cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Experimental investigation of boiling heat transfer to R-134a refrigerant
Creators: name: Podut, Alexandru Ion
Publisher: name: University of British Columbia
Year: 2009

description: The aim of the present investigation was to improve the understanding of the boiling heat transfer to alternative refrigerants, specifically to tetrafluoroethane (R-134a). The refrigerants are mainly used in heat transfer applications, and due to environmental limitations, a need for assessing the suitability from a heat transfer efficiency perspective of new candidates has become a priority. The heat transfer coefficient that mainly controls the heat transfer phenomenon is very dependent on the operating conditions and on the geometry of the equipment and therefore an experimental assessments of proposed alternative refrigerants are required. In order to evaluate the performance of R-134a, a significant part of the project consisted in designing and building an experimental apparatus for the heat transfer study. A closed circulation loop with heat transfer and hydraulic equipment was constructed. The apparatus was equipped with state of art instrumentation, control and data acquisition equipment. Further, subcooled boiling experiments were pursued. These were carried out based on an experimental strategy that led to a significant amount of data, limited only by the maximum mass flow rate that could be achieved. Saturated boiling experiments that followed generated a limited data bank due to technical factors. For assessing the results, several theoretical methods for predicting the heat transfer coefficient were employed. Chen's (1966) correlation was used for both subcooled and saturated boiling data validation. A different method of extending Chen's correlation to subcooled boiling, when used for verifying experimental data was proposed. Liu and Winterton (1997) and Gungor and Winterton (1986 and 1987) correlations were also employed for validating the experimental data. This exercise confirmed that the measured vs. calculated heat transfer coefficients were within the range of accuracy claimed by correlations authors and/or acceptable from an engineering perspective. Discussions and conclusions for both subcooled and saturated boiling were part of the data analysis.
Economic Growth Theories and the Relationship between Interest and Investment Rates
Creators: name: Rocha, Alexandre
Publisher: name: figshare
Year: 2020
Subjects: subject: 140202 Economic Development and Growth
subject: FOS: Economics and business

description: This article compares some of the central features of the Modern Cambridge School with the main results put forward by the Growth Accounting Methodology and the New Growth Theory. The overall purpose of this comparison is to show the importance of the relationship between the interest and investment rates, an aspect generally stressed by Post-Keynesian authors, but rarely considered by mainstream economists. [Journal of Economics and Development Studies]
Diffusive hydrogenation reactions of CO embedded in amorphous solid water at elevated temperatures ~70 K
Creators: name: Tsuge, Masashi
name: Hidaka, Hiroshi
name: Kouchi, Akira
name: Watanabe, Naoki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The surface processes on interstellar dust grains have an important role in the chemical evolution in molecular clouds. Hydrogenation reactions on ice surfaces have been extensively investigated and are known to proceed at low temperatures mostly below 20 K. In contrast, information about the chemical processes of molecules within an ice mantle is lacking. In this work, we investigated diffusive hydrogenation reactions of carbon monoxide (CO) embedded in amorphous solid water (ASW) as a model case and discovered that the hydrogenation of CO efficiently proceeds to yield H2CO and CH3OH even above 20 K when CO is buried beneath ASW. The experimental results suggest that hydrogen atoms diffuse through the cracks of ASW and have a sufficient residence time to react with embedded CO. The hydrogenation reactions occurred even at temperatures up to ~70 K. Cracks collapse at elevated temperatures but the occurrence of hydrogenation reactions means that the cracks would not completely disappear and remain large enough for penetration by hydrogen atoms. Considering the hydrogen-atom fluence in the laboratory and molecular clouds, we suggest that the penetration of hydrogen and its reactions within the ice mantle occur in astrophysical environments. Unified Astronomy
Iranilson Correia de Lima.pdf
Creators: name: Iranilson Lima
Publisher: name: figshare
Year: 2020
Subjects: subject: 170103 Educational Psychology
subject: FOS: Psychology

description: Este estudo investiga as diferenças nas variáveis ​​axiológicas de adolescentes, estudantes do ensino médio, considerando as variáveis ​​de sexo e religião. Compreender o sistema de valores de adolescentes pode contribuir com novas formas e possibilidades de educação, formar e constituir identidades. Tomou-se por base na construção dessa análise a teoria de valores humanos elaborada por Shalom Schwartz. Usou-se o Questionário de Perfis de Valores, validado no Brasil por Tamayo e Porto. Os dados foram coletados com 806 estudantes do 1º ano do ensino médio de escolas confessionais em diferentes cidades brasileiras.
COMPARING MODELS FOR CONTINGENT VALUATION SURVEYS: STATISTICAL EFFICIENCY AND THE PRECISION OF BENEFIT ESTIMATES
Creators: name: Park, Timothy A.
name: Loomis, John B.
name: Park, Timothy A.
name: Loomis, John B.
Publisher: name: Unknown
Year: 1992
Subjects: Resource /Energy Economics and Policy

description: This paper empirically tested the three conditions identified by McConnell for equivalence of the linear utility difference model and the valuation function approach to dichotomous choice contingent valuation. Using a contingent valuation survey for deer hunting in California, two of the three conditions were violated. Even though the models are not simple linear transforms of each other for this survey, estimates of mean willingness to pay and their associated 95% confidence intervals around the mean were quite similar for the valuation methods.
Critical phase boundary and finite-size fluctuations in Su-Schrieffer-Heeger model with random inter-cell couplings
Creators: name: Shapiro, D. S.
name: Remizov, S. V.
name: Lebedev, A. V.
name: Babukhin, D. V.
name: Akzyanov, R. S.
name: Zhukov, A. A.
name: Bork, L. V.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: A dimerized fermion chain, described by Su-Schrieffer-Heeger (SSH) model, is a well-known example of 1D system with a non-trivial band topology. An interplay of disorder and topological ordering in the SSH model is of a great interest owing to experimental advancements in synthesized quantum simulators. In this work, we investigate a special sort of a disorder when inter-cell hopping amplitudes are random. Using a definition for $\mathbb{Z}_2$-topological invariant $ν\in \{ 0; 1\}$ in terms of a non-Hermitian part of the total Hamiltonian, we calculate $\langleν\rangle$ averaged by random realizations. This allows to find (i) an analytical form of the critical surface that separates phases of distinct topological orders and (ii) finite size fluctuations of $ν$ for arbitrary disorder strength. Numerical simulations of the edge modes formation and gap suppression at the transition are provided for finite-size system. In the end, we discuss a band-touching condition derived within the averaged Green function method for a thermodynamic limit.
description: 8 pages, 4 figures. Version accepted in Phys. Rev. A
First results from SMAUG: Uncovering the Origin of the Multiphase Circumgalactic Medium with a Comparative Analysis of Idealized and Cosmological Simulations
Creators: name: Fielding, Drummond B.
name: Tonnesen, Stephanie
name: DeFelippis, Daniel
name: Li, Miao
name: Su, Kung-Yi
name: Bryan, Greg L.
name: Kim, Chang-Goo
name: Forbes, John C.
name: Somerville, Rachel S.
name: Battaglia, Nicholas
name: Schneider, Evan E.
name: Li, Yuan
name: Choi, Ena
name: Hayward, Christopher C.
name: Hernquist, Lars
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We examine the properties of the circumgalactic medium (CGM) at low redshift in a range of simulated Milky Way mass halos. The sample is comprised of seven idealized simulations, an adaptive mesh refinement cosmological zoom-in simulation, and two groups of 50 halos with star forming or quiescent galaxies taken from the IllustrisTNG100 simulation. The simulations have very different setups, resolution, and feedback models, but are analyzed in a uniform manner. By comparing median radial profiles and mass distributions of CGM properties, we isolate key similarities and differences. In doing so, we advance the efforts of the SMAUG (Simulating Multiscale Astrophysics to Understand Galaxies) project that aims to understand the inherently multiscale galaxy formation process. In the cosmological simulations, the CGM exhibits nearly flat temperature distributions, and broad pressure and radial velocity distributions. In the idealized simulations, similar distributions are found in the inner CGM ($\lesssim 0.5 \, r_{\rm 200c}$) when strong galactic feedback models are employed, but the outer CGM ($\gtrsim 0.5 \, r_{\rm 200c}$) has a much less prominent cold phase, and narrower pressure and velocity distributions even in models with strong feedback. This comparative analysis demonstrates the dominant role feedback plays in shaping the inner CGM and the increased importance of cosmological effects, such as nonspherical accretion and satellite galaxies, in the outer CGM. Furthermore, our findings highlight that while cosmological simulations are required to capture the multiphase structure of the CGM at large radii, idealized simulations provide a robust framework to study how galactic feedback interacts with the inner CGM and thereby provide a reliable avenue to constrain feedback prescriptions.
description: More information on the SMAUG project and the other first result papers can be found here: https://www.simonsfoundation.org/flatiron/center-for-computational-astrophysics/galaxy-formation/smaug/papersplash1
Dynamical Casimir effect from fermions in an oscillating bag in 1+1 dimensions
Creators: name: Fosco, C. D.
name: Hansen, G.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We evaluate dissipative effects for a system consisting of a massive Dirac field confined between two walls, one of them oscillating, in 1+1 dimensions. In the model that we consider, a dimensionless parameter characterizing each wall is tuned so that bag-boundary conditions are attained for a particular value. We present explicit results for the probability of creating a fermion pair out of the vacuum, and relate the total vacuum decay probability to the imaginary part of the effective action.
description: 11 pages, LaTeX. Typo in Eq.(28), and in equations for the massless case corrected
Dressing a black hole with non-minimally coupled scalar field hair
Creators: name: Winstanley, Elizabeth
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We investigate the possibility of dressing a four-dimensional black hole with classical scalar field hair which is non-minimally coupled to the space-time curvature. Our model includes a cosmological constant but no self-interaction potential for the scalar field. We are able to rule out black hole hair except when the cosmological constant is negative and the constant governing the coupling to the Ricci scalar curvature is positive. In this case, non-trivial hairy black hole solutions exist, at least some of which are linearly stable. However, when the coupling constant becomes too large, the black hole hair becomes unstable.
description: 17 pages, 7 figures, uses iopart.cls. Minor changes, accepted for publication in Classical and Quantum Gravity
Local Lipschitz bounds for solutions to certain singular elliptic equations involving one-Laplacian
Creators: name: Tsubouchi, Shuntaro
Publisher: name: arXiv
Year: 2020
Subjects: subject: Analysis of PDEs (math.AP)
subject: FOS: Mathematics
subject: 35B65, 35A15, 35J92

description: In this paper local Lipschitz regularity of weak solutions to certain singular elliptic equations involving one-Laplacian is studied. Equations treated here also contains another well-behaving elliptic operator such as $p$-Laplacian with $1
description: 29 pages, including Appendix
Anomalous Gurzhi effect
Creators: name: Sukhachov, P. O.
name: Trauzettel, Björn
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate the role of the chiral anomaly in hydrodynamic and crossover regimes of transport in a Weyl or Dirac semimetal film. We show that the magnetic-field-dependent part of the electric conductivity in the direction of the magnetic field develops an unusual nonmonotonic dependence on temperature dubbed the anomalous Gurzhi effect. This effect is realized in sufficiently clean semimetals subject to a classically weak magnetic field where the electron-electron scattering dominates and the relaxation of the valley-imbalance charge density happens at the boundaries. Moreover, the conditions for the realization of the conventional Gurzhi effect in hydrodynamic and crossover regimes of transport in three-dimensional Dirac and Weyl semimetals are determined.
description: 21 pages, 4 multi-panel figures; published version
Potential-density pairs for axisymmetric galaxies: the influence of scalar fields
Creators: name: Rodriguez-Meza, M. A.
name: Cervantes-Cota, Jorge L.
name: Pedraza, M. I.
name: Tlapanco, J. F.
name: De la Calleja, E. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a formulation for potential-density pairs to describe axisymmetric galaxies in the Newtonian limit of scalar-tensor theories of gravity. The scalar field is described by a modified Helmholtz equation with a source that is coupled to the standard Poisson equation of Newtonian gravity. The net gravitational force is given by two contributions: the standard Newtonian potential plus a term stemming from massive scalar fields. General solutions have been found for axisymmetric systems and the multipole expansion of the Yukawa potential is given. In particular, we have computed potential-density pairs of galactic disks for an exponential profile and their rotation curves.
description: 8 pages, no figures, corrected version to the one that will appear in Gen. Relativ. Gravit., where a small typo in eq. (13) is present
IC 225: a dwarf elliptical galaxy with a peculiar blue core
Creators: name: Gu, Qiusheng
name: Zhao, Yinghe
name: Shi, Lei
name: Peng, Zhixin
name: Luo, Xinlian
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present the discovery of a peculiar blue core in the elliptical galaxy IC 225 by using images and spectrum from the Sloan Digital Sky Survey (SDSS). The outer parts of the surface brightness profiles of u-, g-, r-, i- and z-band SDSS images for IC 225 are well fitted with an exponential function. The fitting results show that IC 225 follows the same relations between the magnitude, scale length and central surface brightness for dwarf elliptical galaxies. Its absolute blue magnitude (M_B) is -17.14 mag, all of which suggest that IC 225 is a typical dwarf elliptical galaxy. The g-r color profile indicates a very blue core with a radius of 2 arcseconds, which is also clearly seen in the RGB image made of g-, r- and i-band SDSS images. The SDSS optical spectrum exhibits strong and very narrow nebular emission lines. The metal abundances derived by the standard methods, which are 12+log(O/H) = 8.98, log(N/O) = -0.77 and 12+log(S+/H+) = 6.76, turn out to be significantly higher than that predicted by the well-known luminosity-metallicity relation. After carefully inspecting the central region of IC 225, we find that there are two distinct nuclei, separated by 1.4 arcseconds, the off-nucleated one is even bluer than the nucleus of IC 225. The asymmetric line profiles of higher-order Balmer lines indicate that the emission lines are bluer shifted relative to the absorption lines, suggesting that the line emission arises from the off-center core, whose nature is a metal-rich Hii region. To the best of our knowledge, it is the first high-metallicity Hii region detected in a dwarf elliptical galaxy.
description: 7 figures, accepted for publication in AJ
Recursion operators and the hierarchies of MKdV equations related to $D_4^{(1)}$, $D_4^{(2)}$ and $D_4^{(3)}$ Kac-Moody algebras
Creators: name: Gerdjikov, V. S.
name: Stefanov, A. A.
name: Iliev, I. D.
name: Boyadjiev, G. P.
name: Smirnov, A. O.
name: Matveev, V. B.
name: Pavlov, M. V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 35Q53, 17B70, 37K10

description: We constructed the three nonequivalent gradings in the algebra $D_4 \simeq so(8)$. The first one is the standard one obtained with the Coxeter automorphism $C_1=S_{α_2} S_{α_1}S_{α_3}S_{α_4}$ using its dihedral realization. In the second one we use $C_2 = C_1R$ where $R$ is the mirror automorphism. The third one is $C_3 = S_{α_2}S_{α_1}T$ where $T$ is the external automorphism of order 3. For each of these gradings we constructed the basis in the corresponding linear subspaces $\mathfrak{g}^{(k)}$, the orbits of the Coxeter automorphisms and the related Lax pairs generating the corresponding mKdV hierarchies. We found compact expressions for each of the hierarchies in terms of the recursion operators. At the end we wrote explicitly the first nontrivial mKdV equations and their Hamiltonians. For $D_4^{(1)}$ these are in fact two mKdV systems, due to the fact that in this case the exponent $3$ has multiplicity 2. Each of these mKdV systems consist of 4 equations of third order with respect to $\partial_x$. For $D_4^{(2)}$ this is a system of three equations of third order with respect to $\partial_x$. Finally, for $D_4^{(3)}$ this is a system of two equations of fifth order with respect to $\partial_x$.
description: 21 pages, 1 table, 1 figure
MAGIC observations of very high energy gamma-rays from HESS J1813-178
Creators: name: Albert, J.
name: collaboration, MAGIC
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Recently, the HESS collaboration has reported the detection of gamma-ray emission above a few hundred GeV from eight new sources located close to the Galactic Plane. The source HESS J1813-178 has sparked particular interest, as subsequent radio observations imply an association with SNR G12.82-0.02. Triggered by the detection in VHE gamma-rays, a positionally coincident source has also been found in INTEGRAL and ASCA data. In this Letter we present MAGIC observations of HESS J1813-178, resulting in the detection of a differential gamma-ray flux consistent with a hard-slope power law, described as dN/(dA dt dE) = (3.3+/-0.5)*10^{-12} (E/TeV)^{-2.1+/-0.2} cm^(-2)s^(-1)TeV^(-1). We briefly discuss the observational technique used, the procedure implemented for the data analysis, and put this detection in the perspective of multifrequency observations.
description: Accepted by ApJ Letters
Zoega, Georgius: Catalogus codicum Copticorum manu scriptorum qui in Museo Borgiano Velitris adservantur
Creators: name: Assfalg, Julius
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 60 (1976): Oriens christianus, Band 60
Messianische Juden: Wer ist ein Jude? Wer bestimmt in Deutschland über den jüdischen Glauben? Und gehören jüdische Minderheiten zur jüdischen Community in Deutschland?
Creators: name: Bernstein, Avi
name: Blum, Lydia
name: Bromberg, Alexander
Publisher: name: Zenodo
Year: 2022
Subjects: Messianische Juden
Juden
messianisch
Yeshuah
Jeshua
Jesus
Messias
Wer ist Jude
Wer ist ein Jude

description: Deutschland nahm ab dem Jahr 1990 mit den so genannten “Kontigentsflüchtlingen” Juden aus den Nachfolgestaaten der ehemaligen Sowjetunion auf.10 Damit hat sich die Zahl der Juden in Deutschland von angeblich etwa 29.000 im Jahr 1990 auf knapp 300.000 binnen lediglich 15 Jahren verzehnfacht. Unter ihnen auch “messianische Juden”, welche bis dahin im Deutschen Judentum nach 1945 keine Rolle spielten. Zum Vergleich: vor dem Hitler-Regime lebten im Deutschen Reich laut Volkszählung vom Juni 1933 etwa 503.000 Juden. Die im heutigen Deutschland einzig in Frage gestellte Gruppe sind die etwa 20.000 bis bis 30.000 ‘messianischen Juden’. Sie leiden unter teils massiven Angriffen, die insbesondere von der jüdischen Gemeinschaft selbst ausgehen. Wir sind nunmehr der Frage nachgegangen, was einen ‘messianischen Juden’ in Deutschland aus theologischer, geschichtlicher und juristischer Perspektive ausmacht und ob Kritik am messianischen Judentum berechtigt oder übergriffig ist, mithin eine besondere Form des Antisemitismus. Die Essenz unseres White Papers ist, dass die Kritik und der blanke Hass, der messianischen Juden oft entgegenschlägt, zwar nicht die Kriterien des Antisemitismus erfüllt, jedoch alle Merkmale von gruppenbezogener Menschenfeindlichkeit aufweist. Wir sind überdies zu dem Ergebnis gelangt, dass messianische Juden ohne jeden Zweifel in Deutschland als Juden im Spektrum des diversen (Diversity) Judentums anzusehen sind. Eine Vertretung ihrer Interessen durch jüdische Verbände ist theologisch und geschichtlich völlig unproblematisch und sogar erforderlich, sofern es sich nicht um verkappte christliche Missionare handelt.
RF tag data + R code
Creators: name: Roberts, Ben
name: Neal, Mark
name: Snooke, Neal
name: Labrosse, Frederic
name: Curteis, Tristan
name: Mariecia Fraser
Publisher: name: figshare
Year: 2020
Subjects: Biological Techniques

description: Data and R code used for statistical analysis of the publication 'A bespoke low-cost system for radio tracking animals using multi-rotor and fixed-wing unmanned aerial vehicles (UAVs)'
Topologically Nontrivial Interband Plasmons in Type-II Weyl Semimetal MoTe$_2$
Creators: name: Jia, Xun
name: Wang, Maoyuan
name: Yan, Dayu
name: Xue, Siwei
name: Zhang, Shuyuan
name: Zhou, Jianhui
name: Shi, Youguo
name: Zhu, Xuetao
name: Yao, Yugui
name: Guo, Jiandong
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: In many realistic topological materials, more than one kind of fermions contribute to the electronic bands crossing the Fermi level, leading to various novel phenomena. Here, using momentum-resolved inelastic electron scattering, we investigate the plasmons and their evolution across the phase transition in a type-II Weyl Semimetal MoTe$_2$, in which both Weyl fermions and trivial nonrelativistic fermions contribute to the Fermi surface in the Td phase. One plasmon mode in the 1T' phase at high temperature and two plasmon modes in the topological T$_d$ phase at low temperature are observed. Combining with first-priciples calculations, we show that all the plasmon modes are dominated by the interband correlations between the inverted bands of MoTe$_2$. Especially in the T$_d$ phase, since the electronic bands split due to inversion symmetry breaking and spin-orbit coupling, the plasmon modes manifest the interband correlation between the topological Weyl fermions and the trivial nonrelativistic electrons. Our work emphasizes the significance of the interplay between different kinds of carriers in plasmons of topological materials.
description: 27 pages, 13 figures
Hammerschmidt, Ernst: Äthiopische Handschriften vom Tanasee 1
Creators: name: Assfalg, Julius
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 60 (1976): Oriens christianus, Band 60
Gauged maximal supergravities and hierarchies of nonabelian vector-tensor systems
Creators: name: de Wit, Bernard
name: Samtleben, Henning
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We describe generalizations of the manifestly E_{6(6)} covariant formulation of five-dimensional gauged maximal supergravity with regard to the structure of the vector and tensor fields. We indicate how the group-theoretical structures that we discover seem to play a role in gauged supergravities in various space-time dimensions.
description: 8 pages, to be published in Fortsch. Phys., proc. of the 37-th International Symposium Ahrenshoop on the Theory of Elementary Particles. Corrections in eqs. (15) and (25)
Genuine Multipartite Entanglement in Quantum Phase Transitions
Creators: name: de Oliveira, Thiago R.
name: Rigolin, Gustavo
name: de Oliveira, Marcos C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We demonstrate that the Global Entanglement (GE) measure defined by Meyer and Wallach, J. Math. Phys. 43, 4273 (2002), is maximal at the critical point for the Ising chain in a transverse magnetic field. Our analysis is based on the equivalence of GE to the averaged linear entropy, allowing the understanding of multipartite entanglement (ME) features through a generalization of GE for bipartite blocks of qubits. Moreover, in contrast to GE, the proposed ME measure can distinguish three paradigmatic entangled states: $GHZ_{N}$, $W_{N}$, and $EPR^{\otimes N/2}$. As such the generalized measure can detect genuine ME and is maximal at the critical point.
description: 4 pages, 3 figures. Replaced with final published version
FATAL FARM ACCIDENTS IN NEW YORK: ESTIMATES OF THEIR COSTS
Creators: name: Kelsey, Timothy W.
name: Kelsey, Timothy W.
Publisher: name: Unknown
Year: 1991
Subjects: Labor and Human Capital

description: A telephone survey of all of the surviving families of people killed in farm accidents in New York between 1985 and 1987 (52 of 87 families interviewed, 60% response rate) found the average total annual present value of expected income foregone because of fatal farm accidents in New York is over $8.6 million (in 1987 dollars). Less than five years after the accidents, 67% of the families who operated the farms where the accidents occurred no longer operate them and 44% no longer live on the farms.
title: Von der new gefunnde[n] Region die wol ein welt genennt mag werden; [1506]
title: Durch den Cristenlichen Künig von Portugall wunderbarlich erfunden
titleType: Subtitle
Creators: name: Vespucci, Amerigo
Publisher: name: Universitätsbibliothek der Ludwig-Maximilians-Universität München
Year: 2024

description: Kolophon: Gedruckt yn Nüremberg durch Wolffganng Hueber.
Definition of a cost-effective, fault-tolerant control architecture : application to the design of a steer-by-wire system
Creators: name: Bouvier, Mathieu Pierre
Publisher: name: University of British Columbia
Year: 2009

description: The objective of this thesis is the definition of a cost-effective fault-tolerant architecture for use in safety-critical embedded control systems. Typical practical examples of such systems are the "By-Wire" systems (e.g. Steer-by-Wire, Throttle-by-Wire, etc) which will likely be applied on-board cars and pleasure boats in the not-too-distant future. The novel architecture presented in this thesis performs error detection and error treatment at the sensor, actuator and Electronic Control Unit levels. It is based on the use of triple modular redundancy. A number of software utilities are defined, which interact with an object-oriented model of the physical system and provide redundancy management, multi-level error detection and dynamic software reconfiguration. A stateline architecture is also presented, which allows the system to dynamically isolate faulty nodes from the network and to perform the necessary hardware reconfiguration when a faulty ECU is detected. The methods developed concentrate upon the use of dynamic reconfiguration so as to ensure optimal use of the available resources and provide safe system operation in the presence of faulty components. The software architecture is coded in the ANS Forth programming language. This architecture has been implemented on a laboratory prototype system which represents a marine Steer-by-Wire application. Details of the actual implementation and of the design of the prototype are provided.
COST COMPARISONS OF ALTERNATIVE METHODS FOR PROCESSING RECYCLED WASTE NEWSPAPERS INTO FARM-ANIMAL BEDDING
Creators: name: Beierlein, James G.
name: McSweeny, William T.
name: Woodruff, Barbara A.
name: Beierlein, James G.
name: McSweeny, William T.
name: Woodruff, Barbara A.
Publisher: name: Unknown
Year: 1991
Subjects: Environmental Economics and Policy
Livestock Production/Industries

description: The United States is facing a seemingly overwhelming problem of how to dispose of its solid waste. For disposal solutions to be viable, they must be environmentally sound and economically viable. Processing waste newspapers for farm-animal bedding offers a successful partial solution that meets both criteria. Centralized newspaper chopping is found to cost less than on-farm chopping. Both chopped and unchopped waste newspapers can be economically transported considerable distances. The use of waste newspapers for animal bedding is economically attractive at the farm level and can provide a partial solution to the solid-waste disposal problem.
EVALUATION OF SELECTED FRESH VEGETABLE TERMINAL MARKETS: A STOCHASTIC DOMINANCE APPROACH
Creators: name: Hinson, Roger A.
name: Lee, John G.
name: Huh, Mooyul
name: Hinson, Roger A.
name: Lee, John G.
name: Huh, Mooyul
Publisher: name: Unknown
Year: 1990
Subjects: Crop Production/Industries

description: Vegetable production can offer a high-valued cash crop alternative. While returns may be high, vegetables are perceived to have more risk than conventional row crops. This study used stochastic dominance analysis to evaluate terminal market price risk for four vegetable crops across five market locations. Results from the analysis identify differences in efficient market selection depending on the form which price risk follows. While vegetables as a whole are considered risky, substantial differences in the type of terminal market price variability existed between the commodities.
On the Geometry of Chains
Creators: name: Cap, Andreas
name: Zadnik, Vojtech
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Complex Variables (math.CV)
subject: FOS: Mathematics
subject: 53B15, 53C15, 53D10, 32V99

description: The chains studied in this paper generalize Chern-Moser chains for CR structures. They form a distinguished family of one dimensional submanifolds in manifolds endowed with a parabolic contact structure. Both the parabolic contact structure and the system of chains can be equivalently encoded as Cartan geometries (of different types). The aim of this paper is to study the relation between these two Cartan geometries for Lagrangean contact structures and partially integrable almost CR structures. We develop a general method for extending Cartan geometries which generalizes the Cartan geometry interpretation of Fefferman's construction of a conformal structure associated to a CR structure. For the two structures in question, we show that the Cartan geometry associated to the family of chains can be obtained in that way if and only if the original parabolic contact structure is torsion free. In particular, the procedure works exactly on the subclass of (integrable) CR structures. This tight relation between the two Cartan geometries leads to an explicit description of the Cartan curvature associated to the family of chains. On the one hand, this shows that the homogeneous models for the two parabolic contact structures give rise to examples of non-flat path geometries with large automorphism groups. On the other hand, we show that one may (almost) reconstruct the underlying torsion free parabolic contact structure from the Cartan curvature associated to the chains. In particular, this leads to a very conceptual proof of the fact that chain preserving contact diffeomorphisms are either isomorphisms or anti-isomorphisms of parabolic contact structures.
description: 24 pages, improved the presentation of applications by using harmonic curvature
The Drylands Advantage: Protecting the environment, empowering people
Creators: name: Chakrabarti, Soma
name: Chakrabarti, Soma
Publisher: name: Unknown
Year: 2016
Subjects: subject: Agricultural and Food Policy
subject: climate change
subject: semi-arid area
subject: subhumid areas
subject: food security
subject: nutrition

description: What are drylands and why are they important? Present in each continent and covering over 40 per cent of the earth, drylands generally refer to arid, semi-arid and dry subhumid areas, and are home to more than 2 billion people, or one in three people in the world. Drylands are key to global food and nutrition security for the whole planet, with up to 44 per cent of the world’s cultivated systems located in drylands. Drylands also support important ecosystems ranging from rangelands and grasslands to semi-desert, and host 1.1 billion hectares of forest – more than a quarter of the world’s forest area. Rangelands support 50 per cent of the world’s livestock and are habitats for wildlife, while livestock production and croplands dominate in more arid and dry subhumid areas, respectively. Drylands, despite their relative levels of aridity, contain a great variety of biodiversity, with many animal and plant species and habitats found only in drylands and playing a vital role in the livelihoods of many dryland inhabitants (IUCN, 2012). They are also important for climate regulation: according to the Millennium Ecosystem Assessment (UN, 2005, chapter 22), total dryland soil organic and inorganic carbon reserves make up 27 per cent and 97 per cent, respectively, of the global soil organic and soil inorganic global carbon reserves.
Storage and release of electromagnetic waves using a Fabry-Perot resonator that includes an optically tunable metamirror
Creators: name: Tamayama, Yasuhiro
name: Kanari, Kengo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences

description: We evaluate the transient response of an optically tunable meta-atom composed of an electric inductor-capacitor resonator that is loaded with a piece of high-resistivity silicon and perform a proof-of-concept experiment to demonstrate the storage and release of electromagnetic waves using this meta-atom in the microwave region. The transient time of the meta-atom immediately after commencing laser light illumination of the silicon in the meta-atom is found to be inversely proportional to the incident laser power. The transmittance of the meta-atom at the resonance frequency increases to ten times that obtained without laser illumination at 5.2 ns after the start of laser illumination for a laser power of 1600 mW, a laser spot size of 2 mm $\times$ 1 mm, and a laser wavelength of 447 nm. In contrast, the transient time after turning the laser light off is dependent on the carrier lifetime of silicon and is measured to be several tens of microseconds. Based on the results of evaluation of the transient response of the meta-atom, we propose a method for the storage and release of electromagnetic waves using a Fabry-Perot resonator that includes the meta-atom as one of its mirrors. The electromagnetic wave that is stored in the Fabry-Perot resonator for a few tens of nanoseconds is then successfully released by illuminating the silicon in the meta-atom with the laser light. It is also possible to use this method in the higher frequency region because metamaterials with semiconductor elements can even be used as active metamaterials in the optical region as long as their bandgap energy is higher than the signal photon energy.
description: 10 pages, 7 figures
Analysis of finite-size effect of infinite-range Ising model under Glauber dynamics
Creators: name: Komatsu, Hisato
Publisher: name: arXiv
Year: 2021
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We consider an infinite-range Ising model under the Glauber dynamics and determine the finite-size effect on the distribution of two spin variables as a perturbation of $O \left( 1/N \right)$. Based on several considerations, ordinary differential equations are derived for describing the time development of both a two-body correlation and the autocorrelation function of magnetization. The results of the calculation fit the simulation results, unless the perturbation theory breaks down because of critical phenomena or magnetization reversal.
description: 23 pages, 2 figures
EFFECTS OF GENERIC ADVERTISING ON PERCEPTIONS AND BEHAVIOR: THE CASE OF CATFISH
Creators: name: Kinnucan, Henry W.
name: Venkateswaran, Meenakshi
name: Kinnucan, Henry W.
name: Venkateswaran, Meenakshi
Publisher: name: Unknown
Year: 1990
Subjects: subject: Marketing
subject: FOS: Economics and business

description: An eight equation partially-recursive econometric model is specified to indicate the effects of catfish advertising on product awareness, beliefs, attitude and consumption. Results indicate that the ad campaign in its first year (i) increased consumer's awareness on farm-raised catfish 15 percent, (ii) improved consumers' perceptions of and attitude toward catfish 3 to 6 percent, and (iii) increased at-home and restaurant purchases of catfish 12 to 13 percent. The response to the ad campaign is broken down into an "attitude effect" and a "reminder effect" to determine the relative behavioral importance of the affective and cognitive components of the ad copy. Model simulations suggest primacy of the reminder effect, implying the factual content of the ads had less impact on behavior than the mere presence of the ads.
Level $-1/2$ realization of quantum N-toroidal algebras in type $C_n$
Creators: name: Jing, Naihuan
name: Wang, Qianbao
name: Zhang, Honglian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Algebra (math.QA)
subject: FOS: Mathematics
subject: 17B37, 17B67

description: We construct a level $-\frac{1}{2}$ vertex representation of the quantum N-toroidal algebra for type $C_n$, which is a natural generalization of the usual quantum toroidal algebra. The construction also provides a vertex representation of the quantum toroidal algebra for type $C_n$ as a by-product.
description: 20 pages
Bounded-Lipschitz Distances on the State Space of a C*-algebra
Creators: name: Latremoliere, Frederic
Publisher: name: arXiv
Year: 2005
Subjects: subject: Operator Algebras (math.OA)
subject: FOS: Mathematics
subject: 46L89, 46L30

description: Metric noncommutative geometry, initiated by Alain Connes, has known some great recent developments under the impulsion of Rieffel and the introduction of the category of compact quantum metric spaces topologized thanks to the quantum Rieffel-Gromov-Hausdorff distance. In this paper, we undertake the first step to generalize such results and constructions to locally compact quantum metric spaces. Our present work shows how to generalize the construction of the bounded-Lipschitz metric on the state space of a C*-algebra which need not be unital, such that the topology induced by this distance on the state space is the weak* topology. In doing so we obtain some results on a state space picture of the strict topology of a C*-algebra.
description: Accepted for publication by the Tawainese Journal of Mathematics
STRUCTURE OF SOUTH CENTRAL AGRICULTURAL PRODUCTION
Creators: name: Polson, Rudolph A.
name: Shumway, C. Richard
name: Polson, Rudolph A.
name: Shumway, C. Richard
Publisher: name: Unknown
Year: 1990
Subjects: Industrial Organization

description: Using a dual economic specification of a multiproduct technology, the structure of agricultural production was tested for five South Central states (Texas, Oklahoma, Arkansas, Mississippi, and Louisiana). A comprehensive set of output supplies and input demands comprised the estimation equations in each state. Evidence of nonjoint production in a subset of commodities was detected in four of the five states. Several commodities also satisfied sufficient conditions for consistent aggregations. However, the specific outputs satisfying each structural property varied by state. Sufficient conditions for consistent geographic aggregation across the states were not satisfied. These results provide empirical guidance and important cautions for legitimately simplifying state-level model specifications of southern agricultural production.
A SOCIOECONOMIC ANALYSIS OF MARKETING INFORMATION USAGE AMONG OHIO FRUIT PRODUCERS
Creators: name: Jones, Eugene
name: Batte, Marvin T.
name: Schnitkey, Gary D.
name: Jones, Eugene
name: Batte, Marvin T.
name: Schnitkey, Gary D.
Publisher: name: Unknown
Year: 1990
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Farm producers attempt to mitigate risk and uncertainty by utilizing accurate and reliable information. This research attempts to identify sources of information used by Ohio fruit producers and then determine which of these sources are best meeting their information needs. Results are based on a logit analysis of Ohio fruit producers and several factors are shown to influence producers' evaluation of the "adequacy" of their marketing information. Among these factors are age, business size, education, type of enterprise, and types of information sources. Reported findings have implications for marketing efficiency, particularly if producers' evaluation of information as adequate is positively related to its efficient use.
Gluon and valence quark distributions for the pion and kaon in nuclear matter
Creators: name: Hutauruk, Parada T. P.
name: Nam, Seung-il
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: In this paper we study the gluon and valence quark distributions in the pion and kaon in nuclear medium for various nuclear densities as well as in vacuum within the Nambu--Jona-Lasinio (NJL) model with the help of the proper-time regularization scheme which simulates a confinement of QCD. The nuclear medium effect is also determined in the same model for the symmetric nuclear matter. We then analyze the gluon and valence quark distributions for the bound pion and kaon in symmetric nuclear matter as well as those in vacuum. We find that the valence quark and gluon distributions in vacuum have relatively good agreements with the experimental data, the lattice QCD simulations, and the JAM Monte-Carlo (MC) global fit QCD analysis. Evolving to the higher factorization scale $Q = $ 4 GeV, the in-medium gluon and valence-quark distributions of the pion for various nuclear densities are turned out to be almost unchanged in comparison to the vacuum cases. On the contrary, for the kaon, they increase significantly with respect to the densities. Finally, we find that the vacuum gluon distribution for the kaon is smaller than that for the pion, which is consistent with other theoretical predictions. This feature holds for the in-medium gluon distribution in the nuclear density up to the saturation density.
description: 10 pages, 15 figures, published version
ESTIMATING THE VALUE OF THE 0/92 REDUCED PLANTING ALTERNATIVES OF THE 1985 FARM BILL FOR FARM PROGRAM PATICIPANTS
Creators: name: Thompson, Troy N.
name: Knight, Thomas O.
name: Boren, Billy D.
name: Thompson, Troy N.
name: Knight, Thomas O.
name: Boren, Billy D.
Publisher: name: Unknown
Year: 1990
Subjects: Agricultural and Food Policy

description: The 50/92 and 0/92 reduced planting alternatives of the 1985 farm bill allow farm program participants more flexibility in making production decisions. Specifically, these provisions relax the incentive to produce inherent in earlier commodity programs that linked deficiency payments directly to harvested acreage. This study examined the value of this additional decision flexibility for crop producers in the Blacklands of Central Texas. The results suggest that the reduced planting alternatives would not be used by, and have no value for risk neutral producers, but have substantial value for risk averse producers who would reduce planted acreage in years when yield expectations are low.
ANALYSIS OF FACTORS AFFECTING COW AUCTION PRICE DIFFERENTIALS
Creators: name: Mintert, James R.
name: Blair, Joanne
name: Schroeder, Ted C.
name: Brazle, Frank
name: Mintert, James R.
name: Blair, Joanne
name: Schroeder, Ted C.
name: Brazle, Frank
Publisher: name: Unknown
Year: 1990
Subjects: Demand and Price Analysis

description: Data from Kansas cattle auctions were analyzed to estimate the impact a wide variety of physical characteristics had upon cow prices. Weight, lot size, health, pregnancy, grade, dressing percent, breed, time of sale, and market location were important factors affecting the differences in cow prices across lots on a given day. Results suggest that producers interested in maximizing the price they receive for their cows should market healthy cows in desirable lot sizes at higher dressing percentages.
HEDGING RISK FOR FEEDER CATTLE WITH A TRADITIONAL HEDGE COMPARED TO A RATIO HEDGE
Creators: name: Elam, Emmett W.
name: Davis, James
name: Elam, Emmett W.
name: Davis, James
Publisher: name: Unknown
Year: 1990
Subjects: Livestock Production/Industries

description: This paper compares hedging risk for various weights of feeder cattle hedged with a traditional cross hedge and a ratio cross hedge. A traditional hedge calls for the purchase/sale of one pound of futures for each pound of cash feeder cattle. By contrast, a ratio hedge requires estimation of a hedge ratio to determine the number of pounds of futures needed to hedge one pound of cash feeder cattle. Hedge ratios were found to be larger than 1.0 for light-weight feeder cattle. By using the estimated hedge ratios, it was shown that hedging risk could be reduced 20-50 percent compared to that achieved by using a hedge ratio of 1.0.
SIMULATING IMPACT OF PECAN STORAGE TECHNOLOGY ON FARM PRICE AND GROWERS' INCOME
Creators: name: Florkowski, Wojciech J.
name: Wu, Xi-Ling
name: Florkowski, Wojciech J.
name: Wu, Xi-Ling
Publisher: name: Unknown
Year: 1990
Subjects: Demand and Price Analysis

description: Pecan growers can increase income by storing pecans if economically feasible storage technology is available. The marginal conditions under which growers would store pecans were derived. Revenue changes due to storage and impact of storage on price variations were simulated, suggesting the price that growers could pay for new storage technology.