cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
String breaking with dynamical Wilson fermions
Creators: name: Bali, G. S.
name: Duessel, Th.
name: Lippert, Th.
name: Neff, H.
name: Prkacin, Z.
name: Schilling, K.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We present results of our ongoing determination of string breaking in full QCD with N_f=2 Wilson fermions. Our investigation of the fission of the static quark-antiquark string into a static-light meson-antimeson system is based on dynamical configurations of size 24^3 x 40 produced by the TxL collaboration. Combining various optimization methods we determine the matrix elements of the two-by-two system with so far unprecedented accuracy. The all-to-all light quark propagators occurring in the transition element are computed from eigenmodes of the Hermitian Wilson-Dirac matrix complemented by stochastic estimates in the orthogonal subspace. We observe a clear signature for level-splitting between ground state and excited potential. Thus, for the first time, string breaking induced by sea quarks is observed in a simulation of 4-dimensional lattice-QCD.
description: 3 pages, 3 figures, contribution to Lattice 2004
PRELIMINARY STUDIES ON THE MACROPROPAGATION OF TREES NATIVE TO THE U.S. VIRGIN ISLANDS
Creators: name: O'Donnell, J. J.
name: O'Reilly, R. G.
name: Henderson, V.
name: O'Donnell, J. J.
name: O'Reilly, R. G.
name: Henderson, V.
Publisher: name: Unknown
Year: 1997
Subjects: Crop Production/Industries
Demand and Price Analysis

description: Due to renewed interest in the use of native tree species for landscaping and urban forestry purposes in the USVI, demand for these plants has grown. Many of these trees are not readily available, difficult to collect seed from, or extremely slow-growing. Preliminary studies were conducted to assess the potential for propagating 12 native trees vegetatively. Treatments were five commercially-available rooting hormones (RooTone, Dip'NGrow, Hormex 16, 30 and 45) and a distiiled-water control. Cecropia peltata, Citharexylum fruticosum, Pisonia subcordata and Tabebuia heterophylla cuttings produced roots in all treatments. Species that did not root by cuttings were airlayered with two commercial rooting hormones (Dip'NGrow, Hormex 30) and a distiiled-water control as treatments. Only Guaiacum officinale and Mammea americana airlayers produced roots. These initial studies indicate that Cecropia peltata, Citharexylum fruticosum, Pisonia subcordata and Tabebuia heterophylla can be successfully rooted using standard cutting practices. There is some indication that Guaiacum officinale and Mammea americana may be propagated by airlayering. Further research needs to be conducted to determine procedures for the induction of roots in Calophyllum calaba, Capparis cynophallophora, Cordia nitida, Cordia rickseckerii, Inga laurina and Zanthoxylumflavum.
A complete hierarchy for the pure state marginal problem in quantum mechanics
Creators: name: Yu, Xiao-Dong
name: Simnacher, Timo
name: Wyderka, Nikolai
name: Nguyen, H. Chau
name: Gühne, Otfried
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Clarifying the relation between the whole and its parts is crucial for many problems in science. In quantum mechanics, this question manifests itself in the quantum marginal problem, which asks whether there is a global pure quantum state for some given marginals. This problem arises in many contexts, ranging from quantum chemistry to entanglement theory and quantum error correcting codes. In this paper, we prove a correspondence of the marginal problem to the separability problem. Based on this, we describe a sequence of semidefinite programs which can decide whether some given marginals are compatible with some pure global quantum state. As an application, we prove that the existence of multiparticle absolutely maximally entangled states for a given dimension is equivalent to the separability of an explicitly given two-party quantum state. Finally, we show that the existence of quantum codes with given parameters can also be interpreted as a marginal problem, hence, our complete hierarchy can also be used.
description: 19 pages, 3 figures; close to the published version
CARACTERIZACION DE RIZOBACTERIAS DE LA Mucuna deeringiana Y EL PLATANERO
Creators: name: T., I. Natalia Salas
name: Ayala, R. Vargas
name: T., I. Natalia Salas
name: Ayala, R. Vargas
Publisher: name: Unknown
Year: 1997
Subjects: Agricultural and Food Policy

description: Muestras de suelo y raices tomadas de parcelas con mucuna, platanero y mucuna-platanero en asociaciôn fueron evaluadas con el objetîvo de determinar poblaciones de bacterias de la rizosfera. Las rizobacterias se aislaron en Agar de Soya Tripticasa al 5% usando el método de dilution seriada. Posteriormente, se aislaron y purificaron 10 rizobacterias de la mucuna (6 Gram-negativas, y 4 Gram-positivas) y 7 rizobacterias del platanero (4 Gram-negativas y 3 Gram-positivas) para un total de 17 bacterias aisladas. Se realizô la tinciôn de esporas con oxalato verde de malaquita al 5%, a sie te bacterias Grampositivas, determinàndose dos rizobacterias formadoras de esporas. Estudios in vitro demostraron que dos de las bacterias identifïcadas como Gram-negativas presentaron un efecto atrayente a nematodos del platanero. Sin embargo, rizobacterias Gram-positivas no mostraron atracciôn ai nematodo. Los resultados sugieren que bacterias provenientes de la rizosfera de mucuna y platanero podrian estar relacionadas con la supresiôn ο atracciôn de nematodos. El aislar y cuantificar componentes de la rizosfera con posibles propiedades antagonlstas podrian résulter en una nueva alternativa para el manejo de nematodos en el platanero.
Deep Learning for Community Detection: Progress, Challenges and Opportunities
Creators: name: Liu, Fanzhen
name: Xue, Shan
name: Wu, Jia
name: Zhou, Chuan
name: Hu, Wenbin
name: Paris, Cecile
name: Nepal, Surya
name: Yang, Jian
name: Yu, Philip S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Social and Information Networks (cs.SI)
subject: Artificial Intelligence (cs.AI)
subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: As communities represent similar opinions, similar functions, similar purposes, etc., community detection is an important and extremely useful tool in both scientific inquiry and data analytics. However, the classic methods of community detection, such as spectral clustering and statistical inference, are falling by the wayside as deep learning techniques demonstrate an increasing capacity to handle high-dimensional graph data with impressive performance. Thus, a survey of current progress in community detection through deep learning is timely. Structured into three broad research streams in this domain - deep neural networks, deep graph embedding, and graph neural networks, this article summarizes the contributions of the various frameworks, models, and algorithms in each stream along with the current challenges that remain unsolved and the future research opportunities yet to be explored.
description: Accepted Paper in the 29th International Joint Conference on Artificial Intelligence (IJCAI 20), Survey Track
Lo SME e il sistema monetario internazionale: verso una maggiore stabilità. (The EMS and the international monetary system: towards greater stability)
Creators: name: SARCINELLI, M.
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: EMS, European financial integration, ECU, monetary stability
subject: E42, F36

description: Il sistema monetario europeo ( SME) è un tentativo di raggiungere una maggiore stabilità delle relazioni monetarie tra gli Stati membri della Comunità Europea . L'autore esamina i fondamenti teorici di tale sistema prima di discutere l'esperienza dello SME fin dalla sua istituzione nel 1978. Particolare attenzione è dedicata al problema di armonizzare i differenti obiettivi monetari degli Stati membri all'interno dello SME e il ruolo della unità monetaria europea per ottenere l'armotizzazione . Questo porta ad un'analisi di come una maggiore stabilità può essere raggiunta tra lo SME e altre aree valutarie e di come la stabilità monetaria internazionale può essere migliorata. The European Monetary System (EMS) is an attempt to achieve greater stability of monetary relationships between member states of the European Community. The author examines the theoretical foundations of such a scheme before discussing the experience of the EMS since its establishment in 1978. Particular attention is paid to the problem of harmonising the different monetary objectives of member states within the EMS and the role of the European Currency Unit in achieving harmonisation. This leads to an analysis of how greater stability may be achieved between the EMS and other currency areas and of how international monetary stability may be improved. JEL: E42, F36
description: Moneta e Credito, V. 38, N. 152 (1985)
The Noncommutative Quadratic Stark Effect For The H-Atom
Creators: name: Chair, Noureddine
name: Dalabeeh, Mohammad A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using both the second order correction of perturbation theory and the exact computation due to Dalgarno-Lewis, we compute the second order noncommutative Stark effect,i.e., shifts in the ground state energy of the hydrogen atom in the noncommutative space in an external electric field. As a side result we also obtain a sum rule for the mean oscillator strength. The energy shift at the lowest order is quadratic in both the electric field and the noncommutative parameter $θ$. As a result of noncommutative effects the total polarizability of the ground state is no longer diagonal.
description: 7 pages, no figures
DEVELOPMENT OF SUSTAINABLE TREE CROP PRODUCTION SYSTEMS FOR HILLSIDES IN HIGH RAINFALL AREAS IN THE CARIBBEAN
Creators: name: Roberts-Nkrumah, L. B.
name: Brathwaite, R. A. I.
name: Roberts-Nkrumah, L. B.
name: Brathwaite, R. A. I.
Publisher: name: Unknown
Year: 1997
Subjects: Crop Production/Industries
Land Economics/Use

description: The paper describes a project being undertaken by the Faculty of Agriculture and Natural Sciences, University of the West Indies, aimed at developing commercially viable tree crop production systems to sustain soil fertility on locations prone to erosion in the Caribbean. Major emphasis is being placed on intensified use of tree crops to achieve yearround soil cover. A multidisciplinary approach which embraces crop management practices including integrated pest management, and improve systems for post-harvest handling and commodity utilization will be applied.
$s$-$d$ model for local and nonlocal spin dynamics in laser-excited magnetic heterostructures
Creators: name: Beens, Maarten
name: Duine, Rembert A.
name: Koopmans, Bert
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We discuss a joint microscopic theory for the laser-induced magnetization dynamics and spin transport in magnetic heterostructures based on the $s$-$d$ interaction. Angular momentum transfer is mediated by scattering of itinerant $s$ electrons with the localized ($d$ electron) spins. We use the corresponding rate equations and focus on a spin one-half $d$ electron system, leading to a simplified analytical expression for the dynamics of the local magnetization that is coupled to an equation for the non-equilibrium spin accumulation of the $s$ electrons. We show that this description converges to the microscopic three-temperature model in the limit of a strong $s$-$d$ coupling. The equation for the spin accumulation is used to introduce diffusive spin transport. The presented numerical solutions show that during the laser-induced demagnetization in a ferromagnetic metal a short-lived spin accumulation is created that counteracts the demagnetization process. Moreover, the spin accumulation leads to the generation of a spin current at the interface of a ferromagnetic and non-magnetic metal. Depending on the specific magnetic system, both local spin dissipation and interfacial spin transport are able to enhance the demagnetization rate by providing relaxation channels for the spin accumulation that is build up during demagnetization in the ferromagnetic material.
description: Published version
title: Advanced graphical model decoration with EMF profiles
Creators: name: Bašić, Bećir
Publisher: name: TU Wien
Year: 2015
Subjects: subject: EMF Profiles
subject: UML
subject: DSMLs
subject: extension mechanism
subject: GMF
subject: EMF Profiles
subject: UML
subject: DSMLs
subject: extension mechanism
subject: GMF

description: EMF Profiles is an adaptation of the well-known Unified Modeling Language (UML) profile concept to Domain Specific Modeling Languages (DSML). Profiles have been a key enabler for the success of UML by providing a lightweight language-inherent extension mechanism which is expressive enough to cover an important subset of adaptation scenarios. Thus, we believe a similar concept for DSMLs provides an easier extension mechanism that has been so far neglected by current metamodeling tools. The Profile mechanism is based on a profile definition comprised of stereotype definitions. Stereotypes are used to annotate model elements in order to refine their meta-classes by defining supplemental information in form of additional meta attributes, also known as tag definitions. Instances of tag definitions are known as tagged values and they are used for the provision of new informations to existing models. With EMF Profiles, users can apply profiles within graphical modeling editors that are created using the Graphical Modeling Framework (GMF). Applied stereotypes are visualized using icons that are attached to shapes that represent the model elements to which stereotypes are applied. However, in many scenarios, visualization methods going beyond simple icons are helpful for locating and grasping the applied stereotypes and to allow for more domain-specific decorations according to the domain of the applied profile. For instance, highlighting a shape by a specific background color or enriching the shape with adornments and informations from a stereotype application reflects the meaning of the stereotype application more adequately than a simple icon. This thesis aims at providing decoration methods for applied stereotypes in EMF Profiles going beyond simple icons.
Optimistic and pessimistic shortest paths on uncertain terrains
Creators: name: Kholondyrev, Yury
Publisher: name: University of British Columbia
Year: 2011

description: In the Uncertain Terrain Shortest Path problem we consider a triangulated terrain with vertices having uncertain Z-coordinates: each vertex is denned as a (x,y,z―,z+) tuple, where the z coordinate of a vertex is uncertain and can be anywhere in the range from z― to z+. We are looking for a path (defined by its projection to the XY- plane) such that, over all possible terrains, the path is as short as possible. We look at both pessimistic (terrain arranges itself to maximize the length of the path that we choose) and optimistic (terrain takes the state that minimizes the length of our path) scenarios. We restrict ourselves to walk only along the edges of the terrain. The unrestricted problem (when we are allowed to walk on the faces of the terrain) has been proven to be NP-hard in both pessimistic and optimistic scenarios. We prove that the edge-restricted pessimistic problem is NP-hard by providing a reduction from the SUBSET-SUM problem and give a polynomial time algorithm for the edge-restricted optimistic problem.
Ortus: an Emotion-Driven Approach to (artificial) Biological Intelligence
Creators: name: McDonald, Andrew W. E.
name: Grimes, Sean
name: Breen, David E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Ortus is a simple virtual organism that also serves as an initial framework for investigating and developing biologically-based artificial intelligence. Born from a goal to create complex virtual intelligence and an initial attempt to model C. elegans, Ortus implements a number of mechanisms observed in organic nervous systems, and attempts to fill in unknowns based upon plausible biological implementations and psychological observations. Implemented mechanisms include excitatory and inhibitory chemical synapses, bidirectional gap junctions, and Hebbian learning with its Stentian extension. We present an initial experiment that showcases Ortus' fundamental principles; specifically, a cyclic respiratory circuit, and emotionally-driven associative learning with respect to an input stimulus. Finally, we discuss the implications and future directions for Ortus and similar systems.
description: \c{opyright} 2017 Massachusetts Institute of Technology Published under a Creative Commons Attribution 4.0 International
I meccanismi di intervento e finanziamento dello SME e il ruolo dell'ECU. (The intervention and financing mechanisms of the EMS and the role of the ECU)
Creators: name: MICOSSI, S.
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: EMS, intervention, foreign exchange markets
subject: E42, F31, F36

description: Il sistema monetario europeo ( SME) incarna un accordoin cui le valute nazionali dei paesi partecipanti saranno gestite in modo da mantenere una parità concordata con le altre valute. Anche se una certa flessibilità è consentito, in sostanza, i governi devono garantire che le parità siano mantenute. Il problema con l'accordo è che non vi è alcuna dichiarazione esplicita di come debba essere mantenuta la poarità sul mercato dei cambi. L'autore considera la base per lo sviluppo dello SME e esamina come l'accordo consentirà l'unità monetaria europea per sviluppare ad una vera valuta internazionale. The European Monetary System (EMS) embodies an agreement that national currencies in participating countries will be managed so as to maintain an agreed parity with other currencies. Although some flexibility is allowed, essentially governments must ensure that parities are maintained. The problem with the agreement is that there is no explicit statement as to how intervention on foreign exchange markets to maintain parity should be carried out. The author considers the background to the development of the EMS and examines how the parity agreement will allow the European Currency Unit to develop to a true international currency. JEL: E42, F31, F36
description: Moneta e Credito, V. 38, N. 152 (1985)
Multistability and memory effect in a highly turbulent flow: experimental evidence for a global bifurcation
Creators: name: Ravelet, Florent
name: Marie, Louis
name: Chiffaudel, Arnaud
name: Daviaud, Francois
Publisher: name: arXiv
Year: 2004
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We report an experimental evidence of a global bifurcation on a highly turbulent von Karman flow. The mean flow presents multiple solutions: the canonical symmetric solution becomes marginally unstable towards a flow which breaks the basic symmetry of the driving apparatus even at very large Reynolds number. The global bifurcation between these states is highly subcritical and the system thus keeps a memory of its history. The transition recalls low-dimension dynamical systems transitions and exhibits a very peculiar statistics. We discuss the role of turbulence in two ways: the multiplicity of hydrodynamical solutions and the effect of fluctuations on the nature of transitions.
description: submitted to Physical Review Letters 19 May 2004, accepted 10 September 2004
Additional file 1 of Psychosocial stress factors in families with preterm infants during the Covid-19 pandemic: a cross-sectional study
Creators: name: Fendel, Alina
name: Fuschlberger, Tamara
name: Friedmann, Anna
name: Nehring, Ina
name: Krüger, Marcus
name: Mall, Volker
name: Kraus, Verena
Publisher: name: figshare
Year: 2025
Subjects: subject: Medicine
subject: Cell Biology
subject: Environmental Sciences not elsewhere classified
subject: Sociology
subject: FOS: Sociology
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: Mental Health

description: Supplementary Material 1
innovazione finanziaria e politica monetaria: Italia e stati uniti a confronto. (Financial innovation and monetary policy: Italy versus the United States)
Creators: name: VACIAGO, G.
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: Financial innovation, monetary control, Italy, U.S., financial system
subject: E52, E44

description: L'innovazione finanziaria è stata collegata al problema del controllo monetario in molti paesi. Negli Stati Uniti è stato suggerito che i tassi di interesse elevati e volatili hanno creato innovazioni che ha ridotto l'efficacia della politica monetaria . C'è una visione alternativa che ritiene il controllo monetario inefficace ed ha creato volatilità dei mercati finanziari . Questo articolo considera i recenti sviluppi del sistema finanziario italiano e negli Stati Uniti , al fine di confrontare l'evoluzione di innovazione e il suo impatto sul controllo monetario . Financial innovation has been linked to the problem of monetary control in many countries. In the United States it has been suggested that high and volatile interest rates have created innovations that have reduced the effectiveness of monetary policy. There is an alternative view which believes that ineffective monetary control has created volatility in financial markets. This article considers recent developments in the Italian and United States financial system, in order to compare the evolution of innovation and its impact on monetary control. JEL: E52, E44
description: Moneta e Credito, V. 38, N. 152 (1985)
title: Entwurf von Hochwassserentlastungsanlagen großer Leistungsfähigkeit (Schussrinnen)
Creators: name: Furnadzhiev, Martin
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Hochwasserentlatungsalagen Schussrinne
subject: Spillway

description: Kurzfassung Im Rahmen dieser Arbeit wird ein Überblick über den Entwurf von Hochwasserentlastungs- anlagen (Schussrinnen) großer Leistungsfähigkeit und die Probleme, die im Betrieb auftreten können, gegeben. Bei diesen Poblemen handelt es sich im Wesentlichen um die Stoßwellenproblematik, Kavitationserosion, Energieumwandlung und Kolkbildung. Es werden die entsprechenden Prozesse, die für das Auftreten dieser Phänomene verantwortlich sind, analysiert. In Bezug auf die beschriebenen hydraulischen Probleme werden neben dem Entwurf der wichtigsten Bauwerkselemente der Schussrinne, auch ihre konstruktive Ausbildungen, die für den Betrieb wichtig sind, dargestellt. Insbesondere werden konstruktive Maßnahmen, die der Vermeidung von Stoßwellen und Kavitationsschäden dienen, dargestellt. Bezüglich der Kavitationsproblematik werden die Belüftungseinbauten und auch deren Arbeitsprinzip beschrieben. Neben den Maßnahmen zur Vermeidung der oben angeführten Probleme werden die hydraulischen Grundlagen zur Berechnung der Gerinneströmung, der natürlichen Oberflächenbelüftung sowie Berechnungsansätze zur Sohlbelüftung und der Energieumwandlung behandelt. Desweiteren werden für die Energieumwandlung verschiedene Möglichkeiten deren Umsetzung und auch die Größe der Kolkentwicklung aufgezeigt. Am Ende der Arbeit werden verschiedene Ausführungsbeispiele von Schussrinnen gezeigt.
description: The scope of this work presents an overview of the design of spillways with large capacity and their problems which occur during operating. Essentially, it involves the cross wave problems, cavitation erosion, energy dissipation and scour development. The corresponding processes, which are responsible for the appearance of these phenomena were analysed. In relation to the hydraulic problems, also constructive measures of the spillway were described to avoid shock waves and cavitation damage in addition to the design of the main structure elements of the spillway chute. Furthermore the components and flow processes which are important for the design were presented. The aeration devices in the chutes were treated in terms of the cavitation erosion suppression. It was also reportet the working principle of the aerator and the air entrainment process. Additionally the hydraulic basics for calculating the channel flow, the natural aeration and calculation approaches for the bottom aeration and energy dissipation were given. Moreover, different types of energy dissipators and the development of the scour were described. At the end some practice examples of spillways were shown.
Twisted mass Lattice QCD
Creators: name: Frezzotti, Roberto
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: I review the main theoretical properties and some recent analytical and numerical investigations of the formulations of lattice QCD with chirally twisted Wilson quarks (also known as twisted mass lattice QCD).
description: Lattice 04 (plenary), 7 pages. Corrected two typos (one immediately before eq. 18); improved wording of a sentence in last paragraph of sect. 1.3
Prestiti bancari o obbligazioni? Insegnamenti dell'esperienza storica. (Bank loans or bonds: some lessons of historical experience)
Creators: name: ARNDT, H.W.
name: DRAKE, P.J.
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: International debt crisis, bond markets, banks, Third World, development
subject: F34, G12, N24

description: Il perdurare della crisi del debito internazionale ha portato alcuni commentatori a suggerire che i mercati obbligazionari , piuttosto che le banche sarebbero un metodo più adeguato per il finanziamento dello sviluppo del Terzo Mondo . È stato suggerito che il mercato obbligazionario è un meccanismo più appropriato per la valutazione del rischio e per canalizzare fondi per lo sviluppo a lungo termine. Infatti, fino al 1930 , il più del finanziamento dello sviluppo è stato fornito dal mercato obbligazionario , e fu solo il crollo dei mercati dei capitali nel 1930 che imperdì a questa funzione di continuare . Esaminando l'esperienza storica , gli autori considerano il potenziale di finanziamento obbligazionario e le condizioni che sarebbero necessarie per la sua rinascita . The continuing international debt crisis has led some commentators to suggest that bond markets rather than banks would be a more appropriate method of financing development in the Third World. It has been suggested that the bond market is a more appropriate mechanism for assessing risk and channelling long-term development funds. In fact, until the 1930s, most development finance was provided by the bond market, and it was only the collapse of capital markets in the 1930s that stopped this function from continuing. By examining the historical experience, the authors consider the potential for bond financing and the conditions which would be necessary for its revival. JEL: F34, G12, N24
description: Moneta e Credito, V. 38, N. 152 (1985)
Anticoagulant treatment for COVID-19-associated coagulopathy (CIC): a review protocol of systematic review and meta-analysis
Creators: name: Azmi, Yusuf
name: Niwanda Yogiswara
name: Nugraha, Ricardo Adrian
Publisher: name: figshare
Year: 2020
Subjects: Medicine
Hematology

description: Anticoagulant treatment for COVID-19-associated coagulopathy (CIC): a review protocol of systematic review and meta-analysis
A comparative study of relative entropy of entanglement, concurrence and negativity
Creators: name: Miranowicz, Adam
name: Grudka, Andrzej
Publisher: name: arXiv
Year: 2004
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The problem of ordering of two-qubit states imposed by relative entropy of entanglement (E) in comparison to concurrence (C) and negativity (N) is studied. Analytical examples of states consistently and inconsistently ordered by the entanglement measures are given. In particular, the states for which any of the three measures imposes order opposite to that given by the other two measures are described. Moreover, examples are given of pairs of the states, for which (i) N'=N'' and C'=C'' but E' is different from E'', (ii) N'=N'' and E'=E'' but C' differs from C'', (iii) E'=E'', N'C'', or (iv) states having the same E, C, and N but still violating the Bell-Clauser-Horne-Shimony-Holt inequality to different degrees.
description: 8 pages, 7 figures, final version
EFFECTS OF A SEWAGE SLUDGE COMPOST ON THE CHEMICAL AND PHYSICAL PROPERTIES OF TWO SOILS OF THE TROPICS
Creators: name: Martinez, G. A.
name: Snyder, V. A.
name: Guzman, J. L.
name: Vazquez, M. A.
name: Martinez, G. A.
name: Snyder, V. A.
name: Guzman, J. L.
name: Vazquez, M. A.
Publisher: name: Unknown
Year: 1997
Subjects: Community/Rural/Urban Development
Crop Production/Industries

description: The influence of a sewage sludge compost on the chemical and physical properties of an Ultisol and a Mollisol of Puerto Rico were evaluated. Treatments evaluated were: Control (0 compost), 15, 30, 45 and 180 tons/acre of compost. Cassava plants (Manihot esculenta - PI 12902) were planted to ascertain the effects of the compost on crop performance and trace element uptake. The compost behaved as an acid neutralizing agent, raising the pH of the Ultisol from 4.2 in the control to 7.5 in the uppermost treatments (> 30 tons/acre). Such a significant influence on pH was attributed to the high calcium content of this compost, a reflection of the coagulating agent (Ca(OH)2) employed in the treatment plant. Significant increases were also observed for soil electrical conductivity, phosphorus (Olsen), and levels of EDTA- and DTPA-extractable Fe, Zn, Cu, and Cd. Trace element content remained well below EPA standards (EPA 503 rule). Cassava yield estimates based on 4 month old plants suggest that although beneficial effects may be expected in both soils at moderate rates, excessive loading may be deleterious to crop growth presumably due to overliming or salinity problems.
Hofstadter spectrum in electric and magnetic fields
Creators: name: Kunold, Alejandro
name: Torres, Manuel
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The problem of Bloch electrons in two dimensions subject to magnetic and intense electric fields is investigated. Magnetic translations, electric evolution and energy translation operators are used to specify the solutions of the Schrödinger equation. For rational values of the magnetic flux quanta per unit cell and commensurate orientations of the electric field relative to the original lattice, an extended superlattice can be defined and a complete set of mutually commuting space-time symmetry operators is obtained. Dynamics of the system is governed by a finite difference equation that exactly includes the effects of: an arbitrary periodic potential, an electric field orientated in a commensurable direction of the lattice, and coupling between Landau levels. A weak periodic potential broadens each Landau level in a series of minibands, separated by the corresponding minigaps. The addition of the electric field induces a series of avoided and exact crossing of the quasienergies, for sufficiently strong electric field the spectrum evolves into equally spaced discreet levels, in this "magnetic Stark ladder" the energy separation is an integer multiple of $ h E / a B $, with $a$ the lattice parameter.
description: 30 pages, 5 figures, Accepted in Annals of Physics
Agricultural science research impact in the Eastern European Union Member States
Creators: name: Midmore, Peter
name: Midmore, Peter
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agricultural and Food Policy
subject: Agricultural Finance
subject: Environmental Economics and Policy
subject: Financial Economics
subject: Political Economy
subject: Research and Development/Tech Change/Emerging Technologies
subject: research and innovation policy
subject: Central and Eastern Europe
subject: impact evaluation

description: Improving agricultural research impact is an important goal for the European Union (EU). The EU Framework 7 project Impresa studied the process of research impact across Europe, and this article selects and discusses results drawn from the 11 Eastern EU Member States. The major methods used were a survey of the levels and trends of research expenditures by the public and private sectors, case studies identifying impact pathways of individual science-based innovations, and quantitative analyses of the relationship between research investments and their final impacts. The conclusions drawn are that, despite the potentially high payback from public investments in agricultural science, insufficient resources are being invested by the post-2004 EU accession countries, and improvements in innovation capacity and networking should enhance the efficiency of research impact.
description: http://dx.doi.org/10.7896/j.1064
The impact of investment support from the Rural Development Programme of the Czech Republic for 2007-2013 on the economic efficiency of farms
Creators: name: Hlavsa, Tomáš
name: Hruška, Martin
name: Turková, Edita
name: Hlavsa, Tomáš
name: Hruška, Martin
name: Turková, Edita
Publisher: name: Unknown
Year: 2017
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Community/Rural/Urban Development
subject: Crop Production/Industries
subject: Environmental Economics and Policy
subject: Farm Management
subject: Food Security and Poverty
subject: Land Economics/Use
subject: Livestock Production/Industries
subject: Political Economy
subject: Production Economics
subject: Productivity Analysis
subject: investment activity
subject: subsidy
subject: farm economy
subject: less favoured areas

description: European agriculture is highly mechanised and its development is to a large extent shaped by the constant need for investment. By combining private capital with public funds, the risk burden associated with investment can be shared. The general economic objective of investment support is to improve the efficiency of production factors, such as labour, land and capital. The Rural Development Programme of the Czech Republic for 2007-2013 included a preferential criterion, the objective of which was to give an advantage to farms in Less Favoured Areas (LFA) by facilitating their access to funding for investments. This paper evaluates the investment activities of agricultural holdings located in Czech LFAs in the period 2011-2015, compared to those that are not located in LFAs. Binary logistic regression was employed to identify factors, such as LFA type, farm size, share of other revenues, indebtedness of a farm and stocking density of cattle, that influenced whether a farm was or was not supported with an investment subsidy. We conclude that supported farms in LFAs have higher levels of economic performance and higher labour productivity than unsubsidised farms. It is evident that many farms, especially in mountain areas, are interested in investment activities and are trying to develop their businesses. They have a lower likelihood of business failure than those farms that do not invest.
description: https://dx.doi.org/10.7896/j.1014
Anni di formazione nella Chicago d'un tempo. (Beginnings)
Creators: name: MINSKY, H.P.
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: Hyman Minsky, biography, retrospective
subject: B31

description: Il documento è un contributo ad una serie di ricordi e riflessioni sulle esperienze professionali di illustri economisti con Banca Nazionale del Lavoro Quarterly Review iniziati nel 1979. In esso Hyman Minsky offre una retrospettiva sulla sua carriera accademica e lo sviluppo intellettuale . The paper is a contribution to a series of recollections and reflections on the professional experiences of distinguished economists which the Banca Nazionale del Lavoro Quarterly Review started in 1979. In it Hyman Minsky offers a retrospective on his academic career and intellectual development. JEL: B31
description: Moneta e Credito, V. 39, N. 153 (1986)
title: Erosionsprozesse in Flüssen
Creators: name: Stoev, Marin
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Erosion
subject: Flussbau
subject: Erosion
subject: Flussbau

description: Die flussmorphologischen Prozesse sind eine sehr komplizierte und in vielen Büchern breit erklärte Problematik. Das Ziel dieser Arbeit ist es nicht neue Theorien zu entwickeln, sondern die vorhandenen Denkansätze auf Basis von Literaturstudien und Fallbeispielen übersichtlich darzustellen. Die vorliegende Arbeit bietet kurze, aber klare Formulierungen der wesentlichen Ursachen von Sohlerosionsprozessen natürlicher Flussläufe und stellt Methoden vor, mit deren Hilfe es gelingen kann, die Erosion zu verringern oder zu vermeiden. Ergänzend werden die Vor- und Nachteile der einzelne Methoden dargestellt. Die Maßnahmen sind in zwei Hauptgruppen unterteilt und zwar in bautechnische und flussbauliche. Alle betroffenen Punkte werden ausführlich erläutert und durch Bilder, Skizzen und Fotos ergänzt, sodass eine bessere Vorstellung von der Problematik erhalten werden kann. Zum Schluss sind drei Beispiele zur Sohlstabilisierung gezeigt. Sie entsprechen verschiedenen vorher erklärten Methoden, die in Österreich schon ausgeführt wurden. Das Ergebnis dieser Arbeit ist eine kurze Zusammenfassung, die die wichtigsten Aspekte der Sohlerosion bzw. Sohlstabilisierung umfasst und Information darüber gibt.
description: The river morphological processes are very complicated and in many books widely stated problems. The aim of this study is not to develop new theories, but to represent the existing approaches based on literature studies and case studies clearly. This paper provides concise and clear formulations of the main causes of bederosion in the natural rivers and introduces methods that help to reduce erosion or to avoid it. The advantages and disadvantages are shown for the individual methods. The measures are divided into two main sections namely to building and to river engineering. All points are explained and complemented by pictures, sketches and photos, so that a better idea of the problem can be obtained. Finally, three examples for river bed stabilization are shown. They meet several previously stated methods, which have already been carried out in Austria. The result of this work is a brief summary, which includes the most important aspects of bed erosion and river bed stabilization and gives information about it.
Galaxy Formation and the Cosmological Angular Momentum Problem
Creators: name: Burkert, Andreas
name: D'Onghia, Elena
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The importance of angular momentum in regulating the sizes of galactic disks and by this their star formation history is highlighted. Tidal torques and accretion of satellites in principle provide enough angular momentum to form disks with sizes that are in agreement with observations. However three major problems have been identified that challenge cold dark matter theory and affect models of galaxy evolution: (1) too much angular momentum is transferred from the gas to the dark halos during infall, leading to disks with scale lengths that are too small, (2) bulgeless disks require more specific angular momentum than is generated cosmologically even if gas would not lose angular momentum during infall, (3) gravitational torques and hierarchical merging produce a specific angular momentum distribution that does not match the distribution required to form exponential disks naturally; some gas has exceptionally high angular momentum, leading to extended outer disks while another large gas fraction will contain very little specific angular momentum and is expected to fall into the galactic center, forming a massive and dominant bulge component. Any self-consistent theory of galaxy formation will require to provide solutions to these questions. Selective mass loss of low-angular-momentum gas in an early phase of galaxy evolution currently seems to be the most promising scenario. Such a process would have a strong affect on the early protogalactic evolution phase, the origin and evolution of galactic morphologies and link central properties of galaxies like the origin of central massive black holes with their global structure.
description: 16 pages, 7 postscript files, requires kapproc.cls and procps.sty; to appear in "Penetrating Bars Through Masks of Cosmic Dust: The Hubble Tuning Fork Strikes a New Note", ed. Block, Freeman, Puerari and Groess, Dordrecht: Kluwer
Il contributo dei "nuovi classici" alla macroeconomia.(The new-classical contribution to macroeconomics)
Creators: name: LAIDLER, D.
Publisher: name: Moneta e Credito
Year: 2013
Subjects: subject: New-classical economics, monetarism, macroeconomics, behaviour
subject: E13

description: L'autore sostiene che , anche se i modi particolari in cui New- classica Macroeconomia ha applicato le sue idee di base sono inutilmente restrittive , la sua enfasi sul comportamento di equilibrio condizionata dallo stato delle aspettative individuali degli agenti come base per la modellazione macro è comunque prezioso This work is devoted to assessing New-Classical ideas, and to asking what of lasting importance this school of macroeconomics has contributed since the early 1970s. It deals in turn with the relationship between New-Classical Economics and Monetarism, the relative explanatory power of these two bodies of doctrine over empirical evidence, and the claims of New-Classical Economics to embody a superior analytic method. The author argues that, although the particular ways in which New-Classical Macroeconomics has applied its basic ideas are unnecessarily restrictive, its stress on equilibrium behaviour conditioned by the state of individual agents’ expectations as a basis for macro modelling is nevertheless valuable. JEL: E13
description: Moneta e Credito, V. 39, N. 153 (1986)
Changes in commuting patterns in the territories covered by LEADER Local Action Groups: Slovakia, 2001 and 2011
Creators: name: Székely, Vladimir
name: Székely, Vladimir
Publisher: name: Unknown
Year: 2017
Subjects: subject: Community/Rural/Urban Development
subject: Institutional and Behavioral Economics
subject: Labor and Human Capital
subject: commuting to work
subject: territories of Local Action Groups

description: In the European Union’s (EU) 2007–2013 programming period, 29 Local Action Groups (LAG) were registered in Slovakia. The rural regions covered by these LAGs have been selected for detailed time-space analysis of two specific aspects of commuting to work: (a) the share of intra-LAG, predominantly rural-to-rural commuting, from the total numbers of out- and in-commuters (indicator of intra-LAG entrepreneurial activity, economic networking, social capital and diffusion of codified and/or tacit knowledge); and (b) the share of individual LAG out-commuters abroad from the total number of out-commuters from territories of individual LAGs (indicator of ‘openness’ of rural communities towards new challenges which is aimed at improving their living standards). Two years have been selected for the comparison: 2001 (prior to the establishment of LAGs and the accession of Slovakia to the EU, its entry into the Schengen Area, and the opening of labour markets of the EU Member States to the citizens of the Slovak Republic) and 2011 (after the establishment of LAGs and the ‘Europeanisation’ of Slovakia). Statistical analysis showed the position and attractiveness of most LAGs as local labour markets has weakened during the period 2001-2011.
description: https://dx.doi.org/10.7896/j.1072
The N-vortex Problem on a Riemann Sphere
Creators: name: Wang, Qun
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 76B47, 30F45, 37J45, 58E05

description: This article investigates the dynamical behaviours of the $n$-vortex problem with vorticity $\mathbfΓ$ on a Riemann sphere $\mathbb{S}^2$ equipped with an arbitrary metric $g$. From perspectives of Riemannian geometry and symplectic geometry, we study the invariant orbits and prove that with some constraints on vorticity $\mathbfΓ$, the $n$-vortex problem possesses finitely many fixed points and infinitely many periodic orbits for generic $g$. Moreover, we verify the contact structure on hyper-surfaces of the vortex dipole, and exclude the existence of perverse symmetric orbits.
description: 32 pages, 3 figures
title: Solving data quality problems in data warehousing by means of data exchange techniques
Creators: name: Jozaf, Jan
Publisher: name: TU Wien
Year: 2015
Subjects: subject: Datenqualität
subject: Schemaabbildungen
subject: data quality
subject: schema mappings

description: Since the concept of data warehousing started to play an important role for bigger companies in the past few years, consequently data quality has became an essential part in the process of collecting, integrating and delivering trust-worthy data to business people. During the time, the subject of data quality has been examined in many theoretical research papers and many of these findings have been successfully applied in practice. However, new challenges have recently appeared, causing bigger demands for more detailed data quality checks including the processing of constantly increasing amount of data. Taking into account this new demands in the overall data quality process, the data validation has became considerably slower than before. The individual data validation checks have to be optimized, so they can achieve better performance. This problem area is the main focus of this thesis and could be described more profoundly with the following question: -How can we validate the correctness of data in a high-performance way, to guarantee the on-time processing of daily operations within data warehouses- Although the currently used techniques and tools for data validation deliver significantly better performance in comparison to previous years, they are still not sufficient to validate the continuously increasing data volume in acceptable time. In our effort to find possible improvements in the currently used data validation algorithms we looked at the recent research results in the field of the data exchange. The algorithmic similarity between data validation and data exchange could serve as an inspiration for examination of research results in the data exchange area, under the consideration that they are put into the role of data validation. In this thesis, we present and examine possibilities of such an implementation of the data exchange solution with the focus on processing of large amount of data quality checks. The aim is to find an algorithm which can minimize the amount of data checks to be executed but preserves its original declarative definition. The approach that was chosen for this thesis, takes a detailed look at the research that has been done in data exchange and tries to find for them the best possible applicability, which should bring added value in the data quality field. This added value is measured on the performance level with respect to data quality standard implementation. As a result of this work, we present the findings and recommendations, but also the possible restriction by the use of data exchange in the data quality area. The presented results are based on a concrete implementation of the proposed algorithm in several data validation scenarios.