cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Planification intersectorielle de la transition vers le préscolaire : regard sur les savoirs en partage, Revue international de communication et de socialistion,1(1), 65-81
Creators: name: Ruel, Julie
name: Moreau, André C.
name: April, Johanne
Publisher: name: figshare
Year: 2020
Subjects: Education

description: La première rentrée scolaire constitue un défi, tant pour les enfants ayant des besoins particuliers, leurs parents, les différents intervenants qui les entourent, dont ceux des milieux scolaires qui les accueillent. Cet article présente les résultats d'une recherche doctorale ayant documenté les savoirs qui sont en partage lorsque des acteurs intersectoriels, incluant les parents, planifient ensemble cette transition. Les résultats permettent d'identifier les objets, les porteurs, le type de savoirs en partage, ainsi que leurs retombées. Les résultats suggèrent que, lorsque les conditions le favorisent, les acteurs profitent des savoirs disponibles qui circulent entre eux. Cette source de richesse les invite à connaître ce qui fonctionne et à chercher des solutions novatrices aux problématiques complexes auxquelles ils sont confrontés. Les savoirs en partage favorisent des savoirs contextualisés et le développement de rapports nouveaux en contexte de travail intersectoriel.
Inter-edge strong-to-weak scattering evolution at a constriction in the fractional quantum Hall regime
Creators: name: Roddaro, Stefano
name: Pellegrini, Vittorio
name: Beltram, Fabio
name: Biasiol, Giorgio
name: Sorba, Lucia
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Gate-voltage control of inter-edge tunneling at a split-gate constriction in the fractional quantum Hall regime is reported. Quantitative agreement with the behavior predicted for out-of-equilibrium quasiparticle transport between chiral Luttinger liquids is shown at low temperatures at specific values of the backscattering strength. When the latter is lowered by changing the gate voltage the zero-bias peak of the tunneling conductance evolves into a minimum and a non-linear quasihole-like characteristic emerges. Our analysis emphasizes the role of the local filling factor in the split-gate constriction region.
description: 4 pages, 4 figures
Fault tolerant quantum key distribution protocol with collective random unitary noise
Creators: name: Wang, X. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose an easy implementable prepare-and-measure protocol for robust quantum key distribution with photon polarization. The protocol is fault tolerant against collective random unitary channel noise. The protocol does not need any collective quantum measurement or quantum memory. A security proof and a specific linear optical realization using spontaneous parametric down conversion are given.
description: Accepted by PRA as a Rapid Communication
Total eclipse spectroscopy of visible light coronal emission lines
Creators: name: Muro, Gabriel
name: Morgan, Huw
Publisher: name: Zenodo
Year: 2020

description: Currently a missing link in solar physics, the region ~1.2 to 2.5 solar radii is a difficult area to observe due to various technological limitations of both ground and space-based instruments. Thus, observations of narrow-band visible light spectral data from the 2 July 2019 at 20:40 UTC total solar eclipse in Rodeo, Argentina provides a rare opportunity to diagnose the low atmosphere. The data was gathered as three narrow bands of visible light centered on emission lines of ionized Fe atoms. Respectively, they represent the temperature range common in the low solar atmosphere: Fe X (0.9 MK), Fe XI (1.3 MK), and Fe XIV (1.9 MK). These measurements will eventually allow for the creation of an accurate temperature map which will reveal a deeper understanding of the physics involved in various atmospheric phenomena. The work presented here describes the spectroscopic data reduction process, as well as preliminary diagnostics of temperature, and relative ionization state abundance. The high spectral resolution of the instrument allows a measurement of the Doppler shift of the extended corona due to solar rotation.
Robustagramma setituberosum Cui and Marshall 2005, new species
Creators: name: Marshall, Stephen A.
name: Cui, Yongsheng
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Sphaeroceridae
Robustagramma
Robustagramma setituberosum

description: Robustagramma setituberosum Cui and Marshall, new species
(Figs. 331–334)
 As described for Robstagramma flavistylum except as follows.
 Body length 2.2 mm. Face, gena and antenna reddish brown; lower frons reddish yellow. Interfrontal bristles in three or four pairs. Postvertical bristle slightly convergent. Eye height ca. 2.2 times genal height. Aristal hairs ca. 3 times as long as basal width of arista. Palpus thin, maximum palpal width ca. 1/6 of length of palpus. Preapical palpal bristles ca. 2.5 times as long as maximum width of palpus.
 Dorsocentral bristles in 2 postsutural pairs, anterior pair similar in length to middle prescutellar acrostichal bristle. One or 2 pairs of presutural dorsocentral setulae, slightly longer than acrostichal setulae. Acrostichal setulae in 6 irregular rows between anterior dorsocentral bristles. Posterodorsal katepisternal bristle two thirds as long as distance between bristle base and wing base. An additional small setula (at least one side) in front of anterodorsal katepisternal bristle. Length of second costal sector ca. 0.45X length of third. R 4+5 and costa ending together before wing apex. Discal cell with a stump vein CuA 1, ca. 3 vein widths. Mid tibia with a strong posterodorsal proximal bristle, an anterodorsal bristle at basal third, and 2 anterodorsal, a dorsal and a posterodorsal distally; dorsal bristle and the anterodorsal bristle before dorsal bristle very small. Mid femur with 3 anterior subapical bristles, a small posterodorsal apical, 2 rows of 12 ventral bristles, and several small anterovenrtal bristles on basal half.
 Terminalia: Sternite 5 nearly twice as long as sternite 4, with a transverse patch of scales on posteromadial margin. Dorsomedial length of epandrium ca. 0.3X length of sternite 8. Surstylus mainly setose, swollen in posterior view. Cercus slightly shorter than surstylus, distal half narrow in posteroventral view but broad in lateral view. Dorsal whip­like sclerites of distiphallus with very small nodes.
Holotype (♂, DEBU): BRAZIL: Paraná. Curitiba, 30 km SE BR277, dung trap, 6– 9.ii.1990, S.A. Marshall.
Etymology: The specific epithet refers to the setose and swollen surstylus of this species.
description: Published as part of Marshall, Stephen A. & Cui, Yongsheng, 2005, Systematics of Robustagramma, a new genus of New World Sphaeroceridae (Diptera), pp. 1-122 in Zootaxa 1026 (1) on pages 105-107, DOI: 10.11646/zootaxa.1026.1.1, http://zenodo.org/record/5049813
GRANULATED SLAG AND LIMESTONE FOR THE PREPARATION OF POZZOLANIC – FILLED CEMENT
Creators: name: Hussein, Mohamed Ahmed Ali
name: Ahmed, Hamdy El-Didamony
name: Helmy, Ivon Mohamed
name: Hosam Ibrahim El-Dosouky
Publisher: name: Zenodo
Year: 2008

description: the present work deals with the utilization of two by-products such as granulated slag and limestone in the preparation of pozzolanic filled cement. Pozzolanic cements with the two wastes were prepared at various proportions. The hydration characteristics and the physicochemical properties of the hardened pastes were studied up to 90 days of hydration. Also, the effect of fire on the hardened cement pastes is evaluated by the weight loss, compressive strength, bulk density, total porosity and free lime up to 800ºC for 2 hours. Some selected fired samples were investigated by XRD technique. Also, the hydration of cement pastes in fresh water was investigated using IR technique. The materials used in this investigation were ground granulated blast furnace slag (WCS), which provided from iron steel company; Helwan, Egypt, Limestone provided from Suez cement Company and ordinary Portland cement (OPC) from Suez cement Company. The dry constituents of OPC, WCS slag and LS were mechanically mixed for one hour in a porcelain ball mill using three balls to attain complete homogeneity then kept in airtight containers until the time of cement paste preparation. The hydration kinetics of pozzolanic – filled cement pastes were studied by the determination of the combined water contents as well as free lime. The physico-mechanical properties such as bulk density, total porosity and compressive strength of hydrated cement pastes up to 90 days were measured. Also, the water of consistency as well as setting times of each cement pastes was measured. To study the effect of fire, the pastes were kept 2 hours at 105, 250, 450, 600 and 800°C, then cooled to room temperature in the furnace. The cooled samples were covered with plastic film and kept into a desiccators in order to avoid the influence of humidity and the carbonization of thermally treated pastes.
Neutrino oscillations in gravitational waves
Creators: name: Dvornikov, Maxim
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study spin and flavor oscillations of neutrinos under the influence of gravitational waves (GWs). We rederive the quasiclassical equation for the evolution of the neutrino spin in various external fields in curved spacetime starting from the Dirac equation for a massive neutrino. Then, we consider neutrino spin oscillations in nonmoving and unpolarized matter, a transverse magnetic field, and a plane GW. We show that a parametric resonance can take place in this system. We also study neutrino flavor oscillations in GWs. The equation for the density matrix of flavor neutrinos is solved when we discuss the neutrino interaction with stochastic GWs emitted by coalescing supermassive black holes. We find the fluxes of cosmic neutrinos, undergoing flavor oscillations in such a gravitational background, which can be potentially measured by a terrestrial detector. Some astrophysical applications of our results are considered.
description: 6 pages, pdflatex, 4 pdf figures, J.Phys.Conf.Ser. LaTeX style; contribution to proceedings of DSPIN-2019 (JINR, Dubna, Russia, September 2-6 2019)
1000 x 20 x 800 point cloud prism
Creators: name: Shao, Xinyuan
Publisher: name: figshare
Year: 2022
Subjects: subject: 91001 CAD/CAM Systems
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Point cloud of a filled prism. The file contains the x, y and z coordinates of the points that form a prism of size 1000 x 20 x 800.

This point cloud can be used as a geometry input for the lattice Boltzmann solver GASCANS.
Konishi Anomaly and Chiral Gauge Theories
Creators: name: Argurio, Riccardo
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We begin with a brief introduction on N=1 gauge theories, focusing on the importance of the effective superpotential in light of the new techniques to compute it systematically. We then proceed to consider theories for which the Konishi anomaly proves to be enough to solve exactly for the effective superpotential. As an example we study a chiral SO(10) gauge theory, where we also discuss the occurrence of dynamical supersymmetry breaking.
description: 8 pages, contribution to the proceedings of the Johns Hopkins Workshop in Gothenburg, August 24-26, 2003, and of the RTN Workshop in Copenhagen, September 15-20, 2003
Method of image charges for describing linear deformation of bounded 2D solid structures with circular holes and inclusions
Creators: name: Sarkar, Siddhartha
name: Cebron, Matjaz
name: Brojan, Miha
name: Kosmrlj, Andrej
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a method for predicting the linear response deformation of finite and semi-infinite 2D solid structures with circular holes and inclusions by employing the analogies with image charges and induction in electrostatics. Charges in electrostatics induce image charges near conductive boundaries and an external electric field induces polarization (dipoles, quadrupoles, and other multipoles) of conductive and dielectric objects. Similarly, charges in elasticity induce image charges near boundaries and external stress induces polarization (quadrupoles and other multipoles) inside holes and inclusions. Stresses generated by these induced elastic multipoles as well as stresses generated by their images near boundaries then lead to interactions between holes and inclusions and with their images, which induce additional polarization and thus additional deformation of holes and inclusions. We present a method that expands induced polarization in a series of elastic multipoles, which systematically takes into account the interactions of inclusions and holes with the external field, between them, and with their images. The results of our method for linear deformation of circular holes and inclusions near straight and curved boundaries show good agreement with both linear finite element simulations and experiments.
description: 37 pages, 15 figures. arXiv admin note: text overlap with arXiv:1910.01632
Stop Motion: From Tradition to Innovation An Exploration of the Craft Technique in Animated Cinema
Creators: name: Science Step Journal
Publisher: name: Zenodo
Year: 2025
Subjects: subject: Cinematography
subject: Motion
subject: Narration
subject: ANIMATION

description: This paper explores Stop Motion as a unique animation technique, examining its technical, artistic, and cultural dimensions. What distinguishes Stop Motion is its distinctive visual texture, which imparts a tactile, organic quality in contrast to the smoother appearance of computer-generated animation. The process, involving the frame-by-frame manipulation of puppets and sets, gives the technique an authenticity that digital methods often cannot match. The article also investigates the artistic impact of Stop Motion, focusing on its narrative depth and emotional resonance. Through examples such as Coraline (2009), The Nightmare Before Christmas (1993), and Kubo and the Two Strings (2016), this study demonstrates how the technique fosters emotional engagement, establishing a strong sensory connection between the viewer and the film. This emotional depth is especially heightened by the artisanal nature of Stop Motion, where each movement carries the artist’s intentionality. Moreover, the paper addresses the cultural significance of Stop Motion, noting its role in preserving and transmitting stories rooted in particular cultural traditions, while also appealing to a global audience. In this way, Stop Motion serves as a means of cultural preservation, conveying universal themes while respecting the authenticity of traditional narratives. Ultimately, the study concludes that Stop Motion is a timeless art form that resists technological obsolescence, continuing to provide a meaningful and impactful artistic alternative in the animation industry
Deep Static Modeling of invokedynamic
Creators: name: Fourtounis, George
name: Smaragdakis, Yannis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: FOS: Computer and information sciences
subject: F.3.2

description: Java 7 introduced programmable dynamic linking in the form of the invokedynamic framework. Static analysis of code containing programmable dynamic linking has often been cited as a significant source of unsoundness in the analysis of Java programs. For example, Java lambdas, introduced in Java 8, are a very popular feature, which is, however, resistant to static analysis, since it mixes invokedynamic with dynamic code generation. These techniques invalidate static analysis assumptions: programmable linking breaks reasoning about method resolution while dynamically generated code is, by definition, not available statically. In this paper, we show that a static analysis can predictively model uses of invokedynamic while also cooperating with extra rules to handle the runtime code generation of lambdas. Our approach plugs into an existing static analysis and helps eliminate all unsoundness in the handling of lambdas (including associated features such as method references) and generic invokedynamic uses. We evaluate our technique on a benchmark suite of our own and on third-party benchmarks, uncovering all code previously unreachable due to unsoundness, highly efficiently.
Hylettus magnus Monne 1988
Creators: name: Monné, Miguel A.
Publisher: name: Zenodo
Year: 2005
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cerambycidae
Hylettus
Hylettus magnus

description: 7. Hylettus magnus Monné, 1988
Type locality — Brazil, Mato Grosso: Vera (12°46S, 55°36W). (MNRJ). Distribution — Brazil (Rondônia, Mato Grosso).
 Hylettus magnus Monné, 1988: 129, fig. 8; Julio et al., 2000: 37 (holotype).
description: Published as part of Monné, Miguel A., 2005, Catalogue of the Cerambycidae (Coleoptera) of the Neotropical Region. Part II. Subfamily Lamiinae, pp. 1-760 in Zootaxa 1023 (1) on pages 1-760, DOI: 10.11646/zootaxa.946.1.1, http://zenodo.org/record/5049553
Cosmological Evolution of Homogeneous Universal Extra Dimensions
Creators: name: Bringmann, Torsten
name: Eriksson, Martin
name: Gustafsson, Michael
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The lightest Kaluza-Klein particle appearing in models with universal extra dimensions has recently been proposed as a viable dark matter candidate when the extra dimensions are compactified on a scale of the order of 1 TeV. Underlying assumptions of this proposal are that the size of the extra dimensions stays constant and that the evolution of the universe is given by standard cosmology. Here we investigate, both analytically and numerically, whether this is possible without introducing an explicit stabilization mechanism. By analyzing Einstein's field equations for a (3+n+1)-dimensional homogeneous, but in general anisotropic universe, we find that approximately static extra dimensions arise naturally during radiation domination. For matter domination, however, there are no solutions to the field equations that allow static extra dimensions or the usual behavior of the scale factor for ordinary three-dimensional space. We conclude that an explicit mechanism is needed in order to stabilize the extra dimensions and reproduce standard cosmology as we know it.
description: 12 pages, 2 figures; minor changes and 3 references added
Quantum fluctuations and semiclassicality in an inflaton-driven evolution
Creators: name: Brizuela, David
name: Pawlowski, Tomasz
Publisher: name: arXiv
Year: 2021
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: A semiclassical description of quantum systems is applied to probe the dynamics of the cosmological model of an inflationary universe with quadratic inflaton potential, described in a quantum framework of geometrodynamics. The systematic analysis, focusing in particular on the inflationary and post-inflationary epochs, revealed several surprising and counterintuitive features: $(i)$ during inflation the universe rapidly spreads out in volume which leads to significant relative variance by the end of inflation; $(ii)$ despite that, the quantum evolution can still be described to high accuracy by semiclassical methods; $(iii)$ moreover, in the post-inflationary epoch, as the order of included quantum corrections increases, the quantum trajectory approaches the classical one and the description involving second-order corrections only is actually the least accurate there. The consequence of the latter is that the effects of the quantum variances are washed out by the higher-order quantum corrections.
description: Expanded version of the paper accepted for publication in JCAP. We have included a more detailed derivation of the model, some clarifications on the presentation of the results, and several new references
Price Competition Between Imported Wheat • Varieties in the Japanese Market
Creators: name: Boyd, Richard H.
name: Schmidt, Stephen C.
name: Boyd, Richard H.
name: Schmidt, Stephen C.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries
International Relations/Trade

description: The study uses a Transcendental logarithmic (TL) function to estimate Japanese import demand for varieties of wheat. It concludes that their Food Agency fills annual quotes without regard for the prices of competing varieties. However, price differentials have a small but measurable effect upon the monthly scheduling of import purchases.
title: Epidemiology and health care utilization associated with chronic pain in Newfoundland and Labrador, Canada: a population-based study using health administrative data
Creators: name: Foley, Heather Elizabeth
Publisher: name: Memorial University of Newfoundland
Year: 2022

description: Background: Chronic pain exerts a tremendous burden on individuals, families, and society, and has a high estimated prevalence (up to 54% globally and 44% in Canada) and direct health care cost ($7.2 billion in Canada in 2014). Most Canadian epidemiological and cost estimates do not include Newfoundland and Labrador; a knowledge gap potentially filled using health administrative data. Aim: To extract information about chronic pain as a single chronic disease in Newfoundland and Labrador using health administrative data. Methods: Health administrative data algorithms that identify cases of chronic pain as a single chronic disease were derived from the Newfoundland and Labrador Medical Care Plan Fee-for-Service Physician Claims File and Provincial Discharge Abstract Data of known chronic pain populations, and validated against an audit of the electronic medical records data of a primary care population sample. The most performant algorithm was used to identify chronic pain cases from fee-for-service physician claims data in Newfoundland and Labrador, which allowed estimation of both chronic pain incidence/prevalence, and chronic pain association with comorbidity presence and annual health care utilization. Results: The most performant validated algorithm to ascertain chronic pain cases from Newfoundland and Labrador administrative data had 70.3% sensitivity, 66.8% specificity, and 40.3% positive predictive value. As defined by the algorithm, the 2009/10 age-standardized Newfoundland and Labrador chronic pain prevalence was estimated at 37,469 per 100,000 population and incidence rate was estimated at 4,585 per 100,000 person-years at risk. Estimates were higher in females, residents of urban areas, and with increasing age. Residents identified as chronic pain cases had two to four times the odds of having a chronic comorbidity and up to twice the rate of publicly funded health care utilization compared to residents not identified as chronic pain cases. Conclusions: A health administrative data algorithm was derived and validated to identify chronic pain cases and estimate disease burden in residents attending fee-for-service physician encounters in Newfoundland and Labrador. The Chronic Pain Algorithm identified almost four out of ten Newfoundland and Labrador residents and they had a higher prevalence of comorbidities and utilization of publicly funded health services.
The Sloan Digital Sky Survey Science Archive: Migrating a Multi-Terabyte Astronomical Archive from Object to Relational DBMS
Creators: name: Thakar, Aniruddha R.
name: Szalay, Alexander S.
name: Kunszt, Peter Z.
name: Gray, Jim
Publisher: name: arXiv
Year: 2004
Subjects: subject: Databases (cs.DB)
subject: FOS: Computer and information sciences
subject: H.0

description: The Sloan Digital Sky Survey Science Archive is the first in a series of multi-Terabyte digital archives in Astronomy and other data-intensive sciences. To facilitate data mining in the SDSS archive, we adapted a commercial database engine and built specialized tools on top of it. Originally we chose an object-oriented database management system due to its data organization capabilities, platform independence, query performance and conceptual fit to the data. However, after using the object database for the first couple of years of the project, it soon began to fall short in terms of its query support and data mining performance. This was as much due to the inability of the database vendor to respond our demands for features and bug fixes as it was due to their failure to keep up with the rapid improvements in hardware performance, particularly faster RAID disk systems. In the end, we were forced to abandon the object database and migrate our data to a relational database. We describe below the technical issues that we faced with the object database and how and why we migrated to relational technology.
Joint Matrix Decomposition for Deep Convolutional Neural Networks Compression
Creators: name: Chen, Shaowu
name: Zhou, Jiahao
name: Sun, Weize
name: Huang, Lei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Deep convolutional neural networks (CNNs) with a large number of parameters require intensive computational resources, and thus are hard to be deployed in resource-constrained platforms. Decomposition-based methods, therefore, have been utilized to compress CNNs in recent years. However, since the compression factor and performance are negatively correlated, the state-of-the-art works either suffer from severe performance degradation or have relatively low compression factors. To overcome this problem, we propose to compress CNNs and alleviate performance degradation via joint matrix decomposition, which is different from existing works that compressed layers separately. The idea is inspired by the fact that there are lots of repeated modules in CNNs. By projecting weights with the same structures into the same subspace, networks can be jointly compressed with larger ranks. In particular, three joint matrix decomposition schemes are developed, and the corresponding optimization approaches based on Singular Value Decomposition are proposed. Extensive experiments are conducted across three challenging compact CNNs for different benchmark data sets to demonstrate the superior performance of our proposed algorithms. As a result, our methods can compress the size of ResNet-34 by 22X with slighter accuracy degradation compared with several state-of-the-art methods.
description: Code is publicly available at: https://github.com/ShaowuChen/JointSVD
Cauchy Problem for Fractional Diffusion Equations
Creators: name: Eidelman, Samuil D.
name: Kochubei, Anatoly N.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 26A33, 35K15, 35S99

description: We consider an evolution equation with the regularized fractional derivative of an order $α\in (0,1)$ with respect to the time variable, and a uniformly elliptic operator with variable coefficients acting in the spatial variables. Such equations describe diffusion on inhomogeneous fractals. A fundamental solution of the Cauchy problem is constructed and investigated.
description: Version 2 contains a correction (formula 4.14) as compared with the published text
From Sun to interplanetary space: What is the pathlength of Solar Energetic Particles?
Creators: name: Laitinen, T.
name: Dalla, S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Space Physics (physics.space-ph)
subject: FOS: Physical sciences

description: Solar energetic particles (SEPs), accelerated during solar eruptions, propagate in turbulent solar wind before being observed with in situ instruments. In order to interpret their origin through comparison with remote-sensing observations of the solar eruption, we thus must deconvolve the transport effects due to the turbulent magnetic fields from the SEP observations. Recent research suggests that the SEP propagation is guided by the turbulent meandering of the magnetic fieldlines across the mean magnetic field. However, the lengthening of the distance the SEPs travel, due to the fieldline meandering, has so far not been included in SEP event analysis. This omission can cause significant errors in estimation of the release times of SEPs at the Sun. We investigate the distance travelled by the SEPs by considering them to propagate along fieldlines that meander around closed magnetic islands that are inherent in turbulent plasma. We introduce a fieldline randow walk model which takes into account the physical scales associated to the magnetic islands. Our method remedies the problem of the diffusion equation resulting in unrealistically short pathlengths, and the fractal dependence of the pathlength of random walk on the length of the random-walk step. We find that the pathlength from the Sun to 1 au can be below the nominal Parker spiral length for SEP events taking place at solar longitudes 45E to 60W, whereas the western and behind-the-limb particles can experience pathlengths longer than 2 au due to fieldline meandering.
description: 10 pages, 4 figures; Accepted for publication in Astrophysical Journal
Proposed Test of Quantum Nonlocality for Continuous Variables
Creators: name: Nha, Hyunchul
name: Carmichael, H. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a test of nonlocality for continuous variables using a two-mode squeezed state as the source of nonlocal correlations and a measurement scheme based on conditional homodyne detection. Both the CHSH- and the CH-inequality are constructed from the conditional homodyne data and found to be violated for a squeezing parameter larger than $r\approx0.48$.
description: published version, typo corrected for the equation in the text before Eq.(11)
Systematic Review of the Effect of Exercise in Community-Dwelling High-Risk Fallers
Creators: name: Birring, Jason
name: Chan, Catherine
name: Mar, Tia
name: Sun, Rosy
name: Vishniakoff, Larissa
name: Liu-Ambrose, Teresa
Publisher: name: The University of British Columbia
Year: 2016

description: MPT Systematic Reviews and Research Projects.
GEOGRAPHIC DISTRIBUTION OF FEDERAL FUNDS IN 1985
Creators: name: Dubin, Elliott J.
name: Dubin, Elliott J.
Publisher: name: Unknown
Year: 1989
Subjects: subject: Financial Economics
subject: Political Economy
subject: Federal funds
subject: Federal expenditures
subject: Federal spending
subject: Federal
subject: programs
subject: expenditure analysis
subject: public policy
subject: program analysis

description: Metropolitan counties received substantially higher levels of per capita Federal funding than nonmetropolitan counties in fiscal year 1985. The gap between metro and nonmetro funding increased slightly since fiscal year 1980 due to increases in defense spending. The metro-nonmetro differences in nondefense fund levels narrowed considerably during the first half of the 1980's. Metro and nonmetro counties differed in the composition of their funding in 1985. Metro counties received greater amounts of defense funding, while nonmetro counties depended more heavily on agricultural assistance, natural resource, and income transfer funds. Differences in the per capita level and composition of funding differed considerably among the various categories of nonmetro counties.
Introducing iFluid: a numerical framework for solving hydrodynamical equations in integrable models
Creators: name: Møller, Frederik S.
name: Schmiedmayer, Jörg
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present an open-source Matlab framework, titled iFluid, for simulating the dynamics of integrable models using the theory of generalized hydrodynamics (GHD). The framework provides an intuitive interface, enabling users to define and solve problems in a few lines of code. Moreover, iFluid can be extended to encompass any integrable model, and the algorithms for solving the GHD equations can be fully customized. We demonstrate how to use iFluid by solving the dynamics of three distinct systems: (i) The quantum Newton's cradle of the Lieb-Liniger model, (ii) a gradual field release in the XXZ-chain, and (iii) a partitioning protocol in the relativistic sinh-Gordon model.
description: 25 pages, 5 figures, Submission to SciPost
Employment, Welfare and Distributional Effects of a Unilateral Change in Sugar Trade Policy
Creators: name: Weidman, James M.
name: Weidman, James M.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries
International Relations/Trade

description: Efficiency and distributional impacts of the removal of sugar trade protection in presence of factor price rigidities and factor immobilities are analyzed. Protection removal should be considered, but in the absence of full knowledge of society's system of ethical beliefs and the present concern with "Fair Trade", a definitive conclusion is not possible.
How to model BEC numrically?
Creators: name: Utyuzh, O. V.
name: Wilk, G.
name: Wlodarczyk, Z.
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The new method of numerical modelling of Bose-Einstein correlations observed in all kinds of multiparticle production processes is proposed.
description: Contribution to Second Warsaw Meeting on Particle Correlations and Resonances in Heavy Ion Collisions, Warsaw, 15-18 October, 2003, Poland
AGRICULTURAL EFFECTS OF CHANGES IN FINANCIAL MARKETS
Creators: name: Baker, C. B.
name: Baker, C. B.
Publisher: name: Unknown
Year: 1984
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Marketing
subject: FOS: Economics and business

description: In this paper I will argue that nominal interest rates are being increased by rising real rates. Real rates are being driven by demands to finance economic development and infrastructural management. In recent decades they have been suppressed by highly regulated domestic financial markets and distorted by less developed international financial markets.
AN ECOUOMETRIC MODEL OF THE NITROGEN FERTILIZER INDUSTRY IN THE UNITED STATES.
Creators: name: Gyawu, Emanuel A.
name: Jones, Larry D.
name: Debertin, David L.
name: Pagoulatos, A.
name: Gyawu, Emanuel A.
name: Jones, Larry D.
name: Debertin, David L.
name: Pagoulatos, A.
Publisher: name: Unknown
Year: 1984
Subjects: Demand and Price Analysis
Farm Management
Land Economics/Use

description: Empirical estimates of supply, demand, prices, imports and exports of nitrogen fertilizer (aggregate and specific) products in a simultaneous framework are provided. Impact multipliers derived provide information on effects of increasing costs of nitrogen fertilizer on farm level demand and impacts of rising natural gas prices on production.
Exploring concurrency and reachability in the presence of high temporal resolution
Creators: name: Lee, Eun
name: Moody, James
name: Mucha, Peter J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: Network properties govern the rate and extent of spreading processes on networks, from simple contagions to complex cascades. Recent advances have extended the study of spreading processes from static networks to temporal networks, where nodes and links appear and disappear. We review previous studies on the effects of temporal connectivity for understanding the spreading rate and outbreak size of model infection processes. We focus on the effects of "accessibility", whether there is a temporally consistent path from one node to another, and "reachability", the density of the corresponding "accessibility graph" representation of the temporal network. We study reachability in terms of the overall level of temporal concurrency between edges, quantifying the overlap of edges in time. We explore the role of temporal resolution of contacts by calculating reachability with the full temporal information as well as with a simplified interval representation approximation that demands less computation. We demonstrate the extent to which the computed reachability changes due to this simplified interval representation.
description: To appear in Holme and Saramaki (Editors). "Temporal Network Theory". Springer- Nature, New York. 2019
The Mis-Perception of Price and Credit Policy in Developing Country Agriculture: The Case of Costa Rica
Creators: name: Larson, Donald W.
name: Vogel, Robert C.
name: Larson, Donald W.
name: Vogel, Robert C.
Publisher: name: Unknown
Year: 1984
Subjects: Agricultural and Food Policy
Demand and Price Analysis
Farm Management
International Development

description: The impact of price and credit policies on agricultural production in Costa Rica is examined. Declining relative prices and an overvalued exchange rate have contributed to the stagnation of farm production. Low interest loans have not promoted agricultural production but have rather reduced the flow of bank credit to agriculture.
A High Spatial Resolution Infrared View of the T Tauri Multiple System
Creators: name: Beck, Tracy L.
name: Schaefer, G. H.
name: Simon, M.
name: Prato, L.
name: Stoesz, J. A.
name: Howell, R. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the results of our monitoring study of the IR photometric and spectroscopic variability of the T Tau multiple system. We also present data on the apparent position of T Tau S with respect to T Tau N, and two new spatially resolved observations of the T Tau Sa-Sb binary. T Tau N has not varied by more than 0.2 magnitudes in K and L' flux during the 8 years of our observations, though its Br gamma and Br alpha emission line fluxes have varied by nearly a factor of four during this time. For the unresolved T Tau S system, we have derived a 20 year light curve based on our images and on measurements available in the literature. T Tau S varies by 2-3 magnitudes in K and L'-band brightness in a ``redder when faint'' manner, consistent with changes along the line of sight in the amount of material that follows an ISM extinction law. Absorption in the 3.05um water-ice feature is seen only in the spectra of T Tau S and it displays variations in depth and profile. H_2 (2.12 um) emission is also detected only at the position of T Tau S; the H_2, Br gamma and Br alpha emission line fluxes also vary. We have found that the apparent positions of T Tau S with respect to T Tau N and T Tau Sb with respect to Sa are consistent with gravitationally bound orbital motion. The possible orbits of the T Tau S binary imply that Sa is likely the most massive component in this young triple. A reanalysis of the motion of the radio source associated with T Tau S provides no evidence for an ejection event in the T Tau system.
description: 49 pages, including 17 figures. Accepted for publication in the Astrophysical Journal
A Bayesian Compressive Sensing Approach to Robust Near-Field Antenna Characterization
Creators: name: Salucci, Marco
name: Anselmi, Nicola
name: Migliore, Marco Donald
name: Massa, Andrea
Publisher: name: arXiv
Year: 2021
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: A novel probabilistic sparsity-promoting method for robust near-field (NF) antenna characterization is proposed. It leverages on the measurements-by-design (MebD) paradigm and it exploits some a-priori information on the antenna under test (AUT) to generate an over-complete representation basis. Accordingly, the problem at hand is reformulated in a compressive sensing (CS) framework as the retrieval of a maximally-sparse distribution (with respect to the overcomplete basis) from a reduced set of measured data and then it is solved by means of a Bayesian strategy. Representative numerical results are presented to, also comparatively, assess the effectiveness of the proposed approach in reducing the "burden/cost" of the acquisition process as well as to mitigate (possible) truncation errors when dealing with space-constrained probing systems.
description: Submitted to IEEE
What do astrophysics and the world's oldest profession have in common?
Creators: name: Lopez-Corredoira, Martin
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: Physics and Society (physics.soc-ph)
subject: FOS: Physical sciences

description: In the present paper I want to tell of my impressions about the world of research in astrophysics, which I know from close observation. I see with certain pessimism the actual state of astrophysics, as well as of other sciences with similar problems. There are many charms in the profession, as many charms as in love, but not when they are in the service of mercantile aims.
description: 25 pages (English version) + 25 pages (Spanish version). This version: corrections in the Spanish translation. Published in the collection of papers "AGAINST THE TIDE"/"A CONTRACORRIENTE". Get a paperback copy at: http://www.universal-publishers.com/ . Spanish version at http://science-society.cgpublisher.com/product/pub.183/prod.3
AN EMPIRICAL ANALYSIS OF MACROECONOMIC FACTORS INFLUENCING THE AGRICULTURAL EXCHANGE RATE OF THE DOLLAR
Creators: name: Pagoulatos, Emilio
name: Shonkwiler, J. Scott
name: Canler, Edward
name: Pagoulatos, Emilio
name: Shonkwiler, J. Scott
name: Canler, Edward
Publisher: name: Unknown
Year: 1984
Subjects: Agribusiness
Agricultural Finance

description: This paper tests empirically a number of models, based on the asset-market" view of exchange rates, which explain movements in the agricultural trade-weighted dollar exchange rate. Our results indicate that the portfolio balance approach more accurately accounts for the determinants of the effective agricultural exchange rate.
Engineering continuous and discrete variable quantum vortex states by nonlocal photon subtraction in a reconfigurable photonic chip
Creators: name: Barral, David
name: Liñares, Jesús
name: Balado, Daniel
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the production of entangled two- and N-mode quantum states of light in optical waveguides. To this end, we propose a quantum photonic circuit that produces a reconfigurable superposition of photon subtraction on two single-mode squeezed states. Under postselection, continuous variable or discrete variable entangled states with possibilities in quantum information processing are obtained. Likewise, nesting leads to higher-dimension entanglement with a similar design, enabling the generation of non-Gaussian continuous variable cluster states. Additionally, we show the operation of the device through the generation of quantum vortex states of light and propose an integrated device that measures their order and handedness. Finally, we study the non-Gaussianity, nonclassicality, and entanglement of the quantum states generated with this scheme by means of the optical field-strength distribution, Wigner function, and logarithmic negativity.
description: 12 pages, 7 figures. Very close to the published version. Typos in Equations (30), (31) and (33) in the published version were corrected
Evolution of decaying particles and decay products in various scenarios for the future expansion of the universe
Creators: name: Norton, Cameron E.
name: Scherrer, Robert J.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We examine nonrelativistic particles that decay into relativistic products in big rip, little rip, and pseudo-rip models for the future evolution of the universe. In contrast to decays that occur in standard $Λ$CDM, the evolution of the ratio $r$ of the energy density of the relativistic decay products to the energy density of the initially decaying particles can decrease with time in all of these models. In big rip and little rip models, $r$ always goes to zero asymptotically, while this ratio evolves to infinity or a constant in pseudo-rip models.
description: 4 pages, 3 figures, discussion and asymptotic analytic solution added
A numerical renormalization group study of laser induced freezing
Creators: name: Chaudhuri, Debasish
name: Sengupta, Surajit
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We study the phenomenon of laser induced freezing, within a numerical renormalization scheme which allows explicit comparison with a recent defect mediated melting theory. Precise values for the `bare' dislocation fugacities and elastic moduli of the 2-d hard disk system are obtained from a constrained Monte Carlo simulation sampling only configurations {\em without} dislocations. These are used as inputs to appropriate renormalization flow equations to obtain the equilibrium phase diagram which shows excellent agreement with earlier simulation results. We show that the flow equations need to be correct at least up to third order in defect fugacity to reproduce meaningful results.
description: Minor Corrections; Combined version of Europhys. Lett. 67 (2004) p. 814 and Europhys. Lett. 68 (2004) p. 160
Prospects for the detection of electromagnetic counterparts to gravitational wave events
Creators: name: Sylvestre, Julien
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Various models for electromagnetic emissions correlated with the gravitational wave signals expected to be detectable by the current and planned gravitational wave detectors are studied. The position error on the location of a gravitational wave source is estimated, and is used to show that it could be possible to observe the electromagnetic counterparts to neutron star-neutron star or neutron star-black hole binary coalescences detected with the Advanced LIGO and the Virgo detectors.
description: 5 pages, 1 table, 1 figure