cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The contribution of Narrow-Line Seyfert 1 galaxies to the soft X-ray background
Creators: name: Hasinger, G.
name: Lehmann, I.
name: Schmidt, M.
name: Gunn, J. E.
name: Schneider, D. P.
name: Giacconi, R.
name: Truemper, J.
name: Zamorani, G.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The ROSAT Ultradeep HRI survey in the Lockman Hole contains a complete sample of 91 X-ray sources with fluxes in the 0.5-2 keV band larger than 1.2 times 10e-15 erg cm-2 s-1, where over about 75 per cent of the sources are quasars or Seyfert galaxies. During the course of our optical identification work, we have obtained optical spectra of 67 narrow emission line galaxies (NELG), which are physically not associated with the X-ray sources. We have derived the equivalent width (EW) and the full width at half maximum (FWHM) for the most prominent emission lines of 41 quasars and Seyfert galaxies taken from the ROSAT Deep Survey (RDS), which has a flux limit of 5.5 times 10e-15 erg cm-2 s-1 in the 0.5-2.0 keV band. Furthermore we have obtained the EW and FWHM values of the field NELGs. Here we present the spectroscopic discrimination between RDS Seyfert galaxies and field galaxies (NELG). The analysis of the emission lines has revealed that a single object out of 69 spectroscopically identified AGN fits the optical criteria of Narrow-Line Seyfert 1 galaxies (NLS1). This may indicate that NLS1 contribute only marginally to the soft X-ray background, but we can not exclude a possible larger contribution.
description: Invited talk presented at the Joint MPE,AIP,ESO workshop on NLS1s, Bad Honnef, Dec. 1999, to appear in New Astronomy Reviews; also available at http://wave.xray.mpe.mpg.de/conferences/nls1-workshop
Biostratigraphy of the Cardenas formation (Upper Cretaceous) San Luis Potosi, Mexico
Creators: name: Myers, Ralph Lawrence, 1938-
Publisher: name: The University of Texas at Austin
Year: 1965
Subjects: subject: Geology, Stratigraphic--Cretaceous
subject: Paleontology--Mexico--San Luis Potosí (State)

description: The Cardenas Formation is a very fossiliferous 1050-meter thick unit of finely clastic sedimentary rocks that crops out in an asymmetric syncline in the folded Sierra Madre Oriental. Six versions of the stratigraphy at Cardenas have been published, but they have included partially inverted sequences because of failure to recognize the structure of the syncline. For this study the region around Cardenas was mapped on topographic sheets at a scale of 1:50,000, and the Cardenas syncline was mapped with plane table and alidade at a scale of 1:4,800. Of eleven measured sections, two were structurally uncomplicated and complete enough to establish the sequence of stratigraphic units. The Cardenas Formation, herein defined, is divided into three informally designated members. The lower member is 180 meters of alternating shale, sandstone, and biosparite (Folk, 1959); the middle member is 445 meters of shale and siltstone; the upper member is 430 meters of silts tone, sandstone, and biosparudite. The Cardenas Formation is unconformably overlain by unfossiliferous siltstone, sandstone, and conglomerate, the Tabaco Formation. In the present study 71 species of invertebrate fossils were collected from the Cardenas Formation: 8 rudists, 36 other bivalves, 14 gastropods, 6 corals, 4 echinoids, 2 serpulids, and 1 brachiopod. These occur in three assemblage zones at Cardenas. The middle zone and perhaps the lower zone are correlative with the Exogyra costata Zone of the Gulf Coastal Plain. The upper zone is probably younger than the Exogyra costata Zone, but still Maastrichtian. The Cardenas Formation is a "regressive" type of deposit; during its formation sedimentation changed repeatedly from deposition of fine elastics to the accumulation of biogenic limestones
title: Corpus LS-Colin sur plusieurs genres discursifs (Josette Bouchauveau et Henri Attia)
Creators: name: Cuxac, Christian
name: Boutet, Dominique
name: Fiore, Sonia
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2014
Subjects: subject: Langue des signes française
subject: fsl

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
A Random Walk to a Non-Ergodic Equilibrium Concept
Creators: name: Bel, Golan
name: Barkai, Eli
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Random walk models, such as the trap model, continuous time random walks, and comb models exhibit weak ergodicity breaking, when the average waiting time is infinite. The open question is: what statistical mechanical theory replaces the canonical Boltzmann-Gibbs theory for such systems? In this manuscript a non-ergodic equilibrium concept is investigated, for a continuous time random walk model in a potential field. In particular we show that in the non-ergodic phase the distribution of the occupation time of the particle on a given lattice point, approaches U or W shaped distributions related to the arcsin law. We show that when conditions of detailed balance are applied, these distributions depend on the partition function of the problem, thus establishing a relation between the non-ergodic dynamics and canonical statistical mechanics. In the ergodic phase the distribution function of the occupation times approaches a delta function centered on the value predicted based on standard Boltzmann-Gibbs statistics. Relation of our work with single molecule experiments is briefly discussed.
description: 14 pages, 6 figures
Capturing natural-colour 3D models of insects for species discovery
Creators: name: Nguyen, Chuong V.
name: Lovell, David R.
name: Adcock, Matt
name: La Salle, John
Publisher: name: arXiv
Year: 2017
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Collections of biological specimens are fundamental to scientific understanding and characterization of natural diversity. This paper presents a system for liberating useful information from physical collections by bringing specimens into the digital domain so they can be more readily shared, analyzed, annotated and compared. It focuses on insects and is strongly motivated by the desire to accelerate and augment current practices in insect taxonomy which predominantly use text, 2D diagrams and images to describe and characterize species. While these traditional kinds of descriptions are informative and useful, they cannot cover insect specimens "from all angles" and precious specimens are still exchanged between researchers and collections for this reason. Furthermore, insects can be complex in structure and pose many challenges to computer vision systems. We present a new prototype for a practical, cost-effective system of off-the-shelf components to acquire natural-colour 3D models of insects from around 3mm to 30mm in length. Colour images are captured from different angles and focal depths using a digital single lens reflex (DSLR) camera rig and two-axis turntable. These 2D images are processed into 3D reconstructions using software based on a visual hull algorithm. The resulting models are compact (around 10 megabytes), afford excellent optical resolution, and can be readily embedded into documents and web pages, as well as viewed on mobile devices. The system is portable, safe, relatively affordable, and complements the sort of volumetric data that can be acquired by computed tomography. This system provides a new way to augment the description and documentation of insect species holotypes, reducing the need to handle or ship specimens. It opens up new opportunities to collect data for research, education, art, entertainment, biodiversity assessment and biosecurity control.
description: 24 pages, 17 figures, PLOS ONE journal
Duration of El Niño and La Niña events : mechanisms and multiyear predictability
Creators: name: Wu, Xian
name: 0000-0001-8117-6603
Publisher: name: The University of Texas at Austin
Year: 2020
Subjects: El Niño-Southern Oscillation
Climate predictions

description: El Niño-Southern Oscillation (ENSO) is the dominant mode of interannual climate variability and affects global weather patterns via atmospheric teleconnections. Both warm (El Niño) and cold (La Niña) phases of the ENSO usually begin in boreal spring-summer and peak near the end of the calendar year. About two-thirds of El Niño and half of La Niña events terminate in the following year, but other events persist for another year or longer, prolonging the climate impacts. These long-lasting ENSO events, however, are not predicted in the current operational ENSO forecasts, which are generally limited to 12 months. This study investigates the mechanisms controlling the diverse duration of ENSO events and its multiyear predictability. Analyses of observational data and the Community Earth System Model, version 1 (CESM1), show that the leading factor controlling the event duration is the onset timing for El Niño and the amplitude of preceding warm event for La Niña. El Niño events developing in boreal spring-summer usually terminate after the peak due to early arrival of delayed negative oceanic feedback and fast adjustments of the tropical Atlantic and Indian Oceans to the tropical Pacific warming, whereas those developing after summer tend to last for an additional year. La Niña events preceded by a strong warm event usually persist into the second year because of large initial discharge of the equatorial oceanic heat content and delayed interbasin adjustments. Variability external to ENSO dynamics also contributes to the diversity of event duration. Motivated by previous modeling studies that show potential predictability of multiyear La Niña events preceded by a strong warm event, the predictability of El Niño duration is tested through idealized CESM1 experiments. The model successfully predicts the duration of El Niño events when initialized with oceanic conditions in the onset months. The predictability is attributed to the timing of delayed negative oceanic feedback and interbasin adjustments, in agreement with the diagnostic analyses. To further explore the predictability of ENSO event duration in the real world, we conduct multiyear ensemble CESM1 forecasts initialized with observed oceanic conditions on March 1, June 1, and November 1 of each year during 1954–2015. The CESM1 shows high prediction skills of event duration with lead times ranging from 6 to 25 months. The predictability of event duration arises from initial thermocline depth anomalies in the equatorial Pacific, as well as sea surface temperature anomalies within and outside the tropical Pacific. The forecast error growth of event duration, on the other hand, originates mainly from atmospheric variability over the North Pacific in boreal winter. The high predictability of event duration indicates the potential for extending the operational ENSO forecasts for up to two years.
Object-Centric Relational Representations for Image Generation
Creators: name: Butera, Luca
name: Cini, Andrea
name: Ferrante, Alberto
name: Alippi, Cesare
Publisher: name: arXiv
Year: 2023
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Conditioning image generation on specific features of the desired output is a key ingredient of modern generative models. However, existing approaches lack a general and unified way of representing structural and semantic conditioning at diverse granularity levels. This paper explores a novel method to condition image generation, based on object-centric relational representations. In particular, we propose a methodology to condition the generation of objects in an image on the attributed graph representing their structure and the associated semantic information. We show that such architectural biases entail properties that facilitate the manipulation and conditioning of the generative process and allow for regularizing the training procedure. The proposed conditioning framework is implemented by means of a neural network that learns to generate a 2D, multi-channel, layout mask of the objects, which can be used as a soft inductive bias in the downstream generative task. To do so, we leverage both 2D and graph convolutional operators. We also propose a novel benchmark for image generation consisting of a synthetic dataset of images paired with their relational representation. Empirical results show that the proposed approach compares favorably against relevant baselines.
description: Accepted at TMLR
Aquatic Balance
Creators: name: Kazm, DR . Hesham
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 390111
subject: Physical education and development curriculum and pedagogy

description: The authors are designing a training program to enhance balance using the Aquatic/Hydro balance program.Several studies have elucidated the importance of aquatic exercises in developing balance. Most research studying aquatic sports exercises has highlighted their ability to improve aerobic and muscular capacity. However, few studies have measured changes in balance with aquatic aerobic activity. Studies emphasize the significance of using aquatic fitness exercises as physical therapy interventions to contribute to balance development. This indicates the effectiveness of training programs utilizing aquatic environments in developing both dynamic and static balance as a physical attribute for athletes in various sports activities.
Synthesis, Antibacterial, Anti-Biofilm Properties, and Docking Study of Indeno[1,2-b]Pyridin-5-One Derivatives
Creators: name: Farghaly, Thoraya A.
name: Ibrahim, Mona H.
name: Medrasi, Hanadi Y.
name: Metwally, Shimaa A.
name: Zaki, Magdi E. A.
name: Al-Hussain, Sami A.
name: Muhammad, Zeinab A.
name: Kassab, Refaie M.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: In this context, we designed and synthesized a series of hydrazonal and their related indeno[1,2-b]pyridin-5-one derivatives to investigate their antibacterial and anti-biofilm properties. Several of the synthesized compounds exhibited significant efficacy against all microorganism species tested. Most of the compounds demonstrated favorable results when tested against Gram-positive bacteria. The derivatives 4a, 4f, 6c, and 6f exhibit the highest antimicrobial efficacy, as indicated by their minimum inhibitory concentration (MIC) values ranging from 4 to 512 μg/mL. We conducted additional investigations on 4a, 6c, and 6f for the purpose of examining their synergy using Checkerboard assay. Compound 6c demonstrated a synergistic impact against methicillin-sensitive Staphylococcus aureus (MSSA) and Pseudomonas aeruginosa, while exhibiting moderate synergistic activity against methicillin-resistant Staphylococcus aureus (MRSA). In addition, the simultaneous use of gentamycin with compounds 4a and 6f demonstrates a synergistic impact in fighting against methicillin-resistant Staphylococcus aureus (MRSA) and Pseudomonas aeruginosa, respectively. Three chosen compounds were evaluated for their antibiofilm efficacy. Application of 4a, 6c, and 6f effectively reduced the production of biofilms in MRSA, MSSA, and Pseudomonas aeruginosa, resulting in a significant decrease compared to the untreated samples. In addition, ADME and pharmacokinetic analyses were conducted for the three most potent derivatives, namely 4a, 6c, and 6f. Compounds 4a and 6c were subjected to docking in the LasR Quorum-Sensing Receptor, whereas compounds 6c and 6f were docked in the sortase enzyme.
Position-orientation adaptive smoothing of diffusion weighted magnetic resonance data (POAS)
Creators: name: Becker, Saskia
name: Tabelow, Karsten
name: Voss, Henning U.
name: Anwander, Alfred
name: Heidemann, Robin M.
name: Polzehl, Jörg
Publisher: name: Weierstrass Institute
Year: 2011
Subjects: subject: Diffusion weighted magnetic resonance imaging
subject: POAS
subject: Structural adaptive smoothing
subject: Special Euclidean motion group
subject: Lie groups
subject: 62P10
subject: 62G05
subject: 22E99

description: We introduce an algorithm for diffusion weighted magnetic resonance imaging data enhancement based on structural adaptive smoothing in both space and diffusion direction. The method, called POAS, does not refer to a specific model for the data, like the diffusion tensor or higher order models. It works by embedding the measurement space into a space with defined metric and group operations, in this case the Lie group of three-dimensional Euclidean motion SE(3). Subsequently, pairwise comparisons of the values of the diffusion weighted signal are used for adaptation. The position-orientation adaptive smoothing preserves the edges of the observed fine and anisotropic structures. The POAS-algorithm is designed to reduce noise directly in the diffusion weighted images and consequently also to reduce bias and variability of quantities derived from the data for specific models. We evaluate the algorithm on simulated and experimental data and demonstrate that it can be used to reduce the number of applied diffusion gradients and hence acquisition time while achieving similar quality of data, or to improve the quality of data acquired in a clinically feasible scan time setting.
Random sampling technique for ultra-fast computations of molecular opacities for exoplanet atmospheres
Creators: name: Min, Michiel
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: Opacities of molecules in exoplanet atmospheres rely on increasingly detailed line-lists for these molecules. The line lists available today contain for many species up to several billions of lines. Computation of the spectral line profile created by pressure and temperature broadening, the Voigt profile, of all of these lines is becoming a computational challenge. We aim to create a method to compute the Voigt profile in a way that automatically focusses the computation time into the strongest lines, while still maintaining the continuum contribution of the high number of weaker lines. Here, we outline a statistical line sampling technique that samples the Voigt profile quickly and with high accuracy. The number of samples is adjusted to the strength of the line and the local spectral line density. This automatically provides high accuracy line shapes for strong lines or lines that are spectrally isolated. The line sampling technique automatically preserves the integrated line opacity for all lines, thereby also providing the continuum opacity created by the large number of weak lines at very low computational cost. The line sampling technique is tested for accuracy when computing line spectra and correlated-k tables. Extremely fast computations (~3.5e5 lines per second per core on a standard current day desktop computer) with high accuracy (< 1 % almost everywhere) are obtained. A detailed recipe on how to perform the computations is given.
description: Accepted for publication in A&A
Additional file 4 of From inequalities to vulnerability paradoxes: juxtaposing older adults’ heat mortality risk and heat experiences
Creators: name: Wrotek, Małgorzata
name: Marginean, Iulia
name: Boni, Zofia
name: Chwałczyk, Franciszek
name: Vicedo-Cabrera, Ana M.
name: Salvador, Coral
name: Jancewicz, Barbara
Publisher: name: figshare
Year: 2025
Subjects: subject: Sociology
subject: FOS: Sociology

description: Supplementary Material 4
title: Corpus LS-Colin sur plusieurs genres discursifs (Philippe L'Huillier et Khadra Abdelgheffar)
Creators: name: Cuxac, Christian
name: Boutet, Dominique
name: Fiore, Sonia
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2014
Subjects: subject: Langue des signes française
subject: fsl

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
Global existence and uniqueness for a singular/degenerate Cahn--Hilliard system with viscosity
Creators: name: Colli, Pierluigi
name: Gilardi, Gianni
name: Podio-Guidugli, Paolo
name: Sprekels, Jürgen
Publisher: name: Weierstrass Institute
Year: 2012
Subjects: subject: phase field model
subject: nonlinear laws
subject: existence of solutions
subject: new uniqueness proof
subject: 35K61
subject: 35A05
subject: 74A15

description: Existence and uniqueness are investigated for a nonlinear diffusion problem of phase-field type, consisting of a parabolic system of two partial differential equations, complemented by Neumann homogeneous boundary conditions and initial conditions. This system aims to model two-species phase segregation on an atomic [19]; in the balance equations of microforces and microenergy, the two unknowns are the order parameter $rho$ and the chemical potential $mu$. A simpler version of the same system has recently been discussed in [8]. In this paper, a fairly more general phase-field equation for $rho$ is coupled with a genuinely nonlinear diffusion equation for $mu$. The existence of a global-in-time solution is proved with the help of suitable a priori estimates. In the case of costant atom mobility, a new and rather unusual uniqueness proof is given, based on a suitable combination of variables.
Radio Properties of NLS1s
Creators: name: Moran, Edward C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: While NLS1s have been studied intensively at X-ray and optical wavelengths, comparatively little is known about their characteristics in the radio band. Therefore, we have carried out an investigation of the radio luminosities, source sizes, spectral index distribution, and variability of a large, uniformly selected sample of NLS1s. Our results indicate that, in some respects, the radio properties of NLS1s differ significantly from those of classical Seyfert galaxies. Radio observations of NLS1s may thus provide important clues regarding the nature of their nuclear activity.
description: Contributed talk presented at the Joint MPE,AIP,ESO workshop on NLS1s, Bad Honnef, Dec. 1999, to appear in New Astronomy Reviews; also available at http://wave.xray.mpe.mpg.de/conferences/nls1-workshop
Bounds to electron spin qubit variability for scalable CMOS architectures
Creators: name: Cifuentes, Jesús D.
name: Tanttu, Tuomo
name: Gilbert, Will
name: Huang, Jonathan Y.
name: Vahapoglu, Ensar
name: Leon, Ross C. C.
name: Serrano, Santiago
name: Otter, Dennis
name: Dunmore, Daniel
name: Mai, Philip Y.
name: Schlattner, Frédéric
name: Feng, MengKe
name: Itoh, Kohei
name: Abrosimov, Nikolay
name: Pohl, Hans-Joachim
name: Thewalt, Michael
name: Laucht, Arne
name: Yang, Chih Hwan
name: Escott, Christopher C.
name: Lim, Wee Han
name: Hudson, Fay E.
name: Rahman, Rajib
name: Dzurak, Andrew S.
name: Saraiva, Andre
Publisher: name: arXiv
Year: 2023
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Spins of electrons in CMOS quantum dots combine exquisite quantum properties and scalable fabrication. In the age of quantum technology, however, the metrics that crowned Si/SiO2 as the microelectronics standard need to be reassessed with respect to their impact upon qubit performance. We chart the spin qubit variability due to the unavoidable atomic-scale roughness of the Si/SiO$_2$ interface, compiling experiments in 12 devices, and developing theoretical tools to analyse these results. Atomistic tight binding and path integral Monte Carlo methods are adapted for describing fluctuations in devices with millions of atoms by directly analysing their wavefunctions and electron paths instead of their energy spectra. We correlate the effect of roughness with the variability in qubit position, deformation, valley splitting, valley phase, spin-orbit coupling and exchange coupling. These variabilities are found to be bounded and lie within the tolerances for scalable architectures for quantum computing as long as robust control methods are incorporated.
description: 20 pages, 8 figures
Non-perturbative equivalences among large N gauge theories with adjoint and bifundamental matter fields
Creators: name: Kovtun, Pavel
name: Unsal, Mithat
name: Yaffe, Laurence G.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We prove an equivalence, in the large N limit, between certain U(N) gauge theories containing adjoint representation matter fields and their orbifold projections. Lattice regularization is used to provide a non-perturbative definition of these theories; our proof applies in the strong coupling, large mass phase of the theories. Equivalence is demonstrated by constructing and comparing the loop equations for a parent theory and its orbifold projections. Loop equations for both expectation values of single-trace observables, and for connected correlators of such observables, are considered; hence the demonstrated non-perturbative equivalence applies to the large N limits of both string tensions and particle spectra.
description: 40 pages, JHEP style
Stress propagation in granular media: Breaking of any constitutive state equation relating local stresses together by a change of boundary conditions
Creators: name: Evesque, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The stress response of a granular assembly subject to different changes of boundary conditions is studied experimentally in order to define the stress propagation characteristics. These results demonstrate that no simple and single relationship between local stresses exists, which would be imposed by the local structure of the granular assembly only in general. On the contrary, it is demonstrated that these results are controlled by the boundary conditions themselves and that a tiny change of them may lead to strong variations in the incrememental stress relation; furthermore, in other cases, these changes may generate large variations of the stress field and can allow to understand partly the fluctuations already observed in these media. PACS: 46.10+z ; 46.30.-i ; 81.05.Rm
description: 19 pages, 6 figures
GAS: A Gaussian Mixture Distribution-Based Adaptive Sampling Method for PINNs
Creators: name: Jiao, Yuling
name: Li, Di
name: Lu, Xiliang
name: Yang, Jerry Zhijian
name: Yuan, Cheng
Publisher: name: arXiv
Year: 2023
Subjects: subject: Machine Learning (cs.LG)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: 68T07, 65N99

description: With the recent study of deep learning in scientific computation, the Physics-Informed Neural Networks (PINNs) method has drawn widespread attention for solving Partial Differential Equations (PDEs). Compared to traditional methods, PINNs can efficiently handle high-dimensional problems, but the accuracy is relatively low, especially for highly irregular problems. Inspired by the idea of adaptive finite element methods and incremental learning, we propose GAS, a Gaussian mixture distribution-based adaptive sampling method for PINNs. During the training procedure, GAS uses the current residual information to generate a Gaussian mixture distribution for the sampling of additional points, which are then trained together with historical data to speed up the convergence of the loss and achieve higher accuracy. Several numerical simulations on 2D and 10D problems show that GAS is a promising method that achieves state-of-the-art accuracy among deep solvers, while being comparable with traditional numerical solvers.
Deformed Gaussian Orthogonal Ensemble Analysis of the Interacting Boson Model
Creators: name: Pato, M. P.
name: Nunes, C. A.
name: Lima, C. L.
name: Hussein, M. S.
name: Alhassid, Y.
Publisher: name: arXiv
Year: 1993
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: A Deformed Gaussian Orthogonal Ensemble (DGOE) which interpolates between the Gaussian Orthogonal Ensemble and a Poissonian Ensemble is constructed. This new ensemble is then applied to the analysis of the chaotic properties of the low lying collective states of nuclei described by the Interacting Boson Model (IBM). This model undergoes a transition order-chaos-order from the $SU(3)$ limit to the $O(6)$ limit. Our analysis shows that the quantum fluctuations of the IBM Hamiltonian, both of the spectrum and the eigenvectors, follow the expected behaviour predicted by the DGOE when one goes from one limit to the other.
description: 10 pages, 4 figures (avaiable upon request), IFUSP/P-1086 Replaced version: in the previous version the name of one of the authors was omitted
On the parameter choice in grad-div stabilization for incompressible flow problems
Creators: name: Jenkins, Eleanor
name: John, Volker
name: Linke, Alexander
name: Rebholz, Leo G.
Publisher: name: Weierstrass Institute
Year: 2012
Subjects: subject: incompressible Navier-Stokes equations
subject: mixed finite elements
subject: grad-div stabilization
subject: error estimates
subject: parameter choice
subject: 35Q30
subject: 76M10
subject: 65L60

description: Grad-div stabilization has been proved to be a very useful tool in discretizations of incompressible flow problems. Standard error analysis for inf-sup stable conforming pairs of finite element spaces predicts that the stabilization parameter should be optimally chosen to be O(1). This paper revisits this choice for the Stokes equations on the basis of minimizing the $H^1$ error of the velocity and the $L^2$ error of the pressure. It turns out, by applying a refined error analysis, that the optimal parameter choice is more subtle than known so far in the literature. It depends on the used norm, the solution, the family of finite element spaces, and the type of mesh. Depending on the situation, the optimal stabilization parameter might range from being very small to very large. The analytic results are supported by numerical examples.
Structure of southern Indio Mountains, Hudspeth County, Texas
Creators: name: Allday, Edwin, 1927-
Publisher: name: The University of Texas at Austin
Year: 1953
Subjects: subject: Geology, Stratigraphic
subject: Geology, Structural--Texas--Hudspeth County

description: The Indio Mountains are related stratigraphically to the Mexican Geosyncline, structurally to the Sierra Madre Oriental and the Basin-and-Range Province. Cretaceous sedimentary formations, approximately 5000 feet thick, are overstepped by Tertiary volcanic rocks. The Laramide orogeny produced compressional folds with a NW elongation, and several thrust faults. Reversal of thrusting occurs in this region; two major thrusts have displacements in opposite directions. Normal faulting occurred in late Tertiary time subsequent to a period of Tertiary volcanism. The major normal faults, with maximum throws of approximately 150 1500 feet, trend NW. Faults with a general E trend do not exceed 50 feet in throw
2FGL J0846.0+2820: A new neutron star binary with a giant secondary and variable $γ$-ray emission
Creators: name: Swihart, Samuel J.
name: Strader, Jay
name: Johnson, Tyrel J.
name: Cheung, C. C.
name: Sand, David
name: Chomiuk, Laura
name: Wasserman, Asher
name: Larsen, Søren
name: Brodie, Jean P.
name: Simonian, Gregory V.
name: Tremou, Evangelia
name: Shishkovsky, Laura
name: Reichart, Daniel E.
name: Haislip, Joshua
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present optical photometric and spectroscopic observations of the likely stellar counterpart to the unassociated \emph{Fermi}-Large Area Telescope (LAT) $γ$-ray source 2FGL J0846.0+2820, selected for study based on positional coincidences of optical variables with unassociated LAT sources. Using optical spectroscopy from the SOAR telescope, we have identified a late-G giant in an eccentric ($e$ = 0.06) 8.133 day orbit with an invisible primary. Modeling the spectroscopy and photometry together lead us to infer a heavy neutron star primary of $\sim 2 M_{\odot}$ and a partially stripped giant secondary of $\sim 0.8 M_{\odot}$. H$α$ emission is observed in some of the spectra, perhaps consistent with the presence of a faint accretion disk. We find the $γ$-ray flux of 2FGL J0846.0+2820 dropped substantially in mid-2009, accompanied by an increased variation in the optical brightness, and since then it has not been detected by \emph{Fermi}. The long period and giant secondary are reminiscent of the $γ$-ray bright binary 1FGL J1417.7--4407, which hosts a millisecond pulsar apparently in the final stages of the pulsar recycling process. The discovery of 2FGL J0846.0+2820 suggests the identification of a new subclass of millisecond pulsar binaries that are the likely progenitors of typical field millisecond pulsars.
description: 12 pages, 8 figures, 3 tables. Accepted for publication in ApJ
MODERN TREATMENT METHODS OF TIBIAL DIAPHYSEAL FRACTURES
Creators: name: Davlatov, B.N.
name: Tukhtayev, J.J.
name: Melikuzizoda, Sh.
name: Davlatov, Bakhodir
name: Tukhtayev, Jura
name: Melikuzizoda, Shokhislom
Publisher: name: Zenodo
Year: 2024

description: Fractures of the shaft of the tibia can result from a direct blow or a rotational force. Direct trauma frequently produces a transverse fracture or segmental fracture pattern, whereas rotational forces typically result in an oblique or spiral fracture.
Quasi-phase-matching for third harmonic generation in noble gases employing ultrasound
Creators: name: Sapaev, Usman
name: Babushkin, Ihar
name: Herrmann, Joachim
Publisher: name: Weierstrass Institute
Year: 2012
Subjects: subject: Four Wave Mixing
subject: Photoionization
subject: Ultrashort pulse propagation
subject: {78A60
subject: 35Q61
subject: 35Q60

description: We study a novel method of quasi-phase-matching for third harmonic generation in a gas cell using the periodic modulation of the gas pressure and thus of the third order nonlinear coefficient in the axial direction created by an ultrasound wave. Using a comprehensive numerical model we describe the quasi-phase matched third harmonic generation of UV (at 266 nm) and VUV pulses (at 133 nm) by using pump pulses at 800 nm and 400 nm, respectively, with pulse energy in the range from 3 mJ to 1 J. In addition, using chirped pump pulses, the generation of sub-20-fs VUV pulses without the necessity for an external chirp compensation is predicted.
Coronal Line Emission from NLS1s
Creators: name: O'Brien, P. T.
name: Bleackley, P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the optical coronal line spectra observed for a sample of 19 Narrow-Line Seyfert 1 galaxies. We find no correlation between the coronal line strength and the soft X-ray power-law index derived from ROSAT PSPC data. There is a trend for broader coronal lines to have larger equivalent widths. In addition, a strong trend is found between line width and velocity relative to the NLR. This trend is interpreted in terms of a decelerating outflow, originating close to the nucleus.
description: Contributed talk presented at the Joint MPE,AIP,ESO workshop on NLS1s, Bad Honnef, Dec. 1999, to appear in New Astronomy Reviews; also available at http://wave.xray.mpe.mpg.de/conferences/nls1-workshop
Additional file 1 of Preparing for the end-of-life: public attitudes towards advance directives and assisted suicide in Switzerland
Creators: name: Blanc, Solenne
name: Meier, Clément
name: Gamondi, Claudia
name: Maurer, Jürgen
name: Jox, Ralf J.
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Molecular Biology
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy

description: Additional file 1: Swiss component of the Survey on Health, Ageing, and Retirement in Europe (SHARE), questions from the paper-pencil questionnaire. Appendix 1 and Appendix 2
Accelerated rogue waves generated by soliton fusion at the advanced stage of supercontinuum formation in photonic crystal fibers
Creators: name: Driben, Rostislav
name: Babushkin, Ihar
Publisher: name: Weierstrass Institute
Year: 2012
Subjects: subject: Optical Solitons
subject: Fiber Optics
subject: Rogue Waves
subject: 78A60
subject: 35Q61
subject: 35Q60

description: Soliton fusion is a fascinating and delicate phenomenon that manifests itself in optical fibers in case of interaction between co-propagating solitons with small temporal and wavelengths separation. We show that the mechanism of acceleration of trailing soliton by dispersive waves radiated from the preceding one provides necessary conditions for soliton fusion at the advanced stage of supercontinuum generation in photonic crystal fibers (PCFs). As a result of fusion large intensity robust light structures arise and propagate over significant distances. In presence of small random noise the delicate condition for the effective fusion between solitons can easily be broken, making the fusion induced giant waves a rare statistical event. Thus oblong-shaped giant accelerated waves become excellent candidates for optical rogue waves.
Membrane solitons in eight-dimensional hyper-Kaehler backgrounds
Creators: name: Portugues, Ruben
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive the BPS equations satisfied by lump solitons in $(2+1)$-dimensional sigma models with toric 8-dimensional hyper-Kähler (${HK}_8$) target spaces and check they preserve 1/2 of the supersymmetry. We show how these solitons are realised in M theory as M2-branes wrapping holomorphic 2-cycles in the $\bE^{1,2}\times {HK}_8$ background. Using the $κ$-symmetry of a probe M2-brane in this background we determine the supersymmetry they preserve, and note that there is a discrepancy in the fraction of supersymmetry preserved by these solitons as viewed from the low energy effective sigma model description of the M2-brane dynamics or the full M theory. Toric ${HK}_8$ manifolds are dual to a Hanany-Witten setup of D3-branes suspended between 5-branes. In this picture the lumps correspond to vortices of the three dimensional ${\mathcal N}=3$ or ${\mathcal N}=4$ theory.
description: 12+1 pages. LaTex. v2: Typos corrected and references added
Eruptive history of the Pine Canyon Caldera, Big Bend National Park, Texas
Creators: name: Ogley, David Scott
Publisher: name: The University of Texas at Austin
Year: 1978
Subjects: subject: Geology--Texas--Big Bend National Park
subject: Calderas--Texas--Big Bend National Park
subject: Petrology--Texas--Big Bend National Park

description: The Chisos Mountains in the central part of Big Bend National Park are a deeply-eroded volcanic-intrusive complex of Oligocene age. Intrusive and extrusive units of the complex are subalkaline to midly peralkaline, and belong to the Trans-Pecos magmatic province, forming the southernmost expression of that province in the United States. At least two calderas are present in the Chisos Complex, both of which were active during the mid-Oligocene. The younger of the two known calderas, the Pine Canyon Caldera, was the source vent for the four major ash-flow units of the South Rim Formation. Volcanic and sedimentary rocks of the Chisos Formation, which unconformably underlies the South Rim Formation, were deformed by pre-eruption inflation of the Pine Canyon magma chamber. During eruption of the lower members of the South Rim Formation, the caldera collapsed by sagging rather than by faulting. Eruption of the youngest member of the South Rim Formation was accompanied by ring fracturing and fault-controlled collapse. Whole-rock major-element chemistry demonstrates a petrogenetic relationship between the intrusive and extrusive members of the caldera complex. The volcanic members were derived by progressive tapping of a shallow magma chamber in which alkali feldspar and later quartz were fractionating. Compositions of successive members of the eruptive sequence project progressively closer toward the minimum in the system albite - orthoclase - quartz at 500 bars water pressure. A late ring dike is cumulus material from the magma chamber; its composition plots slightly more quartz-rich than the temperature minimum. The distribution of the South Rim Formation and the related intrusions can be explained by a multi-stage eruptive history. Two similar ash-flow cycles are represented by the four members of the South Rim Formation. All four members spread southwest from the caldera, and their distribution was restricted by topography of the caldera rim and the volcanic flank. Caldera collapse at the end of ash-flow activity resulted in uneven subsidence and allowed emplacement of the ring dike. Intrusion of granitic bodies west of the caldera, framing The Basin on the north and west, was the final stage of igneous activity
Disarrangements in continua and the geometry of microstructure
Creators: name: Owen, David R.
Publisher: name: Carnegie Mellon University
Year: 1994
Subjects: subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Abstract: "The term 'disarrangement' is proposed here to describe geometrical changes either at the macroscale or at the microscale that are not accounted for by the classical deformations employed in continuum mechanics. Collections of non-classical deformations studied by Del Piero and Owen (1993) are then described in order to give a more precise context for the term 'disarrangement'. Examples of disarrangements both at the microscale and at the macroscale are presented, including disarrangements in liquid crystals, metallic crystals, and mixtures of continua. It is shown that volume-preserving deformations that are limits of discrete translations in crystallographically preferred directions necessarily are 'piecewise-shearing deformations'."
Geology of Cathedral Mountain quadrangle, Brewster County, Texas
Creators: name: McAnulty, William N.
Publisher: name: The University of Texas at Austin
Year: 1953
Subjects: subject: Geology--Texas--Brewster County

description: In the southeastern Davis Mountains, Trans-Pecos Texas, the Tertiary Buck Bill volcanic aeries, 4,600 feet thick, covers most of the Cathedral Mountain quadrangle, where it is more nearly complete than in Buck Hill and other quadrangles to the south. Northward from this typical southern sequence the Duff formation changes from dominantly rhyolite tuff to lavas, tuff, and conglomerate (Decie member), the Potato Hill andesite gradually changes from highly porphyritie to nonporphyritic rook, and the Crossen trachyte gains an appreciable amount of quartz. The name Pruett is restricted to the lowermost unit of tuff, sandstone, conglomerate, and nonmarine limestone; accordingly, it is overlain in ascending order by the Crossen trachyte, Sheep Canyon basalt, and Potato Hill andesite. The age of the Pruett tuff (restricted), on the basis of vertebrate fossils, is upper Eocene (Duchesne); it is equivalent to the lower Vieja series, to the Huelster formation of the McCutcheon series, and probably to the lower Chisos beds. The volcanic rocks rest unconformably on the Cretaceous Boquillas and Buda limestones. Other sedimentary formations exposed are the Grayson marl, Georgetown limestone, Edwards limestone, and conglomeratic sandstone of Trinity (?) age of the Comanche series; and the Permian Capitan limestone and Word formation of the Guadalupe series. Small areas along streams and over valley flats are veneered with Quaternary alluvium. Intrusive bodies of alkalic microsyenite, later than the youngest volcanic unit, are numerous; some effected considerable local deformation of the layered rocks. Effects of five crustal disturbances can be seen---mid-Mesozoic; late Cretaceous, pre-upper Eocene; and three in the late Cenozoic. Differential erosion of the intruded, folded, and faulted volcanic succession has fashioned a rough and diversified landscape
Lateral quantum confinement effect on monolayer high-Tc superconductors
Creators: name: He, Guanyang
name: Li, Yu
name: Lei, Yuxuan
name: Kreisel, Andreas
name: Andersen, Brian M.
name: Wang, Jian
Publisher: name: arXiv
Year: 2023
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Despite decades of research in spatially confined superconducting systems to understand the modification of superconductivity from reduced length scales, the investigation of the quantum confinement effect on high-temperature superconductors remains an outstanding challenge. Here, we report scanning tunneling spectroscopy measurements on laterally confined FeSe monolayers on SrTiO3 substrates, which are formed by epitaxially growing FeSe films with a coverage less than one unit cell. Comparing to the uniform regions of FeSe monolayers, the peninsula regions at the monolayer boundary exhibit reduced Fermi energy and undiminished superconductivity, leading to a putative crossover from a Bardeen-Cooper-Schrieffer state to a Bose-Einstein condensate state. In isolated FeSe monolayer islands, superconductivity is shown to exist in samples of smaller volume in contrast to conventional superconductors, while the validity of Anderson's criterion remains fulfilled. Our work reveals lateral quantum confinement effects in unconventional superconductors, to enrich the understanding of high-temperature superconductivity in low-dimensional systems.
title: La création des associations
Creators: name: Boutet, Dominique
name: Cuxac, Christian
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2014
Subjects: subject: Langue des signes française
subject: fsl
subject: general_linguistics

description: Conférence donnée par Guy Bouchauveau dans la cadre de la commémoration du bicentenaire de l'Institut National des Jeunes Sourds de Paris.
description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
On undrained test using Rowe's relation and Incremental Modelling: Generalisation of the notion of Characteristic State
Creators: name: Evesque, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: It is recalled that stress-strain incremental modelling is a common feature of most theoretical description of the mechanical behaviour of granular material. An other commonly accepted characteristics of the mechanical behaviour of granular material is the Rowe's relation which links the dilatancy K to the ratio B of vertical-to-lateral stress during a test at constant lateral stress, i.e. B =(1+M)(1+K). Using an incremental modelling, this law shall be interpreted as a pseudo-Poisson coefficient. We combine these two features to solve the problem of an axial compression under undrained condition. We demonstrate that the sample is submitted to a bifurcation of the transcritical type when it reaches the q=Mp line. This allows extending the notion of the characteristic state introduced by Luong to other situations and to anisotropic systems. We show also that these undrained tests are quite appropriate to study the characteristic-state behaviour.
description: 12 pages, 2 figures