cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Tolerance against conducting filament formation in nanosheet-derived titania thin films
Creators: name: Sato, Masaya
name: Hara, Masahiro
name: Funatsu, Asami
name: Nouchi, Ryo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Applied Physics (physics.app-ph)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Herein, titania thin films are fabricated by a facile liquid-phase method based on vacuum filtration of a colloidal suspension of titania nanosheets, which is followed by thermal annealing to transform the nanosheet film into anatase TiO2. Nanosheet-derived titania thin films exhibit poor resistive switching with an interface-type mechanism. This behaviour is distinct from the filamentary switching that has been observed with titania thin films fabricated by other conventional techniques. This tolerance against conducting-filament formation may be ascribed to a low concentration of oxygen vacancies in nanosheet-derived films, which is expected because of the O/Ti ratio of titania (Ti0.87O2) nanosheets being larger than that of TiO2. Besides, the dielectric breakdown strength of nanosheet-derived films is found to be comparable to or higher than that of titania thin films fabricated by other techniques. These findings clearly indicate the usefulness of nanosheet-derived titania thin films for dielectric applications.
CO-OPERATING TO COMPETE IN HIGH VELOCITY GLOBAL MARKETS: THE STRATEGIC ROLE OF FLEXIBLE SUPPLY CHAIN ARCHITECTURES
Creators: name: Gow, Hamish R.
name: Oliver, Lance D.
name: Gow, Neil G.
name: Gow, Hamish R.
name: Oliver, Lance D.
name: Gow, Neil G.
Publisher: name: Unknown
Year: 2002
Subjects: subject: Industrial Organization
subject: Marketing
subject: FOS: Economics and business
subject: value creation
subject: flexible supply chain architectures
subject: leverage
subject: core competencies.

description: Continued value creation is paramount for the survival of firms competing in today's high velocity global business environment. This paper presents a conceptual framework for understanding how firms can create and capture value within a highly volatile and uncertain business environment by exploiting both performance gaps and opportunity gaps through the development and use of flexible supply chain architectures. The choice of flexible organizational architecture allows for the continued reconfiguration of the independent modular components of the supply chain so as to achieve optimal leverage of both the firms core competencies as well as their collaborative partners complementary resources. The case of "Cellars of Canterbury," a New Zealand based International wine marketing and distribution cooperative enterprise provides empirical support. Keywords: value creation, flexible supply chain architectures, leverage, core competencies.
Observation of tunable mobility edges in generalized Aubry-André lattices
Creators: name: An, Fangzhao Alex
name: Padavić, Karmela
name: Meier, Eric J.
name: Hegde, Suraj
name: Ganeshan, Sriram
name: Pixley, J. H.
name: Vishveshwara, Smitha
name: Gadway, Bryce
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Using synthetic lattices of laser-coupled atomic momentum modes, we experimentally realize a recently proposed family of nearest-neighbor tight-binding models having quasiperiodic site energy modulation that host an exact mobility edge protected by a duality symmetry. These one-dimensional tight-binding models can be viewed as a generalization of the well-known Aubry-André (AA) model, with an energy-dependent self duality condition that constitutes an analytical mobility edge relation. By adiabatically preparing the lowest and highest energy eigenstates of this model system and performing microscopic measurements of their participation ratio, we track the evolution of the mobility edge as the energy-dependent density of states is modified by the model's tuning parameter. Our results show strong deviations from single-particle predictions, consistent with attractive interactions causing both enhanced localization of the lowest energy state due to self-trapping and inhibited localization of the highest energy state due to screening. This study paves the way for quantitative studies of interaction effects on self duality induced mobility edges.
description: 6 pages, 3 figures, and ancillary Supplementary Materials file
"Making sense of difference" : the social organization of intergroup relations in health care provision
Creators: name: Reimer Kirkham, Sheryl Marie
Publisher: name: University of British Columbia
Year: 2009

description: Despite growing evidence of racialized health care experiences and inequitable health outcomes for patients of Colour, theoretical and practice responses have not typically addressed these concerns. This ethnographic study approached this problem by examining the social organization of intergroup relations in health care provision, beginning with the standpoints of nurses and patients. Over one year, the investigator conducted 220 hours of field work and interviews with 30 health care providers and five patients on three surgical units in two hospitals. Through this process of research, intergroup relations in health care provision were revealed as more complicated than commonly represented. Under ideal conditions, intergroup provider-recipient encounters illustrated "connected care", marked by respectful interpersonal connections, an understanding of the illness experience from the patient's perspective, and a holistic grasp of the patient's health care needs. Interpretive lenses were employed by nurses to make sense of "difference" and influenced how they provided intergroup care. However, various factors negatively influenced the provision of connected care. Depending on their interpretive lenses, individual nurses might participate in racialized discourses and practices. Recent trends brought about by health care reform, along with longstanding issues such as functional approaches, the immediate nature of nurses' work, and biomedical dominance, came together in particular ways to constitute nurses' work as disjunctured and "heavy", and mitigated connected care, especially to patients who did not speak English. Institutional and community contexts, shaped by professional and public discourses, also mediated intergroup relations in significant ways. The social construct of race was mobilized in health care settings in subtle but damaging ways as common applications of the construct of culture and interpretations of "difference" often drew on colonial notions of race, thereby reinforcing longstanding patterns of domination and inequities. In light of these findings, re-conceptualized theoretical approaches are recommended for more realistic and nuanced understandings of intergroup relations and transformative health care practices. Critical consciousness must be fostered among nurses in order to facilitate connected intergroup care, challenge existing work environments, and confront racializing discourses and practices.
THE ROLE OF HEALTH INFORMATION ON FRUITS AND VEGETABLE CONSUMPTION
Creators: name: Acharya, Ram N.
name: Acharya, Ram N.
Publisher: name: Unknown
Year: 2001
Subjects: Food Consumption/Nutrition/Food Safety

description: A three-equation partially-recursive econometric model is specified linking consumer awareness, beliefs, attitude, and dietary behaviors. The results show that older, better educated and higher income households are more likely to meet five-a-day servings of fruits and vegetables than those who are poor and less educated.
Fidelity of holonomic quantum computations in the case of random errors in the values of control parameters
Creators: name: Buividovich, P. V.
name: Kuvshinov, V. I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the influence of random errors in external control parameters on the stability of holonomic quantum computation in the case of arbitrary loops and adiabatic connections. A simple expression is obtained for the case of small random uncorrelated errors. Due to universality of mathematical description our results are valid for any physical system which can be described in terms of holonomies. Theoretical results are confirmed by numerical simulations.
description: 7 pages, 3 figures
On Spectral Theory for Schrödinger Operators with Strongly Singular Potentials
Creators: name: Gesztesy, Fritz
name: Zinchenko, Maxim
Publisher: name: arXiv
Year: 2005
Subjects: subject: Spectral Theory (math.SP)
subject: Mathematical Physics (math-ph)
subject: FOS: Mathematics
subject: FOS: Physical sciences
subject: 34B20, 34L05, 34B24, 47A10

description: We examine two kinds of spectral theoretic situations: First, we recall the case of self-adjoint half-line Schrödinger operators on $[a,\infty)$, $a\in\mathbb{R}$, with a regular finite end point $a$ and the case of Schrödinger operators on the real line with locally integrable potentials, which naturally lead to Herglotz functions and $2\times 2$ matrix-valued Herglotz functions representing the associated Weyl-Titchmarsh coefficients. Second, we contrast this with the case of self-adjoint half-line Schrödinger operators on $(a,\infty)$ with a potential strongly singular at the end point $a$. We focus on situations where the potential is so singular that the associated maximally defined Schrödinger operator is self-adjoint (equivalently, the associated minimally defined Schrödinger operator is essentially self-adjoint) and hence no boundary condition is required at the finite end point $a$. For this case we show that the Weyl-Titchmarsh coefficient in this strongly singular context still determines the associated spectral function, but ceases to posses the Herglotz property. However, as will be shown, Herglotz function techniques continue to play a decisive role in the spectral theory for strongly singular Schrödinger operators.
description: 48 pages, some simplifications in Sects. 2 and 3 are made
Bayesian Shrinkage Approaches to Unbalanced Problems of Estimation and Prediction on the Basis of Negative Multinomial Samples
Creators: name: Hamura, Yasuyuki
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistics Theory (math.ST)
subject: Methodology (stat.ME)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences

description: In this paper, we treat estimation and prediction problems where negative multinomial variables are observed and in particular consider unbalanced settings. First, the problem of estimating multiple negative multinomial parameter vectors under the standardized squared error loss is treated and a new empirical Bayes estimator which dominates the UMVU estimator under suitable conditions is derived. Second, we consider estimation of the joint predictive density of several multinomial tables under the Kullback-Leibler divergence and obtain a sufficient condition under which the Bayesian predictive density with respect to a hierarchical shrinkage prior dominates the Bayesian predictive density with respect to the Jeffreys prior. Third, our proposed Bayesian estimator and predictive density give risk improvements in simulations. Finally, the problem of estimating the joint predictive density of negative multinomial variables is discussed.
description: 34 pages, 1 figure
ALTERNATIVE SERVICE DELIVERY STRATEGIES FOR LOCAL GOVERNMENTS
Creators: name: Brunet, Alexia
name: McNamara, Kevin T.
name: Deboer, Larry
name: Brunet, Alexia
name: McNamara, Kevin T.
name: Deboer, Larry
Publisher: name: Unknown
Year: 2001
Subjects: subject: Public Economics
subject: firefighters
subject: volunteer organizations
subject: taxes
subject: municipal service demands
subject: local spending
subject: population growth
subject: median voter

description: A model for observing public service delivery choice in the presence of economic expansion is presented. Regression techniques were used to estimate the share of county population served by volunteer fire protection from variables measuring community demands for and relative costs of fire protection services.
ARE U.S. FARM PROGRAMS GOOD PUBLIC POLICY? TAKING POLICY PERFORMANCE SERIOUSLY
Creators: name: Hopkins, Jeffrey W.
name: Taylor, Michael A.
name: Hopkins, Jeffrey W.
name: Taylor, Michael A.
Publisher: name: Unknown
Year: 2001
Subjects: Agricultural and Food Policy

description: Distributional analysis is employed to assess the ethical acceptability of agricultural policy along plurastic moral criteria. Using 1999 micro-data from USDA ARMS survey and the Federal Reserve's Survey of Consumer Finances, we discuss policy performance (measured as the effect of direct government payments on the distribution of incomes and profits) relative to policy goals. We show that current programs only minimally address the post-?farm problem? objective of providing a safety net, and the goal of providing an abundant supply of agricultural products is potentially well-implemented given institutional constraints.
Additional file 1 of Does a ketogenic diet have beneficial effects on quality of life, physical activity or biomarkers in patients with breast cancer: a randomized controlled clinical trial
Creators: name: Adeleh Khodabakhshi
name: Seyfried, Thomas N.
name: Kalamian, Miriam
name: Beheshti, Maryam
name: Davoodi, Sayed Hossein
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1: figure 1. Flow diagram of the patient treatment process.
Asymmetric distributions of H2O and SiO masers towards V627 Cas
Creators: name: Yang, Haneul
name: Cho, Se-Hyung
name: Yun, Youngjoo
name: Yoon, Dong-Hwan
name: Kim, Dong-Jin
name: Kim, Hyosun
name: Yoon, Sung-Chul
name: Dodson, Richard
name: Rioja, María J.
name: Imai, Hiroshi
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 performed simultaneous observations of the H2O 6(1,6) - 5(2,3) (22.235080 GHz) and SiO v= 1, 2, J = 1 - 0, SiO v = 1, J = 2 - 1, 3 - 2 (43.122080, 42.820587, 86.243442, and 129.363359 GHz) masers towards the suspected D-type symbiotic star, V627 Cas, using the Korean VLBI Network. Here, we present astrometrically registered maps of the H2O and SiO v = 1, 2, J = 1 - 0, SiO v = 1, J = 2 - 1 masers for five epochs from January 2016 to June 2018. Distributions of the SiO maser spots do not show clear ring-like structures, and those of the H2O maser are biased towards the north-north-west to west with respect to the SiO maser features according to observational epochs. These asymmetric distributions of H2O and SiO masers are discussed based on two scenarios of a bipolar outflow and the presence of the hot companion, a white dwarf, in V627 Cas. We carried out ring fitting of SiO v = 1, and v = 2 masers and estimated the expected position of the cool red giant. The ring radii of the SiO v = 1 maser are slightly larger than those of the SiO v = 2 maser, as previously known. Our assumption for the physical size of the SiO maser ring of V627 Cas to be the typical size of a SiO maser ring radius (\sim4 au) of red giants yields the distance of V627 Cas to be \sim1 kpc.
description: 7 pages, 4 figures, 1 table, Published in MNRAS
Ab initio studies of phonon softening and high pressure phase transitions of alpha-quartz SiO2
Creators: name: Choudhury, N.
name: Chaplot, S. L.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Density functional perturbation theory calculations of alpha-quartz using extended norm conserving pseudopotentials have been used to study the elastic properties and phonon dispersion relations along various high symmetry directions as a function of bulk, uniaxial and non-hydrostatic pressure. The computed equation of state, elastic constants and phonon frequencies are found to be in good agreement with available experimental data. A zone boundary (1/3, 1/3, 0) K-point phonon mode becomes soft for pressures above P=32 GPa. Around the same pressure, studies of the Born stability criteria reveal that the structure is mechanically unstable. The phonon and elastic softening are related to the high pressure phase transitions and amorphization of quartz and these studies suggest that the mean transition pressure is lowered under non-hydrostatic conditions. Application of uniaxial pressure, results in a post-quartz crystalline monoclinic C2 structural transition in the vicinity of the K-point instability. This structure, intermediate between quartz and stishovite has two-thirds of the silicon atoms in octahedral coordination while the remaining silicon atoms remain tetrahedrally coordinated. This novel monoclinic C2 polymorph of silica, which is found to be metastable under ambient conditions, is possibly one of the several competing dense forms of silica containing octahedrally coordinated silicon. The possible role of high pressure ferroelastic phases in causing pressure induced amorphization in silica are discussed.
description: 17 pages, 8 figs., 8 Tables
Additional file 2 of Does a ketogenic diet have beneficial effects on quality of life, physical activity or biomarkers in patients with breast cancer: a randomized controlled clinical trial
Creators: name: Adeleh Khodabakhshi
name: Seyfried, Thomas N.
name: Kalamian, Miriam
name: Beheshti, Maryam
name: Davoodi, Sayed Hossein
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Cancer
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2: figure 2. Median (confidence interval) tyroid hormones in baseline and 12-week by two trial arms in breast cancer patients.
Estimation of pure quantum states in high dimension at the limit of quantum accuracy through complex optimization and statistical inference
Creators: name: Zambrano, Leonardo
name: Pereira, Luciano
name: Niklitschek, Sebastian
name: Delgado, Aldo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum tomography has become a key tool for the assessment of quantum states, processes, and devices. This drives the search for tomographic methods that achieve greater accuracy. In the case of mixed states of a single 2-dimensional quantum system adaptive methods have been recently introduced that achieve the theoretical accuracy limit deduced by Hayashi and Gill and Massar. However, accurate estimation of higher-dimensional quantum states remains poorly understood. This is mainly due to the existence of incompatible observables, which makes multiparameter estimation difficult. Here we present an adaptive tomographic method and show through numerical simulations that, after a few iterations, it is asymptotically approaching the fundamental Gill-Massar lower bound for the estimation accuracy of pure quantum states in high dimension. The method is based on a combination of stochastic optimization on the field of the complex numbers and statistical inference, exceeds the accuracy of any mixed-state tomographic method, and can be demonstrated with current experimental capabilities. The proposed method may lead to new developments in quantum metrology.
description: 10 pages, 2 figures
ESTIMATING ACTUAL BID-ASK SPREADS IN COMMODITY FUTURES MARKETS
Creators: name: Bryant, Henry L.
name: Haigh, Michael S.
name: Bryant, Henry L.
name: Haigh, Michael S.
Publisher: name: Unknown
Year: 2001
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Various bid-ask spread estimators are applied to transaction data from LIFFE commodity futures markets, and the resulting estimates are compared to observed actual bid-ask spreads. Results suggest that actual bid-ask spreads, unlike effective spreads, can be reasonably estimated using transaction data. Estimates of actual spreads gives market participants and researchers some idea of potential transaction costs, and will be useful for assessing the efficiency of electronic trading relative to open-outcry trading. Results indicate that estimators using averages of absolute price changes perform better at estimating actual bid-ask spreads in futures markets than estimators using the covariance of successive price changes
MANAGEMENT STRATEGIES AND HUMAN CAPITAL INVESTMENTS BY ORGANIC PRODUCERS
Creators: name: Park, Timothy A.
name: Lohr, Luanne
name: Park, Timothy A.
name: Lohr, Luanne
Publisher: name: Unknown
Year: 2001
Subjects: Farm Management
Labor and Human Capital

description: Survey evidence from U.S. organic farmers is evaluated to identify the factors influencing adoption of farm management strategies to mitigate the impact of key production constraints. A multilevel count data model is specified for the number of frequently used management strategies adopted by organic farmers facing pest control problems.
A Pairwise Probe for Understanding BERT Fine-Tuning on Machine Reading Comprehension
Creators: name: Cai, Jie
name: Zhu, Zhengzhou
name: Nie, Ping
name: Liu, Qian
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: FOS: Computer and information sciences

description: Pre-trained models have brought significant improvements to many NLP tasks and have been extensively analyzed. But little is known about the effect of fine-tuning on specific tasks. Intuitively, people may agree that a pre-trained model already learns semantic representations of words (e.g. synonyms are closer to each other) and fine-tuning further improves its capabilities which require more complicated reasoning (e.g. coreference resolution, entity boundary detection, etc). However, how to verify these arguments analytically and quantitatively is a challenging task and there are few works focus on this topic. In this paper, inspired by the observation that most probing tasks involve identifying matched pairs of phrases (e.g. coreference requires matching an entity and a pronoun), we propose a pairwise probe to understand BERT fine-tuning on the machine reading comprehension (MRC) task. Specifically, we identify five phenomena in MRC. According to pairwise probing tasks, we compare the performance of each layer's hidden representation of pre-trained and fine-tuned BERT. The proposed pairwise probe alleviates the problem of distraction from inaccurate model training and makes a robust and quantitative comparison. Our experimental analysis leads to highly confident conclusions: (1) Fine-tuning has little effect on the fundamental and low-level information and general semantic tasks. (2) For specific abilities required for downstream tasks, fine-tuned BERT is better than pre-trained BERT and such gaps are obvious after the fifth layer.
description: e.g.: 4 pages, 1 figure
Unsupervised Deep Learning for Massive MIMO Hybrid Beamforming
Creators: name: Hojatian, Hamed
name: Nadal, Jeremy
name: Frigon, Jean-Francois
name: Leduc-Primeau, Francois
Publisher: name: arXiv
Year: 2020
Subjects: subject: Signal Processing (eess.SP)
subject: Machine Learning (cs.LG)
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Computer and information sciences

description: Hybrid beamforming is a promising technique to reduce the complexity and cost of massive multiple-input multiple-output (MIMO) systems while providing high data rate. However, the hybrid precoder design is a challenging task requiring channel state information (CSI) feedback and solving a complex optimization problem. This paper proposes a novel RSSI-based unsupervised deep learning method to design the hybrid beamforming in massive MIMO systems. Furthermore, we propose i) a method to design the synchronization signal (SS) in initial access (IA); and ii) a method to design the codebook for the analog precoder. We also evaluate the system performance through a realistic channel model in various scenarios. We show that the proposed method not only greatly increases the spectral efficiency especially in frequency-division duplex (FDD) communication by using partial CSI feedback, but also has near-optimal sum-rate and outperforms other state-of-the-art full-CSI solutions.
description: Submitted to IEEE Transactions on Wireless Communications
EXCHANGE RATE CHANGES AND PRICING-TO-MARKET BEHAVIOR OF U.S. MEAT EXPORTERS
Creators: name: Saghaian, Sayed H.
name: Reed, Michael R.
name: Saghaian, Sayed H.
name: Reed, Michael R.
Publisher: name: Unknown
Year: 2001
Subjects: International Relations/Trade

description: This study examines the pricing-to-market behavior of U.S. meat exporters across destination markets and investigates the sensitivity of U.S. export prices in response to exogenous exchange rate changes. The objective is to see whether price discrimination is present or meat export markets have become more integrated during the 1990s.
DEMOGRAPHICS AND THE VALUE OF PARK PROXIMITY IN GREENVILLE, SOUTH CAROLINA
Creators: name: Espey, Molly
name: Owusu-Edusei, Kwame
name: Espey, Molly
name: Owusu-Edusei, Kwame
Publisher: name: Unknown
Year: 2001
Subjects: Resource /Energy Economics and Policy

description: The effect of proximity to different types of parks on housing prices is estimated using a unique data set of single family homes sold between 1990 and 1999 in Greenville, South Carolina. The value of park proximity is found to vary with respect to park size and amenities, as well as household income and family size. The greatest impact on housing values was found with proximity to small neighborhood parks, with property values as much as 13 percent higher for homes within 600 feet of such parks. The positive impact of proximity to attractive medium size parks extended to homes as far as 1500 feet from the park. The value of park proximity increases with family size and is greater, as a percentage of housing value, for households with income below the median.
A Curious Case within Preprints: Is the Author Real?
Creators: name: McIntosh, Leslie D.
name: Sumner, Josh
name: Westling, Chris
Publisher: name: figshare
Year: 2021
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: An assumption at the heart of the scientific publication process is that the author of a manuscript is a scientist. But how can we tell when that is not the case? This supplements an article in The Scholarly Kitchen highlighting one case of a person acting as a scientist and placing papers on mulitple preprint platforms.
Accelerating boundary analog of a Kerr black hole
Creators: name: Good, Michael R. R.
name: Foo, Joshua
name: Linder, Eric V.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: An accelerated boundary correspondence (i.e. a flat spacetime accelerating mirror trajectory) is derived for the Kerr spacetime, with a general formula that ranges from the Schwarzschild limit (zero angular momentum) to the extreme maximal spin case (yielding asymptotic uniform acceleration). The beta Bogoliubov coefficients reveal the particle spectrum is a Planck distribution at late times with temperature cooler than a Schwarzschild black hole, due to the "spring constant" analog of angular momentum. The quantum stress tensor indicates a constant emission of energy flux at late times consistent with eternal thermal equilibrium.
description: 7 pages, 6 figures
Fractional branes and the gravity dual of partial supersymmetry breaking
Creators: name: Merlatti, Paolo
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In type IIB string theory, we consider fractional D3-branes in the orbifold background dual to four-dimensional N=2 supersymmetric Yang-Mills theory. We find the gravitational dual description of the generation of a non-trivial field theory potential on the Coulomb branch. When the orbifold singularity is softened to the smooth Eguchi-Hanson space, the resulting potential induces spontaneous partial supersymmetry breaking. We study the N=1 theory arising in those vacua and we see how the resolved conifold geometry emerges in this way. It will be natural to identify the size of the blown-up two-cycle of that geometry with the inverse mass of the adjoint chiral scalar. We finally discuss the issue of geometric transition in this context.
description: 20 pages, no figures, references added
Direct Experimental Evidence of Exciton-Phonon Bound States in Carbon Nanotubes
Creators: name: Plentz, Flavio
name: Ribeiro, Henrique B.
name: Jorio, Ado
name: Pimenta, Marcos A.
name: Strano, Michael S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present direct experimental observation of exciton-phonon bound states in the photoluminescence excitation spectra of isolated single walled carbon nanotubes in aqueous suspension. The photoluminescence excitation spectra from several distinct single-walled carbon nanotubes show the presence of at least one sideband related to the tangential modes, lying {200 meV} above the main absorption/emission peak. Both the energy position and line shapes of the sidebands are in excellent agreement with recent calculations [PRL {\bf 94},027402 (2005)] that predict the existence of exciton-phonon bound states, a sizable spectral weight transfer to these exciton-phonon complexes and that the amount of this transfer depends on the specific nanotube structure and diameter. The observation of these novel exciton-phonon complexes is a strong indication that the optical properties of carbon nanotubes have an excitonic nature and also of the central role played by phonons in describing the excitation and recombination mechanisms in carbon nanotubes.
TARGETABLE MARKET SEGMENTS FOR NATURAL PORK PRODUCTS
Creators: name: Grannis, Jennifer L.
name: Thilmany, Dawn D.
name: Grannis, Jennifer L.
name: Thilmany, Dawn D.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Consumer/Household Economics
subject: Livestock Production/Industries
subject: willingness to pay
subject: market segmentation

description: A survey of consumers established willingness to pay for natural pork products. Probit estimation was used to define targetable market segments for ham and pork chops. High-income, frequent pork consumers, and those most concerned about the use of growth hormones and antibiotics, are most likely to purchase natural pork products.
Final State Interactions in Decays of the Exotic $π_{1}$ Meson
Creators: name: Poplawski, Nikodem J.
name: Szczepaniak, Adam P.
name: Londergan, J. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We analyze the role of final state interactions in decay of the lighest exotic meson, $pi_1$ with $J^{PC}=1^{-+}. We use the relativistic Lippmann-Schwinger equation for two coupled $πb_{1}$ and $πρ$ channels. The first one is the predicted dominant decay mode of the $π_{1}$, whereas in the other a narrow $π_1(1600)$ exotic signal has been reported by the E852 collaboration. The FSI potential is constructed, based on the $ω$ meson exchange between the two channels. We find that this process introduces corrections to the $π_{1}$ widths of the order of only a few MeV. Therefore, we conclude that a substantial $πρ$ mode cannot be generated through level mixing.
description: 7 pages, 11 figures
MODELING PRICE IMPACTS OF BACKWARD VERTICAL INTEGRATION IN THE US PORK INDUSTRY
Creators: name: Pritchett, James G.
name: Liu, Donald J.
name: Pritchett, James G.
name: Liu, Donald J.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Industrial Organization
subject: Livestock Production/Industries
subject: backward vertical integration
subject: oligopsony
subject: pork

description: The U.S. pork sector is evolving from an industry of small, independent firms vertically linked by spot markets to one of substantially larger firms vertically connected through contractual agreements and integration. Potential benefits to this tighter vertical arrangement include lower consumer pork prices, although the true nature of this benefit is still under debate. At the same time, there is concern of market foreclosure because highly vertically integrated industry may prevent independent hog producers from having access to open markets in which to sell their output. The objective of this paper is to develop an econometric model to estimate the extent of backward integration by pork processing firms into the upstream hog production stage, taking into account the oligopsonistic nature of the processors, and to simulate the effect of vertical integration on consumer and producer prices and welfare.
Finite Temperature Off-Diagonal Long-Range Order for Interacting Bosons
Creators: name: Colcelli, Andrea
name: Defenu, Nicolò
name: Mussardo, Giuseppe
name: Trombettoni, Andrea
Publisher: name: arXiv
Year: 2020
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Characterizing the scaling with the total particle number ($N$) of the largest eigenvalue of the one--body density matrix ($λ_0$), provides informations on the occurrence of the off-diagonal long-range order (ODLRO) according to the Penrose-Onsager criterion. Setting $λ_0\sim N^{\mathcal{C}_0}$, then $\mathcal{C}_0=1$ corresponds to ODLRO. The intermediate case, $0
description: 13 pages, 6 figures
On the numerical prediction and experimental investigation of reciprocating sliding wear
Creators: name: Iyer, Srinivasan
Publisher: name: University of British Columbia
Year: 2009

description: This thesis is devoted to the development of an improved wear model for estimating wear-loss in the field of sliding wear. A hard cylinder sliding on a softer disc is adopted for studying the wear system. Four governing sliding wear mechanisms, namely low cycle fatigue, ratchetting, mild wear and crack growth leading to particle detachment are identified. This inference is attained by the investigation of photomicrographs of experimentally obtained sectioned wear specimens. Surface statistical methods are used for quantifying the contacting asperities and finite element methods are used for evaluating the elastic-plastic strains. Equations are developed to predict the wear volume and the number of cycles for failure, from the history of strain-cycles and tangential work equivalence for low cycle fatigue wear and from the history of strain cycles and ratchetting depth for ratchetting wear. Through simulations, it is shown that the low cycle fatigue wear happens during plastic shakedown conditions and that ratchetting wear occurs above the ratchetting threshold. A predictive equation is developed for mild wear, based on tangential work equivalence and Hertzian contact mechanics parameters. It is shown that mild wear occurs during the elastic shakedown state. Applying finite element methods to linear elastic fracture mechanics, a model is developed, simulating crack growth and wear particle detachment, by assuming a surface crack. The range of mixed mode stress intensity factors for cyclic loading is evaluated and related to the crack extension in a prescribed number of cycles using a Paris type equation. The maximum tensile stress criterion is used for determining the crack turn angle during the crack propagation. A wear particle is detached from the parent surface when the crack propagates to the wearing surface. This mechanism occurs below the elastic limit, but under dry sliding and high normal loading levels. Experiments are conducted with specialised test-rig under a variety of loading and friction conditions. The microstructures of sections of the test-worn specimens are analysed for studying the wear characteristics. Experimental values agree well with the predicted values of wear-volume and aspect ratio of wear particles, justifying the validity of the proposed sliding wear model.
Blue, Green, and Red Bumps in AGN
Creators: name: Lawrence, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: I show that the summed spectral energy distribution (SED) $L(ν)$ of any extended blackbody radiator will scale in a predictable way if all parts of the body change in temperature by the same factor $X$, such that $ L^\prime(ν) = X^3L(ν/X) $. This should for example apply to accretion disks around black holes, where $X$ is relative accretion rate, or external heating rate, but will not apply to changes in black hole mass. I summarise evidence that AGN optical-UV SEDs become progressively redder with decreasing luminosity, and show that the trend in colour versus luminosity shown by Mushotzky and Wandel (1989) is matched extremely well by taking a template high-luminosity SED and scaling it in the manner described above. This agreement is striking because it involves {\em no adjustable parameters}. The agreement breaks down at low luminosities because of stellar contamination and reddening. I then consider the colour changes of an individual AGN (NGC 5548) during luminosity changes, which according to the popular X-ray reprocessing model, should follow the scaling law well. However the observed changes are clearly {\em not} consistent with the simple scaling prediction. Instead, these colour changes are quite well explained by the mixing of a constant red component and variable blue component. Overall, there is then strong support for the ideas (i) that AGN optical-UV SEDs arise from accretion discs, (ii) that accretion rate plays a significant role in the very large range of luminosity seen in AGN, and (ii) that the inner regions of AGN vary independently of the outer accretion disc.
description: Accepted for publication in MNRAS, 8 pages, 5 figures
CHANGING TOBACCO MARKETS: EFFECTS ON BURLEY TOBACCO FARMS
Creators: name: Tiller, Kelly
name: Ray, Daryll E.
name: Slinsky, Stephen P.
name: Tiller, Kelly
name: Ray, Daryll E.
name: Slinsky, Stephen P.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Agricultural and Food Policy
subject: Crop Production/Industries
subject: tobacco
subject: farm-level analysis
subject: representative farms
subject: Tennessee agriculture

description: Three representative Tennessee tobacco farms are used to estimate farm-level impacts of (1) program continuation with further quota cuts, and (2) program elimination in 2000. Results indicate that program elimination has more potential to reduce farm income and that larger and more diversified farms are less affected in both scenarios.
Quantum treatment of neutrino in background matter
Creators: name: Studenikin, Alexander
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Motivated by the need of elaboration of the quantum theory of the spin light of neutrino in matter ($SLν$), we have studied in more detail the exact solutions of the Dirac equation for neutrinos moving in the background matter. These exact neutrino wavefunctions form a basis for a rather powerful method of investigation of different neutrino processes in matter, which is similar to the Furry representation of quantum electrodynamics in external fields. Within this method we also derive the corresponding Dirac equation for an electron moving in matter and consider the electromagnetic radiation ("spin light of electron in matter", $SLe$) that can be emitted by the electron in this case.
description: 10 pages, in: Proceedings of QFEXT'05 (The Seventh Workshop on Quantum Field Theory under the Influence of External Conditions, IEEC, CSIC and University of Barcelona, Barcelona, Catalonia, Spain, 5-9 September 2005.), ed. by Emilio Elizalde and Sergei Odintsov; published in Journal of Physics A
Renormalization of noncommutative phi 4-theory by multi-scale analysis
Creators: name: Rivasseau, V.
name: Vignes-Tourneret, F.
name: Wulkenhaar, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this paper we give a much more efficient proof that the real Euclidean phi 4-model on the four-dimensional Moyal plane is renormalizable to all orders. We prove rigorous bounds on the propagator which complete the previous renormalization proof based on renormalization group equations for non-local matrix models. On the other hand, our bounds permit a powerful multi-scale analysis of the resulting ribbon graphs. Here, the dual graphs play a particular rôle because the angular momentum conservation is conveniently represented in the dual picture. Choosing a spanning tree in the dual graph according to the scale attribution, we prove that the summation over the loop angular momenta can be performed at no cost so that the power-counting is reduced to the balance of the number of propagators versus the number of completely inner vertices in subgraphs of the dual graph.
description: 34 pages
Activity River: Visualizing Planned and Logged Personal Activities for Reflection
Creators: name: Aseniero, Bon Adriel
name: Perin, Charles
name: Willett, Wesley
name: Tang, Anthony
name: Carpendale, Sheelagh
Publisher: name: arXiv
Year: 2020
Subjects: subject: Human-Computer Interaction (cs.HC)
subject: FOS: Computer and information sciences

description: We present Activity River, a personal visualization tool which enables individuals to plan, log, and reflect on their self-defined activities. We are interested in supporting this type of reflective practice as prior work has shown that reflection can help people plan and manage their time effectively. Hence, we designed Activity River based on five design goals (visualize historical and contextual data, facilitate comparison of goals and achievements, engage viewers with delightful visuals, support authorship, and enable flexible planning and logging) which we distilled from the Information Visualization and Human-Computer Interaction literature. To explore our approach's strengths and limitations, we conducted a qualitative study of Activity River using a role-playing method. Through this qualitative exploration, we illustrate how our participants envisioned using our visualization to perform dynamic and continuous reflection on their activities. We observed that they were able to assess their progress towards their plans and adapt to unforeseen circumstances using our tool.
description: 9 pages, 6 figures, AVI '20, September 28-October 2, 2020, Salerno, Italy 2020 Association for Computing Machinery
FACTORS EXPLAINING THE DIFFUSION OF HYBRID MAIZE: EVIDENCE FROM LATIN AMERICA AND THE CARIBBEAN IN SUPPORT OF THE LIFE CYCLE THEORY OF SEED INDUSTRY DEVELOPMENT
Creators: name: Kosarek, Jennifer
name: Morris, Michael L.
name: Garcia, Philip
name: Kosarek, Jennifer
name: Morris, Michael L.
name: Garcia, Philip
Publisher: name: Unknown
Year: 1999
Subjects: Crop Production/Industries

description: Factors affecting the diffusion of hybrid maize are explored using a unique data set from 18 countries in Latin America and the Caribbean. Our findings not only validate the conventional profitability-based explanations of farmer adoption behavior, but also confirm the importance of supply-side factors, providing empirical support for the life cycle theory of seed industry development.
MANAGING PEST RESISTANCE: THE POTENTIAL OF CROP ROTATIONS AND SHREDDING
Creators: name: Babcock, Bruce A.
name: Secchi, Silvia
name: Babcock, Bruce A.
name: Secchi, Silvia
Publisher: name: Unknown
Year: 1999
Subjects: subject: Crop Production/Industries
subject: Research and Development/Tech Change/Emerging Technologies
subject: biotechnology
subject: common property resource
subject: crop rotation
subject: European Corn Borer
subject: externalities
subject: insecticide resistance
subject: integrated pest management
subject: intertemporal optimization

description: The current debate over resistance management plans mandated by the Environmental Protection Agency for transgenic crops ignores management practices that are complementary to refuge schemes. A dynamic production model is developed that measures the costs and benefits of crop rotation and shredding in terms of delaying resistance to Bt corn.
Das Problem der Interkommunion in orthodoxer Sicht
Creators: name: Galitēs, Geōrgios Ant.
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 16 Nr. 3 (1967): Ökumenische Rundschau, Band 16, Heft 3
THE POTENTIAL FOR MARKETING PORK PRODUCTS WITH EMBEDDED ENVIRONMENTAL ATTRIBUTES: RESULTS FROM AN EXPERIMENTAL STUDY
Creators: name: Hurley, Sean P.
name: Kliebenstein, James B.
name: Hurley, Sean P.
name: Kliebenstein, James B.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business

description: Environmental issues such as air and water quality related to livestock production currently receive much attention. Potential methods for environmental improvement range from regulation to market solutions. This study looks at consumer willingness to pay for pork products with embedded environmental attributes. Experimental auctions showed that over one-half of the participants (62%) paid a premium, that did not vary significantly between differing regions of the United States.
Crowdfunding for Design Innovation: Prediction Model with Critical Factors
Creators: name: Song, Chaoyang
name: Luo, Jianxi
name: Hölttä-Otto, Katja
name: Seering, Warren
name: Otto, Kevin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computers and Society (cs.CY)
subject: FOS: Computer and information sciences

description: Online reward-based crowdfunding campaigns have emerged as an innovative approach for validating demands, discovering early adopters, and seeking learning and feedback in the design processes of innovative products. However, crowdfunding campaigns for innovative products are faced with a high degree of uncertainty and suffer meager rates of success to fulfill their values for design. To guide designers and innovators for crowdfunding campaigns, this paper presents a data-driven methodology to build a prediction model with critical factors for crowdfunding success, based on public online crowdfunding campaign data. Specifically, the methodology filters 26 candidate factors in the Real-Win-Worth framework and identifies the critical ones via step-wise regression to predict the amount of crowdfunding. We demonstrate the methodology via deriving prediction models and identifying essential factors from 3D printer and smartwatch campaign data on Kickstarter and Indiegogo. The critical factors can guide campaign developments, and the prediction model may evaluate crowdfunding potential of innovations in contexts, to increase the chance of crowdfunding success of innovative products.
description: 12 pages, 3 figures, 7 tables, accepted by IEEE TEM