cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Partner symmetries of the complex Monge-Ampere equation yield hyper-Kahler metrics without continuous symmetries
Creators: name: Malykh, A. A.
name: Nutku, Y.
name: Sheftel, M. B.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Differential Geometry (math.DG)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q75, 83C15

description: We extend the Mason-Newman Lax pair for the elliptic complex Monge-Ampère equation so that this equation itself emerges as an algebraic consequence. We regard the function in the extended Lax equations as a complex potential. We identify the real and imaginary parts of the potential, which we call partner symmetries, with the translational and dilatational symmetry characteristics respectively. Then we choose the dilatational symmetry characteristic as the new unknown replacing the Kähler potential which directly leads to a Legendre transformation and to a set of linear equations satisfied by a single real potential. This enables us to construct non-invariant solutions of the Legendre transform of the complex Monge-Ampère equation and obtain hyper-Kähler metrics with anti-self-dual Riemann curvature 2-form that admit no Killing vectors.
description: submitted to J. Phys. A
Parameter Optimization and Learning in a Spiking Neural Network for UAV Obstacle Avoidance targeting Neuromorphic Processors
Creators: name: Salt, Llewyn
name: Howard, David
name: Indiveri, Giacomo
name: Sandamirskaya, Yulia
Publisher: name: arXiv
Year: 2019
Subjects: subject: Neural and Evolutionary Computing (cs.NE)
subject: Emerging Technologies (cs.ET)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Neurons and Cognition (q-bio.NC)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: The Lobula Giant Movement Detector (LGMD) is an identified neuron of the locust that detects looming objects and triggers the insect's escape responses. Understanding the neural principles and network structure that lead to these fast and robust responses can facilitate the design of efficient obstacle avoidance strategies for robotic applications. Here we present a neuromorphic spiking neural network model of the LGMD driven by the output of a neuromorphic Dynamic Vision Sensor (DVS), which incorporates spiking frequency adaptation and synaptic plasticity mechanisms, and which can be mapped onto existing neuromorphic processor chips. However, as the model has a wide range of parameters, and the mixed signal analogue-digital circuits used to implement the model are affected by variability and noise, it is necessary to optimise the parameters to produce robust and reliable responses. Here we propose to use Differential Evolution (DE) and Bayesian Optimisation (BO) techniques to optimise the parameter space and investigate the use of Self-Adaptive Differential Evolution (SADE) to ameliorate the difficulties of finding appropriate input parameters for the DE technique. We quantify the performance of the methods proposed with a comprehensive comparison of different optimisers applied to the model, and demonstrate the validity of the approach proposed using recordings made from a DVS sensor mounted on a UAV.
The First, and Still Best, Method for Non-market Valuation
Creators: name: Hertzler, Greg
name: Hertzler, Greg
Publisher: name: Unknown
Year: 2006
Subjects: Environmental Economics and Policy
Research Methods/ Statistical Methods

description: Harold Hotelling proposed the first method for non-market valuation. Most of us believe this is the Travel Cost Method. In this paper I argue that the first method is from Hotelling's seminal study on the extraction of exhaustible resources. The first method is dynamic optimisation as applied to the management of natural resources. Dynamic optimisation imputes the price of stocks that are neither bought nor sold in a market. Non-market valuation for the environment is usually a question of imputing the value of environmental stocks. Pollutants are almost always stocks. Ecosytem services are flows from environmental stocks. Greenhouse gases, biodiversity, wildlife, national parks, old growth forests, all are stocks. Indeed our ecosystem, is a system of stocks. Yet our methods for non-market valuation, the Travel Cost Method, Hedonic Pricing, Contingent Valuation, Choice Modelling and the Random Utility Model, are based on static theories of consumer behavior. They do not model environmental stocks, nor include other participants in the economy such as producers and citizens who, in effect, own the ecosystem. In this paper, I develop a simple but dynamic model of an economy with ecosystem stocks and services. The model shows how the price of ecosystem services can be discovered, provides an example of demand and determines the willingness to accept and willingness to pay for ecosystem services. I conclude that models based on consumer behaviour are misleading. Consumers are complicit with producers in despoiling the environment. Those willing to pay for a healthy ecosystem are citizens.
Analytical solution of the optimal laser control problem in two-level systems
Creators: name: Garcia, Martin E.
name: Grigorenko, Ilia
Publisher: name: arXiv
Year: 2003
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The optimal control of two-level systems by time-dependent laser fields is studied using a variational theory. We obtain, for the first time, general analytical expressions for the optimal pulse shapes leading to global maximization or minimization of different physical quantities. We present solutions which reproduce and improve previous numerical results.
description: 12 pages, 2 figures
Effect of uniaxial and biaxial crystal-field potential on magnetic properties of a mixed spin-1/2 and spin-1 Ising model on honeycomb lattice
Creators: name: Strecka, Jozef
name: Jascur, Michal
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Magnetic properties of a mixed spin-1/2 and spin-1 Ising model on honeycomb lattice are exactly investigated within the framework of generalized star-triangle mapping transformation. The particular attention is focused on the effect of uniaxial and biaxial crystal-field anisotropies that basically influence the magnetic behaviour of the spin-1 atoms. Our results for the basic thermodynamic quantities, as well as the dynamical time-dependent autocorrelation function indicate the spin tunneling between the $| +1>$ and $| - 1>$ states in the magnetically ordered phase.
description: 16 pages, 7 figures, submitted to Phys. Rev. B
Small Holders under Risk
Creators: name: Hertzler, Greg
name: MacAulay, T. Gordon
name: Hertzler, Greg
name: MacAulay, T. Gordon
Publisher: name: Unknown
Year: 2006
Subjects: Agricultural and Food Policy
Consumer/Household Economics
International Development
Production Economics

description: A generalisation of previous household models is developed to include production, consumption, storage, labour and land allocation decisions under price, yield, storage and investment risks. Implications drawn from this model include, that consumption can be a hedge against price risk and that supply curves are shifted by consumption and by storage decisions. Production possibilities frontiers depend upon the households’ aversion to risk and the allocation of land to different crops is affected by every other decision the household makes. Using hypothetical data and focussed on farm households in Vietnam, parameters are estimated for the model and simulations are carried out to examine the consequences of land exchanges and shifts in technology.
Prognostic factors for cancer patient admitted to a medical intensive care unit
Creators: name: Baylot, Camille
name: Francopoulo, Adrienne
name: Gross-Goupil, Marine
name: Quivy, Amandine
name: Guisset, Olivier
name: Hilbert, Gilles
name: Frison, Eric
name: Ravaud, Alain
name: Daste, Amaury
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Biotechnology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Prognostic factors for cancer patient admitted to a medical intensive care unit
title: System Analysis and Opportunities for Optimization of Pneumatic Systems in Manufacturing Plants
Creators: name: Kostukov, Rosen
name: Nachev, Veselin
name: Titova, Tanya
Publisher: name: TEM Journal
Year: 2019

description: Compressed air is a reliable source of energy that is widely used in industry and service sectors thanks to the ease and safety of production and processing. In most industrial facilities, compressed air is needed for many aspects of their operations. The nature of the respective production (industry), its scale and the structure of the technological equipment, the life cycle stage, make the task of optimizing pneumatic systems multivariate. In view of this, it is difficult to find a single solution for improving the energy efficiency of using compressed air. The present work aims at systematizing the main factors, the degree of their influence and the possibilities of saving of pneumatic energy. The analysis and evaluation were performed on the basis of quantitative indicators from leading industrial companies in Bulgaria. Keywords – pneumatic systems optimization, estimate energy saving, reducing compressed air use.
A public-private partnership for the express development of antiviral leads: a perspective view
Creators: name: Mayburd, Anatoly
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: The COVID-19 pandemic raises the question of strategic readiness for emergent pathogens. The current case illustrates that the cost of inaction can be higher in the future. The perspective article proposes a dedicated, government-sponsored agency developing anti-viral leads against all potentially dangerous pathogen species. The author explores the methods of computational drug screening and in-silico synthesis and proposes a specialized government-sponsored agency focusing on leads and functioning in collaboration with a network of labs, pharma, biotech firms, and academia, in order to test each lead against multiple viral species. The agency will employ artificial intelligence and machine learning tools to cut the costs further. The algorithms are expected to receive continuous feedback from the network of partners conducting the tests. The author proposes a bionic principle, emulating antibody response by producing a combinatorial diversity of high q uality generic antiviral leads, suitable for multiple potentially emerging species. The availability of multiple pre-tested agents and an even greater number of combinations would reduce the impact of the next outbreak. The methodologies developed in this effort are likely to find utility in the design of chronic disease therapeutics.
Thermoelectric signature of individual skyrmions
Creators: name: Scarioni, Alexander Fernández
name: Barton, Craig
name: Corte-León, Héctor
name: Sievers, Sibylle
name: Hu, Xiukun
name: Ajejas, Fernando
name: Legrand, William
name: Reyren, Nicolas
name: Cros, Vincent
name: Kazakova, Olga
name: Schumacher, Hans W.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We experimentally study the thermoelectrical signature of individual skyrmions in chiral Pt/Co/Ru multilayers. Using a combination of controlled nucleation, single skyrmion annihilation, and magnetic field dependent measurements the thermoelectric signature of individual skyrmions is characterized. The observed signature is explained by the anomalous Nernst effect of the skyrmions spin structure. Possible topological contributions to the observed thermoelectrical signature are discussed. Such thermoelectrical characterization allows for non-invasive detection and counting of skyrmions and enables fundamental studies of topological thermoelectric effects on the nano scale
Mean-field model of jet formation in a collapsing Bose-Einstein condensate
Creators: name: Adhikari, Sadhan K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We perform a systematic numerical study, based on the time-dependent Gross-Pitaevskii equation, of jet formation in collapsing and exploding Bose-Einstein condensates as in the experiment by Donley et al [2001 Nature 412 295]. In the actual experiment, via a Feshbach resonance, the scattering length of atomic interaction was suddenly changed from positive to negative on a pre-formed condensate. Consequently, the condensate collapsed and ejected atoms via explosion. On a disruption of collapse by suddenly changing the scattering length to zero a radial jet of atoms was formed in the experiment. We present a satisfactory account of jet formation under the experimental conditions as well as make predictions beyond experimental conditions which can be verified in future experiments.
description: 12 pages, 8 figures, Accepted in J. Phys. B
Dynamical Gauge Theory for the XY Gauge Glass Model
Creators: name: Ozeki, Yukiyasu
Publisher: name: arXiv
Year: 2003
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Dynamical systems of the gauge glass are investigated by the method of the gauge transformation.Both stochastic and deterministic dynamics are treated. Several exact relations are derived among dynamical quantities such as equilibrium and nonequilibrium auto-correlation functions, relaxation functions of order parameter and internal energy. They provide physical properties in terms of dynamics in the SG phase, a possible mixed phase and the Griffiths phase, the multicritical dynamics and the aging phenomenon. We also have a plausible argument for the absence of re-entrant transition in two or higher dimensions.
description: 3 figures
Robotics in Dentistry: The Next Generation Technology
Creators: name: Das, Hindol
Publisher: name: figshare
Year: 2020
Subjects: subject: 110599 Dentistry not elsewhere classified
subject: FOS: Clinical medicine

description: With advancements in technology, robots are being used in every sector of science today; because of their ability to do precise work without exhaustion it has made its way into dentistry as well. This short review of literature discusses the application of dental robotics ranging from patient robots to robots used in endodontics, oral surgery, implantology, prosthodontics and orthodontics.
The XMM-Newton hard band wide angle Survey
Creators: name: Carangelo, N.
name: Molendi, S.
name: collaboration, the Hellas2XMM
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the preliminary findings of our XMM-Newton Survey performed in the hard band [7-11] keV. The survey covers nearly 30 squares degrees for a total of 112 fields observed. We detected in the [7-11] keV band, down to a limit flux of about 3*10^(-14) erg cm^(-2) s^(-1) a total of 45 sources, 30% of which show strongly absorption. A detailed spectral characterization of these sources allows us to constraint the local N_H distribution.
description: 4 pages; Conference proceeding "Multiwavelength Cosmology", Mykonos, June 2003. Editor M. Plionis. This version is a replacement of an earlier version and includes pdf file
Topological and geometrical restrictions, free-boundary problems and self-gravitating fluids
Creators: name: Pelayo, A.
name: Peralta-Salas, D.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: Differential Geometry (math.DG)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 35Q35; 53Z05

description: Let (P1) be certain elliptic free-boundary problem on a Riemannian manifold (M,g). In this paper we study the restrictions on the topology and geometry of the fibres (the level sets) of the solutions f to (P1). We give a technique based on certain remarkable property of the fibres (the analytic representation property) for going from the initial PDE to a global analytical characterization of the fibres (the equilibrium partition condition). We study this analytical characterization and obtain several topological and geometrical properties that the fibres of the solutions must possess, depending on the topology of M and the metric tensor g. We apply these results to the classical problem in physics of classifying the equilibrium shapes of both Newtonian and relativistic static self-gravitating fluids. We also suggest a relationship with the isometries of a Riemannian manifold.
description: 36 pages. In this new version the analytic representation hypothesis is proved. Please address all correspondence to D. Peralta-Salas
Noise-induced macroscopic bifurcations in globally-coupled chaotic units
Creators: name: De Monte, Silvia
name: d'Ovidio, Francesco
name: Chaté, Hugues
name: Mosekilde, Erik
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Large populations of globally-coupled identical maps subjected to independent additive noise are shown to undergo qualitative changes as the features of the stochastic process are varied. We show that for strong coupling, the collective dynamics can be described in terms of a few effective macroscopic degrees of freedom, whose deterministic equations of motion are systematically derived through an order parameter expansion.
description: Phys. Rev. Lett., accepted
Animal models of Chagas disease and their translational value to drug development
Creators: name: Chatelain, Eric
name: Scandale, Ivan
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Ecology
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: American trypanosomiasis, better known as Chagas disease, is a global public health issue. Current treatments targeting the causative parasite, Trypanosoma cruzi, are limited to two old nitroheterocyclic compounds; new, safer drugs are needed. New tools to identify compounds suitable for parasitological cure in humans have emerged through efforts in drug discovery. Animal disease models are an integral part of the drug discovery process. There are numerous experimental models of Chagas disease described and in use; rather than going through each of these and their specific features, the authors focus on developments in recent years, in particular the imaging technologies that have dramatically changed the Chagas R&D landscape, and provide a critical view on their value and limitations for moving compounds forward into further development. The application of new technological advances to the field of drug development for Chagas disease has led to the implementation of new and robust/standardized in vivo models that contributed to a better understanding of host/parasite interactions. These new models should also build confidence in their translational value for moving compounds forward into clinical development.
Characterisation of the dynamical quantum state of a zero temperature Bose-Einstein condensate
Creators: name: Rogel-Salazar, J.
name: Choi, S.
name: New, G. H. C.
name: Burnett, K.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We describe the quantum state of a Bose-Einstein condensate at zero temperature. By evaluating the Q-function we show that the ground state of Bose-Einstein condensate under the Hartree approximation is squeezed. We find that multimode Schroedinger cat states are generated as the condensate evolves in a ballistic expansion.
description: 13 pages, 6 figures
Universal features of JIMWLK and BK evolution at small x
Creators: name: Rummukainen, Kari
name: Weigert, Heribert
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In this paper we present the results of numerical studies of the JIMWLK and BK equations with a particular emphasis on the universal scaling properties and phase space structure involved. The results are valid for near zero impact parameter in DIS. We demonstrate IR safety due to the occurrence of a rapidity dependent saturation scale Q_s(τ). Within the set of initial conditions chosen both JIMWLK and BK equations show remarkable agreement. We point out the crucial importance of running coupling corrections to obtain consistency in the UV. Despite the scale breaking induced by the running coupling we find that evolution drives correlators towards an asymptotic form with near scaling properties. We discuss asymptotic features of the evolution, such as the τ- and A-dependence of Q_s away from the initial condition.
description: 30 pages
title: 01_2276
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
A Note on Computable Embeddings for Ordinals and Their Reverses
Creators: name: Bazhenov, Nikolay
name: Vatev, Stefan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: F.4.1
subject: 03C57, 03D45

description: We continue the study of computable embeddings for pairs of structures, i.e. for classes containing precisely two non-isomorphic structures. Surprisingly, even for some pairs of simple linear orders, computable embeddings induce a non-trivial degree structure. Our main result shows that although $\{ω\cdot 2, ω^\star \cdot 2\}$ is computably embeddable in $\{ω^2, {(ω^2)}^\star\}$, the class $\{ω\cdot k,ω^\star \cdot k\}$ is \emph{not} computably embeddable in $\{ω^2, {(ω^2)}^\star\}$ for any natural number $k \geq 3$.
description: 13 pages, accepted to CiE 2020
The Europeanisation of agri-environmental policy in Poland
Creators: name: Hadynska, Anna
name: Hadynska, Anna
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: Institutional and Behavioral Economics
subject: agri-environmental policy
subject: Europeanisation
subject: institutional adjustment
subject: Poland
subject: Agrarumweltpolitik
subject: Europäisierung
subject: institutionelle Anpassung
subject: Polen

description: This paper seeks to answer the following question: what are the impacts of European agri-environmental policy (AEP) on member states’ policy patterns? The concept of Europeanisation is employed, as it relates to the adaptation of domestic policies and policy instruments to existing EU legislation. An analysis of the extent to which the European level of policy-making has affected the emergence and further development of the AEP in Poland will be undertaken. Additionally, the paper examines the way in which Poland has applied Agri-environmental Schemes (AESs) and what effects this has had on the relevant Polish institutions. Empirically, this research draws on semi-structured interviews with key administrative bodies and social actors involved in agri-environmental issues. Dieser Artikel befasst sich mit der folgenden Frage: Welche Auswirkungen hat die Europäische Umweltpolitik auf die Politik der Mitgliedstaaten? Hierfür wird das Konzept der Europäisierung eingesetzt, da es sich um die Adaption der nationalen Politik und der entsprechenden Politikinstrumente an die EU-Gesetzgebung handelt. Im Einzelnen wird untersucht, inwieweit die politische Entscheidungsfindung auf der Europaebene das Hervortreten und die weitere Entwicklung der polnischen Umweltpolitik beeinflusst hat. Des Weiteren werden die Art und Weise der Implementierung der Agrarumweltmaßnahmen sowie ihre Effekte auf die polnischen Institutionen analysiert. Empirisch stützt sich diese Forschung auf teilstandardisierte Interviews mit Schlüsselverwaltungsorganen und sozialen Akteuren, die mit Agrarumweltschutzaufgaben betraut waren.
The Brauer group of analytic K3 surfaces
Creators: name: Huybrechts, Daniel
name: Schroeer, Stefan
Publisher: name: arXiv
Year: 2003
Subjects: subject: Algebraic Geometry (math.AG)
subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 14F22, 14J28, 32L07, 53C26

description: We show that for complex analytic K3 surfaces any torsion class in H^2(X,O_X^*) comes from an Azumaya algebra. In other words, the Brauer group equals the cohomological Brauer group. For algebraic surfaces, such results go back to Grothendieck. In our situation, we use twistor spaces to deform a given analytic K3 surface to suitable projective K3 surfaces, and then stable bundles and hyperholomorphy conditions to pass back and forth between the members of the twistor family.
description: 10 pages. Minor changes, to appear in Int. Math. Res. Not
Drug development for noise-induced hearing loss
Creators: name: Varela-Nieto, Isabel
name: Murillo-Cuesta, Silvia
name: Calvino, Miryam
name: Cediel, Rafael
name: Lassaletta, Luis
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Neuroscience
subject: Pharmacology
subject: Biotechnology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Excessive exposure to noise is a common occurrence that contributes to approximately 50% of the non-genetic hearing loss cases. Researchers need to develop standardized preclinical models and identify molecular targets to effectively develop prevention and curative therapies. In this review, the authors discuss the many facets of human noise-induced pathology, and the primary experimental models for studying the basic mechanisms of noise-induced damage, making connections and inferences among basic science studies, preclinical proofs of concept and clinical trials. Whilst experimental research in animal models has helped to unravel the mechanisms of noise-induced hearing loss, there are often methodological variations and conflicting results between animal and human studies which make it difficult to integrate data and translate basic outcomes to clinical practice. Standardization of exposure paradigms and application of -omic technologies will contribute to improving the effectiveness of transferring newly gained knowledge to clinical practice.
Dairy chain competitiveness in EU’s new member states, candidate and potential candidate countries
Creators: name: Van Berkum, Siemen
name: Van Berkum, Siemen
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Livestock Production/Industries
subject: Productivity Analysis
subject: dairy
subject: supply chain
subject: performance
subject: competitiveness
subject: Milchmarkt
subject: Wertschöpfungskette
subject: Leistung
subject: Wettbewerbsfähigkeit

description: This comparative analysis of structures and performances of the dairy supply chain in 20 south-eastern and eastern European countries shows that even after many years of structural change, the sector is still dominated by small-scale and subsistence farming, which results in weak vertical integration in all countries except the Czech Republic, Slovakia, Cyprus and Malta. Industry performances indicate positive tendencies in the Baltic States and Poland, while the sector faces serious difficulties in others. In Romania, Bulgaria and all (potential) candidate countries, the industry has immense problems complying with food quality and safety standards. Vast investments are needed in all parts of the supply chain to increase productivity and improve the quality of products. A major restructuring of the supply chain is expected in upcoming years. In diesem Artikel wird eine vergleichende Analyse der Strukturen und Leistungen der Milchketten in 20 südost- und osteuropäischen Ländern durchgeführt. Die Ergebnisse zeigen, dass nach vielen Jahren des strukturellen Wandels die Milchketten immer noch von kleinen und Subsistenzwirtschaften dominiert sind, was in schwacher vertikaler Integration in den meisten Ländern resultiert. Ausnahmen bilden hierbei die Tschechische Republik, die Slowakei, Zypern und Malta. Die Leistungsfähigkeit der Milchkette zeigt positive Entwicklungstendenzen in den baltischen Staaten und Polen, während die Ketten anderer Untersuchungsländer ernsthaften Schwierigkeiten gegenüberstehen. Eine der größten Herausforderungen in Rumänien, Bulgarien und allen (potentiellen) Beitrittsländern ist die Adaption der Lebensmittelqualitäts- und Sicherheitsstandards. Beträchtliche Investitionen werden entlang der Milchketten benötigt, um die Produktivität zu erhöhen und die Qualität der Milchprodukte zu verbessern. Intensive Restrukturierung der Milchketten wird in den kommenden Jahren erwartet.
SMT-Friendly Formalization of the Solidity Memory Model
Creators: name: Hajdu, Ákos
name: Jovanović, Dejan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Programming Languages (cs.PL)
subject: Logic in Computer Science (cs.LO)
subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Solidity is the dominant programming language for Ethereum smart contracts. This paper presents a high-level formalization of the Solidity language with a focus on the memory model. The presented formalization covers all features of the language related to managing state and memory. In addition, the formalization we provide is effective: all but few features can be encoded in the quantifier-free fragment of standard SMT theories. This enables precise and efficient reasoning about the state of smart contracts written in Solidity. The formalization is implemented in the solc-verify verifier and we provide an extensive set of tests that covers the breadth of the required semantics. We also provide an evaluation on the test set that validates the semantics and shows the novelty of the approach compared to other Solidity-level contract analysis tools.
description: Authors' manuscript. Published in P. M\"uller (Ed.): ESOP 2020, LNCS 12075, 2020. The final publication is available at Springer via https://doi.org/10.1007/978-3-030-44914-8_9
System of elastic hard spheres which mimics the transport properties of a granular gas
Creators: name: Santos, Andres
name: Astillero, Antonio
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The prototype model of a fluidized granular system is a gas of inelastic hard spheres (IHS) with a constant coefficient of normal restitution $α$. Using a kinetic theory description we investigate the two basic ingredients that a model of elastic hard spheres (EHS) must have in order to mimic the most relevant transport properties of the underlying IHS gas. First, the EHS gas is assumed to be subject to the action of an effective drag force with a friction constant equal to half the cooling rate of the IHS gas, the latter being evaluated in the local equilibrium approximation for simplicity. Second, the collision rate of the EHS gas is reduced by a factor $(1+α)/2$, relative to that of the IHS gas. Comparison between the respective Navier-Stokes transport coefficients shows that the EHS model reproduces almost perfectly the self-diffusion coefficient and reasonably well the two transport coefficients defining the heat flux, the shear viscosity being reproduced within a deviation less than 14% (for $α\geq 0.5$). Moreover, the EHS model is seen to agree with the fundamental collision integrals of inelastic mixtures and dense gases. The approximate equivalence between IHS and EHS is used to propose kinetic models for inelastic collisions as simple extensions of known kinetic models for elastic collisions
description: 20 pages; 6 figures; change of title; few minor changes; accepted for publication in PRE
Issues of learning and teaching mathematics for Ukrainian refugee students in UK schools: videos
Creators: name: Proshkin, Volodymyr
Publisher: name: Loughborough University
Year: 2024
Subjects: classificationCode: 39
subject: Education
classificationCode: 49
subject: Mathematical sciences

description: The issue of learning and teaching mathematics to international students is familiar to UK secondary education. To date, several scientific studies have been implemented that consider various aspects of the specified issue at different levels:· Professional – training of teachers to work with refugee students· Environmental – creation of a friendly learning environment, including through support students for English language learning, trauma, posttraumatic stress disorder (PTSD), the interaction of school and family· Emotional and motivational – ensuring students' motivation through understanding the values of educationThe issue of learning and teaching mathematics to Ukrainian refugees is new in modern pedagogical theory and practice. The identified studies mostly describe individual practices of teaching Ukrainian students in classes in different countries and do not relate to the problems of studying specific academic disciplines, for instance, mathematics. The scientific studies focus mainly on language issues that make learning challenging, psychological issues due to war, and integration issues that make it difficult for students to adapt to a new culture and society.
title: 01_2313
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Polar Molecular Organisation in Liquid Crystals
Creators: name: Vanakaras, A. G.
name: Photinos, D. J.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Various possibilities of polar self-organisation in low molar mass nematic, smectic and columnar liquid crystals are discussed with particular focus on the underlying molecular symmetries and interactions. Distinction is made between vector and pseudovector polarities, their quantification in terms of molecular order parameters and their relation to spontaneous electric polarisation and to molecular chirality. The understanding of the molecular mechanisms that give rise to polar ordering in existing lamellar and columnar phases may be useful for the design of new polar variants of common a-polar liquid crystals. Keywords:Polar Nematics; Ferroelectric Liquid Crystals; Polar Ordering.
description: RevTex4, 10 pages, 8 figures, to be published in Mol. Cryst. Liq. Cryst
GRB 011121: A collimated outflow into wind-blown surroundings
Creators: name: Greiner, J.
name: Klose, S.
name: Salvato, M.
name: Zeh, A.
name: Schwarz, R.
name: Hartmann, D. H.
name: Masetti, N.
name: Stecklum, B.
name: Lamer, G.
name: Lodieu, N.
name: Scholz, R. D.
name: Sterken, C.
name: Gorosabel, J.
name: Burud, I.
name: Rhoads, J.
name: Mitrofanov, I.
name: Litvak, M.
name: Sanin, A.
name: Grinkov, V.
name: Andersen, M. I.
name: Cerón, J. M. Castro
name: Castro-Tirado, A. J.
name: Fruchter, A.
name: Fynbo, J. U.
name: Hjorth, J.
name: Kaper, L.
name: Kouveliotou, C.
name: Palazzi, E.
name: Pian, E.
name: Rol, E.
name: Tanvir, N. R.
name: Vreeswijk, P. M.
name: Wijers, R. A. M. J.
name: Heuvel, E. van den
Publisher: name: arXiv
Year: 2003
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discover a break in the GRB 011121 afterglow light curve after 1.3 days, which implies an initial jet opening angle of about 9 deg. The SED during the first four days is achromatic, and supports the jet origin of this break. The SED during the supernova bump can be best represented by a black body with a temperature of 6000 K. The deduced parameters for the decay slope as well as the spectral index favor a wind scenario, i.e. an outflow into a circum-burst environment shaped by the stellar wind of a massive GRB progenitor. Due to its low redshift of z=0.36, GRB 011121 has been the best example for the GRB-supernova connection until GRB 030329, and provides compelling evidence for a circum-burster wind region expected to exist if the progenitor was a massive star.
description: 22 pages ApJ style, accepted for publication
Social Myths & Taboos in Dentistry- Journal of Dental Health of India
Creators: name: Das, Hindol
Publisher: name: figshare
Year: 2020
Subjects: subject: 110599 Dentistry not elsewhere classified
subject: FOS: Clinical medicine

description: Lack of knowledge and awareness of people on oral heath gave rise to innumerable social misbeliefs in certain communities. In today's world, it is important for every dentist to have knowledge of the trending myths and taboos in dentistry to provide quality dental care to the patients. This short review of literature discusses the various social misconceptions and commonly encountered taboos in dentistry and the reasons for such misbeliefs.
Cell selective manipulation with single beam acoustical tweezers
Creators: name: Baudoin, Michael
name: Thomas, Jean-Louis
name: Sahely, Roudy Al
name: Gerbedoen, Jean-Claude
name: Gong, Zhixiong
name: Sivery, Aude
name: Matar, Olivier
name: Smagin, Nikolay
name: Favreau, Peter
name: Vlandas, Alexis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Acoustical tweezers open major prospects in microbiology for cells and microorganisms contactless manipulation, organization and mechanical properties testing since they are biocompatible, label-free and can exert forces several orders of magnitude larger than their optical counterpart at equivalent wave power. Yet, these tremendous perspectives have so far been hindered by the absence of selectivity of existing acoustical tweezers -- i.e., the ability to select and move objects individually -- and/or their limited resolution restricting their use to large particle manipulation only. Here, we report precise selective contactless manipulation and positioning of human cells in a standard microscopy environment, without altering their viability. Trapping forces of up to $\sim$ 200 pN are reported with less than 2 mW of driving power. The unprecedented selectivity, miniaturization and trapping force are achieved by combining holography with active materials and fabrication techniques derived from the semi-conductor industry to synthesize specific wavefields (called focused acoustical vortices) designed to produce stiff localized traps. We anticipate this work to be a starting point toward widespread applications of acoustical tweezers in fields as diverse as tissue engineering, cell mechano-transduction analysis, neural network study or mobile microorganisms imaging, for which precise manipulation and/or controlled application of stresses is mandatory.
Market power on the edge? An analysis of the German and Hungarian hog markets
Creators: name: Bakucs, Lajos Zoltan
name: Ferto, Imre
name: Hockmann, Heinrich
name: Perekhozhuk, Oleksandr
name: Bakucs, Lajos Zoltan
name: Ferto, Imre
name: Hockmann, Heinrich
name: Perekhozhuk, Oleksandr
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Industrial Organization
subject: Livestock Production/Industries
subject: market power
subject: Germany
subject: Hungary
subject: pork chain
subject: Marktmacht
subject: Deutschland
subject: Ungarn
subject: Schweinefleischkette

description: A structural market model is estimated to analyse the impact of market power on resource allocation in the German and Hungarian pork markets. The regression analyses suggest that market power exists, although on a relatively low level. Moreover, the estimates show that processors might pursue Cournot strategies. In addition, we observe that the market power of processors in the German hog sector is decreasing, while in the Hungarian sector it is increasing. These results are consistent with the structural developments in pork production and pork processing. Ein strukturelles Marktmodell wird geschätzt, um zu beurteilen, ob die Ausübung von Marktmacht die Ressourcenallokation auf den deutschen und ungarischen Schweinefleischmärkten verzerrt. Die Regressionsanalysen zeigen, dass zwar nicht von perfekten Märkten ausgegangen werden kann, die durch die Ausübung von Marktmacht bedingten Verzerrungen allerdings als gering anzusehen sind. Die Schätzungen implizieren, dass die Fleischverarbeiter sich konsistent mit der Verfolgung von Cournot-Strategien verhalten. Zusätzlich deuten die Schätzungen darauf hin, dass die Marktmacht der Verarbeiter im deutschen Schweinesektor abnehmend ist, während sie sich im ungarischen Sektor erhöht. Diese Resultate stimmen mit den strukturellen Entwicklungen in der Schweinefleischproduktion und in der Schweinefleischverarbeitung überein.
Quantum Knot Invariant for Torus Link and Modular Forms
Creators: name: Hikami, Kazuhiro
Publisher: name: arXiv
Year: 2003
Subjects: subject: Mathematical Physics (math-ph)
subject: Geometric Topology (math.GT)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We consider an asymptotic expansion of Kashaev's invariant or the colored Jones function for the torus link T(2,2m). We shall give q-series identity related to these invariants, and show that the invariant is regarded as a limit of q being N-th root of unity of the Eichler integral of the modular form of weight 3/2.
description: 24 pages
Estimating internal transaction costs: the case of corporate dairy farms in Russia’s Moscow oblast
Creators: name: Svetlov, Nikolai M.
name: Svetlov, Nikolai M.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Institutional and Behavioral Economics
subject: Livestock Production/Industries
subject: Productivity Analysis
subject: transaction costs
subject: output allocation
subject: milk
subject: corporate farms
subject: Russia
subject: Transaktionskosten
subject: Outputallokation
subject: Milch
subject: große bis mittelgroße Betriebe
subject: Russland

description: The paper develops a methodological framework for estimating internal transaction costs from observed input-output mixes and prices. The empirical model is a modified DEA. This framework is applied to corporate dairy farms located in Russia’s Moscow oblast. The estimates provided that internal transaction costs significantly distort the allocation of marketable output and in addition hamper the evolution of more efficient farm structures. Cutting the internal transaction costs should be a priority of regional and federal agricultural development. Dieser Beitrag entwickelt eine Methode für die Schätzung der internen Transaktionskosten mit Hilfe von beobachteten Outputmengen und -preisen. Das empirische Modell ist ein modifiziertes DEA Programm. Berechnungen wurden für große Milchviehbetriebe im Oblast Moskau durchgeführt. Die Schätzungen ergaben, dass die internen Transaktionskosten extrem hoch sind und nicht nur zu signifikanten allokativen Verzerrungen führen, sondern darüber hinaus den strukturellen Wandel behindern. Die Verringerung der internen Transaktionskosten sollte von daher eine hohe Priorität in der regionalen und föderalen Agrarpolitik haben.
What is the length of a knot in a polymer?
Creators: name: Marcone, B.
name: Orlandini, E.
name: Stella, A. L.
name: Zonta, F.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We give statistical definitions of the length, l, of a loose prime knot tied into a long, fluctuating ring macromolecule. Monte Carlo results for the equilibrium, good solvent regime show that < l > ~ N^t, where N is the ring length and t ~ 0.75 is independent of the knot topology. In the collapsed regime below the theta temperature, length determinations based on the entropic competition of different knots within the same ring show delocalization (t~1).
description: 9 pages, 5 Postscript figures