cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
A new insight into BRST anomalies in string theory
Creators: name: Fujiwara, T.
name: Igarashi, Y.
name: Kubo, J.
name: Maeda, K.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the generalized hamiltonian method of Batalin, Fradkin and Vilkovisky, we investigate the algebraic structure of anomalies in the Polyakov string theory that appear as the Schwinger terms in super-commutation relations between BRST charge and total hamiltonian. We obtain the most general form of the anomalies in the extended phase space, without any reference to a two dimensional metric. This pregeometri- cal result, refered to as the genelarized Virasoro anomaly, independent of the gauge and the regularization under a minor assumption, is a non-perturbative result, and valid for any space-time dimension. In a configuration space, in which the two dimensional metric can be identified, we can geometrize the result without assuming the weak gravitational field, showing that the most general anomaly exactly exhibits the Weyl anomaly.
description: 19 pages
Information theory for fields
Creators: name: Enßlin, Torsten A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: A physical field has an infinite number of degrees of freedom since it has a field value at each location of a continuous space. Therefore, it is impossible to know a field from finite measurements alone and prior information on the field is essential for field inference. An information theory for fields is needed to join the measurement and prior information into probabilistic statements on field configurations. Such an information field theory (IFT) is built upon the language of mathematical physics, in particular on field theory and statistical mechanics. IFT permits the mathematical derivation of optimal imaging algorithms, data analysis methods, and even computer simulation schemes. The application of IFT algorithms to astronomical datasets provides high fidelity images of the Universe and facilitates the search for subtle statistical signals from the Big Bang. The concepts of IFT might even pave the road to novel computer simulations that are aware of their own uncertainties.
description: 21 pages, 7 figures, resubmitted
D4.3 Survey specific parallel corpora
Creators: name: Zavala-Rojas, Diana
name: Danielly Sorato
Publisher: name: Zenodo
Year: 2021
Subjects: SSHOC
Social Sciences and Humanities Open Cloud
European Open Science Cloud
EOSC
Interoperability
metadata interoperability
Corpora
survey

description: This document describes the [MCSQ]: Multilingual Corpus of Survey Questionnaires (MCSQ), a database of survey questionnaires’ texts. The report summarizes technical information about Version 1.0 (Ada Lovelace) of the MCSQ, dated in June 2020. It links to the repository to access the code and files generating the database. The corpus is compiled from questionnaires from the of European Social Survey (ESS) and the European Values Study (EVS) in the English source language and their translations into Catalan, Czech, French (produced for France, Switzerland, Belgium and Luxembourg), German (produced for Austria, Germany, Switzerland and Luxembourg), Norwegian, Portuguese, Spanish and Russian (produced for Israel, Latvia, Lithuania, Russian Confederation, Ukraine, Estonia). The MCSQ is temporarily stored in a virtual machine provided by Universitat Pompeu Fabra. This document summarizes the research output of Task 4.2: Preparing tools for the use of Computer Assisted Translation, of the Social Science and Humanities Open Cloud (SSHOC) project. This document is closely related to D4.4, “Guidelines for building survey-specific corpora: the compilation of the [MCSQ]: Multilingual Corpus of Survey Questionnaires.” D4.4 provides a detailed description of the design and implementation of the corpus, whereas D4.3 includes the database itself
$\order(Γ)$ Corrections to $W$ pair production in $e^+e^-$ and $γγ$ collisions
Creators: name: Aeppli, Andre
name: Cuypers, Frank
name: van Oldenborgh, Geert Jan
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Several schemes to introduce finite width effects to reactions involving unstable elementary particles are given and the differences between them are investigated. The effects of the different schemes is investigated numerically for $W$ pair production. In $e^+e^-\to W^+W^-$ we find that the effect of the non-resonant graphs cannot be neglected for $\sqrt{s}\geq400\GeV$. There is no difference between the various schemes to add these to the resonant graphs away from threshold, although some violate gauge invariance. On the other hand, in the reaction $γγ\to W^+W^-$ the effect of the non-resonant graphs is large everywhere, due to the $t$-channel pole. However, even requiring that the outgoing lepton is observable ($p_\perp > .02\sqrt{s}$) reduces the contribution to about 1\%. Again, the scheme dependence is negligible here.
description: 9 pages plus 6 with figures (.uu at end, also available with anonymous ftp from pss058.psi.ch [129.129.40.58]), LaTeX, LMU-21/92, PSI-PR-93-05, TTP92-36
Assessment of Solid Sorbent Systems for Post - Combustion Carbon Dioxide Capture at Coal - Fired Power Plants
Creators: name: Glier, Justin C.
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: In an effort to lower future CO2 emissions, a wide range of technologies are being developed to scrub CO2 from the flue gases of fossil fuel-based electric power and industrial plants. This thesis models one of several early-stage post-combustion CO2 capture technologies, solid sorbent-based CO2 capture process, and presents performance and cost estimates of this system on pulverized coal power plants. The spreadsheet-based software package Microsoft Excel was used in conjunction with AspenPlus modelling results and the Integrated Environmental Control Model to develop performance and cost estimates for the solid sorbent-based CO2 capture technology. A reduced order model also was created to facilitate comparisons among multiple design scenarios. Assumptions about plant financing and utilization, as well as uncertainties in heat transfer and material design that affect heat exchanger and reactor design were found to produce a wide range of cost estimates for solid sorbent-based systems. With uncertainties included, costs for a supercritical power plant with solid sorbent-based CO2 capture ranged from $167 to $533 per megawatt hour for a first-of-a-kind installation (with all costs in constant 2011 US dollars) based on a 90% confidence interval. The median cost was $209/MWh. Post-combustion solid sorbent-based CO2 capture technology is then evaluated in terms of the potential cost for a mature system based on historic experience as technologies are improved with sequential iterations of the currently available system. The range costs for a supercritical power plant with solid sorbent-based CO2 capture was found to be $118 to $189 per megawatt hour with a nominal value of $163 per megawatt hour given the expected range of technological improvement in the capital and operating costs and efficiency of the power plant after 100 GW of cumulative worldwide experience. These results suggest that the solid sorbent-based system will not be competitive with currently available liquid amine-systems in the absence of significant new improvements in solid sorbent properties and process system design to reduce the heat exchange surface area in the regenerator and cross-flow heat exchanger. Finally, the importance of these estimates for policy makers is discussed.
Dark matter constraints from dwarf galaxies: a data-driven analysis
Creators: name: Calore, Francesca
name: Serpico, Pasquale D.
name: Zaldivar, Bryan
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Dwarf galaxies represent a powerful probe of annihilating dark matter particle models, with gamma-ray data setting some of the best bounds available. A major issue in improving over existing constraints consists in the limited knowledge of the astrophysical background (mostly diffuse photons, but also unresolved sources). Perhaps more worrisome, several approaches in the literature suffer of the difficulty of assessing the systematic error due to background mis-modelling. Here we propose a data-driven method to estimate the background at the dwarf position and its uncertainty, relying on an appropriate use of the whole-sky data, via an optimisation procedure of the interpolation weights. While this article is mostly methodologically oriented, we also report the bounds based on latest Fermi-LAT data and updated information for J-factors for both isolated and stacked dwarfs. Our results are very competitive with the Fermi-LAT ones, while being derived with a more general and flexible method. We discuss the impact of profiling over the J-factor as well as over the background probability distribution function, with the latter resulting for instance crucial in drawing conclusions of compatibility with DM interpretations of the so-called Galactic Centre Excess.
description: clarifications added, some bugs fixed; minor quantitative changes, qualitative results unchanged
Additional file 1: of AnalgesiaÂ effect of premixed nitrous oxide/oxygen during theÂ rehabilitation after total knee arthroplasty: a study protocol for a randomized controlled trial
Creators: name: Dai, Ya-Liang
name: Chai, Xiao-Min
name: Zhu, Ning
name: Wang, Kai-Bin
name: Bao, Wen-Qiang
name: Zhang, Xue-Sen
name: Gao, Lu-Lu
name: Liu, Qiang
name: Bao, Dong-Mei
name: Wang, Li-Ting
name: Wang, Yi-Ling
name: Zhang, Jun-Jun
name: Li, Yu-Xiang
name: Yu, Jian-Qiang
Publisher: name: figshare
Year: 2019
Subjects: Medicine
Biological Sciences not elsewhere classified
Science Policy

description: Standard Protocol Items: Recommendations for Interventional Trials (SPIRIT) 2013 Checklist: recommended items to address in a clinical trial protocol and related documents. (DOC 126 kb)
Magnetar Driven Bubbles and the Origin of Collimated Outflows from GRBs
Creators: name: Bucciantini, N.
name: Quataert, E.
name: Arons, J.
name: Metzger, B. D.
name: Thompson, Todd A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We model the interaction between the wind from a newly formed rapidly rotating magnetar and the surrounding progenitor. In the first few seconds after core collapse the magnetar inflates a bubble of plasma and magnetic fields behind the supernova shock, which expands asymmetrically because of the pinching effect of the toroidal magnetic field, as in PWNe, even if the host star is spherically symmetric. The degree of asymmetry depends on the ratio of the magnetic energy to the total energy in the bubble. We assume that the wind by newly formed magnetars inflating these bubbles is more magnetized than for PWNe. We show that for a magnetic to total power supplied by the central magnetar $\sim 0.1$ the bubble expands relatively spherically while for values greater than 0.3, most of the pressure in the bubble is exerted close to the rotation axis, driving a collimated outflow out through the host star. This can account for the collimation inferred from observations of long-duration gamma-ray bursts (GRBs). Given that the wind magnetization increases in time, we thus suggest that the magnetar-driven bubble initially expands relatively spherically (enhancing the energy of the associated supernova) while at late times it becomes progressivelymore collimated (producing the GRB). Similar processes may operate in more modestly rotating neutron stars to produce asymmetric supernovae and lower energy transients such as X-ray flashes.
description: Proceeding of the conference "Astrophysics of Compact Objects", 1-7 July, Huangshan, China
3D SPH simulations of grain growth in protoplanetary disks
Creators: name: Laibe, Guillaume
name: Gonzalez, Jean-François
name: Fouchet, Laure
name: Maddison, Sarah T.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the first results of the treatment of grain growth in our 3D, two-fluid (gas+dust) SPH code describing protoplanetary disks. We implement a scheme able to reproduce the variation of grain sizes caused by a variety of physical processes and test it with the analytical expression of grain growth given by Stepinski & Valageas (1997) in simulations of a typical T Tauri disk around a one solar mass star. The results are in agreement with a turbulent growing process and validate the method. We are now able to simulate the grain growth process in a protoplanetary disk given by a more realistic physical description, currently under development. We discuss the implications of the combined effect of grain growth and dust vertical settling and radial migration on subsequent planetesimal formation.
description: 3 pages, 3 figures, to appear in the Proceedings of IAU Symp. 249: Exoplanets: Detection, Formation and Dynamics (Suzhou, China)
Exclusive vector meson photoproduction in fixed - target collisions at the LHC
Creators: name: Goncalves, V. P.
name: Jaime, M. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The exclusive $ρ$, $ω$ and $J/Ψ$ photoproduction in fixed - target collisions at the LHC is investigated. We estimate, for the first time, the rapidity and transverse momentum distributions of the vector meson photoproduction in $p He$, $p Ar$, $Pb He$ and $Pb Ar$ fixed - target collisions at the LHC using the STARlight Monte Carlo and present our results for the total cross sections. Predictions for the kinematical range probed by the LHCb detector are also presented. Our results indicate that the experimental analysis of this process in fixed - target collisions at the LHC is feasible. Such future analysis will probe the QCD dynamics in a kinematical range complementary to that studied in the collider mode.
description: 7 pages, 4 figures, 1 table. Enlarged and improved version published in European Physical Journal C
Reciprocity approach for calculating the Purcell effect for emission into an open optical system
Creators: name: Schulz, K. M.
name: Jalas, D.
name: Petrov, A. Y.
name: Eich, M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Based on the reciprocity theorem, we present a formalism to calculate the power emitted by a dipole source into a particular propagating mode leaving an open optical system. The open system is completely arbitrary and the approach can be used in analytical calculations but may also be combined with numerical electromagnetic solvers to describe the emission of light sources into complex systems. We exemplify the use of the formalism in numerical simulations by analyzing the emission of a dipole that is placed inside a cavity with connected single mode exit waveguide. Additionally, we show at the example of a practical ring resonator system how the approach can be applied to systems that offer multiple electromagnetic energy decay channels. As a consequence of its inherent simplicity and broad applicability, the approach may serve as a powerful and practical tool for engineering light-matter-interaction in a variety of active optical systems.
Carnet nº 28, commencé à Bugel (p. 10)
Creators: name: Péraire, Lucien
name: CNRS
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2023

description: created: 24-3-1932
Quantum Field Theory of Particle Oscillations: Neutron-Antineutron Conversion
Creators: name: Tureanu, Anca
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We formulate the quantum field theory description of neutron-antineutron oscillations in the framework of canonical quantization, in analogy with the Bardeen--Cooper--Schrieffer (BCS) theory and the Nambu--Jona-Lasinio model. The physical vacuum of the theory is a condensate of pairs of {\it would-be neutrons and antineutrons} in the absence of the baryon-number violating interaction. The quantization procedure defines uniquely the mixing of massive Bogoliubov quasiparticle states which represent the neutron. In spite of not being mass eigenstates, neutron and antineutron states are defined on the physical vacuum and the oscillation formulated in asymptotic states. The exchange of baryonic number with the vacuum condensate engenders what may be observed as neutron-antineutron oscillation. The convergence between the present canonical approach and the Lagrangian/path integral approach to neutron oscillations is shown by the calculation of the anomalous (baryon-number violating) propagators. The quantization procedure proposed here can be extended to neutrino oscillations and, in general, to any particle oscillations.
description: 38 pages, clarifications and references added. Version published in Phys. Rev. D 98, 015019 (2018)
Assessing the Global Cyber and Biological Threat
Creators: name: Mezzour, Ghita
Publisher: name: Carnegie Mellon University
Year: 2015
Subjects: subject: Computer Engineering
subject: 90699 Electrical and Electronic Engineering not elsewhere classified
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In today’s inter-connected world, threats from anywhere in the world can have serious global repercussions. In particular, two types of threats have a global impact: 1) cyber crime and 2) cyber and biological weapons. If a country’s environment is conducive to cyber criminal activities, cyber criminals will use that country as a basis to attack end-users around the world. Cyber weapons and biological weapons can now allow a small actor to inflict major damage on a major military power. If cyber and biological weapons are used in combination, the damage can be amplified significantly. Given that the cyber and biological threat is global, it is important to identify countries that pose the greatest threat and design action plans to reduce the threat from these countries. However, prior work on cyber crime lacks empirical substantiation for reasons why some countries’ environments are conducive to cyber crime. Prior work on cyber and biological weapon capabilities mainly consists of case studies which only focus on select countries and thus are not generalizeable. To sum up, assessing the global cyber and biological threat currently lacks a systematic empirical approach. In this thesis, I take an empirical and systematic approach towards assessing the global cyber and biological threat. The first part of the thesis focuses on cyber crime. I examine international variation in cyber crime infrastructure hosting and cyber crime exposure. I also empirically test hypotheses about factors behind such variation. In that work, I use Symantec’s telemetry data, collected from 10 million Symantec customer computers worldwide and accessed through the Symantec’s Worldwide Intelligence Network Environment (WINE). I find that addressing corruption in Eastern Europe or computer piracy in Sub-Saharan Africa has the potential to reduce the global cyber crime. The second part of the thesis focuses on cyber and biological weapon capabilities. I develop two computational methodologies: one to assess countries’ biological capabilities and one to assess countries’ cyber capabilities. The methodologies examine all countries in the world and can be used by non-experts that only have access to publicly available data. I validate the biological weapon assessment methodology by comparing the methodology’s assessment to historical data. This work has the potential to proactively reduce the global cyber and biological weapon threat.
CNN+LSTM Architecture for Speech Emotion Recognition with Data Augmentation
Creators: name: Etienne, Caroline
name: Fidanza, Guillaume
name: Petrovskii, Andrei
name: Devillers, Laurence
name: Schmauch, Benoit
Publisher: name: arXiv
Year: 2018
Subjects: subject: Sound (cs.SD)
subject: Computation and Language (cs.CL)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this work we design a neural network for recognizing emotions in speech, using the IEMOCAP dataset. Following the latest advances in audio analysis, we use an architecture involving both convolutional layers, for extracting high-level features from raw spectrograms, and recurrent ones for aggregating long-term dependencies. We examine the techniques of data augmentation with vocal track length perturbation, layer-wise optimizer adjustment, batch normalization of recurrent layers and obtain highly competitive results of 64.5% for weighted accuracy and 61.7% for unweighted accuracy on four emotions.
description: 5 pages, 3 figures
title: ADCO, Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Cart. 29 (G 134), 996 folios, f. 0497
Creators: name: de la Côte d'Or, Archives départementales
name: CG21/F.PETOT/2012
name: Petot, Frédéric
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0497, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Septième cartulaire de Saint-Étienne de Dijon (1661-1665), Archives départementales de la Côte-d'Or, Cart. 29 (G 134), 996 folios, f. 0497, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https://manuscrits.cbma-project.eu/
description: Provenance: abbaye Saint-Étienne de Dijon
description: Provenance: http://www.wikidata.org/entity/Q15945019
Hidden entropy production and work fluctuations in an ideal active gas
Creators: name: Shankar, Suraj
name: Marchetti, M. Cristina
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Collections of self-propelled particles that move persistently by continuously consuming free energy are a paradigmatic example of active matter. In these systems, unlike Brownian "hot colloids", the breakdown of detailed balance yields a continuous production of entropy at steady state, even for an ideal active gas. We quantify the irreversibility for a non-interacting active particle in two dimensions by treating both conjugated and time-reversed dynamics. By starting with underdamped dynamics, we identify a hidden rate of entropy production required to maintain persistence and prevent the rapidly relaxing momenta from thermalizing, even in the limit of very large friction. Additionally, comparing two popular models of self-propulsion with identical dissipation on average, we find that the fluctuations and large deviations in work done are markedly different, providing thermodynamic insight into the varying extents to which macroscopically similar active matter systems may depart from equilibrium.
description: 9 pages including SI, 3 figures (published version)
Fusion Algebras Induced by Representations of the Modular Group
Creators: name: Eholzer, W.
Publisher: name: arXiv
Year: 1992
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using the representation theory of the subgroups SL_2(Z_p) of the modular group we investigate the induced fusion algebras in some simple examples. Only some of these representations lead to 'good' fusion algebras. Furthermore, the conformal dimensions and the central charge of the corresponding rational conformal field theories are calculated. Two series of representations which can be realized by unitary theories are presented. We show that most of the fusion algebras induced by admissible representations are realized in well known rational models.
description: (one change informula (4.15), some minor changes) 13 pages (plain TeX), to be published in Int.Jour.Mod.Phys.A
MOCCA-SURVEY Database I: Assessing GW kick retention fractions for BH-BH mergers in globular clusters
Creators: name: Morawski, J.
name: Giersz, M.
name: Askar, A.
name: Belczynski, K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Anisotropy of gravitational wave (GW) emission results in a net momentum gained by the black hole (BH) merger product, leading to a recoil velocity up to $\sim10^3\text{ km s}^{-1}$, which may kick it out of a globular cluster (GC). We estimate GW kick retention fractions of merger products assuming different models for BH spin magnitude and orientation (MS0 - random, MS1 - spin as a function of mass and metalicity, MS2 - constant value of $0.5$). We check how they depend on BH-BH merger time and properties of the cluster. We analyze the implications of GW kick retention fractions on intermediate massive BH (IMBH) formation by repeated mergers in a GC. We also calculate final spin of the merger product, and investigate how it correlates with effective spin of the binary. We used data from MOCCA (MOnte Carlo Cluster simulAtor) GC simulations to get a realistic sample of BH-BH mergers, assigned each BH spin value according to a studied model, and calculated recoil velocity and final spin based on most recent theoretical formulas. We discovered that for physically motivated models, GW kick retention fractions are about $30\%$ and display small dependence on assumptions about spin, but are much more prone to cluster properties. In particular, we discovered a strong dependence of GW kick retention fractions on cluster density. We also show that GW kick retention fractions are high in final life stages of the cluster, but low at the beginning. Finally, we derive formulas connecting final spin with effective spin for primordial binaries, and with maximal effective spin for dynamical binaries.
description: 13 pages, 9 figures, accepted for publication in MNRAS
Computation of Mini-Jet Inclusive Cross Sections
Creators: name: Del Duca, Vittorio
name: Peskin, Michael E.
name: Tang, Wai-Keung
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We apply the theory of parton-parton total cross sections at large ``s", due to Lipatov and collaborators, to compute the inclusive cross section for jets which accompany a large ``s" parton scattering process.
description: 13 pages
Operational decisions and financing strategies in a capital-constrained closed-loop supply chain
Creators: name: Zhang, Zhi-chao
name: Xu, Hai-yan
name: Chen, Ke-bing
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Sociology
subject: FOS: Sociology
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Science Policy
subject: Computational Biology

description: This paper aims to find operational decisions and financing strategies in a closed-loop supply chain (CLSC) consisting of a financially constrained manufacturer and a retailer. Based on a benchmark model without financing, three different financing strategies for the capital-constrained manufacturer, bank financing (BF), retailer credit financing (RCF), and hybrid financing (HF), are respectively incorporated and investigated. Analytical results show that: (a) Depending on the initial working capital /and the increased cost of financing from the bank, the manufacturer will change remanufacturing strategy from Partial remanufacturing to Complete remanufacturing for capital constrained CLSC when the relative unit cost of the remanufactured product is moderate; RCF strategy only revises and charges a higher wholesale price of new and remanufactured products; (b) For a financially constrained manufacturer in the CLSC, it holds the prerequisite to implement external financing and a higher financing rate to bank clearly cuts down the profits of the manufacturer and the channel but improves the retailer’s profit under certain conditions; RCF strategy always redistributes the channel profit compared with the non-capital-constrained CLSC; c) A feasible financing rate to the bank of the manufacturer and an appropriate interest rate threshold of the retailer are potentially confirmed.
Leptoquarks at $eγ$ Colliders
Creators: name: Nadeau, Helene
name: London, David
Publisher: name: arXiv
Year: 1993
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We consider single production of leptoquarks (LQ's) at $eγ$ colliders, for two values of the centre-of-mass energy, $\sqrt{s}=500$ GeV and 1 TeV. LQ's with masses essentially up to the kinematic limit can be seen, even for couplings as weak as $O(10^{-3})$-$O(10^{-2})α_{em}$. It is possible to detect LQ's of mass greater than $\sqrt{s}$ by looking for signals of virtual LQ production in $eγ\to e q{\overline q}$.
description: 11 pages, 6 figures available by request to DL, to be published in Phys. Rev. D, Plain TeX, UdeM-LPN-TH-132
Assessing the Costs and Risks of Novel Wind Turbine Applications
Creators: name: Rose, Stephen M.
Publisher: name: Carnegie Mellon University
Year: 2013
Subjects: subject: 160510 Public Policy
subject: FOS: Political science
subject: 99999 Engineering not elsewhere classified
subject: FOS: Other engineering and technologies

description: This thesis addresses the cost-effectiveness of curtailing a wind farm to regulate the electrical grid frequency and the hurricane risk to offshore wind farms in the eastern United States. Additionally, this thesis presents a new method to generate long periods of non-stationary wind speed time series data sampled at high rates by combining measured and simulated data. Paper 1 calculates the cost of curtailing the power output of a wind farm to provide a reserve of power to regulate the electrical grid frequency, as required by grid operators in several countries with high wind-power penetrations. The simulations in Paper 1 show that it is most efficient to curtail a few turbines deeply rather than curtail all turbines in a wind farm equally. Compared to regulation prices in the Texas (ERCOT) market in 2007-2009, a curtailed wind farm would be cost-competitive with conventional generators less than 1% of the time. Paper 2 supports the simulations in Paper 1 by developing a method to combine long periods of low-frequency wind speed data with realistic simulated high-frequency turbulence. The combined time series of wind speeds retains the non-stationary characteristics of wind speed, such as diurnal variations, the passing of weather fronts, and seasonal variations, but gives a much higher sampling rate. Papers 3 and 4 estimate the hurricane risks to current designs of offshore wind turbines in the U.S. Paper 3 develops analytical probability distributions based on historical hurricane records to predict the distribution of damages to a single wind farm in a given location. Paper 4 uses simulated hurricanes with realistic statistical properties to estimate the correlated risks to all the wind farms in a region and estimate the distribution of aggregate losses over different periods. Both papers find hurricane risks are small for current turbine designs in New England and the Mid-Atlantic, but the risks in the Gulf of Mexico and the Southeast are significant enough to warrant new, stronger designs. Hurricane risks could be reduced almost an order of magnitude by ensuring that turbines can continue yawing to track the wind direction even if grid power is lost.
Universal Scaling Laws in Schottky Heterostructures Based on Two-Dimensional Materials
Creators: name: Ang, Yee Sin
name: Yang, Hui Ying
name: Ang, L. K.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We identify a new universality in the carrier transport of two-dimensional(2D)-material-based Schottky heterostructures. We show that the reversed saturation current ($\mathcal{J}$) scales universally with temperature ($T$) as $ \log(\mathcal{J}/T^β) \propto -1/T$, with $β= 3/2$ for lateral Schottky heterostructures and $β= 1$ for vertical Schottky heterostructures, over a wide range of 2D systems including nonrelativistic electron gas, Rashba spintronic system, single and few-layer graphene, transition metal dichalcogenides and thin-films of topological solids. Such universalities originate from the strong coupling between the thermionic process and the in-plane carrier dynamics. Our model resolves some of the conflicting results from prior works and is in agreement with recent experiments. The universal scaling laws signal the breakdown of $β=2$ scaling in the classic diode equation widely-used over the past 60 years. Our findings shall provide a simple analytical scaling for the extraction of the Schottky barrier height in 2D-material-based heterostructure, thus paving way for both fundamental understanding of nanoscale interface physics and applied device engineering.
description: 6 pages, 2 figures, revised version v3 with new title
A user journey in OpenAIRE services through the lens of repository managers
Creators: name: Mack, Leonard
name: Príncipe, Pedro
name: Manghi, Paolo
name: Schirrwagen, Jochen
name: Vieira, André
Publisher: name: Zenodo
Year: 2019
Subjects: OpenAIRE
Repositories infrastructure network
OpenAIRE dashboard for Content providers
broker service

description: OpenAIRE is the European Union initiative for an Open Access Infrastructure for Research in Europe that aims to establish an open and sustainable scholarly communication infrastructure responsible for the overall management, analysis, manipulation, provision, monitoring and cross-linking of all research outcomes (publications, related datasets, software and services) across existing, planned and future repositories. In the new phase of OpenAIRE, among the project's goals, there is the one to repackage OpenAIRE services providing them as complete products to the final users. This workshop puts forward an interactive session aiming to provide detailed information on the main services and tools targeting content providers and in which OpenAIRE team foresee to collect contributions from the repository manager's community to further develop the portfolio of services offered by OpenAIRE. The workshop will provide an interactive demo of the dashboard for content providers tools (repositories registration and validation, collection monitor and content enrichments), detailing mainly the catch-all broker service functionalities, such as the metadata enrichments and the usage statistics service. Additionally, this all day workshop will introduce attendees the new content acquisition policy, the Guidelines for Literature Repository Managers version 4.0 and the OpenAIRE graph.
THE EFFECT OF GLUE DRUG ADDICTION AMONG THE STREETS CHILDREN S HEALTH IN WABRI DISTRICT MOGADISHU SOMALIA
Creators: name: Isse, Mohamed Abdi
Publisher: name: Zenodo
Year: 2025
Subjects: EFFECT OF GLUE DRUG ADDICTION AMONG THE STREETS CHILDREN S HEALTH IN WABRI DISTRICT MOGADISHU SOMALIA

description: ABSTRACT

 

The term “glue‐sniffing” has come to be applied, in a general way, to all kinds of solvent abuse by inhalation. Glue‐sniffing is usually taken by the young children as a forerunner to alcohol abuse, and probably, it became substitute because of its low cost, readily availability and provides faster onset of action
Superconducting Phases in Lithium Decorated Graphene LiC 6
Creators: name: Gholami, Rouhollah
name: Moradian, Rostam
name: Moradian, Sina
name: Pickett, Warren E.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A study of possible superconducting phases of graphene has been constructed in detail. A realistic tight binding model, fit to ab initio calculations, accounts for the Li-decoration of graphene with broken lattice symmetry, and includes $s$ and $d$ symmetry Bloch character that influences the gap symmetries that can arise. The resulting seven hybridized Li-C orbitals that support nine possible bond pairing amplitudes. The gap equation is solved for all possible gap symmetries. One band is weakly dispersive near the Fermi energy along $Γ\rightarrow M$ where its Bloch wave function has linear combination of $d_{x^2-y^2}$ and $d_{xy}$ character, and is responsible for $ d_{x^{2}-y^{2}}$ and $d_{xy}$ pairing with lowest pairing energy in our model. These symmetries almost preserve properties from a two band model of pristine graphene. Another part of this band, along $K\rightarrow Γ$, is nearly degenerate with upper $s$ band that favors extended $s$ wave pairing which is not found in two band model. Upon electron doping to a critical chemical potential $μ_1=0.22 eV$ the pairing potential decreases, then increases until a second critical value $μ_2$=1.3 eV at which a phase transition to a new phase which is not appear in two band model. This phase in the pristine graphene converts to usual extended s-wave pairing.
title: Transcriptions du Registre des écrous du Châtelet de Paris, Y5266 , page #1000850
Creators: name: Brochard, Pierre
name: Claustre, Julie
name: Regazzi, Hugo
name: Claustre, Julie
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Châtelet de Paris
subject: http://www.idref.fr/032506511/id

description: Transcriptions de certaines pages du Registre des écrous du Châtelet de Paris, Y5266
Les images liées sont indiquées par le champ Source.

Les transcriptions sont dans deux formats : Txt et PageXml.
description: Source: http://www.nakala.fr/data/11280/54ba84a4
description: Relation: https://lamop.hypotheses.org/
description: Bibliographic citation: Hugo Regazzi, Pierre Brochard, Julie Claustre - Transcriptions du Registre des écrous du Châtelet de Paris, Y5266 , page #1000850
description: Transcriptions du Registre des écrous du Châtelet de Paris, Y5266, page #1000850 - Format Text
description: Transcriptions du Registre des écrous du Châtelet de Paris, Y5266, page #1000850 - Format PageXml
Core electrons in the electronic stopping of heavy ions
Creators: name: Ullah, Rafi
name: Artacho, Emilio
name: Correa, Alfredo A.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: Electronic stopping power in the \(\mathrm{keV/Å}\) range is accurately calculated from first principles. The energy loss to electrons in self-irradiated nickel, a paradigmatic transition metal, using real-time time-dependent density functional theory is studied. Different core states are explicitly included in the simulations to understand their involvement in the dissipation mechanism. The experimental data are well reproduced in the projectile velocity range of \(1.0 - 12.0~\mathrm{atomic~units}\). The core electrons of the projectile are found to open additional dissipation channels as the projectile velocity increases. Almost all of the energy loss is accounted for, even for high projectile velocities, when core electrons as deep as \(2s\) are explicitly treated. In addition to their expected excitation at high velocities, a flapping dynamical response of the core electrons is observed at intermediate projectile speeds.
Assembly Planning in Constrained Environments: Building Structures with Multiple Mobile Robots
Creators: name: Heger, Frederik W.
Publisher: name: Carnegie Mellon University
Year: 2010
Subjects: subject: 80101 Adaptive Agents and Intelligent Robotics
subject: FOS: Computer and information sciences

description: Assembly is a task at which robots excel, but only as long as they operate in well-controlled environments such as factories or assembly lines. This thesis presents a comprehensive planning and execution framework that enables mobile manipulator robots to overcome this limitation and assemble large structures in physically challenging environments. In order to be useful in realistic scenarios, the developed system must be robust to inevitably occurring execution-time failures, generate plans efficiently and scale to large problems including complex structures being assembled by multiple robots. Complex tasks today are approached in one of two fundamental ways: as a problem of sequencing abstract tasks, or as fine-grained motion planning problems. The prior has no problem reasoning about large problems, but lacks understanding of the physical context of the scenario, whereas the latter considers physical reality but lacks the scope for complex scenarios. This thesis develops a graph-based representation that exploits synergies between both methodologies to solve large, physically grounded problems. Beyond planning complex assembly tasks, the fundamental challenge for a useful system lies in its ability to successfully execute the planned task even when unforeseen problems occur during operation. Comprehensive repair and re-planning strategies are essential to avoid terminal failures, and ultimate robustness is achieved by allowing an expert operator to assist with error recovery at the behavioral, executive and planning levels as appropriate. Once assembly plans can be executed reliably, the efficiency of plan generation can be improved both when finding the initial plan, as well as when repair and re-planning become necessary. The techniques presented in this thesis reduce the time required to generate an assembly plan by 2.5 orders of magnitude and more compared to a baseline solution performing best-first search over possible assembly steps. These improvements make the system practical to be applied to larger problems. Hierarchical problem decomposition, as well as computational and physical parallelization, allow the framework to scale to large structures of hundreds or thousands of components being assembled by multiple robots. The comprehensive assembly planning and execution framework developed in this thesis pushes the boundary of what mobile manipulator robots can accomplish in realistic environments. It provides the high-level intelligence necessary to apply low-level capabilities to very large problems, and it includes error recovery strategies to cope with inevitable exceptions while performing complex and challenging tasks.
Four Zero Neutrino Yukawa Textures in the Minimal Seesaw Framework
Creators: name: Branco, Gustavo C.
name: Emmanuel-Costa, David
name: Rebelo, M. N.
name: Roy, Probir
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate, within the Type I seesaw framework, the physical implications of zero textures in the Yukawa couplings which generate the neutrino Dirac mass matrix $m_D$. It is shown that four is the maximal number of texture zeroes compatible with the observed leptonic mixing and the assumption that no neutrino mass vanishes. We classify all allowed four-zero textures of $m_D$ into two categories with three classes each. We show that the different classes, in general, admit CP violation both at low and high energies. We further present the constraints obtained for low energy physics in each case. The r\^ ole of these zero textures in establishing a connection between leptogenesis and low energy data is analysed in detail. It is shown that it is possible in all cases to completely specify the parameters relevant for leptogenesis in terms of light neutrino masses and leptonic mixing together with the unknown heavy neutrino masses.
description: 19 pages, no figures. To appear in Phys. Rev. D. One reference added, minor changes, mainly typo corrections
Additional file 1: of Common step-wise interventions improved primary care clinic visits and reduced emergency department discharge failures: a large-scale retrospective observational study
Creators: name: Schrader, Chet
name: Robinson, Richard
name: Blair, Somer
name: Shaikh, Sajid
name: Ho, Amy
name: DâEtienne, James
name: Kirby, Jessica
name: Cheeti, Radhika
name: Zenarosa, Nestor
name: Wang, Hao
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Mathematical Sciences not elsewhere classified

description: Appendix: A detail definition of different outcome measurements. (DOCX 14 kb)
Context-adaptive research data repository publishing in Chinese Academy of Sciences
Creators: name: Li, Chengzan
name: Zhang, Lili
name: Jiang, Lulu
name: Zhou, Yuanchun
Publisher: name: Zenodo
Year: 2019
Subjects: Data repository; Open data; Data publishing; China;

description: ScienceDB is an open and generic data repository aiming at making scientific data FAIR(Wilkinson et al,2016)since 2016(Zhang et al 2018). ScienceDB mainly serves in three scenarios: long-term data services for data journal publishing; large-scale data services for research networks; and tailored data publishing services to individual research scientists and etc,. (1)For data journal publishing, ScienceDB generally support lifelong data curation and services. For example, China Scientific Data (www.csdata.org) , the first multidisciplinary data journal in China, has published over 170 data papers with 70% of all the linked datasets submit to ScienceDB. (2)For research teams/networks, ScienceDB supports complex management models for major research projects featuring inner communication and valuable data sharing. In CASEarth project, ScienceDB has supported over 100 sub-programs to summit and preserved over 400TB data covering broad geoscience and related subjects. (3)For individual research scientists data publishing, data repository publishing features user friendly services such as tailored tools for data curation based on subjects and so on. So far, we have 259,190 page reviews and 3,6000 downloads. And further, connectivity in local and international science community , sustainability and broader social impacts shall also help contribute to the long-term development of data repository publishing.