cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Spin-transfer dynamics in MgO-based magnetic tunnel junctions with an out-of-plane magnetized free layer and an in-plane polarizer
Creators: name: Kowalska, Ewa
name: Sluka, Volker
name: Kákay, Attila
name: Fowley, Ciarán
name: Lindner, Jürgen
name: Fassbender, Jürgen
name: Deac, Alina M.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Here, we present an analytical and numerical model describing the magnetization dynamics in MgO-based spin-torque nano-oscillators with an in-plane magnetized polarizer and an out-of-plane free layer. We introduce the spin-transfer torque asymmetry by considering the cosine angular dependence of the resistance between the two magnetic layers in the stack. For the analytical solution, dynamics are determined by assuming a circular precession trajectory around the direction perpendicular to the plane, as set by the effective field, and calculating the energy integral over a single precession period. In a more realistic approach, we include the bias dependence of the tunnel magnetoresistance, which is assumed empirically to be a piecewise linear function of the applied voltage. The dynamical states are found by solving the stability condition for the Jacobian matrix for out-of-plane static states. We find that the bias dependence of the tunnel magnetoresistance, which is an inseparable effect in every tunnel junction, exhibits drastic impact on the spin-torque nano-oscillator phase diagram, mainly by increasing the critical current for dynamics and quenching the oscillations at high currents. The results are in good agreement with our experimental data published elsewhere.
description: Manuscript: 14 pages, 10 figures
MOESM1 of The role of health and advocacy organisations in assisting female sex workers to gain access to health care in South Africa
Creators: name: Nosipho Makhakhe
name: Meyer-Weitz, Anna
name: Struthers, Helen
name: McIntyre, James
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Biotechnology
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1. Interview guide for key informant interviews.
Measuring the elements of the optical density matrix
Creators: name: Pregnell, K. L.
name: Pegg, D. T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Most methods for experimentally reconstructing the quantum state of light involve determining a quasiprobability distribution such as the Wigner function. In this paper we present a scheme for measuring individual density matrix elements in the photon number state representation. Remarkably, the scheme is simple, involving two beam splitters and a reference field in a coherent state.
description: 6 pages and 1 figure
Time-dependent diffusive interactions between dark matter and dark energy in the context of $k-$essence cosmology
Creators: name: Bandyopadhyay, Abhijit
name: Chatterjee, Anirban
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: We investigated the scenario of time-dependent diffusive interaction between dark matter and dark energy and showed that such a model can be accommodated within the observations of luminosity distance - redshift data in Supernova Ia (SNe Ia) observations. We obtain constrains on different relevant parameters of this model from the observational data. We consider a homogeneous scalar field $ϕ(t)$ driven by a $k-$essence Lagrangian of the from $L = V(ϕ)F(X)$ with constant potential $V(ϕ) = V$, to describe the dynamics of dark energy in this model. Using the temporal behaviour of the FRW scale factor, the equation of state and total energy density of the dark fluid, extracted from the analysis of SNe Ia (JLA) data, we have obtained the time-dependence of the $k-$essence scalar field and also reconstructed form of the function $F(X)$ in the $k-$essence Lagrangian.
description: 14 pages, 7 figures; Accepted for publication in Research in Astronomy and Astrophysics
Northern Ireland Social Attitudes Survey, 1991
Northern Ireland Social Attitudes Survey, 1989-1996
NISA
Creators: name: Social And Community Planning Research
Publisher: name: UK Data Service
Year: 1993

description: The Northern Ireland Social Attitudes (NISA) survey series began in 1989, and was conducted every year in which the British Social Attitudes (BSA) survey was fielded until 1996. Supported initially by the Nuffield Foundation, the Central Community Relations Unit (CCRU) and the Policy Planning Research Unit (PPRU - now the Northern Ireland Statistics and Research Agency), the NISA series is currently funded by all of the main Northern Ireland Departments. NISA has not been conducted since 1996, but was replaced by the Northern Ireland Life and Times Survey series (NILT), held at UKDA under SN:33312, which began in 1998, and its corresponding Young Life and Times Survey (YLT) series (held under GN:33313), which surveys young people aged 12-17 living in the households of adults interviewed for NILT.

Like its companion survey, British Social Attitudes, NISA was designed to complement large-scale government surveys (such as the Continuous Household Survey and the Quarterly Labour Force Survey) which collect mainly factual and behavioural data. Its main purpose was to allow the monitoring of patterns of continuity and change, and the examination of the relative rates at which attitudes, in respect of a range of social issues, change over time. NISA thus allows direct comparison of the attitudes, values and beliefs held by UK citizens on either side of the Irish Sea. Data users should, however, note that the two sets of data cannot be combined to produce UK data.
Geometry of General Hypersurfaces in Spacetime: Junction Conditions
Creators: name: Mars, Marc
name: Senovilla, Jose M. M.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We study imbedded hypersurfaces in spacetime whose causal character is allowed to change from point to point. Inherited geometrical structures on these hypersurfaces are defined by two methods: first, the standard rigged connection induced by a rigging vector (a vector not tangent to the hypersurface anywhere); and a second, more physically adapted, where each observer in spacetime induces a new type of connection that we call the rigged metric connection. The generalisation of the Gauss and Codazzi equations are also given. With the above machinery, we attack the problem of matching two spacetimes across a general hypersurface. It is seen that the preliminary junction conditions allowing for the correct definition of Einstein's equations in the distributional sense reduce to the requirement that the first fundamental form of the hypersurface be continuous. The Bianchi identities are then proven to hold in the distributional sense. Next, we find the proper junction conditions which forbid the appearance of singular parts in the curvature. Finally, we derive the physical implications of the junction conditions: only six independent discontinuities of the Riemann tensor are allowed. These are six matter discontinuities at non-null points of the hypersurface. For null points, the existence of two arbitrary discontinuities of the Weyl tensor (together with four in the matter tensor) are also allowed.
description: Latex, no figures
MOESM2 of Impact of care coordination on oral anticoagulant therapy among patients with atrial fibrillation in routine clinical practice in Japan: a prospective, observational study
Creators: name: Ono, Fumiko
name: Akiyama, Sayako
name: Suzuki, Akifumi
name: Ikeda, Yoshinobu
name: Takahashi, Akira
name: Matsuoka, Hitoshi
name: Sasaki, Masahiro
name: Okamura, Tomonori
name: Yoshihara, Nariaki
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2. Patientsâ satisfaction with care coordination during the pre-campaign and campaign period. Table showing the results of the survey assessing patientsâ satisfaction with care coordination during the pre-campaign and campaign period.
MOESM1 of Improved Morphological and Localized Surface Plasmon Resonance (LSPR) Properties of Fully Alloyed Bimetallic AgPt and Monometallic Pt NPs Via the One-Step Solid-State Dewetting (SSD) of the Ag/Pt Bilayers
Creators: name: Sundar Kunwar
name: Puran Pandey
name: Sanchaya Pandit
name: Sui, Mao
name: Jihoon Lee
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 1: Figure S1â S14. Supplementary materials include the additional AFM and SEM images, EDS spectra and maps, and FTTD simulations of various AgPt and Pt NPs. The datasets used and/or analyzed during the current study are available from the corresponding author upon a reasonable request. Table S1-S2. Summary of geomatical values including Rq, SAR, AH and AD.
Rural Change in Europe : Research Programme on Farm Structures and Pluriactivity - Merged Data, 1987 and 1991; Baseline and Final Data
Baseline and Final Data
Farm Household Adjustment in Western Europe, 1987-1991
Creators: name: Arkleton Trust (Research) Ltd
Publisher: name: UK Data Service
Year: 2000

description: This study sought to reflect the diversity of rural contexts and farm structure across Western Europe. It consists of two surveys - the baseline survey and the final survey.

The baseline survey, conducted in 1987, covered basic conditions, work and income patterns of farm households in different socio-economic situations in Europe with a view to further investigation over the next three years of the reasons, extent and effects of change experienced by some of them at farm, local, regional and national levels with special reference to multiple job-holding.

The final survey was carried out in 1991.

The baseline survey data are held as separate study numbers for each country (see list of constituent studies).

The dataset containing the merged data of the baseline and final surveys for all countries is held as SN:2973.
MOESM1 of Impact of care coordination on oral anticoagulant therapy among patients with atrial fibrillation in routine clinical practice in Japan: a prospective, observational study
Creators: name: Ono, Fumiko
name: Akiyama, Sayako
name: Suzuki, Akifumi
name: Ikeda, Yoshinobu
name: Takahashi, Akira
name: Matsuoka, Hitoshi
name: Sasaki, Masahiro
name: Okamura, Tomonori
name: Yoshihara, Nariaki
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Pharmacology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Hematology

description: Additional file 1. Primary care clinics and corresponding investigators in Daisen and Yokote, Akita, Japan. A list of the 12 primary care clinics associated with the Akita study group.
Looking Beyond the Incumbent: The Effects of Exposing Corruption on Electoral Outcomes
Creators: name: Chong, Alberto E.
name: De La O, Ana
name: Karlan, Dean S.
name: Wantchekon, Leonard
name: Chong, Alberto E.
name: De La O, Ana
name: Karlan, Dean S.
name: Wantchekon, Leonard
Publisher: name: Unknown
Year: 2012
Subjects: subject: Institutional and Behavioral Economics
subject: Political Economy
subject: Public Economics
subject: corruption
subject: accountability
subject: elections
subject: voting
subject: information

description: Does information about rampant political corruption increase electoral participation and the support for challenger parties? Democratic theory assumes that offering more information to voters will enhance electoral accountability. However, if there is consistent evidence suggesting that voters punish corrupt incumbents, it is unclear whether this translates into increased support for challengers and higher political participation. We provide experimental evidence that information about copious corruption not only decreases incumbent support in local elections in Mexico, but also decreases voter turnout, challengers' votes, and erodes voters' identifcation with the party of the corrupt incumbent. Our results suggest that while flows of information are necessary, they may be insufficient to improve political accountability, since voters may respond to information by withdrawing from the political process. We conclude with a discussion of the institutional contexts that could allow increased access to information to promote government accountability.
Asymptotic Dynamics of Breathers in Fermi-Pasta-Ulam Chains
Creators: name: Reigada, R.
name: Sarmiento, A.
name: Lindenberg, Katja
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Adaptation and Self-Organizing Systems (nlin.AO)
subject: FOS: Physical sciences

description: We study the asymptotic dynamics of breathers in finite Fermi-Pasta-Ulam chains at zero and non-zero temperatures. While such breathers are essentially stationary and very long-lived at zero temperature, thermal fluctuations tend to lead to breather motion and more rapid decay.
Ashwell History Census Data Project, 1841-1881; Ashwell, 1841-1881
Ashwell, 1841-1881
Creators: name: Short, C. D.
Publisher: name: UK Data Service
Year: 1993

description: The Ashwell History Data Project is a collaborative project between local and family historians, the computer centre at Hatfield Polytechnic and the staff of the Ashwell Field Studies Centre to create computer files of historical documents for Ashwell and the surrounding area. The data in this study cover 19th century census enumerators' books.
Efficient classical simulation of measurements in optical quantum information
Creators: name: Bartlett, Stephen D.
name: Sanders, Barry C.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We present conditions for the efficient simulation of a broad class of optical quantum circuits on a classical machine: this class includes unitary transformations, amplification, noise, and measurements. Various proposed schemes for universal quantum computation using optics are assessed against these conditions, and we consider the minimum resource requirements needed in any optical scheme to generate optical nonlinear processes and perform universal quantum computation.
description: 4 pages, presented at QCMC'02 (MIT, Boston, USA, July 22-26, 2002)
Near dissociation states for H$_2^+$-He on MRCI and FCI potential energy surfaces
Creators: name: Koner, Debasish
name: Veliz, Juan Carlos San Vicente
name: van der Avoird, Ad
name: Meuwly, Markus
Publisher: name: arXiv
Year: 2019
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A new analytical potential energy surface (PES) has been constructed for H$_2^+$-He using a reproducing kernel Hilbert space (RKHS) representation from an extensive number of $ab initio$ energies computed at the multi-reference and full configuration interaction level of theory. For the MRCI PES the long-range interaction region of the PES is described by analytical functions and is connected smoothly to the short-range interaction region, represented as a RKHS. All ro-vibrational states for the ground electronic state of H$_2^+$-He are calculated using two different methods to determine quantum bound states. Comparing transition frequencies for the near-dissociation states for $ortho$- and $para$-H$_2^+$-He allows assignment of the 15.2 GHz line to a $J=2$ $e/f$ parity doublet of $ortho$-H$_2^+$-He whereas the experimentally determined 21.8 GHz line is only consistent with a $(J=0)$ $\rightarrow$ $(J=1)$ $e/e$ transition in $para$-H$_2^+$-He.
description: 21 pages, 7 figures, 1 supporting information file
English House Condition Survey, 1986: Physical Survey
English House Condition Surveys, 1967-2007
Creators: name: Department Of The Environment, Building Stock Research Division
Publisher: name: UK Data Service
Year: 1995

description: The English House Condition Survey (EHCS) was a national survey of housing in England, commissioned by the Department for Communities and Local Government (DCLG). The survey was originally called the National House Condition Survey and covered England and Wales. The information obtained through the survey provides an accurate picture of the type, condition and energy efficiency of housing in England, the people living there, and their views on housing and their neighbourhoods. The survey covers all tenure types.

The EHCS ran quinquennially from 1967-2001. From 2002, the survey moved to a continuous basis and the data were provided as a two-year rolling sample of approximately 16,000 cases (i.e. the data for 2003 cover information collected from April 2002 to March 2004, data for 2004 comprise information collected from April 2003 to March 2005). From April 2008, the EHCS merged with the Survey of English Housing (SEH) (available at the UK Data Archive under GN 33277) to form the English Housing Survey (EHS) (available at the Archive under GN 33422).

Further information can be found on the English House Condition Survey and English Housing Survey web pages.

 The 1986 survey was the fifth in the five-yearly series. These surveys provide the Department of the Environment with the major source of information to assist in the development and monitoring of policies on the repair and improvement of the housing stock.

The Interview and Market Value Surveys are available from the UKDA under SN 3209.
Considering the importance of transport to the wellbeing of Māori social housing residents
Creators: name: Russell, Els
name: McKerchar, Christina
name: Berghan, James
name: Curl, Angela
name: Fitt, Helen
Publisher: name: University of Canterbury Data Repository
Year: 2024
Subjects: classificationCode: 330413
subject: Urban planning and health
classificationCode: 330409
subject: Transport planning
classificationCode: 420606
subject: Social determinants of health
classificationCode: 420602
subject: Health equity

description: Māori living in social housing bear the burden of mobility inequity through limited access to transport. Māori social housing residents rely on multiple forms of transport to access their surrounding urban environments. There are concerns surrounding Māori inclusion in novel transport solutions. Successful transport solutions come from a place of co-design, with Indigenous peoples as partners in decision-making.
Chondrina marjae Kokshoorn & Gittenberger 2010, spec. nov.
Creators: name: Kokshoorn, Bas
name: Gittenberger, Edmund
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Chondrinidae
Chondrina
Chondrina marjae

description: Chondrina marjae spec. nov. (pl. 12 fig.G)
Material.— Spain, Valencia, S-side of Xativa; 160 m alt.; UTM YJ1317.
Type series: RMNH 109863 / holotype, 103250/ 25 paratypes.
Description.—Shell brownish, moderately slender conical to rather thickset; with very fine radial striae, which are more obsolete and irregular at the lower whorls. Aperture about as high as broad, with a broadly rounded base, without teeth. Apertural lip somewhat thickened, not reflexed or flattened. Shell height 5.2–5.7 mm; width 2.4–2.6 mm.
 Notes.—Conchologically this species is similar to C. farinesii, differing mainly by the more roundish aperture, which is somewhat higher than broad in C. farinesii. For the time being we restrict this species to the sample for which DNA data are available. Taking the diversity in Chondrina species into account, we refrain from presenting facts about the actual range of this species on the basis of conchological characters only.
 Derivatio nominis.—The epithet marjae refers to Ms. Marja van Schoor, who contributed substantially to our knowledge of the Iberian chondrinids by an unpublished report on these snails, written on the basis of material that she collected and analysed together with Ms. I. Erkelens.
description: Published as part of Kokshoorn, Bas & Gittenberger, Edmund, 2010, Chondrinidae taxonomy revisited: New synonymies, new taxa, and a checklist of species and subspecies (Mollusca: Gastropoda: Pulmonata) 2539, pp. 1-62 in Zootaxa 2539 (1) on page 35, DOI: 10.11646/zootaxa.2539.1.1, http://zenodo.org/record/10094211
POLARIS - Note méthodologique
Creators: name: Barth, Laura
name: Vong, Lilita
name: Ulrich, Alexis
name: Guiraud, Stéphanie
name: Rossi, Matthieu
name: Guéry, Julie
name: Accornero-Picon, Alessandra
name: Charbonnel, Eric
name: Bianchimani, Olivier
Publisher: name: Zenodo
Year: 2021
Subjects: Science participative
Méthodologie
Reccomandations
Ecologie marine
Gestion

description: Cette note méthodologique s’adresse principalement aux décideurs et gestionnaires d’espaces marins méditerranéens pour lesquels la plongée sous-marine constitue un outil de suivi du milieu en utilisant les sciences participatives (protocoles d’observation standardisés, formation des observateurs, traitement et utilisation des données). Elle pourra être également utile à toute institution s’intéressant à l’utilisation de plateformes d’observation telles que POLARIS pour alimenter des stratégies de gestion de territoire à différentes échelles d’action. Enfin, cette note guidera les structures souhaitant utiliser les sciences participatives en plongée sous-marine en détaillant différents aspects scientifiques et techniques (protocoles de suivis, logistique, traitement et transfert des données, animation, formation, etc.). Cette note méthodologique a pour objectifs de (i) transcrire l’expérience acquise à travers POLARIS afin (ii) d’émettre des recommandations pour la mise en place de programmes similaires utilisant les sciences participatives en plongée pour (iii) permettre une reproductibilité et transférabilité de la démarche à plus large échelle, auprès d’aires marines protégées. L’entrée « plongeurs » sera privilégiée ici, car peu d’éléments existent sur les sciences participatives en plongée sous-marine. Cette note a été rédigée de manière commune par l’ensemble des partenaires et du Comité de Pilotage du programme POLARIS. Elle présente notamment des recommandations ainsi qu’une analyse critique des applications des sciences participatives avec la plateforme POLARIS et proposera alors une base pour la mise en place d’un observatoire citoyen du milieu marin et littoral à l’échelle de la métropole marseillaise.
On Rossby waves and vortices with differential rotation
Creators: name: Tagger, Michel
Publisher: name: arXiv
Year: 2001
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We present a simplified model for linearized perturbations in a fluid with both differential rotation and differential vorticity. Without the latter the model reduces to the classical Shearing Sheet used in the description of spiral density waves in astrophysical disks. Without the former it reduces to the $β$-plane approximation, used in the description of Rossby waves. Retaining both, our model allows one in general to discuss the coupling between density waves and Rossby waves, resulting in what is known as the ``corotation resonance'' for density waves. Here we derive, as a first application of this model, the properties of Rossby waves in a differentially rotating disk. We find that their propagation is quenched by differential rotation: after a limited number of oscillations, a Rossby wave collapses to a singular vortex, as fluid elements are sheared apart by differential rotation. In a keplerian disk, this number of oscillations is always lower than one. We also describe how, in a similar manner, a vortex is sheared in a very short time.
description: to appear in A&A
FACTORS AFFECTING MASS MEDIA FP PROGRAMS ON CURRENT USE OF CONTRACEPTION IN BANGLADESH
Creators: name: Islam, M. Amirul
name: Kabir, M.
name: Islam, M. Amirul
name: Kabir, M.
Publisher: name: Unknown
Year: 1998
Subjects: Research and Development/Tech Change/Emerging Technologies

description: In this paper the significant role of mass media and factors affecting it have been investigated. . Mass media has played an important role in the success of Bangladesh family planning programs. Different mass media are employed to disseminate FP-MCH messages. Evaluation of the impact of mass media exposures on FP-MCH programs would provide new directions and strategy for its effectiveness. In this study a total of 3100 currently married women from all over Bangladesh were interviewed. The aim was to identify the impact of the mass media on family planning programs. The findings indicate that radio is still the most reached medium than television and newspaper. Multinomial logistic regression analysis was used to identify the factors, which have significant effects on exposure to family planning messages. The significant factors that have influence on exposure to family planning mass media messages are education, type of place of residence, employment status and membership of women in development groups. The analysis further revealed that age, number of living children, religion, radio ownership, approval of family planning by the respondents and their husbands, are the important determinants affecting use of modern contraception as opposed to no method users. The study findings have policy implications in the sense that mass media and its contents will play an important role in the future MCH-FP programs and in achieving demographic goals.
title: Wo stehen wir? Und wohin gehen wir? Eine E-Mail-Korrespondenz über Feminismus, Literatur und Gender
Creators: name: Fleig, Anne
name: Nieberle, Sigrid
Publisher: name: Humboldt-Universität zu Berlin
Year: 2024
Subjects: subject: Feminismus
subject: Gegenwartsliteratur
subject: Gender Studies
subject: Identität
subject: Literaturwissenschaft
subject: ddc:300

description: In einem persönlichen und lockeren E-Mail-Wechsel skizzieren die Autorinnen aktuelle Entwicklungen der literaturwissenschaftlichen Gender Studies, die sich im Hinblick auf manche interdisziplinäre und anerkennungspolitische Kontexte derzeit abzeichnen. Zwei Aspekte treten als zentrale Themen zutage: Zum einen sind sich die Autorinnen einig, dass sich der Feminismus weiterhin als streitbar erweisen sollte; zum anderen arbeitet eine merkliche Tendenz des Polarisierens und Vereindeutigens (von geschlechtlicher Identität, von ideologischen Positionen, von Identitätsbekenntnissen) gegen die Schreibweisen der Literatur, die ihren Leser*innen stets rhetorisch wie ästhetisch motivierte Ambiguitäten zumutet. Beiden Tendenzen lässt sich nur mit Offenheit und Bereitschaft zum Dialog begegnen.
Generalized Ashtekar variables for Palatini f(R) models
Creators: name: Bombacigno, Flavio
name: Boudet, Simon
name: Montani, Giovanni
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We consider special classes of Palatini f(R) theories, featured by additional Loop Quantum Gravity inspired terms, with the aim of identifying a set of modified Ashtekar canonical variables, which still preserve the SU(2) gauge structure of the standard theory. In particular, we allow for affine connection to be endowed with torsion, which turns out to depend on the additional scalar degree affecting Palatini f(R) gravity, and in this respect we successfully construct a novel Gauss constraint. We analyze the role of the additional scalar field, outlining as it acquires a dynamical character by virtue of a non vanishing Immirzi parameter, and we describe some possible effects on the area operator stemming from such a revised theoretical framework. Finally, we compare our results with earlier studies in literature, discussing differences between metric and Palatini approaches. It is worth noting how the Hamiltonian turns out to be different in the two cases. The results can be reconciled when the analysis is performed in the Einstein frame.
description: 27 pages, comments are welcome
Plug-in vehicles and the future of road infrastructure funding in the United States
Creators: name: Dumortier, Jerome
name: Kent, Matthew
name: Payton, Seth
name: Dumortier, Jerome
name: Kent, Matthew
name: Payton, Seth
Publisher: name: Unknown
Year: 2015
Subjects: subject: Environmental Economics and Policy
subject: Resource /Energy Economics and Policy
subject: Plug-in hybrid vehicles
subject: battery electric vehicles
subject: gasoline tax
subject: diesel tax
subject: fuel consumption
subject: Highway Trust Fund
subject: taxation

description: In the United States, the road infrastructure funding is declining due to an increase in fuel efficiency and the non-adjustment of fuel taxes to inflation. Propositions to tax plug-in vehicles have been proposed or implemented in several states. Those propositions are contrary to policies to promote the sale of fuel efficient vehicles. This paper assesses (1) the magnitude of the decline in federal fuel tax revenue caused by plug-in vehicles and (2) quantifies the amount of revenue that could be generated from a federal plug-in vehicle registration fee. We find that the contribution of plug-in vehicles to the decline of the federal fuel tax revenue is at most 1.56% and that the majority of the shortfall can be attributed to the non-adjustment of the fuel tax rate by 2040. An additional tax of $50-$200 per plug-in vehicle per year in the reference case would generate $188-$745 million in 2040 which represents an increase of 1.7% - 6.7% in federal fuel tax revenue compared to no tax. The lesson for policy makers is that plug-in vehicles do not contribute significantly to the funding shortfall in the short- and medium-run and a supplemental tax would generate a small percentage of additional revenue.
title: Extinction risk controlled by interaction of long-term and short-term climate change
Creators: name: Mathes, Gregor H.
name: van Dijk, Jeroen
name: Kiessling, Wolfgang
name: Steinbauer, Manuel J.
Publisher: name: University of Bayreuth
Year: 2021
Subjects: subject: extinction
subject: fossil
subject: climate
subject: paleobiology
subject: paleontology
subject: biodiversity
subject: 500
subject: 550
subject: 560
subject: 570

description: Assessing extinction risk from climate drivers is a major goal of conservation science. Few studies, however, include a long-term perspective of climate change. Without explicit integration, such long-term temperature trends and their interactions with short-term climate change may be so dominant that they blur or even reverse the apparent direct relationship between climate change and extinction. Here we evaluate how observed genus-level extinctions of arthropods, bivalves, cnidarians, echinoderms, foraminifera, gastropods, mammals and reptiles in the geological past can be predicted from the interaction of long-term temperature trends with short-term climate change. We compare synergistic palaeoclimate interaction (a short-term change on top of a long-term trend in the same direction) to antagonistic palaeoclimate interaction such as long-term cooling followed by short-term warming. Synergistic palaeoclimate interaction increases extinction risk by up to 40%. The memory of palaeoclimate interaction including the climate history experienced by ancestral lineages can be up to 60 Myr long. The effect size of palaeoclimate interaction is similar to other key factors such as geographic range, abundance or clade membership. Insights arising from this previously unknown driver of extinction risk might attenuate recent predictions of climate-change-induced biodiversity loss.
Chondrina ingae Kokshoorn & Gittenberger 2010, spec. nov.
Creators: name: Kokshoorn, Bas
name: Gittenberger, Edmund
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Mollusca
Gastropoda
Stylommatophora
Chondrinidae
Chondrina
Chondrina ingae

description: Chondrina ingae spec. nov. (pl. 12 fig. F)
Material.— Spain, Alicante, S of Biar, along road into the Sierra de Biar; 960 m alt.; UTM XH9475.
Type series: RMNH 109865 / holotype, 103221/ 19 paratypes.
Description.—Shell dark brown, moderately slender conical to rather thickset; sculptured with irregular wrinckles or riblets. Aperture somewhat higher than broad, without teeth. Apertural lip inconspicuously thickened. Shell height 5.7–6.1 mm; width 2.6–2.8 mm.
 Notes.—This species differs conchologically from congeneric ones by the dark brown colour in combination with a toothless aperture, and an irregularly sculptured surface. Taking the diversity in Chondrina species into account, we refrain from presenting facts about the actual range of this species on the basis of conchological characters only.
 Derivatio nominis.—The epithet ingae refers to Ms. Inge Erkelens, who contributed substantially to our knowledge of the Iberian chondrinids by an unpublished report on these snails, written on the basis of material that she collected and analysed together with Ms. M. van Schoor.
description: Published as part of Kokshoorn, Bas & Gittenberger, Edmund, 2010, Chondrinidae taxonomy revisited: New synonymies, new taxa, and a checklist of species and subspecies (Mollusca: Gastropoda: Pulmonata) 2539, pp. 1-62 in Zootaxa 2539 (1) on page 35, DOI: 10.11646/zootaxa.2539.1.1, http://zenodo.org/record/10094211
On a Classical, Geometric Origin of Magnetic Moments, Spin-Angular Momentum and the Dirac Gyromagnetic Ratio
Creators: name: Newman, Ezra T.
Publisher: name: arXiv
Year: 2002
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: By treating the real Maxwell Field and real linearized Einstein equations as being imbedded in complex Minkowski space, one can interpret magnetic moments and spin-angular momentum as arising from a charge and mass monopole source moving along a complex world line in the complex Minkowski space. In the circumstances where the complex center of mass world-line coincides with the complex center of charge world-line, the gyromagnetic ratio is that of the Dirac electron.
description: 17 pages
Crack Nucleation in the Adhesive Wear of an Elastic-Plastic Half-Space
Creators: name: Frérot, Lucas
name: Anciaux, Guillaume
name: Molinari, Jean-François
Publisher: name: arXiv
Year: 2019
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: The detachment of material in an adhesive wear process is driven by a fracture mechanism which is controlled by a critical length-scale. Previous efforts in multi-asperity wear modeling have applied this microscopic process to rough elastic contact. However, experimental data shows that the assumption of purely elastic deformation at rough contact interfaces is unrealistic, and that asperities in contact must deform plastically to accommodate the large contact stresses. We therefore investigate the consequences of plastic deformation on the macro-scale wear response using novel elastoplastic contact simulations. The crack nucleation process at a rough contact interface is analyzed in a comparative study with a classical $J_2$ plasticity approach and a saturation plasticity model. We show that plastic residual deformations in the $J_2$ model heighten the surface tensile stresses, leading to a higher crack nucleation likelihood for contacts. This effect is shown to be stronger when the material is more ductile. We also show that elastic interactions between contacts can increase the likelihood of individual contacts nucleating cracks, irrespective of the contact constitutive model. This is supported by a statistical approach we develop based on a Greenwood--Williamson model modified to take into account the elastic interactions between contacts and the shear strength of the contact junction.
description: 18 pages, 12 figures
Supporting Data for article "Atomistic simulations of athermal irradiation creep and swelling of copper and tungsten at high dose"
Creators: name: Reali, Luca
Publisher: name: Zenodo
Year: 2025

description: This repository contains data and scripts associated to the journal article

 

Reali, L., Boleininger, M., Mason, D. R., & Dudarev, S. L. (2025) "Atomistic simulations of athermal irradiation creep and swelling of copper and tungsten at high dose", Acta Materialia

https://doi.org/10.1016/j.actamat.2025.120814

 

Please cite this article if you find these files useful for your work.

 

 

In this repository you can find:

 

 - moltenspheres.zip

 

Here you find the moltenspheres.py file that uses LAMMPS+mpi4py to drive the simulations, as well as the necessary files for running it. See the README therein.

See also https://github.com/Luca-R27/moltenspheres.git for a (possibly) updated version of the script.

The script is distributed on an "AS IS" basis without warranties or conditions of any kind, either express or implied.

 

 - paper_results

 

Here you find the raw data that were used to generate many of the figures. 

- Subfolder "arcdpa" contains the number of interstitials and vacancies after a single molten sphere insertion.

- Subfolders Cu and W contain the raw data on:

     - supercell size and pressure tensor (naming convention with material, sphere radius, number of insertions per step and number of insertions per frame that was printed (e.g. 25 spheres and dump data every 30 minimisation steps is 25ps_750pf), and stress state, namely u for unstresses, t for tension and so on, plus the cases under shear where stress was flipped, e.g. W_R5_7k280k_s500MPa_fl10dpa.dat)

     - DXA log files

     - Information on voids (files ending in "vac"), namely the number of monovacancies, voids and total vacacancy content (see Mason et al. (2021) https://doi.org/10.1103/PhysRevMaterials.5.095403)

 - Zipped LAMMPS dump files of the final snapshot at 1 dpa for the low-energy irradiation case, all six stress states in both Cu and W.

 - DXA zipped folders containing .ca files from OVITO, one for each simulation for high-energy irradiation of Cu and W, of the entire evolution from 0.0 to 1.0 dpa.

 

In general for this folder, filenames contain element (W, Cu), the radius of the molten sphere, and the stress state (u for unstressed, t for tension, c for compression, ht for hydrostatic tension, s for shear, ts for triple shear)

 

The dose increments in the various log files and in the DXA snapshots vary:

 

  W,  R = 5  A or equivalent 90  eV PKA: 0.00248 dpa per snapshot

  W,  R = 21 A or equivalent 7  keV PKA: 0.00394 dpa per snapshot

  Cu, R = 8  A or equivalent 100 eV PKA: 0.00896 dpa per snapshot

  Cu, R = 28 A or equivalent 5  keV PKA: 0.00933 dpa per snapshot

 

Also note that only for W simulations with R = 5 A the results are often broken down into 3 files, where in the first (low dose) the increment is 0.00248 dpa, in the second (medium) it is 2*0.00248 dpa, in the third (high dose) is is 3*0.00248 dpa.
Survey of Mortgage Lenders, 1992
Survey of Mortgage Lenders, 1992-
Creators: name: Department Of The Environment
Publisher: name: UK Data Service
Year: 1993

description: The Survey of Mortgage Lenders (SML) was launched on 1st April 1992 to succeed the 5% Sample Survey of Building Society Mortgage Completions (BSM) (See GN:33191). The aims were to improve the survey in three principal ways:

a) to broaden the range of institutions surveyed to incorporate other mortgage lenders in addition to building societies and Abbey National. With the entry of the high street banks and then the centralised lenders into the mortgage market, information provided by the building societies no longer represented the whole market in the way it did when the BSM was set up in the 1960s.

b) to extend its coverage to include further advances, remortgages and top-up loans in addition to first mortgages.

c) to increase the level of detail on the questionnaire especially with respect to the characteristics of the mortgage loan.

An important consideration for users of the data is that the SML figures allow continuity with the BSM survey results to be maintained for a reasonable period.
MOESM1 of Scaling up interventions: findings and lessons learned from an external evaluation of Nigerâ s National Initiative to reduce postpartum hemorrhage
Creators: name: Meighan Mary
name: Ayisha Diop
name: Sheldon, Wendy
name: Aichatou Yenikoye
name: Winikoff, Beverly
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Molecular Biology
subject: Neuroscience
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1. Sample size estimation to evaluate 10% change in the provision of uterotonic treatment between phase 1 and phase 2 at evaluation health facilities
Youth Cohort Study of England and Wales, 1987-1994; Cohort Three, Sweep One to Four
Cohort Three, Sweep One to Four
YCS; Youth Cohort Study of England and Wales
Creators: name: Courtenay, G.
Publisher: name: UK Data Service
Year: 1996

description: The Youth Cohort Study (YCS) is a major programme of longitudinal research designed to monitor the behaviour and decisions of representative samples of young people aged sixteen upwards as they make the transition from compulsory education to further or higher education, or to the labour market. It tries to identify and explain the factors which influence post-16 transitions, for example, educational attainment, training opportunities, experiences at school. To date the YCS covers thirteen cohorts and over forty surveys. The first cohort was first surveyed in 1985 and the thirteenth in 2007. The questionnaires have been designed, over the years, to be broadly comparable, but external changes and shifts in policy interest have brought about changes - some minor, some fundamental. Cohorts One to Twelve cover England and Wales but a change to the methodology means that from Cohort Thirteen, data cover England only. For further details of the methodology and coverage, see the documentation.

The UK Data Archive currently holds data for the cohorts listed below:
Cohort One (SN 3093) surveyed those eligible to leave school in 1983-84

Cohort Two (SN 3094) surveyed those eligible to leave school in 1984-85

*Cohort Three (SN 3012) surveyed those eligible to leave school in 1985-86

Cohort Four (SN 3107) surveyed those eligible to leave school in 1987-88

Cohort Five (SN 3531) surveyed those eligible to leave school in 1989-90

Cohort Six (SN 3532) surveyed those eligible to leave school in 1990-91

Cohort Seven (SN 3533) surveyed those eligible to leave school in 1992-93

Cohort Eight (SN 3805) surveyed those eligible to leave school in 1995-96

Cohort Nine (SN 4009) surveyed those eligible to leave school in 1996-97

Cohort Ten (SN 4571) surveyed those eligible to leave school in 1998-99

Cohort Eleven (SN 5452) surveyed those eligible to leave school in 2000-01

Cohort Twelve (SN 5830) surveyed those eligible to leave school in 2002-03

Cohort Thirteen (SN 6024) surveyed those eligible to leave school in 2005-06
*Some teaching materials using the data from Cohort Three have been developed. Details are available from the Teaching Resources and Materials for Social Scientists (TRAMSS) website.
Thermodynamic analysis and optimization for steam methane reforming hydrogen production system using high temperature gas-cooled reactor pebble-bed module
Creators: name: Zhang, Yongle
name: Hu, Guang
name: Zhang, Huang
name: Liu, Qianfeng
name: Zhou, Junbo
Publisher: name: Taylor & Francis
Year: 2021
Subjects: Physical Sciences not elsewhere classified
Pharmacology
Biotechnology
Chemical Sciences not elsewhere classified
Biological Sciences not elsewhere classified

description: Thermodynamic analysis and optimization for the steam methane reforming (SMR) hydrogen production system using the high temperature gas-cooled reactor pebble-bed module power plant (HTR-PM) are investigated in this work. Based on the thermodynamic-equilibrium model, parameters of thermal efficiency (η), hydrogen production (YH2/methane), methane conversion rate (X1) and carbon monoxide conversion rate (X2) are calculated under the specified temperature (T), pressure (P) and water-to-carbon ratio (S). The influence of S, T, P on η, YH2/methane, X1 and X2 is then analyzed. It considers a wide range of operating conditions (T = 400–1200°C; P = 2–7 MPa and S = 2–10). The results show that the influence of on the system performance is significant. When T > 950°C, η and YH2/methane increases slowly (4 < S ≤ 6) or reduces (S > 6). For the operating conditions of HTR-PM (P = 7 MPa; S = 6 and T = 950°C), the maximum value of η is 63.44% and the maximum YH2/methane is 3.3 mol. At last, system optimized parameters are illustrated.
Random walk on the symplectic forms over a finite field
Creators: name: He, Jimmy
Publisher: name: arXiv
Year: 2019
Subjects: subject: Probability (math.PR)
subject: Representation Theory (math.RT)
subject: FOS: Mathematics
subject: Primary 60J10, Secondary 60B15 20C33

description: Random transvections generate a walk on the space of symplectic forms on $\mathbf{F}_q^{2n}$. The main result is establishing cutoff for this Markov chain. After $n+c$ steps, the walk is close to uniform while before $n-c$, it is far from uniform. The upper bound is proved by explicitly finding and bounding the eigenvalues of the random walk. The lower bound is found by showing that the support of the walk is exponentially small if only $n-c$ steps are taken. The result can be viewed as a $q$-deformation of a result of Diaconis and Holmes on a random walk on matchings.
description: v2 appendix incorporated into main text, minor changes. 20 pages, 1 figure. Comments are welcome!
MOESM1 of The impact of sequencing depth on the inferred taxonomic composition and AMR gene content of metagenomic samples
Creators: name: H. Gweon
name: Shaw, Liam
name: Swann, Jeremy
name: Maio, Nicola
name: AbuOun, Manal
name: Niehus, Rene
name: Hubbard, Alasdair
name: Bowes, Mike
name: Bailey, Mark
name: Peto, Tim
name: Hoosdally, Sarah
name: A. Walker
name: Sebra, Robert
name: Crook, Derrick
name: Anjum, Muna
name: Read, Daniel
name: Stoesser, Nicole
Publisher: name: figshare
Year: 2019
Subjects: subject: Microbiology
subject: FOS: Biological sciences
subject: Genetics
subject: Evolutionary Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Marine Biology

description: Additional file 1: Figure S1. Comparison of taxonomic classification output to simulated ground truth for CAMI gut metagenome dataset. (a) Taxonomic composition inferred using Kraken, Centrifuge, compared to ground truth, for ten simulated samples. The top 20 most abundant genera across all samples are shown in colour. (b) Relative species abundances compared to ground truth values for Kraken (blue) and Centrifuge (red). Lines show a linear best fit.