cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
How positively do they talk? : an investigation on how self-promotion motive induces consumers to give positive word-of-mouth
Creators: name: Chung, Cindy Mann Yien
Publisher: name: University of British Columbia
Year: 2009

description: This dissertation examines how product self-relatedness may induce positive word-of-mouth (WOM) behaviour. The main prediction was that product self-relatedness would increase the total amount of WOM, and cause consumers to exaggerate their opinions about products they liked. Three studies were conducted to test various hypotheses that related to the main prediction. A pilot study obtained initial evidence that products that reflected consumer self-concept led to more willingness to give WOM, and also more positively valenced WOM. Ownership and expectation of social evaluation on WOM opinion were found to interact with product self-relevance in influencing WOM valence. Using a new methodology, Study 1 replicated the finding in the pilot study that self-relatedness led to more WOM in total. However, WOM seemed more objective in this case, since subjects gave both more positive and more negative product evaluations when products reflected self-concept. Study 2 better established causality between self-relatedness and WOM behaviour. Subjects gave more WOM when they expected social evaluation. This study also demonstrated a positive self-presentational bias in WOM. Given that the subjects liked the product under evaluation, WOM was more positively valenced when advertising copy linked the product to the self than when it did not, or when subjects expected judgement by others than when they did not. Subjects seemed to exaggerate their preferences for the product when giving WOM in service of self-presentational goals.
The cost-benefit analysis of the improvement of water quality of the Paldang reservoir in Korea
Creators: name: Cho, Yongsung
name: Kim, Hong Jin
name: Cho, Yongsung
name: Kim, Hong Jin
Publisher: name: Unknown
Year: 2004
Subjects: Resource /Energy Economics and Policy

description: This study estimated monetary value of water quality improvement from 3rd class to 1st class in the Paldang reservoir using the contingent valuation method (CVM) to measure individuals' willingness to pay (WTP) of questionnaire respondents for improving the water quality of the Paldang reservoir and analyzed what factors influence their WTPs. This study also measured compliance costs of proposed regulations to the polluting sources. The estimated individual WTP was used to calculate the total WTP of the community affected, and then it was compared with the compliance costs of proposed regulations to the polluting sources.
INTEGRAL/IBIS search for e-e+ annihilation radiation from the Galactic Center Region
Creators: name: De Cesare, G.
name: Bazzano, A.
name: Capitanio, F.
name: Del Santo, M.
name: Lonjou, V.
name: Natalucci, L.
name: Ubertini, P.
name: Von Ballmoos, P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Electron-positron annihilation radiation from the Galactic Center region has been detected since the seventies, but its astrophysical origin is still a topic of a scientific debate. We have analyzed data of the gamma-ray imager IBIS/ISGRI onboard of ESA's INTEGRAL platform in the e$^{-}$e$^{+}$ line. During the first year of the missions Galactic Center Deep Exposure no evidence for point sources at 511 keV has been found in the ISGRI data; the $2 σ$ upper limit for resolved single point sources is estimated to be $1.6\times 10^{-4} ph cm^{-2} s^{-1}$.
description: 6 pages, 3 figures; Cospar 2004. To be published in: Advances in Space Research
Quantum deformation of the Dirac bracket
Creators: name: Krivoruchenko, M. I.
name: Raduta, A. A.
name: Faessler, Amand
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Mathematical Physics (math-ph)
subject: Dynamical Systems (math.DS)
subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: The quantum deformation of the Poisson bracket is the Moyal bracket. We construct quantum deformation of the Dirac bracket for systems which admit global symplectic basis for constraint functions. Equivalently, it can be considered as an extension of the Moyal bracket to second-class constraints systems and to gauge-invariant systems which become second class when gauge-fixing conditions are imposed.
description: 18 pages, REVTeX
Supplementary Materials: Supplementary Methods, Results, Discussion, and Figures from Uncovering the mosaic evolution of the carnivoran skeletal system
Creators: name: Law, Chris J.
name: Hlusko, Leslea J.
name: Tseng, Z. Jack
Publisher: name: The Royal Society
Year: 2024
Subjects: classificationCode: 310499
subject: Evolutionary biology not elsewhere classified

description: The diversity of vertebrate skeletons is often attributed to adaptations to distinct ecological factors such as diet, locomotion, and sensory environment. Although the adaptive evolution of skull, appendicular skeleton, and vertebral column is well studied in vertebrates, comprehensive investigations of all skeletal components simultaneously are rarely performed. Consequently, we know little of how modes of evolution differ among skeletal components. Here, we tested if ecological and phylogenetic effects led to distinct modes of evolution among the cranial, appendicular and vertebral regions in extant carnivoran skeletons. Using multivariate evolutionary models, we found mosaic evolution in which only the mandible, hindlimb and posterior (i.e. last thoracic and lumbar) vertebrae showed evidence of adaptation towards ecological regimes whereas the remaining skeletal components reflect clade-specific evolutionary shifts. We hypothesize that the decoupled evolution of individual skeletal components may have led to the origination of distinct adaptive zones and morphologies among extant carnivoran families that reflect phylogenetic hierarchies. Overall, our work highlights the importance of examining multiple skeletal components simultaneously in ecomorphological analyses. Ongoing work integrating the fossil and paleoenvironmental record will further clarify deep-time drivers that govern carnivoran diversity we see today and reveal the complexity of evolutionary processes in multicomponent systems.
A Catalog of Holes and Shells in the Interstellar Medium of the LITTLE THINGS Dwarf Galaxies
Creators: name: Pokhrel, Nau Raj
name: Simpson, Caroline E.
name: Bagetakos, Ioannis
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We present a catalog of holes and shells in the neutral atomic hydrogen (\HI) of 41 gas-rich dwarf galaxies in LITTLE THINGS (Local Irregulars That Trace Luminosity Extremes, The \HI Nearby Galaxy Survey). We analyzed their properties as part of an investigation into the relation between star formation and structures and kinematics in the \HI of small galaxies. We confirmed 306 holes between 38 pc (our resolution limit) and 2.3 kpc, with expansion velocities up to 30 \kms. The global star formation rates measured by \Ha and FUV emission are consistent with those estimated from the energy required to create the cataloged holes in our sample. Although we found no obvious correlation between global star-formation rates and the \HI surface and volume porosities of our sample, two of the four lowest porosity galaxies and the two highest porosity galaxies have no recent star formation as measured by \Ha and FUV emission.
description: 17 figures, 41 tables
THE DYNAMICS OF LAND-COVER CHANGE IN WESTERN HONDURAS: SPATIAL AUTOCORRELATION AND TEMPORAL VARIATION
Creators: name: Munroe, Darla K.
name: Southworth, Jane
name: Tucker, Catherine M.
name: Munroe, Darla K.
name: Southworth, Jane
name: Tucker, Catherine M.
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use

description: This paper presents an econometric analysis of land-cover change in western Honduras. Ground-truthed satellite image analysis indicates that between 1987 and 1996, net reforestation occurred in the 1,015.12 km2 study region. While some reforestation can be attributed to a 1987 ban on logging, the area of reforestation greatly exceeds that of previously clear-cut areas. Further, new area was also deforested between 1987-1996. Thus, the observed land-cover changes most likely represent a complex mosaic of changing land-use patterns across time and space. We estimate a random-effects probit model to capture drivers of land-cover change that are spatial, temporal or both. We employ two techniques to correct for spatial error dependence in econometric analysis suitable to qualitative dependent variables. Lastly, we simulate the impact of anticipated changes in transportation costs on land cover. We find that market accessibility, increase in national coffee prices, and agricultural suitability are the most important determinants of recent land-cover change.
USING RIGHTS OF FIRST REFUSAL FOR FARMLAND RETENTION
Creators: name: Duke, Joshua M.
name: Malcolm, Scott A.
name: MacKenzie, John
name: Duke, Joshua M.
name: Malcolm, Scott A.
name: MacKenzie, John
Publisher: name: Unknown
Year: 2001
Subjects: Land Economics/Use

description: How can rights of first refusal protect prime agricultural land? This paper develops a theory for valuing rights of first refusal based on compensation for foreclosing future demand, information asymmetry, and advance purchase of market share. A procedure is developed for governments to use these rights to prevent conversion.
Jacobi Geometry and Hamiltonian Mechanics: the Unit-Free Approach
Creators: name: Zapata-Carratala, Carlos
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We present a systematic treatment of line bundle geometry and Jacobi manifolds with an application to geometric mechanics that has not been noted in the literature. We precisely identify categories that generalise the ordinary categories of smooth manifolds and vector bundles to account for a lack of choice of a preferred unit, which in standard differential geometry is always given by the global constant function $1$. This is what we call the `unit-free' approach. After giving a characterisation of local Lie brackets via their symbol maps we apply our novel categorical language to review Jacobi manifolds and related notions such as Lichnerowicz brackets and Jacobi algebroids. The main advantage of our approach is that Jacobi geometry is recovered as the direct unit-free generalisation of Poisson geometry, with all the familiar notions translating in a straightforward manner. We then apply this formalism to the question of whether there is a unit-free generalisation of Hamiltonian mechanics. We identify the basic categorical structure of ordinary Hamiltonian mechanics to argue that it is indeed possible to find a unit-free analogue. This work serves as a prelude to the investigation of dimensioned structures, an attempt at a general mathematical framework for the formal treatment of physical quantities and dimensional analysis.
BeppoSAX view of radio-loud Active Galactic Nuclei
Creators: name: Grandi, Paola
name: Malaguti, Giuseppe
name: Fiocchi, Mariateresa
name: --
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A systematic analysis of a large sample of radio-loud Active Galactic Nuclei available in the BeppoSAX public archive has been performed. The sample includes 3 Narrow Line Radio Galaxies (NLRG), 10 Broad Line Radio Galaxies (BLRG), 6 Steep Spectrum Radio Quasars (SSRQ), and 16 Flat Spectrum Radio Quasars (FSRQ). According to the unified models, these classes correspond to objects with increasing viewing angles. As expected, the presence of a non-thermal beamed component emerges clearly in FSRQ. This class shows in fact a featureless continuum (with the exception of 3C273), and a significantly flatter average spectral slope. On the contrary, traces of a non-thermal Doppler enhanced radiation are elusive in the other classes. We find that the iron line equivalent widths (EW) are generally weaker in radio- loud AGN than in Seyfert 1 galaxies, and confirm the presence of an X-ray Baldwin effect, i.e. a decrease of EW with the 2--10 keV luminosity (L) from Seyferts to BLRG and quasars. Since the EW--L anti-correlation is present also in radio-quiet AGN alone, this effect cannot be ascribed entirely to a strongly beamed jet component. Possible alternative interpretations are explored.
description: ApJ accepted, 33 pages, 6 figures
Equivalence classes of coherent projectors in a Hilbert space with prime dimension: Q functions and their Gini index
Creators: name: Vourdas, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Coherent subspaces spanned by a finite number of coherent states are introduced, in a quantum system with Hilbert space that has odd prime dimension $d$. The set of all coherent subspaces is partitioned into equivalence classes, with $d^2$ subspaces in each class.The corresponding coherent projectors within an equivalence class, have the `closure under displacements property' and also resolve the identity. Different equivalence classes provide different granularisation of the Hilbert space, and they form a partial order `coarser' (and `finer'). In the case of a two-dimensional coherent subspace spanned by two coherent states, the corresponding projector (of rank $2$) is different than the sum of the two projectors to the subspaces related to each of the two coherent states. We quantify this with `non-addditivity operators' which are a measure of quantum interference in phase space, and also of the non-commutativity of the projectors. Generalized $Q$ and $P$ functions of density matrices, which are based on coherent projectors in a given equivalence class, are introduced. Analogues of the Lorenz values and the Gini index (which are popular quantities in Mathematical Economics) are used here to quantify the inequality in the distribution of the $Q$ function of a quantum state, within the granular structure of the Hilbert space....
Decision Sequence in the Nested-Logit Model of Recreation Choice: An Application to Oregon Marine Sport Fishing (DRAFT)
Creators: name: Shaikh, Sabina L.
name: Larson, Douglas M.
name: Shaikh, Sabina L.
name: Larson, Douglas M.
Publisher: name: Unknown
Year: 2001
Subjects: Resource /Energy Economics and Policy

description: The varying researcher assumptions about model specification in nested-logit random utility models can have significant effects on model estimates and corresponding welfare measures. Using a three-level nested-logit model of Oregon marine sport fishing, we estimate and compare several models with varying assumptions of choice sequence and income effects.
ARE ASSESSMENTS FOR GENERIC ADVERTISING OPTIMAL IF PRODUCTS ARE DIFFERENTIATED?
Creators: name: Crespi, John M.
name: Marette, Stephan
name: Crespi, John M.
name: Marette, Stephan
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business

description: An analytical framework where consumers display preferences for various qualities of an agricultural commodity is used to investigate the producer welfare effects of generic advertising assessments. Depending upon the degree of product differentiation present in the final goods, some producers are shown to benefit more than others from the use of an equivalent assessment on all producers. This paper delineates those cases where producer assessments should be equal and where assessments should be different to insure an equitable benefit.
Supervised Adaptation of Sequence-to-Sequence Speech Recognition Systems using Batch-Weighting
Creators: name: Huber, Christian
name: Nguyen, Tuan-Nam
name: Song, Kaihang
name: Stüker, Sebastian
name: Hussain, Juan
name: Waibel, Alexander
Publisher: name: Association for Computational Linguistics (ACL)
Year: 2020

description: When training speech recognition systems, one often faces the situation that sufficient amounts of training data for the language in question are available but only small amounts of data for the domain in question. This problem is even bigger for end-to-end speech recognition systems that only accept transcribed speech as training data, which is harder and more expensive to obtain than text data. In this paper we present experiments in adapting end-to-end speech recognition systems by a method which is called batch-weighting and which we contrast against regular fine-tuning, i.e., to continue to train existing neural speech recognition models on adaptation data. We perform experiments using theses techniques in adapting to topic, accent and vocabulary, showing that batch-weighting consistently outperforms fine-tuning. In order to show the generalization capabilities of batch-weighting we perform experiments in several languages, i.e., Arabic, English and German. Due to its relatively small computational requirements batch-weighting is a suitable technique for supervised life-long learning during the life-time of a speech recognition system, e.g., from user corrections.
A PRINCIPAL-AGENT APPROACH TO THE DELEGATION OF REGULATORY AUTHORITY
Creators: name: Alevy, Jonathan E.
name: Alevy, Jonathan E.
Publisher: name: Unknown
Year: 2001
Subjects: Political Economy

description: This paper applies a multi-tasking model of moral hazard to study the delegation of regulatory authority for health and environmental risks. The model characterizes the conditions under which single and multiple bureaucratic agencies are optimal, and relates these findings to discussions of appropriate regulation of agricultural biotechnology
Exact coherent states of a harmonically confined Tonks-Girardeau gas
Creators: name: Minguzzi, A.
name: Gangardt, D. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: Using a scaling transformation we exactly determine the dynamics of an harmonically confined Tonks-Girardeau gas under arbitrary time variations of the trap frequency. We show how during a one-dimensional expansion a ``dynamical fermionization'' occurs as the momentum distribution rapidly approaches an ideal Fermi gas distribution, and that under a sudden change of the trap frequency the gas undergoes undamped breathing oscillations displaying alternating bosonic and fermionic character in momentum space. The absence of damping in the oscillations is a peculiarity of the truly Tonks regime.
description: 4 pages, 2 figures, published version
A DYNAMIC RESPONSE ANALYSIS FOR THE U.S. ROUGH RICE MARKET
Creators: name: No, Sung Chul
name: Zapata, Hector O.
name: No, Sung Chul
name: Zapata, Hector O.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business

description: This study provides a comparative evaluation of VARs versus structural VARs for policy analysis and simulation via impulse response analysis (IRA). The IRA is valuable information for rice market participants as these results provide an economically intuitive explanation of adjustments that occur as a result of shocks to the market.
Dynamical aspects of the plane-wave matrix model at finite temperature
Creators: name: Kawahara, Naoyuki
name: Nishimura, Jun
name: Yoshida, Kentaroh
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study dynamical aspects of the plane-wave matrix model at finite temperature. One-loop calculation around general classical vacua is performed using the background field method, and the integration over the gauge field moduli is carried out both analytically and numerically. In addition to the trivial vacuum, which corresponds to a single M5-brane at zero temperature, we consider general static fuzzy-sphere type configurations. They are all 1/2 BPS, and hence degenerate at zero temperature due to supersymmetry. This degeneracy is resolved, however, at finite temperature, and we identify the configuration that gives the smallest free energy at each temperature. The Hagedorn transition in each vacuum is studied by using the eigenvalue density method for the gauge field moduli, and the free energy as well as the Polyakov line is obtained analytically near the critical point. This reveals the existence of fuzzy sphere phases, which may correspond to the plasma-ball phases in N=4 SU(\infty) SYM on S^1 X S^3. We also perform Monte Carlo simulation to integrate over the gauge field moduli. While this confirms the validity of the analytic results near the critical point, it also shows that the trivial vacuum gives the smallest free energy throughout the high temperature regime.
description: 23 pages, 7 figures, LaTeX, JHEP3.cls
Transcription regulation of human gonadotropin-releasing hormone receptor gene expression
Creators: name: Cheng, Kwai Wa
Publisher: name: University of British Columbia
Year: 2009

description: Human placental GnRHR cDNA isolated from human choriocarcinoma JEG-3 cells, immortalized human extravillous trophoblasts (IEVT) and primary culture of cytotrophoblasts was identical to the pituitary counterpart. In addition, placental GnRHR wasshown coupling to both the protein kinase C (PKC) and protein kinase A (PKA) signaling transduction pathways. Interestingly, homologous down-regulation of GnRHR mRNA level was not observed in placental cells as in pituitary cells, suggesting that a different regulatory mechanism may exist in controlling the expression of this gene in these two tissues. UsingJEG-3 and IEVT cells as models, an upstream promoter was shown to confer the placental cell-specific expression of hGnRHR gene both in vitro and in vivo. Four putative transcription factor binding sites, namely hGR-Oct-1, hGR-CRE, hGR-GATA and hGR-AP-1, were located and confirmed to be essential for the placental expression of this gene. Importantly, hGR-CRE and hGR-GATA motifs were subsequently found to be placenta specific. A differential regulation of human GnRHR promoter activity by progesterone (P) in the pituitary and placenta was observed. P treatment decreased the promoter activity at the level of pituitary. In contrast, P stimulated the expression of this gene in the placenta. A progesterone response element, namely hGR-PRE, mediated the P-action. Interestingly, human progesterone receptor (PR)-B exhibits a cell-dependent transcriptional activity, such that it functions as a transcription activator in the placenta but a transcription repressor in the pituitary. In contrast, human PR-A acts as a transcription repressor in both tissues. The increase in hGnRHR promoter activity after cAMP/PKA pathway activation by either pharmacological agents or by PACAP and hCG in the pituitary and placenta, respectively, implies that any hormones, which activate cAMP/PKA pathway, may increase the hGnRHR gene transcription. Two elements, namely hGR-AP/CRE-1 and -2, were subsequently demonstrated to be responsible for mediating this stimulatory effect. The comparison studies on the transcriptional regulation of hGnRHR gene by P and cAMP/PKA pathway at the level of the pituitary and placenta implicate that the regulation of hGnRHR gene transcription is constantly under fine-tuning by a complex regulatory mechanism through the availability of different transcription factors and the activation of multiple signal transduction pathways.
FINANCIAL IMPACTS OF ALTERNATIVE PHOSPHORUS MANAGEMENT PRACTICES: THE CASE OF VERMONT DAIRY FARMS
Creators: name: Zhang, Wei
name: Parsons, Robert L.
name: Zhang, Wei
name: Parsons, Robert L.
Publisher: name: Unknown
Year: 2001
Subjects: Livestock Production/Industries

description: The Farm Level Income and Policy Simulation Modeling System (FLIPSim) is used to provide policymakers and dairy farmers estimated farm financial impact on the implementation of five field related Best Management Practices (BMP) designed to reduce phosphorus loading in Lake Champlain. Financial performance indicators are derived from deterministic and stochastic FLIPSim analyses for three Vermont dairy farms (60, 150, and 350 cows). Results indicate that residual management and conservation cropping incur the greatest financial impacts. Nutrient management increases income for the large and medium farms. None of the BMP's caused the farms to go out of business. However, the initial declining financial position of the small farm was hastened by the implementation of all BMP's except the row crop field buffer.
Determinants of Population Change in Regional Economies: A Study of the Colorado Front Range
Creators: name: Scorsone, Eric
name: Thilmany, Dawn D.
name: Davies, Stephen P.
name: Scorsone, Eric
name: Thilmany, Dawn D.
name: Davies, Stephen P.
Publisher: name: Unknown
Year: 2001
Subjects: Community/Rural/Urban Development

description: Households and businesses are distributed across regional economies based on a number of factors including location-specific natural and fiscal amenities and local and regional employment conditions. Very different hypotheses are proposed in past research to explain the determinants of this spatial distribution. In particular, it is argued that households must weigh the benefits of potential amenities against the costs of employment losses, lower wages or higher housing prices. The relative strength of these two categories determines the potential for government intervention in the market. This research project analyzes this issue in the specific case of the Denver labor market area. This region has experienced large swings in economic activity over the past decade, but more recently, has been one of the fastest growing metropolitan areas in the United States. As growth occurs, the role of fiscal amenities in this process needs to be understood since governments may inhibit, promote or have no effect on regional population and employment growth.
The adiabatic evolution of orbital parameters in the Kerr spacetime
Creators: name: Sago, Norichika
name: Tanaka, Takahiro
name: Hikida, Wataru
name: Ganz, Katsuhiko
name: Nakano, Hiroyuki
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the adiabatic orbital evolution of a point particle in the Kerr spacetime due to the emission of gravitational waves. In the case that the timescale of the orbital evolution is enough smaller than the typical timescale of orbits, the evolution of orbits is characterized by the change rates of three constants of motion, the energy $E$, the azimuthal angular momentum $L$, and the Carter constant $Q$. For $E$ and $L$, we can evaluate their change rates from the fluxes of the energy and the angular momentum at infinity and on the event horizon according to the balance argument. On the other hand, for the Carter constant, we cannot use the balance argument because we do not know the conserved current associated with it. %and the corresponding conservation law. Recently, Mino proposed a new method of evaluating the averaged change rate of the Carter constant by using the radiative field. In our previous paper we developed a simplified scheme for practical evaluation of the evolution of the Carter constant based on the Mino's proposal. In this paper we describe our scheme in more detail, and derive explicit analytic formulae for the change rates of the energy, the angular momentum and the Carter constant.
description: 34 pages, no figure
HEALTH, FOOD SAFETY AND MEAT DEMAND
Creators: name: Flake, Oliver L.
name: Patterson, Paul M.
name: Flake, Oliver L.
name: Patterson, Paul M.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: Livestock Production/Industries
subject: meat demand
subject: health
subject: food safety
subject: LA/AIDS

description: For nearly two decades, the U.S. beef industry has faced a long term structural change, which has resulted in consumers shifting from beef to chicken. This shift has occurred due to consumer concerns on cholesterol consumption. More recently, this industry has confronted new challenges on the safety of beef, due to the potential presence of biological contaminants. This study incorporates a measure on food safety with a measure on health information in a meat demand system. Beef safety information is found to have a modest impact on beef demand, but is dominated by health information.
COMPETITIVENESS IN THE WORLD SUGAR INDUSTRY: A COMPARISON OF THE EU AND U.S. SUGAR SECTORS
Creators: name: Kennedy, P. Lynn
name: Harrison, R. Wes
name: Kennedy, P. Lynn
name: Harrison, R. Wes
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: International Relations/Trade
subject: Competitiveness
subject: Sugar
subject: EU
subject: U.S.

description: The EU and U.S. have historically been insulated from volatilities in the world sugar market. This paper reviews changes in WTO and regional trade agreements and interactions with domestic policies. A framework is developed to analyze the competitive positions of these sugar industries given world sugar policy reforms.
Covariant many-fingered time Bohmian interpretation of quantum field theory
Creators: name: Nikolic, H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The Bohmian interpretation of the many-fingered time (MFT) Tomonaga-Schwinger formulation of quantum field theory (QFT) describes MFT fields, which provides a covariant Bohmian interpretation of QFT without introducing a preferred foliation of spacetime.
description: 7 pages, significantly revised
SUBSIDIZED FERTILIZER IN THE SAHEL: THAT IS THE QUESTION
Creators: name: Wyatt, T.J.
name: Samake, Odiaba
name: Tiendrebeogo, Jean-Pierre
name: Wyatt, T.J.
name: Samake, Odiaba
name: Tiendrebeogo, Jean-Pierre
Publisher: name: Unknown
Year: 1999
Subjects: Agricultural and Food Policy
Land Economics/Use

description: Nutrient depletion concerns researchers and policy makers in the Sahel. A village-level programming model determines the size of fertilizer subsidy necessary to encourage farmers to apply the recommended dosage to their millet fields. Results indicate that subsidies would be extremely costly and less than half the expenditures accrue to the farm-household.
LEARNING AND TECHNOLOGY SPILLOVER: PRODUCTIVITY CONVERGENCE IN NORWEGIAN SALMON AQUACULTURE
Creators: name: Tveteras, Ragnar
name: Tveteras, Ragnar
Publisher: name: Unknown
Year: 1999
Subjects: subject: Production Economics
subject: Research Methods/ Statistical Methods
subject: production economics

description: An econometric analysis of productivity convergence in Norwegian salmon aquaculture is undertaken. We also test for the effects of learning and external industry infrastructure capital. Empirical evidence for reduction in productivity differentials is found, but the estimated models also provide indications of more permanent differences in productivity and their underlying sources.
DEALING WITH HEALTH CONCERNS IN NATURAL RESOURCE DAMAGE ASSESSMENT
Creators: name: Hite, Diane
name: Hoehn, John P.
name: Randall, Alan
name: Hite, Diane
name: Hoehn, John P.
name: Randall, Alan
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: Health Economics and Policy
subject: Research Methods/ Statistical Methods
subject: contingent valuation
subject: environmental economics
subject: research methods
subject: econometrics
subject: statistics

description: We employ a combination of survey design and econometric techniques to explore ways to deal with health concerns in restoration projects where environmental injuries are severe. We use data from a referendum contingent valuation survey for a natural resource restoration project to demonstrate the extent to which health concerns can be controlled.
Guidance for planning and conducting confirmatory preclinical studies and systematic reviews
Creators: name: Drude, Natascha Ingrid
name: Carneiro, Clarissa F. D.
name: Collazo, Anja
name: Danziger, Meggie
name: Toelch, Ulf
Publisher: name: Zenodo
Year: 2022

description: This document provides guidance on multicenter confirmatory preclinical studies and systematic
 reviews. It is based on a review of the literature and interaction with the projects currently funded
 under the call “Confirmatory preclinical studies – quality in health research” by the German Federal
 Ministry of Education and Research (BMBF).
 The information herein was compiled by the DECIDE project conducted at the BIH QUEST Center for
 Responsible Research. DECIDE investigates confirmatory studies as well as systematic reviews and
 develops best practices together with the above mentioned BMBF-funded groups and other
 stakeholders and experts.
 This document represents the current research status and should be seen as a guide that covers
 main issues but may require adoption to specific cases.
Star products and branes in Poisson-Sigma models
Creators: name: Calvo, Ivan
name: Falceto, Fernando
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: We prove that non-coisotropic branes in the Poisson-Sigma model are allowed at the quantum level. When the brane is defined by second-class constraints, the perturbative quantization of the model yields the Kontsevich's star product associated to the Dirac bracket on the brane. We also discuss the quantization when both first and second-class constraints are present.
description: 18 pages; Final version to appear in Commun. Math. Phys
Evidence for strong electronic correlations in the spectra of Sr$_2$RuO$_4$
Creators: name: Pchelkina, Z. V.
name: Nekrasov, I. A.
name: Pruschke, Th.
name: Sekiyama, A.
name: Suga, S.
name: Anisimov, V. I.
name: Vollhardt, D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The importance of electronic correlation effects in the layered perovskite Sr$_2$RuO$_4$ is evidenced. To this end we use state-of-the-art LDA+DMFT (Local Density Approximation + Dynamical Mean-Field Theory) in the basis of Wannier functions to compute spectral functions and the quasiparticle dispersion of Sr$_2$RuO$_4$. The spectra are found to be in good agreement with various spectroscopic experiments. We also calculate the $\textbf{k}$-dependence of the quasiparticle bands and compare the results with new angle resolved photoemission (ARPES) data. Two typical manifestations of strong Coulomb correlations are revealed: (i) the calculated quasiparticle mass enhancement of $m^*/m \approx2.5$ agrees with various experimental results, and (ii) the satellite structure at about 3 eV binding energy observed in photoemission experiments is shown to be the lower Hubbard band. For these reasons Sr$_2$RuO$_4$ is identified as a strongly correlated 4$d$ electron material.
description: 14 pages, 11 figures, 1 table
Power laws and self-similar behavior in negative ionization fronts
Creators: name: Arrayás, Manuel
name: Fontelos, Marco A.
name: Trueba, José L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study anode-directed ionization fronts in curved geometries. When the magnetic effects can be neglected, an electric shielding factor determines the behavior of the electric field and the charged particle densities. From a minimal streamer model, a Burgers type equation which governs the dynamics of the electric shielding factor is obtained. A Lagrangian formulation is then derived to analyze the ionization fronts. Power laws for the velocity and the amplitude of streamer fronts are observed numerically and calculated analytically by using the shielding factor formulation. The phenomenon of geometrical diffusion is explained and clarified, and a universal self-similar asymptotic behavior is derived.
description: 25 pages, 9 figures
NON-METROPOLITAN TO METROPOLITAN AREA MIGRATION OF YOUNG ADULTS
Creators: name: Mills, Bradford F.
name: Hazarika, Gautam
name: Mills, Bradford F.
name: Hazarika, Gautam
Publisher: name: Unknown
Year: 1999
Subjects: Institutional and Behavioral Economics
Labor and Human Capital

description: The decisions of young adults from non-metropolitan areas to either migrate to metropolitan areas or remain in non-metropolitan areas following the completion of schooling are studied in this paper. The migration decision is decomposed into an hourly initial earnings component and a cost component comprising the financial, psychic, and employment attainment costs of migration. There are three noteworthy findings. First, while the propensity to migrate increases in educational attainment, contrary to conventional wisdom, this is entirely attributable to lower costs to migration among more educated individuals. Second, weak local economic conditions exert a strong influence on migration behavior. Specifically, high local unemployment rates and low per-capita county income significantly increase the cost of migration. Third, expected differences in initial earnings continue to provide an important incentive for young adults to migrate from non-metropolitan to metropolitan areas.
Spontaneous Chiral-Spin Ordering in Spin-Orbit Coupled Honeycomb Magnets
Creators: name: Luo, Qiang
name: Stavropoulos, P. Peter
name: Gordon, Jacob S.
name: Kee, Hae-Young
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Frustrated magnets with highly degenerate ground states are at the heart of hunting exotic states of matter. Recent studies in spin-orbit coupled honeycomb magnets have generated immense interest in bond-dependent interactions, appreciating a symmetric off-diagonal $Γ$ interaction which exhibits a macroscopic degeneracy in the classical limit. Here, we study a generic spin model and discover a novel chiral-spin ordering with spontaneously broken time-reversal symmetry near the dominant $Γ$ region. The chiral-spin phase is demonstrated to possess a staggered chirality relation in different sublattices, and it exhibits gapless excitations as revealed by the vanishing energy gap and the finite central charge on cylinders. Although there is a vestige of a tiny peak in the corner of the second Brillouin zone, the magnetic order is likely to vanish as the system size increases. Finally, we also attempt to gain insight into the possible topological signature of the chiral-spin phase by calculating the dynamic structure factor and the modular $\mathcal{S}$ matrix.
description: 12+6 pages, 9+11 figures, 1+2 tables. Accepted by Physical Review Research
I costi della comunicazione scientifica
Creators: name: Galimberti, Paola
Publisher: name: Zenodo
Year: 2024

description: La presentazione è stata fatta il giorno 8 gennaio 2023 durante una audizione del Gruppo di lavoro del MUR sulla implementazione del PNSA e contiene alcune considerazioni sui costi della comunicazione scientifica, sulla necessità di averne piena contezza a livello nazionale e su alcuni possibili progetti futuri a partire dalla esperienza in atto in America Latina.
POTENTIAL FARM-LEVEL IMPACTS OF PROPOSED FQPA IMPLEMENTATION: THE TENNESSEE CASE
Creators: name: Ray, Daryll E.
name: Slinsky, Stephen P.
name: Torre Ugarte, Daniel De La
name: Tiller, Kelly
name: Ray, Daryll E.
name: Slinsky, Stephen P.
name: Torre Ugarte, Daniel De La
name: Tiller, Kelly
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: Environmental Economics and Policy
subject: FQPA
subject: organophosphates
subject: carbamates
subject: insecticides
subject: farm-level analysis

description: This research estimates farm-level impacts of a potential ban on organophosphates and carbamates under the FQPA. Insecticide expenditure and first- and fifth-year yield impacts are estimated for five Tennessee representative farms. Results indicate that within five years, the ban could reduce net farm income on Tennessee farms by 16 to 46 percent.
Do fertility a awarness based methods (FAM) promote a good marrital relationship?
Creators: name: Ślizień-Kuczapska, Ewa
name: Mędza, Aleksandra
name: Czarnowicz, Sylwia
name: Rabijewski, Michał
Publisher: name: Quarterly Journal Fides et Ratio
Year: 2019

description: The publication presents current research on the relationship between marital unity and the choice of one of the fertility awareness based methods (FAM) for family planning. Most data confirm that the spouses' lifestyle (inscribed in the natural cycle of female fertility and infertility) strengthens their relationship, increases creativity, promotes communication improvement, teaches them perseverance and fosters fertility care. Advances in knowledge in the field of physiology of procreation have made it possible to elaborate modern methods of natural family planning (NFP) which are similar to criteria of the ideal method. The situation after childbirth promotes the development of non-genital unity of parents. It may become an opportunity for a florescence of spiritual and intellectual life and lead to creative sexuality of a couple. Parents after labor receive support from a qualified FAM teacher or instructor. It would be worthwhile if medical staff could also recommend FAM. Key words: marital unity, NFP (natural family planning), FAM (Fertility Awareness based Methods), procreative health
description: Quarterly Journal Fides et Ratio, Tom 39 Nr 3 (2019): ŻYCIE I PŁODNOŚĆ. UJĘCIE INTEGRALNE
Magnetism in (III, Mn)-V Diluted Magnetic Semiconductors: Effective Heisenberg Model
Creators: name: Hilbert, S.
name: Nolting, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: The magnetic properties of the diluted magnetic semiconductors (DMS) (Ga, Mn)As and (Ga, Mn)N are investigated by means of an effective Heisenberg model, whose exchange parameters are obtained from first-principle calculations. The finite-temperature properties of the model are studied numerically using a method based upon the Tyablikov approximation. The method properly incorporates the effects of positional disorder present in DMS. The resulting Curie temperatures for (Ga, Mn)As are in excellent agreement with experimental data. Due to percolation effects and noncollinear magnetic structures at higher Mn concentrations, our calculations predict for (Ga, Mn)N very low Curie temperatures compared to mean-field estimates.
description: 5 pages, 7 figures, sbumitted to PRB
Höffner, Joseph: Selbstverständnis und Perspektiven des zweiten vatikanischen Konzils...
Creators: name: Schweigart, Hans Günther
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 15 Nr. 4 (1966): Ökumenische Rundschau, Band 15, Heft 4
Formation and transportation of sand-heap in an inclined and vertically vibrated container
Creators: name: Miao, Guoqing
name: Huang, Kai
name: Yun, Yi
name: Zhang, Peng
name: Chen, Weizhong
name: Wang, Xinlong
name: Wei, Rongjue
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We report the experimental findings of formation and motion of heap in granular materials in an inclined and vertically vibrated container. We show experimentally how the transport velocity of heap up container is related to the driving acceleration as well as the driving frequency of exciter. An analogous experiment was performed with a heap-shaped Plexiglas block. We propose that cohesion force resulted from pressure gradient in ambient gas plays a crucial role in enhancing and maintaining a heap, and ratchet effect causes the movement of the heap. An equation which governs the transport velocity of the heap is presented.
description: 9 pages, 5 figures, submitted to PRE
Advanced Image Processing Systems
Creators: name: Dastres, Roza
name: Soori, Mohsen
Publisher: name: figshare
Year: 2021
Subjects: Computer Engineering

description: Image processing is a subset of digital signal processing that has different applications and benefits in different fields. Digital processing is in fact the digital image processing that can be performed with the help of computer science, programming and artificial intelligence. Image processing is one of the applications and subsets of artificial intelligence that, as its name suggests, processes digital images and displays a certain output with specific information based on predefined training. Nowadays, the applications of image processing technology in various fields in technical, industrial, scientific, security, medical, etc. have caused a lot of attention and use by different people. This paper presents the recent development and applications in the image processing systems in order to move forward the research filed by reviewing and analyzing recent achievements in the published papers. As a result, advanced image processing systems in different applications can be developed and new techniques in the image processing systems can be introduced.
VALUING PLANT GENETIC RESOURCES: AN ECONOMIC MODEL OF UTILIZATION OF THE U.S. NATIONAL CROP GERMPLASM COLLECTION
Creators: name: Zohrabian, Armineh
name: Traxler, Greg
name: Zohrabian, Armineh
name: Traxler, Greg
Publisher: name: Unknown
Year: 1999
Subjects: Research and Development/Tech Change/Emerging Technologies

description: Exploration of a germplasm collection for a particular trait is viewed as a search within a given distribution. An optimal strategy would be to search and collect additional accessions for traits as long as expected benefit is greater or equal to the cost of collecting, conserving and testing it. The probability of finding a desirable trait depends on the number of accessions that are screened for the trait, and the distribution of that trait in the collection or in certain subcollections. This study will estimate the expected net return from an additional search opportunity in regard to several pest resistance traits for soybeans both when the additional accession is from the existing collection, and when it is newly acquired.
FISHERY BUY-BACK PROGRAMMES AND ECONOMIC WELFARE
Creators: name: Campbell, Harry F.
name: Campbell, Harry F.
Publisher: name: Unknown
Year: 1989
Subjects: Environmental Economics and Policy
Resource /Energy Economics and Policy

description: Fishery buy-back programmes reduce the availability to the industry of certain inputs used in the harvesting process, thereby increasing fishing costs and reducing the amount of effort applied to the fishery. The reduction in effort generates an economic benefit which must be weighed against the increased costs. The paper develops an economic model of a buy-back programme which can be used to estimate the effect of the programme on economic welfare. The model is applied to the Tasmanian rock lobster fishery.