cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Local approximation of arbitrary functions by solutions of nonlocal equations
Creators: name: Dipierro, Serena
name: Savin, Ovidiu
name: Valdinoci, Enrico
Publisher: name: Weierstrass Institute
Year: 2016
Subjects: subject: density properties
subject: approximation
subject: s-caloric functions
subject: 35R11
subject: 60G22
subject: 35A35
subject: 34A08

description: We show that any function can be locally approximated by solutions of prescribed linear equations of nonlocal type. In particular, we show that every function is locally s-caloric, up to a small error. The case of non-elliptic and non-parabolic operators is taken into account as well.
Which Noun Phrases Denote Which Concepts?
Creators: name: Jayant  Krishnamurthy
name: Mitchell, Tom
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: Resolving polysemy and synonymy is required for high-quality information extraction. We present ConceptResolver, a component for the Never-Ending Language Learner (NELL) (Carlson et al., 2010) that handles both phenomena by identifying the latent concepts that noun phrases refer to. ConceptResolver performs both word sense induction and synonym resolution on relations extracted from text using an ontology and a small amount of labeled data. Domain knowledge (the ontology) guides concept creation by defining a set of possible semantic types for concepts. Word sense induction is performed by inferring a set of semantic types for each noun phrase. Synonym detection exploits redundant information to train several domain-specific synonym classifiers in a semi-supervised fashion. When ConceptResolver is run on NELL’s knowledge base, 87% of the word senses it creates correspond to real-world concepts, and 85% of noun phrases that it suggests refer to the same concept are indeed synonyms.
title: Lexical elicitations on the theme of animals, domesticated or not, and humans (gender, stage in life, close-family ties)
Creators: name: Fily, Maxime
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Lataddi Narua
subject: nru

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
description: Using photos, the interviewer asks the names of animals that live in the region, and for humans the interviewer asks lexical items such as man, woman, ch
A Riemann--Kempf singularity theorem for higher rank Brill--Noether loci
Creators: name: Hitching, George H.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14H60

description: Given a vector bundle $V$ over a curve $X$, we define and study a surjective rational map $\mathrm{Hilb}^d (\mathbb{P} V ) - \mathrm{Quot}^{0, d} ( V^* )$ generalising the natural map $\mathrm{Sym}^d X \to \mathrm{Quot}^{0, d} ({\mathcal O}_X)$. We then give a generalisation of the geometric Riemann--Roch theorem to vector bundles of higher rank over $X$. We use this to give a geometric description of the tangent cone to the Brill--Noether locus $B^r_{r, d}$ at a suitable bundle $E$ with $h^0 (E) = r+n$. This gives a generalisation of the Riemann--Kempf singularity theorem. As a corollary, we show that the $n$th secant variety of the rank one locus of $\mathbb{P} \mathrm{End} E$ is contained in the tangent cone.
description: 19 pages
NEFT-KIMYO SANOATIDA AVTOMATIK ROSTLASH TIZIMLARI
Creators: name: Muxammadxo'jayeva, Sayoxatxon
Publisher: name: Zenodo
Year: 2024

description: Neft-kimyo sanoatida texnikaviy jarayonlari avtomatlashtirishni odamning ishtirok etishiga ko’ra quyidagilarga ajratish mumkin: avtomatik nazorat, avtomatik rostlash va avtomatik boshqarish [1].
Additional file 1: of Identification of TCR Vβ11-2-Dβ1-Jβ1-1 T cell clone specific for WT1 peptides using high-throughput TCRβ gene sequencing
Creators: name: Zhang, Yikai
name: Xu, Ling
name: Chen, Shaohua
name: Zha, Xianfeng
name: Wei, Wei
name: Li, Yangqiu
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Space Science
subject: Molecular Biology
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Virology

description: Table S1. Sequences of the BCR-ABL antigen peptides. (DOCX 17 kb)
Time dependent transformations in deformation quantization
Creators: name: Dias, Nuno Costa
name: Prata, Joao Nuno
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the action of time dependent canonical and coordinate transformations in phase space quantum mechanics. We extend the covariant formulation of the theory by providing a formalism that is fully invariant under both standard and time dependent coordinate transformations. This result considerably enlarges the set of possible phase space representations of quantum mechanics and makes it possible to construct a causal representation for the distributional sector of Wigner quantum mechanics.
description: 16 pages, to appear in the J. Math. Phys
Discovering Playing Patterns: Time Series Clustering of Free-To-Play Game Data
Creators: name: Saas, Alain
name: Guitart, Anna
name: Periáñez, África
Publisher: name: arXiv
Year: 2017
Subjects: subject: Machine Learning (stat.ML)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: The classification of time series data is a challenge common to all data-driven fields. However, there is no agreement about which are the most efficient techniques to group unlabeled time-ordered data. This is because a successful classification of time series patterns depends on the goal and the domain of interest, i.e. it is application-dependent. In this article, we study free-to-play game data. In this domain, clustering similar time series information is increasingly important due to the large amount of data collected by current mobile and web applications. We evaluate which methods cluster accurately time series of mobile games, focusing on player behavior data. We identify and validate several aspects of the clustering: the similarity measures and the representation techniques to reduce the high dimensionality of time series. As a robustness test, we compare various temporal datasets of player activity from two free-to-play video-games. With these techniques we extract temporal patterns of player behavior relevant for the evaluation of game events and game-business diagnosis. Our experiments provide intuitive visualizations to validate the results of the clustering and to determine the optimal number of clusters. Additionally, we assess the common characteristics of the players belonging to the same group. This study allows us to improve the understanding of player dynamics and churn behavior.
title: Lexical elicitations on the theme of clothing, jewelry, food
Creators: name: Fily, Maxime
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Lataddi Narua
subject: nru

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
description: Using photos, the interviewer asks the names of food items, cooking techniques, clothes-related lexicon and weaving techniques
Front Form Spinors in Weinberg-Soper Formalism and Melosh Transformations for any Spin
Creators: name: Ahluwalia, D. V.
name: Sawicki, Mikolaj
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using the Weinberg-Soper formalism we construct the front form $(j,0)\oplus(0,j)$ spinors. Explicit expressions for the generalised Melosh transformations up to spin two are obtained. The formalism, without explicitly invoking any wave equations, reproduces spin one half front-form results of Melosh, Lepage and Brodsky, and Dziembowski.
description: 16 Pages, RevTex. We continue to receive reprint requests for this paper. So we now archive it here
Detection of interstellar CH_3
Creators: name: Feuchtgruber, H.
name: Helmich, F. P.
name: van Dishoeck, E. F.
name: Wright, C. M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Observations with the Short Wavelength Spectrometer (SWS) onboard the {\it Infrared Space Observatory} (ISO) have led to the first detection of the methyl radical ${\rm CH_3}$ in the interstellar medium. The $ν_2$ $Q-$branch at 16.5 $μ$m and the $R$(0) line at 16.0 $μ$m have been unambiguously detected toward the Galactic center SgrA$^*$. The analysis of the measured bands gives a column density of (8.0$\pm$2.4)$\times10^{14}$ cm$^{-2}$ and an excitation temperature of $(17\pm 2)$ K. Gaseous ${\rm CO}$ at a similarly low excitation temperature and ${\rm C_2H_2}$ are detected for the same line of sight. Using constraints on the ${\rm H_2}$ column density obtained from ${\rm C^{18}O}$ and visual extinction, the inferred ${\rm CH_3}$ abundance is $(1.3{{+2.2}\atop{-0.7}}) \times 10^{-8}$. The chemically related ${\rm CH_4}$ molecule is not detected, but the pure rotational lines of ${\rm CH}$ are seen with the Long Wavelength Spectrometer (LWS). The absolute abundances and the ${\rm CH_3/CH_4}$ and ${\rm CH_3/CH}$ ratios are inconsistent with published pure gas-phase models of dense clouds. The data require a mix of diffuse and translucent clouds with different densities and extinctions, and/or the development of translucent models in which gas-grain chemistry, freeze-out and reactions of ${\rm H}$ with polycyclic aromatic hydrocarbons and solid aliphatic material are included.
description: 2 figures. ApJL, Accepted
"DYSTOPIAN LITERATURE AND ITS MAIN CHARACTERISTICS, GENRE, MOVEMNENT, TENDENCY AND STYLE"
Creators: name: Murotaliyeva, Maftuna
name: Ruzmatova, Dilnoza
Publisher: name: Zenodo
Year: 2024

description: The distinctions between utopia, dystopia, and anti-utopia delves into the nuanced realms of speculative fiction, philosophy, and political theory, illuminating the unique characteristics and implications of each concept. Utopia, derived from Sir Thomas More's eponymous work, represents an idealized society where social harmony, economic prosperity, and political stability culminate in the perfect human condition, often serving as a critique of contemporary society's failings.
What pushes their buttons? Predicting comment polarity from the content of political blog posts
Creators: name: Ramnath  Balasubramanyan
name: Cohen, William W.
name: Pierce, Douglas
name: Redlawsk, David P.
Publisher: name: Carnegie Mellon University
Year: 2011
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: Political blogs as a form of social media allow for an uniquely interactive form of political discourse. This is especially evident in focused blogs with a strong ideological identity. We investigate techniques to identify topics within the context of the community, which when discussed in a blog post evoke a discernible positive or negative collective opinion from readers who respond to posts in comments. This is done by using computational methods to assign sentiment polarity to blog comments and learning community specific models that summarize issues tackled by blogs and predict the polarity based on the topics discussed in a blog pos
Electrodynamics of Nearly-Ferroelectric Superconductors
Creators: name: Birman, Joseph L.
name: Zimbovskaya, Natalya A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We report here the frequency-dependent optical response of a nearly ferroelectric superconductor (NFE-SC), like Na$_{x}$WO$_3$, or n-SrTiO$_3$. From $ω=0$, up to a critical frequency $ ω_{c1}$, Meissner-like field extinction occurs as in a usual superconductor. In the "anomalous" region $ω_{c1}ω_{TO}$ Meissner damping recurrs, then at higher $ω$, dielectriclike propagation is found. New optical anomalies (peaks in transmission) are predicted for a film of NFE-SC below the soft mode frequency $ω_{TO}$. These effects are due to including the contribution of the NFE displacement current in the solution of the coupled Maxwell, lattice and London equations. Quantitative calculations are given for the NFE-SC n-SrTiO$_3 $ to illustrate this.
description: 8 pages, 3 figures
Floquet theory of microwave absorption by an impurity in two dimensional electron gas
Creators: name: Chepelianskii, A. D.
name: Shepelyansky, D. L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the dynamics of a two-dimensional electron gas (2DEG) under circular polarized microwave radiation in presence of dilute localized impurities. Inspired by recent developments on Floquet topological insulators we obtain the Floquet wavefunctions of this system which allow us to predict the microwave absorption and charge density responses of the electron gas, we demonstrate how these properties can be understood from the underlying semiclassical dynamics even for impurities with a size of around a magnetic length. The charge density response takes the form of a rotating charge density vortex around the impurity that can lead to a significant renormalization of the external microwave field which becomes strongly inhomogeneous on the scale of a cyclotron radius around the impurity. We show that this in-homogeneity can suppress the circular polarization dependence which is theoretically expected for MIRO but which was not observed in MIRO experiments on semiconducting 2DEGs. Our explanation, for this so far unexplained polarization independence, has close similarities with the Azbel'-Kaner effect in metals where the interaction length between the microwave field and conduction electrons is much smaller than the cyclotron radius due to skin effect generating harmonics of the cyclotron resonance.
MOESM1 of Promoter engineering enables overproduction of foreign proteins from a single copy expression cassette in Bacillus subtilis
Creators: name: Zhou, Chaoyang
name: Ye, Bin
name: Cheng, Shan
name: Zhao, Leizhen
name: Liu, Yuanxin
name: Jiang, Jiandong
name: Yan, Xin
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Fig. S1–S2 The expression pattern of BgaB in mutant strains with different promoters. Fig. S3–S4 The expression pattern of BgaB controlled by mutant Pylb. Fig. S5-S6 The expression pattern of BgaB controlled by mutant P3510. Fig. S7–S8 The expression pattern of sfGFP in mutant strains. Fig. S9–S10 The control of MPH (a) and Chd (b) expression in strain WB800. Fig. S11 Purification of BgaB and sfGFP. Fig. S12 Purification of MPH and Chd. Fig. S13 Verification of BgaB, sfGFP, MPH and Chd by western blot. Fig. S14-S16 The kinetics of bacterial growth. Fig. S17 The kinetic model for BgaB production in mutant strains. Table S1 Primers used in this study. Table S2 the parameters in the kinetics of bacterial growth. Table S3 the parameters in the kinetics of BgaB production.
Eigenvalue fluctuations for lattice Anderson Hamiltonians
Creators: name: Biskup, Marek
name: Fukushima, Ryoki
name: König, Wolfgang
Publisher: name: Weierstrass Institute
Year: 2014
Subjects: subject: Anderson model
subject: spectra of random operators
subject: central limit theorem
subject: 60F05
subject: 82B44
subject: 60H25

description: We consider the random Schrödinger operator on a large box in the lattice with a large prefactor in front of the Laplacian part of the operator, which is proportional to the square of the diameter of the box. The random potential is assumed to be independent and bounded; its expectation function and variance function is given in terms of continuous bounded functions on the rescaled box. Our main result is a multivariate central limit theorem for all the simple eigenvalues of this operator, after centering and rescaling. The limiting covariances are expressed in terms of the limiting homogenized eigenvalue problem; more precisely, they are equal to the integral of the product of the squares of the eigenfunctions of that problem times the variance function.
Wide-field imaging at mid infrared wavelengths: reconstruction of chopped and nodded data
Creators: name: Bertero, M.
name: Boccacci, P.
name: Robberto, M.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Ground-based astronomical observations at thermal infrared wavelengths face the problem of extracting the weak astronomical signal from the large and rapidly variable background flux. The observing strategy most commonly used, the so-called ``chopping and nodding'' differential technique, provides reliable representations of the target uniquely in the case of compact sources while extended and complex sources can be easily distorted by their negative counterparts. A restoration method, designed to remove the negative values and to provide reliable representations of extended sources has been proposed. We show that the algorithm successfully removes the distortions due to the negative counterparts and, in addition, provides noise reduction.
description: 29 pages, 14 figures, submitted to PASP
Towards a population synthesis model of self-gravitating disc fragmentation and tidal downsizing II: The effect of fragment-fragment interactions
Creators: name: Forgan, D. H.
name: Hall, C.
name: Meru, F.
name: Rice, W. K. M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: It is likely that most protostellar systems undergo a brief phase where the protostellar disc is self-gravitating. If these discs are prone to fragmentation, then they are able to rapidly form objects that are initially of several Jupiter masses and larger. The fate of these disc fragments (and the fate of planetary bodies formed afterwards via core accretion) depends sensitively not only on the fragment's interaction with the disc, but with its neighbouring fragments. We return to and revise our population synthesis model of self-gravitating disc fragmentation and tidal downsizing. Amongst other improvements, the model now directly incorporates fragment-fragment interactions while the disc is still present. We find that fragment-fragment scattering dominates the orbital evolution, even when we enforce rapid migration and inefficient gap formation. Compared to our previous model, we see a small increase in the number of terrestrial-type objects being formed, although their survival under tidal evolution is at best unclear. We also see evidence for disrupted fragments with evolved grain populations - this is circumstantial evidence for the formation of planetesimal belts, a phenomenon not seen in runs where fragment-fragment interactions are ignored. In spite of intense dynamical evolution, our population is dominated by massive giant planets and brown dwarfs at large semimajor axis, which direct imaging surveys should, but only rarely, detect. Finally, disc fragmentation is shown to be an efficient manufacturer of free floating planetary mass objects, and the typical multiplicity of systems formed via gravitational instability will be low.
description: 14 pages, 17 figures, accepted for publication in MNRAS
Asymptotic Form of Gopakumar-Vafa Invariants from Instanton Counting
Creators: name: Konishi, Yukiko
name: Sakai, Kazuhiro
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study the asymptotic form of the Gopakumar-Vafa invariants at all genera for Calabi-Yau toric threefolds which have the structure of fibration of the A_n singularity over P^1. We claim that the asymptotic form is the inverse Laplace transform of the corresponding instanton amplitude in the prepotential of N=2 SU(n+1) gauge theory coupled to external graviphoton fields, which is given by the logarithm of the Nekrasov's partition function.
description: 22 pages, 2 figures; (v2) typos corrected
Optimal control of multiphase steel production
Creators: name: Hömberg, Dietmar
name: Krumbiegel, Klaus
name: Togobytska, Nataliya
Publisher: name: Weierstrass Institute
Year: 2014
Subjects: subject: hot rolling
subject: dual phase steels
subject: optimal contro
subject: 35K05
subject: 49M37
subject: 49N90

description: An optimal control problem for the production of multiphase steel is investigated, where the state equations are a semilinear heat equation and an ordinary differential equation, which describes the evolution of the ferrite phase fraction. The optimal control problem is analyzed and the first-order necessary and second-order sufficient optimality conditions are derived. For the numerical solution of the control problem reduced sequential quadratic programming (rSQP) method with a primal-dual active set strategy (PDAS) was applied. The numerical results were presented for the optimal control of a cooling line for production of hot rolled Mo-Mn dual phase steel.
title: Lexical elicitations on the theme of the village, house construction and furbishing
Creators: name: Fily, Maxime
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Lataddi Narua
subject: nru

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
description: Using photos, the interviewer asks for the names of places around the house (garden, fields, etc.), house items and construction material
Correcting coherent errors with surface codes
Creators: name: Bravyi, Sergey
name: Englbrecht, Matthias
name: Koenig, Robert
name: Peard, Nolan
Publisher: name: arXiv
Year: 2017
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We study how well topological quantum codes can tolerate coherent noise caused by systematic unitary errors such as unwanted $Z$-rotations. Our main result is an efficient algorithm for simulating quantum error correction protocols based on the 2D surface code in the presence of coherent errors. The algorithm has runtime $O(n^2)$, where $n$ is the number of physical qubits. It allows us to simulate systems with more than one thousand qubits and obtain the first error threshold estimates for several toy models of coherent noise. Numerical results are reported for storage of logical states subject to $Z$-rotation errors and for logical state preparation with general $SU(2)$ errors. We observe that for large code distances the effective logical-level noise is well-approximated by random Pauli errors even though the physical-level noise is coherent. Our algorithm works by mapping the surface code to a system of Majorana fermions.
description: 18 pages, 14 figures
Anisotropic states of two-dimensional electrons in high magnetic fields
Creators: name: Ettouhami, A. M.
name: Doiron, C. B.
name: Klironomos, F. D.
name: Côté, R.
name: Dorsey, Alan T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the collective states formed by two-dimensional electrons in Landau levels of index $n\ge 2$ near half-filling. By numerically solving the self-consistent Hartree-Fock (HF) equations for a set of oblique two-dimensional lattices, we find that the stripe state is an anisotropic Wigner crystal (AWC), and determine its precise structure for varying values of the filling factor. Calculating the elastic energy, we find that the shear modulus of the AWC is small but finite (nonzero) within the HF approximation. This implies, in particular, that the long-wavelength magnetophonon mode in the stripe state vanishes like $q^{3/2}$ as in an ordinary Wigner crystal, and not like $q^{5/2}$ as was found in previous studies where the energy of shear deformations was neglected.
description: minor corrections; 5 pages, 4 figures; version to be published in Physical Review Letters
On the origin of O$_2$ and other volatile species in comets
Creators: name: Taquet, Vianney
name: Furuya, Kenji
name: Walsh, Catherine
name: van Dishoeck, Ewine F.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Molecular oxygen, O$_2$, was recently detected in comet 67P by the ROSINA instrument on board the Rosetta spacecraft with a surprisingly high abundance of 4 % relative to H$_2$O, making O$_2$ the fourth most abundant in comet 67P. Other volatile species with similar volatility, such as molecular nitrogen N$_2$, were also detected by Rosetta, but with much lower abundances and much weaker correlations with water. Here, we investigate the chemical and physical origin of O$_2$ and other volatile species using the new constraints provided by Rosetta. We follow the chemical evolution during star formation with state-of-the-art astrochemical models applied to dynamical physical models by considering three origins: i) in dark clouds, ii) during forming protostellar disks, and iii) during luminosity outbursts in disks. The models presented here favour a dark cloud (or "primordial") grain surface chemistry origin for volatile species in comets, albeit for dark clouds which are slightly warmer and denser than those usually considered as solar system progenitors.
description: To appear in "Astrochemistry VII -- Through the Cosmos from Galaxies to Planets", proceedings of the IAU Symposium No. 332, 2017, Puerto Varas, Chile. M. Cunningham, T. Millar and Y. Aikawa, eds. (9 pages, 2 figures)
Higher-quality tetrahedral mesh generation for domains with small angles by constrained Delaunay refinement
Creators: name: Shewchuk, Jonathan Richard
name: Si, Hang
Publisher: name: Weierstrass Institute
Year: 2014
Subjects: subject: constrained Delaunay triangulation
subject: Delaunay refinement algorithm
subject: tetrahedral mesh generation
subject: computational geometry
subject: 65M50
subject: 65N50
subject: 65D18

description: Algorithms for generating Delaunay tetrahedral meshes have difficulty with domains whose boundary polygons meet at small angles. The requirement that all tetrahedra be Delaunay often forces mesh generators to overrefine near small domain angles---that is, to produce too many tetrahedra, making them too small. We describe a provably good algorithm that generates meshes that are constrained Delaunay triangulations, rather than purely Delaunay. Given a piecewise linear domain free of small angles, our algorithm is guaranteed to construct a mesh in which every tetrahedron has a radius-edge ratio of $2 sqrt2 / 3 doteq 1.63$ or better. This is a substantial improvement over the usual bound of $2$; it is obtained by relaxing the conditions in which boundary triangles are subdivided. Given a domain with small angles, our algorithm produces a mesh in which the quality guarantee is compromised only in specific places near small domain angles. We prove that most mesh edges have lengths proportional to the domain's minimum local feature size; the exceptions span small domain angles. Our algorithm tends to generate meshes with fewer tetrahedra than purely Delaunay methods because it uses the constrained Delaunay property, rather than vertex insertions, to enforce the conformity of the mesh to the domain boundaries. An implementation demonstrates that our algorithm does not overrefine near small domain angles.
Pure Spin Current Injection in Hydrogenated Graphene Structures
Creators: name: Zapata-Peña, Reinaldo
name: Mendoza, Bernardo S.
name: Shkrebtii, Anatoli I.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We present a theoretical study of spin-velocity injection (SVI) of a pure spin current (PSC) induced by a linearly polarized light that impinges normally on the surface of two 50\% hydrogenated noncentrosymmetric two-dimensional (2D) graphene structures. The first structure, hydrogenated at only one side, labeled Up, also known as graphone, and the second, labelled Alt, is 25\% hydrogenated at both sides. The hydrogenation opens an energy gap in both structures. We analyze two possibilities: in the first, the spin is fixed along a chosen direction, and the resulting SVI is calculated; in the second, we choose the SVI direction along the surface plane, and calculate the resulting spin orientation. This is done by changing the energy $\hbarω$ and polarization angle $α$ of the incoming light. The results are calculated within a full electronic band structure scheme using the Density Functional Theory (DFT) in the Local Density Approximation (LDA). The maxima of the spin-velocities are reached when $\hbarω=0.084$\,eV and $α=35^\circ$ for the Up structure, and $\hbarω=0.720$\,eV and $α=150^\circ$ for the Alt geometry. We find a speed of 668\,Km/s and 645\,Km/s for the Up and the Alt structures, respectively, when the spin points perpendicularly to the surface. Also, the response is maximized by fixing the spin-velocity direction along a high symmetry axis, obtaining a speed of 688Km/s with the spin pointing at $13^\circ$ from the surface normal, for the Up, and 906 Km/s and the spin pointing at $60^\circ$ from the surface normal, for the Alt system. These speed values are of order of magnitude larger than those of bulk semiconductors, such as CdSe and GaAs, thus making the hydrogenated graphene structures excellent candidates for spintronics applications.
description: 22 pages, 10 figures, submitted to Physical Review B
Classical electromagnetic potential as a part of gravitational connection: ideas and history
Creators: name: Kharuk, N. V.
name: Paston, S. A.
name: Sheykin, A. A.
Publisher: name: arXiv
Year: 2017
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: We consider a natural form of unified theory of gravity and electromagnetism which was somehow missed at the time of intense search for such an unification, and was noticed only in 1978 but remained quite unknown. The basic idea of this unification is to use the metric and non-symmetric connection as independent variables, which generalizes the so-called Palatini formalism. The certain components of connection in the appearing theory can be naturally identified with electromagnetic potential, and with the proper choice of action the Einstein-Maxwell equations are reproducing. In this paper we compare such an approach with the known ideas of unification. Also we propose the more consistent way of including matter (in the form of classical particles) in the theory and briefly discuss the perspectives of further development of this approach.
description: LaTeX, 17 pages
Weakly Supervised Training of Semantic Parsers
Creators: name: Jayant  Krishnamurthy
name: Mitchell, Tom
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: We present a method for training a semantic parser using only a knowledge base and an unlabeled text corpus, without any individually annotated sentences. Our key observation is that multiple forms of weak supervision can be combined to train an accurate semantic parser: semantic supervision from a knowledge base, and syntactic supervision from dependencyparsed sentences. We apply our approach to train a semantic parser that uses 77 relations from Freebase in its knowledge representation. This semantic parser extracts instances of binary relations with state-of-the art accuracy, while simultaneously recovering much richer semantic structures, such as conjunctions of multiple relations with partially shared arguments. We demonstrate recovery of this richer structure by extracting logical forms from natural language queries against Freebase. On this task, the trained semantic parser achieves 80% precision and 56% recall, despite never having seen an annotated logical form.
Thermonuclear burst oscillations and the dense matter equation of state
Creators: name: Watts, Anna L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Matter in neutron star cores reaches extremely high densities, forming states of matter that cannot be generated in the laboratory. The Equation of State (EOS) of the matter links to macroscopic observables, such as mass M and radius R, via the stellar structure equations. A promising technique for measuring M and R exploits hotspots (burst oscillations) that form on the stellar surface when material accreted from a companion star undergoes a thermonuclear explosion. As the star rotates, the hotspot gives rise to a pulsation, and relativistic effects encode information about M and R into the pulse profile. However the burst oscillation mechanism remains unknown, introducing uncertainty when inferring the EOS. I review the progress that we are making towards cracking this long-standing problem, and establishing burst oscillations as a robust tool for measuring M and R. This is a major goal for future large area X-ray telescopes.
description: 4 pages, 2 figures, to appear in the proceedings of "IAUS 337: Pulsar Astrophysics - The Next 50 Years" eds: P. Weltevrede, B.B.P. Perera, L. Levin Preston & S. Sanidas
title: consent form and data collection tools for Compliance with national safety standards and associated factors among welders in Kampala district, Uganda.
title: quantitative tool
titleType: AlternativeTitle
title: qualitative tool
titleType: AlternativeTitle
title: consent form
titleType: AlternativeTitle
Creators: name: Sekabojja, Daniel
Publisher: name: Zenodo
Year: 2024

description: The upload contains three documents used in data collection for a study entitled: Compliance with national safety standards and associated factors among welders in Kampala district, Uganda.

The three documents include the consent form, quantitative and qualitative data collection tools.
title: Numbers in association with people + Classifier (v̩˥ or kv̩˥)
Creators: name: Fily, Maxime
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Lataddi Narua
subject: nru

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
description: Numbers are collected by enumerating people, in the frame sentence 'people NUM CLF'. Numbers from 1 to 23, then tens, hundreds, thousands
Bethe-Salpeter Amplitudes and Static Properties of the Deuteron
Creators: name: Kaptari, L. P.
name: Umnikov, A. Yu.
name: Bondarenko, S. G.
name: Kazakov, K. Yu.
name: Khanna, F. C.
name: Kaempfer, B.
Publisher: name: arXiv
Year: 1996
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Extended calculations of the deuteron's static properties, based on the numerical solution of the Bethe-Salpeter equation, are presented. A formalism is developed, which provides a comparative analysis of the covariant amplitudes in various representations and nonrelativistic wave functions. The magnetic and quadrupole moments of the deuteron are calculated in the Bethe-Salpeter formalism and the role of relativistic corrections is discussed.
description: 33 pages ([aps]{revtex} style), 9 Postscript figures; (55 pages if [preprint,aps]{revtex} style is used)
Additional file 1: of Impact of weekly case-based tele-education on quality of care in a limited resource medical intensive care unit
Creators: name: Kovacevic, Pedja
name: Dragic, Sasa
name: Kovacevic, Tijana
name: Momcicevic, Danica
name: Festic, Emir
name: Kashyap, Rahul
name: Niven, Alexander
name: Dong, Yue
name: Gajic, Ognjen
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Plant Biology

description: Table S1. Granular data pertinent to changes in practice before and after tele-education intervention. Table S2. Multivariate linear regression for length of stay in the ICU. Table S3. Multivariate linear regression for length of stay in the hospital. Table S4. Multivariate linear regression for length of stay in the hospital. (DOCX 18 kb)
Very Fast Similarity Queries on Semi-Structured Data from the Web
Creators: name: Dalvi, Bhavana
name: Cohen, William W.
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: In this paper, we propose a single low-dimensional representation for entities found in different datasets on the web. Our proposed PIC-D embeddings can represent large D-partite graphs using small number of dimensions enabling fast similarity queries. Our experiments show that this representation can be constructed in small amount of time (linear in number of dimensions). We demonstrate how it can be used for variety of similarity queries like set expansion, automatic set instance acquisition, and column classification. Our approach results in comparable precision with respect to task specific baselines and up to two orders of magnitude improvement in terms of query response time.
On the evolution by fractional mean curvature
Creators: name: Sáez, Mariel
name: Valdinoci, Enrico
Publisher: name: Weierstrass Institute
Year: 2015
Subjects: subject: nonlocal mean curvature
subject: geometric motions
subject: evolving surfaces
subject: 35R11
subject: 35K93
subject: 53A10

description: In this paper we study smooth solutions to a fractional mean curvature flow equation. We establish a comparison principle and consequences such as uniqueness and finite extinction time for compact solutions. We also establish evolutions equations for fractional geometric quantities that yield preservation of certain quantities (such as positive fractional curvature) and smoothness of graphical evolutions.
High redshift radio galaxies
Creators: name: Fosbury, R. A. E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: There is considerable evidence that powerful radio quasars and radio galaxies are orientation-dependent manifestations of the same parent population: massive spheroids containing correspondingly massive black holes. Following the recognition of this unification, research is directed to the task of elucidating the structure and composition of the active nuclei and their hosts to understand the formation and evolution of what we expect to become the most massive of galaxies. In contrast to the quasars, where the nucleus can outshine the galaxy at optical/near infrared wavelengths by a large factor, the radio galaxies contain a 'built-in coronograph' that obscures our direct view to the nucleus. These objects present our best opportunity to study the host galaxy in detail. Of particular interest are those sources with redshifts greater than about 2 that represent an epoch when nuclear activity was much more common that it is now and when we believe these objects were in the process of assembly. In combination with high resolution imaging from space (HST), optical spectropolarimetry with Keck II allows us to clearly separate the scattered nuclear radiation from the stellar and gaseous emission from the host galaxy. The rest-frame ultraviolet emission line spectra suggest that rapid chemical evolution is occurring at this epoch. Near infrared spectroscopy with the VLT is giving us access to both the lines and continuum in the rest-frame optical spectrum, allowing investigations of the evolved stellar population and extending the composition analysis with measurements of the familiar forbidden-line spectrum.
description: 7 pages including 2 figures. Paper no. 4005-10 in the proceedings of the SPIE International Symposium on 'Astronomical Telescopes and Instrumentation' held in Munich, Germany from 27-31 March 2000
Non-Rotating BTZ Black Hole Area Spectrum from Quasi-normal Modes
Creators: name: Setare, M. R.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, by using the quasi-normal frequencies for non-rotating BTZ black hole derived by Cardos and Lemos, also via Bohr-Sommerfeld quantization for an adiabatic invariant, $I=\int {dE\over ω(E)}$, which $E$ is the energy of system and $ω(E)$ is vibrational frequency, we leads to an equally spaced mass spectrum. The result for the area of event horizon is $A_{n}=2π\sqrt{\frac{nm \hbar}Λ}$ which is not equally spaced, in contrast with area spectrum of black hole in higher dimension.
description: 7 pages, no figure, some refs added, clarifying comments added, no physics changed, version to appear in Class. Quant. Grav
title: Lexical elicitations on the theme of colors, kinship, abstract verbs (want, seek, like)
Creators: name: Fily, Maxime
Publisher: name: COCOON - https://cocoon.huma-num.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2022
Subjects: subject: Lataddi Narua
subject: nru

description: Conforms to: doi:10.34847/cocoon.49aefa90-8c1f-3ba8-a099-0ebefc6a2aa7
description: Using photos, the interviewer asks colors, kinship terms, hunting, gathering terms, abstract verbs
On the evolutionary Gamma-convergence of gradient systems modeling slow and fast chemical reactions
Creators: name: Disser, Karoline
name: Liero, Matthias
name: Zinsl, Jonathan
Publisher: name: Weierstrass Institute
Year: 2016
Subjects: subject: Gradient systems
subject: mass-action law
subject: dissipation potential
subject: energy dissipation balance
subject: multiscale evolution problems
subject: reversible reaction kinetics
subject: Gamma-convergence
subject: 34E15
subject: 49J40
subject: 49J45
subject: 80A30
subject: 92E20

description: We investigate the limit passage for a system of ordinary differential equations modeling slow and fast chemical reaction of mass-action type, where the rates of fast reactions tend to infinity. We give an elementary proof of convergence to a reduced dynamical system acting in the slow reaction directions on the manifold of fast reaction equilibria. Then we study the entropic gradient structure of these systems and prove an E-convergence result via Γ-convergence of the primary and dual dissipation potentials, which shows that this structure carries over to the fast reaction limit. We recover the limit dynamics as a gradient flow of the entropy with respect to a pseudo-metric.
Understanding the Interaction between Interests, Conversations and Friendships in Facebook
Creators: name: Qirong  Ho
name: Yan, Rong
name: Rajat  Raina
name: Xing, Eric P
Publisher: name: Carnegie Mellon University
Year: 2012
Subjects: subject: 170203 Knowledge Representation and Machine Learning
subject: FOS: Psychology

description: In this paper, we explore salient questions about user interests, conversations and friendships in the Facebook social network, using a novel latent space model that integrates several data types. A key challenge of studying Facebook’s data is the wide range of data modalities such as text, network links, and categorical labels. Our latent space model seamlessly combines all three data modalities over millions of users, allowing us to study the interplay between user friendships, interests, and higher-order network-wide social trends on Facebook. The recovered insights not only answer our initial questions, but also reveal surprising facts about user interests in the context of Facebook’s ecosystem. We also confirm that our results are significant with respect to evidential information from the study subjects.
Global existence results for viscoplasticity at finite strain
Creators: name: Mielke, Alexander
name: Rossi, Riccarda
name: Savaré, Giuseppe
Publisher: name: Weierstrass Institute
Year: 2016
Subjects: subject: Viscoplasticity
subject: gradient plasticity with hardening
subject: multiplicative decomposition
subject: energy-dissipation principle for
subject: generalized metric gradient systems
subject: left-invariant dissipation potential
subject: non-convex energy functional
subject: 74C20
subject: 74H20
subject: 35Q74
subject: 49S05

description: We study a model for rate-dependent gradient plasticity at finite strain based on the multiplicative decomposition of the strain tensor, and investigate the existence of global-in-time solutions to the related PDE system. We reveal its underlying structure as a generalized gradient system, where the driving energy functional is highly nonconvex and features the geometric nonlinearities related to finite-strain elasticity as well as the multiplicative decomposition of finite-strain plasticity. Moreover, the dissipation potential depends on the left-invariant plastic rate and thus, depends on the plastic state variable.
 The existence theory is developed for a class of abstract, nonsmooth, and nonconvex gradient systems, for which we introduce suitable notions of solutions, namely energy-dissipation-balance (EDB) and energy-dissipation-inequality (EDI) solutions. Hence, we resort to the toolbox of the direct method of the calculus of variations to check that the specific energy and dissipation functionals for our viscoplastic models comply with the conditions of the general theory.
The jamming surface of granular matter determined from soil mechanics results
Creators: name: Evesque, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Classical soil mechanics results are used to propose the equation of the jamming transition surface in the (stress, specific volume) space. Taking axis-ymmetric conditions, labelling q the deviatoric stress and p' the mean pressure applied on the granular skeleton, and considering normal range of pressure (10 kPa-10MPa) the equation of the surface of jamming transition is v = vo-m ln(p'/p'o)+ md ln(1+q q/(M' M' p' p')); M' is related to the friction angle, m and md are two constants which depend on soil characteristics; p'o is a "unit" pressure.
description: 2 pages + 1 page, 0 figure