cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Droplets in the coexistence region of the two-dimensional Ising model
Creators: name: Pleimling, M.
name: Selke, W.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The two-dimensional Ising model with fixed magnetization is studied using Monte Carlo techniques. At the coexistence line, the macroscopic, extensive droplet of minority spins becomes thermally unstable by breaking up into microscopic clusters. Intriguing finite--size effects as well as singularities of thermal and cluster properties associated with the transition are discussed.
description: 7 pages, 3 figures included, submitted to J. Phys. A: Math. Gen
Spontaneous Jamming in One-Dimensional Systems
Creators: name: O'Loan, O. J.
name: Evans, M. R.
name: Cates, M. E.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We study the phenomenon of jamming in driven diffusive systems. We introduce a simple microscopic model in which jamming of a conserved driven species is mediated by the presence of a non-conserved quantity, causing an effective long range interaction of the driven species. We study the model analytically and numerically, providing strong evidence that jamming occurs; however, this proceeds via a strict phase transition (with spontaneous symmetry breaking) only in a prescribed limit. Outside this limit, the nearby transition (characterised by an essential singularity) induces sharp crossovers and transient coarsening phenomena. We discuss the relevance of the model to two physical situations: the clustering of buses, and the clogging of a suspension forced along a pipe.
description: 8 pages, 4 figures, uses epsfig. Submitted to Europhysics Letters
Three-phase point in a binary hard-core lattice model?
Creators: name: Verberkmoes, Alain
name: Nienhuis, Bernard
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using Monte Carlo simulation, Van Duijneveldt and Lekkerkerker [Phys. Rev. Lett. 71, 4264 (1993)] found gas-liquid-solid behaviour in a simple two-dimensional lattice model with two types of hard particles. The same model is studied here by means of numerical transfer matrix calculations, focusing on the finite size scaling of the gaps between the largest few eigenvalues. No evidence for a gas-liquid transition is found. We discuss the relation of the model with a solvable RSOS model of which the states obey the same exclusion rules. Finally, a detailed analysis of the relation with the dilute three-state Potts model strongly supports the tricritical point rather than a three-phase point.
description: 17 pages, LaTeX2e, 13 EPS figures
La interactividad en espacios de aprendizaje virtuales: roles de profesores y estudiantes
Creators: name: García, Enrique
Publisher: name: figshare
Year: 2021
Subjects: subject: 130205 Humanities and Social Sciences Curriculum and Pedagogy (excl. Economics, Business and Management)
subject: FOS: Educational sciences

description: Online learning environments need a method of interaction based on communication elements provided by professors to eliminate uncertainty in students and show availability to support their students when facing difficulties related with their learning. This exploratory research is a theoretical conceptual proposal that has the objective to show an integrative model with needed elements to solve problems related with professor-student interactions in an online environment. The objective of this work was reached by identifying rapport and information provided by the professor as important elements for the solution of the stated problem. Moreover, these two elements were related with concepts to fulfill the objective of this work by proposing a professor-student interaction model in ideal online learning environments to be used for the development of the theoretical framework and present hypothesis in further researches.
A Quantum Monte Carlo Approach to the Adiabatic Connection Method
Creators: name: Nekovee, Maziar
name: Foulkes, W. M. C.
name: Williamson, A. J.
name: Rajagopal, G.
name: Needs, R. J.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a new method for realizing the adiabatic connection approach in density functional theory, which is based on combining accurate variational quantum Monte Carlo calculations with a constrained optimization of the ground state many-body wavefunction for different values of the Coulomb coupling constant. We use the method to study an electron gas in the presence of a cosine-wave potential. For this system we present results for the exchange-correlation hole and exchange-correlation energy density, and compare our findings with those from the local density approximation and generalized gradient approximation.
description: to be published in Advances in Quantum Chemistry
An index for closed orbits in Beltrami fields
Creators: name: Etnyre, John
name: Ghrist, Robert
Publisher: name: arXiv
Year: 2001
Subjects: subject: Dynamical Systems (math.DS)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 76; 37N10

description: We consider the class of Beltrami fields (eigenfields of the curl operator) on three-dimensional Riemannian solid tori: such vector fields arise as steady incompressible inviscid fluids and plasmas. Using techniques from contact geometry, we construct an integer-valued index for detecting closed orbits in the flow which are topologically inessential (they have winding number zero with respect to the solid torus). This index is independent of the Riemannian structure, and is computable entirely from a C^1 approximation to the vector field on any meridional disc of the solid torus.
PUL OQIMI BOSHQARUVI VA UNING KORXONA BARQARORLIGIGA TA'SIRI
Creators: name: Berdaliyev, Xaydarqul
Publisher: name: Zenodo
Year: 2024

description: Pul oqimi boshqaruvi har qanday korxona uchun muvaffaqiyat va barqarorlikning asosiy omillaridan biri hisoblanadi.
Endlicheria chalisea Chanderb.
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Laurales
Lauraceae
Endlicheria
Endlicheria chalisea

description: [595] Endlicheria chalisea Chanderb.
 Novon 6 (4): 329 [winter 1996] (Chanderbali 1996).
 HERBARIUM DATA (FG). — 4 collections at CAY. Sel. exs.: S. Barrier 4026.
INVENTORY DATA (FG). — 5 trees in 3 plots; Fmax <1 %; dbhinv = 25.9 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 479, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Combining European Earth Observation products with Dynamic Global Vegetation Models for estimating Essential Biodiversity Variables
Creators: name: Paula, Mateus Dantas De
name: Giménez, Marta Gómez
name: Aidin Niamir
name: Thurner, Martin
name: Hickler, Thomas
Publisher: name: Taylor & Francis
Year: 2019
Subjects: subject: Ecology
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Science Policy
subject: Plant Biology

description: Global, fast and accessible monitoring of biodiversity is one of the main pillars of the efforts undertaken in order to revert it loss. The Group on Earth Observations Biodiversity Observation Network (GEO-BON) provided an expert-based definition of the biological properties that should be monitored, the Essential Biodiversity Variables (EBVs). Initiatives to provide indicators for EBVs rely on global, freely available remote sensing (RS) products in combination with empirical models and field data, and are invaluable for decision making. In this study, we provide alternatives for the expansion and improvement of the EBV indicators, by suggesting current and future data from the European Space Agencýs COPERNICUS and explore the potential of RS-integrated Dynamic Global Vegetation Models (DGVMs) for the estimation of EBVs. Our review found that mainly due to the inclusion of the Sentinel constellation, Copernicus products have similar or superior potential for EBV indicator estimation in relation to their NASA counterparts. DGVMs simulate the ecosystem level EBVs (ecosystem function and structure), and when integrated with remote sensing data have great potential to not only offer improved estimation of current states but to provide projection of ecosystem impacts. We suggest that focus on producing EBV relevant outputs should be a priority within the research community, to support biodiversity preservation efforts.
Gaussian multipartite quantum discord from classical mutual information
Creators: name: Bradshaw, Mark
name: Lam, Ping Koy
name: Assad, Syed M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum discord is a measure of non-classical correlations, which are excess correlations inherent in quantum states that cannot be accessed by classical measurements. For multipartite states, the classically accessible correlations can be defined by the mutual information of the multipartite measurement outcomes. In general the quantum discord of an arbitrary quantum state involves an optimisation of over the classical measurements which is hard to compute. In this paper, we examine the quantum discord in the experimentally relevant case when the quantum states are Gaussian and the measurements are restricted to Gaussian measurements. We perform the optimisation over the measurements to find the Gaussian discord of the bipartite EPR state and tripartite GHZ state in the presence of different types of noise: uncorrelated noise, multiplicative noise and correlated noise. We find that by adding uncorrelated noise and multiplicative noise, the quantum discord always decreases. However, correlated noise can either increase or decrease the quantum discord. We also find that for low noise, the optimal classical measurements are single quadrature measurements. As the noise increases, a dual quadrature measurement becomes optimal.
description: 10 pages, 5 figures
Andreev tunnelling in quantum dots: A slave-boson approach
Creators: name: Schwab, P.
name: Raimondi, R.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study a strongly interacting quantum dot connected to a normal and to a superconducting lead. By means of the slave-boson technique we investigate the low temperature regime and discuss electrical transport through the dot. We find that the zero bias anomaly in the current-voltage characteristics which is associated to the occurance of the Kondo resonance in the quantum dot, is enhanced in the presence of superconductivity, due to resonant Andreev scattering.
description: 4 pages, 1 figure
Additional file 4 of Genome-wide identification and characterization of circular RNA m6A modification in pancreatic cancer
Creators: name: Ye, Ying
name: Feng, Weiyi
name: Zhang, Jialiang
name: Zhu, Kaiyu
name: Huang, Xudong
name: Pan, Ling
name: Su, Jiachun
name: Zheng, Yanfen
name: Li, Rui
name: Deng, Shuang
name: Bai, Ruihong
name: Zhuang, Lisha
name: Wei, Lusheng
name: Deng, Junge
name: Li, Mei
name: Chen, Rufu
name: Lin, Dongxin
name: Zuo, Zhixiang
name: Zheng, Jian
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Chemical Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Information Systems not elsewhere classified
subject: Cancer
subject: Plant Biology

description: Additional file 4. uncropped blot for Fig. S3A and Fig. 3B.
Coiled: Dask as a Service
Creators: name: Rocklin, Matthew
Publisher: name: Zenodo
Year: 2021
Subjects: Coiled
Pangeo
Dask

description: Pangeo Showcase seminar series talk. Coiled is a company that provides Dask as a service. In this talk we provide a short motivation for and introduction to the company and product, then give a live demo.
Coherent Stranski-Krastanov growth in 1+1 dimensions with anharmonic interactions: An equilibrium study
Creators: name: Korutcheva, E.
name: Turiel, A. -M.
name: Markov, I.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The formation of coherently strained three-dimensional islands on top of the wetting layer in Stranski-Krastanov mode of growth is considered in a model in 1+1 dimensions accounting for the anharmonicity and non-convexity of the real interatomic forces. It is shown that coherent 3D islands can be expected to form in compressed rather than in expanded overlayers beyond a critical lattice misfit. In the latter case the classical Stranski-Krastanov growth is expected to occur because the misfit dislocations can become energetically favored at smaller island sizes. The thermodynamic reason for coherent 3D islanding is the incomplete wetting owing to the weaker adhesion of the edge atoms. Monolayer height islands with a critical size appear as necessary precursors of the 3D islands. The latter explains the experimentally observed narrow size distribution of the 3D islands. The 2D-3D transformation takes place by consecutive rearrangements of mono- to bilayer, bi- to trilayer islands, etc., after exceeding the corresponding critical sizes. The rearrangements are initiated by nucleation events each next one requiring to overcome a lower energetic barrier. The model is in good qualitative agreement with available experimental observations.
description: 12 pages text, 15 figures, Accepted in Phys.Rev.B, Vol.61, No24
Testing MOG theory in the Milky Way
Creators: name: Negrelli, Carolina
name: Benito, Maria
name: Landau, Susana
name: Iocco, Fabio
name: Kraiselburd, Lucila
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We perform a test of John Moffat's Modified Gravity theory (MOG) within the Milky Way, adopting the well known "Rotation Curve" method. We use the dynamics of observed tracers within the disk to determine the gravitational potential as a function of galactocentric distance, and compare that with the potential that is expected to be generated by the visible component only (stars and gas) under different "flavors" of the MOG theory, making use of a state-of-the-art setup for both the observed tracers and baryonic morphology. Our analysis shows that in both the original and the modified version (considering a self-consistent evaluation of the Milky Way mass), the theory fails to reproduce the observed rotation curve. We conclude that in none of its present formulation, the MOG theory is able to explain the observed Rotation Curve of the Milky Way.
description: 7 pages, 2 figures. Accepted for publication in PRD
Dynamics of Viscoplastic Deformation in Amorphous Solids
Creators: name: Falk, M. L.
name: Langer, J. S.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose a dynamical theory of low-temperature shear deformation in amorphous solids. Our analysis is based on molecular-dynamics simulations of a two-dimensional, two-component noncrystalline system. These numerical simulations reveal behavior typical of metallic glasses and other viscoplastic materials, specifically, reversible elastic deformation at small applied stresses, irreversible plastic deformation at larger stresses, a stress threshold above which unbounded plastic flow occurs, and a strong dependence of the state of the system on the history of past deformations. Microscopic observations suggest that a dynamically complete description of the macroscopic state of this deforming body requires specifying, in addition to stress and strain, certain average features of a population of two-state shear transformation zones. Our introduction of these new state variables into the constitutive equations for this system is an extension of earlier models of creep in metallic glasses. In the treatment presented here, we specialize to temperatures far below the glass transition, and postulate that irreversible motions are governed by local entropic fluctuations in the volumes of the transformation zones. In most respects, our theory is in good quantitative agreement with the rich variety of phenomena seen in the simulations.
description: 16 pages, 9 figures
SmartSim: Online Analytics and Machine Learning for HPC Simulations
Creators: name: Partee, Sam
name: Ellis, Matthew
name: Rigazzi, Alessandro
name: Bachman, Scott
name: Marques, Gustavo
name: Shao, Andrew
Publisher: name: Zenodo
Year: 2021
Subjects: Pangeo
Machine Learning
SmartSim

description: SmartSim is an open source library dedicated to enabling online analysis and Machine Learning (ML) for traditional High Performance Computing (HPC) simulations. SmartSim provides the ability for simulations written in C, C++, Fortran, and Python to call out to PyTorch, TorchScript, TensorFlow, and any model that supports the ONNX format (i.e. scikit-learn). In addition, the in-transit architecture of SmartSim enables simulation data streaming for online analysis, processing, and training. In this talk we detail the SmartSim architecture and provide benchmarks including online inference and throughput on multiple Cray XC50 supercomputers. We will detail examples including how we used SmartSim to run a 12-member ensemble of global-scale, high-resolution ocean simulations, each spanning 19 compute nodes, all communicating with the same ML architecture at each simulation timestep. Lastly, we will present our plans for open source community involvement, and detail current development directions and research.
Endlicheria szyszylowiczii Mez
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Laurales
Lauraceae
Endlicheria
Endlicheria szyszylowiczii

description: [600] Endlicheria szyszylowiczii Mez
 Jahrb. Königl. Bot. Gart. Berlin 5: 121 (Mez 1889 ).
 HERBARIUM DATA (FG). — A single collection, R.A.A. Oldeman B-2312, 12 m × 35 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 479, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Dark matter effect attributed to the inherent structure of cosmic space
Creators: name: Tenev, T. G.
name: Horstemeyer, M. F.
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 83D05, 74L99

description: We propose that anomalous gravitational effects currently attributed to dark matter can alternatively be explained as a manifestation of the inherent structure of space at galactic length scales. Specifically, we show that the inherent curvature of space amplifies the gravity of ordinary matter such that the effect resembles the presence of the hypothetical hidden mass. Our study is conducted in the context of weak gravity, nearly static conditions, and spherically symmetric configuration, and leverages the Cosmic Fabric model of space developed by Tenev and Horstemeyer [T. G. Tenev and M. F. Horstemeyer, Int. J. Mod. Phys. D 27 (2018) 1850083; T. G. Tenev and M. F. Horstemeyer, Rep. Adv. Phys. Sci. 2 (2018) 1850011]
Integrability of the critical point of the Kagomé three-state Potts mode
Creators: name: d'Auriac, J. -Ch. Anglès
Publisher: name: arXiv
Year: 1999
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: The vicinity of the critical point of the three-state Potts model on a Kagomé lattice is studied by mean of Random Matrix Theory. Strong evidence that the critical point is integrable is given.
description: 1 LaTex file + 3 eps files 7 pages
The Organization of Wholesale Fruit and Vegetable Markets in Dallas-Fort Worth, Houston and Little Rock
Creators: name: Manchester, Alden C.
name: Manchester, Alden C.
Publisher: name: Unknown
Year: 1962
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpts from the report Introduction: Three markets in Texas and Arkansas supply fresh fruits and vegetables to a population of over three million people, Dallas-Fort Worth is a major distribution center for Texas and adjoining States. Houston is a substantial market supplying the area within 100 miles of the city. Little Rock is a somewhat smaller market supplying two-thirds of the State of Arkansas. This report describes the organization and operation of these markets, including the buying, selling, and operating practices of the wholesalers and chains in the markets, and the changes that have taken place during the past quarter century. The information on which the report is based was obtained as part of a nationwide study of the organization and operations of wholesale produce markets. The purpose of the study was to describe and appraise the current status of wholesale markets and the changes that had taken place in them. The findings should give firms in wholesale and shipping-point markets, farmers, interested citizens, and public agencies a better understanding of the forces at work in the marketing system for fresh fruits and vegetables, and provide a basis for making better decisions in adjusting to the changes taking place throughout the structure of marketing.
Collective Modes and the Superconducting State Spectral Function of Bi2212
Creators: name: Norman, M. R.
name: Ding, H.
Publisher: name: arXiv
Year: 1997
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Photoemission spectra of the high temperature superconductor Bi2212 near (pi,0) show a dramatic change when cooling below Tc: the broad peak in the normal state turns into a sharp low energy peak followed by a higher binding energy hump. Recent experiments find that this low energy peak persists over a significant range in momentum space. We show in this paper that these data are well described by a simple model of electrons interacting with a collective mode which appears only below Tc.
description: 4 pages, revtex, 4 encapsulated postscript figures
Ab-initio Theoretical Description of the Interrelation between Magnetocrystalline Anisotropy and Atomic Short-Range Order
Creators: name: Razee, S. S. A.
name: Staunton, J. B.
name: Ginatempo, B.
name: Pinski, F. J.
name: Bruno, E.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: The cubic lattice symmetry of ferromagnetic homogeneously disordered alloys is when a compositional modulation is imposed. This can have a profound influence on the magnetocrystalline anisotropy energy (MAE). We describe our ab-initio theory of this effect and use the framework of concentration waves with the electronic structure described within the spin-polarised relativistic Korringa-Kohn-Rostoker coherent-potential approximation. We find that ordering produces a 2 order of magnitude increase in the MAE as well as altering the equilibrium direction of magnetisation. Using the same theoretical framework we also examine directional compositional order produced by magnetic annealing with an explicit study of permalloy.
description: 11 pages, 1 figure
Licaria rufotomentosa van der Werff
Creators: name: Molino, Jean-François
name: Sabatier, Daniel
name: Grenand, Pierre
name: Engel, Julien
name: Frame, Dawn
name: Delprete, Piero G.
name: Fleury, Marie
name: Odonne, Guillaume
name: Davy, Damien
name: Lucas, Eve J.
name: Martin, Claire A.
Publisher: name: Zenodo
Year: 2022
Subjects: Biodiversity
Taxonomy
Plantae
Tracheophyta
Magnoliopsida
Laurales
Lauraceae
Licaria
Licaria rufotomentosa

description: [611] Licaria rufotomentosa van der Werff
 Novon 13 (3): 342 [autumn 2003] (van der Werff 2003).
NOTE. — Known only from French Guiana.
 HERBARIUM DATA (FG). — 7 collections at CAY. Sel. exs.: B. Dutrève & F. Crozier 7 (holo-, MO[MO-104256, MO-104257]; iso-, CAY[CAY014160, CAY014161]).
INVENTORY DATA (FG). — 6 trees in 5 plots; Fmax <1 %; dbhinv = 32.5 cm.
description: Published as part of Molino, Jean-François, Sabatier, Daniel, Grenand, Pierre, Engel, Julien, Frame, Dawn, Delprete, Piero G., Fleury, Marie, Odonne, Guillaume, Davy, Damien, Lucas, Eve J. & Martin, Claire A., 2022, An annotated checklist of the tree species of French Guiana, including vernacular nomenclature, pp. 345-903 in Adansonia (3) (3) 44 (26) on page 481, DOI: 10.5252/adansonia2022v44a26, http://zenodo.org/record/7458777
Signalements
Creators: name: Gateau, Cécile
name: Barbut, Frédéric
name: Couturier, Jeanne
Publisher: name: Health & Co
Year: 2017
Subjects: ANTIBIOTIQUES
CLOSTRIDIUM DIFFICILE
DIARRHÉE
INFECTION ASSOCIÉE AUX SOINS
PRÉCAUTION COMPLÉMENTAIRE CONTACT
PRÉVENTION DES INFECTIONS

description: Clostridium difficile est la principale étiologie des diarrhées associées aux soins en Europe et aux États-Unis. Les infections à C. difficile (ICD) sont associées à une morbidité et à une mortalité importantes, entraînant des coûts sociétaux et financiers. Une part des ICD peut être prévenue par le bon usage des antibiotiques (principal facteur de risque). La diminution de consommation de certaines classes d’antibiotiques à risque (fluoroquinolones, céphalosporines) a ainsi été associée à une diminution de l’incidence des ICD. Pour limiter la transmission croisée, soit à partir de l’environnement soit par les mains des soignants, les patients infectés doivent être placés en chambre individuelle avec des toilettes privatives. Les précautions complémentaires contact reposent sur trois mesures essentielles : le renforcement de l’hygiène des mains, le port de gants systématique en entrant dans la chambre du patient infecté et un bionettoyage quotidien avec des produits adaptés. Cette revue détaille les principales recommandations pour le contrôle des ICD publiées par les sociétés savantes.
Gamma-Band Correlations in Primary Visual Cortex
Creators: name: Liu, X.
name: Sanz-Leon, P.
name: Robinson, P. A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Neurons and Cognition (q-bio.NC)
subject: Biological Physics (physics.bio-ph)
subject: FOS: Biological sciences
subject: FOS: Physical sciences

description: Neural field theory is used to quantitatively analyze the two-dimensional spatiotemporal correlation properties of gamma-band (30 -- 70 Hz) oscillations evoked by stimuli arriving at the primary visual cortex (V1), and modulated by patchy connectivities that depend on orientation preference (OP). Correlation functions are derived analytically under different stimulus and measurement conditions. The predictions reproduce a range of published experimental results, including the existence of two-point oscillatory temporal cross-correlations with zero time-lag between neurons with similar OP, the influence of spatial separation of neurons on the strength of the correlations, and the effects of differing stimulus orientations.
description: 23 pages; 12 figures
Crossover between ballistic and diffusive regime of the spin-conductance and CPP-GMR in magnetic multilayered nanostructures
Creators: name: Sanvito, S.
name: Lambert, C. J.
name: Jefferson, J. H.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We analyze the interplay between disorder and band structure in current perpendicular to the planes (CPP) giant magnetoresistance (GMR). We consider finite magnetic multilayers attached to pure crystalline leads, described by a tight-binding simple cubic two-band model (s-d). Several models of disorder are considered, including random on-site potentials, lattice distortions, impurities, vacancies, and cross-section fluctuations. Magneto-transport properties are calculated in the zero-temperature zero-bias limit, within the Landauer-Buttiker formalism. Using a very efficient numerical scattering technique, we are able to perform simulations, over large length scales, and to investigate spin-transport in the ballistic, diffusive and localized regimes, as well as the crossover between them. The competition between disorder-induced mean free path reduction and disorder-induced spin asymmetry enhancement of the conductance highlights several different regimes of GMR.
description: 16 pages, 10 figures
Évaluation de la maîtrise du risque infectieux lors du nettoyage et de la désinfection d’endoscopes souples non autoclavables – Résultats de l’audit national 2015
Creators: name: Simon, Loïc
name: Jouzeau, Nathalie
name: Ali-Brandmeyer, Olivia
Publisher: name: Health & Co
Year: 2017
Subjects: AUDIT QUALITÉ
ENDOSCOPIE
EVALUATION DES PRATIQUES PROFESSIONNELLES
RISQUE INFECTIEUX

description: Le premier audit national sur l’évaluation des procédures de nettoyage et de désinfection en endoscopie s’est déroulé en 2015 dans les établissements de santé ayant une activité d’endoscopie. L’objectif principal était d’évaluer la maîtrise du risque infectieux d’origine exogène et de mesurer les écarts aux référentiels. Cet audit était accompagné d’une instruction ministérielle. Il comprenait quatre niveaux d’évaluation : « établissement » avec son organisation de la gestion du risque infectieux, « site de traitement » avec les modalités de prise en charge des endoscopes, « personnel » avec la nature de l’activité et de la formation du personnel et « observation » des différentes étapes de nettoyage et de désinfection des endoscopes. Cet audit a été réalisé par 699 établissements de santé, correspondant à 1 275 sites de traitement avec 8 279 fiches complétées par les personnels et 13 142 observations réalisées par des auditeurs externes. Cette forte participation a permis de mettre en évidence qu’il existe une gestion organisée du risque infectieux (démarche qualité, signalements internes d’évènements indésirables…), un inventaire mis à jour du parc d’endoscopes, ainsi qu’un plan de maintenance, une organisation des contrôles microbiologiques, et des pratiques satisfaisantes pour les étapes de nettoyage et de désinfection des endoscopes. La centralisation du traitement des endoscopes, le traitement en dehors des heures ouvrables, la connaissance de l’architecture complexe des endoscopes nécessitent encore des actions d’amélioration.
Additional file 1 of Serum zinc levels and in vivo beta-amyloid deposition in the human brain
Creators: name: Kim, Jee Wook
name: Byun, Min Soo
name: Yi, Dahyun
name: Lee, Jun Ho
name: Kim, Min Jung
name: Jung, Gijung
name: Lee, Jun-Young
name: Kang, Koung Mi
name: Sohn, Chul-Ho
name: Lee, Yun-Sang
name: Kim, Yu Kyeong
name: Lee, Dong Young
Publisher: name: figshare
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Molecular Biology
subject: Neuroscience
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Mental Health

description: Additional file 1: Supplementary material including authors list for the KBASE group.
The Organization of the Wholesale Fruit and Vegetable Market in Philadelphia
Creators: name: Podany, Joseph C.
name: Podany, Joseph C.
Publisher: name: Unknown
Year: 1962
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Research and Development/Tech Change/Emerging Technologies

description: Excerpts from the report Introduction: The Philadelphia produce market is the fourth largest in the United States in terms of unloads of fruits and vegetables; only New York, Los Angeles and Chicago surpass it. The Philadelphia market is the main source of supply of fruits and vegetables for about 4 million people living in the metropolitan area. It also provides large quantities of fruits and vegetables to nearby densely populated areas along the Atlantic seaboard. This report describes the organization and operation of the Philadelphia market, the buying, selling, and operating practices of the wholesalers in the market, and the changes which have taken place during the past 30 years. The information on which the report is based was obtained as part of a nationwide study of the organization and operations of wholesale produce markets. The purpose of the study was to describe and appraise the current status of wholesale markets and the changes which have taken place in them. The findings should give wholesale and shipping-point markets, farmers, and interested citizens and public agencies a better understanding of the forces at work in the marketing system for fresh fruits and vegetables, and provide a basis for making better decisions in adjusting to the changes taking place throughout the structure of marketing.
Evaluation of the clinical learning environment at teaching hospitals in Syria using the validated Arabic PHEEM
Creators: name: Alfakhry, Ghaith
name: Kodmani, Rama
name: Ghandour, Munir
name: Almunajjed, Amer
name: Khawanda, Rawan
Publisher: name: F1000 Research Limited
Year: 2024

description: This study evaluates the clinical learning environment in war-affected Damascus, Syria, using the Arabic PHEEM for the first time. With 1,533 residents from various specialties participating, it provides insights into their conditions, identifies areas needing improvement, and offers evidence-based recommendations to enhance clinical training.

Introduction: Measuring the learning environment (LE) is an essential component of curriculum development and management, as it has well-recognized importance for students’ success, satisfaction, and character development. The ongoing conflict in Syria has affected all aspects of life. The destruction of healthcare facilities, the financial constraints, and the huge immigration waves of healthcare professionals rendered the Syrian health system incapable of adequately meeting the healthcare demands of the Syrian population. The current study aims to evaluate the learning environment at teaching hospitals in Damascus, the Capital of Syria.



Methods: This cross-sectional study utilizes the validated Arabic version of the Postgraduate Hospital Educational Environment Measure (PHEEM). Residents from thirty-three different specialties were approached from year one to the final year of training. The data collection phase started in mid-June and ended on August 20, 2023.



Results: 1533 medical residents completed the questionnaire (51.1% female). The PHEEM score was 72.2±21.3 (max score: 144): perception of teachers was 20.2±7.8 (max. 40); learners’ engagement and social participation was 30±8 (max. 52); external regulation was 9.7±4 (max. 20); work culture was 9.8±4.8 (max. 24); living conditions was 2.47±2.0 (max. 8); resources evaluation was 5.2±3 (max. 12); perception of wellbeing was 3.1±2 (max. 8). A total of 501 (33%) residents think that patients are being aggressive towards the health staff and 954 (62.7%) are planning to immigrate to another country. Qualitative data supported the quantitative findings.

 

Discussion: The PHEEM score is indicative of a clinical learning environment that is viewed with considerable ambivalence and needs to be carefully reviewed. Data showed a significant paucity of resources and poor living conditions at the hospital. Ignoring the deficits in the learning environment might lead to the continuing attrition of residents and specialists undertraining who form the backbone of the healthcare system in Syria. Future research should endeavor to design targeted interventions to address the deficiencies identified in this study.
A variational approach to necklaces formation in polyelectrolytes
Creators: name: Solis, Francisco J.
name: de la Cruz, Monica Olvera
Publisher: name: arXiv
Year: 1997
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: By means of a variational approach we study the conditions under which a polyelectrolyte in a bad solvent will undergo a transition from a rod-like structure to a ``necklace'' structure in which the chain collapses into a series of globules joined by stretched chain segments.
description: 6 pages, 4 figures (unfortunately big). Requires revtex, epsf
Discrete Fourier transform associated with generalized Schur polynomials
Creators: name: van Diejen, J. F.
name: Emsiz, E.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Numerical Analysis (math.NA)
subject: Mathematical Physics (math-ph)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 65T50, 05E05, 15B10, 42A10, 42B10, 33D52

description: We prove the Plancherel formula for a four-parameter family of discrete Fourier transforms and their multivariate generalizations stemming from corresponding generalized Schur polynomials. For special choices of the parameters, this recovers the sixteen classic discrete sine- and cosine transforms DST-1,...,DST-8 and DCT-1,...,DCT-8, as well as recently studied (anti-)symmetric multivariate generalizations thereof.
description: 14 pages, LaTeX
Deformation Theory of Infinity Algebras
Creators: name: Fialowski, Alice
name: Penkava, Michael
Publisher: name: arXiv
Year: 2001
Subjects: subject: Representation Theory (math.RT)
subject: Commutative Algebra (math.AC)
subject: FOS: Mathematics
subject: 14D (primary), 13D, 17B (secondary)

description: This work explores the deformation theory of algebraic structures in a very general setting. These structures include commutative, associative algebras, Lie algebras, and the infinity versions of these structures, the strongly homotopy associative and Lie algebras. In all these cases the algebra structure is determined by an element of a certain graded Lie algebra which plays the role of a differential on this algebra. We work out the deformation theory in terms of the Lie algebra of coderivations of an appropriate coalgebra structure and construct a universal infinitesimal deformation as well as a miniversal formal deformation. By working at this level of generality, the main ideas involved in deformation theory stand out more clearly.
description: 31 pages, LaTeX2e
Additional file 1 of CD4+ effector T cells accelerate Alzheimer’s disease in mice
Creators: name: Machhi, Jatin
name: Yeapuri, Pravin
name: Lu, Yaman
name: Foster, Emma
name: Chikhale, Rupesh
name: Herskovitz, Jonathan
name: Namminga, Krista L.
name: Olson, Katherine E.
name: Abdelmoaty, Mai Mohamed
name: Gao, Ju
name: Quadros, Rolen M.
name: Kiyota, Tomomi
name: Jingjing, Liang
name: Kevadiya, Bhavesh D.
name: Wang, Xinglong
name: Liu, Yutong
name: Poluektova, Larisa Y.
name: Gurumurthy, Channabasavaiah B.
name: Mosley, R. Lee
name: Gendelman, Howard E.
Publisher: name: figshare
Year: 2021
Subjects: subject: Immunology
subject: FOS: Clinical medicine

description: Additional file 1: Figure S1. Development of monoclonal Aβ-Th1 and Aβ-Th17 cells. Figure S2. Modelling and explicit solvent molecular dynamics simulations. Figure S3. Adoptive transfer of Aβ-Teffs did not affect T cell frequency in APP/PS1 mice. Figure S4. Transcriptomic analysis of immune genes. Figure S5. Western blot images.
O'ZBEKISTON SOLIQ MA'MURCHILIK METODOLOGIYASINI TAKOMILLASHTIRISH MASALALARI
Creators: name: Jononmirzayeva, Dilafruz
Publisher: name: Zenodo
Year: 2024

description: Maqolada soliq ma’muriyatchiligi metodologiyasi har qanday soliq tizimining muhim jihati bo‘lib, uni doimiy ravishda takomillashtirish soliqlarning samarali undirilishi, ularga rioya etilishi va adolatliligini ta’minlashda muhim ahamiyatga ega. Ushbu мақолада soliq ma'muriyatchiligi metodologiyasida duch keladigan asosiy muammolarni ko'rib chiqadi va takomillashtirish strategiyasini taklif qiladi. Ushbu muammolarni hal qilish uchun soliq ma'muriyatchiligi metodologiyasini takomillashtirish bo'yicha bir qancha strategiyalar taklif etiladi. Mazkur muammolarni hal qilish va taklif qilingan strategiyalarni amalga oshirish orqali soliq ma'muriyatlari ularning samaradorligini oshirishi, ixtiyoriy rioya etilishini rag'batlantirishi va daromadlarni yig'ishni optimallashtirishi mumkin. Soliq ma'muriyatchiligining takomillashtirilgan metodologiyasi iqtisodiy o'sishni va barqaror rivojlanishni qo'llab-quvvatlovchi adolatli va samarali soliq tizimini yaratishga yordam beradi.
Bridging the Gap: Morphological Mapping of the Beqaa’s Vernacular Built Environment
Creators: name: Abdouni, Lynn
Publisher: name: European Journal of Creative Practices in Cities and Landscapes
Year: 2024

description:  

 Located 30 km inland from Lebanon’s coast, The Beqaa Valley (or Beqaa Plains) is considered the agricultural backbone of the country. The Beqaa’s built geographies were shaped by the political and economic hierarchies established by the Roman and Ottoman Empires and revised by the French Mandate. Local and regional economic hardships in the last six decades have led the Beqaa to cycle through periods of decline and recovery, with quick introductions of infrastructural technologies, spurts of loosely regulated building development, and hasty innovations in industrial activity. In this vein, ‘reflexive realism’ concepts of risk regime, logic of production, topographical fragmentation, and internal connectivity, are useful to examine how towns and cities in the Beqaa developed, deteriorated, and adjusted. However, spatial evidence that would inform such inquiries in Rayak, Beqaa, is far from similar to evidence observed in Beirut. Urban morphology research techniques combined with the concept of vernacular architecture can help decode the layers and uses of the built environment. This article introduces a mapping workflow that typologizes built fabrics using five morphological criteria (streets, density, open space, architectural character, and land use) to construct a spatial narrative that can begin characterizing the nature of the Beqaa’s cities and towns. 
description: European Journal of Creative Practices in Cities and Landscapes, Vol. 6 No. 1 (2023): Mediterranean Imagineries
Additional file 1: of 1-Octen-3-ol, a self-stimulating oxylipin messenger, can prime and induce defense of marine alga
Creators: name: Chen, Haimin
name: Yang, Rui
name: Chen, Juanjuan
name: Luo, Qijun
name: Cui, Xiaoshan
name: Yan, Xiaojun
name: Gerwick, William
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Microbiology
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: Biological Sciences not elsewhere classified
subject: Marine Biology
subject: Inorganic Chemistry
subject: FOS: Chemical sciences
subject: Plant Biology

description: Figure S1. The base peak ionization chromatogram of a Pyropia haitanensis sample. (PDF 369 kb)
Additional file 2: of 1-Octen-3-ol, a self-stimulating oxylipin messenger, can prime and induce defense of marine alga
Creators: name: Chen, Haimin
name: Yang, Rui
name: Chen, Juanjuan
name: Luo, Qijun
name: Cui, Xiaoshan
name: Yan, Xiaojun
name: Gerwick, William
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Ecology
subject: Immunology
subject: FOS: Clinical medicine
subject: Marine Biology
subject: Cancer
subject: Inorganic Chemistry
subject: FOS: Chemical sciences

description: Figure S2. The score plot of principal component analysis (PCA) of lipid profiles in Pyropia haitanensis extracts cultured under control and 1-octen-3-ol treatment. A, Positive; B, Negative. (PDF 326 kb)
KROSS-SAMI: A Direct IFS Comparison of the Tully-Fisher Relation Across 8 Gyr Since $z \approx 1$
Creators: name: Tiley, A. L.
name: Bureau, M.
name: Cortese, L.
name: Harrison, C. M.
name: Johnson, H. L.
name: Stott, J. P.
name: Swinbank, A. M.
name: Smail, I.
name: Sobral, D.
name: Bunker, A. J.
name: Glazebrook, K.
name: Bower, R. G.
name: Obreschkow, D.
name: Bryant, J. J.
name: Jarvis, M. J.
name: Bland-Hawthorn, J.
name: Magdis, G.
name: Medling, A. M.
name: Sweet, S. M.
name: Tonini, C.
name: Turner, O. J.
name: Sharples, R. M.
name: Croom, S. M.
name: Goodwin, M.
name: Konstantopoulos, I. S.
name: Lorente, N. P. F.
name: Lawrence, J. S.
name: Mould, J.
name: Owers, M. S.
name: Richards, S. N.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We construct Tully-Fisher relations (TFRs), from large samples of galaxies with spatially-resolved H$α$ emission maps from the K-band Multi-Object Spectrograph (KMOS) Redshift One Spectroscopic Survey (KROSS) at $z\approx1$. We compare these to data from the Sydney-Australian-Astronomical-Observatory Multi-object Integral-Field Spectrograph (SAMI) Galaxy Survey at $z\approx0$. We stringently match the data quality of the latter to the former, and apply identical analysis methods and sub-sample selection criteria to both to conduct a direct comparison of the absolute $K$-band magnitude and stellar mass TFRs at $z\approx1$ and $z\approx0$. We find that matching the quality of the SAMI data to that of KROSS results in TFRs that differ significantly in slope, zero-point and (sometimes) scatter in comparison to the corresponding original SAMI relations. These differences are in every case as large or larger than the differences between the KROSS $z\approx1$ and matched SAMI $z\approx0$ relations. Accounting for these differences, we compare the TFRs at $z\approx1$ and $z\approx0$. For disk-like, star-forming galaxies we find no significant difference in the TFR zero-points between the two epochs. This suggests the growth of stellar mass and dark matter in these types of galaxies is intimately linked over this $\approx8$ Gyr period.
description: Accepted for publication in MNRAS
Additional file 3: of 1-Octen-3-ol, a self-stimulating oxylipin messenger, can prime and induce defense of marine alga
Creators: name: Chen, Haimin
name: Yang, Rui
name: Chen, Juanjuan
name: Luo, Qijun
name: Cui, Xiaoshan
name: Yan, Xiaojun
name: Gerwick, William
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Cell Biology
subject: Molecular Biology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Marine Biology

description: Differential lipid identification. (PDF 17 kb)