cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Simple Analytics of Transferable Production Quota: Implications for the Marginal Cost of Ontario Milk Production
Creators: name: Chen, Kevin Z.
name: Meilke, Karl D.
name: Chen, Kevin Z.
name: Meilke, Karl D.
Publisher: name: Unknown
Year: 1996
Subjects: Livestock Production/Industries

description: Using the fact that separate markets exist for used and unused quota, this paper derives a formula to compute the marginal cost of the milk production using a competitive dynamic optimization model. It is showed that, under a perfect competitive quota market, the difference between unused quota and used quota prices gives an exact measure of rental value of quota and thus marginal cost. Policy risk is showed to have no effect on the calculation of equilibrium rental value of quota. The formula is modified to allow for the presence of a transfer assessment. It is showed that the effect of transfer assessment on the calculation of equilibrium rental value of quota depends on the elasticities of demand and supply for quota as well as the level of the transfer assessment. Using empirically estimated elasticities of demand and supply for quota, above modified formula is applied to compute the marginal costs of Ontario milk production over the period 1980/81 to 1994/95. While it represents an improvement over Barichello's approach, the measured marginal costs are not totally satisfactory. The problem lies in the fact that the monthly rental rates are unstable both within the dairy year and across the time series. The results here suggest that one must be cautious in the use of the difference between unused and used quota prices as a measure of rental rate.
[Brev til DKNVS]
Creators: name: Friele, Joachim
name: Det Kongelige Norske Videnskabers Selskab (DKNVS)
Publisher: name: Unknown
Year: 1852

description: Vedr. verket om norske land- og ferskvannsmollusker
description: Se også j.nr. 1852:007. Polydoc nr. 1: 3721. Polydoc nr. 2: 2811.
Brane Worlds in Collision
Creators: name: Gibbons, G. W.
name: Lu, H.
name: Pope, C. N.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Astrophysics (astro-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: We obtain an exact solution of the supergravity equations of motion in which the four-dimensional observed universe is one of a number of colliding D3-branes in a Calabi-Yau background. The collision results in the ten-dimensional spacetime splitting into disconnected regions, bounded by curvature singularities. However, near the D3-branes the metric remains static during and after the collision. We also obtain a general class of solutions representing $p$-brane collisions in arbitrary dimensions, including one in which the universe ends with the mutual annihilation of a positive-tension and negative-tension 3-brane.
description: RevTex, 4 pages, 1 figure, typos and minor errors corrected
857: Theodore George Sheppard
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Theodore George Sheppard was the stepfather of the contributor, who was adopted by him as a child. Theodore was born in 1894, and joined the army at the start of the war, when he was twenty years old. He worked as a medical doctor, and during the Battle of the Somme was helping injured soldiers behind the front line. Luckily, he survived the war and returned to his family who lived near Kent once it was over. In 1914, he received a tobacco box which was issued to everyone in the British army by Princess Mary.
Investment Analysis of Agri-Food Ventures: What Risk Premia are Appropriate? The Silence of the Literature
Creators: name: Unterschultz, James R.
name: Quagrainie, Kwamena K.
name: Unterschultz, James R.
name: Quagrainie, Kwamena K.
Publisher: name: Unknown
Year: 1996
Subjects: Agribusiness
Risk and Uncertainty

description: Financial principles of project investment analysis deal with the cost and benefit flows over time. Invariably, the correct future cash flows and exact risks are unknown. The agricultural academic literature devotes substantial energy to discussing the estimation of the cash flows but it is relatively silent on applied estimation of risk. Empirical studies on agri-food ventures have made little or no attempt to estimate appropriate risk adjusted discount rates or other risk measures. Choice of discount rate has been arbitrary. Thus little guidance has been given to practitioners analysing agri-food investments as to the appropriate risk adjusted discounts rates. The Capital Market Line provides a relatively straightforward way to calculate risk premiums for project investments by non-diversified investors. These risk premiums can then be used in Net Present Value investment analysis.
Analysis of Indian Medical Tourism literature using a bibliometric and narrative-based approach
Creators: name: Ghosh, Amartya
name: VK, Satya Prasad
Publisher: name: Journal of Tourism & Development
Year: 2022

description: India, among the developing countries, is a popular medical tourism destination for international medical patients looking for low-cost yet quality health care. The Medical Tourism discipline has a small body of literature, and scholarly research on India's attractiveness and potential as a top medical tourism destination is particularly scarce. The goal of this study, employing bibliometric analysis as a method, aims to identify the most influential research produced by academic stakeholders who have contributed to this field. The Bibliometrix - R package is used to analyze peer-reviewed journal articles indexed in Scopus and Web of Science databases published between 2011 and 2021 to achieve the study's objectives. The bibliometric study reveals the most cited documents and authors in the Indian medical tourism (MT) discipline, the top journals that publish MT-related papers, and the keywords and sub-themes that appear in the studies. Furthermore, since the Covid-19 pandemic has severely impacted the MT sector, the study also refers to secondary data sources such as articles and published reports from government, ministries, and consulting firms to gain insight into future trends that will likely affect international medical tourists seeking treatment in India.
description: Journal of Tourism & Development, vol. 38 (2022)
Extended Camassa-Holm Hierarchy and Conserved Quantities
Creators: name: Ivanov, Rossen I.
Publisher: name: arXiv
Year: 2006
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: FOS: Physical sciences

description: An extension of the Camassa-Holm hierarchy is constructed in this letter. The conserved quantities of the hierarchy are studied and a recurrent formula for the integrals of motion is derived.
description: 13 pages
SMS in PACE 2020
Creators: name: Korhonen, Tuukka
Publisher: name: arXiv
Year: 2020
Subjects: subject: Data Structures and Algorithms (cs.DS)
subject: FOS: Computer and information sciences

description: We describe SMS, our submission to the exact treedepth track of PACE 2020. SMS computes the treedepth of a graph by branching on the small minimal separators of the graph.
description: 3 pages, 3 appendix pages, 0 figures. Submitted as a solver description of a solver in Parameterized Algorithms and Computational Experiments Challenge 2020
Transfer learning extensions for the probabilistic classification vector machine
Creators: name: Raab, Christoph
name: Schleif, Frank-Michael
Publisher: name: arXiv
Year: 2020
Subjects: subject: Machine Learning (cs.LG)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences

description: Transfer learning is focused on the reuse of supervised learning models in a new context. Prominent applications can be found in robotics, image processing or web mining. In these fields, the learning scenarios are naturally changing but often remain related to each other motivating the reuse of existing supervised models. Current transfer learning models are neither sparse nor interpretable. Sparsity is very desirable if the methods have to be used in technically limited environments and interpretability is getting more critical due to privacy regulations. In this work, we propose two transfer learning extensions integrated into the sparse and interpretable probabilistic classification vector machine. They are compared to standard benchmarks in the field and show their relevance either by sparsity or performance improvements.
description: arXiv admin note: text overlap with arXiv:1907.01343
862: Second Lieutenant Wilfred Edmund Elliot (photograph)
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Wilfred Elliot was an officer in the Dorset Regiment. Whilst waiting for transfer for the Royal Flying Corps, he was killed by shellfire near Thiepval during the Battle of the Somme.
How soliton- anti soliton di quark pairs signify an Einstein constant dominated cosmology and facilitate reconstruction of initial dark matter contributions to CMB
Creators: name: Beckwith, A. W.
Publisher: name: arXiv
Year: 2005
Subjects: subject: General Physics (physics.gen-ph)
subject: FOS: Physical sciences

description: We review the results of a model of how nucleation of a new universe occurs, assuming a di quark identification for soliton-anti soliton constituent parts of a scalar field. The intial potential system employed is semi classical in nature, becoming non-classical at the end of chaotic inflation at the same time cosmological expansion is dominated by the Einstein cosmological constant. We use Scherrer's derivation of a sound speed being zero during initial inflationary cosmology, and cange it afterwards as the slope of the scalar field moves away from a thin wall approximation. All this is to aid in a data reconstruction problem of how to account for the initial origins of CMB due to dark matter since effective field theories as presently constructed require a cut off value for applicability of their potential structure. This is often at the cost of, especially in early universe theoretical models, of clearly defined baryogenesis, and of a well defined mechanism of phase transitions. The material below is now a proposal, in part accepted as a point of discussion as a white paper (appropriately) submitted to the Dark Energy Task Force, in its mission to advise (through its parent committees) the NSF, NASA and DOE. This was for helping to select both ground-based and space-based techniques for analyzing data as well as recommending the science requirements for a space-based dark energy mission.
description: 38 pages,3 figures. Contains material of a white paper proposal accepted in June 28,2005, by the DETF committee headed by Dr. Edward Kolb to review science requirements for a dark energy mission. Combines both a submitteed white paper to that committee plus the analytical derivation of the potential suggested in the data reconstruction scheme of this document
title: Analyse des Aufgabenspektrums "Bauen im Bestand" und Entwicklung einer Themenlandkarte mit Zuordnung der Verantwortlichkeiten
Creators: name: Seyfert, Nadine
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Bestand
subject: Bestandsaufnahme
subject: Altbaumodernisierung
subject: Bauablauf
subject: Bauablaufplanung
subject: 620

description: Ziel der Arbeit ist es, die Breite des Aufgabengebietes Bauen im Bestand zu analysieren und grafisch aufzuwerten. In einem Verantwortlichkeitskataster werden in Anlehnung an die HOAI die Aufgaben während eines Bestandsvorhabens den einzelnen Beteiligten zugeordnet. Die Bestandsaufnahme als entscheidenden Bestandteil eines Bestandsprojektes wird näher erläutert und beschrieben. Einige Besonderheiten in der Vorbereitung und Überwachung eines Vorhabens im Bestand werden in Ansätzen zu einem Leitfaden zur Ingenieurtätigkeit zusammengefasst.
Additional file 7 of Periacetabular osteotomy with or without arthroscopic management in patients with hip dysplasia: study protocol for a multicenter randomized controlled trial
Creators: name: Wilkin, Geoffrey P.
name: Poitras, Stéphane
name: Clohisy, John
name: Belzile, Etienne
name: Zaltz, Ira
name: Grammatopoulos, George
name: Melkus, Gerd
name: Kawan Rakhra
name: Ramsay, Tim
name: Kednapa Thavorn
name: Beaulé, Paul E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 7.
Homeoidally striated density profiles. II. Anisotropy and rotation
Creators: name: Caimmi, R.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: With regard to homeoidally striated Jacobi ellipsoids, a unified theory of systematically rotating and peculiar motions is developed, where both real and imaginary rotation are considered. The effect of positive or negative residual motion excess, is shown to be equivalent to an additional real or imaginary rotation, respectively. Then it is realized that a homeoidally striated Jacobi ellipsoid with assigned velocity distribution, always admits an adjoint configuration i.e. a classical Jacobi ellipsoid of equal mass and axes. In addition, further constraints are established on the amount of residual velocity anisotropy along the principal axes, for triaxial configurations. Special effort is devoted to investigating sequences of virial equilibrium configurations in terms of normalized parameters, including the effects of both density and velocity profile. In particular, it is shown that bifurcation points from axisymmetric to triaxial configurations occur as in classical Jacobi ellipsoids, contrary to earlier results. The reasons of the above mentioned discrepancy are also explained. An interpretation of recent results from numerical simulations on stability (Meza 2002), is provided in the light of the model. A physical interpretation of the early Hubble sequence is shortly reviewed and discussed from the standpoint of the model, according if elliptical galaxies are considered as isolated systems or embedded within dark matter haloes. In any case, a lower limit to the flattening of oblate-like configurations is established. On the other hand, it is found no lower limit to the elongation of prolate-like configurations, and observed lack of elliptical galaxies more elongated than E7 needs a different physical interpretation, such as the fully investigated bending instabilities.
description: 53 pages, 4 figures, 1 table, improved version with bending instabilities mentioned and discussed, and related references added
title: Anaerobe Behandlung von Substrat aus Braunwasser
Creators: name: Bachert, Carsten
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Obligat anaerobe Bakterien
subject: Anaerobier
subject: Anaerober Stoffwechsel
subject: Fakultative Anaerobier
subject: Anaerobe Behandlung
subject: Gärung
subject: 620

description: Für die weitgehende Nutzung der enthaltenen Nährstoffe in häuslichem Abwasser und die Realisierung des Kreislaufgedankens auch in kommunalen Abwassersystemen ist eine Trennung der Abwasserströme, wie sie vielfach bereist in der industriellen Produktion eingesetzt wird, Vorrausetzung. Die getrennte Erfassung und Sammlung sowie die Nutzung bzw. Behandlung der einzelnen Teilströme weicht von den üblichen Verfahren der bisher praktizierten end-of-pipe-Systeme ab und es gilt nach alternativen Verfahrensmöglichkeiten zu suchen, um die Ziele eines teilstromorientierten Abwasserkonzeptes zu verwirklichen. Im Rahmen dieser Arbeit wird ein anaerobes mesophiles Behandlungsverfahren für den Teilstrom Braunwasser untersucht. Zu diesem Zweck wurden verschieden Versuche mit Faeces mit unterschiedlichen Wassergehalten und in unterschiedlichen Mischungen von Einsatz des Rohsubstrates bis hin zur Zugabe von Urin, Wasser und/oder Impfschlamm untersucht. Während der Versuche in temperierten Reaktoren fand eine Aufzeichnung der Gaserträge der einzelnen Ansätze, der pH-Werte in ausgewählten Ansätzen, der Raumtemperatur und der Substrattemperatur im Reaktor statt. Diese verschiedenen Ansätze sind anhand ihrer Zusammensetzung dargestellt und in den gewonnenen Ergebnissen untereinander und mit denen in der Startliteratur angegebenen Werten verglichen und bewertet. Ziel der anaeroben Behandlung war es, ein stabilisiertes Substrat aus der anaeroben Stufe zu erhalten. Aus den gewonnenen Ergebnissen wird ein Verfahrensvorschlag für eine anaerobe Stabilisierung gemacht.
КОНСТРУКЦИИ ВОЗДУШНОГО ТЕПЛООБМЕННЫХ АППАРАТОВ.
Creators: name: Амиркулов, Нуритдин
name: Қодиров, Абдувохид
Publisher: name: Zenodo
Year: 2024

description: Конструкции воздушного теплообменных аппаратов, применяемых в нефтеперерабатывающих предприятиях.
Additional file 8 of Periacetabular osteotomy with or without arthroscopic management in patients with hip dysplasia: study protocol for a multicenter randomized controlled trial
Creators: name: Wilkin, Geoffrey P.
name: Poitras, Stéphane
name: Clohisy, John
name: Belzile, Etienne
name: Zaltz, Ira
name: Grammatopoulos, George
name: Melkus, Gerd
name: Kawan Rakhra
name: Ramsay, Tim
name: Kednapa Thavorn
name: Beaulé, Paul E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 8: Figure 4. Schedule of enrolment, interventions, and assessments.
title: Studie zu bautechnischen Voraussetzungen für automatisierte Fertigteilmontagen
Creators: name: Lauterbach, Anne
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Montageautomation
subject: Automatisierungssystem
subject: Automatisierungstechnik
subject: 620

description: Diese Arbeit umfasst eine Zusammenfassung der aktuellen Fertigteil- und Montagetechnik sowie Grundkenntnisse von automatisierten Systemen im Bauwesen. Dabei wird ein Überblick über den Stand der Technik gegeben und die daraus entstehenden Voraussetzungen für eine automatisierte Fertigteilmontage, beginnend bei den TUL-Prozessen bis hin zur Montage, definiert. Folgend werden Grundüberlegungen hinsichtlich weiterer Forschungsansätze bzw. Weiterführungen dieser modernen Technologien aufgezeigt sowie Schnittstellen zwischen Maschinen und Vermessungstechniken und Systemlücken bei der Anwendung analysiert. Eine Wirtschaftlichkeitsbetrachtung der mechanischen und automatisierten Fertigteilmontage soll die Zeit- und Lohnkosteneinsparungen aufzeigen. Weiterhin wurde eine Systematisierung von besonderen Verbindungs- und Anschlaghilfsmittel durchgeführt. Dabei bezog sich die Auswertung auf die Produktpaletten der vier größten deutschen Firmen. Grundsätzlich versteht sich die Arbeit als zukunftsorientiert und basiert auf einer sachlichen Untersuchung der Zusammenhänge.
Revisit of generalized Kerker's conditions using composite metamaterials
Creators: name: Ali, Rfaqat
Publisher: name: arXiv
Year: 2020
Subjects: subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: Achieving zero backward scattering (ZBS) and zero forward scattering (ZFS), i.e., the so-called the first and second Kerker's conditions respectively, by sphere spherical particles is considered to be impossible due to the unavailability of naturally occurring magnetic materials in the visible frequency range. We report theoretical modeling to design composite metamaterials that present large optical magnetic permeability in the visible frequency range by employing Mie scattering theory and extended Maxwell Garnett theory. We numerically show that a careful selection of constituents of a composite metamaterial one can obtain metamaterials with sufficiently large artificial permeability that eventually provides the Kerker's criterion to achieve the Kereker's conditions. By taking realistic material parameters we demonstrate that the metamaterials exhibiting ZBS and ZFS have a small imaginary part of the refractive index than metallic structures that pave a path to design high-performance nanophotonic devices.
description: 7 pages, 3 Figures
729: Walter Hughes and Lieutenant Hoobs
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Lieutenant Hoobs was a First World War pilot, as was the contributor's relative, Walter Hughes. Both served in the Royal Flying Corps at the beginning of the First World War. They served on the Western front and they suffered a serious crash on 6th September 1915, Lt Hoobs may have survived the crash but died shortly after, Hughes himself lived and took with him a small part of the aircraft.
QCD and a Holographic Model of Hadrons
Creators: name: Erlich, Joshua
name: Katz, Emanuel
name: Son, Dam T.
name: Stephanov, Mikhail A.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We propose a five-dimensional framework for modeling low-energy properties of QCD. In the simplest three parameter model we compute masses, decay rates and couplings of the lightest mesons. The model fits experimental data to within 10%. The framework is a holographic version of the QCD sum rules, motivated by the anti-de Sitter/conformal field theory (AdS/CFT) correspondence. The model naturally incorporates properties of QCD dictated by chiral symmetry, which we demonstrate by deriving the Gell-Mann-Oakes-Renner relationship for the pion mass.
description: 4 pages, revtex, v2: formula for rho-pi-pi coupling corrected
Additional file 5 of Periacetabular osteotomy with or without arthroscopic management in patients with hip dysplasia: study protocol for a multicenter randomized controlled trial
Creators: name: Wilkin, Geoffrey P.
name: Poitras, Stéphane
name: Clohisy, John
name: Belzile, Etienne
name: Zaltz, Ira
name: Grammatopoulos, George
name: Melkus, Gerd
name: Kawan Rakhra
name: Ramsay, Tim
name: Kednapa Thavorn
name: Beaulé, Paul E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 5. International Hip Outcome Tool (iHOT-33).
Estimating the Returns to Mangrove Conversion: Sustainable Management or Short Term Gain?
Creators: name: Gammage, Sarah
name: Gammage, Sarah
Publisher: name: Unknown
Year: 1997
Subjects: Resource /Energy Economics and Policy

description: The purpose of this project is to estimate the 'total economic value' of a mangrove ecosystem in part of the Gulf of Fonseca, El Salvador, and to develop a cost-benefit framework to compare the sustainable management of the forest with alternative use scenarios. The current management strategy is compared to its sustainable counterpart, and to the partial conversion of the mangrove ecosystem to semi-intensive aquaculture and salt ponds. A variety of different valuation techniques are used to assess the contribution of different products and services of the mangrove ecosystem. Among these techniques, a 'pseudo production function approach' is used to calculate dose-response estimates of the impact of mangrove loss on the productivity of marine and estuarine fisheries. The valuation exercise yields the result that the sustainable management strategy enables more timber and fisheries benefits to be captured over a horizon of 56 years than do the other management options. This supports the view that the allocation of usufruct rights and the sanctioned conversion of mangrove forest to artificial shrimp ponds reduces the net benefits available to society, and that such policy failures accelerate the loss of biodiversity and compound existing market failures. The research was highly participatory and involved the community in the measurement and articulation of the value of the mangroves. As such, it is one of the first valuation exercises to incorporate a community definition of sustainable management - one which reflects the revealed preference valuations of the community and which is in harmony with their management concerns.
733: The Argyle family
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: These artefacts relate to Argyle family, who lived near to where contributor lives. The postcard was sent from two brothers to their sister. Also included are photographs of the family and of the survivors of the Oxfordshire and Buckinghamshire Regiment. One member of the Argyle family, Percival Edgar, was killed in action and the letter informing his mother of his death is included here. Percival was a lieutenant in the East Lancashire Regiment. He served for two years.
title: The EU Water Framework Directive and its Implementation in Norway
Creators: name: Petzold, Frank
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: water framework directive
subject: Wasserrahmenrichtlinie
subject: 620

description: Aufgabe der Masterarbeit war es, eine Eibnführung in die WRRL und deren Implementierung zu geben sowie das Darstellen erster Umsetzungsschritte in Norwegen.
A phase field model for elastic-gradient-plastic solids undergoing hydrogen embrittlement
Creators: name: Kristensen, Philip K.
name: Niordson, Christian F.
name: Martínez-Pañeda, Emilio
Publisher: name: arXiv
Year: 2020
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Numerical Analysis (math.NA)
subject: Applied Physics (physics.app-ph)
subject: FOS: Physical sciences
subject: FOS: Computer and information sciences
subject: FOS: Mathematics

description: We present a gradient-based theoretical framework for predicting hydrogen assisted fracture in elastic-plastic solids. The novelty of the model lies in the combination of: (i) stress-assisted diffusion of solute species, (ii) strain gradient plasticity, and (iii) a hydrogen-sensitive phase field fracture formulation, inspired by first principles calculations. The theoretical model is numerically implemented using a mixed finite element formulation and several boundary value problems are addressed to gain physical insight and showcase model predictions. The results reveal the critical role of plastic strain gradients in rationalising decohesion-based arguments and capturing the transition to brittle fracture observed in hydrogen-rich environments. Large crack tip stresses are predicted, which in turn raise the hydrogen concentration and reduce the fracture energy. The computation of the steady state fracture toughness as a function of the cohesive strength shows that cleavage fracture can be predicted in otherwise ductile metals using sensible values for the material parameters and the hydrogen concentration. In addition, we compute crack growth resistance curves in a wide variety of scenarios and demonstrate that the model can appropriately capture the sensitivity to: the plastic length scales, the fracture length scale, the loading rate and the hydrogen concentration. Model predictions are also compared with fracture experiments on a modern ultra-high strength steel, AerMet100. A promising agreement is observed with experimental measurements of threshold stress intensity factor $K_{th}$ over a wide range of applied potentials.
Power-spectrum analysis of Super-Kamiokande solar neutrino data, taking into account asymmetry in the error estimates
Creators: name: Sturrock, P. A.
name: Scargle, J. D.
Publisher: name: arXiv
Year: 2006
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The purpose of this article is to carry out a power-spectrum analysis (based on likelihood methods) of the Super-Kamiokande 5-day dataset that takes account of the asymmetry in the error estimates. Whereas the likelihood analysis involves a linear optimization procedure for symmetrical error estimates, it involves a nonlinear optimization procedure for asymmetrical error estimates. We find that for most frequencies there is little difference between the power spectra derived from analyses of symmetrized error estimates and from asymmetrical error estimates. However, this proves not to be the case for the principal peak in the power spectra, which is found at 9.43 yr-1. A likelihood analysis which allows for a "floating offset" and takes account of the start time and end time of each bin and of the flux estimate and the symmetrized error estimate leads to a power of 11.24 for this peak. A Monte Carlo analysis shows that there is a chance of only 1% of finding a peak this big or bigger in the frequency band 1 - 36 yr-1 (the widest band that avoids artificial peaks). On the other hand, an analysis that takes account of the error asymmetry leads to a peak with power 13.24 at that frequency. A Monte Carlo analysis shows that there is a chance of only 0.1% of finding a peak this big or bigger in that frequency band 1 - 36 yr-1. From this perspective, power spectrum analysis that takes account of asymmetry of the error estimates gives evidence for variability that is significant at the 99.9% level. We comment briefly on an apparent discrepancy between power spectrum analyses of the Super-Kamiokande and SNO solar neutrino experiments.
description: 13 pages, 2 tables, 6 figures
Educational Grants Closing the Gap in Schooling Attainment between Poor and Non-Poor
Creators: name: Raymond, Melanie
name: Sadoulet, Elisabeth
name: Raymond, Melanie
name: Sadoulet, Elisabeth
Publisher: name: Unknown
Year: 2003
Subjects: Labor and Human Capital

description: The present work assesses the effectiveness of educational grants at raising schooling attainment of poor children in rural areas. The per grade gains in reducing drop outs cumulate in an additional half a year in total schooling. Progressive impacts are found along three dimensions: degree of poverty, parents' education and distance to school. The children of uneducated fathers living far from school gain twice as much as their counterparts with an educated father or close to a school. The intervention successfully closes the schooling gap along the wealth dimension but falls short of achieving the same in the other dimensions of parents' education and school distance.
761: The Petchey family
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: The artefacts help us to picture just how widely the war affected one family, in so many different roles on land and sea.
Additional file 6 of Periacetabular osteotomy with or without arthroscopic management in patients with hip dysplasia: study protocol for a multicenter randomized controlled trial
Creators: name: Wilkin, Geoffrey P.
name: Poitras, Stéphane
name: Clohisy, John
name: Belzile, Etienne
name: Zaltz, Ira
name: Grammatopoulos, George
name: Melkus, Gerd
name: Kawan Rakhra
name: Ramsay, Tim
name: Kednapa Thavorn
name: Beaulé, Paul E.
Publisher: name: figshare
Year: 2020
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: Ecology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified

description: Additional file 6. PROMIS Global Health 10.
Magnetoresistance of atomic-scale electromigrated nickel nanocontacts
Creators: name: Keane, Z. K.
name: Yu, L. H.
name: Natelson, D.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We report measurements of the electron transport through atomic-scale constrictions and tunnel junctions between ferromagnetic electrodes. Structures are fabricated using a combination of e-beam lithography and controlled electromigration. Sample geometries are chosen to allow independent control of electrode bulk magnetizations. As junction size is decreased to the single channel limit, conventional anisotropic magnetoresistance (AMR) increases in magnitude, approaching the size expected for tunneling magnetoresistance (TMR) upon tunnel junction formation. Significant mesoscopic variations are seen in the magnitude and sign of the magnetoresistance, and no evidence is found of large ballistic magnetoresistance effects.
description: 3 pages, 3 figures
title: Einfluss der Gestaltungsform sowie des baulichen und verkehrlichen Umfeldes von Straßenbahnhaltestellen auf die Verkehrssicherheit von Fußgängern
Creators: name: Grießbach, Jeannine
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Verkehrssicherheit
subject: 620

description: Es werden Zusammenhänge zwischen den Gestaltungsformen von Straßenbahnhaltestellen sowie deren baulichen und verkehrlichen Umfelds auf die Verkehrssicherheit von Fußgängern erarbeitet. Die Analyse wurde an den Stadtbahnhaltestellen der Stadt Erfurt durchgeführt. Im ersten Teil der Arbeit erfolgt eine Literaturrecherche über bisherige Untersuchungen und rechtliche Grundlagen. Der zweite Teil bildet die Charakterisierung von Haltestellengrundformen. Im Anschluß daran wurden mögliche Einflussfaktoren erarbeitet, deren mögliche Einflüsse auf die Verkehrssicherheit im Hauptteil mit Hilfe einer örtlichen Unfalluntersuchung und Beobachtungen erörtert werden.
China's Income Distribution over Time: Reasons for Rising Inequality
Creators: name: Wu, Ximing
name: Perloff, Jeffrey M.
name: Wu, Ximing
name: Perloff, Jeffrey M.
Publisher: name: Unknown
Year: 2004
Subjects: Consumer/Household Economics

description: We use a new method to estimate China's income distributions using publicly available interval summary statistics from China's largest national household survey. We examine rural, urban, and overall income distributions for each year from 1985-2001. By estimating the entire distributions, we can show how the distributions change directly as well as examine trends in traditional welfare indices such as the Gini. We find that inequality has increased substantially in both rural and urban areas. Using an inter-temporal decomposition of aggregate inequality, we determine that increases in inequality within the rural and urban sectors and the growing gap in rural and urban incomes have been equally responsible for the growth in overall inequality over the last two decades. However, the rural-urban income gap has played an increasingly important role in recent years. In contrast, only the growth of inequality within rural and urban areas is responsible for the increase in inequality in the United States, where the overall inequality is close to that of China. We also show that urban consumption inequality (which may be a better indicator of economic well-being than income inequality) rose considerably.
773: Roy Harding (map)
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: This map of the French trenches dating 1918 shows telephone centres, bridges and headquarters. It covers the area around Cambrai, very close to the Belgian border, just before the second battle here. Although the map belonged to Roy Harding, it is not clear if it was him who used the map in the war and his family do not know where it came from. It is believed that Roy Harding was a conscientious objector in the Second World War but his reasons are not known. It is possible that he could have been involved in the First World War as one of the young teenage conscripts or it could have belonged to another family member or he could have just acquired it out of interest.
Degeneracy and Strong Fluctuation-Induced First-Order Phase Transition in the Dipolar Pyrochlore Antiferromagnet
Creators: name: Cepas, O.
name: Young, A. P.
name: Shastry, B. S.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We show that a continuous set of degenerate critical soft modes strongly enhances the first-order character of a fluctuation-induced first-order transition in the pyrochlore dipolar Heisenberg antiferromagnet. Such a degeneracy seems essential to explain the strong first-order transition recently observed in Gd(2)Sn(2)O(7). We present some evidence from Monte-Carlo simulations and a perturbative renormalization group expansion.
description: 8 pages, 9 figures, new version to appear in PRB, added refs
Words and worlds : attending to culture as interculture in the Spanish language classroom through Chicana literature
Creators: name: Durán Navarro, Lorena Beatriz
Publisher: name: University of British Columbia
Year: 2009

description: This thesis explores how Spanish language teachers may present the notion of cross-cultural understanding in their classes. It argues against a definition of culture that divides students from the target cultures into "us" and "them," but rather, advocates the understanding of culture as "interculture." This concept of "interculture," which involves questioning stereotypes and self-exploration, can be well illustrated through integrating Chicana literature into the curriculum. In particular, the metaphor of the "borderlands," which is critical to understanding Chicano culture, provides a relevant point of departure for learners of Spanish to see the target cultures, as well as their own, as hybrid, constructed, and dynamic.
Observations of T Tauri Disks at Sub-AU Radii: Implications for Magnetospheric Accretion and Planet Formation
Creators: name: Eisner, J. A.
name: Hillenbrand, L. A.
name: White, R. J.
name: Akeson, R. L.
name: Sargent, A. I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We determine inner disk sizes and temperatures for four solar-type (1-2 M$_{\odot}$) classical T Tauri stars (AS 207A, V2508 Oph, AS 205A, and PX Vul) using 2.2 $μ$m observations from the Keck Interferometer. Nearly contemporaneous near-IR adaptive optics imaging photometry, optical photometry, and high-dispersion optical spectroscopy are used to distinguish contributions from the inner disks and central stars in the interferometric observations. In addition, the spectroscopic and photometric data provide estimates of stellar properties, mass accretion rates, and disk co-rotation radii. We model our interferometric and photometric data in the context of geometrically flat accretion disk models with inner holes, and flared disks with puffed-up inner walls. Models incorporating puffed-up inner disk walls generally provide better fits to the data, similar to previous results for higher-mass Herbig Ae stars. Our measured inner disk sizes are larger than disk truncation radii predicted by magnetospheric accretion models, with larger discrepancies for sources with higher mass accretion rates. We suggest that our measured sizes correspond to dust sublimation radii, and that optically-thin gaseous material may extend further inward to the magnetospheric truncation radii. Finally, our inner disk measurements constrain the location of terrestrial planet formation as well as potential mechanisms for halting giant planet migration.
description: Accepted for publication in ApJ (May 1, 2005 issue)
Reformulating Competition? Gasoline Content Regulation and Wholesale Gasoline Prices
Creators: name: Brown, Jennifer
name: Mansur, Erin T.
name: Hastings, Justine
name: Villas-Boas, Sofia Berto
name: Brown, Jennifer
name: Mansur, Erin T.
name: Hastings, Justine
name: Villas-Boas, Sofia Berto
Publisher: name: Unknown
Year: 2006
Subjects: Demand and Price Analysis
Environmental Economics and Policy

description: The 1990 Clean Air Act Amendments stipulated gasoline content requirements for metropolitan areas with air pollution levels above predetermined federal thresholds. The legislation led to exogenous changes in the type of gasoline required for sale across U.S. metropolitan areas. This paper uses a panel of detailed wholesale gasoline price data to estimate the effect of gasoline content regulation on wholesale prices and price volatility. In addition, we investigate the extent to which the estimated price effects are driven by changes in the number of suppliers versus geographic segmentation resulting from regulation. We find that prices in regulated metropolitan areas increase significantly, relative to a control group, by an average of 3.6 cents per gallon. The price effect, however, varies by ten cents per gallon across regulated markets and the heterogeneity across markets is correlated with the degree of geographic isolation generated by the discontinuous regulatory requirements.
719: Frederick John, Frank and Albert Thomas Lamboll
Creators: name: Project Team, Lest We Forget
Publisher: name: University of Oxford
Year: 2024
Subjects: classificationCode: 430304
subject: British history
classificationCode: 430308
subject: European history (excl. British, classical Greek and Roman)
classificationCode: 430316
subject: International history

description: Frederick John Lamboll, Frank Lamboll and Albert Thomas Lamboll were three brothers, the uncles and father respectively of the contributor who brought in their medals, pay books and memorial plaques. Frederick Lamboll served in the Royal Warwickshire Regiment and was killed in 1917. Frank Lamboll died as a prisoner of war, three weeks before the Armistice was signed. Three medals and a plaque were related to these two. The Pay Book and Discharge Papers belonged to Albert Thomas Lamboll.
title: Shrinkage chracteristics and tensile strength of cohesive soils
Creators: name: Hagner, Therese
Publisher: name: Bauhaus-Universität Weimar
Year: 2005
Subjects: subject: Schrumpfverhalten
subject: Zugfestigkeit
subject: ugesättigter Boden
subject: Saugspannung
subject: 620

description: Shrinkage tests and unconfined compression tests were carried out in this research. Four soil with different percentages of fines were used. Three possibilities to measure the matric suction of a soil are shown in this tesis – Tempe pressure cell test – pressure plate test and null-type-axis-translation test.
description: Schrumpftests and indirekte Zugversuche (einaxiale Druckversuche) wurden in dieser Forschungsarbeit durchgeführt. Vier verschiedene Böden mit unterschiedlichem Feinkornanteil wurden verwendet. Drei unterschiedliche Möglichkeiten zur Messung der Saugspannung werden gezeigt - Tempe pressure cell test – pressure plate test and null-type-axis-translation test.
Multiple-Vehicle Tracking in the Highway Using Appearance Model and Visual Object Tracking
Creators: name: Bafghi, Fateme
name: Shoushtarian, Bijan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In recent decades, due to the groundbreaking improvements in machine vision, many daily tasks are performed by computers. One of these tasks is multiple-vehicle tracking, which is widely used in different areas such as video surveillance and traffic monitoring. This paper focuses on introducing an efficient novel approach with acceptable accuracy. This is achieved through an efficient appearance and motion model based on the features extracted from each object. For this purpose, two different approaches have been used to extract features, i.e. features extracted from a deep neural network, and traditional features. Then the results from these two approaches are compared with state-of-the-art trackers. The results are obtained by executing the methods on the UA-DETRACK benchmark. The first method led to 58.9% accuracy while the second method caused up to 15.9%. The proposed methods can still be improved by extracting more distinguishable features.
Torsion induces Gravity
Creators: name: Aros, Rodrigo
name: Contreras, Mauricio
Publisher: name: arXiv
Year: 2006
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: In this work the Poincare-Chern Simons and Anti de Sitter Chern Simons gravities are studied. For both a solution that can be casted as a black hole with manifest torsion is found. Those solutions resemble Schwarzschild and Schwarzschild-AdS solutions respectively.
description: 4 pages, RevTex
Unemployment and the "Labour-Management Conspiracy"
Creators: name: Karp, Larry S.
name: Paul, Thierry
name: Karp, Larry S.
name: Paul, Thierry
Publisher: name: Unknown
Year: 1998
Subjects: subject: Labor and Human Capital
subject: unemployment
subject: government subsidies
subject: wage bargaining

description: We study a model in which management and a union bargain sequentially, first choosing a rule that will later determine the level of employment, and then choosing a wage. The government then chooses an output or an employment subsidy. An exogenous natural turnover rate in the unionized sector creates unemployment whenever the union wage exceeds the competitive wage. Government intervention can increase both the equilibrium amount of unemployment and worsen the intersectoral allocation of labour, because of the induced change in the endogenous wage. Unemployment weakens but does not eliminate the possibility of a "labour-management conspiracy".
Common Ground Between Free-Traders and Environmentalists
Creators: name: Karp, Larry S.
name: Sacheti, Sandeep
name: Zhao, Jinhua
name: Karp, Larry S.
name: Sacheti, Sandeep
name: Zhao, Jinhua
Publisher: name: Unknown
Year: 1999
Subjects: Environmental Economics and Policy

description: We use a North-South model with property right differences and resource dynamics to study the effects of trade on resource use and welfare. Autarky is likely to Pareto-dominate free trade in the long run when the environment is quite fragile, and the result is reversed when the environment is quite resilient. Trade may cause an environmentally poor country to drag down" its richer trading partner; in this case, both countries degrade their stocks when these would be preserved under autarky. Alternatively, trade may enable the environmentally richer country to pull up" its partner; in this case both countries preserve their stocks when these would be degraded under autarky. These results rationalize the positions of environmentalists and free-traders. The direction of trade may change over time, but in steady states it is either inefficient or indeterminate. In the former case, a switch to autarky would increase global welfare.