cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Bar-Halo Interaction - II. Secular evolution and the religion of N-body simulations
Creators: name: Weinberg, Martin D.
name: Katz, Neal
Publisher: name: arXiv
Year: 2006
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This paper explores resonance-driven secular evolution between a bar and dark-matter halo using N-body simulations. We make direct comparisons to our analytic theory (Weinberg & Katz 2005) to demonstrate the great difficulty that an N-body simulation has representing these dynamics for realistic astronomical interactions. In a dark-matter halo, the bar's angular momentum is coupled to the central density cusp (if present) by the Inner Lindblad Resonance. Owing to this angular momentum transfer and self-consistent re-equilibration, strong realistic bars WILL modify the cusp profile, lowering the central densities within about 30% of the bar radius in a few bar orbits. Past results to the contrary (Sellwood 2006, McMillan & Dehnen 2005) may be the result of weak bars or numerical artifacts. The magnitude depends on many factors and we illustrate the sensitivity of the response to the dark-matter profile, the bar shape and mass, and the galaxy's evolutionary history. For example, if the bar length is comparable to the size of a central dark-matter core, the bar may exchange angular momentum without changing its pattern speed significantly. We emphasise that this apparently simple example of secular evolution is remarkably subtle in detail and conclude that an N-body exploration of any astronomical scenario requires a deep investigation into the underlying dynamical mechanisms for that particular problem to set the necessary requirements for the simulation parameters and method (e.g. particle number and Poisson solver). Simply put, N-body simulations do not divinely reveal truth and hence their results are not infallible. They are unlikely to provide useful insight on their own, particularly for the study of even more complex secular processes such as the production of pseudo-bulges and disk heating.
description: 23 pages, 18 figures, submitted to Monthly Notices. For paper with figures at full resolution: http://www.astro.umass.edu/~weinberg/weinberg_katz_2.ps.gz
Magnetic flux induced spin polarization in semiconductor multichannel rings with Rashba spin orbit coupling
Creators: name: Lozano, G. S.
name: Sánchez, M. J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We show that a finite magnetic flux threading a multichannel semiconductor ring induces spin accumulation at the borders of the sample when the Rashba spin-orbit interaction is taken into account even in the absence of external electric fields.
description: 5 pages, 4 figures
Experimental Applications of Protective Coatings to Shales Exposed in Highway Cuts
Creators: name: Havens, James H.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1968
Subjects: subject: Transportation Engineering

description: Many shales exposed in roadway cut-sections are susceptible to weathering, slaking, and erosion; fallout and taluses clog drainage; benches overflow; and occasionally landslides or rockslides develop. Presently, in design, certain types of shales and even named formations are afforded wider benches than others; soil mantles at the tops of cuts are being stripped back farther; and, of course, sound ledge-rock offers the preferred type of bench-cap. Pre-splitting methods of blasting have greatly enhanced the appearance of cuts and have minimized the shattering of cut faces. The resulting surfaces frequently are quite smooth when first exposed and remain so if the materials are resistant to weathering and erosion. However, erosive shales interbedded between sound rock ledges may eventually cause trouble.
Black hole singularity resolution via the modified Raychaudhuri equation in loop quantum gravity
Creators: name: Blanchette, Keagan
name: Das, Saurya
name: Hergott, Samantha
name: Rastgoo, Saeed
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We derive loop quantum gravity corrections to the Raychaudhuri equation in the interior of a Schwarzschild black hole and near the classical singularity. We show that the resulting effective equation implies defocusing of geodesics due to the appearance of repulsive terms. This prevents the formation of conjugate points, renders the singularity theorems inapplicable, and leads to the resolution of the singularity for this spacetime.
description: 28 pages, 10 figures, v2: additional citations added, v3: figure 5 added, few modifications to the text and stronger defocusing results presented
A changing inner radius in the accretion disc of Q0056-363?
Creators: name: Matt, G.
name: Porquet, D.
name: Bianchi, S.
name: Falocco, S.
name: Maiolino, R.
name: Reeves, J. N.
name: Zappacosta, L.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Q0056-363 is the most powerful X-ray quasar known to exhibit a broad, likely relativistic iron line (Porquet & Reeves 2003). It has been observed twice by XMM-$Newton$, three and half years apart (July 2000 and December 2003). In the second observation, the UV and soft X-ray fluxes were fainter, the hard X-ray power law flatter, and the iron line equivalent width (EW) smaller than in the 2000 observation. These variations can all be explained, at least qualitatively, if the disc is truncated in the second observation. We report also on the possible detection of a transient, redshifted iron absorption line during the 2003 observation.
description: Accepted for publication in A&A
Certainty relations between local and nonlocal observables
Creators: name: Diaz, R. Garcia
name: Romero, J. L.
name: Bjork, G.
name: Bourennane, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We demonstrate that for an arbitrary number of identical particles, each defined on a Hilbert-space of arbitrary dimension, there exists a whole ladder of relations of complementarity between local, and every conceivable kind of joint (or nonlocal) measurements. E.g., the more accurate we can know (by a measurement) some joint property of three qubits (projecting the state onto a tripartite entangled state), the less accurate some other property, local to the three qubits, become. We also show that the corresponding complementarity relations are particularly tight for particles defined on prime dimensional Hilbert spaces.
description: 4 pages, no figures
ECONOMIC RESEARCH OF INTEREST TO AGRICULTURE, 1991-1993
Creators: name: Dote, Grace
name: Dote, Grace
Publisher: name: Unknown
Year: 1994
Subjects: Teaching/Communication/Extension/Profession

description: This bibliography of Giannini Foundation members' publications, Economic Research of Interest to Agriculture was first issued on May 6, 1951, the eighty-first birthday of A.P. Giannini, and included the Giannini Foundation of Agricultural Economics members' works from 1929 through 1950. The first three issues were compiled and edited by the Giannini Foundation's first librarian, Orpha E. Cummings, 1930-1958. The issues that followed were edited by librarians, Mary Lida Eakin, 1958-1967; Virginia A. Fox, 1967-1980; and Grace Dote, 1970-2001.
Advancements in biologic therapy in eosinophilic asthma
Creators: name: Patadia, Rini
name: Casale, Thomas B.
name: Fowler, John
name: Patel, Shiven
name: Cardet, Juan Carlos
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Science Policy

description: Asthma encompasses a spectrum of phenotypes often categorized into two groups- type 2 high (T2 high) and type 2 low (T2 low). T2 high includes atopic and eosinophilic presentations whereas T2 low is non-atopic, non-eosinophilic, and often associated with neutrophilic inflammation. Eosinophilic asthma is often driven by IgE, interleukin (IL)-4, IL-5, and IL-13 and thymic stromal lymphopoietin (TSLP). This can lead to eosinophilic inflammatory responses in the airways which in turn can be used as targets for treatment. The article will focus on biologic therapies that are currently being used in eosinophilic asthma management in mainly the adult population, including clinical trials and co-morbidities that can be treated using the same biologics. A review on asthma biologics for pediatric populations has been reviewed elsewhere. Biological therapy for asthma targeting the IgE, IL-4, IL-5, IL-13, and TSLP pathways have been shown to be beneficial for the treatment of eosinophilic asthma, as exemplified in real-world studies. When choosing the right biological agent, factors such as phenotype, comorbidities, and cost effectiveness of the biologic agent must be taken into consideration.
ECONOMIC RESEARCH OF INTEREST TO AGRICULTURE, 1982-1984
Creators: name: Dote, Grace
name: Dote, Grace
Publisher: name: Unknown
Year: 1985
Subjects: Teaching/Communication/Extension/Profession

description: This bibliography of Giannini Foundation members' publications, Economic Research of Interest to Agriculture was first issued on May 6, 1951, the eighty-first birthday of A.P. Giannini, and included the Giannini Foundation of Agricultural Economics members' works from 1929 through 1950. The first three issues were compiled and edited by the Giannini Foundation's first librarian, Orpha E. Cummings, 1930-1958. The issues that followed were edited by librarians, Mary Lida Eakin, 1958-1967; Virginia A. Fox, 1967-1980; and Grace Dote, 1970-2001.
Ribbons of visible air
Creators: name: Lee, Brent
Publisher: name: University of British Columbia
Year: 2009

description: Ribbons of Visible Air is a work of about twenty minutes duration for soprano saxophone, violin, cello, piano, one percussion, and live digital sound processing. Though the work unfolds as one continuous movement, it is conceived as being in several sections, each lasting from approximately one to four minutes. The primary ideas behind the form of Ribbons of Visible Air originate in the concerto principle (with the saxophone in the role of soloist) and variation technique; these ideas influence not only the large-scale form, but also the organization of material in respect to the different instruments and the relationship of the ensemble as a whole to the electronic processing. This composition explores a number of harmonic techniques related to the harmonic series, as well as the rhythmic possibilities inherent in multiple levels of pulsation. Of particular relevance to this work is the incorporation of extended techniques of the soprano saxophone, especially the alteration of pitch and timbre through unorthodox fingering patterns.
Haze Formation on Triton
Creators: name: Ohno, Kazumasa
name: Zhang, Xi
name: Tazaki, Ryo
name: Okuzumi, Satoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The largest moon of Neptune, Triton, possess a cold and hazy atmosphere. Since the discovery of near-surface haze layer during the Voyager fly in 1989, the haze formation mechanism has not been investigated in detail. Here, we provide the first haze microphysical model on Triton. Our model solves the evolution of both size and porosity distributions of haze particles in a self-consistent manner. We simulated the formation of sphere and aggregate hazes with and without condensation of the C$_2$H$_4$ ice. The haze particles can grow into fractal aggregates with mass-equivalent sphere sizes of $\sim0.1$--$1~{\rm μm}$ and fractal dimension of $D_{\rm f} = 1.8$--$2.2$. The ice-free hazes cannot simultaneously explain both UV and visible observations of Voyager 2, while including the condensation of C$_2$H$_4$ ices provides two better solutions. For ice aggregates, the required total haze mass flux is $\sim2\times{10}^{-15}~{\rm g~{cm}^{-2}~s^{-1}}$. For the icy sphere scenario, the column integrated C$_2$H$_4$ production rate is $\sim8\times{10}^{-15}~{\rm g~{cm}^{-2}~s^{-1}}$, and the ice-free mass flux of $\sim6\times{10}^{-17}~{\rm g~{cm}^{-2}~s^{-1}}$. The UV occultation observations at short wavelength $<0.15~{\rm μm}$ may slightly favor the icy aggregates. Observations of the haze optical depth and the degree of forward scattering in UV and visible should be able to distinguish whether Triton's hazes are icy spheres or ice aggregates in future Triton missions.
description: 29 pages, 14 figures, accepted for publication in ApJ, several typos had been amended in the proof of correction
ECONOMIC RESEARCH OF INTEREST TO AGRICULTURE, 1979-1981
Creators: name: Dote, Grace
name: Dote, Grace
Publisher: name: Unknown
Year: 1982
Subjects: Teaching/Communication/Extension/Profession

description: This bibliography of Giannini Foundation members' publications, Economic Research of Interest to Agriculture was first issued on May 6, 1951, the eighty-first birthday of A.P. Giannini, and included the Giannini Foundation of Agricultural Economics members' works from 1929 through 1950. The first three issues were compiled and edited by the Giannini Foundation's first librarian, Orpha E. Cummings, 1930-1958. The issues that followed were edited by librarians, Mary Lida Eakin, 1958-1967; Virginia A. Fox, 1967-1980; and Grace Dote, 1970-2001.
An Introduction to the World of Internet Memes by Curator Kate : Guiding or Accompanying Visitors?
Creators: name: Hashem, David
name: Bönsch, Andrea
name: Ehret, Jonathan
name: Kuhlen, Torsten
Publisher: name: RWTH Aachen University
Year: 2021

description: ACM International Conference on Intelligent Virtual Agents, IVA'21, online, 14 Sep 2021 - 17 Sep 2021
ECONOMIC RESEARCH OF INTEREST TO AGRICULTURE, 1954-1956
Creators: name: Cummings, Orpha E.
name: Cummings, Orpha E.
Publisher: name: Unknown
Year: 1957
Subjects: Teaching/Communication/Extension/Profession

description: This bibliography of Giannini Foundation members' publications, Economic Research of Interest to Agriculture was first issued on May 6, 1951, the eighty-first birthday of A.P. Giannini, and included the Giannini Foundation of Agricultural Economics members' works from 1929 through 1950. The first three issues were compiled and edited by the Giannini Foundation's first librarian, Orpha E. Cummings, 1930-1958. The issues that followed were edited by librarians, Mary Lida Eakin, 1958-1967; Virginia A. Fox, 1967-1980; and Grace Dote, 1970-2001.
Entropy of Kerr-Newman black hole to all orders in the Planck length
Creators: name: Ren, Zhao
name: Li-Chun, Zhang
name: Huai-Fan, Li
name: Yue-Qin, Wu
Publisher: name: arXiv
Year: 2008
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Using the quantum statistical method, the difficulty of solving the wave equation on the background of the black hole is avoided.We directly solve the partition functions of Bose and Fermi field on the background of an axisymmetric Kerr-Newman black hole using the new equation of state density motivated by the generalized uncertainty principle in the quantum gravity. Then near the black hole horizon, we calculate entropies of Bose and Fermi field between the black hole horizon surface and the hypersurface with the same inherent radiation temperature measured by an observer at an infinite distance. In our results there are not cutoffs and little mass approximation introduced in the conventional brick-wall method. The series expansion of the black hole entropy is obtained. And this series is convergent. It provides a way for studying the quantum statistical entropy of a black hole in a non-spherical symmetric spacetime.
description: 12 pages
Assessing Euro-Med Trade Preferences: The Case of Entry Price Reduction
Creators: name: Garcia Alvarez-Coque, Jose-Maria
name: Martinez-Gomez, Victor
name: Garcia Alvarez-Coque, Jose-Maria
name: Martinez-Gomez, Victor
Publisher: name: Unknown
Year: 2007
Subjects: International Relations/Trade

description: The EU protects some of its fruits and vegetables through the entry price system. This system is implemented for “sensitive” products which often are important for the exports of Southern Mediterranean Countries (SMC) such as tomatoes, cucumbers, artichokes, courgettes, peaches and citrus fruits. In many cases, the system applies on a seasonal basis, remaining the protection for a part of the year through the “usual” tariff system. In some cases, SMC have agreed a reduction of the entry price applied for their exports to the EU. In this paper, we show a new indicator to gauge the gains accrued to the SMC in these cases and apply it to the case of Moroccan clementines.
An Evaluation of Customer Relationship Management (CRM) Practices among Agribusiness Firms
Creators: name: Torres, Antonio
name: Akridge, Jay T.
name: Gray, Allan W.
name: Boehlje, Michael
name: Widdows, Richard
name: Torres, Antonio
name: Akridge, Jay T.
name: Gray, Allan W.
name: Boehlje, Michael
name: Widdows, Richard
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: customer relationship management (CRM)
subject: marketing
subject: strategy
subject: information technology
subject: cluster analysis.

description: Customer Relationship Management (CRM) has received much attention in the business press as a management process to enhance firm performance. This research highlights differences between groups of respondents who believe their firm's CRM program is performing at a high level, as compared to those not satisfied with the performance of their CRM initiative. Cluster analysis was used to develop a taxonomy of respondents based on their perceived CRM performance. The resulting clusters are then profiled on both demographic variables as well as a core set of activities/behaviors to better understand key differences in the CRM programs of agribusinesses.
Strategic Marketing Decisions for Organic Agricultural Producers
Creators: name: Phillips, Jon C.
name: Peterson, H. Christopher
name: Phillips, Jon C.
name: Peterson, H. Christopher
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: Marketing
subject: FOS: Economics and business
subject: organic agriculture
subject: distribution channels
subject: strategic management

description: A group of organic agricultural producers facing a strategic decision is featured. If they decide to form an organization to market their produce jointly, they will have to select a distribution channel. This case presents the demand conditions, requirements, advantages, and disadvantages of different distribution channels for organic vegetables, both on a general level and as they relate to this particular group. The following channels are addressed: roadside stands, farmers' markets, distributors, retailers, restaurants, institutions, and processors. Study questions for use in an academic course or workshop are included.
Efficacy and safety of biosimilar trastuzumab (CT-P6) in routine clinical practice in the Republic of Korea: a real-world post-marketing surveillance study
Creators: name: Park, Min Ho
name: Seo, Jae Hong
name: Park, Jung Ho
name: Seong, Min-Ki
name: Park, Keon Uk
name: Kim, Min Kyoon
name: Chang, Myungchul
name: Koh, Su-Jin
name: Lee, Moon Hee
name: Lim, Seung Taek
name: Yoo, Young Bum
name: Oh, So Yeon
name: Kim, Sung Hyun
name: Ahn, Keum Young
name: Park, Tae Hong
name: Ju, Hana
name: Baek, Eric Hyungseok
name: Kim, Sinhye
name: Kim, Nahyun
name: Lee, Eunkyung
name: Kim, Tae Hyun
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Space Science
subject: Medicine
subject: Neuroscience
subject: Physiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Cancer
subject: Science Policy
subject: Mental Health
subject: Hematology
subject: Virology

description: The trastuzumab biosimilar CT-P6 is approved for human epidermal growth factor receptor 2 (HER2)–positive early breast cancer (EBC), metastatic breast cancer (MBC), and metastatic gastric cancer (MGC). The objective of this post-marketing surveillance (PMS) study was to evaluate the real-world safety and effectiveness of CT-P6 in patients with HER2-positive cancers. This open-label, observational, prospective, PMS study collected data via investigator surveys from 35 centers in the Republic of Korea (5 October 2018–4 October 2022). Eligible patients with HER2-positive EBC, MBC, or MGC started CT-P6 treatment during routine clinical practice, followed by 1-year observation. Evaluations included adverse events (AEs), adverse drug reactions (ADRs), and effectiveness. Safety was analyzed in 642 patients (494 EBC, 94 MBC, 54 MGC). Overall, 325 (50.6%) patients experienced 1316 AEs, and 550 ADRs occurred in 199 (31.0%) patients. Unexpected ADRs occurred in 62 (9.7%) patients. Unexpected ADRs and ADRs of special interest did not raise any new safety signals. Among trastuzumab-naïve patients, 34/106 (32.1%) with EBC achieved pathological complete response; 30/74 (40.5%) MBC and 24/49 (49.0%) MGC patients achieved complete or partial response. In a real-world setting, CT-P6 demonstrated safety and efficacy findings consistent with previous CT-P6 studies.
Recording of elicitation on tonal configurations
Creators: name: Gonari, Anna
name: Lionnet, Florian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: pri

description: 1 WAV file, 1 ELAN file. Words and sentences illustrating various tonal configurations, including various sequences of tonal enclitics. The consultant is a native Paicî and French speaker originally from Göièta/Goyeta, Ponérihouen municipality.
The Canadian Dairy Commission: an empirical survey on its relevance in today's civil society
Creators: name: Charlebois, Sylvain
name: Langenbacher, Wolfgang
name: Tamilia, Robert D.
name: Charlebois, Sylvain
name: Langenbacher, Wolfgang
name: Tamilia, Robert D.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Canadian Dairy Commission
subject: marketing boards
subject: Dairy industry
subject: milk products.

description: The current function of the Canadian Dairy Commission (CDC) raises important public policy issues that have implications for wealth redistribution, administrative law, and civil liberty. The CDC's purported economic relevance in Canadian society serves as a facade for a short-sighted management approach that is devoid of the rudiments of a market mechanism. In order to suggest future public policy developments, an exploratory field survey was conducted and results are presented in this paper. Although the results do not infer that Canadian consumers are discontented with dairy prices in Canada, our evidence shows that consumers know very little about the processes behind marketing milk in Canada, especially with the price setting powers of the CDC. This study indicates that future policies should address this lack of consumer awareness. As global dairy markets evolve, policies designed to protect against domestic and foreign competition will most likely become less effective. Protectionist policies can be detrimental to a country's long-term prosperity as opportunities for new products, adoption of new technologies and faster responses to consumer demands are squandered. The study's limitations and implications for practice and future research are described.
Saturn's internal structure and carbon enrichment
Creators: name: Mousis, Olivier
name: Alibert, Yann
name: Benz, Willy
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We use the clathrate hydrate trapping theory to calculate the enrichments in O, N, S, Xe, Ar and Kr compared to solar in Saturn's atmosphere. For this, we calibrate our calculations using two different carbon abundance determinations that cover the domain of measurements published in the last decades: one derived from the NASA $Kuiper$ Airborne Observatory measurements and the other obtained from the Cassini spacecraft observations. We show that these two different carbon abundances imply quite a different minimum heavy element content for Saturn. Using the Kuiper Airborne Observatory measurement for calibration, the amount of ices accreted by Saturn is found to be consistent with current interior models of this planet. On the other hand, using the Cassini measurement for calibration leads to an ice content in the planet's envelope which is higher than the one derived from the interior models. In this latter case, reconciling the interior models with the amount of C measured by the Cassini spacecraft requires that significant differential sedimentation of water and volatile species have taken place in Saturn's interior during its lifetime.
description: accepted in A&A
A NUT Charge Weak Gravity Conjecture from Dimensional Reduction
Creators: name: Cremonini, Sera
name: Jones, Callum R. T.
name: Liu, James T.
name: McPeak, Brian
name: Tang, Yuezhang
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We analyze the constraints on four-derivative corrections to 5d Einstein-Maxwell theory from the black hole Weak Gravity Conjecture (WGC). We calculate the leading corrections to the extremal mass of asymptotically flat 5d charged solutions as well as 4d Kaluza-Klein compactifications. The WGC bounds from the latter, interpreted as 4d dyonic black holes, are found to be strictly stronger. As magnetic graviphoton charge lifts to a NUT-like charge in 5d, we argue that the logic of the WGC should apply to these topological charges as well and leads to new constraints on purely gravitational theories.
description: 9 pages, 1 figure, minor corrections and clarifications
Gravitational radiation from dynamical black holes
Creators: name: Hayward, Sean A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: An effective energy tensor for gravitational radiation is identified for uniformly expanding flows of the Hawking mass-energy. It appears in an energy conservation law expressing the change in mass due to the energy densities of matter and gravitational radiation, with respect to a Killing-like vector encoding a preferred flow of time outside a black hole. In a spin-coefficient formulation, the components of the effective energy tensor can be understood as the energy densities of ingoing and outgoing, transverse and longitudinal gravitational radiation. By anchoring the flow to the trapping horizon of a black hole in a given sequence of spatial hypersurfaces, there is a locally unique flow and a measure of gravitational radiation in the strong-field regime.
description: 5 revtex4 pages. Additional comments
Rational Singularities and Rational Points
Creators: name: Blickle, Manuel
name: Esnault, Hélène
Publisher: name: arXiv
Year: 2006
Subjects: subject: Number Theory (math.NT)
subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: If $X$ is a projective, geometrically irreducible variety defined over a finite field $\F_q$, such that it is smooth and its Chow group of 0-cycles fulfills base change, i.e. $CH_0(X\times_{\F_q}\bar{\F_q(X)})=\Q$, then the second author's theorem asserts that its number of rational points satisfies $|X(\F_q)| \equiv 1$ modulo $q$. If $X$ is not smooth, this is no longer true. Indeed J. Kollár constructed an example of a rationally connected surface over $\F_q$ without any rational points. Based on the work by Berthelot-Bloch and the second author computing the slope $<1$ piece of rigid cohomology, we define a notion of Witt-rational singularities in characteristic $p>0$. The theorem is then that if $X/\F_q$ is a projective, geometrically irreducible variety, such that it has Witt-rational singularities and its Chow group of 0-cycles fulfills base change, then $|X(\F_q)| \equiv 1$ modulo $q$.
description: 12 pages
Growth-related Measures of Brand Equity Elasticity for Food Firms
Creators: name: Liu, Juan
name: Sporleder, Thomas L.
name: Liu, Juan
name: Sporleder, Thomas L.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Agribusiness
subject: brand equity
subject: brand valuation
subject: real options
subject: food firms
subject: growth option value

description: Brand names and brand equity are recognized as important intangible assets among firm managers in the global food supply chain. This analysis investigates the long-run potential of brand equity among food processors to actually create real options for a firm's management. The empirical analysis views brand equity among food processors as a real option of growth and empirically tests selected drivers that are conceptually associated with firm growth. Results indicate that brand equity has a positive effect on the growth option value of the firm, after accounting for other major drivers of firm growth. Brand equity elasticity is estimated with respect to a firm's growth value for both the industry- and firm-level. One major implication of the analysis is that managers of food firms should evaluate the efficacy of brand equity building strategies in terms of the contribution brand equity makes to the firm's growth option value. The evidence suggests that categorizing and managing advertising expenditures solely as an expense item may be too narrow from a strategic viewpoint.
Brownian motion of a charged colloid in restricted confinement
Creators: name: Avni, Y.
name: Komura, S.
name: Andelman, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: We study the Brownian motion of a charged colloid, confined between two charged walls, for small separation between the colloid and the walls. The system is embedded in an ionic solution. The combined effect of electrostatic repulsion and reduced diffusion due to hydrodynamic forces results in a specific motion in the direction perpendicular to the confining walls. The apparent diffusion coefficient at short times as well as the diffusion characteristic time are shown to follow a sigmoid curve as function of a dimensionless parameter. This parameter depends on the electrostatic properties and can be controlled by tuning the solution ionic strength. At low ionic strength, the colloid moves faster and is localized, while at high ionic strength it moves slower and explores a wider region between the walls, resulting in a larger diffusion characteristic time.
description: 10 pages, 7 figures
Dependence of electronic and optical properties on a high-frequency field for carbon nanotubes
Creators: name: Liao, Wenhu
name: Zhou, Guanghui
name: Ding, Kai-He
Publisher: name: arXiv
Year: 2008
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We study theoretically the electronic structure, transport and optical properties for a zigzag single-wall carbon nanotube connected to two normal conductor leads under the irradiation of an external electromagnetic field at low temperatures, with particular emphasis on the features of high-frequency response. Using the standard nonequilibrium Green's function techniques, we examine the time-averaged density of states, the conductivity, the dielectric function and the electron energy loss spectra for the system with photon polarization parallel with the tunneling current direction, respectively. Through some numerical examples, it is shown that the density of states is strongly dependent on the incident electron energy, the strength and frequency of the applied field. For higher electron energies in comparison with lead-nanotube coupling energy, the system conductance decreases with increasing the field strength and increases with increasing the field frequency respectively, and shows some oscillation structures. Moreover, the optical functions for the system have also a rich structure with the variation of field frequency. It may demonstrate that this transport dependence on the external field parameters can be used to give the energy spectra information of carbon nanotubes and to detect the high-frequency microwave irradiation.
description: 6 Revtex pages, 4 figures. to be appeared in JAP
Learning Mixtures of Low-Rank Models
Creators: name: Chen, Yanxi
name: Ma, Cong
name: Poor, H. Vincent
name: Chen, Yuxin
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (stat.ML)
subject: Information Theory (cs.IT)
subject: Machine Learning (cs.LG)
subject: Signal Processing (eess.SP)
subject: Statistics Theory (math.ST)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: FOS: Mathematics

description: We study the problem of learning mixtures of low-rank models, i.e. reconstructing multiple low-rank matrices from unlabelled linear measurements of each. This problem enriches two widely studied settings -- low-rank matrix sensing and mixed linear regression -- by bringing latent variables (i.e. unknown labels) and structural priors (i.e. low-rank structures) into consideration. To cope with the non-convexity issues arising from unlabelled heterogeneous data and low-complexity structure, we develop a three-stage meta-algorithm that is guaranteed to recover the unknown matrices with near-optimal sample and computational complexities under Gaussian designs. In addition, the proposed algorithm is provably stable against random noise. We complement the theoretical studies with empirical evidence that confirms the efficacy of our algorithm.
Witnessing Entanglement of EPR States With Second-Order Interference
Creators: name: Stobińska, Magdalena
name: Wódkiewicz, Krzysztof
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The separability of the continuous-variable EPR state can be tested with Hanbury-Brown and Twiss type interference. The second-order visibility of such interference can provide an experimental test of entanglement. It is shown that time-resolved interference leads to the Hong, Ou and Mandel deep, that provides a signature of quantum non-separability for pure and mixed EPR states. A Hanbury-Brown and Twiss type witness operator can be constructed to test the quantum nature of the EPR entanglement.
description: 9 pages, 5 figures
Consumer Reaction to Beef Safety Scares
Creators: name: Saghaian, Sayed H.
name: Reed, Michael R.
name: Saghaian, Sayed H.
name: Reed, Michael R.
Publisher: name: Unknown
Year: 2007
Subjects: subject: Food Consumption/Nutrition/Food Safety
subject: consumer behavior
subject: food safety
subject: beef
subject: Japan.

description: This study examines the impact of two beef safety scares on retail-level meat per capita consumption and prices in Japan. The objective is to investigate the Japanese consumer reactions to the news of FMD and BSE discoveries, as reflected in the quantity and price changes in the immediate neighborhood of each event. Better understanding of consumer reactions to beef safety scares helps the beef industry restore consumer confidence after food safety crises and provides opportunities for national-level product differentiation based on beef quality and traceability.
Flexible Pavement Design Criterion
Creators: name: Havens, James H.
Publisher: name: Kentucky Transportation Center, University of Kentucky
Year: 1968
Subjects: subject: Transportation Engineering

description: Our recent report on "Rational Analysis of Kentucky Flexible Pavement Criterion," November 1968, presented theoretical treatments of current design curves – which enabled transformation of the current curves into companion sets of curves embodying alternative proportions of bituminous concrete and dense-graded aggregate base. We are privileged now to submit additional analytical information and to offer recommendations for revising the present design criterion.
Decoherence and Full Counting Statistics in a Mach-Zehnder Interferometer
Creators: name: Forster, Heidi
name: Pilgram, Sebastian
name: Buttiker, Markus
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate the Full Counting Statistics of an electrical Mach-Zehnder interferometer penetrated by an Aharonov-Bohm flux, and in the presence of a classical fluctuating potential. Of interest is the suppression of the Aharonov-Bohm oscillations in the distribution function of the transmitted charge. For a Gaussian fluctuating field we calculate the first three cumulants. The fluctuating potential causes a modulation of the conductance leading in the third cumulant to a term cubic in voltage and to a contribution correlating modulation of current and noise. In the high voltage regime we present an approximation of the generating function.
description: 10 pages, 6 figures
Word list for oral/nasal airflow measurements
Creators: name: Pwaili, Moïse
name: Lionnet, Florian
Publisher: name: California Language Archive, University of California, Berkeley
Year: 2020
Subjects: subject: nem

description: 167 4-channel WAV files (with interlaced audio, nasal, and oral airflow), 2 WAV files (parallel recording of the word list without the oro-nasal mask), 1 PDF with the elicited word list. The 167 WAV files corresponding to the nasal/oral airflow recordings contain four channels (each with a 12 kHz sample rate, i.e. 48 kHz total): a WAV channel corresponding to the microphone recording, an LX channel (laryngograph, void in these recordings), a P1 channel (nasal airflow) and a P2 channel (oral airflow). These channels must be extracted before the files can be used.
Supercurrent decay in ballistic magnetic Josephson junctions
Creators: name: Ness, Hervé
name: Sadovskyy, Ivan A.
name: Antipov, Andrey E.
name: van Schilfgaarde, Mark
name: Lutchyn, Roman M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate transport properties of ballistic magnetic Josephson junctions and establish that suppression of supercurrent is an intrinsic property of the junctions, even in absence of disorder. By studying the role of ferromagnet thickness, magnetization, and crystal orientation we show how the supercurrent decays exponentially with thickness and identify two mechanisms responsible for the effect: (i) large exchange splitting may gap out minority or majority carriers leading to the suppression of Andreev reflection in the junction, (ii) loss of synchronization between different modes due to the significant dispersion of the quasiparticle velocity with the transverse momentum. Our results for Nb/Ni/Nb junctions are in good agreement with recent experimental studies. Our approach combines density functional theory and Bogoliubov-de Gennes model and opens a path for material composition optimization in magnetic Josephson junctions and superconducting magnetic spin valves.
description: 17 pages, 12 figures
Mappare la mascolinità. Gabriele Rigola, Homo Eroticus. Cinema, identità maschile e società italiana nella rivista Playmen, Rubbettino, Soveria Mannelli (CZ) 2021
Creators: name: Torre, Sofia
Publisher: name: Cinergie – Il Cinema e le altre Arti
Year: 2021

description: Cinergie – Il Cinema e le altre Arti, N. 20 (2021)
Error Analysis of Exponential Integrators for Nonlinear Wave-Type Equations
Creators: name: Dörich, Benjamin
Publisher: name: Karlsruher Institut für Technologie (KIT)
Year: 2021
Subjects: numerical analysis
semmilinear wave equations
quasilinear wave-type equations
semilinear evolution equations
quasilinear evolution equations
operator semigroups
exponential integrators
time integration
abstract error analysis
a priori error estimates
Maxwell equations
Kerr nonlinearity

description: This thesis is concerned with the time integration of certain classes of nonlinear evolution equations in Hilbert spaces by exponential integrators. We aim to prove error bounds which can be established by including only quantities given by a wellposedness result. In the first part, we consider semilinear wave equations and introduce a class of first- and second-order exponential schemes. A standard error analysis is not possible due to the lack of regularity. We have to employ appropriate filter functions as well as the integration by parts and summation by parts formulas in order to obtain optimal error bounds. In the second part, we propose two exponential integrators of first and second order applied to a class of quasilinear wave-type equations. By a detailed investigation of the differentiability of the right-hand side we derive error bounds in different norms. In the framework we can treat quasilinear Maxwell’s equations in full space and on a smooth domain as well as a class of quasilinear wave equations. In both parts, we include numerical examples to confirm our theoretical findings.
Arkansas Landlord Selection of Land-Leasing Contract Type and Terms
Creators: name: Rainey, Ronald L.
name: Dixon, Bruce L.
name: Ahrendsen, Bruce L.
name: Parsch, Lucas D.
name: Bierlen, Ralph W.
name: Rainey, Ronald L.
name: Dixon, Bruce L.
name: Ahrendsen, Bruce L.
name: Parsch, Lucas D.
name: Bierlen, Ralph W.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Land Economics/Use
subject: Land leasing
subject: Probit
subject: Contract
subject: Production agriculture

description: Land leasing is a major source of the land input to production agriculture. Responses from a survey of landlords leasing crop land in Arkansas are analyzed to better understand those factors motivating landlords in the type of lease they select and the terms of those leases. Probit models are estimated to determine the relative importance of variables representing credit constraint, agency problem, and risk aversion factors. Regression models then estimate the impact of site, landlord, and tenant characteristics on contract terms - the percentage of crop and cost sharing arrangements between landlord and tenant. Probit results suggest credit constraint factors influence lease-type selection. Risk aversion, managerial ability, and social capital factors are also supported. Regression models show that land and crop characteristics are significant determinants of contract terms.
Metastability and dispersive shock waves in Fermi-Pasta-Ulam system
Creators: name: Lorenzoni, Paolo
name: Paleari, Simone
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We show the relevance of the dispersive analogue of the shock waves in the FPU dynamics. In particular we give strict numerical evidences that metastable states emerging from low frequency initial excitations, are indeed constituted by dispersive shock waves travelling through the chain. Relevant characteristics of the metastable states, such as their frequency extension and their time scale of formation, are correctly obtained within this framework, using the underlying continuum model, the KdV equation.
description: 11 pages, 6 figures
Animal Disease Economic Impacts: A Survey of Literature and Typology of Research Approaches
Creators: name: Pritchett, James G.
name: Thilmany, Dawn D.
name: Johnson, Kamina K.
name: Pritchett, James G.
name: Thilmany, Dawn D.
name: Johnson, Kamina K.
Publisher: name: Unknown
Year: 2005
Subjects: subject: Livestock Production/Industries
subject: Marketing
subject: FOS: Economics and business
subject: Animal disease economics
subject: Literature review
subject: Marketing channel

description: Animal diseases such as bovine spongiform encephalopathy (BSE) are a threat to the animal product marketing sector and the broader economy. Policy makers and industry stakeholders seek a means of assessing a disease threat's economic impacts when evaluating prevention and mitigation measures. But, differences in the focus of the impact analysis (production level, market prices, welfare), level of analysis (geographically, marketing phase) and proposed policy alternatives all influence the analytical approach. This paper surveys previous research, focusing on methodological approaches and results. Drawing from past research and future economic data needs, a typology is developed to guide researchers when defining the scope and policy alternatives of various research approaches.
Dal controllo alla caduta. Tomaso Subini, La via italiana alla pornografia. Cattolicesimo, sessualità e cinema (1948-1986), Le Monnier, Firenze 2021
Creators: name: Landrini, Gabriele
Publisher: name: Cinergie – Il Cinema e le altre Arti
Year: 2021

description: Cinergie – Il Cinema e le altre Arti, N. 20 (2021)
Cosmological constraints on multi-interacting dark matter
Creators: name: Becker, Niklas
name: Hooper, Deanna C.
name: Kahlhoefer, Felix
name: Lesgourgues, Julien
name: Schöneberg, Nils
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The increasingly significant tensions within $Λ$CDM, combined with the lack of detection of dark matter (DM) in laboratory experiments, have boosted interest in non-minimal dark sectors, which are theoretically well-motivated and inspire new search strategies for DM. Here we consider, for the first time, the possibility of DM having simultaneous interactions with photons, baryons, and dark radiation (DR). We have developed a new and efficient version of the Boltzmann code CLASS that allows for one DM species to have multiple interaction channels. With this framework we reassess existing cosmological bounds on the various interaction coefficients in multi-interacting DM scenarios. We find no clear degeneracies between these different interactions and show that their cosmological effects are largely additive. We further investigate the possibility of these models to alleviate the cosmological tensions, and find that the combination of DM-photon and DM-DR interactions can at the same time reduce the $S_8$ tension (from $2.3σ$ to $1.2σ$) and the $H_0$ tension (from $4.3σ$ to $3.1σ$). The public release of our code will pave the way for the study of various rich dark sectors.
description: 41 pages, 8 figures, 5 tables. Comments are welcome
Sampling asymmetric open quantum systems for artificial neural networks
Creators: name: Kästle, Oliver
name: Carmele, Alexander
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: While established neural network approaches based on restricted Boltzmann machine architectures and Metropolis sampling methods are well suited for symmetric open quantum systems, they result in poor scalability and systematic errors for setups without symmetries of translational invariance, independent of training parameters such as the sample size. To overcome this representational limit, we present a hybrid sampling strategy which takes asymmetric properties explicitly into account, achieving fast convergence times and high scalability for asymmetric open systems, underlining the universal applicability of artificial neural networks.