cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Steklov eigenvalues for the Lamé operator in linear elasticity
Creators: name: Domínguez, Sebastián
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: Numerical Analysis (math.NA)
subject: FOS: Mathematics

description: In this paper we study Steklov eigenvalues for the Lamé operator which arise in the theory of linear elasticity. In this eigenproblem the spectral parameter appears in a Robin boundary condition, linking the traction and the displacement. To establish the existence of a countable spectrum for this problem, we present an extension of Korn's inequality. We also show that a proposed conforming Galerkin scheme provides convergent approximations to the true eigenvalues. A standard finite element method is used to conduct numerical experiments on 2D and 3D domains to support our theoretical findings.
description: Submitted to JCAM
The isotropic interplanetary dust cloud and near-infrared extragalactic background light observed with COBE/DIRBE
Creators: name: Sano, Kei
name: Matsuura, Shuji
name: Yomo, Kazuma
name: Takahashi, Aoi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report observation of isotropic interplanetary dust (IPD) by analyzing the infrared (IR) maps of Diffuse Infrared Background Experiment (DIRBE) onboard the Cosmic Background Explorer (COBE) spacecraft. To search for the isotropic IPD, we perform new analysis in terms of solar elongation angle ($ε$), because we expect zodiacal light (ZL) intensity from the isotropic IPD to decrease as a function of $ε$. We use the DIRBE weekly-averaged maps covering $64^\circ \lesssim ε\lesssim 124^\circ$ and inspect the $ε$-dependence of residual intensity after subtracting conventional ZL components. We find the $ε$-dependence of the residuals, indicating the presence of the isotropic IPD. However, the mid-IR $ε$-dependence is different from that of the isotropic IPD model at $ε\gtrsim 90^\circ$, where the residual intensity increases as a function of $ε$. To explain the observed $ε$-dependence, we assume a spheroidal IPD cloud showing higher density further away from the sun. We estimate intensity of the near-IR extragalactic background light (EBL) by subtracting the spheroidal component, assuming the spectral energy distribution from the residual brightness at $12\,{\rm μm}$. The EBL intensity is derived as $45_{-8}^{+11}$, $21_{-4}^{+3}$, and $15\pm3\,{\rm nWm^{-2}sr^{-1}}$ at $1.25$, $2.2$, and $3.5\,{\rm μm}$, respectively. The EBL is still a few times larger than integrated light of normal galaxies, suggesting existence of unaccounted extragalactic sources.
description: Accepted for publication in The Astrophysical Journal
Fock Space Representations for Non-Hermitian Hamiltonians
Creators: name: Fairlie, David B.
name: Nuyts, Jean
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The requirement of Hermiticity of a Quantum Mechanical Hamiltonian, for the description of physical processes with real eigenvalues which has been challenged notably by Carl Bender, is examined for the case of a Fock space Hamilitonian which is bilinear in two creation and destruction operators. An interpretation of this model as a Schrödinger operator leads to an identification of the Hermitian form of the Hamiltonian as the Landau model of a charged particle in a plane, interacting with a constant magnetic field at right angles to the plane. When the parameters of the Hamiltonian are suitably adjusted to make it non-Hermitian, the model represents two harmonic oscillators at right angles interacting with a constant magnetic field in the third direction, but with a pure imaginary coupling, and real energy eigenvalues. It is now ${\cal PT}$ symmetric. Multiparticle states are investigated.
description: LaTeX2e, 18 pages
La competitività del comparto florovivaistico delle regioni del mezzogiorno sul mercato internazionale
Creators: name: Schimmenti, Emanuele
name: Asciuto, Antonio
name: Galati, Antonino
name: Carapezza, Rosario
name: Schimmenti, Emanuele
name: Asciuto, Antonio
name: Galati, Antonino
name: Carapezza, Rosario
Publisher: name: Unknown
Year: 2008
Subjects: subject: Competitiveness
subject: Flowers and Ornamental Plants Sector
subject: International Trade
subject: Mezzogiorno

description: In the last few years the Italian flower and ornamental plant sector has been characterized by a significant dynamicity, becoming one of the most important sectors of the Italian agricultural system. In terms of competitiveness, however, the above sector has faced several market crises due to the globalization process which has produced has brought about an increasing supply of flower and ornamentals in the world market. In a national context, Mezzogiorno is an important area in terms of production source for flowers and ornamental plants, in relation to both extremely favorable climatic conditions and specific economic situations which positively affect profitability of firms operating in some productive sub-sectors (e.g., the ornamental plant sector). The paper points out the apparent growth signs of the Mezzogiorno flower and ornamental plant sector, though its contribution to the specialization of agrofood products is still marginal. Within the single items belonging to chapter 6 “Living trees and flowers”, the analysis carried out shows a specialization in the category of live plants as a consequence of a growing demand of such products from foreign markets. The competitiveness analysis has pointed out that these Italian regions are characterized by a strong comparative advantage mainly with some countries of the Balkans area (Serbia and Montenegro, Bosnia and Erzegovina and Croatia), and with some EU countries (Romania, Greece, Malta and France). A heavy competitive disadvantage comes up with the Netherlands and, less important, with Thailand, Sri Lanka and Taiwan. Among the main factors which affect the competitive performance of Mezzogiorno regions, it is clear that a crucial role is played both by farm pulverisation, which limits the development and the implementation of new productive technologies, and by an inefficiency of the distributive system. A strategy which certainly needs to be carried out is the adoption of high qualitative standards in order to reach new and important markets, particularly those characterized by high presence of rich consumption segments.
Hadron Production at Intermediate $p_T$ at RHIC
Creators: name: Chujo, Tatsuya
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Large proton and antiproton enhancement with respect to pions has been observed at intermediate transverse momentum $p_T \approx$ 2-5 GeV/$c$ in Au+Au collisions at RHIC. To investigate the possible source of this anomaly, the production of $ϕ$ mesons and two particle angular correlations triggered by mid-$p_T$ baryons or mesons are studied. We also present the first measurement of proton and antiproton production at $\sqrt{s_{NN}} = 62.4$ GeV in Au+Au collisions, which aims to study the energy dependence of the observed baryon enhancement.
description: 7 pages, 5 figures, proceedings of Hot Quarks 2004 workshop, Taos Valley, New Mexico, 18-24 Jul 2004,, to be published in J. Phys. G
Additional file 3 of Epigenome-wide DNA methylation analysis of small cell lung cancer cell lines suggests potential chemotherapy targets
Creators: name: Krushkal, Julia
name: Silvers, Thomas
name: Reinhold, William C.
name: Sonkin, Dmitriy
name: Vural, Suleyman
name: Connelly, John
name: Varma, Sudhir
name: Meltzer, Paul S.
name: Kunkel, Mark
name: Rapisarda, Annamaria
name: Evans, David
name: Pommier, Yves
name: Teicher, Beverly A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 3: Supplementary Table 3. List of methylation probes with the strongest correlations with log(IC50) measure of drug response, which satisfied the Spearman correlation pO < 9.42 × 10-8 in the epigenome-wide analysis of all antitumor agents.
An introduction to small scale reflection in Coq
Creators: name: Gonthier, Georges; Microsoft Research Cambridge-INRIA Microsoft Research Joint Centre
name: Mahboubi, Assia; INRIA Microsoft Research Joint Centre
Publisher: name: Journal of Formalized ReasoningJournal of Formalized Reasoning
Year: 2010

description: This tutorial presents the SSReflect extension to the Coq system. This extension consists of an extension to the Coq language of script, and of a set of libraries, originating from the formal proof of the Four Color theorem. This tutorial proposes a guided tour in some of the basic libraries distributed in the SSReflect package. It focuses on the application of the small scale reflection methodology to the formalization of finite objects in intuitionistic type theory.
description: Journal of Formalized Reasoning; Vol 3, No 2 (2010): Special Issue: User Tutorials I; 95 - 152
Search for CP violation in K0 -> 3 pi0 decays
Creators: name: NA48 Collaboration
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Using data taken during the year 2000 with the NA48 detector at the CERN SPS, a search for the CP violating decay K_S -> 3 pi0 has been performed. From a fit to the lifetime distribution of about 4.9 million reconstructed K0/K0bar -> 3 pi0 decays, the CP violating amplitude eta_000 = A(K_S -> 3 pi0)/A(K_L -> 3 pi0) has been found to be Re(eta_000) = -0.002 +- 0.011 +- 0.015 and Im(eta_000) = -0.003 +- 0.013 +- 0.017. This corresponds to an upper limit on the branching fraction of Br(K_S -> 3 pi0) < 7.4 x 10^-7 at 90% confidence level. The result is used to improve knowledge of Re(epsilon) and the CPT violating quantity Im(delta) via the Bell-Steinberger relation.
description: 18 pages, 7 figures, submitted to Phys. Lett. B
Lineamenti del commercio equo e solidale dei prodotti agroalimentari
Creators: name: Bracco, Salvatore
name: Riccardi, Giancarlo
name: Bracco, Salvatore
name: Riccardi, Giancarlo
Publisher: name: Unknown
Year: 2008
Subjects: subject: FairTrade
subject: Commodities
subject: Agroindustrial Chain
subject: International Trade

description: International trade has increased, in the last few decades, however the economic divide between the advanced economies in the North of the world and the less developed of the South has increased. In the current state of affairs, characterised by the increasing integration between the commodities and service sector, capital and labour sector and the financial markets, diverse initiatives are arising in developed countries, aimed at supporting developing countries, under the impulse from a civic society increasingly concerned about the problems that trouble them. These initiatives, which most importantly include the Fairtrade and the Ethical Finance movements, excel the welfarism that has shaped the policies of the developed countries, and promote ways of aiding developing countries through consumption and savings made by the individual citizens. The Fairtrade represents one of the most interesting examples of initiatives from the bottom up, in which civic society tries to integrate (and sometimes correct) the actions of governments and international institutions, through direct trade between the producers in developing countries and consumers in industrialised countries. This article aims at, first of all, highlighting the anomalies that characterise the international trade of the agroindustrial goods that are at the centre of distortions of the agricultural commodities sector. For this aim, the alternative approach to the international trade of food commodities is analysed, and, therefore, the purpose of the Fairtrade in respect to the principals, criteria and objectives that characterise it. All the components of the agroindustrial chain of the Fairtrade are examined: the organisations of the producers, importers, retailers and the international coordination. Object of this analysis are also the provisions at European, National and Regional level. Finally, some relevant aspects of the conventional coffee and cacao trade are highlighted, making a comparison with the correspondent quantity and products in the Fairtrade market. The methodology will take into account relevant literature and will be based on the analysis of statistical data on the economic performance of the Fairtrade model, in terms of sales volumes and turnover. The analysis of the mechanisms and activities allows to delineate the current state of the fairtrade and highlights limits and prospects of this type of market.
Additional file 1 of Epigenome-wide DNA methylation analysis of small cell lung cancer cell lines suggests potential chemotherapy targets
Creators: name: Krushkal, Julia
name: Silvers, Thomas
name: Reinhold, William C.
name: Sonkin, Dmitriy
name: Vural, Suleyman
name: Connelly, John
name: Varma, Sudhir
name: Meltzer, Paul S.
name: Kunkel, Mark
name: Rapisarda, Annamaria
name: Evans, David
name: Pommier, Yves
name: Teicher, Beverly A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: Supplementary Table 1. SCLC cell lines used in correlation analysis of methylation, transcript and miRNA expression, and drug response data.
Crop Yield and Revenue Insurance: Choosing Between Policies That Trigger On Farm vs. County Indexes
Creators: name: Chaffin, Ben
name: Chaffin, Ben
Publisher: name: Unknown
Year: 2009
Subjects: Farm Management
Risk and Uncertainty

description: Insurance policies that trigger on county yield and revenue indexes are expected to be more actuarially fair than policies that trigger on individual farm yield and revenue since individual farm hidden actions and hidden information impacting purchase decisions will be built into insurance premium rates. Findings are expected to help farmers, insurance agents, lenders, and those in academia better understand and evaluate insurance policies that trigger indemnity payments based on county indexes. Case studies are provided to facilitate understanding of tracking between farm and county yields and the importance of the farm-county yield correlation. A protocol is developed to standardize county and farm yields to better illustrate tracking and rules-of- thumb are developed to aid in crop insurance purchase decisions. Cumulative probability distributions of net yields with and without insurance are used to show the effects of county and farm trigger insurance policies on risk transfer. The farm location and spatial diversification in a county result in variations in the farm-county yield correlations and yield basis risk. These measures are directly related to the risk transfer performance of county trigger policies relative to no insurance and to farm trigger insurance policies.
An Elliptic Hypergeometric Function Approach to Branching Rules
Creators: name: Lee, Chul-hee
name: Rains, Eric M.
name: Warnaar, S. Ole
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics

description: We prove Macdonald-type deformations of a number of well-known classical branching rules by employing identities for elliptic hypergeometric integrals and series. We also propose some conjectural branching rules and allied conjectures exhibiting a novel type of vanishing behaviour involving partitions with empty 2-cores.
Additional file 2 of Epigenome-wide DNA methylation analysis of small cell lung cancer cell lines suggests potential chemotherapy targets
Creators: name: Krushkal, Julia
name: Silvers, Thomas
name: Reinhold, William C.
name: Sonkin, Dmitriy
name: Vural, Suleyman
name: Connelly, John
name: Varma, Sudhir
name: Meltzer, Paul S.
name: Kunkel, Mark
name: Rapisarda, Annamaria
name: Evans, David
name: Pommier, Yves
name: Teicher, Beverly A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplementary Table 2. List of selected single agents, their target genes and additional genes potentially involved in their response, which were examined in detailed DNA methylation analysis.
Compendium of Economic and Trade Indicators by Region, 1960 to 2004
Creators: name: Sandri, Damiano
name: Valenzuela, Ernesto
name: Anderson, Kym
name: Sandri, Damiano
name: Valenzuela, Ernesto
name: Anderson, Kym
Publisher: name: Unknown
Year: 2006
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: distorted incentives
subject: agricultural and trade policy reforms
subject: national agricultural development

description: -
Methodology for Measuring Distortions to Agricultural Incentives
Creators: name: Anderson, Kym
name: Kurzweil, Marianne
name: Martin, William J.
name: Sandri, Damiano
name: Valenzuela, Ernesto
name: Anderson, Kym
name: Kurzweil, Marianne
name: Martin, William J.
name: Sandri, Damiano
name: Valenzuela, Ernesto
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: distorted incentives
subject: agricultural and trade policy reforms
subject: national agricultural development

description: -
Enhancement of impact ionization in Hubbard clusters by disorder and next-nearest-neighbor hopping
Creators: name: Kauch, Anna
name: Worm, Paul
name: Prauhart, Paul
name: Innerberger, Michael
name: Watzenböck, Clemens
name: Held, Karsten
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We perform time-resolved exact diagonalization of the Hubbard model with time dependent hoppings on small clusters of up to $12$ sites. Here, the time dependence originates from a classic electromagnetic pulse, which mimics the impact of a photon. We investigate the behavior of the double occupation and spectral function after the pulse for different cluster geometries and on-site potentials. We find impact ionization in all studied geometries except for one-dimensional chains. Adding next-nearest neighbor hopping to the model leads to a significant enhancement of impact ionization, as does disorder and geometric frustration of a triangular lattice.
description: 16 pages, 25 figures
Zeeman effect of the hyperfine structure levels in hydrogenlike ions
Creators: name: Moskovkin, D. L.
name: Shabaev, V. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Classical Physics (physics.class-ph)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The fully relativistic theory of the Zeeman splitting of the $1s$ hyperfine structure levels in hydrogenlike ions is considered for the magnetic field magnitude in the range from 1 to 10 T. The second-order corrections to the Breit -- Rabi formula are calculated and discussed. The results can be used for a precise determination of nuclear magnetic moments from $g$ factor experiments.
description: 13 pages
Towards innovative environmental management in the Agro-food Industry
Creators: name: Bremmers, Harry J.
name: Haverkamp, Derk-Jan
name: Sabidussi, Anna
name: Omta, S.W.F. (Onno)
name: Bremmers, Harry J.
name: Haverkamp, Derk-Jan
name: Sabidussi, Anna
name: Omta, S.W.F. (Onno)
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: environmental management
subject: innovation
subject: governmental policy
subject: stakeholder influences

description: This article focuses on the problem: what external (stakeholder) and internal (structural/organizational) factors drive companies in the food- and agribusiness towards innovative environmental management? Innovative companies are those considered to have adopted a supply-chain perspective, instead of a focus on the single business unit. We propose that innovativeness is associated with stakeholder wishes (the government, the public environmental policy being a major influential factor), in combination with structural characteristics of the firm (like R&D-efforts, culture and managerial competences). We surveyed 492 companies in 2002, to get insight into the causes of innovativeness in the Dutch agri-food sector, and supplemented this data by means of a similar questionnaire in 2005. Structural equation modeling and correlation analysis were applied. The research provided evidence that companies are restricted by, and therefore not comfortable with, public environmental policies, which seem to obstruct innovativeness rather than stimulate it. Firms that (1) have enough internal (physical, financial, social) resources to innovate, and (2) are more embedded in a web of (commercial) stakeholder wishes, prove to be more innovative. Suggestions are made to shift the corporate and public policies towards a supply chain-oriented approach by granting benefits for vertical cooperation in supply-chains.
Neutrinos as a diagnostic of cosmic ray Galactic/extra-galactic transition
Creators: name: Ahlers, Markus
name: Anchordoqui, Luis A.
name: Goldberg, Haim
name: Halzen, Francis
name: Ringwald, Andreas
name: Weiler, Thomas J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by a recent change in viewing the onset of the extra-galactic component in the cosmic ray spectrum, we have fitted the observed data down to $10^{8.6}$ GeV and have obtained the corresponding power emissivity. This transition energy is well below the threshold for resonant $pγ$ absorption on the cosmic microwave background, and thus source evolution is an essential ingredient in the fitting procedure. Two-parameter fits in the spectral and redshift evolution indices show that a standard Fermi $E_i^{-2}$ source spectrum is excluded at larger than 95% confidence level (CL). Armed with the primordial emissivity, we follow Waxman and Bahcall to derive the associated neutrino flux on the basis of optically thin sources. For $pp$ interactions as the generating mechanism, the neutrino flux exceeds the AMANDA-B10 90%CL upper limits. In the case of $pγ$ dominance, the flux is marginally consistent with AMANDA-B10 data. In the new scenario the source neutrino flux dominates over the cosmogenic flux at all energies. Thus, should data from AMANDA-II prove consistent with the model, we show that IceCube can measure the characteristic power law of the neutrino spectrum, and thus provide a window on the source dynamics.
description: To be published in Phys. Rev. D
Social networks in the rise of episcopal power in late antiquity : the case of Martin of Tours
Creators: name: Fernandez, Damian Martin
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this thesis is to analyze the case of Martin of Tours to understand the process of the rise of episcopal power during the fourth century in Gaul. A traditional understanding of this process considers that episcopal power had a significant change in nature when aristocrats took over the office of bishop in the beginning of the fifth century. Nevertheless, recent studies have pointed out that during the fourth century some bishops were able to develop and consolidate a large amount of power within the city by means of traditional Roman social relationships.. These were alliances with local notables and the development of networks of patronage. Sulpicius Severus, the biographer of Martin of Tours, constructed a figure of Martin shaped by particular religious, political and social motives. As a result, it becomes difficult to establish the actual nature and form of Martin's social relationships. Yet he also offered some hints that allow the reader to grasp them. Specially, the mention of gifts and favours are the clues that point towards the existence of a vast network of social rapports. This network reached all sectors of lateantique Gallic society, from emperors to minor officers or from aristocratic landowners to poorest sectors. Consequently, a close examination of Martin's vertical and horizontal social relationships allows the modern reader to reconsider traditional models of the rise of episcopal power in Gaul.
Riemannian Geometry of a Discretized Circle and Torus
Creators: name: Bochniak, Arkadiusz
name: Sitarz, Andrzej
name: Zalecki, Paweł
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: 46L87, 83C65

description: We extend the results of Riemannian geometry over finite groups and provide a full classification of all linear connections for the minimal noncommutative differential calculus over a finite cyclic group. We solve the torsion-free and metric compatibility condition in general and show that there are several classes of solutions, out of which only special ones are compatible with a metric that gives a Hilbert $C^\ast$-module structure on the space of the one-forms. We compute curvature and scalar curvature for these metrics and find their continuous limits.
A proof of Bertrand's postulate
Creators: name: Asperti, Andrea; University Of Bologna
name: Ricciotti, Wilmer; University Of Bologna
Publisher: name: Journal of Formalized ReasoningJournal of Formalized Reasoning
Year: 2013

description: We discuss the formalization, in the Matita Interactive Theorem Prover, of some results by Chebyshev concerning the distribution of prime numbers, subsuming, as a corollary, Bertrand's postulate.
Even if Chebyshev's result has been later superseded by the stronger prime number theorem, his machinery, and in particular the two functions psi and theta still play a central role in the modern development of number theory. The proof makes use of most part of the machinery of elementary arithmetics, and in particular of properties of prime numbers, gcd, products and summations, providing a natural benchmark for assessing the actual development of the arithmetical knowledge base.
description: Journal of Formalized Reasoning; Vol 5, No 1 (2012); 37-57
Knowledge transfer: a case study approach
Creators: name: Ticha, Ivana
name: Havlicek, Jaroslav
name: Ticha, Ivana
name: Havlicek, Jaroslav
Publisher: name: Unknown
Year: 2008
Subjects: subject: Community/Rural/Urban Development
subject: Institutional and Behavioral Economics
subject: International Relations/Trade
subject: Teaching/Communication/Extension/Profession
subject: knowledge transfer
subject: knowledge economy
subject: decision-making support
subject: agribusiness

description: The article builds on the growing importance of knowledge as a strategic resource for maintaining the competitive advantage of a business. We illustrate one of the initiatives contributing to effective knowledge transfer by describing a case study approach which suggests how universities might assist in disseminating knowledge and enhancing industry competitiveness. The case study approach is apparently an effective way to share best practices, and with the use of appropriate ICT tools, it provides for an enormous diffusion of codified (explicit) knowledge in the industry. The example in the focus of this article describes a Virtual Portal designed as a single-point access to information and tools (case studies, decision models and software), with the emphasis on case studies (their selection, coding and use).
Detection of two-mode spatial quantum states of light by electro-optic integrated directional couplers
Creators: name: Barral, David
name: Thompson, Mark G.
name: Liñares, Jesús
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study both manipulation and detection of two-mode spatial quantum states of light by means of a reconfigurable integrated device built in an electro-optical material in a Kolgelnik-Schmidt configuration, which provides higher error tolerance to fabrication defects and larger integration density than other current schemes. SU(2) transformations are implemented on guided spatial modes in such a way that reconstruction of both the optical field-strength quantum probability distribution, via spatial two-mode homodyne detection, and the full optical field-strength wavefunction, by means of weak values, are carried out. This approach can easily be extended to spatial N-mode input quantum states. Apart from its usefulness to characterize optical quantum states, it is also emphasized its application to the measurement of the so-called generalized quantum polarization.
description: 10 pages, 8 figures
The value of quality
Creators: name: Nabradi, Andras
name: Nabradi, Andras
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agricultural and Food Policy
subject: Community/Rural/Urban Development
subject: Environmental Economics and Policy
subject: Productivity Analysis
subject: Quality
subject: quality costs
subject: quality categories
subject: economically optimal quality
subject: value chain
subject: animal husbandry

description: The significance of quality production and quality improvement is widely acknowledged by many but few specify what should be improved and what quality should be produced. The reason may be that there are different quality categories in the process of the value chain. Moreover, the issue of quality costs, i.e. economically optimal quality has not yet been explored yet. The present study raises problems in the pigmeat verticum, but similar studies are needed in other animal husbandry sectors as well. It is reasonable to treat the quality categories of animal products in a complex way, as this allows the full satisfaction of consumer expectations at the certain stages of the value chain and solvent demand as well.
Image charge interaction correction in charged-defect calculation
Creators: name: Suo, Zhao-Jun
name: Luo, Jun-Wei
name: Li, Shu-Shen
name: Wang, Lin-Wang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Charged-defect calculation using a periodic supercell is a significant class of problems in solid state physics. However, the finite supercell size induces an undesirable long-range image charge Coulomb interaction. Although a variety of methods have been proposed to eliminate such image Coulomb interaction, most of the previous schemes are based on a rough approximation of the defect charge screening. In this work, we present a rigorous derivation of the image charge interaction with a new defect screening model where the use of bulk macroscopic dielectric constant can be avoided. We have verified this approach in comparison with a widely used approach for 12 different defects. Our correction scheme offers a much faster convergence concerning the supercell size for cases with considerable image charge interactions. In those cases, we also found that the nonlinear dielectric screening might play an important role. The proposed new defect screening model will also shed new light on understanding the defect screening properties and can be applied to other defect systems.
Sex differences in the relationship of sleep-disordered breathing and asthma control among children with severe asthma
Creators: name: Sigfus Gunnlaugsson
name: Greco, Kimberly F.
name: Petty, Carter R.
name: Sierra, Gabriella C.
name: Stamatiadis, Natalie P.
name: Thayer, Christine
name: Hammond, Adam G.
name: Giancola, Lauren M.
name: Umakanth Katwa
name: Tregony Simoneau
name: Baxi, Sachin N.
name: Gaffin, Jonathan M.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Neuroscience
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences
subject: 110309 Infectious Diseases

description: Children with severe asthma are underrepresented in studies of the relationship of sleep-disordered breathing (SDB) and asthma and little is known about sex differences of these relationships. We sought to determine the relationship of SDB with asthma control and lung function among boys and girls within a pediatric severe asthma cohort. Patients attending clinic visits at the Boston Children’s Hospital Pediatric Severe Asthma Program completed the Pediatric Sleep Questionnaire (PSQ), Asthma Control Test (ACT) and Spirometry. The prevalence of SDB was defined as a PSQ score >0.33. We analyzed the association between PSQ score and both ACT score and spirometry values in mixed effect models, testing interactions for age and sex. Among 37 subjects, mean age was 11.8 years (4.4) and 23 (62.2%) were male, the prevalence of SDB was 43.2% (16/37). Including all 80 observations, there was a moderate negative correlation between PSQ and ACT scores (r=-0.46, p p = 0.003), such that for each 0.10 point increase in PSQ there was a 1.88 point decrease in ACT score for females but only 0.21 point decrease in ACT score for males. A positive PSQ screen was associated with a 9.44 point (CI 5.54, 13.34, p p = 0.02) lower score for males. SDB is common among children with severe asthma. Among children with severe asthma, SDB in girls portends to significantly worse asthma control than boys. Supplemental data for this article is available online at https://doi.org/10.1080/02770903.2021.1897838.
Experimental Evidence for Giant Vortex States in a Mesoscopic Superconducting Disk
Creators: name: Kanda, A.
name: Baelus, B. J.
name: Peeters, F. M.
name: Kadowaki, K.
name: Ootuka, Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Response of a mesoscopic superconducting disk to perpendicular magnetic fields is studied by using the multiple-small-tunnel-junction method, in which transport properties of several small tunnel junctions attached to the disk are measured simultaneously. This allows us for the first experimental distinction between the giant vortex states and multivortex states. Moreover, we experimentally find magnetic field induced rearrangement and combination of vortices. The experimental results are well reproduced in numerical results based on the nonlinear Ginzburg-Landau theory.
description: 4 pages, 4 figures, accepted for publication in Phys. Rev. Lett
Contract Farming in China: Perspectives of Smallholders
Creators: name: Guo, Hongdong
name: Jolly, Robert W.
name: Guo, Hongdong
name: Jolly, Robert W.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Farm Management
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: Public Economics
subject: contract farming
subject: China
subject: smallholders

description: This paper explores the current status of contract farming in China by examining data from a survey of Chinese householders. The survey indicates that the actual proportion of householders engaged in contract farming is relatively low and significantly less than the proportion of householders willing to produce under contract. The primary reason for householders not participating in contract farming is the absence of opportunities, particularly for small size farms. Householders identify price stability and market access as the key motivations to participate in contract farming. Middleman and agribusiness firms were the most important organizations for householders to contract with.
Combinatorics of Multicompositions
Creators: name: Hopkins, Brian
name: Ouvry, Stéphane
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: Integer compositions with certain colored parts were introduced by Andrews in 2007 to address a number-theoretic problem. Integer compositions allowing zero as some parts were introduced by Ouvry and Polychronakos in 2019. We give a bijection between these two varieties of compositions and determine various combinatorial properties of these multicompositions. In particular, we determine the count of multicompositions by number of all parts, number of positive parts, and number of zeros. Then, working from three types of compositions with restricted parts that are counted by the Fibonacci sequence, we find the sequences counting multicompositions with analogous restrictions. With these tools, we give combinatorial proofs of summation formulas for generalizations of the Jacobsthal and Pell sequences.
description: 13 pages
Building trust in agri-food chains: the mediating role of effective communication
Creators: name: Fischer, Christian
name: Fischer, Christian
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Marketing
subject: FOS: Economics and business
subject: Trust
subject: Agri-food Chains
subject: Europe

description: Using recent survey data (n = 1,430) on trust levels in agri-food supplier-buyer relationships in six different European countries, two commodity chains (meat and cereals) and two chain stages (farmer-processor and processor-retailer), main determinants of trust are identified and discussed. The structural equation modelling estimation results indicate that trust can be significantly improved by effective communication and by a positive collaboration experience. The existence of personal bonds does not seem to play a direct role in the retailer-processor relationship but is important when dealing with farmers. In both chain stages a positive collaboration experience as well the existence of personal bonds also indirectly enhance trust by promoting effective communication which in turn positively impacts on trust levels, thus making it a powerful mediator.
Additional file 16 of Epigenome-wide DNA methylation analysis of small cell lung cancer cell lines suggests potential chemotherapy targets
Creators: name: Krushkal, Julia
name: Silvers, Thomas
name: Reinhold, William C.
name: Sonkin, Dmitriy
name: Vural, Suleyman
name: Connelly, John
name: Varma, Sudhir
name: Meltzer, Paul S.
name: Kunkel, Mark
name: Rapisarda, Annamaria
name: Evans, David
name: Pommier, Yves
name: Teicher, Beverly A.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 16: Supplementary Figure 4. A. Scatterplot of DNA methylation (horizontal scale) of the 5’UTR of EZH2 vs log(IC50) of ABT-348 (vertical scale). B. Scatterplot of DNA methylation of the 5’UTR of EZH2 (horizontal scale) vs log(IC50) of ABT-348 CT-32228 (vertical scale). C. Methylation of the 5’UTR of EZH2 (vertical sidebar) plotted against the heatmap of SCLC cell line classification based on lineage marker expression. D. EZH2 expression (vertical sidebar) plotted against the heatmap of SCLC cell line clustering based on expression of the SCLC lineage marker genes. In the heatmap, rows represent SCLC cell lines, whereas columns represent log2-transformed expression of NEUROD1, ASCL1, ASLC2, INSM1, YAP1, and POU2F3. For those cell lines that had previously reported SCLC lineage subtype classification [2], their lineage subtype assignments are listed with their cell line names in the vertical right column of row labels.
A formalized proof of Dirichlet's theorem on primes in arithmetic progression
Creators: name: Harrison, John; Intel Corporation
Publisher: name: Journal of Formalized ReasoningJournal of Formalized Reasoning
Year: 2009

description: We describe the formalization using the HOL Light theorem prover of Dirichlet's theorem on primes in arithmetic progression. The proof turned out to be more straightforward than expected, but this depended on a careful choice of an informal proof to use as a starting-point. The goal of this paper iis twofold. First we describe a simple and efficient proof of the theorem informally, which iis otherwise difficult to find in one self-contained place at an elementary level. We also describe its, largely routine, HOL Light formalization, a task that took only a few days.
description: Journal of Formalized Reasoning; Vol 2, No 1 (2009); 63-83
Bounded Submodules of Modules
Creators: name: Schmidmeier, Markus
Publisher: name: arXiv
Year: 2004
Subjects: subject: Representation Theory (math.RT)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16G70 (primary), 20K27, 16G60, 15A21 (secondary)

description: Let $m$, $n$ be positive integers such that $m\leq n$. We consider all pairs $(B,A)$ where $B$ is a finite dimensional $T^n$-bounded $k[T]$-module and $A$ is a submodule of $B$ which is $T^m$-bounded. They form the objects of the submodule category $S_m(k[T]/T^n)$ which is a Krull-Schmidt category with Auslander-Reiten sequences. The case $m=n$ deals with submodules of $k[T]/T^n$-modules and has been studied well. In this manuscript we determine the representation type of the categories $S_m(k[T]/T^n)$ also for the cases where $m
Factors Explaining the Consumers' Willingness-to-Pay for a "Typical" Food Product in Spain: Evidence from Experimental Auctions
Creators: name: Akaichi, Faiçal
name: Gil, Jose Maria
name: Akaichi, Faiçal
name: Gil, Jose Maria
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business
subject: Willingness to pay
subject: random nth price auction
subject: Mongeta Ganxet

description: A random nth price experimental auction is used to elicit the willingness to pay (WTP) a premium for the locally produced and high quality white bean "Mongeta Ganxet" (MG) (Catalonia - Spain). Moreover, we are interested in testing the effect on the WTP of providing different pieces of information to participants. Results indicate that the provision of information on organoleptic, nutritional and cooking characteristics of the MG as well as their tasting has increased participants' WTP. Also, providing reference prices of substitutive products (both conventional and alternative high quality white beans) positively stimulates the premium participants are willing to pay for the MG. Finally, the level of consumption, the degree of knowledge about the product and the participants' previous experience increase the purchasing intention of the MG.
Additional file 1 of Cinnarizine- and flunarizine-associated movement disorder: a literature review
Creators: name: Rissardo, Jamir Pitton
name: Caprara, Ana Letícia Fornari
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Pharmacology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: Other 1 – FreeText and MeSH search terms in the US National Library of Medicine
A Dissipative Photochemical Origin of Life: The UVC Abiogenisis of Adenine
Creators: name: Michaelian, Karo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences
subject: I.6.3; G.3
subject: 92-10, 92C05, 92C15, 92C40, 92C45, 80Axx, 82Cxx,

description: I describe the non-equilibrium thermodynamics and the photochemical mechanisms which may have been involved in the dissipative structuring, proliferation and evolution of the fundamental molecules at the origin of life from simpler and more common precursor molecules under the impressed UVC photon flux of the Archean. Dissipative structuring of the fundamental molecules is evidenced by their strong and broad wavelength absorption bands and rapid radiationless dexcitation in this wavelength region. Proliferation arises from the auto- and cross-catalytic nature of the intermediate products. Evolution towards states of concentration profiles of generally increasing photon disspative efficacy arises since the system has numerous stationary states, due to the non-linearity of the photochemical and chemical reactions with diffusion, which can be reached by amplification of a molecular concentration fluctuation near a bifurcation. An example is given of photochemical dissipative abiogenisis of adenine from the precursors HCN and H$_2$O within a fatty acid vesicle on a hot ocean surface, driven far from equilibrium by the impressed UVC light. The kinetic equations are resolved under different environmental conditions and the results analyzed within the framework of Classical Irreversible Thermodynamic theory.
description: 42 pages, 17 figures
Representations of U(2\infty) and the Value of the Fine Structure Constant
Creators: name: Klink, William H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: A relativistic quantum mechanics is formulated in which all of the interactions are in the four-momentum operator and Lorentz transformations are kinematic. Interactions are introduced through vertices, which are bilinear in fermion and antifermion creation and annihilation operators, and linear in boson creation and annihilation operators. The fermion-antifermion operators generate a unitary Lie algebra, whose representations are fixed by a first order Casimir operator (corresponding to baryon number or charge). Eigenvectors and eigenvalues of the four-momentum operator are analyzed and exact solutions in the strong coupling limit are sketched. A simple model shows how the fine structure constant might be determined for the QED vertex.
description: Published in SIGMA (Symmetry, Integrability and Geometry: Methods and Applications) at http://www.emis.de/journals/SIGMA/
Spatial decomposition of magnetic anisotropy in magnets: application for doped Fe16N2
Creators: name: Sun, Yang
name: Yao, Yong-Xin
name: Nguyen, Manh Cuong
name: Wang, Cai-Zhuang
name: Ho, Kai-Ming
name: Antropov, Vladimir
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We propose a scheme of decomposition of the total relativistic energy in solids to intra- and interatomic contributions. The method is based on a variation of the speed of light from its value in relativistic theory to infinity (a non-relativistic limit). As an illustration of the method, we tested such decomposition in the case of a spin-orbit interaction variation for decomposition of the magnetic anisotropy energy (MAE) in CoPt. We further studied the α''-Fe16N2 magnet doped by Bi, Sb, Co and Pt atoms. It has been found that the addition of Pt atoms can enhance the MAE by as large as five times while Bi and Sb substitutions double the total MAE. Using the proposed technique we demonstrate the spatial distribution of these enhancements. Our studies also suggest that Sb, Pt and Co substitutions could be synthesized by experiments.