cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Three-body continuum discretization in a basis of transformed harmonic oscillator states
Creators: name: Rodriguez-Gallardo, M.
name: Arias, J. M.
name: Gomez-Camacho, J.
name: Moro, A. M.
name: Thompson, I. J.
name: Tostevin, J. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The inclusion of the continuum in the study of weakly-bound three-body systems is discussed. A transformed harmonic oscillator basis is introduced to provide an appropriate discrete and finite basis for treating the continuum part of the spectrum. As examples of the application of the method the strength functions corresponding to several operators that couple the ground state to the continuum are investigated, for 6He, and compared with previous calculations. It is found that the energy moments of these distributions are accurately reproduced with a small basis set.
description: 12 figures, submitted to PRC
Boundary effect of deterministic dense coding
Creators: name: Ji, Zhengfeng
name: Feng, Yuan
name: Duan, Runyao
name: Ying, Mingsheng
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present a rigorous proof of an interesting boundary effect of deterministic dense coding first observed by Mozes et al. [Phys. Rev. A 71, 012311 (2005)]. Namely, it is shown that $d^2-1$ cannot be the maximal alphabet size of any isometric deterministic dense coding schemes utilizing $d$-level partial entanglement.
description: 3 pages, RevTeX, no figure. Comments, criticisms and suggestions are welcome
Escape and accretion by cratering impacts: Formulation of scaling relations for high-speed ejecta
Creators: name: Hyodo, Ryuki
name: Genda, Hidenori
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Numerous small bodies inevitably lead to cratering impacts on large planetary bodies during planet formation and evolution. As a consequence of these small impacts, a fraction of the target material escapes from the gravity of the large body, and a fraction of the impactor material accretes onto the target surface, depending on the impact velocities and angles. Here, we study the mass of the high-speed ejecta that escapes from the target gravity by cratering impacts when material strength is neglected. We perform a large number of cratering impact simulations onto a planar rocky target using the smoothed particle hydrodynamics method. We show that the escape mass of the target material obtained from our numerical simulations agrees with the prediction of a scaling law under a point-source assumption when $v_{\rm imp} \gtrsim 12 v_{\rm esc}$, where $v_{\rm imp}$ is the impact velocity and $v_{\rm esc}$ is the escape velocity of the target. However, we find that the point-source scaling law overestimates the escape mass up to a factor of $\sim 70$, depending on the impact angle, when $v_{\rm imp} \lesssim 12 v_{\rm esc}$. Using data obtained from numerical simulations, we derive a new scaling law for the escape mass of the target material for $v_{\rm imp} \lesssim 12 v_{\rm esc}$. We also derive a scaling law that predicts the accretion mass of the impactor material onto the target surface upon cratering impacts by numerically evaluating the escape mass of the impactor material. Our newly derived scaling laws are useful for predicting the escape mass of the target material and the accretion mass of the impactor material for a variety of cratering impacts that would occur on large planetary bodies during planet formation.
description: 13 pages, 8 figures. Accepted for publication in ApJ
The process of shaping self through regular physical exercise among women : a grounded theory
Creators: name: Flood, Karen R.
Publisher: name: University of British Columbia
Year: 2009

description: The purpose of this study was to investigate the psychological and social processes of regular physical exercise use by women who consider themselves "exercisers." In using grounded theory method, the primary objective of this study was to generate a substantive theory that described (a) the experiences of women who self-identified as exercisers and engaged in regular physical exercise, (b) the contextual factors that influenced their participation, and (c) explained the experience of participating in regular exercise, considering both the positive and negative effects of exercising, and the process of change through its use. Twenty-two women (age range, 21 to 60 years) were interviewed about their exercise experience. Twenty participants self-identified as exercisers. Two other participants, a former exerciser, and a nonexerciser, were interviewed in order to explore theory limits. A middle-range theory of "shaping self through exercise" was identified as the basic process of these women's experience of regular physical exercise. The process involved the reciprocal connection between two intrapersonal phases: "shaping up" and "experiencing self as shaped." Through interactions among the subprocesses of shaping up ("talking to self," "experiencing exercise," "diverting from self" and "feeling good about self") exercisers in this study experienced self as shaped through "growing into self," "grounding self in exercise," and "expressing self through exercise." Influenced by personal meaning and contextual conditions (one's personal exercise background, current life context, and socialcultural environment), exercisers frequently re-experienced both phases. Aspects of each conceptual element of the theoretical model are identified and illustrated by narrative data. This grounded theory provides insight into the complexity of women's physical exercise experience. To appreciate this experience it is necessary to view the social-psychological process from an interactionist perspective. Findings suggest that women's exercise may be more than physical movement in reaction to environmental and personal influences, but may also be an intrinsically motivated endeavour towards self-growth, self-care, and selfexpression. Awareness of the complexity of this process, including personal and contextual influences, may provide guidance towards more successful adoption and maintenance of exercise. Implications include future research directions to extend theoretical boundaries and specificity.
ASSESSING THE EFFECT OF ECR ON FINANCIAL AND OPERATING PERFORMANCE
Creators: name: Dooley, Frank J.
name: Mayberry, Matthew
name: Wilson, Christine A.
name: Boehlje, Michael
name: Dooley, Frank J.
name: Mayberry, Matthew
name: Wilson, Christine A.
name: Boehlje, Michael
Publisher: name: Unknown
Year: 2002
Subjects: Industrial Organization

description: A debate has emerged in the literature and trade press whether the adoption of Efficient Consumer Response (ECR), the supply chain management initiatives for the food industry, leads to improved inventory and financial performance. Using regression analysis, the financial performance for adopters of ECR is about 3 to 4% higher than for non-adopters. However, the growth in profit does not appear to come from improved performance for traditional inventory measures (such as inventory turnover, inventory-to-sales, or inventory-to-assets). The driving force behind these improved financial measures can be attributed to changes leading to a shorter cash conversion cycle. In addition, size matters; ECR is more effective due to economies of scale, information technology, and buying power.
The algebraic classification of nilpotent $\mathfrak{CD}$-algebras
Creators: name: Kaygorodov, Ivan
name: Khrypchenko, Mykola
Publisher: name: arXiv
Year: 2020
Subjects: subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics

description: We give an algebraic classification of complex $4$-dimensional nilpotent $\mathfrak{CD}$-algebras.
AN ECONOMETRIC ANALYSIS OF THE ECONOMIC CONTRIBUTION OF SUBTHERAPEUTIC ANTIBIOTIC USE IN PORK PRODUCTION
Creators: name: Algozin, Kenneth A.
name: Miller, Gay Y.
name: McNamara, Paul E.
name: Algozin, Kenneth A.
name: Miller, Gay Y.
name: McNamara, Paul E.
Publisher: name: Unknown
Year: 2001
Subjects: Livestock Production/Industries

description: There is growing concern among public health experts regarding the diminishing efficacy of antimicrobial therapy in human and veterinary medicine, and some have called for a ban on subtherapeutic antibiotic use in pork production. This paper develops an econometric analysis to identify the economic contributions of subtherapeutic antibiotic use in swine production.
PATENT PROTECTION AND PROJECT MANAGEMENT IN THE DEVELOPMENT OF NEW CROP VARIETIES: CASE STUDY OF THE HIGH PECTIN TOMATO
Creators: name: King, John L.
name: Klotz-Ingram, Cassandra
name: King, John L.
name: Klotz-Ingram, Cassandra
Publisher: name: Unknown
Year: 2001
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Intellectual property is only one element of successful R&D. Our case study tracks a GM crop variety from R&D to processing and retailing. One finding that emerged was the importance of factors besides patent protection for developing a new technology, such as effective partnering and supply chain management.
A DYNAMIC MODEL OF MICROLENDING IN THE DEVELOPING COUNTRIES
Creators: name: Katchova, Ani L.
name: Miranda, Mario J.
name: Gonzalez-Vega, Claudio
name: Katchova, Ani L.
name: Miranda, Mario J.
name: Gonzalez-Vega, Claudio
Publisher: name: Unknown
Year: 2001
Subjects: Financial Economics

description: In this paper, we examine the contract design problem of banks that extend loans to poor borrowers and seek to maximize outreach while remaining financially sustainable. A dynamic model is developed that shows how interest rates can be determined based on information about productivity and diligence characteristics of borrowers, investment opportunities, correlation of business activities, peer monitoring costs, and social sanctions. The results indicate that relative to the traditional static models, the dynamic model explains better the current experience in individual and group lending in developing countries.
Additional file 1 of Childhood maltreatment is associated with distrust and negatively biased emotion processing
Creators: name: Hepp, Johanna
name: Schmitz, Sara E.
name: Urbild, Jana
name: Zauner, Kathrin
name: Niedtfeld, Inga
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1.
Three Generations of SUSY Standard Model of Nambu-Goto String
Creators: name: Deo, B. B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: A four dimensional Superstring is constructed starting from a twenty six dimensional bosonic string. Fermions are introduced by noting the Manselstam's proof of equivalence of two fermions to one boson in 1+1 dimensions. The action of the superstring is invariant under SO(6)$\times$ SO(5). It has four bosonic coordinates and twenty four Majorana fermions of SO(3,1) representing two transverse modes of super fermions and conformal ghosts (b,c). The super conformal ghosts ($β, γ$) are the quanta of an extended Hilbert space of the remaining longitudinal modes of two superfermions. The massless spectrum obtained by quantising the action, contain vector mesons which are generators of the SO(6)$\times$SO(5). Using Wilson loops, this product group is proven to descend to $Z_3\times SU(3)\times SU(2)\times U(1)$ without breaking supersymmetry.Thus there are just three generations of quarks and leptons.
description: 11 pages
Quenched invariance principles for random walks on percolation clusters
Creators: name: Mathieu, P.
name: Piatnitski, A. L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Probability (math.PR)
subject: FOS: Mathematics

description: We prove the almost sure ('quenched') invariance principle for a random walker on an infinite Bernoulli percolation cluster in $\Z^d$ where $d$ is larger or equal than 2.
description: Different and more self-contained exposition of the main step of the proof. Paper can now be read without any previous knowledge on 2 scale convergence
HOW AGRICULTURAL RESEARCH AFFECTS URBAN POVERTY IN DEVELOPING COUNTRIES? THE CASE OF CHINA
Creators: name: Fan, Shenggen
name: Fang, Cheng
name: Zhang, Xiaobo
name: Fan, Shenggen
name: Fang, Cheng
name: Zhang, Xiaobo
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety
Research and Development/Tech Change/Emerging Technologies

description: The objective of this paper is to analyze how agricultural research and development have affected urban poverty using China as an example. Agricultural research lower food prices, and therefore help urban poor by lowing their food cost.
Frustrated Polyelectrolyte Bundles and T=0 Josephson-Junction Arrays
Creators: name: Grason, Gregory M.
name: Bruinsma, Robijn F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We establish a one-to-one mapping between a model for hexagonal polyelectrolyte bundles and a model for two-dimensional, frustrated Josephson-junction arrays. We find that the T=0 insulator-to-superconductor transition of the {\it quantum} system corresponds to a continuous liquid-to-solid transition of the condensed charge in the finite temperature {\it classical} system. We find that the role of the vector potential in the quantum system is played by elastic strain in the classical system. Exploiting this correspondence we show that the transition is accompanied by a spontaneous breaking of chiral symmetry and that at the transition the polyelectrolyte bundle adopts a universal response to shear.
description: 4 pages, 2 figures, 1 table minor changes to text, reference added
WHERE IS THE WALRASIAN AUCTIONEER FOR AGRICULTURAL MARKETS? AN EXAMINATION OF THE MARKETING INSTITUTION
Creators: name: Moss, Charles B.
name: Schmitz, Troy G.
name: Schmitz, Andrew
name: Moss, Charles B.
name: Schmitz, Troy G.
name: Schmitz, Andrew
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business

description: In the classical development of economic equilibrium and efficiency, transaction costs are seldom considered. This study develops a micro- market model of an agricultural market based on quality differences. The study then develops a model of market structure based on the New Theory of the Firm. Using the two models, we draw conclusions about economic potential for E-Commerce.
STRUCTURAL MODELS OF AREA YIELD CROP INSURANCE
Creators: name: Ramaswami, Bharat
name: Roe, Terry L.
name: Ramaswami, Bharat
name: Roe, Terry L.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Risk and Uncertainty
subject: Area Yield
subject: Beta
subject: Crop Insurance
subject: Systemic Risks

description: Earlier analyses of area yield crop insurance schemes used a reduced form linear relationship between individual and area yield. However, without knowledge of the structural framework, the analysis and design of alternative schemes is problematic. This paper resolves this problem. The paper characterizes the entire class of structural models equivalent to the reduced form. As a result, the beta, the slope coefficient of the reduced form is expressed as a function of structural parameters. Second, the structural model is used to analyze the relation between the aggregation (that determines area yields) and the risk reduction due to area yield insurance. Third, we consider optimal area yield insurance for an important class of structural models not consistent with the reduced form.
Additional file 1 of Does breaking up prolonged sitting improve cognitive functions in sedentary adults? A mapping review and hypothesis formulation on the potential physiological mechanisms
Creators: name: Chandrasekaran, Baskaran
name: Pesola, Arto J.
name: Rao, Chythra R.
name: Arumugam, Ashokan
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Evolutionary Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file.1: Sample search strategy used in Ovid Medline.
СОВРЕМЕННИЕ ДИАГНОСТИЧЕСКОЙ ТАКТИКИ ПРИ НЕПАЛЬПИРУЕМЫХ РАК МОЛОЧНЫХ ЖЕЛЕЗ
Creators: name: Ахмадова, Мафтуна
Publisher: name: Zenodo
Year: 2024

description: В настоящее время в странах, где налажен скрининг раннего РМЖ, около 20 % случаев РМЖ диагностируется на преинвазивнойстадии. На основании анализа проведенного экспериментального сравнения полноформатной цифровой маммографической системы и стереоскопической маммографии, используя детектор высокого разрешения, в ручном режиме  установили зависимость дозовой нагрузки и визуализации объектов. Определили оптимальные соотношения мишень/фильтр для 2D- и 3D-маммографии.Доказано, что метод трехмерной стереомаммографии при той же дозе, что и при полноформатной цифровой маммографии, существенно увеличивает распознавание детализации фантома.
Additional file 2 of Does breaking up prolonged sitting improve cognitive functions in sedentary adults? A mapping review and hypothesis formulation on the potential physiological mechanisms
Creators: name: Chandrasekaran, Baskaran
name: Pesola, Arto J.
name: Rao, Chythra R.
name: Arumugam, Ashokan
Publisher: name: figshare
Year: 2021
Subjects: subject: Biophysics
subject: Biochemistry
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Pharmacology
subject: Evolutionary Biology
subject: 69999 Biological Sciences not elsewhere classified
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file.2: Flowchart showing the iterative phases developed and screening process for the present mapping review.
THE IMPACT OF "BIG-BOX" BUILDING MATERIALS STORES ON HOST TOWNS AND SURROUNDING COUNTIES IN A MIDWESTERN STATE
Creators: name: Stone, Kenneth E.
name: Artz, Georgeanne M.
name: Stone, Kenneth E.
name: Artz, Georgeanne M.
Publisher: name: Unknown
Year: 2001
Subjects: Community/Rural/Urban Development

description: This paper analyzes 11 regions in a midwestern state where big-box building materials stores have opened. The zero-sum-game theory is verified; the sales gains in the host counties equaled the losses in the surrounding counties. The results are important to existing merchants and local officials in setting strategies and policies.
Cosmic ray threshold in an asymptotically dS spacetime
Creators: name: Chang, Zhe
name: Chen, Shao-Xia
name: Guan, Cheng-Bo
name: Huang, Chao-Guang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We discuss the threshold anomaly in ultra-high energy cosmic ray physics by assuming that the matter world just be perturbation of a de Sitter universe, which is consistent with the recent astronomical observations: about two thirds of the whole energy in the universe is contributed by a small positive cosmological constant. One-particle states are presented explicitly. It is noticed that the dispersion relation of free particles is dependent on the degrees of freedom of angular momentum. This fact can be regarded as the effects of the cosmological constant on kinematics of particles.
description: 15 pages, 4 figures
Spin-lattice relaxation phenomena in the magnetic state of a suggested Weyl semimetal CeAlGe
Creators: name: Singh, Karan
name: Mukherjee, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: In this work we report the results of DC susceptibility, AC susceptibility and related technique, resistivity, transverse and longitudinal magnetoresistance and heat capacity on polycrystalline magnetic semimetal CeAlGe. This compound undergoes antiferromagnetic type ordering around 5.2 K (T1). Under application of external magnetic fields, parallel alignment of magnetic moments is favored, above 0.5 Tesla. At low field and temperature, frequency and AC field amplitude response of AC susceptibility indicate to the presence of spin-lattice relaxation phenomena. The observation of spin-lattice interaction suggests to the presence of Rashba-Dresselhaus spin-orbit interaction which is associated with inversion and time reversal symmetry breaking. Additionally, presence of negative and asymmetric longitudinal magnetoresistance indicates anomalous velocity contribution to the magnetoresistance due to Rashba-Dresselhaus spin-orbit interaction which is further studied by heat capacity.
A DISAGGREGATED TIME-SERIES ANALYSIS OF EXPORT-BASE MODELS: A CASE STUDY ON ELKO COUNTY OF NEVADA
Creators: name: Banerjee, Swagata (Ban)
name: Harris, Thomas R.
name: Banerjee, Swagata (Ban)
name: Harris, Thomas R.
Publisher: name: Unknown
Year: 2001
Subjects: International Relations/Trade

description: An important issue of debate in economic base literature is whether the export-base theory applies best to the short run, the long run, or both. An attempt is being made here in answering this crucial question by applying a two-step test for cointegration on quarterly employment data, and in gaining insights as to whether or not any unequivocal judgment can be made regarding the validity of the economic base hypothesis.
Intermittency of velocity time increments in turbulence
Creators: name: Chevillard, L.
name: Roux, S. G.
name: Leveque, E.
name: Mordant, N.
name: Pinton, J. -F.
name: Arneodo, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We analyze the statistics of turbulent velocity fluctuations in the time domain. Three cases are computed numerically and compared: (i) the time traces of Lagrangian fluid particles in a (3D) turbulent flow (referred to as the "dynamic" case); (ii) the time evolution of tracers advected by a frozen turbulent field (the "static" case), and (iii) the evolution in time of the velocity recorded at a fixed location in an evolving Eulerian velocity field, as it would be measured by a local probe (referred to as the "virtual probe" case). We observe that the static case and the virtual probe cases share many properties with Eulerian velocity statistics. The dynamic (Lagrangian) case is clearly different; it bears the signature of the global dynamics of the flow.
description: 5 pages, 3 figures, to appear in PRL
THE EFFECT OF TECHNOLOGY TRANSFER PROGRAM PARTICIPATION ON SMALL FARMS IN CHILE
Creators: name: Edmonds, Christopher M.
name: Edmonds, Christopher M.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Research and Development/Tech Change/Emerging Technologies
subject: Teaching/Communication/Extension/Profession
subject: Agricultural Extension Services
subject: Program Evaluation
subject: Impact Assessment
subject: Technological Change
subject: Choices and Consequences
subject: Chile
subject: Farm Households
subject: Panel Data

description: This research examines the effect of a government sponsored technology transfer program for small holder farms in Chile. The effect of family participation in the technology transfer program is evaluated with respect to a number of 'outcomes' including its effect on farm revenues, total family income, and household poverty status. The empirical examination uses maximum likelihood selection and fixed- and random-effects estimation techniques. By estimating the effect of program participation on crop selection, crop yields, farm use of certified seeds, and the scale of farming activities, the research examines the mechanisms through which the program appears to raise farm revenues. Estimation results show program participation had a positive and significant effect on farm revenues and total family income. The program prompted farmers to adopt nitrogen fixing bean crops, but did not have significant effects on crop yields or the likelihood a farm planted certified seeds or applied fertilizer. The primary mechanism through which the program increased farm income was by increasing the intensive scale of farming pursued by participants.
Quantum Hamiltonian for gravitational collapse
Creators: name: Husain, Viqar
name: Winkler, Oliver
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using a Hamiltonian formulation of the spherically symmetric gravity-scalar field theory adapted to flat spatial slicing, we give a construction of the reduced Hamiltonian operator. This Hamiltonian, together with the null expansion operators presented in an earlier work, form a framework for studying gravitational collapse in quantum gravity. We describe a setting for its numerical implementation, and discuss some conceptual issues associated with quantum dynamics in a partial gauge fixing.
description: 17 pages, published version (minor changes)
Magnetocaloric effect and spin-phonon correlations in RFe0.5Cr0.5O3 (R = Er and Yb) compounds
Creators: name: Yadav, Kavita
name: Kaur, Gurpreet
name: Sharma, Mohit K.
name: Mukherjee, K.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We report the results of our investigation of the physical properties of mixed metal oxides RFe0.5Cr0.5O3 (R = Er and Yb). ErFe0.5Cr0.5O3 undergoes an antiferromagnetic ordering around 270 K followed by spin reorientation (SR) transitions around 150 and 8 K respectively. In contrast, in YbFe0.5Cr0.5O3 a single SR transition is noted at 36 K, below the AFM ordering temperature of 280 K. In ErFe0.5Cr0.5O3, a significant value of magnetic entropy change (ΔSM) ~ -12.4 J/kg-K is noted near the 2nd SR transition, however, this value is suppressed in YbFe0.5Cr0.5O3. Temperature dependent dielectric permittivity of ErFe0.5Cr0.5O3 and YbFe0.5Cr0.5O3 at different frequencies, reveal the presence of Debye-like relaxation behaviour in both compounds, which can be due to the effect of charge carrier hopping between localized states of Fe and Cr ions. Temperature dependent Raman scattering studies divulge that spin-phonon coupling plays a crucial role in defining the physical properties of these compounds.
Characterizations of model sets by dynamical systems
Creators: name: Baake, Michael
name: Lenz, Daniel
name: Moody, Robert V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Dynamical Systems (math.DS)
subject: Metric Geometry (math.MG)
subject: FOS: Mathematics
subject: 52C23, 37B50, 37A05, 43A25

description: It is shown how regular model sets can be characterized in terms of regularity properties of their associated dynamical systems. The proof proceeds in two steps. First, we characterize regular model sets in terms of a certain map $β$ and then relate the properties of $β$ to ones of the underlying dynamical system. As a by-product, we can show that regular model sets are, in a suitable sense, as close to periodic sets as possible among repetitive aperiodic sets.
description: 41 pages, revised version
A variational Monte Carlo approach for core excitations
Creators: name: Garner, Scott M.
name: Neuscamman, Eric
Publisher: name: arXiv
Year: 2020
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: We present a systematically-improvable approach to core excitations in variational Monte Carlo. Building on recent work in excited-state-specific Monte Carlo, we show how a straightforward protocol, starting from a quantum chemistry guess, is able to capture core state's strong orbital relaxations, maintain accuracy in the near-nuclear region during these relaxations, and explicitly balance accuracy between ground and core excited states. In water, ammonia, and methane, which serve as prototypical representatives for oxygen, nitrogen, and carbon core states, respectively, this approach delivers accuracies on par with the best available theoretical methods even when using relatively small wave function expansions.
description: 10 pages, 4 figures, 1 table
FARM HETEROGENEITY IN WILDLIFE PRODUCTION
Creators: name: Van Wenum, Jaap
name: Oude Lansink, Alfons G.J.M.
name: Wossink, Ada
name: Van Wenum, Jaap
name: Oude Lansink, Alfons G.J.M.
name: Wossink, Ada
Publisher: name: Unknown
Year: 1999
Subjects: Farm Management
Resource /Energy Economics and Policy

description: The paper discusses the appropriate functional form and estimation technique for a wildlife production function on the farm level. A random effect model was developed to capture the relationship between wildlife output, management practices, natural conditions and non-observed factors that cause a farm specific management bias. Two wildlife measures were compared: species richness and a wildlife yardstick that enables different species to be weighed on their ecological value. The results show that the farm specific factor has a significant impact on the production of wildlife both in terms of species numbers and in terms of ecological values. Parameter estimates that were similar for the species richness specification were found to vary with the yardstick specification, which indicates the added value of the wildlife yardstick. The results have implications for efficient payment schemes for wildlife production.
Differential rotation of the halo traced by the K-giant stars
Creators: name: Tian, Hao
name: Liu, Chao
name: Wang, Yougang
name: Xu, Yan
name: Yang, Chengqun
name: Zhang, Bo
name: Xue, Xiang-Xiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use K-giant stars selected from the LAMOST DR5 to study the variation of the rotational velocity of the galactic halo at different space positions. Modelling the rotational velocity distribution with both the halo and disk components, we find that the rotational velocity of the halo population decreases almost linearly with increasing vertical distance to the galactic disk plane, $Z$, at fixed galactocentric radius, $R$. The samples are separated into two parts with $6
description: Accepted for publication in ApJ, 18 pages, 12 figures, 1 table
A modified practical homodyne detector model for continuous-variable quantum key distribution: detailed security analysis and improvement by the phase-sensitive amplifier
Creators: name: Huang, Yundi
name: Zhang, Yi-Chen
name: Huang, Luyu
name: Yu, Song
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The practical homodyne detector model of continuous-variable quantum key distribution models the inherent imperfections of the practical homodyne detector, namely the limited detection efficiency and the electronic noise, into trusted loss. However, the conventional practical homodyne detector model is valid only when both the imperfections of the practical homodyne detector are calibrated. In this paper, we show a modified practical homodyne detector model that can model the imperfections separately. The phase-sensitive amplifier is further applied to compensate the imperfections of the practical homodyne detector. The feasibility of the modified practical homodyne detector model with the phase-sensitive amplifier is proved and the security analysis is provided in detail. Simulation results reveal that the phase-sensitive amplifier can be used to improve the performance of the modified practical homodyne detector model, and when the gain is infinitely high, the limited detection efficiency can be fully compensated.
description: 15 pages, 5 figures
WILLINGNESS TO PAY FOR AN INCREASE IN THE QUALITY OF DRINKING WATER: AN APPLICATION TO FRANCE
Creators: name: Carpentier, Alain
name: Vermersch, Dominique
name: Carpentier, Alain
name: Vermersch, Dominique
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: willingness to pay
subject: drinking water
subject: indirect observed method

description: In this paper a method to infer the value for consumers of the quality of supplied water is presented and applied. It uses concepts developed in the literature of environmental good valuation and the literature of equivalence scale measurement. It is applied to French data.
Faraday rotation in photoexcited semiconductors: an excitonic many-body effect
Creators: name: Combescot, M.
name: Betbeder-Matibet, O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: This letter assigns the Faraday rotation in photoexcited semiconductors to ``Pauli interactions'', \emph{i}. \emph{e}., carrier exchanges, between the real excitons present in the sample and the virtual excitons coupled to the $σ_{\pm}$ parts of a linearly polarized light. While \emph{direct Coulomb} interactions scatter bright excitons into bright excitons, whatever their spins are, \emph{Pauli} interactions do it for bright excitons \emph{with same spin only}. This makes these Pauli interactions entirely responsible for the refractive index difference, which comes from processes in which the virtual exciton which is created and the one which recombines are formed with different carriers. To write this difference in terms of photon detuning and exciton density, we use our new many-body theory for interacting excitons. Its multiarm ``Shiva'' diagrams for $N$-body exchanges make transparent the physics involved in the various terms. This work also shows the interesting link which exists between Faraday rotation and the exciton optical Stark effect.
Scalar meson mediated nuclear mu-e conversion
Creators: name: Faessler, Amand
name: Gutsche, Th.
name: Kovalenko, Sergey
name: Lyubovitskij, V. E.
name: Schmidt, Ivan
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the nuclear mu-e conversion in the general framework of the effective Lagrangian approach without referring to any specific realization of the physics beyond the standard model (SM) responsible for lepton flavor violation (LFV). We analyze the role of scalar meson exchange between the lepton and nucleon currents and show its relevance for the coherent channel of mu-e conversion. We show that this mechanism introduces modifications in the predicted mu-e conversion rates in comparison with the conventional direct nucleon mechanism, based on the contact type interactions of the nucleon currents with the LFV leptonic current. We derive from the experimental data lower limits on the mass scales of the generic LFV lepton-quark contact terms and demonstrate that they are more stringent than the similar limits existing in the literature.
description: 14 pages, 1 figure
Quantum Cosmology Aspects Of D3 Branes and Tachyon Dynamics
Creators: name: Psinas, Anastasios
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We investigate aspects of quantum cosmology in relation to string cosmology systems that are described in terms of the Dirac-Born-Infeld action. Using the Silverstein-Tong model, we analyze the Wheeler-DeWitt equation for the rolling scalar and gravity as well for $R\times{S^3}$ universe, by obtaining the wave functions for all dynamical degrees of freedom of the system. We show, that in some cases one can construct a time dependent version of the Wheeler-DeWitt (WDW) equation for the moduli field $ϕ$. We also explore in detail the minisuperspace description of the rolling tachyon when non-minimal gravity tachyon couplings are inserted into the tachyon action.
description: 29 pages, 3 figures, REVTeX 4; v2 clarifications, comments and references added; v3 more typos corrected, additional comments on the minisuperspace description of unstable universes, version published in JHEP
Additional file 2 of Association between physical restraint requirement and unfavorable neurologic outcomes in subarachnoid hemorrhage
Creators: name: Akiyama, Kyoko
name: Inoue, Akihiko
name: Hifumi, Toru
name: Nakamura, Kentaro
name: Taira, Takuya
name: Nakagawa, Shun
name: Jinno, Keisuke
name: Manabe, Arisa
name: Kinugasa, Sayaka
name: Matsumura, Hikaru
name: Shishido, Hajime
name: Yokoyama, Shota
name: Okazaki, Tomoya
name: Hamaya, Hideyuki
name: Koshiro Takano
name: Kiridume, Kazutaka
name: Natsuyo Shinohara
name: Kawakita, Kenya
name: Kuroda, Yasuhiro
Publisher: name: figshare
Year: 2021
Subjects: subject: Neuroscience
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: Supplemental Table 1. Comparison of baseline characteristics with favorable (mRS 0–3) and unfavorable (mRS 4–6) outcomes.
SOYBEANS QUALITY PRICE DIFFERENTIALS FROM AN ELEVATOR'S PERSPECTIVE
Creators: name: Murova, Olga I.
name: Mumma, Gerald A.
name: Hudson, Darren
name: Couvillion, Warren C.
name: Murova, Olga I.
name: Mumma, Gerald A.
name: Hudson, Darren
name: Couvillion, Warren C.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Crop Production/Industries
subject: Demand and Price Analysis
subject: hedonic
subject: quality
subject: discount

description: Soybean prices are determined by interaction between various factors. At an elevator, discount prices for unique characteristics can range from 0.02 cents per bushel to 7.71 cents per bushel of soybeans. This variation suggests that producers of soybeans need quality-characteristic specific information concerning soybeans pricing at the market. This study uses a hedonic model to evaluate price differentials associated with soybean quality based on grain elevator data during the 1998 production period. Foreign material, moisture, bean damage, and net weight were found to significantly influence the cash price of soybeans.
FACTORS AFFECTING WHEAT PROTEIN PREMIUMS
Creators: name: Parcell, Joseph L.
name: Stiegert, Kyle W.
name: Parcell, Joseph L.
name: Stiegert, Kyle W.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Crop Production/Industries
subject: Research Methods/ Statistical Methods
subject: Wheat
subject: Characteristic Demand Model
subject: Protein

description: This study used Rosen's methodology of deriving a marginal implicit price series from traditional hedonic modeling and then using this series to estimate a demand model. This procedure was applied to Kansas Hard Red Winter wheat protein. Results were mixed. Own-district protein level was not economically significant; however, an increase in other Kansas district's protein level and the North Dakota Hard Red Spring protein level may have a slight economic impact on own-district protein premium. The results of this study indicate that new varieties of wheat developed that increase protein content without loss of yield and that are regional specific can impact the price or wheat in other areas.
A market-based approach to resource allocation in manufacturing
Creators: name: Brydon, Michael
Publisher: name: University of British Columbia
Year: 2009

description: In this thesis, a framework for market-based resource allocation in manufacturing is developed and described. The most salient feature of the proposed framework is that it builds on a foundation of well-established economic theory and uses the theory to guide both the agent and market design. There are two motivations for introducing the added complexity of the market metaphor into a decision-making environment that is traditionally addressed using monolithic, centralized techniques. First, markets are composed of autonomous, self-interested agents with well defined boundaries, capabilities, and knowledge. By decomposing a large, complex decision problem along these lines, the task of formulating the problem and identifying its many conflicting objectives is simplified. Second, markets provide a means of encapsulating the many interdependencies between agents into a single mechanism—price. By ignoring the desires and objectives of all other agents and selfishly maximizing their own expected utility over a set of prices, the agents achieve a high degree of independence from one another. Thus, the market provides a means of achieving distributed computation. To test the basic feasibility of the market-based approach, a prototype, system is used to generate solutions to small instances of a very general class of manufacturing scheduling problems. The agents in the system bid in competition with other agents to secure contracts for scarce production resources. In order to accurately model the complexity and uncertainty of the manufacturing environment, agents are implemented as decision-theoretic planners. By using dynamic programming, the agents can determine their optimal course of action given their resource requirements. Although each agent-level planning problem (like the global level planning problem) induces an unsolvably large Markov Decision Problem, the structured dynamic programming algorithm exploits sources of independence within the problem and is shown to greatly increase the size of problems that can be solved in practice. In the final stage of the framework, an auction is used to determine the ultimate allocation of resource bundles to parts. Although the resulting combinational auctions are generally intractable, highly optimized algorithms do exist for finding efficient equilibria. In this thesis, a heuristic auction protocol is introduced and is shown to be capable of eliminating common modes of market failure in combinational auctions.
Efficient Hybrid Beamforming with Anti-Blockage Design for High-Speed Railway Communications
Creators: name: Gao, Meilin
name: Ai, Bo
name: Niu, Yong
name: Wu, Wen
name: Yang, Peng
name: Lyu, Feng
name: Xuemin
name: Shen
Publisher: name: arXiv
Year: 2020
Subjects: subject: Information Theory (cs.IT)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Future railway is expected to accommodate both train operation services and passenger broadband services. The millimeter wave (mmWave) communication is a promising technology in providing multi-gigabit data rates to onboard users. However, mmWave communications suffer from severe propagation attenuation and vulnerability to blockage, which can be very challenging in high-speed railway (HSR) scenarios. In this paper, we investigate efficient hybrid beamforming (HBF) design for train-to-ground communications. First, we develop a two-stage HBF algorithm in blockage-free scenarios. In the first stage, the minimum mean square error method is adopted for optimal hybrid beamformer design with low complexity and fast convergence; in the second stage, the orthogonal matching pursuit method is utilized to approximately recover the analog and digital beamformers. Second, in blocked scenarios, we design an anti-blockage scheme by adaptively invoking the proposed HBF algorithm, which can efficiently deal with random blockages. Extensive simulation results are presented to show the sum rate performance of the proposed algorithms under various configurations, including transmission power, velocity of the train, blockage probability, etc. It is demonstrated that the proposed anti-blockage algorithm can improve the effective rate by 20% in severely-blocked scenarios while maintaining low outage probability.
description: 11 Pages, 9 Figures
INTELLECTUAL PROPERTY RIGHTS AND TRADE: ANALYSIS OF BIOLOGICAL PRODUCTS, MEDICINALS AND BOTANICALS, AND PHARMACEUTICALS
Creators: name: Smith, Pamela J.
name: Smith, Pamela J.
Publisher: name: Unknown
Year: 1999
Subjects: subject: International Relations/Trade
subject: Research and Development/Tech Change/Emerging Technologies
subject: Intellectual property rights
subject: Exports
subject: Biotechnologies
subject: Medicinals
subject: Botanicals
subject: Pharmaceuticals

description: We examine the impact of intellectual property rights (IPRs) on US exports of biological, medicinal, botanical, and pharmaceutical products. We find that: (1) strong IPRs enhance monopoly power of US exports in countries with weak imitative abilities; and (2) strong IPRs expand markets for US exports in countries with strong imitative abilities.
Additional file 1 of Concerns, quality of life, access to care and productivity of the general population during the first 8 weeks of the coronavirus lockdown in Belgium and the Netherlands
Creators: name: Ballegooijen, Hanne Van
name: Goossens, Lucas
name: Bruin, Ralph H.
name: Michels, Renée
name: Krol, Marieke
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology

description: Additional file 1: Supplemental Table 1. Stress and concerns financials during the first 8 weeks of the national COVID-19 measures in Belgium. Supplemental Table 2. Stress and concerns about financials during the during the first 8 weeks of the national COVID-19 measures in the Netherlands. Supplemental Table 3. Concerns about care during first 8 weeks of the national COVID-19 measures in Belgium. Supplemental Table 4. Concerns about care during the first 8 weeks of the national COVID-19 national measures in the Netherlands. Supplemental Table 5. Self-perceived health and quality of life before and during the national COVID-19 measures stratified by age and COVID-19 in Belgium. Supplemental Table 6. Self-perceived health and quality of life before and during the national COVID-19 measures stratified by age and COVID-19 in the Netherlands. Supplemental Table 7. Cancelled or postponed healthcare appointments. Supplemental Table 8. Productivity losses in respondents in paid profession Belgium. Supplemental Table 9. Productivity losses among respondents in paid profession Netherlands.
Flavour Dynamics & CP Violation in the SM*: A Tale in Five Parts of Great Successes, Little Understanding -- and Promise for the Future!
Creators: name: Bigi, I. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Our knowledge of flavour dynamics has undergone a `quantum jump' since just before the turn of the millenium: direct \cp violation has been firmly {\em established} in $K_L \to ππ$ decays in 1999; the first \cp asymmetry outside $K_L$ decays has been discovered in 2001 in $B_d \to ψK_S$, followed by $B_d \to π^+π^-$ and $B \to K^{\pm}π^{\mp}$, the latter establishing direct \cp violation also in the beauty sector. Furthermore CKM dynamics allows a description of \cp insensitive and sensitive $B$, $K$ and $D$ transitions that is impressively consistent also on the quantitative level. Theories of flavour dynamics that could serve as {\em alternatives} to CKM have been ruled out. Yet these novel successes of the Standard Model (SM) do not invalidate any of the theoretical arguments for the incompleteness of the SM. In addition we have also more direct evidence for New Physics, namely neutrino oscillations, the observed baryon number of the Universe, dark matter and dark energy. While the New Physics anticipated at the TeV scale is not likely to shed any light on the SM's mysteries of flavour, detailed and comprehensive studies of heavy flavour transitions will be essential in diagnosing salient features of that New Physics. Strategic principles for such studies will be outlined.
description: 96 pages, 5 figures, LATEX, lectures given at the 2005 Varenna Summer School, the 2005 Beijing Summer School and at LAL, Orsay