrotron intensity as well as the Faraday rotation-measure distribution. While previous work assumed that small-scale fluctuations average out along the line-of-sight or which only computed ensemble averages of random fields, we show that these fluctuations need to be carefully taken into account. Comparing with observational data we obtain not only good agreement with 408 MHz total and WMAP7 22 GHz polarized intensity emission maps, but also an improved agreement with Galactic foreground rotation-measure maps and power spectra, whose amplitude and shape strongly depend on the parameters of the random field. We demonstrate that a correlation length of ~220pc (50pc being a 5σlower limit) is needed to match the slope of the observed power spectrum of Galactic foreground rotation-measure maps. Using multiple realizations allows us also to infer errors on individual observables. We find that previously-used amplitudes for random and anisotropic random magnetic field components need to be rescaled by factors of ~0.3 and 0.6 to account for the new small-scale contributions. Our model predicts a rotation measure of -2.8\pm7.1 rad/m^2 and 4.4\pm11.0 rad/m^2 for the north and south Galactic poles respectively, in good agreement with observations. Applying our model to deflections of ultra-high-energy cosmic rays we infer a mean deflection of ~3.5\pm1.1 degree for 60 EeV protons arriving from CenA.
description: 28 pages, 12 figures, 2 tables
Explicit points on the Legendre curve III
Creators: name: Ulmer, Douglas
Publisher: name: arXiv
Year: 2014
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 11G05, 14G05, 11G40 (Primary) 11G10, 14G30, 14K07, 14K15 (Secondary)

description: We continue our study of the Legendre elliptic curve $y^2=x(x+1)(x+t)$ over function fields $K_d=\mathbf{F}_p(μ_d,t^{1/d})$. When $d=p^f+1$, we have previously exhibited explicit points generating a subgroup $V_d$ of $E(K_d)$ of rank $d-2$ and of finite, $p$-power index. We also proved the finiteness of $III(E/K_d)$ and a class number formula: $[E(K_d):V_d]^2=|III(E/K_d)|$. In this paper, we compute $E(K_d)/V_d$ and $III(E/K_d)$ explicitly as modules over $\mathbf{Z}_p[\mathrm{Gal}(K_d/F_p(t))]$.
description: v3: Section added to correct an error in an intermediate result. Main results not affected
Self-propulsion of a catalytically active particle near a planar wall: from reflection to sliding and hovering
Creators: name: Uspal, W. E.
name: Popescu, M. N.
name: Dietrich, S.
name: Tasinkevych, M.
Publisher: name: arXiv
Year: 2014
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Micron-sized particles moving through solution in response to self-generated chemical gradients serve as model systems for studying active matter. Their far-reaching potential applications will require the particles to sense and respond to their local environment in a robust manner. The self-generated hydrodynamic and chemical fields, which induce particle motion, probe and are modified by that very environment, including confining boundaries. Focusing on a catalytically active Janus particle as a paradigmatic example, we predict that near a hard planar wall such a particle exhibits several scenarios of motion: reflection from the wall, motion at a steady-state orientation and height above the wall, or motionless, steady "hovering." Concerning the steady states, the height and the orientation are determined both by the proportion of catalyst coverage and the interactions of the solutes with the different "faces" of the particle. Accordingly, we propose that a desired behavior can be selected by tuning these parameters via a judicious design of the particle surface chemistry.
Incorporating Texture Information into Dimensionality Reduction for High-Dimensional Images
Creators: name: Vieth, Alexander
name: Vilanova, Anna
name: Lelieveldt, Boudewijn
name: Eisemann, Elmar
name: Höllt, Thomas
Publisher: name: arXiv
Year: 2022
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: High-dimensional imaging is becoming increasingly relevant in many fields from astronomy and cultural heritage to systems biology. Visual exploration of such high-dimensional data is commonly facilitated by dimensionality reduction. However, common dimensionality reduction methods do not include spatial information present in images, such as local texture features, into the construction of low-dimensional embeddings. Consequently, exploration of such data is typically split into a step focusing on the attribute space followed by a step focusing on spatial information, or vice versa. In this paper, we present a method for incorporating spatial neighborhood information into distance-based dimensionality reduction methods, such as t-Distributed Stochastic Neighbor Embedding (t-SNE). We achieve this by modifying the distance measure between high-dimensional attribute vectors associated with each pixel such that it takes the pixel's spatial neighborhood into account. Based on a classification of different methods for comparing image patches, we explore a number of different approaches. We compare these approaches from a theoretical and experimental point of view. Finally, we illustrate the value of the proposed methods by qualitative and quantitative evaluation on synthetic data and two real-world use cases.
description: 10 pages main paper, 8 pages supplemental material. To appear at IEEE 15th Pacific Visualization Symposium 2022
Synthesis, reaction, antimicrobial, and docking study of new chalcones incorporating isoquinoline moiety
Creators: name: Mukhtar, Shorouk S.
name: Saleh, Fatma M.
name: Hassaneen, Hamdi M.
name: Hafez, Taghrid S.
name: Hassan, Ashraf S.
name: Morsy, Nesrin M.
name: Teleb, Mohamed A. Mohamed
Publisher: name: Taylor & Francis
Year: 2022
Subjects: subject: Biochemistry
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
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: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: 60506 Virology

description: Reaction of isoquinoline 1 with hydrazonoyl chlorides 2A–E gave the corresponding triazoloisoquinolines 4A–E. The latter products 4A–E were reacted with 4-(piperidin-1-yl)benzaldehyde 5a and 4-morpholinobenzaldehyde 5b to afford the corresponding chalcones 6a,b. Some of chalcones 6 were reacted with hydrazine hydrate in refluxing ethanol to give the corresponding 8,9-dimethoxy-1-aryl-4,5-dihydro-1H-pyrazol-3-yl-1,5,6,10b-tetrahydro-[1,2,4]triazolo[3,4-a]isoquinoline derivatives 7A–C. Antimicrobial studies were performed using gram-negative bacteria (Escherichia coli) and (Klebsiella pneumonia), a gram-positive bacteria (Streptococcus mutans) and (Staphylococcus aureus), filamentous fungus (Asperagillus Nigar) and yeast (Candida albicans). Data revealed that chalcone 6Aa achieved the lowest MIC values (high efficient derivative) against the sensitive bacterial strain E. coli with MIC value 130 µg/ml. The most effective compound 6Aa, which demonstrated the highest binding affinity toward tested protein [thymidine phosphorylase enzyme, (PDB ID:4EAD)], was docked using MOE 2014.09 software.
Robust Aggregation for Federated Learning
Creators: name: Pillutla, Krishna
name: Kakade, Sham M.
name: Harchaoui, Zaid
Publisher: name: arXiv
Year: 2019
Subjects: subject: Machine Learning (stat.ML)
subject: Cryptography and Security (cs.CR)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Federated learning is the centralized training of statistical models from decentralized data on mobile devices while preserving the privacy of each device. We present a robust aggregation approach to make federated learning robust to settings when a fraction of the devices may be sending corrupted updates to the server. The approach relies on a robust aggregation oracle based on the geometric median, which returns a robust aggregate using a constant number of iterations of a regular non-robust averaging oracle. The robust aggregation oracle is privacy-preserving, similar to the non-robust secure average oracle it builds upon. We establish its convergence for least squares estimation of additive models. We provide experimental results with linear models and deep networks for three tasks in computer vision and natural language processing. The robust aggregation approach is agnostic to the level of corruption; it outperforms the classical aggregation approach in terms of robustness when the level of corruption is high, while being competitive in the regime of low corruption. Two variants, a faster one with one-step robust aggregation and another one with on-device personalization, round off the paper.
Inclusive Lambdaproduktion in der $e^+ e^-$ Annihilationen bei 35 GeV
Creators: name: Brehm, Wolfgang
Publisher: name: Deutsches Elektronen-Synchrotron, DESY, Hamburg
Year: 1989
Subjects: THESIS
ELECTRON POSITRON: COLLIDING BEAMS
COLLIDING BEAMS: ELECTRON POSITRON
ELECTRON POSITRON: ANNIHILATION
ANNIHILATION: ELECTRON POSITRON
LAMBDA: ELECTROPRODUCTION
ELECTROPRODUCTION: LAMBDA
LAMBDA: MASS
MASS: LAMBDA
LAMBDA: WIDTH
DIFFERENTIAL CROSS SECTION: ENERGY DEPENDENCE
ENERGY DEPENDENCE: DIFFERENTIAL CROSS SECTION
YIELD: (LAMBDA ANTILAMBDA)
CELLO
EXPERIMENTAL RESULTS
DESY PETRA STOR
35 GEV-CMS

description: Universität Hamburg, Diplomarbeit, 1989; 62 pp. (1989). = Universität Hamburg, Diplomarbeit, 1989