cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
title: A simple closed-form analytical model for the column buckling of omega-stinger-stiffened panels with periodic boundary conditions
Creators: name: Schilling, Jakob C.
name: Mittelstedt, Christian
Publisher: name: Elsevier
Year: 2020

description: During the preliminary design of stiffened panels, the stability behaviour is critical and both buckling modes, global and local, have to be considered in order to avoid panel configurations in which the minimum stiffness of the stringers is not achieved. In the present work, a new simple computational model is presented that computes the critical column buckling load of an omega-stringer-stiffened panel with periodic boundary conditions. This is achieved by obtaining the effective stiffness properties for an equivalent composite column. The model is able to predict column buckling conservatively as numerical studies show and can easily be used, e.g. as a constraint for optimization studies.
Modeling of the electronic state of the High-Temperature Superconductor LaCuO: Phonon dynamics and charge response
Creators: name: Falter, Claus
name: Bauer, Thomas
name: Schnetgoeke, Frank
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: A modeling of the normal state of the p-doped high-temperature superconductors (HTSC's) is presented. This is achieved starting from a more conventional metallic phase for optimal- and overdoping and passing via the underdoped to the insulating state by consecutive orbital selective compressibility-incompressibility transitions in terms of sum rules for the charge response. The modeling is substantiated by corresponding phonon calculations. Extending investigations of the full dispersion and in particular of the strongly doping dependent anomalous phonon modes in LaCuO, which so far underpin our treatment of the density response of the electrons in the p-doped HTSC's, gives additional support for the modeling of the electronic state, compares well with recent experimental data and predicts the dispersion for the overdoped regime. Moreover, phonon densities of states have been calculated and compared for the insulating, underdoped, optimally doped and overdoped state of LaCuO. From our modeling of the normal state a consistent picture of the superconducting phase also can be extracted qualitatively pointing in the underdoped regime to a phase ordering transition. On the other hand, the modeling of the optimal and overdoped state is consistent with a quasi-particle picture with a well defined Fermi surface. Thus, in the latter case a Fermi surface instability with an evolution of pairs of well defined quasiparticles is possible and can lead to a BCS-type ordering. So, it is tempting to speculate that optimal $T_C$ in the HTSC's marks a crossover region between these two forms of ordering.
description: 18 RevTex pages, 10 figures, revised version, references updated, accepted for publication in Physical Review B
Examining Factors Affecting Population Change in the Southern United States: An Ongoing Case Study
Creators: name: Hill, Anquinette
name: Gyawali, Buddhi Raj
name: Banerjee, Swagata (Ban)
name: Hill, Anquinette
name: Gyawali, Buddhi Raj
name: Banerjee, Swagata (Ban)
Publisher: name: Unknown
Year: 2010
Subjects: subject: Community/Rural/Urban Development
subject: Labor and Human Capital
subject: African Americans
subject: Black Belt
subject: Census
subject: population change
subject: Rural rebound
subject: Urban Sprawl
subject: Southern

description: Urban sprawl and rural rebound are major foci of recent regional economic studies. Using 1980 and 2000 Census data from 11 southern states, binary logit regressions of population changes in rural-and-metropolitan counties and Black Belt-and-non-Black Belt counties reveal education, poverty, employment, and age differences are related to population changes.
A triality pattern in entanglement theory
Creators: name: Cariello, Daniel
Publisher: name: arXiv
Year: 2022
Subjects: subject: Quantum Physics (quant-ph)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: In this work, we present new connections between three types of quantum states: positive under partial transpose states, symmetric with positive coefficients states and invariant under realignment states. First, we obtain a common upper bound for their spectral radii and a result on their filter normal forms. Then we prove the existence of a lower bound for their ranks and the fact that whenever this bound is attained the states are separable. These connections add new evidence to the pattern that for every proven result for one of these types, there are counterparts for the other two, which is a potential source of information for entanglement theory.
description: Some typos and a reference error were fixed
Lypha dubia
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Lypha
Lypha dubia

description: Lypha dubia (FALLÉN, 1810)
Bgld, Jois, Zeilerberg, 26.3.17.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 796, DOI: 10.5281/zenodo.4004374
Weak and Strong Versions of Effective Transfinite Recursion
Creators: name: Uftring, Patrick
Publisher: name: arXiv
Year: 2022
Subjects: subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03B30, 03F15, 03F35

description: Working in the context of reverse mathematics, we give a fine-grained characterization result on the strength of two possible definitions for Effective Transfinite Recursion used in literature. Moreover, we show that $Π^0_2$-induction along a well-order $X$ is equivalent to the statement that the exponentiation of any well-order to the power of $X$ is well-founded.
Asymptotic properties of the normalized discrete associated-kernel estimator for probability mass function
Creators: name: Esstafa, Youssef
name: Kokonendji, Célestin C.
name: Somé, Sobom M.
Publisher: name: arXiv
Year: 2022
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G07, 62G20, 62G99

description: Discrete kernel smoothing is now gaining importance in nonparametric statistics. In this paper, we investigate some asymptotic properties of the normalized discrete associated-kernel estimator of a probability mass function. We show, under some regularity and non-restrictive assumptions on the associated-kernel, that the normalizing random variable converges in mean square to 1. We then derive the consistency and the asymptotic normality of the proposed estimator. Various families of discrete kernels already exhibited satisfy the conditions, including the refined CoM-Poisson which is underdispersed and of second-order. Finally, the first-order binomial kernel is discussed and, surprisingly, its normalized estimator has a suitable asymptotic behaviour through simulations.
description: 20 pages, 3 figures
Comparison of delensing methodologies and assessment of the delensing capabilities of future experiments
Creators: name: Diego-Palazuelos, P.
name: Vielva, P.
name: Martínez-González, E.
name: Barreiro, R. B.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Most of the CMB experiments proposed for the next generation aim to detect the Primordial Gravitational Wave Background (PGWB). The fulfillment of this objective depends on our capacity to separate Galactic foreground emissions and to \emph{delens} the secondary B-mode component induced by weak gravitational lensing. Focusing on the latter of these efforts, in this work we briefly review the basic aspects of lensing, and exhaustively compare the performance of current delensing methodologies and implementations within the Born approximation as a preparation for the analysis of the data to come in the following years. Two of the main conclusions that can be drawn from our study are that, for next-generation experiments, delensing efficiency will still be limited by the quality of the data itself rather than by the limitations of current delensing methodologies, and that template delensing within the antilensing approximation will be the optimal (balancing accuracy and computational cost) technique to employ. We then evaluate the delensing capabilities of future experiments (like the Simons Observatory, the CMB Stage-IV, or the LiteBIRD and PICO satellites) by applying that methodology onto numerical simulations of the typical CMB and lensing potential reconstructions that they are expected to produce, and quantify how internal and external delensing will help them to improve their sensitivity to detect the PGWB. We also consider the benefits that a joint analysis of their data would provide.
description: 37 pages, 12 figures, submitted to JCAP
Tiny but “strong”: the European Leaf-toed gecko, Euleptes europaea, a terrestrial vertebrate able to survive on tiny islets
Creators: name: Delaugerre, Michel Jean
name: Corti, Claudia
Publisher: name: Brill Online
Year: 2020
Subjects: subject: 60399 Evolutionary Biology not elsewhere classified
subject: FOS: Biological sciences

description: The present paper focuses on the ability of the European Leaf-toed gecko, Euleptes europaea, an endemic species of the western Mediterranean, to live in low-nutrient habitats. Its distribution is mainly insular and particularly noteworthy is its ability to live on islets and rocks. This work includes data originating from surveys carried out on 111 islands surrounding the island of Corsica (France) in search of herpetofauna. E. europaea is able to survive on the smallest islets, with low habitat complexity, suggesting a pre-adaptation of this species to island life. Moreover, high population densities associated with a low biomass seem to facilitate survival on island.
Medina melania
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Medina
Medina melania

description: Medina melania (MEIGEN, 1824)
Bgld, Jois, Schieferberg, 28.5.17; Winden, Zeilerberg, 26.5.17.
Neu für Burgenland. In FRANZ (1989) 2 Fundangaben aus Ö.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 796, DOI: 10.5281/zenodo.4004374
Body composition of vegetarian and omnivorous men
Creators: name: Schwartz, Adam
Publisher: name: University of British Columbia
Year: 2009

description: Background: The relationship between diet and human body composition has become a popular topic in recent years. Despite the popularity of vegetarianism little research has been conducted in the area of vegetarianism and body composition, and the focus of the minimal research to date has been on children and women. There is recent evidence that suggests that among older men, the ability to gain skeletal muscle with resistance training may be substantially diminished for individuals consuming a vegetarian versus an omnivorous diet. This issue has yet to be examined in a group of younger males. There is also some evidence to suggest that vegetarians may have lower levels of body fat in comparison to omnivores. Objective: The objective of this study was to identify body composition differences (muscle and fat) between young men consuming either a vegetarian or omnivorous diet. Design: 54 young males between 18-30 y participated in this study. Half of these subjects were vegetarians. Body fat and muscle mass were estimated from anthropometry. In addition, subjects completed the Three-Factor Eating Questionnaire (TFEQ) and the Godin Leisure-Time Exercise Questionnaire (GLTEQ), which were used as indicators of eating habits and activity levels. All subjects completed 3-day diet records. Results: Vegetarians had significantly lower predicted muscle mass (30.9kg vs. 32.7, p=0.049 1-tailed), and a lower sum of 12 corrected muscle girths compared to omnivores (2.5x10⁶cm³ vs. 2.7x10⁶cm³, p=0.033 1-tailed). Vegetarians had higher dietary intakes of fiber (139.8 vs. 92.3, p=0.006) and polyunsaturated fats (67.5 vs. 42.7, p=0.001) and lower intakes of saturated fats (93.8 vs. 129.1, p=0.031) than omnivores. There were no significant differences between groups with regard to body fat, dietary restraint (TFEQ), activity levels (GLTEQ and reported hours of weekly activity), or other dietary intake variables. Conclusion: Vegetarian men were found to have significantly lower muscle mass than omnivores, and these differences could not be accounted for by dietary restraint or activity levels.
Radio Recombination Lines from Starbursts: NGC 3256, NGC 4945 and the Circinus Galaxy
Creators: name: Roy, A. L.
name: Goss, W. M.
name: Mohan, Niruj R.
name: Oosterloo, T.
name: Anantharamaiah, K. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: A renewed attempt to detect radio recombination lines from external galaxies has resulted in the measurement of lines from several bright starburst galaxies. The lines are produced by hydrogen ionized by young, high-mass stars and are diagnostic of the conditions and gas dynamics in the starburst regions without problems of dust obscuration. We present here detections of the lines H91alpha and H92alpha near 8.6 GHz from the starburst nuclei in NGC 3256, NGC 4945, and the Circinus galaxy using the ATCA and VLA. Modelling the line emitting region as a collection of H II regions, we derive the required number of H II regions, their temperature, density, and distribution.
description: 6 pages, to appear in "Proc 331. Heraeus Seminar: The Evolution of Starbursts", Bad Honnef, Germany, Aug 16 - 20, 2004, Eds: S. Huettemeister, S. Aalto, D.J. Bomans, and E. Manthey
Classification of supersymmetric spacetimes in eleven dimensions
Creators: name: Cariglia, Marco
name: Mac Conamhna, Oisin A. P.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We derive, for spacetimes admitting a Spin(7) structure, the general local bosonic solution of the Killing spinor equation of eleven dimensional supergravity. The metric, four form and Killing spinors are determined explicitly, up to an arbitrary eight-manifold of Spin(7) holonomy. It is sufficient to impose the Bianchi identity and one particular component of the four form field equation to ensure that the solution of the Killing spinor equation also satisfies all the field equations, and we give these conditions explicitly.
description: 9 pages, latex. v2: change of title (formerly known as "Spin(7) structures in eleven dimensions"); short section on integrability conditions added, various minor changes. To appear in Phys.Rev.Lett
Food Spending Declined and Food Insecurity Increased for Middle-Income and Low-Income Households From 2000 to 2007
Creators: name: Nord, Mark
name: Nord, Mark
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Food Consumption/Nutrition/Food Safety
subject: Food Security and Poverty
subject: Food spending
subject: food expenditures
subject: food security
subject: food insecurity
subject: consumer expenditure survey
subject: current population survey food security supplement

description: From 2000 to 2007, median spending on food by U.S. households declined by 12 percent relative to the (rising) cost of USDA’s Thrifty Food Plan, and by 6 percent relative to the (rising) Consumer Price Index (CPI) for Food and Beverages. Over the same period, the national prevalence of very low food security increased by about one-third, from 3.1 percent of households in 2000 to 4.1 percent in 2007. The deterioration in food security was greatest in the second-lowest income quintile, in which the prevalence of very low food security increased by about half. These estimates, based on data from the nationally representative Current Population Survey Food Security Supplement, are corroborated by corresponding declines in food expenditures by middle- and low-income households in the U.S. Bureau of Labor Statistics’ Consumer Expenditure Survey. The decline was largest in the second-lowest income quintile, in which average CPI-inflation-adjusted spending for food declined by 16 percent. The declines in food spending by middle- and low-income households were accompanied by increases in spending for housing and, in the two lowest income quintiles, by declines in income and total spending.
Investigation of Pontryagin trace anomaly using Pauli-Villars regularization
Creators: name: Liu, Chang-Yong
Publisher: name: arXiv
Year: 2022
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In this paper, we investigate the Pontryagin trace anomaly for chiral fermions in a general curved background using Pauli-Villars regularization. We use both Feynman diagram method and Fujikawa's method to calculate the parity-odd contribution (Pontryagin term). Our result indicates that the trace anomaly of energy-momentum tensor for chiral fermions has Pontryagin term $P=\frac{i}{1536π^2}ε_{νσκλ}R^{νσ}_{\ \ ρμ}R^{ρμκλ}$ which agrees with the work of Bonora et al \cite{Bonora:2014qla}.
description: 20 pages, 6 figures
Vacuum polarization and finite nuclear size effects in the two-photon decay of hydrogen-like ions
Creators: name: Sommerfeldt, J.
name: Müller, R. A.
name: Volotka, A. V.
name: Fritzsche, S.
name: ~Surzhykov, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: FOS: Physical sciences

description: The total two-photon decay rate of hydrogen-like ions is studied using relativistic quantum electrodynamics. In particular, we analyse how finite nuclear size and QED vacuum polarization corrections affect the decay rate. To calculate these corrections, a finite basis set method based on $B$-splines is used for the generation of quasi-complete atomic spectra and, hence, of the relativistic Green's function. By making use of this $B$-spline approach, high precision calculations have been performed for the $2s_{1/2} \to 1s_{1/2} + 2γ$ and $2p_{1/2} \to 1s_{1/2} + 2γ$ decay of hydrogen-like ions along the entire isoelectronic sequence. The results of these calculations show that both, QED and finite nuclear size effects, are comparatively weak for the $2s_{1/2} \to 1s_{1/2} + 2γ$ transition. In contrast, they are much more pronounced for the $2p_{1/2}\to 1s_{1/2} + 2γ$ decay, where, for hydrogen-like Uranium, the decay rate is reduced by 0.484% due to the finite nuclear size and enhanced by 0.239% if the vacuum polarization is taken into account.
1. Reporting of the design, conduct and analysis of surveys A and B
Creators: name: Duncan, Lorna
Publisher: name: figshare
Year: 2021
Subjects: Health Care

description: 1. Completed checklist reporting of surveys A and B, following the CHERRIES guidelines: Eysenbach G. Improving the Quality of Web Surveys: The Checklist for Reporting Results of Internet E-Surveys (CHERRIES). J Med Internet Res 2004;3:e34. doi: https://doi.org/10.2196/jmir.6.3.e34
Radial Velocities of Newly Discovered Globular Clusters in NGC 5128
Creators: name: Woodley, Kristin A.
name: Harris, William E.
name: Harris, Gretchen L. H.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present radial velocity measurements for 74 globular clusters (GCs) in the nearby giant elliptical NGC 5128, of which 31 are newly discovered clusters. All the GC candidates were taken from the list of possible new clusters given in the Harris, Harris, & Geisler (2004) photometric survey. In addition to the newly confirmed clusters, we identified 24 definite foreground stars and 31 probable background galaxies. From a combined list of 299 known GCs in NGC 5128 with measured radial velocities and metallicity-sensitive (C - T_1) photometric indices, we construct a new metallicity distribution function (MDF) for the cluster system. The MDF shows an approximately bimodal form, with centroids at [Fe/H] = -1.46 and -0.53, and with nearly equal numbers of metal-poor and metal-rich clusters in the two modes. However, there are many intermediate-color clusters in the distribution, and the fainter clusters tend to have a higher proportion of red clusters. These features of the MDF may indicate a widespread age range within the cluster system as well as an intrinsically broad metallicity spread.
description: 10 pages, 7 figures, 4 tables - accepted in Astronomical Journal
PHYSICO-CHEMICAL CHARACTERISTICS OF WATER OF GAULA RIVER AT TARAI REGION OF UTTARAKHAND
Creators: name: Joshi, Amit
name: HCS Bisht
name: BC Joshi
Publisher: name: figshare
Year: 2020
Subjects: subject: 60204 Freshwater Ecology
subject: FOS: Biological sciences

description: Physicochemical characteristics of water were studied during March 2016 to April 2016 from the Gaula River at Kichha. The water samples were collected from 3 stations with in the stretch of one kilometer at weekly interval. The water temperature was almost in increasing order from day 0 to day 56 and ranged between 16.61°C and 20.05°C. The pH recorded during the investigation was between 7.37 and 7.58 mg/I and found within the desirable limits for fish growth. The dissolved oxygen concentration recorded between 5.81 to 1.86 mg/I. The value of free carbon dioxide was varied between 1.03 and 3.01 mg/I and was suitable for the survival of aquatic organisms. The total alkalinity values were moderate to high i.e. range between 108.80 and 161.20 mg/I. The total alkalinity showed mean annual values of bicarbonate and carbonate alkalinity respectively, were higher during 42 day of investigation. The finding from the study did not indicate any types of threats to the fauna and flora of the river during the research period. However it is also desirable to analyze the characteristics of water from Gaula River during other months and at regular interval.
Negative Refraction in Ferromagnet/Superconductor Superlattices
Creators: name: Pimenov, A.
name: Przyslupski, P. P.
name: Dabrowski, B.
name: Loidl, A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Materials Science (cond-mat.mtrl-sci)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Negative refraction, which reverses many fundamental aspects of classical optics, can be obtained in systems with negative magnetic permeability and negative dielectric permittivity. This Letter documents an experimental realization of negative refraction at millimeter waves, finite magnetic fields and cryogenic temperatures utilizing a multilayer stack of ferromagnetic and superconducting thin films. In the present case the superconducting YBa_2Cu_3O_7 layers provide negative permittivity while negative permeability is achieved via ferromagnetic (La:Sr)MnO_3 layers for frequencies and magnetic fields close to the ferromagnetic resonance. In these superlattices the refractive index can be switched between positive and negative regions using external magnetic field as tuning parameter.
description: 4 Pages, 3 Figures, Phys. Rev. Lett., accepted
A New Example of the Effects of a Singular Background on the Zeta Function
Creators: name: Falomir, Horacio
name: Liniado, Joaquín
name: Pisani, Pablo
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: To motivate our discussion, we consider a 1+1 dimensional scalar field interacting with a static Coulomb-type background, so that the spectrum of quantum fluctuations is given by a second-order differential operator on a single coordinate r with a singular coefficient proportional to 1/r. We find that the spectral functions of this operator present an interesting behavior: the zeta function has multiple poles in the complex plane; accordingly, logarithms of the proper time appear in the heat-trace expansion. As a consequence, the zeta function does not provide a finite regularization of the effective action. This work extends similar results previously derived in the context of conical singularities.
description: 26 pages
The Post-Buyout Experience: Peanut and Tobacco Sectors Adapt to Policy Reform
Creators: name: Dohlman, Erik
name: Foreman, Linda F.
name: Da Pra, Michelle
name: Dohlman, Erik
name: Foreman, Linda F.
name: Da Pra, Michelle
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Industrial Organization
subject: Institutional and Behavioral Economics
subject: Marketing
subject: FOS: Economics and business
subject: Policy reform
subject: farm policy
subject: buyouts
subject: marketing quotas
subject: peanuts
subject: tobacco
subject: adjustment
subject: structural change

description: Marketing quota and price support programs for peanuts and tobacco were a longstanding feature of U.S. farm policy, from the 1930s until the Government enacted quota buyouts, in 2002 for peanuts and 2004 for tobacco. Quota owners were compensated with temporary payments, but elimination of the quota programs exposed producers more to market risks and brought about structural changes at farm, regional, and marketwide levels. Since the buyouts, many peanut and tobacco farms have exited production. The farms that remain are mostly larger and have adopted new risk management strategies, such as contracting. Freed of the planting restrictions in the quota programs, production of peanuts, and to a lesser extent of tobacco, has been relocated to regions better suited to their growth. While total acreage and prices for peanuts and tobacco have remained below pre-buyout levels, the lower prices—along with increased production efficiency— have supported renewed growth in demand, particularly in export markets.
Medina multispina
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Medina
Medina multispina

description: Medina multispina (HERTING, 1966)
Bgld, Zurndorf, NSG, 14.6.17.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 796, DOI: 10.5281/zenodo.4004374
Spin Diffusion and Relaxation in a Nonuniform Magnetic Field
Creators: name: Berman, G. P.
name: Chernobrod, B. M.
name: Gorshkov, V. N.
name: Tsifrinovich, V. I.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We consider a quasiclassical model that allows us to simulate the process of spin diffusion and relaxation in the presence of a highly nonuniform magnetic field. The energy of the slow relaxing spins flows to the fast relaxing spins due to the dipole-dipole interaction between the spins. The magnetic field gradient suppresses spin diffusion and increases the overall relaxation time in the system. The results of our numerical simulations are in a good agreement with the available experimental data.
description: 11 pages and 6 figures
Dynamics of oscillating relativistic tori around Kerr black holes
Creators: name: Zanotti, O.
name: Font, J. A.
name: Rezzolla, L.
name: Montero, P. J.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We present a comprehensive numerical study of the dynamics of relativistic axisymmetric accretion tori with a power-law distribution of specific angular momentum orbiting in the background spacetime of a Kerr black hole. By combining general relativistic hydrodynamics simulations with a linear perturbative approach we investigate the main dynamical properties of these objects over a large parameter space. The astrophysical implications of our results extend and improve two interesting results that have been recently reported in the literature. Firstly, the induced quasi-periodic variation of the mass quadrupole moment makes relativistic tori of nuclear matter densities, as those formed during the last stages of binary neutron star mergers, promising sources of gravitational radiation, potentially detectable by interferometric instruments. Secondly, $p$-mode oscillations in relativistic tori of low rest-mass densities could be used to explain high frequency quasi-periodic oscillations observed in X-ray binaries containing a black hole candidate under conditions more generic than those considered so far.
description: 12 pages, 7 figures, accepted for publication by MNRAS
Consumers’ Stated Choices versus Purchasing Desires: Case of Hawaii Food Baskets
Creators: name: Hu, Wuyang
name: Cox, Linda J.
name: Hu, Wuyang
name: Cox, Linda J.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agricultural and Food Policy
subject: Consumer/Household Economics
subject: Gift baskets in China
subject: preferred choice
subject: willing to purchase
subject: hypothetical selection

description: This article uses a case study involving Hawaii food baskets to show that although a choice based conjoint experiment can elicit respondents’ most preferred alternative, this “preferred” option may not be one that respondents are willing to purchase. Thus, a choice based experiment that involves hypothetical product selection may predict different behavior, depending on the type of questions asked in the survey. This study shows that follow-up questions in a conjoint survey may serve an important role in improving model fit and the comprehensiveness of behavioral prediction.
Efficiency of Scottish Farms: A Stochastic Cost Frontier Analysis
Creators: name: Revoredo-Giha, Cesar
name: Milne, Catherine E.
name: Leat, Philip M.K.
name: Cho, Woong Je
name: Revoredo-Giha, Cesar
name: Milne, Catherine E.
name: Leat, Philip M.K.
name: Cho, Woong Je
Publisher: name: Unknown
Year: 2009
Subjects: subject: Farm Management
subject: Stochastic cost frontier analysis
subject: cost efficiency
subject: Scottish farms
subject: Common Agricultural Policy

description: In this paper the relative cost efficiency of Scottish farms is determined, and variables that explain this efficiency by farm type are identified and implications discussed. A panel dataset from the Farm Accounts Scheme (FAS) survey for the period 1997-2004 was used for the estimation. A cost efficiency indicator was measured using a fixed effect panel data regression. Further analysis, to explain the efficiency results, indicated the presence of important farm size and regional effects. However, other variables, whilst statistically significant, did not produce a consistent effect across the different farm types.
Medina separata
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Medina
Medina separata

description: Medina separata (MEIGEN, 1824)
Bgld, Jois, Schieferberg, 28.5.17.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 796, DOI: 10.5281/zenodo.4004374
Valuing Intellectual Property Rights in an Imperfectly Competitive Market: A Biopharming Application
Creators: name: Kostandini, Genti
name: Mills, Bradford F.
name: Kostandini, Genti
name: Mills, Bradford F.
Publisher: name: Unknown
Year: 2009
Subjects: subject: Agribusiness
subject: Demand and Price Analysis
subject: Financial Economics
subject: Marketing
subject: FOS: Economics and business
subject: biopharmaceuticals
subject: biopharming
subject: economic surplus
subject: imperfect competition
subject: intellectual property rights

description: Small research firms developing biotechnology applications often focus on establishing intellectual property rights (IPRs), which can then be sold to more established firms with existing market channels. This paper presents a method for valuing the IPRs for an innovation that lowers product production costs below those associated with the patented process of a monopolist. The application to Glucocerebrosidase enzyme from transgenic tobacco suggests an IPRs value of about $1.75 billion. Despite the innovator’s market power, significant surplus gains also accrue to consumers. Further, U.S. antitrust laws that prohibit IPRs acquisition by the current monopolist increase consumer welfare by almost 50%.
Discrete time-crystalline order in Bose-Hubbard model with dissipation
Creators: name: Dai, C. M.
name: Gu, Z. C.
name: Yi, X. X.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Periodically driven quantum systems manifest various non-equilibrium features which are absent at equilibrium. For example, discrete time-translation symmetry can be broken in periodically driven quantum systems leading to an exotic phase of matter, called discrete time crystal(DTC). For open quantum systems, previous studies showed that DTC can be found only when there exists a meta-stable state in the undriven system. However, by investigating the simplest Bose-Hubbard model with dissipation and time periodically tunneling, we find in this paper that a $2T$ DTC can appear even when the meta-stable state is absent in the undriven system. This observation extends the understanding of DTC and shed more light on the physics behind the DTC. Besides, by the detailed analysis of simplest two-sites model, we show further that the two-sites model can be used as basic building blocks to construct large rings in which a $nT$ DTC might appear. These results might find applications into engineering exotic phases in driven open quantum systems.
An $L^p$-spectral multiplier theorem with sharp $p$-specific regularity bound on Heisenberg type groups
Creators: name: Niedorf, Lars
Publisher: name: arXiv
Year: 2022
Subjects: subject: Analysis of PDEs (math.AP)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 43A22, 22E30, 42B15, 43A85

description: We prove an $L^p$-spectral multiplier theorem for sub-Laplacians on Heisenberg type groups under the sharp regularity condition $s>d\left|1/p-1/2\right|$, where $d$ is the topological dimension of the underlying group. Our approach relies on restriction type estimates where the multiplier is additionally truncated along the spectrum of the Laplacian on the center of the group.
description: 26 pages; added a funding acknowledgment
Neutron scattering studies of the spin ices Ho2Ti2O7 and Dy2Ti2O7 in applied magnetic field
Creators: name: Fennell, T.
name: Petrenko, O. A.
name: Fak, B.
name: Gardner, J. S.
name: Bramwell, S. T.
name: Ouladdiaf, B.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Other Condensed Matter (cond-mat.other)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Neutron diffraction has been used to investigate the magnetic correlations in single crystals of the spin ice materials Ho2Ti2O7 and Dy2Ti2O7 in an external magnetic field applied along either the [001] or [1-10] crystallographic directions. With the field applied along [001] a long range ordered groundstate is selected from the spin ice manifold. With the field applied along [1-10] the experiments show that the spin system is separated into parallel (alpha) and perpendicular (beta) chains with respect to the field. This leads to partial ordering and the appearance of quasi-one-dimensional magnetic structures. In both field orientations this frustrated spin system is defined by the appearance of metastable states, magnetization plateaux and unusually slow, field regulated dynamics.
description: TeX file + figures 1-12 as zipped .png files (please "download source" to obtain
Meigenia dorsalis
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Meigenia
Meigenia dorsalis

description: Meigenia dorsalis (MEIGEN, 1824)
Bgld, Jois, Schieferberg, 28.5.17;
Stmk, Eisenerzer Reichenstein, 13-1700m, 8.8.17, 4 Ex;
NÖ, Hainburg, Spitzerberg, 26.5.01.
 Neu für Burgenland, Niederösterreich und Steiermark. Die Art wurde in FRANZ (1989) noch nicht von M. mutabilis unterschieden.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 796, DOI: 10.5281/zenodo.4004374
FUSION03, Concluding Remarks
Creators: name: Balantekin, A. B.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Fusion reactions below the Coulomb barrier provide new insights into multidimensional quantum tunneling, nuclear reaction dynamics and nuclear structure. These reactions are also of considerable interest to nuclear astrophysics. In this summary recent developments in the field are reviewed and open questions related to subbarrier fusion are presented.
description: Proceedings of the "International Conference FUSION03: From A Tunneling Nuclear Microscope To Nuclear Processes In Matter, 12-15 Nov 2003, Matsushima, Japan (SPIRES Conf Num: C03/11/12)"
Forecasting Basis Levels in the Soybean Complex: A Comparison of Time Series Methods
Creators: name: Sanders, Dwight R.
name: Manfredo, Mark R.
name: Sanders, Dwight R.
name: Manfredo, Mark R.
Publisher: name: Unknown
Year: 2006
Subjects: subject: Risk and Uncertainty
subject: basis forecasts
subject: time series models
subject: soybean complex

description: A battery of time series methods are compared for forecasting basis levels in the soybean futures complex: soybeans, soybean meal, and soybean oil. Specifically, nearby basis forecasts are generated with exponential smoothing techniques, autoregression moving average (ARMA), and vector autoregression (VAR) models. The forecasts are compared to those of the 5-year average, year ago, and no change methods. Using the 5-year average as the benchmark method, the forecast evaluation results suggest that alternative naive techniques may produce better forecasts, and the improvement gained by time series modeling is relatively small. In this sample, there is little evidence that the basis has become systematically more difficult to forecast in recent years.
Meigenia grandigena
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Meigenia
Meigenia grandigena

description: Meigenia grandigena (PANDELLE, 1896)
OÖ, Gr. Pyhrgas, 1400m, 6.7.17; Grossraming, Almkogel, 11-1300m, 5.7.17; Grossraming, Almkogel, 14-1500m, 5.7.17;
NÖ, Ötscher, Gipfel, 1893m, 18.8.17, 5 Ex.
Neu für Ober- und Niederösterreich. In FRANZ (1989) nur 1 Fund aus der Steiermark.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 796, DOI: 10.5281/zenodo.4004374
Unification of Dark Energy and Dark Matter
Creators: name: Takahashi, Fuminobu
name: Yanagida, T. T.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We propose a scenario in which dark energy and dark matter are described in a unified manner. The ultralight pseudo-Nambu-Goldstone (pNG) boson, A, naturally explains the observed magnitude of dark energy, while the bosonic supersymmetry partner of the pNG boson, B, can be a dominant component of dark matter. The decay of B into a pair of electron and positron may explain the 511 keV gamma ray from the Galactic Center.
description: 10 pages, no figure, references and comments are added, version accepted for publication by Physics Letters B
Detecting sudden and gradual drifts in business processes from execution traces
Creators: name: Maaradji, Abderrahmane
name: Dumas, Marlon
name: La Rosa, Marcello
name: Ostovar, Alireza
Publisher: name: arXiv
Year: 2020
Subjects: subject: Artificial Intelligence (cs.AI)
subject: FOS: Computer and information sciences

description: Business processes are prone to unexpected changes, as process workers may suddenly or gradually start executing a process differently in order to adjust to changes in workload, season, or other external factors. Early detection of business process changes enables managers to identify and act upon changes that may otherwise affect process performance. Business process drift detection refers to a family of methods to detect changes in a business process by analyzing event logs extracted from the systems that support the execution of the process. Existing methods for business process drift detection are based on an explorative analysis of a potentially large feature space and in some cases they require users to manually identify specific features that characterize the drift. Depending on the explored feature space, these methods miss various types of changes. Moreover, they are either designed to detect sudden drifts or gradual drifts but not both. This paper proposes an automated and statistically grounded method for detecting sudden and gradual business process drifts under a unified framework. An empirical evaluation shows that the method detects typical change patterns with significantly higher accuracy and lower detection delay than existing methods, while accurately distinguishing between sudden and gradual drifts.
Meigenia incana
Creators: name: Schlüsslmayr, Gerhard
Publisher: name: Zenodo
Year: 2018
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Diptera
Tachinidae
Meigenia
Meigenia incana

description: Meigenia incana (FALLÉN, 1810)
Bgld, Breitenbrunn, Doktorbrunngraben, 24.6.17; Zurndorf, NSG, 14.6.17, 2 Ex.
Neu für Burgenland.
description: Published as part of Schlüsslmayr, Gerhard, 2018, Erstnachweise von Fliegen (Diptera) für Österreich und einige Bundesländer, pp. 765-800 in Linzer biologische Beiträge 50 (1) on page 796, DOI: 10.5281/zenodo.4004374
Single-Bubble Dynamics in Nanopores: Transition Between Homogeneous and Heterogeneous Nucleation
Creators: name: Paul, Soumyadeep
name: Hsu, Wei-Lun
name: Magnini, Mirco
name: Mason, Lachlan R
name: Ho, Ya-Lun
name: Matar, Omar K
name: Daiguji, Hirofumi
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: When applying a voltage bias across a thin nanopore, localized Joule heating can lead to single bubble nucleation, offering a unique platform for studying nanoscale bubble behavior, which is still poorly understood. Accordingly, we investigate bubble nucleation and collapse inside solid-state nanopores filled with electrolyte solutions and find that there exists a clear correlation between homo/heterogeneous bubble nucleation and the pore diameter. As the pore diameter is increased from 280 nm to 525 nm, the nucleation regime transitions from predominantly periodic homogeneous nucleation to a non-periodic mixture of homogeneous and heterogeneous nucleation. A transition barrier between the homogeneous and heterogeneous nucleation regimes is defined by considering the relative free-energy costs of cluster formation. A thermodynamic model considering the transition barrier and contact-line pinning on curved surfaces is constructed, which determines the possibility of heterogeneous nucleation. It is shown that the experimental bubble generation behavior is closely captured by our thermodynamic analysis, providing important information for controlling the periodic homogeneous nucleation of bubbles in nanopores.
description: 15 pages, 11 figures; revised version
On the Role of $^{40}$K in the Origin of Terrestrial Life
Creators: name: Vladilo, Giovanni
Publisher: name: arXiv
Year: 2022
Subjects: subject: Biological Physics (physics.bio-ph)
subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: The abundance and biological role of potassium suggest that its unstable nuclide was present in all stages of terrestrial biogenesis. With its enhanced isotopic ratio in the Archean eon, $^{40}$K may have contributed to the special, perhaps unique, biogenetic conditions that were present in the primitive Earth. Compared to the U and Th radionuclides, $^{40}$K has a less disruptive radiochemical impact, which may drive a moderate, but persistent evolution of the structural and functional properties of proto-biological molecules. In the main $β$-decay route of $^{40}$K, the radiation dose generated by an Archean solution with potassium ions can be larger than the present background radiation on Earth by one to two orders of magnitude. Estimates of the rates of organic molecules indirectly affected by $β$ decays are provided for two schematic models of the propagation of secondary events in the solvent of prebiotic solutions. The left-handed $β^-$ particles emitted by $^{40}$K are the best candidates to trigger an enantiomeric excess of L-type amino acids via weak nuclear forces in the primitive Earth. The concentration-dependent radiation dose of $^{40}$K fits well in dry--wet scenarios of life's origins and should be considered in realistic simulations of prebiotic chemical pathways.
description: 16 pages, 2 figures, published in Life 2022, 12, 1620
Conditional Generative Data Augmentation for Clinical Audio Datasets
Creators: name: Seibold, Matthias
name: Hoch, Armando
name: Farshad, Mazda
name: Navab, Nassir
name: Fürnstahl, Philipp
Publisher: name: arXiv
Year: 2022
Subjects: subject: Sound (cs.SD)
subject: Machine Learning (cs.LG)
subject: Audio and Speech Processing (eess.AS)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: In this work, we propose a novel data augmentation method for clinical audio datasets based on a conditional Wasserstein Generative Adversarial Network with Gradient Penalty (cWGAN-GP), operating on log-mel spectrograms. To validate our method, we created a clinical audio dataset which was recorded in a real-world operating room during Total Hip Arthroplasty (THA) procedures and contains typical sounds which resemble the different phases of the intervention. We demonstrate the capability of the proposed method to generate realistic class-conditioned samples from the dataset distribution and show that training with the generated augmented samples outperforms classical audio augmentation methods in terms of classification performance. The performance was evaluated using a ResNet-18 classifier which shows a mean Macro F1-score improvement of 1.70% in a 5-fold cross validation experiment using the proposed augmentation method. Because clinical data is often expensive to acquire, the development of realistic and high-quality data augmentation methods is crucial to improve the robustness and generalization capabilities of learning-based algorithms which is especially important for safety-critical medical applications. Therefore, the proposed data augmentation method is an important step towards improving the data bottleneck for clinical audio-based machine learning systems.