cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
PLANT NUTRIENT DEMAND FUNCTIONS FOR TENNESSEE WITH PRICES OF JOINTLY APPLIED NUTRIENTS
Creators: name: Roberts, Roland K.
name: Roberts, Roland K.
Publisher: name: Unknown
Year: 1986
Subjects: Crop Production/Industries

description: Several studies have estimated plant nutrient demand functions for nitrogen, phosphate, and potash. All included own-price effects but excluded prices of jointly applied nutrients. In this study, nutrient demand functions, which include prices of all three nutrients, are estimated for Tennessee by seemingly unrelated regression. Results suggest that cross-price effects are important in determining plant nutrient demand, at least in the case of Tennessee, and that multicollinearity need not be a hindrance in all cases to including cross-price effects in plant nutrient demand models.
On reaction-subdiffusion equations
Creators: name: Sokolov, I. M.
name: Schmidt, M. G. W.
name: Sagues, F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: To analyze possible generalizations of reaction-diffusion schemes for the case of subdiffusion we discuss a simple monomolecular conversion A --> B. We derive the corresponding kinetic equations for local A and B concentrations. Their form is rather unusual: The parameters of reaction influence the diffusion term in the equation for a component A, a consequence of the nonmarkovian nature of subdiffusion. The equation for a product contains a term which depends on the concentration of A at all previous times. Our discussion shows that reaction-subdiffusion equations may not resemble the corresponding reaction-diffusion ones and are not obtained by a trivial change of the diffusion operator for a subdiffusion one.
Multilevel Typed Graph Transformations
Creators: name: Wolter, Uwe
name: Macías, Fernando
name: Rutle, Adrian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Software Engineering (cs.SE)
subject: FOS: Computer and information sciences

description: Multilevel modeling extends traditional modeling techniques with a potentially unlimited number of abstraction levels. Multilevel models can be formally represented by multilevel typed graphs whose manipulation and transformation are carried out by multilevel typed graph transformation rules. These rules are cospans of three graphs and two inclusion graph homomorphisms where the three graphs are multilevel typed over a common typing chain. In this paper, we show that typed graph transformations can be appropriately generalized to multilevel typed graph transformations improving preciseness, flexibility and reusability of transformation rules. We identify type compatibility conditions, for rules and their matches, formulated as equations and inequations, respectively, between composed partial typing morphisms. These conditions are crucial presuppositions for the application of a rule for a match---based on a pushout and a final pullback complement construction for the underlying graphs in the category Graph---to always provide a well-defined canonical result in the multilevel typed setting. Moreover, to formalize and analyze multilevel typing as well as to prove the necessary results, in a systematic way, we introduce the category Chain of typing chains and typing chain morphisms.
description: In the proceedings of the 13th International Conference on Graph Transformation (ICGT 2020)
A Non-equilibrium STM model for Kondo Resonance on surface
Creators: name: Fan, Wei
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Based on a no-equilibrium STM model, we study Kondo resonance on a surface by self-consistent calculations. The shapes of tunneling spectra are dependent on the energy range of tunneling electrons. Our results show that both energy-cutoff and energy-window of tunneling electrons have significant influence on the shapes of tunneling spectra. If no energy-cutoff is used, the Kondo resonances in tunneling spectrum are peaks with the same shapes in the density of state of absorbed magnetic atoms. This is just the prediction of Tersoff theory. If we use an energy cutoff to remove high-energy lectrons, a dip structure will modulate the Kondo resonance peak in the tunneling spectrum. The real shape of Kondo peak is the mixing of the peak and dip, the so-called Fano line shape. The method of self-consistent non-equilibrium matrix Green function is discussed in details.
description: 11 pages and 8 eps figure
Fully manipulate the power intensity pattern in a large space-time digital metasurface: from arbitrary multibeam generation to harmonic beam steering scheme
Creators: name: Shabanpour, Javad
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: Beyond the scope of space-coding metasurfaces, space-time digital metasurfaces can substantially expand the application scope of digital metamaterials in which simultaneous manipulation of electromagnetic waves in both space and frequency domains would be feasible. In this paper, by adopting a superposition operation of terms with unequal coefficient, Huygens principle, and a proper time-varying biasing mechanism, some useful closed-form formulas in the class of large digital metasurfaces were presented for predicting the absolute directivity of scatted beams. Moreover, in the harmonic beam steering scheme, by applying several suitable assumptions, we have derived two separate expressions for calculating the exact total radiated power at harmonic frequencies and total radiated power for scattered beams located at the end-fire direction. Despite the simplifying assumptions we have applied, we have proved that the provided formulas can still be a good and fast estimate for developing a large digital metasurface with a predetermined power intensity pattern. The effect of quantization level and metasurface dimensions on the performance of power manipulating as well as the limitation on the maximum scan angle in harmonic beam steering have been addressed. Several demonstrative examples numerically demonstrated through MATLAB software and the good agreement between simulations and theoretical predictions have been observed. By considering the introduced restrictions in the manuscript, this method can be implemented in any desired frequency just by employing phase-only meta-particles as physical coding elements. The author believes that the proposed straightforward approach discloses a new opportunity for various applications such as multiple-target radar systems and THz communication.
MONOPSONISTIC FOOD PROCESSING AND FARM PRICES: THE CASE OF THE WEST ALABAMA CATFISH INDUSTRY
Creators: name: Kinnucan, Henry W.
name: Sullivan, Gregory M.
name: Kinnucan, Henry W.
name: Sullivan, Gregory M.
Publisher: name: Unknown
Year: 1986
Subjects: Industrial Organization

description: Increasing concentration in food processing has important economic implications for agricultural producers and consumers. This paper addresses the issue by focusing on a case where pure monopsony conditions appear to hold-catfish processing in West Alabama. Farm-level impacts of the market power imbalance are described via a six equation theoretical model. Results show price elasticity of farm supply governing the economic incentive to the processor for exploiting its market power: less (more) elastic supply implies greater (lesser) divergence between competitive and monopsony price. The theoretical model is operationalized using an indirect procedure recently suggested by Houck for estimating farm level supply elasticities. Based on these supply elasticities and historical prices, the model predicts a 12-35 percent potential reduction in prices received by West Alabama producers as a result of market power imbalance.
B-Meson Wavefunction with Contributions from 3-particle Fock States
Creators: name: Huang, Tao
name: Qiao, Cong-Feng
name: Wu, Xing-Gang
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The B-meson light-cone wavefunctions, $Ψ_{\pm}(ω,z^2)$, are investigated up to the next-to-leading order in Fock state expansion in the heavy quark limit. In order to know the transverse momentum dependence of the B-meson wavefunctions with 3-particle Fock states' contributions, we make use of the relations between 2- and 3- particle wavefunctions derived from the QCD equations of motion and the heavy quark symmetry, especially two constraints derived from the gauge field equation of motion are employed. Our results show that the use of gluon equation of motion can give a constraint on the transverse momentum dependence $χ(ω,\mathbf{k}_\perp)$ of the B-meson wavefunctions, whose distribution tends to be a hyperbola-like curve under the condition $0
description: 24 pages, 4 figures, version to appear in PRD
SYNTHESIS, STRUCTURAL AND OPTICAL CHARACTERIZATION OF GeSxSe1-x SINGLE CRYSTALS GROWN BY DIRECT VAPOR TRANSPORT (DVT) TECHNIQUE.
Creators: name: Sandip Unadkat
Publisher: name: figshare
Year: 2020
Subjects: subject: Condensed Matter Physics
subject: FOS: Physical sciences

description: Single crystals of Germanium monosulphoselenide GeSxSe1-x (x =0.25, 0.5, 0.75) were grown by Direct Vapor Transport (DVT) technique, to avoid the incorporation of impurities, in a two zone furnace with the temperaturedifference of 50 K between growth and source zones. The material crystallizes in the form of shining gray and platelets like crystals at the end of growth cycles of more than 100 hours. The quantitative analysis of EDAX data shows that the grown crystals of GeSxSe1-x possess nearly stoichiometric proportion of the starting elements. Structural characterization of the grown crystals were done using the XRD technique which shows that all the crystals grow in orthorhombic structure with four atoms per unit cell and based on this data different lattice parameters have been calculated. The optical absorption study was made in thewavelength range 200-2500 nm. From the fundamental absorption edge of the spectra it is found that both direct and indirect transitions are involved in optical absorption process. Using this data the direct and indirect band gaphave been calculated and the results are discussed in light of the variation of the contents (x) of the grown crystals.
Armenische Osterfestberechnung in Äthiopien zur Zeit von Kaiser Lebna Dengel
Creators: name: Kropp, Manfred
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 72 (1988): Oriens christianus, Band 72
VALIDATION OF LINEAR PROGRAMMING MODELS
Creators: name: McCarl, Bruce A.
name: Apland, Jeffrey
name: McCarl, Bruce A.
name: Apland, Jeffrey
Publisher: name: Unknown
Year: 1986
Subjects: Research Methods/ Statistical Methods

description: Systematic approaches to validation of linear programming models are discussed for prescriptive and predictive applications to economic problems. Specific references are made to a general linear programming formulation, however, the approaches are applicable to mathematical programming applications in general. Detailed procedures are outlined for validating various aspects of model performance given complete or partial sets of observed, real world values of variables. Alternative evaluation criteria are presented along with procedures for correcting validation problems.
Synoptic solar observations of the Solar Flare Telescope focusing on space weather
Creators: name: Hanaoka, Yoichiro
name: Sakurai, Takashi
name: Otsuji, Ken'ichi
name: Suzuki, Isao
name: Morita, Satoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: The solar group at the National Astronomical Observatory of Japan is conducting synoptic solar observations with the Solar Flare Telescope. While it is a part of a long-term solar monitoring, contributing to the study of solar dynamo governing solar activity cycles, it is also an attempt at contributing to space weather research. The observations include imaging with filters for H$α$, Ca K, G-band, and continuum, and spectropolarimetry at the wavelength bands including the He I 1083.0 nm / Si I 1082.7 nm and the Fe I 1564.8 nm lines. Data for the brightness, Doppler signal, and magnetic field information of the photosphere and the chromosphere are obtained. In addition to monitoring dynamic phenomena like flares and filament eruptions, we can track the evolution of the magnetic fields that drive them on the basis of these data. Furthermore, the magnetic field in solar filaments, which develops into a part of the interplanetary magnetic cloud after their eruption and occasionally hits the Earth, can be inferred in its pre-eruption configuration. Such observations beyond mere classical monitoring of the Sun will hereafter become crucially important from the viewpoint of the prediction of space weather phenomena. The current synoptic observations with the Solar Flare Telescope is considered to be a pioneering one for future synoptic observations of the Sun with advanced instruments.
description: 18 pages, 6 figures
Insights on scalar mesons from their radiative decays
Creators: name: Kalashnikova, Yu.
name: Kudryavtsev, A.
name: Nefediev, A. V.
name: Haidenbauer, J.
name: Hanhart, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We estimate the rates for radiative transitions of the lightest scalar mesons f_0(980) and a_0(980) to the vector mesons rho and omega. We argue that measurements of the radiative decays of those scalar mesons can provide important new information on their structure.
description: 20 pages, 5 figures; appendix added, to be published in Phys. Rev. C
EFFECTS OF PORT USER FEES ON EXPORT GRAIN FLOW PATTERNS
Creators: name: Viscencio-Brambila, Hector
name: Fuller, Stephen W.
name: Viscencio-Brambila, Hector
name: Fuller, Stephen W.
Publisher: name: Unknown
Year: 1986
Subjects: International Relations/Trade

description: The purpose of this paper is to evaluate the effect of the proposed deep draft port user fee on export grain flow patterns and provide insight into potential marketing system adjustment costs which may result from diverted flows. A multiperiod, network flow model is used to conduct the analysis. Analyses show grain flow patterns to be affected most by a port specific fee which is based on weight. The annual variation in flows generated by imposition of port user charges in generally less than the historical year-to-year variation and, in most cases, the altered port area flows can be accommodated by existing infrastructure.
PERFORMANCE OF RISK-INCOME MODELS OUTSIDE THE ORIGINAL DATA SET
Creators: name: Atwood, Joseph A.
name: Held, Larry J.
name: Helmers, Glenn A.
name: Watts, Myles J.
name: Atwood, Joseph A.
name: Held, Larry J.
name: Helmers, Glenn A.
name: Watts, Myles J.
Publisher: name: Unknown
Year: 1986
Subjects: Risk and Uncertainty

description: Selected risk programming solutions (i.e., profit maximization, Target-MOTAD, and MOTAD) are tested in an economic environment outside the data set from which they were developed. Specifically, solutions are derived from either a longer 10-year (1965-74) or shorter 6-year estimation period (1969-74), and then, they are tested for consistent risk-income characteristics over a later 10-year period (1975-84). Risk solutions estimated from earlier periods perform well in the later test period in spite of different economic conditions between time periods. However, favorable performance may be related to the specific example used in this analysis. Further testing for other farm situations is needed before general conclusions can be reached.
Caino, Abele e il teatro
Creators: name: Chiafari, Rosanna
Publisher: name: Filosofia
Year: 2021

description: Through the biblical tale of the fratricide of Cain towards Abel, the essays focuses on – to the beat of Jacques Derrida’s deconstruction – some of the main passages of the theatre according to Antonin Artaud, trying to highlight as Derrida inevitably distances himself, between antipathy and forcing, although he moves in direction of Artaud. It is from such distances that the key-notions of the ‘theatre of cruelty’ is observed: from the strength of the voice to the weight of the representation, passing between bodies, cries, specters and spells of a theatre that increasingly resembles to a ritual ceremony, a sacrifice through which Artaud would like to heal the western classical theatre’s wounds, destroying it and giving a new life: destruction that remains inexorably within the boundaries that it intends to overcome.
description: Filosofia, N. 66 (2021): Filosofia e teatro
EFFECTS OF ALTERNATIVE FARM PROGRAMS AND LEVELS OF PRICE VARIABILITY ON TEXAS COTTON FARMS
Creators: name: Duffy, Patricia A.
name: Richardson, James W.
name: Smith, Edward G.
name: Duffy, Patricia A.
name: Richardson, James W.
name: Smith, Edward G.
Publisher: name: Unknown
Year: 1986
Subjects: Public Economics

description: This study examines the effects of alternative government farm programs and hypothetical price variability levels on two Texas cotton farms which were simulated stochastically over a 10-year period. Results indicate that a combination of high price variability and participation in government programs stimulates growth and wealth accumulation.
Sisterhood Library Project: the Collaboration among Rangsit University Library with School Libraries and Community in Pathumthani Province, Thailand
Creators: name: Malivan Praditteera
Publisher: name: สำนักหอสมุด มหาวิทยาลัยรังสิต
Year: 2563
Subjects: Rangsit University Library
Library cooperation
corporate social responsibility
academic library
school library
library and community networking
community relationship
library and social engagement

description: วารสารรังสิตสารสนเทศ, 26, ฉบับพิเศษ, 257-267
Numerical study of landslide-generated waves
Creators: name: Yang, Gang
Publisher: name: University of British Columbia
Year: 2009

description: This thesis describes a time-domain boundary element method to numerically simulate linear waves generated by a horizontal-moving landslide of an arbitrary profile. The approach to setting up the numerical models is based on a Green's function method and a time-stepping procedure. The numerical models include a boundary condition at the landslide surface that accounts for wave generation, a radiation condition in the far field that accounts for open water, and free surface boundary conditions in a time-stepping procedure that account for wave propagation. By solving the first-order boundary value problem in the time domain, waves generation and propagation are simulated numerically. Although the present numerical method can be applied to a variety of landslide configurations, only vertical wall with horizontal movement is considered in the present study. The corresponding numerical models in two dimensions and three dimensions are developed. The numerical models are initially used to simulate the waves generated by a piston-type wavemaker with a periodic wave paddle movement, and the results are validated against a number of analytical solutions as well as available experimental results. Specific two-dimensional landslide problems are also simulated on a horizontalmoving wall movement and comparisons of numerical results with analytical solutions have demonstrated good agreement. A number of numerical simulations on landslide-generated waves have been performed and a selection of numerical results is presented and analyzed. The results exhibit various features of interest that are discussed. Engineering curves have been developed based on the numerical results to estimate order-of-magnitude wave height caused by landslides. A case study has been carried out to demonstrate the application of numerical models. The numerical method can be applied to account for a landslide of an arbitrary shape and movement, and a water body surrounded by surfaces of various geometries. The approach and numerical models can also be extended to account for nonlinear wave effects. Overall, the numerical method and the numerical models are found to be able to provide a reasonably flexible and reliable means of studying and predicting landslidegenerated waves.
Quantum Weakest Preconditions
Creators: name: D'Hondt, Ellie
name: Panangaden, Prakash
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We develop a notion of predicate transformer and, in particular, the weakest precondition, appropriate for quantum computation. We show that there is a Stone-type duality between the usual state-transformer semantics and the weakest precondition semantics. Rather than trying to reduce quantum computation to probabilistic programming we develop a notion that is directly taken from concepts used in quantum computation. The proof that weakest preconditions exist for completely positive maps follows immediately from the Kraus representation theorem. As an example we give the semantics of Selinger's language in terms of our weakest preconditions. We also cover some specific situations and exhibit an interesting link with stabilizers.
description: 24 pages, 3 figures. Substantial rewrite based on referee reports
Enriched Gradient Recovery for Interface Solutions of the Poisson-Boltzmann Equation
Creators: name: Borleske, George
name: Zhou, Y. C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Numerical Analysis (math.NA)
subject: Quantitative Methods (q-bio.QM)
subject: FOS: Physical sciences
subject: FOS: Mathematics
subject: FOS: Biological sciences
subject: 53B10, 65D18, 92C15

description: Accurate calculation of electrostatic potential and gradient on the molecular surface is highly desirable for the continuum and hybrid modeling of large scale deformation of biomolecules in solvent. In this article a new numerical method is proposed to calculate these quantities on the dielectric interface from the numerical solutions of the Poisson-Boltzmann equation. Our method reconstructs a potential field locally in the least square sense on the polynomial basis enriched with Green's functions, the latter characterize the Coulomb potential induced by charges near the position of reconstruction. This enrichment resembles the decomposition of electrostatic potential into singular Coulomb component and the regular reaction field in the Generalized Born methods. Numerical experiments demonstrate that the enrichment recovery produces drastically more accurate and stable potential gradients on molecular surfaces compared to classical recovery techniques.
Regression analysis for building contractors: an assessment of its potential, an analysis comparing the estimation of brickwork costs by regression analysis and by conventional methods
Creators: name: Ashworth, Allan
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 129999 Built Environment and Design not elsewhere classified
subject: FOS: Civil engineering

description: Regression analysis for building contractors: an assessment of its potential, an analysis comparing the estimation of brickwork costs by regression analysis and by conventional methods
PHOTOELECTROCHEMICAL STUDIES OF MIXED GERMANIUM SULPHOSELENIDE SINGLE CRYSTALS
Creators: name: Sandip Unadkat
Publisher: name: figshare
Year: 2020
Subjects: subject: Condensed Matter Physics
subject: FOS: Physical sciences

description: Photoelectrochemical (PEC) solar cell have been fabricated with single crystals of GeSxSe1-x (x = 0, 0.5, 1)single crystals grown using chemical vapour transport (CVT) technique. Various Solar cells with singlecrystals of GeS, GeS0.5Se0.5 and GeSe as photoelectrodes have been prepared. The solar cell parameters e.g.the fill factor (FF), open circuit voltage (Voc), short circuit current (Isc) and efficiency (h) for all the differentcells have been determined. In order to see the effect of increasing the concentration of selenium on thephotoresponse, the electrolyte and the intensity of illumination was kept constant and all the samples ofGeSxSe1-x were prepared from crystals showing absolutely plane faces. The results have been thoroughlydescribed and the implications have been discussed.
La filosofia va in scena: il problema della teodicea nel teatro di Voltaire
Creators: name: Tallone, Luca
Publisher: name: Filosofia
Year: 2021

description: Il presente articolo si propone di analizzare la riflessione di Voltaire sul tema della teodicea all’interno della sua vasta produzione, sia teorica sia teatrale. Il fine, in particolare, sarà evidenziare il legame che intercorre tra queste due parti apparentemente distinte del corpus voltairiano. Infatti, nonostante Voltaire sia oggi ricordato soprattutto come scrittore e filosofo, all’epoca egli era considerato – e lui stesso si considerava – in primis un grande drammaturgo. All’interno di questo saggio sarà analizzata la tragedia Sémiramis (1748) al fine di comprendere come Voltaire porti sulla scena il tema della giustizia divina. Sarà messo poi in luce come la questione filosofica della teodicea sia presente nella riflessione voltairiana ben prima del terremoto di Lisbona del 1755, e la pièce Sémiramis evidenzia questo aspetto. In questa tragedia l’autore anticipa alcune importanti riflessioni del Poème sur le désastre de Lisbonne (1756) offrendo anche una soluzione originale al problema.
description: Filosofia, N. 66 (2021): Filosofia e teatro
Frustration-induced exotic properties of magnetic molecules
Creators: name: Schnack, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Geometric frustration of interacting spin systems is the driving force of a variety of fascinating phenomena in low-dimensional magnetism. In this contribution I will review recent results on frustration-induced effects in magnetic molecules, i.e. zero-dimensional magnetic systems, as well as in a recently synthesized frustrated molecule-based spin tube, i.e. a one-dimensional spin system.
description: 5 pages, 9 eps figures; proceedings of the symposium on "Spin- and charge-correlations in molecule-based materials", October 2005, Koenigstein (Taunus), Germany
WAGE DETERMINATION FOR REGULAR HIRED FARM WORKERS: AN EMPIRICAL ANALYSIS FOR GEORGIA
Creators: name: Gunter, Lewell F.
name: Gunter, Lewell F.
Publisher: name: Unknown
Year: 1986
Subjects: Labor and Human Capital

description: Regular hired farm workers, performing 150 days or more of farm work annually, became increasingly important in the 1970's. The number of regular hired workers in the United States increased by almost 50 percent during the decade, while the number of seasonal workers, operators, and unpaid family workers declined. Pricing of regular hired labor is investigated through estimation of three nested wage determination models in a case study analysis for Georgia. Micro-level data on individual workers were used to analyze the effects of general human capital, farm worker duties, local labor market conditions, and farm characteristics on wage rates.
Combined data including measurements, additional description, phylogenetic analyses, and more from Ancient crested penguin constrains timing of recruitment into seabird hotspot
Creators: name: Thomas, Daniel B.
name: Tennyson, Alan J. D.
name: R. Paul Scofield
name: Heath, Tracy A.
name: Pett, Walker
name: Ksepka, Daniel T.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 40308 Palaeontology (incl. Palynology)
subject: FOS: Earth and related environmental sciences
subject: 60301 Animal Systematics and Taxonomy
subject: 60310 Plant Systematics and Taxonomy

description: Electronic supplementary material s1
Two-size Probability-Changing Cluster Algorithm
Creators: name: Surungan, Tasrief
name: Okabe, Yutaka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We propose a self-adapted Monte Carlo approach to automatically determine the critical temperature by simulating two systems with different sizes at the same temperature. The temperature is increased or decreased by checking the short-time average of the correlation ratios of the two system sizes. The critical temperature is achieved using the negative feedback mechanism, and the thermal average near the critical temperature can be calculated precisely. The proposed approach is a general method to treat second-order phase transition, first-order phase transition, and Berezinskii-Kosterlitz-Thouless transition on the equal footing.
description: 17 pages, 17 figures
Evolution of reconnection along an arcade of magnetic loops
Creators: name: Grigis, Paolo C.
name: Benz, Arnold O.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: RHESSI observations of a solar flare showing continuous motions of double hard X-ray sources interpreted as footpoints of magnetic loops are presented. The temporal evolution shows many distinct emission peaks of duration of some tens of seconds ('elementary flare bursts'). Elementary flare bursts have been interpreted as instabilities or oscillations of the reconnection process leading to an unsteady release of magnetic energy. These interpretations based on two-dimensional concepts cannot explain these observations, showing that the flare elements are displaced in a third dimension along the arcade. Therefore, the observed flare elements are not a modulation of the reconnection process, but originate as this process progresses along an arcade of magnetic loops. Contrary to previous reports, we find no correlation between footpoint motion and hard X-ray flux. This flare apparently contradicts the predictions of the standard translation invariant 2.5D reconnection models.
description: 4 pages, 3 figures, to be published in Astrophysical Journal Letters
Recurrent Quantum Neural Networks
Creators: name: Bausch, Johannes
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Quantum Physics (quant-ph)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: Recurrent neural networks are the foundation of many sequence-to-sequence models in machine learning, such as machine translation and speech synthesis. In contrast, applied quantum computing is in its infancy. Nevertheless there already exist quantum machine learning models such as variational quantum eigensolvers which have been used successfully e.g. in the context of energy minimization tasks. In this work we construct a quantum recurrent neural network (QRNN) with demonstrable performance on non-trivial tasks such as sequence learning and integer digit classification. The QRNN cell is built from parametrized quantum neurons, which, in conjunction with amplitude amplification, create a nonlinear activation of polynomials of its inputs and cell state, and allow the extraction of a probability distribution over predicted classes at each step. To study the model's performance, we provide an implementation in pytorch, which allows the relatively efficient optimization of parametrized quantum circuits with thousands of parameters. We establish a QRNN training setup by benchmarking optimization hyperparameters, and analyse suitable network topologies for simple memorisation and sequence prediction tasks from Elman's seminal paper (1990) on temporal structure learning. We then proceed to evaluate the QRNN on MNIST classification, both by feeding the QRNN each image pixel-by-pixel; and by utilising modern data augmentation as preprocessing step. Finally, we analyse to what extent the unitary nature of the network counteracts the vanishing gradient problem that plagues many existing quantum classifiers and classical RNNs.
description: 22 pages
Sweepouts of amalgamated 3-manifolds
Creators: name: Bachman, David
name: Schleimer, Saul
name: Sedgwick, Eric
Publisher: name: arXiv
Year: 2005
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M99, 57N10, 57M27

description: We show that if two 3-manifolds with toroidal boundary are glued via a `sufficiently complicated' map then every Heegaard splitting of the resulting 3-manifold is weakly reducible. Additionally, if Z is a manifold obtained by gluing X and Y, two connected small manifolds with incompressible boundary, along a closed surface F. Then the genus g(Z) of Z is greater than or equal to 1/2(g(X)+g(Y)-2g(F)). Both results follow from a new technique to simplify the intersection between an incompressible surface and a strongly irreducible Heegaard splitting.
description: This is the version published by Algebraic & Geometric Topology on 24 February 2006
STATISTICAL SIGNIFICANCE AND STABILITY OF THE HOG CYCLE
Creators: name: Shonkwiler, John Scott
name: Spreen, Thomas H.
name: Shonkwiler, John Scott
name: Spreen, Thomas H.
Publisher: name: Unknown
Year: 1986
Subjects: Livestock Production/Industries

description: Cyclical fluctuations in prices and production have long characterized the United States hog industry. Recent evidence suggests that the length of the hog cycle has changed. In order to determine whether the change in cycle length is statistically significant, the bootstrap technique is employed to derive confidence intervals for point estimates of the hog cycle. Application of the bootstrap technique to time series models is discussed and empirical results are presented. It is concluded that the hog cycle is undergoing rather complicated changes based on cycle lengths that are calculated to be statistically different from zero.
Measurement of the Spin Absorption Anisotropy in Lateral Spin Valves
Creators: name: Cosset-Chéneau, Maxen
name: Vila, Laurent
name: Zahnd, Gilles
name: Gusakova, Daria
name: Pham, Van Tuong
name: Grèzes, Cécile
name: Waintal, Xavier
name: Marty, Alain
name: Jaffrès, Henri
name: Attané, Jean-Philippe
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The spin absorption process in a ferromagnetic material depends on the spin orientation relativelyto the magnetization. Using a ferromagnet to absorb the pure spin current created within a lateralspin-valve, we evidence and quantify a sizeable orientation dependence of the spin absorption inCo, CoFe and NiFe. These experiments allow determining the spin-mixing conductance, an elusivebut fundamental parameter of the spin-dependent transport. We show that the obtained valuescannot be understood within a model considering only the Larmor, transverse decoherence and spindiffusion lengths, and rather suggest that the spin-mixing conductance is actually limited by theSharvin conductance.
Simulation of Various Resonators as Viscometer for Engine Oils
Creators: name: Tze Ching Ong
name: Buja, Andy
name: Mawang, Dino Sabastian Ak
name: SIa, Chee Kiong
name: Khee, Yee See
name: Ong, Pauline
Publisher: name: figshare
Year: 2020
Subjects: subject: Mechanical Engineering
subject: FOS: Mechanical engineering

description: The viscometer is an instrument used to identify the resistance of a fluid to shear or tensile stress. Accurate characterization of viscosity is important in analyzing many engineering situations, especially in the automation industries, which consume engine oils that associate with the functionality or performance of vehicles and machinery. Therefore, this work aims to simulate various sensors via resonators before the fabrication process is performed. The viscosity is justified based on the variation of dielectric properties of the fluid. T-resonator shows the highest sensitivity in all designs with an S11 value of -54.212dB and DSRR with Roger 3003 performs the best in terms of Q-factor with 1883. This simulation results can be verified through experimentation as future works.
Electroweak Physics
Creators: name: Hollik, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Work on electroweak precision calculations and event generators for electroweak physics studies at current and future colliders is summarized.
description: Presented by A. Denner at the final meeting of the European Network ``Physics at Colliders'', Montpellier, France, September 26-27, 2004
Abundances of refractory elements in the atmospheres of stars with extrasolar planets
Creators: name: Gilli, G.
name: Israelian, G.
name: Ecuvillon, A.
name: Santos, N. C.
name: Mayor, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This work presents a uniform and homogeneous study of chemical abundances of refractory elements in 101 stars with and 94 without known planetary companions. We carry out an in-depth investigation of the abundances of Si, Ca, Sc, Ti, V, Cr, Mn, Co, Ni, Na, Mg and Al. The new comparison sample, spanning the metallicity range -0.70< [Fe/H]< 0.50, fills the gap that previously existed, mainly at high metallicities, in the number of stars without known planets. We used an enlarged set of data including new observations, especially for the field ``single'' comparison stars. The line list previously studied by other authors was improved: on average we analysed 90 spectral lines in every spectrum and carefully measured more than 16600 equivalent widths (EW) to calculate the abundances. We investigate possible differences between the chemical abundances of the two groups of stars, both with and without planets. The results are globally comparable to those obtained by other authors, and in most cases the abundance trends of planet-host stars are very similar to those of the comparison sample. This work represents a step towards the comprehension of recently discovered planetary systems. These results could also be useful for verifying galactic models at high metallicities and consequently improve our knowledge of stellar nucleosynthesis and galactic chemical evolution.
description: 15 pages, 11 figures, accepted for publication in A&A. Tables 7-10 are available at www.iac.es/proyect/abuntest, or in the electronic version of the Journal
Exchange interactions, Yang-Baxter relations and transparent particles
Creators: name: Polychronakos, Alexios P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: We introduce a class of particle models in one dimension involving exchange interactions that have scattering properties satisfying the Yang-Baxter consistency condition. A subclass of these models exhibits reflectionless scattering, in which particles are "transparent" to each other, generalizing a property hitherto only known for the exchange Calogero model. The thermodynamics of these systems can be derived using the asymptotic Bethe-ansatz method.
description: 13 pages, 1 figure
Hennings, Emmy: Ein Bruder Klausen-Buch für die Schweizer Jugend.Scheuber, J. K.: Trotzli begegnet dem Bruder Klaus. Mit vielen Bildern von Tonamichel. Verlag Benziger, Einsiedeln.
Creators: name: Ball-Hennings, Emmy
Publisher: name: [s.n.]
Year: 2024

description: Dokument
Lorentz Beams
Creators: name: Gawhary, Omar El
name: Severini, Sergio
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: A new kind of tridimensional scalar optical beams is introduced. These beams are called Lorentz beams because the form of their transverse pattern in the source plane is the product of two independent Lorentz functions. Closed-form expression of free-space propagation under paraxial limit is derived and pseudo non-diffracting features pointed out. Moreover, as the slowly varying part of these fields fulfils the scalar paraxial wave equation, it follows that there exist also Lorentz-Gauss beams, i.e. beams obtained by multipying the original Lorentz beam to a Gaussian apodization function. Although the existence of Lorentz-Gauss beams can be shown by using two different and independent ways obtained recently from Kiselev [Opt. Spectr. 96, 4 (2004)] and Gutierrez-Vega et al. [JOSA A 22, 289-298, (2005)], here we have followed a third different approach, which makes use of Lie's group theory, and which possesses the merit to put into evidence the symmetries present in paraxial Optics.
description: 11 pages, 1 figure, submitted to Journal of Optics A
FORMATION OF THE CAPITAL OF COMMERCIAL BANKS
Creators: name: Ruzmetova, N.K.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2021
Subjects: БАНК
КАПИТАЛ
НАКОПЛЕНИЕ КАПИТАЛА БАНКА
СОБСТВЕННЫЙ КАПИТАЛ БАНКА
ДОСТАТОЧНОСТЬ КАПИТАЛА БАНКА
БАЗЕЛЬСКИЕ СТАНДАРТЫ
BANK
CAPITAL
BANK’S CAPITAL FORMATION
BANK'S EQUITY CAPITAL
BANK CAPITAL ADEQUACY
BASEL STANDARDS

description: The article presents the results of a study on the methods of forming the capital of commercial banks in Uzbekistan. The author examines the importance of forming the capital of commercial banks in the context of competition between banks in the interbank market. Analysis of the financial statements of commercial banks in Uzbekistan and other resources made it possible to formulate a number of proposals and recommendations.
One-loop Jet Functions by Geometric Subtraction
Creators: name: Basdew-Sharma, Avanish
name: Herzog, Franz
name: van Velzen, Solange Schrijnder
name: Waalewijn, Wouter J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: In factorization formulae for cross sections of scattering processes, final-state jets are described by jet functions, which are a crucial ingredient in the resummation of large logarithms. We present an approach to calculate generic one-loop jet functions, by using the geometric subtraction scheme. This method leads to local counterterms generated from a slicing procedure; and whose analytic integration is particularly simple. The poles are obtained analytically, up to an integration over the azimuthal angle for the observable-dependent soft counterterm. The poles depend only on the soft limit of the observable, characterized by a power law, and the finite term is written as a numerical integral. We illustrate our method by reproducing the known expressions for the jet function for angularities, the jet shape, and jets defined through a cone or $k_T$ algorithm. As a new result, we obtain the one-loop jet function for an angularity measurement in $e^+e^-$ collisions, that accounts for the formally power-suppressed but potentially large effect of recoil. An implementation of our approach is made available as the GOJet Mathematica package accompanying this paper.
description: 29 pages, 8 figures, for accompanying Mathematica package see https://bitbucket.org/GOJet/gojet
Stochastic Market Structure: Concentration Measures and Motion Picture Antitrust
Creators: name: De Vany, Arthur
name: Kim, Cassey Lee Hong
name: De Vany, Arthur
name: Kim, Cassey Lee Hong
Publisher: name: Unknown
Year: 2003
Subjects: Industrial Organization

description: This paper examines the usefulness of concentration indices in characterizing the degree of competition in the motion picture industry. It shows that concentration ratios and the Herfindahl-Hirschman index give a misleading picture of the degree of competition in the industry. All these indices exhibit large fluctuations that make the common practice of calculating a static measure erroneous. Market shares are shown to follow a stochastic Pareto- Lévy motion in which the market shares of the leading distributors are unstable, and positions often change. We show that this stochastic industry structure implies that the expected value of the HHI is undefined (infinite!). The motion picture industry is (stochastically) concentrated but highly competitive. We argue that this is likely to be true of other industries with similar stochastic features.
Four deësis themes in the Church of Oški
Creators: name: Djobadze, Wachtang Zizischwili
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 72 (1988): Oriens christianus, Band 72
SPATIAL FORMS OF REGIONAL DEVELOPMENT PROBLEMS MANIFESTATION
Creators: name: Sizova Yu.S.
name: Sherapova S.Kh.
name: Malkova, U.A.
Publisher: name: Экономика и бизнес: теория и практика
Year: 2021
Subjects: ПРОСТРАНСТВЕННОЕ РАЗВИТИЕ
ПРОБЛЕМЫ РЕГИОНАЛЬНОГО РАЗВИТИЯ
БЕЗРАБОТИЦА
СОЦИАЛЬНО-ЭКОНОМИЧЕСКИЕ ПРОБЛЕМЫ
SPATIAL DEVELOPMENT
PROBLEMS OF REGIONAL DEVELOPMENT
UNEMPLOYMENT
SOCIO-ECONOMIC PROBLEMS

description: Nevertheless "The strategy of spatial development of the Russian Federation for the period up to 2025" was adopted the problem of territorial-spatial development remains relevant and seen to be relevant in today's conditions. In view of this consideration, the problem of spatial development on the territory of Russia is topical. This paper examines the key problems of territorial and spatial development that are typical for all subjects of the Federation in general, and in particular for the Karachai-Cherkes Republic. A comparative analysis was made between the indicators for the Russian Federation, the North Caucasus Federal District and the Karachaш-Cherkes Republic on the following indicators: investment in fixed assets, unemployment rate, share of the population with incomes below the subsistence minimum. Based on this comparative analysis, it is concluded that the situation in the region with regard to the spatial forms of regional development problems has serious shortcomings, which are manifested in the form of the poor quality of socio-economic development of the Republic, and the existing problems of the region require urgent state intervention aimed more at the development of various sectors of the economy. Certain measures are suggested to eliminate the identified shortcomings.
Neutron Spectra from Intermediate-Energy Nucleus-Nucleus Reactions
Creators: name: Iwase, Hiroshi
name: Iwata, Yoshiyuki
name: Nakamura, Takashi
name: Gudima, Konstantin
name: Mashnik, Stepan
name: Sierk, Arnold
name: Prael, Richard
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: Astrophysics (astro-ph)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Double-differential cross sections of neutron production at angles from 0 to 110 degrees from many reactions induced by light and medium nuclei on targets from 12-C to 208-Pb, at several incident energies from 95 to 600 MeV/A have been measured recently at the Institute of Physical and Chemical Research (RIKEN) Ring Cyclotron in Japan and at the Heavy-Ion Medical Accelerator of the National Institute of Radiological Science in Chiba, Japan using the time-of-flight technique. We have analyzed all these new measurements using the Quantum Molecular Dynamics (QMD) model, the Oak Ridge intranuclear cascade model HIC, the ISABEL intranuclear cascade model from LAHET, and the Los Alamos version of the Quark-Gluon String Model code LAQGSM03. On the whole, all four models used here describe reasonably well most of the measured neutron spectra, although different models agree differently with data from specific reactions and some serious discrepances are observed for some reactions. We present here some illustrative results from our study, discuss possible reasons for some of the observed discrepancies and try to outline ways to further improve the tested codes in order to address these problems.
description: 5 pages, pdf, 3 figures, to be published in Proc. Int. Conf. on Nuclear Data for Sciience & Technology (ND2004), Santa Fe, USA, Sept. 26 - Oct. 1, 2004