cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Merger impacts on investor expectations : An event study for Australia (Working Paper)
Creators: name: Diepold, Brian D.
name: Feinberg, Robert
name: Round, David K.
name: Tustin, Jeremy
Publisher: name: American University
Year: 2023

description: In previous work (Feinberg and Round, 2005), little evidence of share-price response to Australian price-fixing investigations was found. However, these investigations often involve a small part of a company’s operations and antitrust penalties have tended to be relatively small; in fact, some weak support was found for a greater response by investors when penalties were expected to be more significant. Mergers, on the other hand, clearly represent a much more significant event, and we would anticipate a clearer share-price response both to announced mergers and to associated antitrust challenges. While such studies have been done in other countries (primarily for the US), we know of no prior research of this sort for Australia. In this paper we focus on a sample of about 50 mergers and acquisitions involving Australian companies from 1996-2003, examining the impact on share prices of the announcement of these mergers both on the firms involved and on rival firms. For those which were challenged by the Australian antitrust enforcers, we also consider the impact of the announcement of such a challenge.
Patterns and determinants of entry in rural county banking markets
Creators: name: Feinberg, Robert
Publisher: name: American University
Year: 2023

description: Recent work on entry has focused on structural determinants of the number of firms in a market rather than on the role of profits; profits are viewed as both difficult to measure accurately and less relevant in explaining equilibrium numbers of firms in a market. In this paper I consider 115 rural markets in the U.S., and both describe and explain patterns of bank and thrift entry over the past 10 years, with particular interest in the decisions of top bank holding companies to enter rural markets and the influence their presence has on entry of smaller banking institutions. The paper explores several dimensions of entry and competition in rural banking markets. One descriptive feature of interest is the surprisingly small number of markets in which monopoly banking is likely to be a concern. In terms of explaining both numbers of banks across markets and gross and net entry within markets, market size and its growth seem to be major factors, consistent with recent literature. The role of leading bank holding companies is found to be important in stimulating entry of smaller rivals. This result is consistent with earlier work suggesting that merger and acquisition activity tends to stimulate de novo entry, while also with the view that large firm presence may be a signal to potential entrants of future growth prospects in the market.
Rotation periods from the inflection point in the power spectrum of stellar brightness variations: II. The Sun
Creators: name: Amazo-Gómez, E. M.
name: Shapiro, A. I.
name: Solanki, S. K.
name: Krivova, N. A.
name: Kopp, G.
name: Reinhold, T.
name: Oshagh, M.
name: Reiners, A.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: Young and active stars generally have regular, almost sinusoidal, patterns of variability attributed to their rotation, while the majority of older and less active stars, including the Sun, have more complex and non-regular light-curves which do not have clear rotational-modulation signals. Consequently, the rotation periods have been successfully determined only for a small fraction of the Sun-like stars observed by transit-based planet-hunting missions, such as CoRoT, Kepler, and TESS. This suggests that only a small fraction of such systems have been properly identified as solar-like analogs. We apply a new method for determining rotation periods of low-activity stars, like the Sun. The method is based on calculating the gradient of the power spectrum (GPS) of stellar brightness variations and identifying a tell-tale inflection point in the spectrum. The rotation frequency is then proportional to the frequency of that inflection point. In this paper test this GPS method against available photometric records of the Sun. We apply GPS, autocorrelation functions, Lomb-Scargle periodograms, and wavelet analyses to the total solar irradiance (TSI) time series obtained from the Total Irradiance Monitor (TIM) on the Solar Radiation and Climate Experiment (SORCE) and the Variability of solar IRradiance and Gravity Oscillations (VIRGO) experiment on the SOlar and Heliospheric Observatory (SoHO) missions. We analyse the performance of all methods at various levels of solar activity. We show that the GPS method returns accurate values of solar rotation independently of the level of solar activity. In particular, it performs well during periods of high solar activity, when TSI variability displays an irregular pattern and other methods fail. Our results suggest that the GPS method can successfully determine the rotational periods of stars with both regular and non-regular light-curves.
The Uncertain Future of the New START Treaty
Creators: name: Pifer, Steven
name: Mizin, Victor
name: Jaworek, Patricia
Publisher: name: IFSH
Year: 2023
Subjects: international relations
arms control

description: The New START Treaty is the last remaining treaty limiting nuclear weapons between the United States and the Russian Federation. This issue brief lays out the developments that led to the suspension of the treaty by Vladimir Putin in February 2023 and explores consequences of a future without a successor treaty in 2026. One key issue is the ability of the two sides, absent the treaty’s verification measures, to monitor with confidence the number of the other side’s deployed strategic warheads. Without those measures, if one side or the other loses confidence that the other is observing the New START limit on deployed strategic warheads, there could be growing pressure to formally withdraw from the treaty and increase the number of strategic nuclear warheads. In the longer term, moving above New START's limits on deployed strategic warheads and strategic delivery systems could fuel a three-party strategic arms race among the United States, Russia and China that would be difficult to arrest. All parties (including European states) have an interest to avoid this scenario.
Guaranteed estimates for the length of branches of periodic orbits for equivariant Hopf bifurcation
Creators: name: Hooton, E.
name: Balanov, Z.
name: Rachinskii, D.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Dynamical Systems (math.DS)
subject: FOS: Mathematics
subject: 37G15, 37G15

description: Connected branches of periodic orbits originating at a Hopf bifurcation point of a differential system are considered. A computable estimate for the range of amplitudes of periodic orbits contained in the branch is provided under the assumption that the nonlinear terms satisfy a linear estimate in a ball. If the estimate is global, then the branch is unbounded. The results are formulated in an equivariant setting where the system can have multiple branches of periodic orbits characterized by different groups of symmetries. The non-local analysis is based on the equivariant degree method, which allows us to handle both generic and degenerate Hopf bifurcations. This is illustrated by examples.
title: Molecular physiology of plasma cell differentiation
Creators: name: Masciarelli, Silvia
Publisher: name: The Open University
Year: 2008

description: Plasma cells are central to an effective immune response, being the sole producers of the antibodies, yet they can cause severe disease in autoimmunity and multiple myeloma. Therefore their differentiation and survival must be tightly regulated. In this work I investigated some of the mechanisms regulating plasma cell differentiation and life span. The differentiation of a long lived B cell to a short lived plasma cell entails a profound structural and functional metamorphosis finalized to the massive production of immunoglobulins (Ig). Exuberant Ig synthesis causes several types of stress in differentiating plasma cells. My work deals with the characterization of the C/EBP transcription factor CHOP in plasma cell differentiation. Comparing differentiation of B cells harvested from chop-l- mice to wt cells I found a mild phenotype, consisting in an increased accumulation of intracellular IgM aggregates and a decreased secretion of this antibody class, in vitro and in vivo. These findings reveal a novel role for CHOP in ensuring optimal functionality of the secretory pathway in the course of plasma cell differentiation. CHOP is involved in the differentiation of various cell types, where it interacts with other members of the C/EBP family favoring or impeding differentiation and it is an important factor in the ER stress response named unfolded protein response (UPR), in which it plays a pro-apoptotic role in most of the systems tested. I extended my investigation on the functions of CHOP in B cells by examining the resistance to ER stress-induced apoptosis in wt and in chop-l- cells. Surprisingly, I observed that in B cells CHOP expression in the UPR plays an anti-apoptotic function. Altogether my data suggest a cell-type specific role for CHOP in B cells and add information on the multi-faceted role of this transcription factor.

Most plasma cells exhibit a short life span. The mechanisms at the basis of plasma cell apoptosis are still obscure. I propose that multiple forms of stress, linked to the massive antibody production, contribute to plasma cell death.
On the valence-bond solid phase of the crossed-chain quantum spin model
Creators: name: Brenig, Wolfram
name: Grzeschik, Matthias
Publisher: name: arXiv
Year: 2003
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a series expansion based on the flow-equation method we study the ground state energy and the elementary triplet excitations of a generalized model of crossed spin-1/2 chains starting from the limit of decoupled quadrumers. The triplet dispersion is shown to be very sensitive to the inter-quadrumer frustration, exhibiting a line of almost complete localization as well as lines of quantum phase transitions limiting the stability of the valence-bond solid phase. In the vicinity of the checkerboard-point a finite window of exchange couplings is found with a non-zero spin-gap, consistent with known results from exact diagonalization. The ground state energy is lower than that of the bare quadrumer case for all exchange couplings investigated. In the limiting situation of the fully frustrated checkerboard magnet our results agree with earlier series expansion studies.
description: 8 pages, 7 figures
Approximate pre-classical solutions in loop quantum cosmology
Creators: name: Connors, Seth
name: Khanna, Gaurav
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this paper we introduce a numerical approximation technique to obtain pre-classical solutions to models of loop quantum gravity. In particular, we apply the technique to vacuum Bianchi I cosmological models and recover known solutions. We also present a pre-classical solution to the Bianchi I LRS model with cosmological constant, which has not appeared elsewhere.
description: 10 pages, 5 figures
Isolate record for VAFB-ISO-831
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-831. The artifact is a biface point.
Merger impacts on investor expectations : An event study for Australia (Working Paper)
Creators: name: Diepold, Brian D.
name: Feinberg, Robert
name: Round, David K.
name: Tustin, Jeremy
Publisher: name: American University (Washington, D.C.). Department of Economics
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: In previous work (Feinberg and Round, 2005), little evidence of share-price response to Australian price-fixing investigations was found. However, these investigations often involve a small part of a company’s operations and antitrust penalties have tended to be relatively small; in fact, some weak support was found for a greater response by investors when penalties were expected to be more significant. Mergers, on the other hand, clearly represent a much more significant event, and we would anticipate a clearer share-price response both to announced mergers and to associated antitrust challenges. While such studies have been done in other countries (primarily for the US), we know of no prior research of this sort for Australia. In this paper we focus on a sample of about 50 mergers and acquisitions involving Australian companies from 1996-2003, examining the impact on share prices of the announcement of these mergers both on the firms involved and on rival firms. For those which were challenged by the Australian antitrust enforcers, we also consider the impact of the announcement of such a challenge.
On Razamat's $A_2$ and $A_3$ kernel identities
Creators: name: Ruijsenaars, Simon
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Quantum Algebra (math.QA)
subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences
subject: FOS: Mathematics

description: In recent work on superconformal quantum field theories, Razamat arrived at elliptic kernel identities of a new and striking character: They relate solely to the root systems $A_2$ and $A_3$ and have no coupling type parameters \cite{Ra18}. The pertinent 2- and 3-variable Hamiltonians are analytic difference operators and the kernel functions are built from the elliptic gamma function. Razamat presented compelling evidence for the validity of these identities, and checked them to a certain order in a power series expansion. This paper is mainly concerned with analytical proofs of these identities. More specifically, we furnish a complete proof of the identities for the $A_2$ elliptic case and for the $A_3$ hyperbolic case, and consider several specializations. We also discuss the implications the kernel identities might have for a Hilbert space scenario involving common eigenvectors of the Hamiltonians and the integral operators associated with the kernel functions.
CP Violation and Flavor Mixing in Technicolor Theories
Creators: name: Martin, Adam
name: Lane, Kenneth
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Vacuum alignment in technicolor models provides an attractive origin for the quarks' CP violation and, possibly, a natural solution for the strong-CP problem of QCD. We discuss these topics in this paper. Then we apply them to determine plausible mixing matrices for left and right-handed quarks. These matrices determine the Cabibbo-Kobayashi-Maskawa matrix as well as new mixing angles and phases that are observable in extended technicolor (ETC) and topcolor (TC2) interactions. We determine the contributions of these new interactions to CP-violating and mixing observables in the K^0, B_d and B_s systems. Consistency with mixing and CP violation in the K^0 system requires assuming that ETC interactions are electroweak generation conserving even if technicolor has a walking gauge coupling. Large ETC gauge boson masses and small intergenerational mixing then result in negligibly small ETC contributions to B-meson mixing and CP violation and to Re(epsilon'/epsilon). We confirm our earlier strong lower bounds on TC2 gauge boson masses from B_d--B_d-bar mixing. We then pay special attention to the possibility that current experiments indicate a deviation from standard model expectations of the values of sin(2 beta) measured in B_d -> J/psi K_S, phi K_S, eta' K_S, and pi K_S, studying the ability of TC2 to account for these. We also determine the TC2 contribution to Delta M_{B_s} and to Re(epsilon'/epsilon), and find them to be appreciable.
description: 44 pages, Latex, with 14 postscript figures. Version that will appear in Physical Review D. Error in Delta M_B corrected, leading to increased lower bounds on Z' and coloron masses and modest changes in calculated sin(2 beta). A small error in Re(epsilon'/epsilon) was also corrected
Patterns and determinants of entry in rural county banking markets
Creators: name: Feinberg, Robert
Publisher: name: American University and U.S. International Trade Commission
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: Recent work on entry has focused on structural determinants of the number of firms in a market rather than on the role of profits; profits are viewed as both difficult to measure accurately and less relevant in explaining equilibrium numbers of firms in a market. In this paper I consider 115 rural markets in the U.S., and both describe and explain patterns of bank and thrift entry over the past 10 years, with particular interest in the decisions of top bank holding companies to enter rural markets and the influence their presence has on entry of smaller banking institutions. The paper explores several dimensions of entry and competition in rural banking markets. One descriptive feature of interest is the surprisingly small number of markets in which monopoly banking is likely to be a concern. In terms of explaining both numbers of banks across markets and gross and net entry within markets, market size and its growth seem to be major factors, consistent with recent literature. The role of leading bank holding companies is found to be important in stimulating entry of smaller rivals. This result is consistent with earlier work suggesting that merger and acquisition activity tends to stimulate de novo entry, while also with the view that large firm presence may be a signal to potential entrants of future growth prospects in the market.
Isolate record for VAFB-ISO-859
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-859. The artifact is a secondary flake.
Quantum mechanics of stationary states of particles in external singular spherically and axially symmetric gravitational and electromagnetic fields
Creators: name: Gorbatenko, M. V.
name: Neznamov, V. P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: The report considers the interaction of scalar particles, photons and fermions with the gravitational and electromagnetic Schwarzschild, Reissner-Nordström, Kerr and Kerr-Newman fields. The behavior of effective potentials in the relativistic Schrödinger-type second-order equations is analyzed. It was found that the quantum theory is incompatible with the hypothesis of the existence of classical black holes with event horizons of zero thickness that were predicted based on solutions of the general relativity (GR) with zero and non-zero cosmological constant $Λ$. The alternative may be presented by compound systems, i.e., collapsars with fermions in stationary bound states.
description: 9 pages, 1 figure
title: Motivation: Pupil Voice, Power and Identity
Creators: name: Tomos, Delyth Wyn
Publisher: name: The Open University
Year: 2008

description: This study presents empirical research conducted in a Welsh secondary school where motivation was examined through pupil voice using Wenger's (1998) Communities of Practice framework. Consideration was given to social factors that impinge upon a pupil's motivation to participate in learning. Fourteen pupils were interviewed as a collective case study, following which a thematic analysis was conducted. Pupils recognised the influences of family, friendship groups and past learning experiences as strong determinants of learning participation. Power and identity were found to be crucial components of motivation, where a pupil's motivation to learn or failure to participate in learning may both be considered as manifestations of a pupil's empowerment.
Quality competition, pricing-to-market and non-tariff measures : A unified framework for the analysis of bilateral unit values (Working Paper)
Creators: name: Ferrantino, Michael J.
name: Feinberg, Robert
name: Deason, Laura
Publisher: name: American University
Year: 2023

description: This paper seeks to present a unified framework for several factors that have been independently studied as determinants of unit values in international trade: product differentiation by quality (which suggests that unit values should be positively correlated with exporters' per capita income), pricing-to-market (which suggests they should be positively correlated with importers' per capita income), and non-tariff measures (which suggests that remaining residuals may contain evidence of trade barriers). On a large sample of bilateral unit values for 2005, we find that about 60 percent of all HS-6 products demonstrate both significant quality-ladder effects and pricing-to-market effects, with quality-ladder effects predominating in importance. Distance- related effects appearing directly in prices appear significantly larger than one would expect as a result of shipping margins. We also rank importers by the remaining unexplained variation in import prices, and examine whether these variations are plausibly related to non-tariff measures.
European Open Science Cloud: The Portuguese adoption plan
Creators: name: Cardoso, João
Publisher: name: Zenodo
Year: 2023
Subjects: ROSSIO Infrastructure, DARIAH-EU, Digital Research Infrastructures, FAIR Principles, Funding, European Open Science Cloud

description: Presentation by João Cardoso (FCT/ FCCN) at the International Workshop ROSSIO: "Building a Digital Research Infrastructure: ROSSIO Case Study" (16-17 fev.23), Organized by Amélia Aguiar Andrade, Daniel Alves & Helena Cabeleira (ROSSIO Infrastructure), held at NOVA-FCSH (Campus da Avenida de Berna, Auditório B3 - Torre B). This event was aimed at researchers, teachers, students and other specialists, agents, professionals and communities in the fields of Social Sciences, Humanities and Arts.
ESM Figures and tables from Personality traits change after an opportunity to mate
Creators: name: MONESTIER, Chloé
name: Bell, Alison M.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Physiology
subject: FOS: Biological sciences
subject: Ecology
subject: 60801 Animal Behaviour

description: Supplemental information, figures and tables about the material and methods used, as well as some results obtained not included in the main article
Rotations associated with Lorentz boosts
Creators: name: Baskal, S.
name: Kim, Y. S.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Mathematical Physics (math-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: It is possible to associate two angles with two successive non-collinear Lorentz boosts. If one boost is applied after the initial boost, the result is the final boost preceded by a rotation called the Wigner rotation. The other rotation is associated with Wigner's O(3)-like little group. These two angles are shown to be different. However, it is shown that the sum of these two rotation angles is equal to the angle between the initial and final boosts. This relation is studied for both low-speed and high-speed limits. Furthermore, it is noted that the two-by-two matrices which are under the responsibility of other branches of physics can be interpreted in terms of the transformations of the Lorentz group, or vice versa. Classical ray optics is mentioned as a case in point.
description: LaTeX, 16 Pages, 4 epsfigures
title: 01_1499
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: Laboratoire de Médiévistique Occidentale de Paris
subject: LaMOP

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
Nonradial oscillations of quark stars
Creators: name: Sotani, Hajime
name: Harada, Tomohiro
Publisher: name: arXiv
Year: 2003
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recently, it has been reported that a candidate for a quark star may have been observed. In this article, we pay attention to quark stars with radiation radii in the reported range. We calculate nonradial oscillations of $f$-, $w$- and $w_{\rm II}$-modes. Then, we find that the dependence of the $f$-mode quasi-normal frequency on the bag constant and stellar radiation radius is very strong and different from that of the lowest $w_{\rm II}$-mode quasi-normal frequency. Furthermore we deduce a new empirical formula between the $f$-mode frequency of gravitational waves and the parameter of the equation of state for quark stars. The observation of gravitational waves both of the $f$-mode and of the lowest $w_{\rm II}$-mode would provide a powerful probe for the equation of state of quark matter and the properties of quark stars.
description: 13 pages, 6 figures, accepted for publication in Phys.Rev.D
(2+1) dimensional cosmological models in f(R; T) gravity with $Λ$(R; T)
Creators: name: Islam, Safiqul
name: Kumar, Praveen
name: Khadekar, G. S.
name: Das, Tapas K
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We intend to study a new class of cosmological models in $f(R, T)$ modified theories of gravity, hence define the cosmological constant $Λ$ as a function of the trace of the stress energy-momentum-tensor $T$ and the Ricci scalar $R$, and name such a model "$Λ(R, T)$ gravity" where we have specified a certain form of $Λ(R, T)$. $Λ(R, T)$ is also defined in the perfect fluid and dust case. Some physical and geometric properties of the model are also discussed. The pressure, density and energy conditions are studied both when $Λ$ is a positive constant and when $Λ=Λ(t)$, i.e a function of cosmological time, t. We study the behaviour of some cosmological quantities such as Hubble and deceleration parameters. The model is innovative in the sense that it has been described in terms of both $R$ and $T$ and display a better understanding of the cosmological observations.
description: 10 pages, 10 figures
Chandra observations of five ultraluminous X-ray sources in nearby galaxies
Creators: name: Roberts, T. P.
name: Warwick, R. S.
name: Ward, M. J.
name: Goad, M. R.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We report the results of a programme of dual-epoch Chandra ACIS-S observations of five ultraluminous X-ray sources (ULXs) in nearby spiral galaxies. All five ULXs are detected as unresolved, point-like X-ray sources by Chandra, though two have faded below the 10^39 erg/s luminosity threshold used to first designate these sources as ULXs. Using this same criterion, we detect three further ULXs within the imaged regions of the galaxies. The ULXs appear to be related to the star forming regions of the galaxies, indicating that even in ``normal'' spiral galaxies the ULX population is predominantly associated with young stellar populations. A detailed study of the Chandra ACIS-S spectra of six of the ULXs shows that five are better described by a powerlaw continuum than a multi-colour disc blackbody model, though there is evidence for additional very soft components to two of the powerlaw continua. The measured photon indices in four out of five cases are consistent with the low/hard state in black hole binaries, contrary to the suggestion that powerlaw-dominated spectra of ULXs originate in the very high state. A simple interpretation of this is that we are observing accretion onto intermediate-mass black holes, though we might also be observing a spectral state unique to very high mass accretion rates in stellar-mass black hole systems. Short-term flux variability is only detected in one of two epochs for two of the ULXs, with the lack of this characteristic arguing that the X-ray emission of this sample of ULXs is not dominated by relativistically-beamed jets. The observational characteristics of this small sample suggest that ULXs are a distinctly heterogeneous source class.
description: 19 pages, 8 figures, accepted for publication in MNRAS. Version including full resolution figures available from http://www.star.le.ac.uk/~tro/papers/fiveulxs.pdf
Supplementary Methods and Materials from Genetic evidence of widespread variation in ethanol metabolism among mammals: revisiting the ‘myth' of natural intoxication
Creators: name: Janiak, Mareike C.
name: Swellan L. Pinto
name: Duytschaever, Gwen
name: Carrigan, Matthew A.
name: Melin, Amanda D.
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Ecology

description: Supplementary methods, materials, and results
Is there Evidence for Flat Cores in the Halos of Dwarf Galaxies?: The Case of NGC 3109 and NGC 6822
Creators: name: Valenzuela, Octavio
name: Rhee, George
name: Klypin, Anatoly
name: Governato, Fabio
name: Stinson, Gregory
name: Quinn, Thomas
name: Wadsley, James
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Two well studied dwarf galaxies -- NGC 3109 and NGC 6822 -- present some of the strongest observational support for a flat core at the center of galactic dark matter (DM) halos. We use detailed cosmologically motivated numerical models to investigate the systematics and the accuracy of recovering parameters of the galaxies. Some of our models match the observed structure of the two galaxies remarkably well. Our analysis shows that the rotation curves of these two galaxies are instead quite compatible with their DM halos having steep cuspy density profiles. The rotation curves in our models are measured using standard observational techniques. The models reproduce the rotation curves of both galaxies, the disk surface brightness profiles as well as the profile of isophotal ellipticity and position angle. The models are centrally dominated by baryons; however, the dark matter component is globally dominant. The simulated disk mass is marginally consistent with a stellar mass-to-light ratio in agreement with the observed colors. We show that non-circular motions combined with gas pressure support and projection effects results in a large underestimation of the circular velocity in the central $\sim 1$ kpc region, creating the illusion of a constant density core. Although the systematic effects mentioned above are stronger in barred systems, they are also present in axisymetric disks. Our results strongly suggest that there is no contradiction between the observed rotation curves in dwarf galaxies and the cuspy central dark matter density profiles predicted by Cold Dark Matter models.
description: Accepted for publication in the ApJ. New discussion, figures and one appendix. High resolution version at:http://www.astro.washington.edu/octavio/N3109_paper.ps.gz
Supplementary material 1 from Change in geomagnetic field intensity alters migration-associated traits in a migratory insect
Creators: name: Guijun Wan
name: Ruiying Liu
name: Chunxu Li
name: Jinglan He
name: Weidong Pan
name: Sword, Gregory A.
name: Hu, Gao
name: Fajun Chen
Publisher: name: The Royal Society
Year: 2020
Subjects: subject: Neuroscience
subject: Ecology
subject: FOS: Biological sciences
subject: 60801 Animal Behaviour

description: Detailed material and methods
Quality competition, pricing-to-market and non-tariff measures : A unified framework for the analysis of bilateral unit values (Working Paper)
Creators: name: Ferrantino, Michael J.
name: Feinberg, Robert
name: Deason, Laura
Publisher: name: Office of Economics, U.S. International Trade Commission
Year: 2023
Subjects: classificationCode: 38
subject: Economics

description: This paper seeks to present a unified framework for several factors that have been independently studied as determinants of unit values in international trade: product differentiation by quality (which suggests that unit values should be positively correlated with exporters' per capita income), pricing-to-market (which suggests they should be positively correlated with importers' per capita income), and non-tariff measures (which suggests that remaining residuals may contain evidence of trade barriers). On a large sample of bilateral unit values for 2005, we find that about 60 percent of all HS-6 products demonstrate both significant quality-ladder effects and pricing-to-market effects, with quality-ladder effects predominating in importance. Distance- related effects appearing directly in prices appear significantly larger than one would expect as a result of shipping margins. We also rank importers by the remaining unexplained variation in import prices, and examine whether these variations are plausibly related to non-tariff measures.
Funding opportunities for Digital Research Infrastructures and FAIR principles
Creators: name: Abrantes, Marta
Publisher: name: Zenodo
Year: 2023
Subjects: ROSSIO Infrastructure, DARIAH-EU, Digital Research Infrastructures, FAIR Principles, Funding

description: Presentation by Marta Abrantes (FCT/ ESFRI) at the International Workshop ROSSIO: "Building a Digital Research Infrastructure: ROSSIO Case Study" (16-17 fev.23), Organized by Amélia Aguiar Andrade, Daniel Alves & Helena Cabeleira (ROSSIO Infrastructure), held at NOVA-FCSH (Campus da Avenida de Berna, Auditório B3 - Torre B). This event was aimed at researchers, teachers, students and other specialists, agents, professionals and communities in the fields of Social Sciences, Humanities and Arts.
Supersymmetric Godel-type Universe in four Dimensions
Creators: name: Caldarelli, Marco M.
name: Klemm, Dietmar
Publisher: name: arXiv
Year: 2003
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We generalize the classification of all supersymmetric solutions of pure N=2, D=4 gauged supergravity to the case when external sources are included. It is shown that the source must be an electrically charged dust. We give a particular solution to the resulting equations, that describes a Goedel-type universe preserving one quarter of the supersymmetries.
description: 6 pages, Latex. v2: references and footnote added. v3: introduction expanded, minor corrections, references added. Final version
Generalized potential for apparent forces: the Coriolis effect
Creators: name: Benedetto, Elmo
name: Bochicchio, Ivana
name: Corda, Christian
name: Feleppa, Fabiano
name: Laserra, Ettore
Publisher: name: arXiv
Year: 2020
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: It is well known, from Newtonian physics, that apparent forces appear when the motion of masses is described by using a non-inertial frame of reference. The generalized potential of such forces is rigorously analyzed focusing on their mathematical aspects.
description: 8 pages, accepted for publication in Eur. J. Phys
Conservative Formulations of General Relativistic Radiative Transfer
Creators: name: Cardall, Christian Y.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Accurate accounting of particle number and 4-momentum in radiative transfer may be facilitated by the use of transport equations that allow transparent conversion between volume and surface integrals in both spacetime and momentum space. Such conservative formulations of general relativistic radiative transfer in multiple spatial dimensions are presented, and their relevance to core-collapse supernova simulations described.
description: 4 pages. Talk presented at MG10, Rio de Janeiro, Brazil, 20-26 July 2003. To be published in Proceedings of the Tenth Marcel Grossmann Meeting on General Relativity, edited by M. Novello, S. Perez-Bergliaffa, and R. Ruffini, World Scientific, Singapore, 2005
Export Promotion Programs Help U.S. Products Compete in World Markets
Creators: name: Ackerman, Karen Z.
name: Ackerman, Karen Z.
Publisher: name: Unknown
Year: 1993
Subjects: Agricultural and Food Policy
International Relations/Trade

description: Global competition for consumer food dollars is fierce. Governments and agricultural producers from many countries fund and implement sophisticated export promotions costing hundreds of millions of dollars. The mix of government and industry involvement differs by country, but the objective remains the same: to increase agricultural exports. The United States participates in trade negotiations and implements a variety of export programs to develop global markets for U.S. products. Bilateral and multilateral trade agreements help U.S. exporters increase market access to certain foreign markets by reducing import quotas and tariffs. U.S. export market-development programs assist exporters to counter subsidized competition and help importers finance purchases of U.S. agricultural products. The U.S. Government also collaborates with agricultural producers and processors to increase global consumers' awareness of the quality of U.S. products. This last group of programs is categorized as nonprice promotions.
Tracking the Gust Fronts of Convective Cold Pools
Creators: name: Fournier, Marielle B.
name: Haerter, Jan O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: It is increasingly acknowledged that cold pools can influence the initiation of new convective cells. Yet, the full complexity of convective organization through cold pool interaction is poorly understood. This lack of understanding may partially be due to the intricacy of the dynamical pattern formed by precipitation cells and their cold pools. Additionally, how exactly cold pools interact is insufficiently known. To better understand this dynamics, we develop a tracking algorithm for cold pool gust fronts. Rather than tracking thermodynamic anomalies, which do not generally coincide with the gust front boundaries, our approach tracks the dynamical cold pool outflow. Our algorithm first determines the locus of the precipitation event. Second, relative to this origin and for each azimuthal bin, the steepest gradient in the near-surface horizontal radial velocity $v_r$ is employed to determine the respective locus of the cold pool gust front edge. Steepest $v_r$-gradients imply largest updraft velocities, hence strongest dynamical triggering. Results are compared to a previous algorithm based on the steepest gradient in temperature --- highlighting the benefit of the method described here in determining dynamically active gust front regions. Applying the method to a range of numerical experiments, the algorithm successfully tracks an ensemble of cold pools. A linear relation emerges between the peak rain intensity of a given event and maximal $v_r$ for its associated cold pool gust front --- a relation found to be nearly independent of the specific sensitivity experiment.
The Child and Adult Care Food Program Lends Unique Support
Creators: name: Matsumoto, Masao
name: Matsumoto, Masao
Publisher: name: Unknown
Year: 1993
Subjects: Food Consumption/Nutrition/Food Safety
Teaching/Communication/Extension/Profession

description: The Child and Adult Care Food Program (CACFP) provides money and food to nonresidential child care and adult day care centers and family day care homes to serve nutritious meals and snacks. In June 1992, the program served 1.6 million children at 186,400 sites and 30,800 adults at 1,060 sites. During the 1980's, this program had the largest growth of all food assistance programs. Between 1981 and 1992, total costs increased nearly threefold, from $339.7 million to $1.1 billion (table 1).
Free Electron Laser Generation of X-Ray Poincaré Beams
Creators: name: Morgan, Jenny
name: Hemsing, Erik
name: McNeil, Brian W. J.
name: Yao, Alison
Publisher: name: arXiv
Year: 2020
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: An optics-free method is proposed to generate X-ray radiation with spatially variant states of polarization via an afterburner extension to a Free Electron Laser (FEL). Control of the polarization in the transverse plane is obtained through the overlap of different coherent transverse light distributions radiated from a bunched electron beam in two consecutive orthogonally polarised undulators. Different transverse profiles are obtained by emitting at a higher harmonic in one or both of the undulators. This method enables the generation of beams structured in their intensity, phase, and polarization - so-called Poincaré beams - at high powers with tunable wavelengths. Simulations are used to demonstrate the generation of two different classes of light with spatially inhomogeneous polarization - cylindrical vector beams and full Poincaré beams.
description: 10 pages, 3 figures
Decoherence due to nodal quasiparticles in d-wave qubits
Creators: name: Fominov, Ya. V.
name: Golubov, A. A.
name: Kupriyanov, M. Yu.
Publisher: name: arXiv
Year: 2003
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the Josephson junction between two d-wave superconductors, which is discussed as an implementation of a qubit. We propose an approach that allows to calculate the decoherence time due to an intrinsic dissipative process: quantum tunneling between the two minima of the double-well potential excites nodal quasiparticles which lead to incoherent damping of quantum oscillations. The decoherence is weakest in the mirror junction, where the contribution of nodal quasiparticles corresponds to the superohmic dissipation and becomes small at small tunnel splitting of the energy level in the double-well potential. For available experimental data, we estimate the quality factor.
description: 5 pages, 3 EPS figures; the style file jetpl.cls is included. Version 2: minor corrections
Isolate record for VAFB-ISO-826
Creators: name: Holloway, Corinne
Year: 1900
Subjects: subject: Santa Barbara (County)
valueUri: https://core.tdar.org/browse/geographic-keyword/3486/santa-barbara-county
subject: Vandenberg Air Force Base (VAFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85469/vandenberg-air-force-base-vafb
subject: Vandenberg Space Force Base (VSFB)
valueUri: https://core.tdar.org/browse/geographic-keyword/85584/vandenberg-space-force-base-vsfb
subject: California (State / Territory)
valueUri: https://core.tdar.org/browse/geographic-keyword/1484/california-state-territory
subject: Chipped Stone
valueUri: https://core.tdar.org/browse/material-type/2/chipped-stone
subject: Reconnaissance / Survey
valueUri: https://core.tdar.org/browse/investigation-type/7/reconnaissance-survey

description: This document is the isolated find record for VAFB-ISO-826. The artifacts are two flake fragments.
An investigation into the commonality of the aptitudes of operators in the lasting and making departments of boot and shoe manufacture
Creators: name: A.J.B. Wentworth
Publisher: name: Loughborough University
Year: 2021
Subjects: subject: 150399 Business and Management not elsewhere classified
subject: FOS: Economics and business

description: An investigation into the commonality of the aptitudes of operators in the lasting and making departments of boot and shoe manufacture
Convective Self-Aggregation as a Cold-Pool Driven Critical Phenomenon
Creators: name: Haerter, Jan O.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: Atmospheric and Oceanic Physics (physics.ao-ph)
subject: FOS: Physical sciences

description: Convective self-aggregation is when thunderstorm clouds cluster over a constant temperature surface in radiative convective equilibrium. Self-aggregation was implicated in the Madden-Julian Oscillation and hurricanes. Yet, numerical simulations succeed or fail at producing self-aggregation, depending on modeling choices. Common explanations for self-aggregation invoke radiative effects, acting to concentrate moisture in a sub-domain. Interaction between cold pools, caused by rain evaporation, drives reorganization of boundary layer moisture and triggers new updrafts. We propose a simple model for aggregation by cold pool interaction, assuming a local number density $ρ(\mathbf{r})$ of precipitation cells, and that interaction scales quadratically with $ρ(\mathbf{r})$. Our model mimics global energy constraints by limiting further cell production when many cells are present. The phase diagram shows a continuous phase transition between a continuum and an aggregated state. Strong cold pool-cold pool interaction gives a uniform convective phase, while weak interaction yields few and independent cells. Segregation results for intermediate interaction strength.