cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Fabrication, Study of Optical Properties and Structure of Most Stable (CdP2)n Nanoclusters
Creators: name: Yeshchenko, O. A.
name: Dmitruk, I. M.
name: Koryakov, S. V.
name: Galak, M. P.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: CdP2 nanoclusters were fabricated by incorporation into pores of zeolite Na-X and by laser ablation. Absorption and photoluminescence (PL) spectra of CdP2 nanoclusters in zeolite were measured at the temperatures of 4.2, 77 and 293 K. Both absorption and PL spectra consist of two bands blue shifted with respect to bulk crystal. We performed the calculations aimed to find the most stable clusters in the size region up to size of the zeolite Na-X supercage. The most stable clusters are (CdP2)6 and (CdP2)8 with binding energies of 9.30 eV and 10.10 eV per (CdP2)1 formula unit respectively. Therefore, we attributed two bands observed in absorption and PL spectra to these stable clusters. The Raman spectrum of CdP2 clusters in zeolite was explained to be originated from (CdP2)6 and (CdP2)8 clusters as well. The PL spectrum of CdP2 clusters produced by laser ablation consists of the asymmetric band with low-energy tail that has been attributed to emission of both (CdP2)8 cluster and CdP2 microcrystals.
description: Accepted for publication in Physica E: Low-dimensional Systems and Nanostructures
DEMAND AND QUALITY UNCERTAINTY IN PECAN PURCHASING DECISIONS
Creators: name: Park, Timothy A.
name: Florkowski, Wojciech J.
name: Park, Timothy A.
name: Florkowski, Wojciech J.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Demand and Price Analysis
subject: generalized Heckman model
subject: pecan purchases
subject: Tobit

description: A generalized Heckman model of purchase decisions incorporating perceived consumer quality attributes, ease of purchase, and familiarity with marketing outlets as factors influencing pecan purchases is estimated. Marketing efforts that encourage consumers to expand expenditures on nut products increase both the probability of pecan purchases and the amount purchased. Consumers who use all types of nuts in a wider variety of foods tend to purchase pecans more frequently. A diverse set of marketing outlets provides consumers with convenient sources of purchasing pecans and has a significant influence on the probability of pecan purchases but not the amount of pecans purchased.
NUTRITION AND THE ECONOMICS OF SWINE MANAGEMENT
Creators: name: Boland, Michael A.
name: Foster, Kenneth A.
name: Preckel, Paul V.
name: Boland, Michael A.
name: Foster, Kenneth A.
name: Preckel, Paul V.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Livestock Production/Industries
subject: nonlinear growth modeling
subject: pigs
subject: replacement
subject: swine

description: Current methods of formulating animal rations lead to excess nutrient excretion which can potentially lead to excess manure nutrients and an increase in economic costs. These methods do not recognize the impact of diminishing returns. The objective is to simultaneously optimize feed ration composition and replacement. The results, when compared against results from a survey of feed companies, indicate that using a profit maximization rather than live weight growth maximization criterion targets nutrients to an animal's actual needs and, hence, fewer nutrients are excreted and higher returns for producers are obtained.
On hybrid states of two and three level atoms
Creators: name: Billionnet, C.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We calculate atom-photon resonances in the Wigner-Weisskopf model, admitting two photons and choosing a particular coupling function. We also present a rough description of the set of resonances in a model for a three-level atom coupled to the photon field. We give a general picture of matter-field resonances these results fit into.
description: 33 pages, 12 figures
ADVERTISING AND RETAIL PROMOTION OF WASHINGTON APPLES: A STRUCTURAL LATENT VARIABLE APPROACH TO PROMOTION EVALUATION
Creators: name: Richards, Timothy J.
name: Gao, Xiaoming
name: Patterson, Paul M.
name: Richards, Timothy J.
name: Gao, Xiaoming
name: Patterson, Paul M.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: commodity promotion
subject: demand system
subject: DYMIMIC
subject: fresh fruit
subject: Kalman filter
subject: LA/AIDS
subject: latent variables

description: "Commodity promotion" consists of many activities, each designed to contribute to a consumer's product knowledge or influence tastes. However, both knowledge and tastes are unobservable, or latent, variables influencing demand. This paper specifies a dynamic structural model of fresh fruit demand that treats promotion and other socioeconomic variables as "causal" variables influencing these latent variables. Estimating this state-space model using a Kalman filter approach provides estimates of both the system parameters and a latent variable series. The results show that these latent effects contribute positively to apple and other fruit consumption, while reducing banana consumption.
LINKAGES BETWEEN CROP INSURANCE AND PRE-HARVEST HEDGING
Creators: name: Dhuyvetter, Kevin C.
name: Kastens, Terry L.
name: Dhuyvetter, Kevin C.
name: Kastens, Terry L.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: Risk and Uncertainty
subject: crop insurance
subject: hedging
subject: revenue insurance
subject: risk management

description: The impact pre-harvest hedging and crop insurance strategies have on expected revenue and associated risk as well as how producers' risk attitudes affect optimal strategies was analyzed for Kansas wheat farms. No insurance, Catastrophic (CAT), Actual Production History (APH), and Crop Revenue Coverage (CRC) were considered. Average revenue was similar across alternatives, but APH and CRC resulted in the least income variability. Risk reduction effects of hedging were small and the advantage of CRC over APH decreases as hedging increases. This historical study provides useful information; however, if future market conditions differ significantly from the past, optimal strategies may change.
Cooperative Recombination of a Quantized High-Density Electron-Hole Plasma
Creators: name: Jho, Y. D.
name: Wang, X.
name: Kono, J.
name: Reitze, D. H.
name: Wei, X.
name: Belyanin, A. A.
name: Kocharovsky, V. V.
name: Kocharovsky, Vl. V.
name: Solomon, G. S.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigate photoluminescence from a high-density electron-hole plasma in semiconductor quantum wells created via intense femtosecond excitation in a strong perpendicular magnetic field, a fully-quantized and tunable system. At a critical magnetic field strength and excitation fluence, we observe a clear transition in the band-edge photoluminescence from omnidirectional output to a randomly directed but highly collimated beam. In addition, changes in the linewidth, carrier density, and magnetic field scaling of the PL spectral features correlate precisely with the onset of random directionality, indicative of cooperative recombination from a high density population of free carriers in a semiconductor environment.
title: The purported record of an epibiontic rhabdopleurid in the early Ordovician Fezouata biota of Morocco, with a discussion about benthic pterobranchs (Hemichordata) in the Lagerstätte
Creators: name: Maletz, Jörg
name: Gutiérrez-Marco, Juan Carlos
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Benthic graptolites
subject: Epibiontic
subject: Diversity
subject: Lagerstätten
subject: Fezouata Shale
subject: Morocco
subject: Ordovician
classificationCode: 560
subject: Paläontologie, Paläozoologie

description: The recent record of extremely rare rhabdopleurid graptolites with a supposed epibiontic life style in the Fezouata biota has to be rejected, as the specimens indicate an epibenthic growth on a shell fragment lying on the sea bottom. In absence of morphological data that support a truly colonial development on these encrusters, it cannot be ruled out that the specimens may alternatively represent the pseudo-colonial tubaria of cephalodiscid-like pterobranchs. The interpretation of the presence of benthic graptolites (class Pterobranchia; subclass Graptolithina) from the Fezouata Shale biota of Morocco provides us with some serious problems. Their life style as benthic or epibenthic organisms living on firm substrates and hardgrounds makes it difficult for them to be preserved in these highly fossiliferous, originally ‘soupy’ soft sediments of the Fezouata Shale, unless they are transported and covered by sediment subsequently. The graptolite record of the Fezouata biota appears to be restricted to planktic forms of Graptoloidea: the review of the few benthic dendroids so far cited for the Lagerstätte resulted in the identification of the rare planktic dendroid genus Calyxdendrum. The problematic species Webbyites felix may represent a hydrozoan (Cnidaria) rather than a benthic graptolite.
Establishing the impact of powerful AGN on their host galaxies
Creators: name: Harrison, C. M.
name: Molyneux, S. J.
name: Scholtz, J.
name: Jarvis, M. E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: Establishing the role of active galactic nuclei (AGN) during the formation of galaxies remains one of the greatest challenges of galaxy formation theory. Towards addressing this, we summarise our recent work investigating: (1) the physical drivers of ionised outflows and (2) observational signatures of the impact by jets/outflows on star formation and molecular gas content in AGN host galaxies. We confirm a connection between radio emission and extreme ionised gas kinematics in AGN hosts. Emission-line selected AGN are significantly more likely to exhibit ionised outflows (as traced by the [O III] emission line) if the projected linear extent of the radio emission is confined within the spectroscopic aperture. Follow-up high resolution radio observations and integral field spectroscopy of 10 luminous Type 2 AGN reveal moderate power, young (or frustrated) jets interacting with the interstellar medium. We find that these sources live in highly star forming and gas rich galaxies. Additionally, by combining ALMA-derived dust maps with integral field spectroscopy for eight host galaxies of z~2 X-ray AGN, we show that H-alpha emission is an unreliable tracer of star formation. For the five targets with ionised outflows we find no dramatic in-situ shut down of the star formation. Across both of these studies we find that if these AGN do have a negative impact upon their host galaxies, it must be happening on small (unresolved) spatial scales and/or an observable galaxy-wide impact has yet to occur.
description: Invited Contribution to IAU Symposium 359 (T. Storchi-Bergmann, R. Overzier, W. Forman & R. Riffel, eds.)
Resettlement is Burial, Resistance is Resurrection: Contextualizing 'This is Not a Burial, It’s a Resurrection'
Creators: name: Gokul KS
Publisher: name: figshare
Year: 2021
Subjects: subject: 190299 Film, Television and Digital Media not elsewhere classified
subject: FOS: Arts (arts, history of arts, performing arts, music)

description: The article analyses the text and context of the film "This is not a Burial, It's a Resurrection."
VALUATION OF WATER QUALITY IN LIVESTOCK REGIONS: AN APPLICATION TO RURAL WATERSHEDS IN IOWA
Creators: name: Hurley, Terrance M.
name: Otto, Daniel M.
name: Holtkamp, Janice
name: Hurley, Terrance M.
name: Otto, Daniel M.
name: Holtkamp, Janice
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: Livestock Production/Industries
subject: contingent valuation
subject: livestock production
subject: nitrate contamination
subject: rural development
subject: water quality

description: This paper investigates rural residents' perceptions of the risk to water quality from large confinement facilities and their willingness to pay to delay nitrate contamination from these facilities. Rural residents are concerned about the environmental impact of confinement facilities and are willing to pay as much as $82 annually to delay nitrate contamination in their water for 20 years. These contingent valuation results are consistent with the result obtained in similar studies that used hedonic valuation methods.
Cosmogenic activation of Germanium and its reduction for low background experiments
Creators: name: Barabanov, I.
name: Belogurov, S.
name: Bezrukov, L.
name: Denisov, A.
name: Kornoukhov, V.
name: Sobolevsky, N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Production of $^{60}$Co and $^{68}$Ge from stable isotopes of Germanium by nuclear active component of cosmic rays is a principal background source for a new generation of $^{76}$Ge double beta decay experiments like GERDA and Majorana. The biggest amount of cosmogenic activity is expected to be produced during transportation of either enriched material or already grown crystal. In this letter properties and feasibility of a movable iron shield are discussed. Activation reduction factor of about 10 is predicted by simulations with SHIELD code for a simple cylindrical configuration. It is sufficient for GERDA Phase II background requirements. Possibility of further increase of reduction factor and physical limitations are considered. Importance of activation reduction during Germanium purification and detector manufacturing is emphasized.
description: 10 pages, 3 tables, 6 figures
ACCOUNTING FOR SPATIAL CHARACTERISTICS OF WATERSHEDS IN EVALUATING WATER POLLUTION ABATEMENT POLICIES
Creators: name: Qiu, Zeyuan
name: Prato, Anthony A.
name: Qiu, Zeyuan
name: Prato, Anthony A.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Environmental Economics and Policy
subject: atrazine
subject: environmental policy
subject: nonpoint pollution
subject: simulation
subject: watershed management
subject: water quality

description: This study evaluates three agricultural nonpoint pollution abatement policies: regulating the spatial pattern of agricultural activities, ambient tax, and abatement tax/subsidy. All three policies incorporate spatial characteristics of agricultural emission loading and movement for an agricultural watershed in the Midwest. The effects of spatial variation in natural conditions and landscape features on agricultural emissions and crop yield are evaluated using a newly developed biophysical simulation model and experimental data. While the policies are equally cost effective in reducing agricultural nonpoint source pollution, their implementation feasibility is quite different.
Collective dynamics of active Brownian particles in three spatial dimensions: a predictive field theory
Creators: name: Bickmann, Jens
name: Wittkowski, Raphael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the nonequilibrium dynamics of spherical active Brownian particles in three spatial dimensions that interact via a pair potential. The investigation is based on a predictive local field theory that is derived by a rigorous coarse-graining starting from the overdamped Langevin dynamics of the particles. This field theory is highly accurate and applicable even for the highest activities. It includes configurational order parameters and derivatives up to infinite orders. We present also three finite reduced models that result from the general field theory by suitable approximations and are easier to apply. Furthermore, we use the general field theory and the simplest one of the reduced models to derive analytic expressions for the density-dependent mean swimming speed and the spinodal corresponding to the onset of motility-induced phase separation of the particles, respectively. Both of these results show a good agreement with recent findings described in the literature. The analytic result for the spinodal yields also a prediction for the associated critical point whose position has not been determined before.
description: 16 pages, 3 figures, 3 tables
Autonomous and cooperative design of the monitor positions for a team of UAVs to maximize the quantity and quality of detected objects
Creators: name: Koutras, Dimitrios I.
name: Kapoutsis, Athanasios Ch.
name: Kosmatopoulos, Elias B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Robotics (cs.RO)
subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This paper tackles the problem of positioning a swarm of UAVs inside a completely unknown terrain, having as objective to maximize the overall situational awareness. The situational awareness is expressed by the number and quality of unique objects of interest, inside the UAVs' fields of view. YOLOv3 and a system to identify duplicate objects of interest were employed to assign a single score to each UAVs' configuration. Then, a novel navigation algorithm, capable of optimizing the previously defined score, without taking into consideration the dynamics of either UAVs or environment, is proposed. A cornerstone of the proposed approach is that it shares the same convergence characteristics as the block coordinate descent (BCD) family of approaches. The effectiveness and performance of the proposed navigation scheme were evaluated utilizing a series of experiments inside the AirSim simulator. The experimental evaluation indicates that the proposed navigation algorithm was able to consistently navigate the swarm of UAVs to "strategic" monitoring positions and also adapt to the different number of swarm sizes. Source code is available at https://github.com/dimikout3/ConvCAOAirSim.
description: 8 pages, 8 figures
Raw mass spectrometry data of proteome
Creators: name: Touming Liu
Publisher: name: figshare
Year: 2021
Subjects: subject: 60109 Proteomics and Intermolecular Interactions (excl. Medical Proteomics)
subject: FOS: Biological sciences

description: According to a previous study on the microscopic examination of stem barks in ramie, bast fibers from different parts of stem bark showed distinct differences at the developmental level: specifically, the barks in the top part of stem (TPS) did not initiate fiber growth, whereas barks in the middle part of stem (MPS) had a large number of fibers with thickening secondary walls. These datasets represent the raw UHPLC spectra for proteome of ramie TPS and MPS.
FACTORS AFFECTING THE ADOPTION OF VALUE-ADDED PRODUCTION ON COW-CALF FARMS
Creators: name: Popp, Michael P.
name: Faminow, Merle D.
name: Parsch, Lucas D.
name: Popp, Michael P.
name: Faminow, Merle D.
name: Parsch, Lucas D.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Livestock Production/Industries
subject: backgrounding
subject: cow-calf production
subject: production control vs. marketing
subject: risk/return relationship
subject: technology adoption

description: Factors that affect the decision to feed or sell calves at weaning are analyzed for Arkansas cow-calf operators. A discrete choice logit model is used to analyze the adoption of value-added cattle production. Farm size, human capital, perception of risk/returns and enterprise diversification are hypothesized to explain this decision. Regional factors and land quality are also accounted for. Operator perceptions towards risk, profitability and facilities were important. Production control and attention to marketing were also significant, but farm size and scale of cattle production had a minimal impact. Effects of human capital and off-farm labor opportunities need further investigation.
Non-Gaussianity in the WMAP data using the peak-peak correlation function
Creators: name: Tojeiro, R.
name: Castro, P. G.
name: Heavens, A. F.
name: Gupta, S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a search for non-Gaussianity in the WMAP first-year data using the two-point correlation function of maxima and minima in the temperature map. We find evidence for non-Gaussianity on large scales, whose origin appears to be associated with unsubstracted foregrounds, but which is not entirely clear. The signal appears to be associated most strongly with cold spots, and is more pronounced in the Southern galactic hemisphere. Removal of the region of sky near the galactic plane, or filtering out large-scale modes removes the signal. Analysis of individual frequency maps shows strongest signal in the 41GHz Q band. A study of difference maps tests the hypothesis that the non-Gaussianity is due to residual foregrounds and noise, but shows no significant detection. We suggest that the detection is due to large-scale residual foregrounds affecting more than one frequency band, but a primordial contribution from the Cosmic Microwave Background cannot be excluded.
description: 12 pages, 17 figures; replaced by accepted version for publication in MNRAS; some clarifications and references added and some figures changed; basic conclusions unchanged
Physics of the interior of a spherical, charged black hole with a scalar field
Creators: name: Hansen, Jakob
name: Khokhlov, Alexei
name: Novikov, Igor
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We analyse the physics of nonlinear gravitational processes inside a spherical charged black hole perturbed by a self-gravitating massless scalar field. For this purpose we created an appropriate numerical code. Throughout the paper, in addition to investigation of the properties of the mathematical singularities where some curvature scalars are equal to infinity, we analyse the properties of the physical singularities where the Kretschmann curvature scalar is equal to the planckian value. Using a homogeneous approximation we analyse the properties of the spacetime near a spacelike singularity in spacetimes influenced by different matter contents namely a scalar field, pressureless dust and matter with ultrarelativistic isotropic pressure. We also carry out full nonlinear analyses of the scalar field and geometry of spacetime inside black holes by means of an appropriate numerical code with adaptive mesh refinement capabilities. We use this code to investigate the nonlinear effects of gravitational focusing, mass inflation, matter squeeze, and these effects dependence on the initial boundary conditions. It is demonstrated that the position of the physical singularity inside a black hole is quite different from the positions of the mathematical singularities. In the case of the existence of a strong outgoing flux of the scalar field inside a black hole it is possible to have the existence of two null singularities and one central $r=0$ singularity simultaneously.
ESTIMATING MARKET POWER AND PRICING CONDUCT IN A PRODUCT-DIFFERENTIATED OLIGOPOLY: THE CASE OF THE DOMESTIC SPAGHETTI SAUCE INDUSTRY
Creators: name: Vickner, Steven S.
name: Davies, Stephen P.
name: Vickner, Steven S.
name: Davies, Stephen P.
Publisher: name: Unknown
Year: 1999
Subjects: subject: Marketing
subject: FOS: Economics and business
subject: market power
subject: oligopoly
subject: pricing conduct
subject: product differentiation

description: This paper develops a simultaneous-equations panel data econometric model to obtain point estimates of market power and pricing conduct in a representative product-differentiated, oligopolistic food market. The importance of this class of markets is recognized given its prevalence in the food and fiber system, especially for final consumer food products. The $1.3 billion domestic spaghetti sauce industry is featured. Although the results indicate firms exert limited market power, a portion of this power is derived from tacit price collusion. A higher degree of price collusion was found among brands within a market segment than between segments.
Freely falling bodies in a standing-wave spacetime
Creators: name: Szybka, Sebastian J.
name: Naqvi, Syed U.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences
subject: 83C15, 83C35

description: We study the motion of free masses subject to the influence of standing gravitational waves in the polarized Gowdy cosmology with a three-torus topology. We show that antinodes attract freely falling particles and we trace the velocity memory effect.
description: 23 pages, 8 figures; minor changes to match published version
Coenen, Lothar / Beyreuther, Erich / u.a, Theologisches Begriffslexikon zum Neuen Testament
Creators: name: Schulz, Otmar
Publisher: name: Ökumenische Rundschau
Year: 2025

description: Ökumenische Rundschau, Bd. 16 Nr. 3 (1967): Ökumenische Rundschau, Band 16, Heft 3
Misrecognized materialists : social movements in Canadian constitutional politics, 1938-1992
Creators: name: James, Matt
Publisher: name: University of British Columbia
Year: 2009

description: Although Ronald Inglehart's New Politics theory has attracted criticism, its influential distinction between materialist and postmaterialist values tends to go unquestioned. The influence of this distinction is particularly apparent when analysts interpret the "new" social movement emphasis on esteem and belonging as a "postmaterialist" departure from a traditional, or "materialist" focus on security. This way of understanding contemporary feminist and ethnocultural-minority movements is misleading because it rests on a onedimensional view of esteem and belonging. By treating esteem and belonging as expressive, which is to say as purely aesthetic or psychological goods, New Politics obscures the instrumental significance of esteem and belonging for movements that represent traditionally, marginalized constituencies. This work undertakes a qualitative study of the participation of national socialmovement organizations, "old" and "new," in Canadian constitutional politics. The analysis is based on these actors' presentations to parliamentary hearings and royal commissions on major constitution-related issues between the years 1938 and 1992. Above all, the study illustrates what New Politics theory neglects: the instrumental role of social esteem and civic belonging as bases of voice and self-defence. I argue that attending to this role can help analysts to understand better the postwar politics of recognition. The work develops this argument in three major ways. First, I demonstrate the instrumental importance of esteem and belonging for the mid-century traditional left. Second, I show that problems of misrecognition and disesteem presented feminists and ethnocultural minorities with severe difficulties in garnering a meaningful hearing for their security needs. Third, I analyze the discursive ways in which postwar "new" movement participants came to pursue forms of respect that had proved elusive in the past. The work's overall conclusion is this: the material nature of the politics of recognition is demonstrated by the extent to which increased esteem and belonging for traditionally disrespected groups has been paralleled by an expanded menu of recognized security concerns. The study's major message follows from this conclusion: because struggles over esteem and belonging have crucial material stakes, they should not be contrasted a priori with struggles that may appear to target questions of security more directly.
Worpitzky-compatible subarrangements of braid arrangements and cocomparability graphs
Creators: name: Tran, Tan Nhat
name: Tsuchiya, Akiyoshi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: Primary: 05C75, 17B22, Secondary: 52C35, 05C31

description: The class of Worpitzky-compatible subarrangements of a Weyl arrangement together with an associated Eulerian polynomial was recently introduced by Ashraf, Yoshinaga and the first author, which brings the characteristic and Ehrhart quasi-polynomials into one formula. The subarrangements of the braid arrangement, the Weyl arrangement of type $A$, are known as the graphic arrangements. We prove that the Worpitzky-compatible graphic arrangements are characterized by cocomparability graphs. Our main result yields new formulas for the chromatic and graphic Eulerian polynomials of cocomparability graphs.
description: 11 pages, comments are welcome!
Entanglement-Assisted Quantum Communication Beating the Quantum Singleton Bound
Creators: name: Grassl, Markus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: Information Theory (cs.IT)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences

description: Brun, Devetak, and Hsieh [Science 314, 436 (2006)] demonstrated that pre-shared entanglement between sender and receiver enables quantum communication protocols that have better parameters than schemes without the assistance of entanglement. Subsequently, the same authors derived a version of the so-called quantum Singleton bound that relates the parameters of the entanglement-assisted quantum-error correcting codes proposed by them. We present a new entanglement-assisted quantum communication scheme with parameters violating this bound in certain ranges.
Characterization of multiqubit pure-state entanglement
Creators: name: Chen, Zeqian
name: Xu, Quanhua
Publisher: name: arXiv
Year: 2005
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: A necessary and sufficient entanglement criterion based on variances of Mermin-Klyshko's Bell operators is proved for multiqubit pure states. Contrary to Bell's inequalities, entangled pure states strictly satisfy a quadratic inequality but product ones can attain the equality under some local unitary transformations, which can be obtained by solving a quadratic maximum problem. This presents a characterization of multiqubit pure-state entanglement.
description: 3 pages
Fluctuations of an evaporating black hole from back reaction of its Hawking radiation: Questioning a premise in earlier work
Creators: name: Hu, B. L.
name: Roura, Albert
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: This paper delineates the first steps in a systematic quantitative study of the spacetime fluctuations induced by quantum fields in an evaporating black hole. We explain how the stochastic gravity formalism can be a useful tool for that purpose within a low-energy effective field theory approach to quantum gravity. As an explicit example we apply it to the study of the spherically-symmetric sector of metric perturbations around an evaporating black hole background geometry. For macroscopic black holes we find that those fluctuations grow and eventually become important when considering sufficiently long periods of time (of the order of the evaporation time), but well before the Planckian regime is reached. In addition, the assumption of a simple correlation between the fluctuations of the energy flux crossing the horizon and far from it, which was made in earlier work on spherically-symmetric induced fluctuations, is carefully analyzed and found to be invalid. Our analysis suggests the existence of an infinite amplitude for the fluctuations of the horizon as a three-dimensional hypersurface. We emphasize the need for understanding and designing operational ways of probing quantum metric fluctuations near the horizon and extracting physically meaningful information.
description: 10 pages, REVTeX; minor changes, a few references added and a brief discussion of their relevance included. To appear in the proceedings of the 10th Peyresq meeting. Dedicated to Rafael Sorkin on the occasion of his 60th birthday
Exact results for the one-dimensional many-body problem with contact interaction: Including a tunable impurity
Creators: name: Caudrelier, V.
name: Crampe, N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: The one-dimensional problem of $N$ particles with contact interaction in the presence of a tunable transmitting and reflecting impurity is investigated along the lines of the coordinate Bethe ansatz. As a result, the system is shown to be exactly solvable by determining the eigenfunctions and the energy spectrum. The latter is given by the solutions of the Bethe ansatz equations which we establish for different boundary conditions in the presence of the impurity. These impurity Bethe equations contain as special cases well-known Bethe equations for systems on the half-line. We briefly study them on their own through the toy-examples of one and two particles. It turns out that the impurity can be tuned to lift degeneracies in the energies and can create bound states when it is sufficiently attractive. The example of an impurity sitting at the center of a box and breaking parity invariance shows that such an impurity can be used to confine asymmetrically a stationary state. This could have interesting applications in condensed matter physics.
description: 20 pages, 5 figures, version accepted for publication: some typos corrected, references and comments added
Differential Form of the Skornyakov--Ter-Martirosyan Equations
Creators: name: Pen'kov, F. M.
name: Sandhas, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The Skornyakov--Ter-Martirosyan three-boson integral equations in momentum space are transformed into differential equations. This allows us to take into account quite directly the Danilov condition providing self-adjointness of the underlying three-body Hamiltonian with zero-range pair interactions. For the helium trimer the numerical solutions of the resulting differential equations are compared with those of the Faddeev-type AGS equations.
description: 4 pages, 2 figures
Contrast Specific Propensity Scores
Creators: name: Han, Shasha
name: Rubin, Donald
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Basic propensity score methodology is designed to balance multivariate pre-treatment covariates when comparing one active treatment with one control treatment. Practical settings often involve comparing more than two treatments, where more complicated contrasts than the basic treatment-control one,(1,-1), are relevant. Here, we propose the use of contrast-specific propensity scores (CSPS). CSPS allow the creation of treatment groups of units that are balanced with respect to bifurcations of the specified contrasts and the multivariate space spanned by them.
Search for Higgs and New Phenomena at Colliders
Creators: name: Lammel, Stephan
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The present status of searches for the Higgs boson(s) and new phenomena is reviewed. The focus is on analyses and results from the current runs of the HERA and Tevatron experiments. The LEP experiments have released their final combined MSSM Higgs results for this conference. Also included are results from sensitivity studies of the LHC experiments and lepton flavour violating searches from the B factories, KEKB and PEP-II.
description: XXII International Symposium on Lepton-Photon Interactions at High Energy (11 pages, 16 figures, 2 tables)
Density Matrix Renormalization Group Study of the Disorder Line in the Quantum ANNNI Model
Creators: name: Beccaria, Matteo
name: Campostrini, Massimo
name: Feo, Alessandra
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: We apply Density Matrix Renormalization Group methods to study the phase diagram of the quantum ANNNI model in the region of low frustration where the ferromagnetic coupling is larger than the next-nearest-neighbor antiferromagnetic one. By Finite Size Scaling on lattices with up to 80 sites we locate precisely the transition line from the ferromagnetic phase to a paramagnetic phase without spatial modulation. We then measure and analyze the spin-spin correlation function in order to determine the disorder transition line where a modulation appears. We give strong numerical support to the conjecture that the Peschel-Emery one-dimensional line actually coincides with the disorder line. We also show that the critical exponent governing the vanishing of the modulation parameter at the disorder transition is $β_q = 1/2$.
description: 4 pages, 5 eps figures
Sfermion decays into singlets and singlinos in the NMSSM
Creators: name: Kraml, S.
name: Porod, W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We investigate how the addition of the singlet Higgs field in the NMSSM changes the sfermion branching ratios as compared to the MSSM. We concentrate in particular on the third generation, discussing decays of the heavier stop, sbottom or stau into the lighter mass eigenstate plus a scalar or pseudoscalar singlet Higgs. We also analyse stop, sbottom and stau decays into singlinos. It turns out that the branching ratios of these decays can be large, markedly influencing the sfermion phenomenology in the NMSSM. Moreover, we consider decays of first and second generation sfermions into singlinos.
description: 10 pages, 4 figures; a few additional remarks on the model, version to be published
Moduli Stabilization with Long Winding Strings
Creators: name: Cheung, Yeuk-Kwan E.
name: Watson, Scott
name: Brandenberger, Robert
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Stabilizing all of the modulus fields coming from compactifications of string theory on internal manifolds is one of the outstanding challenges for string cosmology. Here, in a simple example of toroidal compactification, we study the dynamics of the moduli fields corresponding to the size and shape of the torus along with the ambient flux and long strings winding both internal directions. It is known that a string gas containing states with non-vanishing winding and momentum number in one internal direction can stabilize the radius of this internal circle to be at self-dual radius. We show that a gas of long strings winding all internal directions can stabilize all moduli, except the dilaton which is stabilized by hand, in this simple example.
description: title changed, improved presentation; reference added. 18 pages, JHEP style
A stochastic perturbation of inviscid flows
Creators: name: Iyer, Gautam
Publisher: name: arXiv
Year: 2005
Subjects: subject: Analysis of PDEs (math.AP)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 60K40, 76B03, 76D05

description: We prove existence and regularity of the stochastic flows used in the stochastic Lagrangian formulation of the incompressible Navier-Stokes equations (with periodic boundary conditions), and consequently obtain a $\holderspace{k}α$ local existence result for the Navier-Stokes equations. Our estimates are independent of viscosity, allowing us to consider the inviscid limit. We show that as $ν\to 0$, solutions of the stochastic Lagrangian formulation (with periodic boundary conditions) converge to solutions of the Euler equations at the rate of $O(\sqrt{νt})$.
description: 13 pages, no figures.
Aname mariala Wilson & Harvey & Simmons & Rix 2025
Creators: name: Wilson, Jeremy D.
name: Harvey, Mark S.
name: Simmons, Leigh W.
name: Rix, Michael G.
Publisher: name: Zenodo
Year: 2025
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Arachnida
Araneae
Anamidae
Aname
Aname mariala

description: Aname mariala -complex
Figs 4C, 13, 99–100
Composition
The mariala- complex includes two described species: A. albicula sp. nov. and A. mariala sp. nov.
description: Published as part of Wilson, Jeremy D., Harvey, Mark S., Simmons, Leigh W. & Rix, Michael G., 2025, An integrative systematic revision of the wishbone spiders (Araneae: Anamidae: Aname L. Koch, 1873) of subtropical and tropical eastern Australia, with the description of 55 new species, pp. 1-298 in European Journal of Taxonomy 985 on page 155, DOI: 10.5852/ejt.2025.985.2845, http://zenodo.org/record/15169471
Effondrement, spectre et propriétés diophantiennes des flots riemanniens
Creators: name: Jammes, Pierre
Publisher: name: arXiv
Year: 2005
Subjects: subject: Differential Geometry (math.DG)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 58J50; 58C40; 53C12

description: Let F be a riemannian flow on a closed manifold M. We study the behavior of the first eigenvalues of the Hodge Laplacian acting on differential forms under adiabatic collapsing of the flow. We show that the number of small eigenvalues is related to the basic cohomology of F, and give spectral criteria for the vanishing of the Álvarez class and the Euler class of F. We also define a diophantine invariant of the flow wich is related to the asymptotical behavior of the small eigenvalues. An appendix is devoted to arithmetic properties of riemannian flows.
description: 36 pages, 2 figures, in french (english summary). v3: minor corrections
BFT Protocol Forensics
Creators: name: Sheng, Peiyao
name: Wang, Gerui
name: Nayak, Kartik
name: Kannan, Sreeram
name: Viswanath, Pramod
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cryptography and Security (cs.CR)
subject: FOS: Computer and information sciences

description: Byzantine fault-tolerant (BFT) protocols allow a group of replicas to come to a consensus even when some of the replicas are Byzantine faulty. There exist multiple BFT protocols to securely tolerate an optimal number of faults $t$ under different network settings. However, if the number of faults $f$ exceeds $t$ then security could be violated. In this paper we mathematically formalize the study of forensic support of BFT protocols: we aim to identify (with cryptographic integrity) as many of the malicious replicas as possible and in as a distributed manner as possible. Our main result is that forensic support of BFT protocols depends heavily on minor implementation details that do not affect the protocol's security or complexity. Focusing on popular BFT protocols (PBFT, HotStuff, Algorand) we exactly characterize their forensic support, showing that there exist minor variants of each protocol for which the forensic supports vary widely. We show strong forensic support capability of LibraBFT, the consensus protocol of Diem cryptocurrency; our lightweight forensic module implemented on a Diem client is open-sourced and is under active consideration for deployment in Diem. Finally, we show that all secure BFT protocols designed for $2t+1$ replicas communicating over a synchronous network forensic support are inherently nonexistent; this impossibility result holds for all BFT protocols and even if one has access to the states of all replicas (including Byzantine ones).
Supplementary Figures and tables.pptx
Creators: name: Xiaocheng Yu
name: Qiulin Qin
name: Wu, Xia
name: Dandan Li
name: Shengming Yang
Publisher: name: figshare
Year: 2020
Subjects: subject: 60705 Plant Physiology
subject: FOS: Biological sciences
subject: Plant Biology

description: Supplementary data for the G3 manuscript
title: Advancing skin model development: A focus on a self-assembled, induced pluripotent stem cell-derived, xeno-free approach
Creators: name: Dubau, Marla
name: Tripetchr, Tarada
name: Mahmoud, Lava
name: Kral, Vivian
name: Kleuser, Burkhard
Publisher: name: Freie Universität Berlin
Year: 2024
Subjects: subject: Hair-follicle derived cells
subject: reprogramming
subject: induced pluripotent stem cells
subject: keratinocytes
subject: fibroblasts
subject: self-assembled skin model
subject: xeno-free approach
classificationCode: 570
subject: Biowissenschaften; Biologie

description: The demand for skin models as alternatives to animal testing has grown due to ethical concerns and the need for accurate substance evaluation. These alternatives, known as New Approach Methodologies (NAMs), are increasingly used for regulatory decisions. Current skin models from primary human cells often rely on bovine collagen, raising ethical issues. This study explores self-assembled skin models (SASM) as a new method, utilizing hair follicle-derived keratinocytes reprogrammed into induced pluripotent stem cells (iPSC) and differentiated into fibroblasts and keratinocytes. The model relies on the ability of fibroblasts to secrete collagen to produce a xeno-free dermal layer and on the differentiation of keratinocytes to create a functional epidermal layer. These layers exhibited confirmed metabolic activity and the capability to withstand test substances. The successful development of SASM underscores the significance of accurate alternatives in dermatological research, providing an ethical and reliable option for substance evaluation and regulatory testing.
Probing P- and CP-violation in dark matter interactions
Creators: name: Catena, Riccardo
name: Hagel, Joakim
name: Yaguna, Carlos E.
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Discrete symmetries played a central role in elucidating the structure of the weak interactions, and they will probably be equally crucial regarding the interactions of the dark matter (DM) particle -- whose nature remains elusive. In this work we show that signals in future direct detection experiments can be used to test, in a model-independent way, for P- and CP-violation in DM-nucleus interactions. The analysis is performed within the most general effective theory for non-relativistic spin-0 DM-nucleus interactions mediated by the exchange of a heavy particle. Assuming an idealised xenon detector, we calculate the expected number of DM signal events required to reject P and CP invariant DM-nucleus interactions. For a DM mass of 30 GeV (or higher), this number lies between about 10 and 300 DM signal events, depending on how P and CP invariance are modeled. Future direct detection experiments, therefore, have the potential to reveal P- and CP-violation in DM interactions, making a decisive step toward the identification of the DM particle.
description: 16 pages, 5 figures