cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
SN 2014ab: An Aspherical Type IIn Supernova with Low Polarization
Creators: name: Bilinski, Christopher
name: Smith, Nathan
name: Williams, G. Grant
name: Smith, Paul
name: Andrews, Jennifer
name: Clubb, Kelsey I.
name: Zheng, WeiKang
name: Filippenko, Alexei V.
name: Fox, Ori D.
name: Hosseinzadeh, Griffin
name: Howell, D. Andrew
name: Kelly, Patrick L.
name: Milne, Peter
name: Sand, D. J.
name: Hoffman, Jennifer L.
name: Leonard, Douglas C.
name: Cargill, Samantha
name: Casper, Chadwick
name: Halevy, Goni
name: Kim, Haejung
name: Kumar, Sahana
name: Pina, Kenia
name: Yuk, Heechan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present photometry, spectra, and spectropolarimetry of supernova (SN) 2014ab, obtained through $\sim 200$ days after peak brightness. SN 2014ab was a luminous Type IIn SN ($M_V < -19.14$ mag) discovered after peak brightness near the nucleus of its host galaxy, VV 306c. Prediscovery upper limits constrain the time of explosion to within 200 days prior to discovery. While SN 2014ab declined by $\sim 1$ mag over the course of our observations, the observed spectrum remained remarkably unchanged. Spectra exhibit an asymmetric emission-line profile with a consistently stronger blueshifted component, suggesting the presence of dust or a lack of symmetry between the far side and near side of the SN. The Pa$β$ emission line shows a profile very similar to that of H$α$, implying that this stronger blueshifted component is caused either through obscuration by large dust grains, occultation by optically thick material, or a lack of symmetry between the far side and near side of the interaction region. Despite these asymmetric line profiles, our spectropolarimetric data show that SN 2014ab has little detected polarization after accounting for the interstellar polarization. This suggests that we are seeing emission from a photosphere that has only small deviation from circular symmetry face-on. We are likely seeing a SN IIn with nearly circular symmetry in the plane normal to our line of sight, but with either large-grain dust or significant asymmetry in the density of circumstellar material or SN ejecta along our line of sight. We suggest that SN 2014ab and SN 2010jl (as well as other SNe IIn) may be similar events viewed from different directions.
description: 20 pages, 19 figures
Coloring Artemis graphs
Creators: name: Lévêque, Benjamin
name: Maffray, Frédéric
name: Reed, Bruce
name: Trotignon, Nicolas
Publisher: name: arXiv
Year: 2005
Subjects: subject: Discrete Mathematics (cs.DM)
subject: FOS: Computer and information sciences
subject: G.2.2

description: We consider the class A of graphs that contain no odd hole, no antihole, and no ``prism'' (a graph consisting of two disjoint triangles with three disjoint paths between them). We show that the coloring algorithm found by the second and fourth author can be implemented in time O(n^2m) for any graph in A with n vertices and m edges, thereby improving on the complexity proposed in the original paper.
Spin transport and magnetoresistance in F/S/F spin valves
Creators: name: Morten, Jan Petter
name: Brataas, Arne
name: Belzig, Wolfgang
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We consider spin transport and spin relaxation in superconductors using the quasiclassical theory of superconductivity. We include spin relaxation due to spin-orbit interaction as well as magnetic impurities, and show that the energy dependence of the spin-flip rate is different for these two mechanisms. In ferromagnet-superconductor-ferromagnet systems made of Co and Al, interface resistances can be small compared to bulk resistances. This simplifies the description of transport in Co/Al/Co spin valves, for which we numerically calculate the temperature and Al length dependence of the magnetoresistance.
description: 6 pages, 6 figures
Sexualität und Sterben – ein Tabu am Lebensende: Soziale Arbeit als Unterstützung bei der Gestaltung von Sexualität von erwachsenen Menschen in palliativen Lebenssituationen
Creators: name: Hauser, Jeannine
name: Portmann, Anja
Publisher: name: Zenodo
Year: 2021

description: Die hier vorliegende Bachelorarbeit befasst sich mit Sexualität und Sterben. Die Verbindung von Sexualität und Sterben sorgt in den meisten Köpfen für Verwirrung. Und doch stellen die beiden Themen in der Kombination eine Realität dar. Trotzdem kann in der Praxis der Palliative Care beobachtet werden, dass die Thematik Sexualität oftmals unausgesprochen bleibt. Folgende Bachelorarbeit verleiht diesem unausgesprochenen Thema eine Stimme und durchbricht ein Tabu. Mittels aktueller und internationaler Literatur, einem Expertinneninterview und dem Austausch mit Praxisorganisationen gehen wir der Frage nach “Welche Unterstützung die Soziale Arbeit bieten kann, um mit dem Spannungsfeld von Sexualität in der Praxis der Palliative Care umzugehen.” Die Bedeutsamkeit von Sexualität in palliativen Lebenssituationen wird mit der Theorie der Lebensbewältigung nach Lothar Böhnisch erklärt. Die Soziale Arbeit als Teil des interprofessionellen Palliative Care Team, sollte mit ihrer Ausrichtung auf die Menschenrechte und somit auch auf die sexuellen Rechte interessiert daran sein, Sexualität einen Platz auch in palliativen Lebenssituationen einzuräumen. Dazu soll die Soziale Arbeit das interprofessionelle Palliative Care Team hinsichtlich der Mehrdimensionalität von Sexualität sensibilisieren und fachlichen Support bezüglich Gesprächsführungskompetenzen bieten. Dies ist elementar, da ein Gespräch über Sexualität nebst fachlichem Wissen auch ausgereifte Gesprächsführungskompetenzen benötigt. Als unterstützendes Instrument wird das bestehende PLISSIT Modell für die Gestaltung von Sexualität in palliativen Lebenssituationen in der vorliegenden Arbeit modifiziert.
description: + Code Diss LU: hslusa basp be 2021 + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialpädagogik 2021 + NL-Code: NLLUHSA202103
Talbot, Alice-Mary (Ed.): Holy Women of Byzamtium
Creators: name: Tinnefeld, Franz Hermann
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 81 (1997): Oriens christianus, Band 81
Highly Excited Hadrons in QCD and Beyond
Creators: name: Shifman, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: I discuss two issues related to high "radial" excitations which attracted much attention recently: (i) chiral symmetry restoration in excited mesons and baryons, and (ii) universality of the rho-meson coupling in QCD and AdS/QCD. New results are reported and a curious relation between an AdS/QCD formula and 1977 Migdal's proposal is noted.
description: References added in v2. 20 pages, 5 figures. Based on talks delivered at the First Workshop on Quark-Hadron Duality and the Transition to pQCD, Laboratori Nazionali di Frascati, Italy, June 6-8, 2005, and the Workshop on Highly Excited Hadrons, ECT* in Trento, Italy, July 4-9, 2005
Is Multichannel Access Useful in Timely Information Update?
Creators: name: Liang, Jiaxin
name: Pan, Haoyuan
name: Liew, Soung Chang
Publisher: name: arXiv
Year: 2020
Subjects: subject: Networking and Internet Architecture (cs.NI)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: This paper investigates information freshness of multichannel access in information update systems. Age of information (AoI) is a fundamentally important metric to characterize information freshness, defined as the time elapsed since the generation of the last successfully received update. When multiple devices share the same wireless channel to send updates to a common receiver, an interesting question is whether dividing the whole channel into several subchannels will lead to better AoI performance. Given the same frequency band, dividing it into different numbers of subchannels lead to different transmission times and packet error rates (PER) of short update packets, thus affecting information freshness. We focus on a multichannel access system where different devices take turns to transmit with a cyclic schedule repeated over time. We first derive the average AoI by estimating the PERs of short packets. Then we examine bounded AoI, for which the instantaneous AoI is required to be below a threshold a large percentage of the time. Simulation results indicate that multichannel access can provide low average AoI and uniform bounded AoI simultaneously across different received powers. Overall, our investigations provide insights into practical designs of multichannel access systems with AoI requirements.
description: 13 pages, 6 figures, submitted to Wireless Communication Letter
Baryon number and strangeness: signals of a deconfined antecedent
Creators: name: Majumder, A.
name: Koch, V.
name: Randrup, J.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: The correlation between baryon number and strangeness is used to discern the nature of the deconfined matter produced at vanishing chemical potential in high-energy nuclear collisions at the BNL RHIC. Comparisons of results of various phenomenological models with correlations extracted from lattice QCD calculations suggest that a quasi-particle picture applies. At finite baryon densities, such as those encountered at the CERN SPS, it is demonstrated that the presence of a first-order phase transition and the accompanying development of spinodal decomposition would significantly enhance the number of strangeness carriers and the associated fluctuations.
description: 10 pages, 4 figures, latex, to appear in the proceedings of the Workshop on Correlations and Fluctuations in Relativistic Nuclear collisions, (MIT, April 21-23,2005)
Krivus̆in, I. V.: Roz̆denie cerkovnoj istoriografii
Creators: name: Tinnefeld, Franz Hermann
Publisher: name: Oriens christianus : Hefte für die Kunde des christlichen Orients
Year: 2024

description: Oriens christianus : Hefte für die Kunde des christlichen Orients, Bd. 81 (1997): Oriens christianus, Band 81
Rechtliche Rahmenbedingungen des Forschungsdatenmanagements - Teil 1: Urheber- und Leistungsschutzrechte an Forschungsdaten; Teil 2: Entscheidungsbefugnis über den Umgang mit Forschungsdaten; Teil 3: Nutzungsrechtseinräumung an Forschungsdaten
Creators: name: HeFDI-Hessische Forschungsdateninfrastrukturen
Publisher: name: Zenodo
Year: 2021
Subjects: Research Data Management rights copyright

description: Rechtsaspekte des Forschungsdatenmanagements werfen nach wie vor viele Fragen für Forschende und Nachnutzende auf: Wer darf welche Daten zu welchen Zwecken erheben und verarbeiten? Wem können die Daten „zugeordnet“ werden? Wer darf entscheiden, ob und wann sie veröffentlicht werden? Welche Lizenzen sind geeignet? Wer darf welche Daten unter welchen Umständen nutzen? Um den Unsicherheiten im rechtlichen Umgang mit Forschungsdaten zu begegnen, hat HeFDI auf Basis des Gutachtens des DataJus-Projekts (https://tu-dresden.de/gsw/jura/igetem/jfbimd13/ressourcen/dateien/dateien/DataJus/DataJus_Zusammenfassung_Gutachten_12-07-18.pdf?lang=de) die hier publizierten Materialien zusammengestellt. Diese dienen dazu, Forschenden und Forschungsdatenmanager*innen einen gut verständlichen Zugang zu Rechtsfragen hinsichtlich Forschungsdaten zu ermöglichen. Das anschaulich konzipierte Material kann sowohl in Schulungen zum Datenmanagement als auch in konkreten Beratungsprozessen eingesetzt werden. HeFDI hat bislang die Themenfelder 1 Urheber- und Leistungsschutzrechte an Forschungsdaten, 2 Entscheidungsbefugnis über den Umgang mit Forschungsdaten sowie 3 Nutzungsrechtseinräumungen für urheberrechtlich geschützte Daten in dem hier publizierten Material zusammengefasst. Die vorliegenden Dateien bestehen aus animierten Präsentationen in editierbarem Format. Die Handreichung soll bei Bedarf aktualisiert werden. Anmerkungen und Korrekturen sowie Verbesserungsvorschläge bitten wir an hefdi@uni-marburg.de zu senden. Dieses Werk ist lizensiert unter einer Creative Commons Namensnennung - Weitergabe unter gleichen Bedingungen 4.0 International -Lizenz (https://creativecommons.org/licenses/by-sa/4.0/).
description: Bearbeiter: Patrick Langner, Christian Krippes, Nina Dworschak
Ballistic and diffusive: theory of vortices in the two-band superconductor MgB2
Creators: name: Tanaka, K.
name: Agterberg, D. F.
name: Kopu, J.
name: Eschrig, M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Motivated by the recent results on impurity effects in MgB2, we present a theoretical model for a two-band superconductor in which the character of quasiparticle motion is ballistic in one band and diffusive in the other. We apply our model to calculate the electronic structure in the vicinity of an isolated vortex. We assume that superconductivity in the diffusive (pi) band is induced by that in the clean (sigma) band, as suggested by experimental evidence for MgB2. We focus our attention to the spatial variations of the order parameter, the current density, and the vortex core spectrum in the two bands. Our results indicate that the coupling to the pi band can lead to the appearance of additional bound states near the gap edge in the sigma band that are absent in the single-band case.
description: 4 pages, 4 figures
Spin 3/2 Pentaquark Resonance Signature in Lattice QCD
Creators: name: Lasscock, B. G.
name: Leinweber, D. B.
name: Melnitchouk, W.
name: Thomas, A. W.
name: Williams, A. G.
name: Young, R. D.
name: Zanotti, J. M.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Lattice (hep-lat)
subject: FOS: Physical sciences

description: The possible discovery of the Theta+ pentaquark has motivated a number of studies of its nature using lattice QCD. While all the analyses thus far have focussed on spin-1/2 states, here we report the results of the first exploratory study in quenched lattice QCD of pentaquarks with spin 3/2. For the spin-3/2 interpolating field we use a product of the standard N and K* operators. We do not find any evidence for the standard lattice resonance signature of attraction (i.e., binding at quark masses near the physical regime) in the J^P = 3/2- channel. Some evidence of binding is inferred in the isoscalar 3/2+ channel at several quark masses, in accord with the standard lattice resonance signature. This suggests that this is a good candidate for the further study of pentaquarks on the lattice.
description: 23 pages, 23 figures
Rosettozymales Q. M. Wang & F. Y. Bai 2020, ord. nov.
Creators: name: Li, A. - H.
name: Yuan, F. - X.
name: Groenewald, M.
name: Bensch, K.
name: Yurkov, A. M.
name: Li, K.
name: Han, P. - J.
name: Guo, L. - D.
name: Aime, M. C.
name: Sampaio, J. P.
name: Jindamorakot, S.
name: Turchetti, B.
name: Inacio, J.
name: Fungsin, B.
name: Wang, Q. - M.
name: Bai, F. - Y.
Publisher: name: Zenodo
Year: 2020
Subjects: Biodiversity
Taxonomy
Fungi
Basidiomycota
Microbotryomycetes
Rosettozymales

description: Rosettozymales Q.M. Wang & F.Y. Bai ord. nov. MycoBank MB828829.
 Member of the Microbotryomycetes. The diagnosis of the order Rosettozymales is based on the the genus Rosettozyma. The nomenclature of the order is based on the genus Rosettozyma.
 Type family: Rosettozymaceae Q.M. Wang & F.Y. Bai.
description: Published as part of Li, A. - H., Yuan, F. - X., Groenewald, M., Bensch, K., Yurkov, A. M., Li, K., Han, P. - J., Guo, L. - D., Aime, M. C., Sampaio, J. P., Jindamorakot, S., Turchetti, B., Inacio, J., Fungsin, B., Wang, Q. - M. & Bai, F. - Y., 2020, Diversity and phylogeny of basidiomycetous yeasts from plant leaves and soil: Proposal of two new orders, three new families, eight new genera and one hundred and seven new species, pp. 17-140 in Studies In Mycology 96 on page 117, DOI: 10.1016/j.simyco.2020.01.002, http://zenodo.org/record/10497182
Kinetic description of avalanching systems
Creators: name: Gedalin, M.
name: Balikhin, M.
name: Coca, D.
name: Consolini, G.
name: Treumann, R. A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: Avalanching systems are treated analytically using the renormalization group (in the self-organized-criticality regime) or mean-field approximation, respectively. The latter describes the state in terms of the mean number of active and passive sites, without addressing the inhomogeneity in their distribution. This paper goes one step further by proposing a kinetic description of avalanching systems making use of the distribution function for clusters of active sites. We illustrate application of the kinetic formalism to a model proposed for the description of the avalanching processes in the reconnecting current sheet of the Earth magnetosphere.
description: 9 pages
VERIFICATION IN CONTRACTS WITH RANDOM CHANGES IN QUALITY
Creators: name: Dimitri, Carolyn
name: Lichtenberg, Erik
name: Dimitri, Carolyn
name: Lichtenberg, Erik
Publisher: name: Unknown
Year: 2000
Subjects: subject: Marketing
subject: FOS: Economics and business

description: Many goods and services are subject to random changes in quality during the time between sale and delivery, resulting in markets characterized by lemons-market equilibria. We examine two forms of costly verification, ex post inspection and ex ante certification. In equilibrium, ex post verification is used to verify buyers' reports of low quality, while ex ante certification is used to verify sellers' shipments of high quality. Ex post inspection allows buyers to earn rents; in some circumstances, ex ante certification allows sellers to earn rents. One would expect buyers to prefer ex post inspection while sellers prefer ex ante certification.
Präventive sozialarbeiterische Ansätze und Ideen zur Unterstützung von Sportvereinen bei sozialen Themen und Herausforderungen mit Kindern und Jugendlichen: Ein Ideenkatalog
Creators: name: Haussener, Manuel
Publisher: name: Zenodo
Year: 2021

description: Sportvereine sind in ihrer täglichen Arbeit nicht nur mit sportlichen Herausforderungen konfrontiert, sondern auch mit strukturellen und sozialen Themen. Durch die ehrenamtliche Arbeit und Diversität der Funktionär*innen besteht innerhalb der Sportvereine wenig Wissen im Umgang mit den Folgen und Herausforderungen von sozialen Themen. Sportvereine bzw. die Teilnahme an Sportangeboten haben sowohl eine gesundheitsfördernde, wie auch eine sozialintegrative Wirkung. Da Sportvereine in ihrer Mitgliederstruktur eine grosse Anzahl von Kindern und Jugendlichen aufweisen, sind die sozialen Themen dieser Zielgruppe besonders relevant. Als eine der bedeutenden Lebenswelten von Kindern und Jugendlichen wird die «Freizeit» genannt. Durch eine gelingende Gestaltung dieser Lebenswelt können Sportvereine eine präventive Rolle in der Lebenswelt von Kindern und Jugendlichen wahrnehmen. Dieser präventiven Rolle sind sich Sportvereine wohl bewusst, es fehlt ihnen jedoch an Wissen und Methoden um mit den entstandenen Herausforderungen umzugehen. Die Prävention ist eine der wichtigsten, methodischen Ansätze der Sozialen Arbeit. Mit dem Blick in die Zukunft probiert die Prävention, soziale Probleme zu verhindern. Die Beratung ist eine der Methoden, welche die Sozialarbeit für sich proklamiert. Die Sozialarbeit soll den Sportvereinen mit beraterischer Unterstützung in herausfordernden sozialen Situationen zur Seite stehen. Weiter sollen Sportvereine mit präventiven Ideen durch die Sozialarbeit ihren täglichen Umgang mit Kindern und Jugendlichen gelingender gestalten. Ein Ideenkatalog kann für die Sportvereine, sowie die Fachpersonen der Sozialen Arbeit Anreiz sein, sich diesem Thema anzunehmen.
description: + Code Diss LU: hslusa basa be 2021 + Fussnote: Bachelor-Arbeit, Hochschule Luzern – Soziale Arbeit, Studienrichtung Sozialarbeit 2021 + NL-Code: NLLUHSA202103
JOINT ADOPTION OF MULTIPLE TECHNOLOGIES: A DUAL, LATENT DEMAND APPROACH
Creators: name: Lichtenberg, Erik
name: Strand, Ivar E.
name: Lichtenberg, Erik
name: Strand, Ivar E.
Publisher: name: Unknown
Year: 2000
Subjects: Demand and Price Analysis
Environmental Economics and Policy
Research and Development/Tech Change/Emerging Technologies

description: Latent demand models can be used to overcome computational difficulties that frequently hamper empirical evaluation of relatedness in the adoption of multiple technologies. This paper develops and applies such an approach to a case involving agricultural soil and water conservation. The results indicate both complementarity and substitution. Own-price elasticities of demand for all technologies and cross-price elasticities of demand for related technologies are substantial. The results are used to derive implications for the design and implementation of cost sharing programs, which have been one of the primary policies used to address nonpoint source agricultural water pollution problems.
description: Working Paper WP 00-14 IS NO LONGER AVAILABLE--THIS PAPER HAS BEEN REPLACED BY WORKING PAPER 01-12
Multiphase Flows: Rich Physics, Challenging Theory, and Big Simulations
Creators: name: Subramaniam, Shankar
Publisher: name: arXiv
Year: 2020
Subjects: subject: Fluid Dynamics (physics.flu-dyn)
subject: FOS: Physical sciences

description: Understanding multiphase flows is vital to addressing some of our most pressing human needs: clean air, clean water and the sustainable production of food and energy. This article focuses on a subset of multiphase flows called particle-laden suspensions involving non-deforming particles in a carrier fluid. The hydrodynamic interactions in these flows result in rich multiscale physics, such as clustering and pseudo-turbulence, with important practical implications. Theoretical formulations to represent, explain and predict these phenomena encounter peculiar challenges that multiphase flows pose for classical statistical mechanics. A critical analysis of existing approaches leads to the identification of key desirable characteristics that a formulation must possess in order to be successful at representing these physical phenomena. The need to build accurate closure models for unclosed terms that arise in statistical theories has motivated the development of particle-resolved direct numerical simulations (PR--DNS) for model-free simulation at the microscale. A critical perspective on outstanding questions and potential limitations of PR-DNS for model development is provided. Selected highlights of recent progress using PR-DNS to discover new multiphase flow physics and develop models are reviewed. Alternative theoretical formulations and extensions to current formulations are outlined as promising future research directions. The article concludes with a summary perspective on the importance of integrating theoretical, modeling, computational, and experimental efforts at different scales. This article is based on an invited talk given at the 2019 Annual Meeting of the American Physical Society's Division of Fluid Dynamics in Seattle, WA.
Additional file 3 of Influences of claywater and greenwater on the skin microbiome of cultured larval sablefish (Anoplopoma fimbria)
Creators: name: Dodd, Emily T.
name: Pierce, Melissa L.
name: Lee, Jonathan S. F.
name: Poretsky, Rachel S.
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 3. SourceTracker estimates of proportions of microbial communities associated with hatching silo water, experimental tank water, algal paste, powdered clay, incoming seawater, and rotifer feed that are represented on larval sablefish skin on day 3 and day 15, averaged across all replicates. Analysis was done with burn-in of 1000 and no rarefication.
Modelling subglacial erosion and englacial sediment transport of the North American ice sheets
Creators: name: Hildes, Dave Henry Degast
Publisher: name: University of British Columbia
Year: 2009

description: The glacial geology of North America is a rich resource upon which reconstructions of ice sheets are made. Numerical modelling of ice sheets based on ice physics is an alternate avenue for cryospheric reconstruction. However, such algorithms are unable to draw from the full wealth of geomorphic data because a large-scale forward model of basal processes, necessary to link the ice and the bed, is not available. I develop a process-based model of sediment production, entrainment, deposition and transport to fill this conspicuous gap. Subglacial abrasion is modelled following Hallet [1979, 1981] and a quarrying model, dependent on subcritical crack growth, is constructed. Entrainment proceeds predominantly by intrusion into the sediment [Iverson and Semmens, 1995] and when basal melt exceeds the rate of entrainment, englacial sediment is deposited. Both vertical redistribution of englacial sediment within an ice column and lateral transport of debris is considered. Ice entrains loose debris from the bed, transports it downstream and deposits an allochthonous debris train, observable on the modern landscape. This can be modelled when an accurate geologic representation of the bed is used, allowing the exploitation of distinct lithologies as natural tracers of ice motion. Also, incorporation of the differences in physical properties between various lithologies is possible with such a lithologically realistic description of the bed. Several processes are functions of bed topography and a description of small-scale topography within a large-scale grid is required; a downscaling method is therefore developed. Basal-ice processes must be coupled to both ice sheet conditions and subglacial hydrology. The Marshall-Clarke thermo-mechanicalice sheet model [Marshall, 1996; Marshall and Clarke, 1997a,b; Marshall et al., 2000] gives the necessary ice sheet fields and provides the forcing for the hydrology model of Flowers [2000] which in turn delivers subglacial water pressure, used for both the quarrying and entrainment simulations. Comparisons of model results with the documented large-scale debris trains of Hudson Bay Paleozoic sedimentary rocks and Dubawnt Group detritus are used to test the veracity of the transport model while estimates of paleo-erosion are used to assess the erosion model.
AGRICULTURE AND THE ENVIRONMENT
Creators: name: Lichtenberg, Erik
name: Lichtenberg, Erik
Publisher: name: Unknown
Year: 2000
Subjects: Environmental Economics and Policy

description: The distinctive nature of environmental quality problems in agriculture- an industry based on the extraction of highly variable natural resources under stochastic conditions- has important implications for policy design. First, we examine the source of environmental quality problems and the strength of incentives for resource stewardship that may incidentally induce farmers to protect environmental quality. In turn, we examine environmental policy design under two features that are pervasive in agriculture: (1) heterogeneity caused by resource variability and (2) uncertainty. Next, we examine the effects of interactions between agricultural, environmental, and resource policies. Finally, we review important areas for further research.
EVIDENCE OF FARMER FORWARD PRICING BEHAVIOR
Creators: name: McNew, Kevin
name: Musser, Wesley N.
name: McNew, Kevin
name: Musser, Wesley N.
Publisher: name: Unknown
Year: 2000
Subjects: subject: Demand and Price Analysis
subject: Marketing
subject: FOS: Economics and business
subject: Grain Marketing
subject: Hedging
subject: Risk Management

description: The current agricultural marketing literature has considerable controversy about the optimal use of hedging for farmers. Much of this literature has very limited data on farmer behavior and an evaluation of the outcome of this behavior. This paper uses data from a hedging game from Maryland marketing clubs for 1994-1998. Hypotheses concerning the consistency of farmer behavior with the research literature on hedging are considered. Results indicate that farmers do not achieve price enhancement from hedging. However, their decisions do not conform to implications of optimal hedging models in a number of dimensions. This analysis provides further information to help bridge the gap between academic research and practical hedging.
Scalable Termination Detection for Distributed Actor Systems
Creators: name: Plyukhin, Dan
name: Agha, Gul
Publisher: name: arXiv
Year: 2020
Subjects: subject: Logic in Computer Science (cs.LO)
subject: FOS: Computer and information sciences

description: Automatic garbage collection (GC) prevents certain kinds of bugs and reduces programming overhead. GC techniques for sequential programs are based on reachability analysis. However, testing reachability from a root set is inadequate for determining whether an actor is garbage because an unreachable actor may send a message to a reachable actor. Instead, it is sufficient to check termination (sometimes also called quiescence): an actor is terminated if it is not currently processing a message and cannot receive a message in the future. Moreover, many actor frameworks provide all actors with access to file I/O or external storage; without inspecting an actor's internal code, it is necessary to check that the actor has terminated to ensure that it may be garbage collected in these frameworks. Previous algorithms to detect actor garbage require coordination mechanisms such as causal message delivery or nonlocal monitoring of actors for mutation. Such coordination mechanisms adversely affect concurrency and are therefore expensive in distributed systems. We present a low-overhead reference listing technique (called DRL) for termination detection in actor systems. DRL is based on asynchronous local snapshots and message-passing between actors. This enables a decentralized implementation and transient network partition tolerance. The paper provides a formal description of DRL, shows that all actors identified as garbage have indeed terminated (safety), and that all terminated actors--under certain reasonable assumptions--will eventually be identified (liveness).
description: 23 pages, 7 figures. To appear in the proceedings of CONCUR 2020. Version 2: Fixed TeX error that omitted predicates in the third line of the Send rule: Actor $A$ must have active refobs $x$ and $y_1 \dots y_n$
Do Agricultural Preservation Programs Affect Farmland Conversion? Evidence from a Propensity Score Matching Estimator
Creators: name: Liu, Xiangping
name: Lynch, Lori
name: Liu, Xiangping
name: Lynch, Lori
Publisher: name: Unknown
Year: 2006
Subjects: Land Economics/Use

description: More than 124 governmental entities concerned about suburban sprawl and farmland loss have implemented farmland preservation programs preserving 1.67 million acres at a cost of $3.723 billion. Yet little analysis on these programs' effectiveness in slowing farmland loss has been conducted. Using a unique 50-year 269 county panel data set on preservation programs and farmland loss for six Mid-Atlantic States, we employ the propensity score matching method to find strong empirical evidence that these programs have had a statistically significant effect on the rate of farmland loss. Preservation programs on average decrease the rate of farmland loss by 3 percentage points; a 43% decrease from the average rate of 7.31%.
Additional file 1 of Influences of claywater and greenwater on the skin microbiome of cultured larval sablefish (Anoplopoma fimbria)
Creators: name: Dodd, Emily T.
name: Pierce, Melissa L.
name: Lee, Jonathan S. F.
name: Poretsky, Rachel S.
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 1 PERMANOVA results of the Bray-Curtis distances of larval fish skin and tank water microbial communities. Homogeneity of variances was estimated and tested, with significant p-values listed in parentheses. The effects of date and treatment were tested on subsets of the data containing only samples from fish skin or tank water. The effect of parental cross was tested on a subset of the data containing samples from fish skin. Each test was conducted using 1000 permutations. To maintain a balanced design, water samples taken at stock-out (Day 0) were not included in models comparing tank water and fish skin. In the first column, italics indicates the samples included in the model, and bold indicates the factors that are being tested. If the model contains only fish skin (S) or water samples (W), it is indicated in italics in the second column.
Evading the astrophysical limits on light pseudoscalars
Creators: name: Jain, Pankaj
name: Mandal, Subhayan
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We study the possibility of evading astrophysical bounds on light pseudoscalars. We argue that the solar bounds can be evaded if we have a sufficiently strong self coupling of the pseudoscalars. The required couplings do not conflict with any known experimental bounds. We show that it is possible to find a coupling range such that the results of the recent PVLAS experiment are not in conflict with any astrophysical bounds.
description: 10 pages, 5 figures, minor changes
[Letter from John Stanley Gardiner]
Creators: name: Gardiner, John Stanley
Publisher: name: Unknown
Year: 1902

description: Reply to request saying it is not possible to find any information on the Lithothamnia specimens that had been sent. Just information about Lithothamnia in relation to the formation of coral reefs, but nothing on the individual specimens in the collections from Hulule Male Atoll, Minikoi, Polythema and Polygoa, Suvadiva Addu, Miladumadula, Maldives, Funafuti, Rotuma and Fiji. He has donated all this material to the Botanical Museum in Cambridge. Information is given about where specimens roughly resembling Lithothamnion fornicatum f. robusta and L. colliculosum f. densa were found and where they were dredged.
ANALYZING AGRICULTURAL LANDOWNERS' WILLINGNESS TO INSTALL STREAMSIDE BUFFERS
Creators: name: Lynch, Lori
name: Hardie, Ian W.
name: Parker, Douglas D.
name: Lynch, Lori
name: Hardie, Ian W.
name: Parker, Douglas D.
Publisher: name: Unknown
Year: 2002
Subjects: Environmental Economics and Policy
Land Economics/Use

description: Many watershed organizations have prioritized establishing streamside (riparian) buffers on agricultural land to improve water quality. Using data from a 2000 survey of 500 Maryland landowners, we examine what level of financial incentives they would require to install such buffers for 15 years on a voluntary basis. A random utility model is developed where a landowner is willing to accept the offered contract if he or she receives a higher utility from the incentive payment and buffer installation than from not planting the buffer. Given the development pressure in the Washington D.C./Baltimore corridor, we test whether farmers need more than the agricultural opportunity costs to encumber their land. Higher incentive payments, part-time farming, education, and a Lower Shore location positively influence the respondent=s willingness to install a buffer. Length of the farming horizon, age, and a Southern Maryland location negatively influence the respondent=s willingness.
Additional file 2 of Influences of claywater and greenwater on the skin microbiome of cultured larval sablefish (Anoplopoma fimbria)
Creators: name: Dodd, Emily T.
name: Pierce, Melissa L.
name: Lee, Jonathan S. F.
name: Poretsky, Rachel S.
Publisher: name: figshare
Year: 2020
Subjects: subject: Microbiology
subject: FOS: Biological sciences

description: Additional file 2 PERMANOVA results using adonis function in R statistical software on the Weighted UniFrac distances of larval fish skin and tank water microbial communities that were calculated with UniFrac. Homogeneity of variances was estimated using betadisper and tested using permutest with significant p-values listed in parentheses. The effects of date and treatment were tested on subsets of the data containing samples from only fish skin or tank water. The effect of parental cross was tested on a subset of the data containing only samples from fish skin. Each test was conducted using 1000 permutations. To maintain a balanced design, water samples taken at stock-out (Day 0) were not included in models comparing tank water and fish skin. In the first column, italics indicates the samples included in the model, and bold indicates the factors that are being tested. If the model contains only fish skin (S) or tank water (W) samples, it is indicated in italics in the second column.
[Letter from Johan Nordal Fischer Wille]
Creators: name: Wille, Johan Nordal Fischer
Publisher: name: Unknown
Year: 1902
Subjects: Brøgger
Heydrich, Franz
Svedelius, Nils
Kjellman, Frans Reinhold

description: Expresses the opinion that Heydrich's new paper about the reproduction of the tetraspores of [floridanum] is nonsense. Says that he has examined Svedelius's slides and found out why the specimen has such thick walls in the slide, they are swollen either due to reagents or a dead thallus. Says that Kjellman had abandoned his attempt to create a new systematic principle for the algae, placing them among the phanerogams, after he had read the papers by Wille.
IMPACT OF STEALTH ADVSERTISING ON CONSUMER PURCHASE INTENTION
Creators: name: Amin, Iqra
name: batool, maria
Publisher: name: figshare
Year: 2024
Subjects: classificationCode: 350601
subject: Consumer behaviour
classificationCode: 460105
subject: Applications in social sciences and education
classificationCode: 350605
subject: Marketing management (incl. strategy and customer relations)
classificationCode: 399999
subject: Other education not elsewhere classified

description: The aim of this study is to look at the factors that affect the purchasing intention of the consumers through stealth advertising.
General expression for the dielectronic recombination cross section of polarized ions with polarized electrons
Creators: name: Kupliauskiene, A.
name: Tutlys, V.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Atomic Physics (physics.atom-ph)
subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: A general expression for the differential cross section of dielectronic recombination (DR) of polarized electrons and polarized ions is derived by using usual atomic theory methods and is represented in the form of multiple expansions over spherical tensors. The ways of the application of the general expressions suitable for the specific experimental conditions are outlined by deriving asymmetry parameters of angular distribution of DR radiation in the case of nonpolarized and polarized ions and electrons.
description: 4 pages
RESOURCE ALLOCATION AND ASSET PRICING
Creators: name: Chambers, Robert G.
name: Quiggin, John C.
name: Chambers, Robert G.
name: Quiggin, John C.
Publisher: name: Unknown
Year: 2002
Subjects: Demand and Price Analysis

description: This paper presents a unified treatment of the production and financial decisions available to a firm facing frictionless financial markets and a stochastic production technology under minimal assumptions on the firm's stochastic technology and objective function. The key concept is that of a 'derivative-cost function', which gives the minimal cost (maximal buying price) of constructing an asset by combining financial and real production activities.
Health, Psychosocial, and Social issues emanating from COVID-19 pandemic based on Social Media Comments using Natural Language Processing
Creators: name: Oyebode, Oladapo
name: Ndulue, Chinenye
name: Adib, Ashfaq
name: Mulchandani, Dinesh
name: Suruliraj, Banuchitra
name: Orji, Fidelia Anulika
name: Chambers, Christine
name: Meier, Sandra
name: Orji, Rita
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computation and Language (cs.CL)
subject: Information Retrieval (cs.IR)
subject: Social and Information Networks (cs.SI)
subject: FOS: Computer and information sciences

description: The COVID-19 pandemic has caused a global health crisis that affects many aspects of human lives. In the absence of vaccines and antivirals, several behavioural change and policy initiatives, such as physical distancing, have been implemented to control the spread of the coronavirus. Social media data can reveal public perceptions toward how governments and health agencies across the globe are handling the pandemic, as well as the impact of the disease on people regardless of their geographic locations in line with various factors that hinder or facilitate the efforts to control the spread of the pandemic globally. This paper aims to investigate the impact of the COVID-19 pandemic on people globally using social media data. We apply natural language processing (NLP) and thematic analysis to understand public opinions, experiences, and issues with respect to the COVID-19 pandemic using social media data. First, we collect over 47 million COVID-19-related comments from Twitter, Facebook, YouTube, and three online discussion forums. Second, we perform data preprocessing which involves applying NLP techniques to clean and prepare the data for automated theme extraction. Third, we apply context-aware NLP approach to extract meaningful keyphrases or themes from over 1 million randomly selected comments, as well as compute sentiment scores for each theme and assign sentiment polarity based on the scores using lexicon-based technique. Fourth, we categorize related themes into broader themes. A total of 34 negative themes emerged, out of which 15 are health-related issues, psychosocial issues, and social issues related to the COVID-19 pandemic from the public perspective. In addition, 20 positive themes emerged from our results. Finally, we recommend interventions that can help address the negative issues based on the positive themes and other remedial ideas rooted in research.
On the Positive Geometry of Quartic Interactions III : One Loop Integrands from Polytopes
Creators: name: Jagadale, Mrunmay
name: Laddha, Alok
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Building on the seminal work of Arkani-Hamed, He, Salvatori and Thomas (AHST), we explore the positive geometry encoding one loop scattering amplitude for quartic scalar interactions. We define a new class of combinatorial polytopes that we call pseudo-accordiohedra whose poset structures are associated to singularities of the one loop integrand associated to scalar quartic interactions. Pseudo-accordiohedra parametrize a family of projective forms on the abstract kinematic space defined by AHST and restriction of these forms to the type-D associahedra can be associated to one-loop integrands for quartic interactions. The restriction (of the projective form) can also be thought of as a canonical top form on certain geometric realisations of pseudo-accordiohedra. Our work explores a large class of geometric realisations of the type-D associahedra which include all the AHST realisations. These realisations are based on the pseudo-triangulation model for type-D cluster algebras discovered by Ceballos and Pilaud.
description: 37 pages, 9 figures
Velocity profile of granular flows inside silos and hoppers
Creators: name: Choi, Jaehyuk
name: Kudrolli, Arshad
name: Bazant, Martin Z.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We measure the flow of granular materials inside a quasi-two dimensional silo as it drains and compare the data with some existing models. The particles inside the silo are imaged and tracked with unprecedented resolution in both space and time to obtain their velocity and diffusion properties. The data obtained by varying the orifice width and the hopper angle allows us to thoroughly test models of gravity driven flows inside these geometries. All of our measured velocity profiles are smooth and free of the shock-like discontinuities ("rupture zones") predicted by critical state soil mechanics. On the other hand, we find that the simple Kinematic Model accurately captures the mean velocity profile near the orifice, although it fails to describe the rapid transition to plug flow far away from the orifice. The measured diffusion length $b$, the only free parameter in the model, is not constant as usually assumed, but increases with both the height above the orifice and the angle of the hopper. We discuss improvements to the model to account for the differences. From our data, we also directly measure the diffusion of the particles and find it to be significantly less than predicted by the Void Model, which provides the classical microscopic derivation of the Kinematic Model in terms of diffusing voids in the packing. However, the experimental data is consistent with the recently proposed Spot Model, based on a simple mechanism for cooperative diffusion. Finally, we discuss the flow rate as a function of the orifice width and hopper angles. We find that the flow rate scales with the orifice size to the power of 1.5, consistent with dimensional analysis. Interestingly, the flow rate increases when the funnel angle is increased.
description: 17 pages, 8 figures
DOES INEQUALITY LEAD TO GREATER EFFICIENCY IN THE USE OF LOCAL COMMONS? THE ROLE OF STRATEGIC INVESTMENTS IN CAPACITY
Creators: name: Aggarwal, Rimjhim
name: Narayan, Tulika A.
name: Aggarwal, Rimjhim
name: Narayan, Tulika A.
Publisher: name: Unknown
Year: 2000
Subjects: Resource /Energy Economics and Policy

description: This paper examines the impact of inequality in access to credit on efficiency in extraction from a common resource. A dynamic model is developed, where agents strategically choose the level of sunk capacity and the consequent extraction path. Sunk capacity is a function of cost of credit and serves as a commitment device to deter entry or force exit. Contrary to previous studies based on static settings, our results show that greater inequality does not necessarily lead to greater efficiency in extraction. In particular, we show that under moderate inequality, the resource stock is lower than that under perfect equality.