cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Low-Power Object Counting with Hierarchical Neural Networks
Creators: name: Goel, Abhinav
name: Tung, Caleb
name: Aghajanzadeh, Sara
name: Ghodgaonkar, Isha
name: Ghosh, Shreya
name: Thiruvathukal, George K.
name: Lu, Yung-Hsiang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: Deep Neural Networks (DNNs) can achieve state-of-the-art accuracy in many computer vision tasks, such as object counting. Object counting takes two inputs: an image and an object query and reports the number of occurrences of the queried object. To achieve high accuracy on such tasks, DNNs require billions of operations, making them difficult to deploy on resource-constrained, low-power devices. Prior work shows that a significant number of DNN operations are redundant and can be eliminated without affecting the accuracy. To reduce these redundancies, we propose a hierarchical DNN architecture for object counting. This architecture uses a Region Proposal Network (RPN) to propose regions-of-interest (RoIs) that may contain the queried objects. A hierarchical classifier then efficiently finds the RoIs that actually contain the queried objects. The hierarchy contains groups of visually similar object categories. Small DNNs are used at each node of the hierarchy to classify between these groups. The RoIs are incrementally processed by the hierarchical classifier. If the object in an RoI is in the same group as the queried object, then the next DNN in the hierarchy processes the RoI further; otherwise, the RoI is discarded. By using a few small DNNs to process each image, this method reduces the memory requirement, inference time, energy consumption, and number of operations with negligible accuracy loss when compared with the existing object counters.
description: Paper accepted to ISLPED 2020: ACM/IEEE International Symposium on Low Power Electronics and Design
Local optical field variation in the neighborhood of a semiconductor micrograting
Creators: name: Bacsa, Wolfgang
name: Levine, Benjamin
name: Caumont, Michel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The local optical field of a semiconductor micrograting (GaAs, 10x10 micro m) is recorded in the middle field region using an optical scanning probe in collection mode at constant height. The recorded image shows the micro-grating with high contrast and a displaced diffraction image. The finite penetration depth of the light leads to a reduced edge resolution in the direction to the illuminating beam direction while the edge contrast in perpendicular direction remains high (~100nm). We use the discrete dipole model to calculate the local optical field to show how the displacement of the diffraction image increases with increasing distance from the surface.
description: 12 pages, 3 figures
Quantum tunneling induced Kondo effect in single molecular magnets
Creators: name: Romeike, C.
name: Wegewijs, M. R.
name: Hofstetter, W.
name: Schoeller, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We consider transport through a single-molecule magnet strongly coupled to metallic electrodes. We demonstrate that for half-integer spin of the molecule electron- and spin-tunneling \emph{cooperate} to produce both quantum tunneling of the magnetic moment and a Kondo effect in the linear conductance. The Kondo temperature depends sensitively on the ratio of the transverse and easy-axis anisotropies in a non-monotonic way. The magnetic symmetry of the transverse anisotropy imposes a selection rule on the total spin for the occurrence of the Kondo effect which deviates from the usual even-odd alternation.
description: 4 pages, 4 figures
Stable Grothendieck polynomials and K-theoretic factor sequences
Creators: name: Buch, Anders S.
name: Kresch, Andrew
name: Shimozono, Mark
name: Tamvakis, Harry
name: Yong, Alexander
Publisher: name: arXiv
Year: 2006
Subjects: subject: Combinatorics (math.CO)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 05E15 (Primary) 14M15, 19E08, 05E05 (Secondary)

description: We formulate a nonrecursive combinatorial rule for the expansion of the stable Grothendieck polynomials of [Fomin-Kirillov '94] in the basis of stable Grothendieck polynomials for partitions. This gives a common generalization, as well as new proofs of the rule of [Fomin-Greene '98] for the expansion of the stable Schubert polynomials into Schur polynomials, and the K-theoretic Grassmannian Littlewood-Richardson rule of [Buch '02]. The proof is based on a generalization of the Robinson-Schensted and Edelman-Greene insertion algorithms. Our results are applied to prove a number of new formulas and properties for K-theoretic quiver polynomials, and the Grothendieck polynomials of [Lascoux-Schutzenberger '82]. In particular, we provide the first $K$-theoretic analogue of the factor sequence formula of [Buch-Fulton '99] for the cohomological quiver polynomials.
description: 21 pages
Overlapping Unit Cells in 3d Quasicrystal Structure
Creators: name: Au-Yang, Helen
name: Perk, Jacques H. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: A 3-dimensional quasiperiodic lattice, with overlapping unit cells and periodic in one direction, is constructed using grid and projection methods pioneered by de Bruijn. Each unit cell consists of 26 points, of which 22 are the vertices of a convex polytope P, and 4 are interior points also shared with other neighboring unit cells. Using Kronecker's theorem the frequencies of all possible types of overlapping are found.
description: LaTeX2e, 11 pages, 5 figures (8 eps files), uses iopart.class. Final version
NET BENEFITS OF INCREASED TRADE LIBERALIZATION TO THE CANADIAN ECONOMY
Creators: name: Amanor-Boadu, Vincent
name: Hobbs, Jill E.
name: Kruja, Zana
name: Martin, Larry J.
name: Amanor-Boadu, Vincent
name: Hobbs, Jill E.
name: Kruja, Zana
name: Martin, Larry J.
Publisher: name: Unknown
Year: 1999
Subjects: International Relations/Trade

description: The Next Round of multilateral trade negotiations under the World Trade Organization is set to begin towards the end of 1999. This study was initiated to inform, substantiate and aid the development of industry and government negotiation positions for the Round. It was sponsored by Agricore, Alberta Agriculture and Food Council, Alberta Agriculture, Food and Rural Development, Alberta Intergovernmental and Aboriginal Affairs, the Alberta Sugar Beet Growers, the Canadian Dehydrators Association, the Canadian Oilseed Processors Association, and the Potato Growers of Alberta. Its overall objective was to quantify the net benefits from agricultural trade liberalization in the Next Round of the WTO. The specific objectives may be encapsulated as follows: 1. Assess the relative sizes of the supply managed and non-supply managed segments in Canada's agri-food sector with the view to understanding the implications of trade liberalization on these segments. 2. Examine the implications of trade liberalization on trade by degree of value-adding. 3. Estimate the extent and distribution of government support to agriculture in Canada on a regional basis. 4. Quantify the net benefits from elimination of tariffs and other trade barriers to the agri-food sector and the economy. 5. Evaluate the impact of emerging trade issues (e.g., food safety, genetically modified organisms and biotechnology) on Canada's agri-food industries.
Deliberative Acting, Online Planning and Learning with Hierarchical Operational Models
Creators: name: Patra, Sunandita
name: Mason, James
name: Ghallab, Malik
name: Nau, Dana
name: Traverso, Paolo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: In AI research, synthesizing a plan of action has typically used descriptive models of the actions that abstractly specify what might happen as a result of an action, and are tailored for efficiently computing state transitions. However, executing the planned actions has needed operational models, in which rich computational control structures and closed-loop online decision-making are used to specify how to perform an action in a nondeterministic execution context, react to events and adapt to an unfolding situation. Deliberative actors, which integrate acting and planning, have typically needed to use both of these models together -- which causes problems when attempting to develop the different models, verify their consistency, and smoothly interleave acting and planning. As an alternative, we define and implement an integrated acting and planning system in which both planning and acting use the same operational models. These rely on hierarchical task-oriented refinement methods offering rich control structures. The acting component, called Reactive Acting Engine (RAE), is inspired by the well-known PRS system. At each decision step, RAE can get advice from a planner for a near-optimal choice with respect to a utility function. The anytime planner uses a UCT-like Monte Carlo Tree Search procedure, called UPOM, whose rollouts are simulations of the actor's operational models. We also present learning strategies for use with RAE and UPOM that acquire, from online acting experiences and/or simulated planning results, a mapping from decision contexts to method instances as well as a heuristic function to guide UPOM. We demonstrate the asymptotic convergence of UPOM towards optimal methods in static domains, and show experimentally that UPOM and the learning strategies significantly improve the acting efficiency and robustness.
description: Published in Artificial Intelligence (AIJ). Please cite as: Sunandita Patra, James Mason, Malik Ghallab, Dana Nau, Paolo Traverso. Deliberative Acting, Planning and Learning with Hierarchical Operational Models. Artificial Intelligence, Elsevier, 2021, 299, pp.103523. 10.1016/j.artint.2021.103523. arXiv admin note: text overlap with arXiv:2003.03932
Brennecke, Ursula, Gelebte Verantwortung - ein ökumenischer Rundblick in die Frauenarbeit der Kirchen
Creators: name: Dachs, Erika
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 16 Nr. 3 (1967): Ökumenische Rundschau, Band 16, Heft 3
ONTARIO GRAPE PRODUCTION ECONOMIC IMPACT
Creators: name: Grier, Kevin
name: Martin, Larry J.
name: Stiefelmeyer, Kate
name: Grier, Kevin
name: Martin, Larry J.
name: Stiefelmeyer, Kate
Publisher: name: Unknown
Year: 2000
Subjects: Crop Production/Industries

description: This report was undertaken in order to measure the economic impacts of the grape industry on the Ontario economy and the impacts of maintaining the Wine Content Act at the 30% level. It will also provide an estimate of the benefits to grape growers and Ontario of increasing the requirements of the Wine Content Act to 75%. Specifically, the objectives are: 1. To determine the current contribution of the processing grape industry to the economy of Ontario. 2. To estimate the economic effects of alternative requirements of the Wine Content Act on grape growers. 3. To estimate the future contributions of the wine grape industry to the economy of Ontario under alternative requirements for the Wine Content Act.
Dynamic magnetization in non-Hermitian quantum spin system
Creators: name: Zhang, X. Z.
name: Jin, L.
name: Song, Z.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We report a global effect induced by the local complex field, associated with the spin-exchange interaction. High-order exceptional point up to ($N+1$)-level coalescence is created at the critical local complex field applied to the $N$-size quantum spin chain. The ($N+1$)-order coalescent level is a saturated ferromagnetic ground state in the isotropic spin system. Remarkably, the final state always approaches the ground state for an arbitrary initial state with any number of spin flips; even if the initial state is orthogonal to the ground state. Furthermore, the switch of macroscopic magnetization is solely driven by the time and forms a hysteresis loop in the time domain. The retentivity and coercivity of the hysteresis loop mainly rely on the non-Hermiticity. Our findings highlight the cooperation of non-Hermiticity and the interaction in quantum spin system, suggest a dynamical framework to realize magnetization, and thus pave the way for the non-Hermitian quantum spin system.
description: 10 pages, 4 figures
Rotational modes of oscillation of rodlike dust grains in a plasma
Creators: name: Hertzberg, M. P.
name: Vladimirov, S. V.
name: Cramer, N. F.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: Three dimensional rotatory modes of oscillations in a one-dimensional chain of rodlike charged particles or dust grains in a plasma are investigated. The dispersion characteristics of the modes are analyzed. The stability of different equilibrium orientations of the rods, phase transitions between the different equilibria, and a critical dependence on the relative strength of the confining potential are analyzed. The relations of these processes with liquid crystals, nanotubing, and plasma coating are discussed.
description: Published in August 2003; this is a late submission to the archive. 9 pages, 5 figures
Abundance Analysis of New $r$-Process-Enhanced Stars from the HESP-GOMPA Survey
Creators: name: Bandyopadhyay, Avrajit
name: Sivarani, Thirupathi
name: Beers, Timothy C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a study on the detailed chemical abundances of five new relatively bright $r$-process-enhanced stars that were initially observed as part of the SDSS/MARVELS pre-survey. These stars were selected, on the basis of their metallicities and carbon abundances, among a total of 60 stars, for high-resolution spectroscopic follow-up as part of the HESP-GOMPA survey (Hanle Echelle SPectrograph -- Galactic survey Of Metal Poor stArs). Here we discuss the three new $r$-I and two new $r$-II stars found in this survey. We have carried out a detailed abundance analysis for each of these stars, at a resolving power of $R \sim 30,000$, and compare our results to the existing literature. We could measure three of the first $r$-process-peak elements (Sr, Y and Zr) in all five stars, while Ba, Ce, Nd, Sm, Eu, and Dy could be detected among the second $r$-process-peak elements. Thorium could also be detected in one of the targets, which is found to be an actinide-boost star. We have carried out a comparative study among the sub-populations of the $r$-process-enhanced stars and other stars of the Milky Way halo population to constrain the origin of this class of objects. These bright $r$-process-enhanced stars provide an excellent opportunity to study the nucleosynthesis history of this population in great detail, and shed light on their chemical-enrichment histories.
description: 22 pages, 10 figures, 9 tables, Accepted for publication in The Astrophysical Journal
Heinrich Boll's early prose : a discourse of war-damaged bodies
Creators: name: Reimchen, Margaret Helen
Publisher: name: University of British Columbia
Year: 2009

description: Using insights drawn from research in a variety of disciplines into theories of the body, this dissertation investigates Heinrich Boll's (1917-1985) early prose (1936-1955) as a discourse of war damaged bodies. The "new" texts discussed appeared in Germany between 1982 and 1995. The thesis represents the first attempt to analyse Boll's work from the perspective of the human body. Chapter I briefly outlines the influence sociology has had for a better understanding of the role of the human body in society. This chapter demonstrates that the body can be fruitfully used both as a critical tool and as an interpretative device in discussing literary texts. An elucidation of the methodology and theoretical approach used concludes the chapter. The thesis explores Boll's use of the body not only as aspects of the narrative and also for its ethical implication. According to him, an author's temporality ("Zeitlichkeit") is the first thing to be communicated before embarking on an analysis or interpretation of his work. Chapter II investigates the "Aryan/Nazi" body and refers to other contemporary body discourses. Chapter III, investigating the "Writer's" body, provides insights into Boll's biography. Both chapters shed considerable light on Germany's cultural, social, internal, and external political situation. Chapter IV describes the soldier's 'closed,' "disciplined" body as portrayed in texts such as Das Vermachtnis. Colonel Bressen, a key character in Wo warst du, Adam?, epitomises the "mirroring" body in Chapter V. More "Schein" than "Sein," it reflects an intentionally internalised and acquired "habitus." In Chapter VI, Boll's war story "Der blasse Hund," provides a striking example of a "dominating" body which seeks to preserve its power and to control its fears through committing violent acts against its helpless victims. In contrast, however, a "communicative" body such as Kate Bogner's in Und sagte kein einziges Wort, examined in Chapter VII, is 'open' and caring. Throughout his early prose, Boll's careful use of body language reveals the multi-layered nature of reality. Chapter VIII summarises the thesis and presents its major findings upon which further critical work on the significance of the human body in Boll's later writings might be based.
Polyelectrolyte Layer-by-Layer Assembly from Self-Consistent Field Calculations
Creators: name: Wang, Qiang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We have modeled the layer-by-layer assembly process of flexible polyelectrolytes on flat surfaces. The multilayer has a three-zone structure. An exponential growth is found for the first several layers, followed by a linear growth for subsequent layers evolving towards a steady state. While adjacent layers are highly interpenetrating, stratification can be seen for every four or more layers. The effects of surface charge density, bulk salt concentration, and solvent quality on the thickness and internal structure of the multilayer are also studied. Our results agree with experimental findings.
description: 4 pages, 4 figures, submitted to PRL
Phonons, Q-dependent Kondo spin fluctuations, and 4$\textit{f}$/phonon resonance in YbAl$_3$
Creators: name: Christianson, Andrew D.
name: Fanelli, Victor R.
name: Lindsay, Lucas
name: Mu, Sai
name: Rahn, Marein C.
name: Mazzone, Daniel G.
name: Said, Ayman H.
name: Ronning, Filip
name: Bauer, Eric D.
name: Lawrence, Jon M.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The intermediate valence (IV) compound YbAl$_3$ exhibits nonintegral valence (Yb 4$f^{14-n_f}$ (5d6s)$^z$ where z = 2+n$_f$ = 2.75) in a moderately heavy (m* = 20-30me) ground state with a large Kondo temperature (T$_K$ ~ 500-600K). We have measured the magnetic fluctuations and the phonon spectra on single crystals of this material by time-of-flight inelastic neutron scattering (INS) and inelastic x-ray scattering (IXS). We find that at low temperature, the Kondo-scale spin fluctuations have a momentum (Q) dependence similar to that seen recently in the IV compound CePd$_3$ and which can be attributed to particle-hole excitations in a coherent itinerant 4$f$ correlated ground state. The Q-dependence disappears as the temperature is raised towards room temperature and the 4$f$ electron band states become increasingly incoherent. The measured phonons can be described adequately by a calculation based on standard DFT+$U$ density functional theory, without recourse to considering 4$f$ correlations dynamically. A low temperature magnetic peak observed in the neutron scattering at ~ 30meV shows dispersion identical to an optic phonon branch. This 4$f$/phonon resonance disappears for T > 150K. The phonons appear to remain unaffected by the resonance. We discuss several possibilities for the origin of this unusual excitation, including the idea that it arises from the large amplitude beating of the light Al atoms against the heavy Yb atoms, resulting in a dynamic 4$f$/3$p$ hybridization.
Secret sharing of quantum information via entanglement swapping in cavity QED
Creators: name: Zhang, Ying-Qiao
name: Jin, Xing-Ri
name: Zhang, Shou
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We proposed a scheme on secret sharing of quantum information based on entanglement swapping in cavity QED. In our scheme, the effects of cavity decay and thermal field are all eliminated.
Mass Selection Bias in Galaxy Cluster Peculiar Velocities from the Kinetic Sunyaev-Zel'dovich Effect
Creators: name: Peel, Alan C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Upcoming surveys for galaxy clusters using the Sunyaev-Zel'dovich effect are potentially sensitive enough to create a peculiar velocity catalog. The statistics of these peculiar velocities are sensitive to cosmological parameters. We develop a method to explore parameter space using N-body simulations in order to quantify dark matter halo velocity statistics which will be useful for cluster peculiar velocity observations. We show that mass selection bias from a kinetic Sunyaev-Zel'dovich velocity catalog forecasts rms peculiar velocities with a much more complicated Omega_m dependency than suggested by linear theory. In addition, we show that both two-point functions for velocities disagree with linear theory predictions out to separations of approx. 40 Mpc/h. A pedagogical appendix is included developing linear theory notation with respect to the two-point peculiar velocity functions.
description: LaTeX, 11 pages, 10 figures. Changed to match journal paper. Useful pedagogic appendix added for calculations of biased velocity two point functions
WILL MANDATORY PRICE REPORTING IMPROVE PRICING AND PRODUCTION EFFICIENCY IN AN EXPERIMENTAL MARKET FOR FED CATTLE?
Creators: name: Bastian, Christopher T.
name: Koontz, Stephen R.
name: Menkhaus, Dale J.
name: Bastian, Christopher T.
name: Koontz, Stephen R.
name: Menkhaus, Dale J.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Mandatory price reporting legislation will make available to the public on a weekly basis information on terms of trade for forward contracts. The new information will provide marketing intentions details that were previously unavailable to agents in the fed cattle market. An experiment was designed to assess the potential impacts of this new information on price discovery and production efficiency. Results suggest that the proposed new information will reduce price level, reduce price dispersion, and improve production efficiency. Prices may be reduced as information risks are reduced for both buyers and sellers in the fed cattle market. This result may not be popular among sellers in the market.
From diffuse gas to dense molecular cloud cores
Creators: name: Ballesteros-Paredes, Javier
name: André, Philippe
name: Hennebelle, Patrck
name: Klessen, Ralf S.
name: Inutsuka, Shu-ichiro
name: Kruijssen, J. M. Diederik
name: Chevance, Mélanie
name: Nakamura, Fumitaka
name: Adamo, Angela
name: Vázquez-Semadeni, Enrique
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Molecular clouds are a fundamental ingredient of galaxies: they are the channels that transform the diffuse gas into stars. The detailed process of how they do it is not completely understood. We review the current knowledge of molecular clouds and their substructure from scales $\sim~$1~kpc down to the filament and core scale. We first review the mechanisms of cloud formation from the warm diffuse interstellar medium down to the cold and dense molecular clouds, the process of molecule formation and the role of the thermal and gravitational instabilities. We also discuss the main physical mechanisms through which clouds gather their mass, and note that all of them may have a role at various stages of the process. In order to understand the dynamics of clouds we then give a critical review of the widely used virial theorem, and its relation to the measurable properties of molecular clouds. Since these properties are the tools we have for understanding the dynamical state of clouds, we critically analyse them. We finally discuss the ubiquitous filamentary structure of molecular clouds and its connection to prestellar cores and star formation.
description: 73 pages, 11 figures, preprint of a review to appear in Space Science Reviews Topical collection "Star formation". Submitted January 31st 2020; accepted May 17th 2020
Clusters and groups of galaxies in the 2dF galaxy redshift survey
Creators: name: Tago, E.
name: Einasto, J.
name: Einasto, M.
name: Saar, E.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We create a new catalogue of groups and clusters for the 2dF GRS final release sample. We show that the variable linking length friends-of-friends (FoF) algorithms used so far yield groups with sizes that grow systematically with distance from the observer, but FoF algorithms with a constant linking length are free from this fault. We apply the FoF algorithm with a constant linking length for the 2dF GRS, compare for each group its potential and kinetic energies and remove galaxies with excess random velocities. Our sample contains 7657 groups in the Northern part, and 10058 groups in the Southern part of the 2dF survey with membership Ng >= 2. We analyze selection effects of the catalogue and compare our catalogue of groups with other recently published catalogues based on the 2dF GRS. We also estimate the total luminosities of our groups, correcting for group members fainter than the observational limit of the survey. The cluster catalogues are available at our web-site (http://www.aai.ee/~maret/2dfgr.html)
description: 9 pages, 9 figures, submitted to A&A, version with high quality figures available at http://www.aai.ee/~maret/2dfgr.html
Semi-Blind Post-Equalizer SINR Estimation and Dual CSI Feedback for Radar-Cellular Coexistence
Creators: name: Rao, Raghunandan M.
name: Marojevic, Vuk
name: Reed, Jeffrey H.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Networking and Internet Architecture (cs.NI)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Current cellular systems use pilot-aided statistical-channel state information (S-CSI) estimation and limited feedback schemes to aid in link adaptation and scheduling decisions. However, in the presence of pulsed radar signals, pilot-aided S-CSI is inaccurate since interference statistics on pilot and non-pilot resources can be different. Moreover, the channel will be bimodal as a result of the periodic interference. In this paper, we propose a max-min heuristic to estimate the post-equalizer SINR in the case of non-pilot pulsed radar interference, and characterize its distribution as a function of noise variance and interference power. We observe that the proposed heuristic incurs low computational complexity, and is robust beyond a certain SINR threshold for different modulation schemes, especially for QPSK. This enables us to develop a comprehensive semi-blind framework to estimate the wideband SINR metric that is commonly used for S-CSI quantization in 3GPP Long-Term Evolution (LTE) and New Radio (NR) networks. Finally, we propose dual CSI feedback for practical radar-cellular spectrum sharing, to enable accurate CSI acquisition in the bimodal channel. We demonstrate significant improvements in throughput, block error rate and retransmission-induced latency for LTE-Advanced Pro when compared to conventional pilot-aided S-CSI estimation and limited feedback schemes.
description: 33 pages, 26 figures
Factors Affecting Hedging Decisions Using Evidence from the Cotton Industry
Creators: name: Isengildina, Olga
name: Hudson, Darren
name: Isengildina, Olga
name: Hudson, Darren
Publisher: name: Unknown
Year: 2001
Subjects: subject: Crop Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Few farmers utilize futures and options markets to price their crops despite significant educational efforts. This study seeks to analyze producer hedging behavior within the framework of the overall marketing behavior. Producer marketing behavior is modeled as a simultaneous choice between cash sales, cooperative marketing and forward contracts, and hedging. A multinomial logit model is used for empirical estimation using data from a survey administered to a sample of cotton producers from across the U.S. The most important factors that explain the use of forward pricing by cotton producers are producer preferences, farm size, use of crop insurance, risk aversion, income from government payments and off-farm income. Risk aversion, off-farm income, crop insurance and some producer perceptions are important in the choice of the form of forward pricing (direct hedging vs. cooperative marketing and forward contracts).
Entangled States Generated via Two Superconducting Quantum Interference Devices(SQUIDs) in cavity QED
Creators: name: Li, Yan
name: Zhang, Shou
name: Yeon, Kyu-Hwang
name: Um, Chung-In
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We propose a scheme for generating entangled states for two superconducting quantum interference devices in a thermal cavity with the assistance of a microwave pulse.
MANAGING DAIRY PROFIT RISK USING WEATHER DERIVATIVES
Creators: name: Chen, Gang
name: Roberts, Matthew C.
name: Thraen, Cameron S.
name: Chen, Gang
name: Roberts, Matthew C.
name: Thraen, Cameron S.
Publisher: name: Unknown
Year: 2003
Subjects: Risk and Uncertainty

description: Weather conditions are the primary dairy production risk. Hot and humid weather induces heat stress, which reduces both the quantity and quality of milk production. Traditional heat abatement technologies control the environment through ventilation, misting or evaporative cooling. Usually, they can increase the producers' expected profit, but cannot cover all the profit losses from heat stress. Weather derivatives could reduce weather-induced profit risk and thus act as a substitute for traditional abatement technologies in the aspect of risk management. We test the risk management value of weather derivatives in a utility maximization framework. The result is that weather derivatives offer an opportunity to improve the efficient portfolio frontier, and simultaneously using weather derivatives and abatement equipment is more favorable than using each of them alone.
description: Replaced with revised version of paper 05/26/04.
Kantzenbach, F.W. (Hrsg.), Oecumenica 1966
Creators: name: Weissgerber, Hans
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 16 Nr. 3 (1967): Ökumenische Rundschau, Band 16, Heft 3
COMPARING THE PERFORMANCES OF THE PARTIAL EQUILIBRIUM AND TIME-SERIES APPROACHES TO HEDGING
Creators: name: Bryant, Henry L.
name: Haigh, Michael S.
name: Bryant, Henry L.
name: Haigh, Michael S.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Marketing
subject: FOS: Economics and business

description: This research compares partial equilibrium and statistical time-series approaches to hedging. The finance literature stresses the former approach, while the applied economics literature has focused on the latter. We compare the out-of-sample hedging effectiveness of the two approaches when hedging commodity price risk using a simple derivative with a linear payoff function (a futures contract). For various methods of parameter estimation and inference, we find that the partial equilibrium models cannot out-perform the time series model. The partial equilibrium models unpalatable assumptions of deterministically evolving futures volatility seems to impede their hedging effectiveness, even when potentially foresighted option-implied volatility term structures are employed.
Torus Formation in Neutron Star Mergers and Well-Localized Short Gamma-Ray Bursts
Creators: name: Oechslin, R.
name: Janka, H. -Th.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Merging neutron stars (NSs) are hot candidates for the still enigmatic sources of short gamma-ray bursts (GRBs). If the central engines of the huge energy release are accreting relic black holes (BHs) of such mergers, it is important to understand how the properties of the BH-torus systems, in particular disc masses and mass and rotation rate of the compact remnant, are linked to the characterizing parameters of the NS binaries. For this purpose we present relativistic smoothed particle hydrodynamics simulations with conformally flat approximation of the Einstein field equations and a physical, non-zero temperature equation of state. Thick disc formation is highlighted as a dynamical process caused by angular momentum transfer through tidal torques during the merging process of asymmetric systems or in the rapidly spinning triaxial post-merger object. Our simulations support the possibility that the first well-localized short and hard GRBs 050509b, 050709, 050724, 050813 have originated from NS merger events and are powered by neutrino-antineutrino annihilation around a relic BH-torus system. Using model parameters based on this assumption, we show that the measured GRB energies and durations lead to estimates for the accreted masses and BH mass accretion rates which are compatible with theoretical expectations. In particular, the low energy output and short duration of GRB 050509b set a very strict upper limit of less than 100 ms for the time interval after the merging until the merger remnant has collapsed to a BH, leaving an accretion torus with a small mass of only about 0.01 solar masses. This favors a (nearly) symmetric NS+NS binary with a typical mass as progenitor system.
description: 12 pages, 9 figures, high-resolution color figures available on request; accepted by MNRAS
Deciphering Solar Magnetic Activity: 140 Years Of The `Extended Solar Cycle' -- Mapping the Hale Cycle
Creators: name: McIntosh, Scott W.
name: Leamon, Robert J.
name: Egeland, Ricky
name: Dikpati, Mausumi
name: Altrock, Richard C.
name: Banerjee, Dipankar
name: Chatterjee, Subhamoy
name: Srivastava, Abhishek K.
name: Velli, Marco
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: History and Philosophy of Physics (physics.hist-ph)
subject: FOS: Physical sciences

description: We investigate the occurrence of the "extended solar cycle" (ESC) as it occurs in a host observational data spanning 140 years. Investigating coronal, chromospheric, photospheric and interior diagnostics we develop a consistent picture of solar activity migration linked to the 22-year Hale (magnetic) cycle using superposed epoch analysis (SEA) using previously identified Hale cycle termination events as the key time for the SEA. Our analysis shows that the ESC and Hale cycle, as highlighted by the terminator-keyed SEA, is strongly recurrent throughout the entire observational record studied, some 140 years. Applying the same SEA method to the sunspot record confirms that Maunder's butterfly pattern is a subset of the underlying Hale cycle, strongly suggesting that the production of sunspots is not the fundamental feature of the Hale cycle, but the ESC is. The ESC (and Hale cycle) pattern highlights the importance of 55\degree\ latitude in the evolution, and possible production, of solar magnetism.
description: 29 pages, 15 figures. Movies of Fig.14 panels available on request to mscott@ucar.edu. Submitted to Solar Physics
PRICE PREMIUMS FROM A CERTIFIED FEEDER CALF PRECONDITIONING PROGRAM
Creators: name: Ward, Clement E.
name: Lalman, David L.
name: Ward, Clement E.
name: Lalman, David L.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Demand and Price Analysis
subject: Livestock Production/Industries
subject: Animal health
subject: Feeder cattle
subject: Hedonic models
subject: Marketing
subject: FOS: Economics and business
subject: Preconditioning
subject: Prices
subject: Value-added

description: Preconditioning calf programs, while not new, are becoming more prevalent. They provide benefits to cow-calf producers while adding value for feeder cattle buyers. However, questions remain regarding the marginal returns from marketing preconditioned calves exceeds the marginal costs for preconditioning. This paper reports estimates from two models to determine the premium paid by feeder cattle buyers for preconditioned calves in the Oklahoma Quality Beef Network (OQBN) program. One model assumes feeder calf characteristics are independent as most previous research. The other assumes interdependency between several characteristics that are affected by preconditioning. Data were from seven feeder calf sales in Oklahoma in 2001 and another seven sales in 2002. Estimated price premiums for OQBN certified calves from the second model were typically higher and more consisted across sales than were the price premiums from the first model.
Conceptual design of a phase shifting telescope-interferometer
Creators: name: Henault, Francois
Publisher: name: arXiv
Year: 2005
Subjects: subject: Optics (physics.optics)
subject: Astrophysics (astro-ph)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: This paper deals with the theoretical principle and optical design of a phase-shifting telescope-interferometer. What is called a "Telescope-Interferometer" (T-I) is indeed a novel, recently proposed Wavefront Error (WFE) sensing technique, whose basic idea consists in combining the main pupil of a telescope with a second, off-axis reference arm. Then a weak modulation of the Point Spread Function (PSF) is generated at the focal plane, allowing for direct phase measurements. We propose a notable improvement of the method, inspired from classical principles of phase shifting interferometry. Herein are presented the alternative principle and its achievable measurement accuracy. The technique shows high performance excepted on narrow areas located near the pupil boundary. It is applicable to both ground or space telescopes and is suitable for the co-phasing of segmented mirrors, which is of prime importance in view of future giant telescope projects.
description: 17 pages and 5 figures
TECHNICAL ANALYSIS IN COMMODITY MARKETS: RISK, RETURNS, AND VALUE
Creators: name: Roberts, Matthew C.
name: Roberts, Matthew C.
Publisher: name: Unknown
Year: 2003
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Technical Analysis
subject: Genetic Algorithms
subject: Commodity Markets
subject: Futures Markets

description: Although there is little academic research that supports the usefulness of technical analysis, its use remains widespread in commodity markets. Much prior research into technical analysis suffered from data-snooping biases. Using genetic programming, ex ante optimal technical trading strategies are identified. Because they are mechanically generated from simple arithmetic operators, they are free of the data-snooping bias common in technical analysis research. These rules are clearly capable of forecasting periods of high and low volatility, but rules generated for corn and soybeans cannot consistently generate profits in the presence of transactions costs. Rules generated for wheat futures produce profits that are weakly significant, both statistically and economically.
Antioxidant components and color characteristics of blueberries dried by different methods
Creators: name: Vaghri, Ziba
Publisher: name: University of British Columbia
Year: 2009

description: Blueberries have recently become the subject of focus for some scientists owing to their high antioxidant activity and potential health benefits beyond nutrition. The components likely to be responsible for this activity are the phenolic compounds and vitamin C. Dehydration can be successfully applied to this fruit to make it available all year round. While freeze-drying and air-drying are two conventional methods used for dehydration, vacuum microwave dehydration is a relatively new method of food dehydration, which has the potential of producing high quality novel dehydrated products. This study was designed to investigate the effects of vacuum microwave, air, freeze drying and a combination of air/vacuum microwave drying on vitamin C, anthocyanin, phenolic content and antioxidant activity of two blueberry cultivars, Bluecrop and Hardy Blue. In addition the color characteristic of the berries were assessed. Vacuum microwave dried blueberries retained higher amounts of vitamin C than the air and air/vacuum microwave dried ones. The vitamin C content of air-dried and combination treatments were too small to be detected by the method employed in this study. Total anthocyanin level of the vacuum microwave dried sample was higher (p< 0.05) than those of the air-dried and combination treatments in one of the two cultivars, and was comparable to the level of anthocyanin in the frozen berries. Vacuum microwave and freeze-dried berries had the highest concentration of phenolic compounds (p≤ 0.05). All blueberry extracts exhibited antioxidant activity, which was positively correlated with total anthocyanin, total phenolic (p< 0.05) and vitamin C content (p≥ 0.058). There was no significant difference between the antioxidant activities of various dehydrated blueberries. In Hardy Blue berries, all dehydration methods caused loss of antioxidant activity. In Bluecrop berries, some dehydration methods such as vacuum microwave drying, air/VMD, and freeze-drying were able to preserve the antioxidant activity to the level which was comparable to that of the frozen berries of that cultivar. In terms of color characteristics the puffed structure of vacuum microwave and freeze-dried berries likely influenced the Hunter lab values. In these treatments despite higher anthocyanin content, due to the distribution of the pigment over a bigger surface, they had higher Hunter L (indicating lightness), and lower Hunter a (indicating redness) and Hunter b (indicating blue color) values than the air-dried samples. No clear trends were observed between Hunter a, b, and L values, and the extent of heat and oxygen exposure. Therefore, vacuum microwave drying showed a better efficiency in retaining some bioactive components, when compared to air-drying. Vacuum microwave drying shortens the drying time considerably, and by doing so, it has a definite advantage over methods such as air-drying which has a prolonged drying time.
Monte Carlo Study of Phase Transitions in the Bond-Diluted 3D 4-State Potts Model
Creators: name: Chatelain, Christophe
name: Berche, Bertrand
name: Janke, Wolfhard
name: Berche, Pierre-Emmanuel
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Large-scale Monte Carlo simulations of the bond-diluted three-dimensional 4-state Potts model are performed. The phase diagram and the physical properties at the phase transitions are studied using finite-size scaling techniques. Evidences are given for the existence of a tricritical point dividing the phase diagram into a regime where the transitions remain of first order and a second regime where the transitions are softened to continuous ones by the influence of disorder. In the former regime, the nature of the transition is essentially clarified through an analysis of the energy probability distribution. In the latter regime critical exponents are estimated. Rare and typical events are identified and their role is qualitatively discussed in both regimes.
description: Revised version, 40 pages, 30 figures
Revisiting the Classical Method in Language Education: Grammar Translation Method (Gtm)
Creators: name: Zabitgil Gülseren, Ö.
Publisher: name: Zenodo
Year: 2019

description: Methodology is one of the most significant considerations in language education. Methodology in its simplest definition refers to a combinations of decisions about how to teach language effectively and how to organize contents of a syllabus for best learning results. The Classical Method, Grammar Translation Method (GTM) constitutes a backdrop against the consideration for the evolving of language learning.
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