cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Meta-optics for spatial optical analog computing
Creators: name: Abdollahramezani, Sajjad
name: Hemmatyar, Omid
name: Adibi, Ali
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: Emerging Technologies (cs.ET)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Rapidly growing demands for high-performance computing, powerful data processing systems, and big data necessitate the advent of novel optical devices to perform demanding computing processes effectively. Due to its unprecedented growth in the past two decades, the field of meta-optics offers a viable solution for spatially, spectrally, and/or even temporally sculpting amplitude, phase, polarization, and/or dispersion of optical wavefronts. In this Review, we discuss state-of-the-art developments as well as emerging trends in computational meta-structures as disruptive platforms for spatial optical analog computation. Two fundamental approaches based on general concepts of spatial Fourier transformation and Green's function are discussed in detail. Moreover, numerical investigations and experimental demonstrations of computational optical surfaces and meta-structures for solving a diverse set of mathematical problems (e.g., integro-differentiation and convolution equations) necessary for on-demand applications (e.g., edge detection) are reviewed. Finally, we explore the current challenges and the potential resolutions in computational meta-optics followed by our perspective on future research directions and possible developments in this promising area.
TOWARD A FRAMEWORK FOR ANALYZING MULTIMARKET CONTACT AND MULTINATIONAL COMPETITION
Creators: name: Ding, John Y.
name: Ding, John Y.
Publisher: name: Unknown
Year: 1995
Subjects: International Relations/Trade

description: The possibility of noncompetitive behavior resulting from multimarket contact (i.e., mutual forbearance) has always been a source of concern among industrial organization economists and policy makers. The increasing global presence of multinational corporations has added a new dimension to the analysis of multimarket competition. Their growing influence on the world economy poses new questions about the effects of multinational competition on domestic welfare and the international competitiveness of domestic industries. Recent developments in the interface between industrial organization and international trade theories provide new research opportunities and may shed some light on the economic consequences of multinational competition and its policy implications. This paper outlines some of the major issues in the study of multinational competition and surveys recent theoretical and empirical studies of multinational and multimarket competition. It attempts to develop a conceptual framework whereby the nature of multinational competition in the food manufacturing sector can be analyzed. It is intended as a road map for on-going research.
Hurricane genesis is favorable on terrestrial exoplanets orbiting late-type M dwarf stars
Creators: name: Komacek, Thaddeus D.
name: Chavas, Daniel R.
name: Abbot, Dorian S.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Hurricanes are one of the most extreme storm systems that occur on Earth, characterized by strong rainfall and fast winds. The terrestrial exoplanets that will be characterized with future infrared space telescopes orbit M dwarf stars. As a result, the best observable terrestrial exoplanets have vastly different climates than Earth, with a large dayside-to-nightside irradiation contrast and relatively slow rotation. Hurricanes may affect future observations of terrestrial exoplanets because they enhance the vertical transport of water vapor and could influence ocean heat transport. In this work, we explore how the environment of terrestrial exoplanets orbiting M dwarf stars affects the favorability of hurricane genesis (formation). To do so, we apply metrics developed to understand hurricane genesis on Earth to three-dimensional climate models of ocean-covered exoplanets orbiting M dwarf stars. We find that hurricane genesis is most favorable on intermediate-rotating tidally locked terrestrial exoplanets with rotation periods of $\sim 8-10~\mathrm{days}$. As a result, hurricane genesis is most favorable for terrestrial exoplanets in the habitable zones of late-type M dwarf stars. The peak in the favorability of hurricane genesis at intermediate rotation occurs because sufficient spin is required for hurricane genesis, but the vertical wind shear on fast-rotating terrestrial exoplanets disrupts hurricane genesis. We find that hurricane genesis is less favorable on slowly rotating terrestrial exoplanets, which agrees with previous work. Future work using simulations that resolve hurricane genesis and evolution can test our expectations for how the environment affects the favorability of hurricane genesis on tidally locked terrestrial exoplanets.
description: Accepted at ApJ, 13 pages, 5 figures, 2 tables
G. Baldi-B. Bagatti, Saint Jean-Baptiste dans les souvenirs de sa Patrie, Jerusalem 1980
Creators: name: Kühnel, Gustav
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 68 (1984): Oriens christianus, Band 68
Effective Hamiltonian for QCD evolution at high energy
Creators: name: Hatta, Y.
name: Iancu, E.
name: McLerran, L.
name: Stasto, A.
name: Triantafyllopoulos, D. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We construct the effective Hamiltonian which governs the renormalization group flow of the gluon distribution with increasing energy and in the leading logarithmic approximation. This Hamiltonian defines a two-dimensional field theory which involves two types of Wilson lines: longitudinal Wilson lines which describe gluon recombination (or merging) and temporal Wilson lines which account for gluon bremsstrahlung (or splitting). The Hamiltonian is self-dual, i.e., it is invariant under the exchange of the two types of Wilson lines. In the high density regime where one can neglect gluon number fluctuations, the general Hamiltonian reduces to that for the JIMWLK evolution. In the dilute regime where gluon recombination becomes unimportant, it reduces to the dual partner of the JIMWLK Hamiltonian, which describes bremsstrahlung.
description: 44 pages, 3 figures. More clarifications added on the Hamiltonian structure of the effective theory
SUPERMARKET PATRONAGE: AN ANALYSIS OF CUSTOMER COUNTS AMONG OUTLETS WITHIN A GEOGRAPHIC AREA
Creators: name: Eastwood, David B.
name: Gray, Morgan D.
name: Brooker, John R.
name: Eastwood, David B.
name: Gray, Morgan D.
name: Brooker, John R.
Publisher: name: Unknown
Year: 1994
Subjects: Consumer/Household Economics

description: As new supermarket management tools are introduced, the need for an improved understanding of store patronage is growing. Weekly customer counts for five supermarkets located in a Southeastern metropolitan area covering 261 weeks are analyzed. Descriptive statistics indicate that food shopper patterns vary by outlet. Regression equations are estimated for each location. Results point to store specific relationships. They indicate that evaluation of television and radio ads and double couponing can be quite involved.
สามัคคีเภทคำฉันท์: วรรณกรรมชิ้นเอกของชิต บุรทัต
Creators: name: คำยวง วราสิทธิชัย
Publisher: name: คณะศิลปศาสตร์ มหาวิทยาลัยธรรมศาสตร์
Year: 2001
Subjects: -

description: วรรณวิทัศน์, 1, พฤศจิกายน, 5-29
Magnetic field fluctuations in anisotropic, supersonic turbulence
Creators: name: Beattie, James R.
name: Federrath, Christoph
name: Seta, Amit
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: The rich structure that we observe in molecular clouds is due to the interplay between strong magnetic fields and supersonic (turbulent) velocity fluctuations. The velocity fluctuations interact with the magnetic field, causing it too to fluctuate. Using numerical simulations, we explore the nature of such magnetic field fluctuations, $\vec{δB}$, over a wide range of turbulent Mach numbers, $\mathcal{M} = 2 - 20$ (i.e., from weak to strong compressibility), and Alfvén Mach numbers, $\mathcal{M}_{\text{A}0} = 0.1 - 100$ (i.e., from strong to weak magnetic mean fields, $B_0$). We derive a compressible quasi-static fluctuation model from the magnetohydrodynamical (MHD) equations and show that velocity gradients parallel to the mean magnetic field give rise to compressible modes in sub-Alfvénic flows, which prevents the flow from becoming two-dimensional, as is the case in incompressible MHD turbulence. We then generalise an analytical model for the magnitude of the magnetic fluctuations to include $\mathcal{M}$, and find $|\vec{δB}| = δB = c_s\sqrt{πρ_0}\mathcal{M}\mathcal{M}_{\text{A}0}$, where $c_s$ is the sound speed and $ρ_0$ is the mean density of gas. This new relation fits well in the strong $B$-field regime. We go on to study the anisotropy between the perpendicular ($ B_{\perp}$) and parallel ($ B_{\parallel}$) fluctuations and the mean-normalised fluctuations, which we find follow universal scaling relations, invariant of $\mathcal{M}$. We provide a detailed analysis of the morphology for the $δB_{\perp}$ and $δB_{\parallel}$ probability density functions and find that eddies aligned with $B_0$ cause parallel fluctuations that reduce $B_{\parallel}$ in the most anisotropic simulations. We discuss broadly the implications of our fluctuation models for magnetised gases in the interstellar medium.
description: 19 pages, 9 figures. Accepted for publication in MNRAS
Metallicity and HI Column Density Properties of Damped Lyman-$α$ Systems
Creators: name: Hou, J. L.
name: Shu, C. G.
name: Shen, S. Y.
name: Chang, R. X.
name: Chen, W. P.
name: Fu, C. Q.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Based on the disk galaxy formation theory within the framework of standard LCDM hierarchical picture, we selected modelled DLAs, according to their observational criterion, by Monte Carlo simulation with the random inclinations being considered, to examine their observed properties. By best-fitting the predicted metallicity distribution to the observed ones, we get the effective yield for DLAs about 0.25Z_sun, which is comparable to those for SMC and LMC. And the predicted distribution is the same as that of observation at the significant level higher than 60%. The predicted column density distribution of modelled DLAs is compared with the observed ones with the corresponding number density, gas content being discussed. We found that the predicted number density n(z) at redshift 3 agree well with the observed value, but the gas content Ω_DLA is about 3 times larger than observed since our model predicts more DLA systems with higher column density. It should be noted that the predicted star formation rate density contributed by DLAs is consistent with the most recent observations if the star formation timescale in DLAs is assumed to be 1 to 3 Gyr. Meanwhile, the connection between DLAs and LBGs is discussed by comparing their UV luminosity functions which shows that the DLAs host galaxies are much fainter than LBGs. We also predict that only few percent of DLAs can host LBGs which is also consistent with current observations. However, there is a discrepancy between model prediction and observation in the correlation between metallicity and HI column density for DLAs. We suggest that this could result from either the inadequacy of Schmidt-type star formation law at high redshift, the diversities of DLA populations, or the model limitations.
description: 31 pages including 7 figures, will appear in ApJ
THE POTENTIAL FOR SUPPLY MANAGEMENT OF SOUTHEASTERN SWEET ONIONS
Creators: name: Epperson, James E.
name: Huang, Wan-Tran
name: Epperson, James E.
name: Huang, Wan-Tran
Publisher: name: Unknown
Year: 1994
Subjects: Agribusiness

description: The degree of effectiveness of a marketing order limiting shipments was examined by simulating prices, shipments, and total revenue. The results suggest that a supply management marketing order would be beneficial to Southeastern sweet onion producers. These findings reinforce the importance of a marketing plan for achieving price and revenue goals over the course of a shipping season. Optimal control appears appropriate as a tool to determine intraseasonal shipment goals for a number of commodities under the umbrella of a marketing order.
AN INDUSTRY PERSPECTIVE OF ALTERNATIVE PORTS OF ENTRY FOR LATIN AMERICAN FRUIT AND VEGETABLE IMPORTS
Creators: name: Hinson, Roger A.
name: Lambert, Bruce
name: Picha, David H.
name: Hinson, Roger A.
name: Lambert, Bruce
name: Picha, David H.
Publisher: name: Unknown
Year: 1994
Subjects: International Relations/Trade

description: Trade is a venue for economic development and diversification. U.S. concerns focus on exports. However, imports of counter-seasonal produce items stimulate port activity. At ports used for these products, a marketing infrastructure develops that can be useful to the domestic produce industry. Most imported produce enters at Miami or along the Delaware River. Use of Gulf of Mexico ports could shorten transportation distance for Latin American product destined for Southern and Midwestern U.S. markets. This paper reports results of a survey designed to reveal industry perceptions of the physical and marketing infrastructure, and marketing advantages and constraints, offered by selected Gulf ports.
A Rapidly Varying Red Supergiant X-Ray Binary in the Galactic Center
Creators: name: Gottlieb, Amy M.
name: Eikenberry, Stephen S.
name: Ackley, Kendall
name: DeWitt, Curtis
name: Marco, Amparo
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We analyzed multiwavelength observations of the previously identified Galactic center X-ray binary CXO 174528.79-290942.8 (XID 6592) and determine that the near-infrared counterpart is a red supergiant based on its spectrum and luminosity. Scutum X-1 is the only previously known X-ray binary with a red supergiant donor star and closely resembles XID 6592 in terms of X-ray luminosity (L$_{\mathrm{X}}$), absolute magnitude, and IR variability (L$_{\mathrm{IR,var}}$), supporting the conclusion that XID 6592 contains a red supergiant donor star. The XID 6592 infrared counterpart shows variability of $\sim$0.5 mag in the Wide-field Infrared Survey Explorer-1 band (3.4 $μ$m) on timescales of a few hours. Other infrared data sets also show large-amplitude variability from this source at earlier epochs but do not show significant variability in recent data. We do not expect red supergiants to vary by $\sim50\%$ in luminosity over these short timescales, indicating that the variability should be powered by the compact object. However, the X-ray luminosity of this system is typically $\sim1000\times$ less than the variable luminosity in the infrared and falls below the Chandra detection limit. While X-ray reprocessing can produce large-amplitude fast infrared variability, it typically requires L$_{\mathrm{X}} >> $ L$_{\mathrm{IR,var}}$ to do so, indicating that another process must be at work. We suggest that this system may be a supergiant fast X-ray transient (SFXT), and that a large ($\sim10^{38}$ ergs s$^{-1}$), fast ($10^{2-4}$ s) X-ray flare could explain the rapid IR variability and lack of a long-lasting X-ray outburst detection. SFXTs are normally associated with blue supergiant companions, so if confirmed, XID 6592 would be the first red supergiant SFXT, as well as the second X-ray red supergiant binary.
description: 13 pages, 14 figures; published in the Astrophysical Journal
SPATIAL AND TEMPORAL LINKAGES IN U.S. POTATO PRICES
Creators: name: Cheng, Hsiang-Tai
name: Leiby, James D.
name: Marra, Michele C.
name: Cheng, Hsiang-Tai
name: Leiby, James D.
name: Marra, Michele C.
Publisher: name: Unknown
Year: 1991
Subjects: Demand and Price Analysis

description: In recent years regional weather patterns have had an unusually strong effect on potato production and prices across the country in all marketing seasons. The quantitative impact of changes in potato production in one marketing region on prices in others is not currently known. These linkages, however, are quite important for decision makers in the industry in planning marketing strategies. This study examines the relationships among prices and quantities of potatoes across regions and seasons. Own- and cross-price flexibilities are estimated using Pooled Time Series and Cross-Sectional methods for winter, spring, summer as well as eastern, central, and western fall potato production. Significant impacts of own-regional production on prices are found. Price responses to changes in own-production differ among seasons and regions, and important linkages are found as well. Of the fall producing regions, central and western production changes are found to have a dominant impact on prices in their own and other regions and seasons. Production changes in the minor seasons are found to be less important in determining prices in regions and seasons other than their own. These price flexibility results are used to estimate the impact of the 1990 increases in fall potato acreage on regional fall and subsequent seasonal prices. Although the largest percentage acreage increase and price decrease occur in the western fall region, central fall and summer prices are estimated to also experience percentage decreases in price greater than the percentage increase in western fall production.
A general resonance theory based on Mourre's inequality
Creators: name: Cattaneo, L.
name: Graf, G. M.
name: Hunziker, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences
subject: 81Q15

description: We study the perturbation of bound states embedded in the continuous spectrum which are unstable by the Fermi Golden Rule. The approach to resonance theory based on spectral deformation is extended to a more general class of quantum systems characterized by Mourre's inequality and smoothness of the resolvent. Within the framework of perturbation theory it is still possible to give a definite meaning to the notion of complex resonance energies and of corresponding metastable states. The main result is a quasi-exponential decay estimate up to a controlled error of higher order in perturbation theory.
description: 17 pages
Spectator electron effects on the two-electron one-photon radiative transition process of double K hole state of Xe$^{q+}$ ion($47\!\leq\!q\!\leq\!52$)
Creators: name: Ding, Xiaobin
name: Wu, Cunqiang
name: Zhang, Denghong
name: Zhang, Mingwu
name: Xue, Yingli
name: Yu, Deyang
name: Dong, Chenzhong
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The double electron E1 transition energies, probabilities, and oscillator strengths between the $2s2p^{n}$ and $1s^{2}2p^{n-1}$($1\!\leq\!n\leq\!6$) configurations of Xe$^{q+}$($47\!\leq\!q\leq\!52$) ions with different spectator electrons have been calculated based on the multi-configuration Dirac-Hartree-Fock method. A reasonable electron correlation model is constructed with the aid of the active space method. The finite mass of nuclear, Breit interaction and QED effects have also been included. The calculated results are in good agreement with the available data. The theoretical spectra of different spectator electrons of the double K hole state have been predicted. The spectator electron effects on the transition spectra have been analyzed in detail. The present results will be helpful for analyzing the high energy X-ray spectrum observed from the interaction between high energy highly charged ions and the surface.
The creation of a guide for students who wish to use HyperCard as a programming tool
Creators: name: Bussey, Andy
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: The creation of a guide for students who wish to use HyperCard as a programming tool
The classical capacity for the quantum Markov channel of continuous variables
Creators: name: Qin, Tao
name: Zhao, Meisheng
name: Zhang, Yongde
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum communications using continuous variables are quite mature experimental techniques and the relevant theories have been extensively investigated with various methods. In this paper, we study the continuous variable quantum channels from a different angle, i.e., by exploring master equations. And we finally give explicitly the capacity of the channel we are studying. By the end of this paper, we derive the criterion for the optimal capacities of the Gaussian channel versus its fidelity.
description: 7 pages, 3 figures, some corrections have been made, figures replotted
Detecting Reionization in the Star Formation Histories of High-Redshift Galaxies
Creators: name: Barkana, Rennan
name: Loeb, Abraham
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The reionization of cosmic hydrogen, left over from the big bang, increased its temperature to >~ 1.e4 K. This photo-heating resulted in an increase of the minimum mass of galaxies and hence a suppression of the cosmic star formation rate. The affected population of dwarf galaxies included the progenitors of massive galaxies that formed later. We show that a massive galaxy at a redshift z >~ 6 should show a double-peaked star formation history marked by a clear break. This break reflects the suppression signature from reionization of the region in which the galaxy was assembled. Since massive galaxies originate in overdense regions where cosmic evolution is accelerated, their environment reionizes earlier than the rest of the universe. For a galaxy of ~ 1.e12 M_solar in stars at a redshift of z ~ 6.5, the star formation rate should typically be suppressed at a redshift z >~ 10 since the rest of the universe is known to have reionized by z >~ 6.5. Indeed, this is inferred to be the case for HUDF-JD2, a massive galaxy which is potentially at z ~ 6.5 but is inferred to have formed the bulk of its 3.e11 M_solar in stars at z >~ 9.
description: 7 pages, 5 figures, MNRAS, revised version
Wigner function and Schroedinger equation in phase space representation
Creators: name: Chruscinski, Dariusz
name: Mlodawski, Krzysztof
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We discuss a family of quasi-distributions (s-ordered Wigner functions of Agarwal and Wolf) and its connection to the so called phase space representation of the Schroedinger equation. It turns out that although Wigner functions satisfy the Schroedinger equation in phase space they have completely different interpretation.
description: 6 pages
Vetera Christianorum 19 (1982) und 20 (1983), und : Giorgio Otranto, Esegesi biblica e storica in Giustino (Dial. 63-84), Bari 1979, und : Antonio Quacquarelli, Lavoro e ascesi nel monachesimo prebenedettino del IV e V secolo, Bari 1982
Creators: name: Davids, Adelbert
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 68 (1984): Oriens christianus, Band 68
Power estimation for field programmable gate arrays
Creators: name: Poon, Kara Ka Wing
Publisher: name: University of British Columbia
Year: 2009

description: Power dissipation is becoming a major concern for semiconductor vendors and customers. Compared to ASICs and other custom chips, Field Programmable Gate Arrays (FPGAs) have long routing tracks with significant parasitic capacitance, and dissipate a significant amount of power at high frequencies. Previous work has presented point solutions, which are applicable only to particular architectures [24] [36] [65]. Other work has proposed numerous CAD algorithms that focus primarily on reducing switching activity to achieve low power [29] [44] [57] [61] [68]. To thoroughly investigate the power consumption within FPGAs, there is a need for a universal power model capable of estimating power for a wide variety of programmable logic architectures. This thesis describes a power model that estimates the dynamic, short circuit, and leakage power for a wide variety of FPGA architectures. This power model has been integrated into the Versatile Place and Route (VPR) CAD tool, widely used software for FPGA architectural studies. This thesis also investigates the impact of various architectural parameters on the power-efficiency of FPGAs.
Additional file 1 of Investigating the impact of preselection on subsequent single-step genomic BLUP evaluation of preselected animals
Creators: name: Jibrila, Ibrahim
name: Napel, Jan Ten
name: Vandenplas, Jeremie
name: Veerkamp, Roel F.
name: Calus, Mario P. L.
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 1: QMSim parameter file. The QMSim parameter file used to simulate the data used in this study.
Nematic phase transitions in two-dimensional systems
Creators: name: Berche, Bertrand
name: Paredes, Ricardo
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Simulations of nematic-isotropic transition of liquid crystals in two dimensions are performed using an O(2) vector model characterised by non linear nearest neighbour spin interaction governed by the fourth Legendre polynomial $P\_4$. The system is studied through standard Finite-Size Scaling and conformal rescaling of density profiles or correlation functions. The low temperature limit is discussed in the spin wave approximation and confirms the numerical results, while the value of the correlation function exponent at the deconfining transition seems controversial.
description: Talk given at Statphys 2005, Lviv, Ukraine
Aurelio de Santos Otero, Die handschriftliche Überlieferung der altslavischen Apokryphen, Band II, Berlin-New York 1981
Creators: name: Davids, Adelbert
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 68 (1984): Oriens christianus, Band 68
PREFERENCES OF MID-ATLANTIC SEAFOOD BUYERS TOWARD FARM-RAISED HYBRID STRIPED BASS
Creators: name: Halbrendt, Catherine K.
name: Bacon, J. Richard
name: Wirth, Ferdinand F.
name: Halbrendt, Catherine K.
name: Bacon, J. Richard
name: Wirth, Ferdinand F.
Publisher: name: Unknown
Year: 1991
Subjects: Consumer/Household Economics

description: A market survey of three mid-Atlantic food-fish market levels was conducted to provide information on finfish buyers' market characteristics, finfish attribute preferences, and buyers' attitudes toward farm-raised hybrid striped bass. Results showed that most firms are located in the suburban areas, and they purchased their fish from producers and wholesalers. Quality was rated as the most important finfish attribute; and, aside from restaurants, buyers are generally familiar with hybrid striped bass and indicated that it could easily be substituted for wild striped bass. Most buyers were either not sure or feel hybrid striped bass could not substitute for other fish species although they all expressed a willingness to offer farm-raised hybrid striped bass. Finally, the possibility of fish farmers selling directly to all market levels has great potential if the fish size is around two to three pounds and the form is whole for the wholesaler and retailer and fillet for the restaurants.
Correlation regimes in fluctuations of fatigue crack growth
Creators: name: Scafetta, Nicola
name: Ray, Asok
name: West, Bruce J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: This paper investigates correlation properties of fluctuations in fatigue crack growth of polycrystalline materials, such as ductile alloys, that are commonly encountered in structures and machinery components of complex electromechanical systems. The model of crack damage measure indicates that the fluctuations of fatigue crack growth are characterized by strong correlation patterns within short time scales and are uncorrelated for larger time scales. The two correlation regimes suggest that the 7075-T6 aluminum alloy, analyzed in this paper, is characterized by a micro-structure which is responsible for an intermittent correlated dynamics of fatigue crack growth within a certain scale. The constitutive equations of the damage measure are built upon the physics of fracture mechanics and are substantiated by Karhunen-Loève decomposition of fatigue test data. Statistical orthogonality of the estimated damage measure and the resulting estimation error is demonstrated in a Hilbert space setting.
description: 30 pages, 8 figures, to appear in Physica A
From bulk descriptions to emergent interfaces: connecting the Ginzburg-Landau and elastic line models
Creators: name: Caballero, Nirvana
name: Agoritsas, Elisabeth
name: Lecomte, Vivien
name: Giamarchi, Thierry
Publisher: name: arXiv
Year: 2020
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Controlling interfaces is highly relevant from a technological point of view. However, their rich and complex behavior makes them very difficult to describe theoretically, and hence to predict. In this work, we establish a procedure to connect two levels of descriptions of interfaces: for a bulk description, we consider a two-dimensional Ginzburg-Landau model evolving with a Langevin equation, and boundary conditions imposing the formation of a rectilinear domain wall. At this level of description no assumptions need to be done over the interface, but analytical calculations are almost impossible to handle. On a different level of description, we consider a one-dimensional elastic line model evolving according to the Edwards-Wilkinson equation, which only allows one to study continuous and univalued interfaces, but which was up to now one of the most successful tools to treat interfaces analytically. To establish the connection between the bulk description and the interface description, we propose a simple method that applies both to clean and disordered systems. We probe the connection by numerical simulations at both levels, and our simulations, in addition to making contact with experiments, allow us to test and provide insight to develop new analytical approaches to treat interfaces.
Upper bound on the secret key rate distillable from effective quantum correlations with imperfect detectors
Creators: name: Moroder, Tobias
name: Curty, Marcos
name: Lütkenhaus, Norbert
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We provide a simple method to obtain an upper bound on the secret key rate that is particularly suited to analyze practical realizations of quantum key distribution protocols with imperfect devices. We consider the so-called trusted device scenario where Eve cannot modify the actual detection devices employed by Alice and Bob. The upper bound obtained is based on the available measurements results, but it includes the effect of the noise and losses present in the detectors of the legitimate users.
description: 9 pages, 1 figure; suppress sifting effect in the figure, final version
Design and implementation of a high-speed data logging facility for a dual DSP system
Creators: name: Yedid Barba, Erika
Publisher: name: University of British Columbia
Year: 2009

description: This thesis has two main components: implementation and system evaluation. In the implementation phase, we port an existing real-time operating system, called ORTS, from a single processor version to a multiprocessor version, and integrate a DMA mechanism for data transfers, which has never been exploited in the previous ORTS versions. Two major disadvantages of the previous ORTS versions are: its incapability to sample at frequencies higher than 1 kHz, and the large amounts of data losses the system incurs when data is transferred between the DSP board and the host. With the aim of achieving higher sampling frequencies and improving DSP-host communication performance, ORTS was ported to a dual DSP processor board called Daytona, based on Texas Instruments TMS320C67 DSP processors running at 167 MHz. The DSP processor itself supports DMA transfers within its local memory map. In this thesis, the C67 DMA has been integrated with the real-time kernel mainly to reduce the duration of system calls to write or read data buffers (in ORTS called links) for burst transfers. A DMA algorithm and a mechanism called "tracking flags", were developed to control DMA access among all processes and allow multitasking, without locking the DMA controller to any semaphore. In the evaluation phase, we first demonstrate the existence of two previously unknown problems of ORTS that were preventing periodic processes to run periodically at the defined frequency, and provide the necessary information to fix the problems. Second, we present the static analysis for bounding the WCET of data transfers for the previous ORTS version, where no DSP instruction parallelism and DMA transfers were in play. We extend the previous analysis by presenting a method for dealing with the microarchitecture of the Tl TMS320C67 processor, which integrates VLIW technology that leads to complex instruction parallelism, and a method for bounding DMA transfers.
U.S. FOOD STORE EXPERIENCE IN HANDLING CRAWFISH
Creators: name: Schupp, Alvin R.
name: Pomeroy, Robert S.
name: Dellenbarger, Lynn E.
name: Schupp, Alvin R.
name: Pomeroy, Robert S.
name: Dellenbarger, Lynn E.
Publisher: name: Unknown
Year: 1991
Subjects: Agribusiness

description: The expansion of markets for crawfish outside the South Central United States is largely dependent on obtaining the support of grocery stores. Two hundred grocery store managers in each of the nine census divisions in the United States were interviewed by telephone to characterize the store, clientele and sales of stores handling crawfish products. Stores more likely to market crawfish were members of a chain, either low or high volume operations or located in the Mountain or Pacific census divisions. Primary reasons for stores not handling crawfish were a lack of demand and perceived unfavorable consumer attitudes toward crawfish.
Additional file 5 of A comparative study on normal and obese mice indicates that the secretome of mesenchymal stromal cells is influenced by tissue environment and physiopathological conditions
Creators: name: Serife Ayaz-Guner
name: Alessio, Nicola
name: Acar, Mustafa B.
name: Aprile, Domenico
name: Özcan, Servet
name: Bernardo, Giovanni Di
name: Peluso, Gianfranco
name: Galderisi, Umberto
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Developmental Biology
subject: Hematology
subject: Computational Biology

description: Additional file 4. Reactome analysis. The report of pathway analysis of proteins present in the secretomes of vWAT-MSCs, sWAT-MSCs, and BM-MSCs isolated from samples taken from ND- and HFD-treated mice.
Additional file 1 of Students’ perceptions of the educational environment at King Abdulaziz University Faculty of Dentistry (KAUFD): a cross sectional study
Creators: name: Sabbagh, Heba J.
name: Bakhaider, Hanin A.
name: Abokhashabah, Hesham M.
name: Bader, Mohammed U.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1 Supplementary Table 1: Bonferroni correction for statistical differences between the DREEM items scores distributed according to year of graduation.
Translocation energy of ions in nano-channels of cell membranes
Creators: name: Teber, Sofian
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Translocation properties of ionic channels are investigated, on the basis of classical electrostatics, with an emphasis on asymptotic formulas for the potential and field associated with a point charge in the channel. Due to image charges in the membrane, we show that ions in an infinite length channel interact via a one-dimensional (1D) Coulomb potential. The corresponding electrostatic barrier $Σ$ is characterized by a "geometric mean" screening $Σ\propto e^2 / \sqrt{ε_w ε_m}R$ ($R$ being the radius of the pore, and $ε_m \approx 2$ and $ε_w \approx 80$ the room temperature dielectric constants of membrane and water, respectively). There exists a crossover length, $x_0 \propto R \sqrt{ε_w / ε_m} \sim 6.3 R$, below which the 1D potential governs the electrostatics and beyond which the three-dimensional (3D) Coulomb potential screened by the membrane takes over. Knowledge of this length enables us to discriminate between long channels, the length $L$ of which satisfies: $L \gg 2 x_0$, and short channels for which $L \ll 2 x_0$. The latter condition is satisfied by most realistic channels ({\it e.g.}, gramicidin A where $R \approx 3 {\mathrmÅ}$, $L \approx 2.5 {\mathrm{nm}}$ and $2x_0 \approx 3.8 {\mathrm{nm}}$) whose translocation energy is therefore controlled by the part of the self-energy, $Σ$, arising from the 1D potential. On this basis, we derive an expression for $Σ$, with no fitting parameter, which applies to a generic nano-channel of length $L$ and radius $R$.
description: 9 revTeX4 pages (in cond-mat version), 7 figures and 2 tables. Minor modifications with respect to v1 (e.g. figures added, typos corrected). Cond-mat html abstract abridged to 24 lines
How to generate the tip of branching random walks evolved to large times
Creators: name: Brunet, Éric
name: Le, Anh Dung
name: Mueller, Alfred H.
name: Munier, Stéphane
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: In a branching process, the number of particles increases exponentially with time, which makes numerical simulations for large times difficult. In many applications, however, only the region close to the extremal particles is relevant (the "tip"). We present a simple algorithm which allows to simulate a branching random walk in one dimension, keeping only the particles that arrive within some distance of the rightmost particle at a predefined time $T$. The complexity of the algorithm grows linearly with $T$. We can furthermore choose to require that the realizations have their rightmost particle arbitrarily far on the right from its typical position. We illustrate our algorithm by evaluating an observable for which no other practical method is known.
Additional file 4 of A comparative study on normal and obese mice indicates that the secretome of mesenchymal stromal cells is influenced by tissue environment and physiopathological conditions
Creators: name: Serife Ayaz-Guner
name: Alessio, Nicola
name: Acar, Mustafa B.
name: Aprile, Domenico
name: Özcan, Servet
name: Bernardo, Giovanni Di
name: Peluso, Gianfranco
name: Galderisi, Umberto
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Space Science
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Developmental Biology
subject: Hematology
subject: Computational Biology

description: Additional file 3. GO analysis carried out with PANTHER. The list shows ontology terms overrepresented in the secretomes of vWAT-MSCs, sWAT-MSCs, and BM-MSCs taken from ND- and HFD-treated mice. Ontology terms were classified as: cellular components, protein classes, molecular functions, biological processes, and pathways.
The tidal remnant of an unusually metal-poor globular cluster
Creators: name: Wan, Zhen
name: Lewis, Geraint F.
name: Li, Ting S.
name: Simpson, Jeffrey D.
name: Martell, Sarah L.
name: Zucker, Daniel B.
name: Mould, Jeremy R.
name: Erkal, Denis
name: Pace, Andrew B.
name: Mackey, Dougal
name: Ji, Alexander P.
name: Koposov, Sergey E.
name: Kuehn, Kyler
name: Shipp, Nora
name: Balbinot, Eduardo
name: Bland-Hawthorn, Joss
name: Casey, Andrew R.
name: Da Costa, Gary S.
name: Kafle, Prajwal
name: Sharma, Sanjib
name: De Silva, Gayandhi M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Globular clusters are some of the oldest bound stellar structures observed in the Universe. They are ubiquitous in large galaxies and are believed to trace intense star formation events and the hierarchical build-up of structure. Observations of globular clusters in the Milky Way, and a wide variety of other galaxies, have found evidence for a `metallicity floor', whereby no globular clusters are found with chemical (`metal') abundances below approximately 0.3 to 0.4 per cent of that of the Sun. The existence of this metallicity floor may reflect a minimum mass and a maximum redshift for surviving globular clusters to form, both critical components for understanding the build-up of mass in the universe. Here we report measurements from the Southern Stellar Streams Spectroscopic Survey of the spatially thin, dynamically cold Phoenix stellar stream in the halo of the Milky Way. The properties of the Phoenix stream are consistent with it being the tidally disrupted remains of a globular cluster. However, its metal abundance ([Fe/H] = -2.7) is substantially below that of the empirical metallicity floor. The Phoenix stream thus represents the debris of the most metal-poor globular cluster discovered so far, and its progenitor is distinct from the present-day globular cluster population in the local Universe. Its existence implies that globular clusters below the metallicity floor have probably existed, but were destroyed during Galactic evolution.
description: Authors' version of an Article published in Nature on July 29th, 2020
title: Glazed
Creators: name: Robinson, Sean Maurice
Publisher: name: University of St Andrews
Year: 2019

description: Two kinds of performance take place in these pages. There are the poems in roman script, which are given at least one page to themselves, and these are in a traditional lyric mode. There is no attempt to disguise this communication as anything other than poetry: crafted, affected, composed, musical, with affective designs on the reader. The poems in italics are usually two or more to a page. They ask the reader to take part in the pretence that they are not crafted, but are thoughts or dreams overheard. They bear some thematic relation to the lyric poems nearby, and they intend to create the impression of a mental space from which the lyric poems were written. One aim is to fictionalise the speaker. He is now not only the absent author, whose craft creates a distance between his emotion and his utterance, and therefore between him and the reader. If the reader is willing to suspend their disbelief, then the speaker becomes the character who is found muttering in italics, in between the poems proper. This may allow the reader to empathise more easily, and so be more easily moved. The italicised sections also act as milestones for the loose narrative that runs through this thesis. Early experiences of loss lead to alienation from the world as defences are built up to protect against pain. Love can break down such barriers and re-establish a connection, but this is painful and so it does not last. These poems explore the challenges we face in trying to stay connected to the world. A version of ‘Incorrigible Spring’ was submitted for assessment in the academic year 2016/17. The original can be found as an appendix.
Superconductivity-induced change in magnetic anisotropy in epitaxial ferromagnet-superconductor hybrids with spin-orbit interaction
Creators: name: González-Ruano, César
name: Johnsen, Lina G.
name: Caso, Diego
name: Tiusan, Coriolan
name: Hehn, Michel
name: Banerjee, Niladri
name: Linder, Jacob
name: Aliev, Farkhad G.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: The interaction between superconductivity and ferromagnetism in thin film superconductor/ferromagnet heterostructures is usually reflected by a change in superconductivity of the S layer set by the magnetic state of the F layers. Here we report the converse effect: transformation of the magnetocrystalline anisotropy of a single Fe(001) layer, and thus its preferred magnetization orientation, driven by the superconductivity of an underlying V layer through a spin-orbit coupled MgO interface. We attribute this to an additional contribution to the free energy of the ferromagnet arising from the controlled generation of triplet Cooper pairs, which depends on the relative angle between the exchange field of the ferromagnet and the spin-orbit field. This is fundamentally different from the commonly observed magnetic domain modification by Meissner screening or domain wall-vortex interaction and offers the ability to fundamentally tune magnetic anisotropies using superconductivity - a key step in designing future cryogenic magnetic memories.
description: Submitted for publication