cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
The Nebular Environment and Enigmatic Hard X-ray Emission of the Hot DO White Dwarf KPD 0005+5106
Creators: name: Chu, You-Hua
name: Gruendl, Robert A.
name: Williams, Rosa M.
name: Gull, Theodore R.
name: Werner, Klaus
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We have detected an ionized nebula around the hot DO white dwarf KPD 0005+5106, and used the [OIII]/H-alpha ratios and nebular velocities to separate this nebula from the background HII region of AO Cas. The angular size of the [OIII] nebula of KPD 0005+5106 is ~3 deg. The velocity of this nebula is similar to those of the local interstellar HI gas and the interstellar/circumstellar absorption lines in UV spectra of KPD 0005+5106, but has a large offset from those of the stellar photospheric lines. The mass of the ionized nebula, ~70 Msun, indicates that it consists of interstellar material and that the velocity offset between the star and the ambient medium should not be interpreted as a wind outflow. We have also analyzed the ROSAT PSPC observation of KPD 0005+5106 to determine its hard X-ray luminosity. Using the L_X/L_bol relation for late-type stars and the lack of obvious near-IR excess of KPD 0005+5106, we exclude the possible existence of a binary companion with coronal activity. Without a wind outflow, the presence of stellar OVIII emission requires that X-rays at energies greater than 0.871 keV are present in the vicinity of KPD 0005+5106. This hard X-ray emission is most puzzling as neither photospheric emission at such high energies nor a high-temperature corona is expected from current stellar atmospheric models of KPD 0005+5106. X-ray observations with high angular resolution and sensitivity are needed to confirm the positional coincidence and to enable X-ray spectral analyses for constraining the physical origin of the hard X-ray emission from KPD 0005+5106.
description: LaTeX, 17 pages, 4 figures, Accepted for publication in the AJ, Nov issue
5XPRO: UPORABA UMETNE INTELIGENCE V RAZISKOVALNI PISARNI
Creators: name: Bales, Jana
Publisher: name: Zenodo
Year: 2025
Subjects: subject: AI
subject: Research Office
subject: 5XPRO
subject: NETWORKING
subject: Social Networking

description: Na ZRC SAZU je 29. januarja 2025 potekalo mreženje projektnih pisarn konzorcija projekta 5XPRO. V tem okviru je Mimi Urbanc z ZRC SAZU predstavila možnosti uporabe umetne inteligence pri delu zaposlenih v Raziskovalni pisarni.
Branon dark matter: an introduction
Creators: name: Cembranos, J. A. R.
name: Dobado, A.
name: Maroto, A. L.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: This is a brief introduction to branon physics and its role in the dark matter problem. We pay special attention to the phenomenological consequences, both in high-energy particle physics experiments and in astrophysical and cosmological observations.
description: 5 pages, 3 figures. To appear in the proceedings of the 10th international symposium on Particles, Strings and Cosmology, PASCOS 04, Boston, August 16-22, 2004
Additional file 1 of A novel mechanism of phenotypic heterogeneity in Creutzfeldt-Jakob disease
Creators: name: Nemani, Satish K.
name: Xiangzhu Xiao
name: Cali, Ignazio
name: Cracco, Laura
name: Puoti, Gianfranco
name: Nigro, Massimiliano
name: Lavrich, Jody
name: Singh, Anuradha Bharara
name: Appleby, Brian S.
name: Sim, Valerie L.
name: Notari, Silvio
name: Surewicz, Witold K.
name: Gambetti, Pierluigi
Publisher: name: figshare
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Evolutionary Biology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Cancer
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: Additional file 1: Table S1. Summary of conformational stability and PK resistance indices for individual subtypes and variants.
Heavy-flavor effects in soft gluon resummation for electroweak boson production at hadron colliders
Creators: name: Berge, Stefan
name: Nadolsky, Pavel M.
name: Olness, Fredrick I.
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We evaluate the impact of heavy-quark masses on transverse momentum distributions of W, Z, and supersymmetric neutral Higgs bosons at the Tevatron and LHC. The masses of charm and bottom quarks act as non-negligible momentum scales at small transverse momentum, and affect resummation of soft and collinear radiation. We point out inconsistencies in the treatment of heavy-flavor channels at small transverse momentum in massless factorization schemes, and formulate small transverse momentum resummation in a general-mass variable flavor number factorization scheme. The improved treatment of the quark mass dependence leads to non-negligible effects in precision measurements of the W boson mass at the LHC, and may cause observable modifications in production of Higgs bosons and other particles in heavy-quark scattering.
description: 26 pages, 6 figures
Hawking radiation as tunneling from the Kerr and Kerr-Newman black holes
Creators: name: Jiang, Qing-Quan
name: Wu, Shuang-Qing
name: Cai, Xu
Publisher: name: arXiv
Year: 2005
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Recent work, which treats the Hawking radiation as a semi-classical tunneling process at the horizon of the Schwarzschild and Reissner-Nordstrom spacetimes, indicates that the exact radiant spectrum is no longer pure thermal after considering the black hole background as dynamical and the conservation of energy. In this paper, we extend the method to investigate Hawking radiation as massless particles tunneling across the event horizon of the Kerr black hole and that of charged particles from the Kerr-Newman black hole by taking into account the energy conservation, the angular momentum conservation, and the electric charge conservation. Our results show that when self-gravitation is considered, the tunneling rate is related to the change of Bekenstein-Hawking entropy and the derived emission spectrum deviates from the pure thermal spectrum, but is consistent with an underlying unitary theory.
description: 10 pages, no figure, Revtex4, typos removed, final version to appear in PRD
title: Relationale Reviere. Ein methodischer Zugang zur Varianz und Verwobenheit der Dimension Geschlecht im Kontext (nah)raumbezogener Forschung
Creators: name: Hoffmann, Nicole
Publisher: name: Humboldt-Universität zu Berlin
Year: 2020
Subjects: subject: Ethnografie
subject: Gender
subject: Geschlecht
subject: Methoden
subject: Raum
subject: Raumsoziologie
subject: Revier
subject: Stadtsoziologie
subject: ddc:300

description: Vor dem Hintergrund des grundlegenden Spannungsverhältnisses von ‚Raum‘ und ‚Mensch‘ wird im vorliegenden Beitrag die Frage aufgegriffen, wie sich geschlechtsspezifische Dimensionen in einem nahräumlichen Kontext methodisch freilegen lassen. Im Rahmen eines raumsoziologischen Ansatzes wird am Beispiel der Koblenzer Altstadt ein Design vorgestellt, in dessen Kern die ethnografische Untersuchung von ‚Revieren‘ steht. Die Befunde zeugen dabei von der mal vorder-, mal hintergründigen Präsenz der Geschlechterdimension – verbunden mit zahlreichen Faktoren in Relation zu den spezifischen Bedingungen des Raums. Das skizzierte Verfahren versteht sich als ein Vorschlag, Varianz und Verwobenheit von Doing Gender und Doing Space anhand konkreter Fälle im Sinne ihres alltäglichen ‚Eigensinns‘ sichtbar zu machen und zu differenzieren.
A Kenmotsu metric as a conformal $η$-Einstein soliton
Creators: name: Roy, Soumendu
name: Dey, Santu
name: Bhattacharyya, Arindam
Publisher: name: arXiv
Year: 2020
Subjects: subject: Differential Geometry (math.DG)
subject: FOS: Mathematics
subject: 53C15, 53C25, 53C44

description: The object of the present paper is to study some properties of Kenmotsu manifold whose metric is conformal $η$-Einstein soliton. We have studied some certain properties of Kenmotsu manifold admitting conformal $η$-Einstein soliton. We have also constructed a 3-dimensional Kenmotsu manifold satisfying conformal $η$-Einstein soliton.
description: 10 pages
Social distancing and epidemic resurgence in agent-based Susceptible-Infectious-Recovered models
Creators: name: Mukhamadiarov, Ruslan I.
name: Deng, Shengfeng
name: Serrao, Shannon R.
name: Priyanka
name: Nandi, Riya
name: Yao, Louie Hong
name: Täuber, Uwe C.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Physics and Society (physics.soc-ph)
subject: Populations and Evolution (q-bio.PE)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Once an epidemic outbreak has been effectively contained through non-pharmaceutical interventions, a safe protocol is required for the subsequent release of social distancing restrictions to prevent a disastrous resurgence of the infection. We report individual-based numerical simulations of stochastic susceptible-infectious-recovered model variants on four distinct spatially organized lattice and network architectures wherein contact and mobility constraints are implemented. We robustly find that the intensity and spatial spread of the epidemic recurrence wave can be limited to a manageable extent provided release of these restrictions is delayed sufficiently (for a duration of at least thrice the time until the peak of the unmitigated outbreak) and long-distance connections are maintained on a low level (limited to less than five percent of the overall connectivity).
description: 6 figures in main text, 4 more in supplementary materials; to appear in Scientific Reports
Factorization, coherence and asymmetry in the Heisenberg spin-1/2 XXZ chain a transverse magnetic field and with Dzyaloshinskii-Moriya interaction
Creators: name: Thakur, Pradeep
name: Durganandini, P.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We investigate the factorization, coherence and asymmetry properties of the 1d Heisenberg spin-1/2 XXZ chain with Dzyaloshinskii-Moriya interaction (DMI) and a transverse magnetic field using quantum information measures. Both longitudinal and transverse DM vectors are considered. Using numerical DMRG, we compute the one-tangle, two-spin concurrence and the Wigner-Yananse-skew information. We show that a longitudinal DMI destroys the factorizability property while a transverse DMI preserves it. We relate the absence of factorizability to the breaking of the $U(1)$ rotation symmetry about the local magnetization axis at each lattice site. Physically, breaking of the symmetry manifests in the existence of a chiral current. Although the longitudinal DMI destroys factorizability, we obtain a `pseudofactorizing' field ($h_{pf}$) at which entanglement and hence violation of the $U(1)$ symmetry is minimal. Our calculations indicate a phase coherent ground state at $h_{pf}$. An entanglement transition (ET) occurs across this field which is characterized by an enhanced but finite range of two-spin concurrence in its vicinity in contrast with the diverging range of the concurrence for the ET across the factorizing field ($h_{f}$). We relate the asymmetry to the `frameness' or the ability for the state to act as a reference frame for some measurement. In absence of longitudinal DMI (or in presence of transverse DMI), at $h_{f}$, the single site magnetization axis specifies the common $z$-axis for the full system but not the full Cartesian reference frame due to a lack of phase reference. On the other hand, in the presence of a longitudinal DMI, our results indicate that at $h_{pf}$, the local magnetization and the chiral current are sufficient to specify the full Cartesian reference frame, with the chiral current being the macroscopic quantity to determine the phase reference.
description: 13 pages
Penetration of a supersonic particle at the interface in a binary complex plasma
Creators: name: Huang, He
name: Schwabe, Mierk
name: Thomas, Hubertus M
name: Lipaev, Andrey M
name: Du, Cheng-Ran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The penetration of a supersonic particle at the interface was studied in a binary complex plasma. Inspired by the experiments performed in the PK-3 Plus Laboratory on board the International Space Station, Langevin dynamics simulations were carried out. The evolution of Mach cone at the interface was observed, where a kink of the lateral wake front was observed at the interface. By comparing the evolution of axial and radial velocity, we show that the interface solitary wave is non-linear. The dependence of the background particle dynamics in the vicinity of the interface on the penetration direction reveals that the disparity of the mobility may be the cause of various interface effects.
The French Biodiesel Production: An Assessment of the Impacts and Interaction Effects of Policy Instruments
Creators: name: Doumax, Virginie
name: Doumax, Virginie
Publisher: name: Unknown
Year: 2010
Subjects: subject: Agricultural and Food Policy
subject: Resource /Energy Economics and Policy
subject: biofuels
subject: blend mandate
subject: subsidy
subject: social costs

description: This paper proposes to explore the welfare impacts of the French biodiesel policies on the consumer fuel prices. We use a theoretical model to determine under which conditions a binding mandate may lead to an increase in fuel prices. We distinguish between two cases, i.e. when the mandate is used alone and when it is implemented alongside a tax credit on biodiesel. The mandate is defined as a minimum percent requirement. Then we use historical data to make an empirical assessment of the effects of these policies. We derive from the observed quantities and prices of diesel and biodiesel in France over the past the value of the price elasticities of the diesel supply, the biodiesel supply and the fuel demand. This allows us to determine the sign of the fuel price change and thus the impact on consumers’ welfare. Results show that the marginal effect of the mandate alone has been until now a decline of the fuel prices. But as the incorporation rates still grow, the situation is likely to reverse in the coming years. Hence the consumers’ welfare would be negatively affected. But this policy may be efficient to reduce GHG emissions as the rise of fuel prices could lower fuel consumption and thus fossil fuel use. A tax credit allows a mitigation of the increase in the biodiesel price. However, this absorbing effect may disappear as the rate of the tax credit is decreasing.
description: Replaced with revised version of paper 07/18/10.
Identifying Student Success at a Land Grant Institution
Creators: name: Holmgren, Mark
name: McCracken, Vicki A.
name: Holmgren, Mark
name: McCracken, Vicki A.
Publisher: name: Unknown
Year: 2010
Subjects: subject: Teaching/Communication/Extension/Profession
subject: Higher education
subject: inflation
subject: student success

description: Many higher education institutions use admission criteria to match students with the educational requirements of the institution, thereby increasing the level of success of their students and allocating limited enrollment space in some cases. This study uses two different approaches to identify the affect students’ background characteristics have on first year cumulative GPA, and whether differences exist in the impact of high school grades on success in their first year in college between high schools in the state of Washington. Results show that students’ particular high schools systematically perform better or worse than the model predicts, holding the other characteristics of the students constant including their high school GPA. This suggests the same GPA from different schools is indicating different levels of preparedness, either reflecting different curriculum available or taken by a student, or grade inflations differences across schools.
El fenómeno de la "falta de vivienda" en Hannah Arendt
Creators: name: BEUGRÉ, N'DRE SAM
Publisher: name: figshare
Year: 2021
Subjects: subject: 220316 Philosophy of Specific Cultures (incl. Comparative Philosophy)
subject: FOS: Philosophy, ethics and religion
subject: Philosophy

description: Hannah Arendt afirma que en nuestra época las personas se enfrentan al fenómeno de la "falta de vivienda". Según él, la falta de vivienda ha privado a las personas del vínculo que las mantiene unidas y ha provocado que no puedan vivir en un mundo que han creado. Esto significa la alienación del hombre del mundo. Estas consideraciones han convertido a Arendt en uno de los filósofos políticos más influyentes del siglo XX, y esta es una opinión generalmente aceptada. Pero este reconocimiento también parece oscurecer que su verdadero problema en su filosofía política es humano. En este artículo, en opinión de Arendt, se revelarán las razones que llevan a las personas a la “falta de vivienda” y se intentará mostrar el vínculo entre la falta de vivienda y la alienación de las personas. Mientras se hacen estos.
Geometric reduction of Hamiltonian systems
Creators: name: Marciniak, Krzysztof
name: Blaszak, Maciej
Publisher: name: arXiv
Year: 2005
Subjects: subject: Exactly Solvable and Integrable Systems (nlin.SI)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Given a foliation S of a manifold M, a distribution Z in M transveral to S and a Poisson bivector Πon M we present a geometric method of reducing this operator on the foliation S along the distribution Z. It encompasses the classical ideas of Dirac (Dirac reduction) and more modern theory of J. Marsden and T. Ratiu, but our method leads to formulas that allow for an explicit calculation of the reduced Poisson bracket. Moreover, we analyse the reduction of Hamiltonian systems corresponding to the bivector Π.
description: To appear in Rep. Math. Phys. LaTeX file generated by SWP 4.0
Additional file 1 of A systematic review of school meal nudge interventions to improve youth food behaviors
Creators: name: Metcalfe, Jessica Jarick
name: Ellison, Brenna
name: Hamdi, Nader
name: Richardson, Rachel
name: Prescott, Melissa Pflugh
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 1: Supplemental Figure 1. Category-specific outcomes from included school meal nudge studies (n = 20) listed by school meal component.
Conformal Invariance of Partially Massless Higher Spins
Creators: name: Deser, S.
name: Waldron, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show that there exist conformally invariant theories for all spins in d=4 de Sitter space, namely the partially massless models with higher derivative gauge invariance under a scalar gauge parameter. This extends the catalog from the two known gauge models -- Maxwell and partially massless spin 2 -- to all spins.
description: 10 pages Latex
Isotropic A-branes and the stability condition
Creators: name: Chiantese, Stefano
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The existence of a new kind of branes for the open topological A-model is argued by using the generalized complex geometry of Hitchin and the SYZ picture of mirror symmetry. Mirror symmetry suggests to consider a bi-vector in the normal direction of the brane and a new definition of generalized complex submanifold. Using this definition, it is shown that there exists generalized complex submanifolds which are isotropic in a symplectic manifold. For certain target space manifolds this leads to isotropic A-branes, which should be considered in addition to Lagrangian and coisotropic A-branes. The Fukaya category should be enlarged with such branes, which might have interesting consequences for the homological mirror symmetry of Kontsevich. The stability condition for isotropic A-branes is studied using the worldsheet approach.
description: 19 pages
Augmenting reality, naturally
Creators: name: Gordon, Iryna
Publisher: name: University of British Columbia
Year: 2009

description: Augmented Reality (AR) is a promising new technology, aimed at enhancing the user's visual perception of the physical world with computer-generated virtual imagery. Virtual objects, such as rendered 3D models, 2D textures, highlights and labels, must appear correctly projected onto live video captured by a mobile camera. To achieve such a synthesis in a realistic manner, it is necessary to recognize what is viewed by the camera, and to accurately localize the camera and the virtual objects in the real world. In this thesis I address the challenge of automated and robust video augmentation in a variety of natural and unprepared settings. I have implemented a system which computes the camera pose by matching natural image features from a current video frame to a previously constructed 3D model of an operating environment. The system provides built-in tools for the construction of the scene model from reference images, the autocalibration of the camera and the interactive insertion of a virtual object into the modelled scene. Invariant natural features replace special markers for achieving successful recognition in images, and enable stable camera tracking in occluded and dynamic settings. Model recognition from arbitrary viewpoints removes the need to manually initialize the tracker. Experimental results demonstrate geometrically consistent augmentation for a wide variety of environments and unconstrained camera motion.
Abelian topological order of $ν=2/5$ and $3/7$ fractional quantum Hall states in lattice models
Creators: name: Andrews, Bartholomew
name: Mohan, Madhav
name: Neupert, Titus
Publisher: name: arXiv
Year: 2020
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Determining the statistics of elementary excitations supported by fractional quantum Hall states is crucial to understanding their properties and potential applications. In this paper, we use the topological entanglement entropy as an indicator of Abelian statistics to investigate the single-component $ν=2/5$ and $3/7$ states for the Hofstadter model in the band mixing regime. We perform many-body simulations using the infinite cylinder density matrix renormalization group and present an efficient algorithm to construct the area law of entanglement, which accounts for both numerical and statistical errors. Using this algorithm, we show that the $ν=2/5$ and $3/7$ states exhibit Abelian topological order in the case of two-body nearest-neighbor interactions. Moreover, we discuss the sensitivity of the proposed method and fractional quantum Hall states with respect to interaction range and strength.
description: 15 pages, 7 figures
Risk Factors for Invasive Pest Introductions in Commodity Imports: Theory and Empirical Evidence
Creators: name: Lichtenberg, Erik
name: Olson, Lars J.
name: Lichtenberg, Erik
name: Olson, Lars J.
Publisher: name: Unknown
Year: 2010
Subjects: International Relations/Trade

description: Expanded world trade carries with it increased risks of invasions of exotic species and thus increased risks of ecological and economic damage. In the face of such risks, expansion of trade depends critically on the ability to detect unintended introductions of organisms in import shipments and determine whether those introductions are safe as is, safe after appropriate treatment, or unsafe even after treatment. This paper investigates factors associated with greater incremental risk of invasive pest introductions. It develops a conceptual framework based on the production-theoretic notion that invasive pests, like other forms of pollution, can be viewed as an input (or joint output) that serves to lower the cost of producing a commodity. In equilibrium, the prevalence of invasive pests in import shipments depends on production conditions and technology in the exporting country, commodity value and volume, and tariff rates. This conceptual framework suggests that the equilibrium rate at which invasive pests are present in import shipments will vary by commodity, country of origin, value, volume, and season as well as by regulatory factors such as whether pests that may be present in shipments of a commodity are treatable. These results are used to specify an econometric model of factors associated with heightened risk of invasive pest introductions. The parameters of the model are estimated using data from surveillance screening of fruit and vegetable imports into the US during fiscal years 2005-2007. The estimated parameters of the model are consistent with the predictions of the theoretical model. We use them to identify commodities and regions of origin of significantly high and low risk of invasive species introductions.
Optical properties of Heliconical Cholesterics: effects of losses and photonic density of states
Creators: name: Gevorgyan, A. H.
name: Simoni, F.
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Space Science
subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Neuroscience
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Plant Biology
subject: FOS: Biological sciences

description: The investigation of both linear and nonlinear optical properties of Heliconical Cholesteric has been triggered by the easy tuning of the Bragg resonance that can be achieved either by low-frequency electric field or by light waves. However, in previous studies two factors that can strongly affect the optical behaviour of these materials have not been considered. The first one is absorption originated by a complex dielectric permittivity at optical frequency, the second one are the modifications of the photonic density of states incurred by electrical or optical tuning of the Bragg resonance. In this paper we report an extended work of simulations addressing the mentioned issues following the same calculation method presented in previous published papers. We report first the results of the simulations performed on the optical properties of Heliconical Cholesterics showing the effects due to isotropic and anisotropic losses comparing them to what obtained in conventional cholesteric liquid crystals. Then we focus on the photonic density of states near the Bragg resonance and show that its modification when applying increasing static or optical field must be taken into account when considering laser action based on these materials since tuning may remarkably affect the lasing threshold.
Additional file 3 of Validity, reliability and feasibility of a new observation rating tool and a post encounter rating tool for the assessment of clinical reasoning skills of medical students during their internal medicine clerkship: a pilot study
Creators: name: Haring, Catharina M.
name: Klaarwater, Claudia C. R.
name: Bouwmans, Geert A.
name: Cools, Bernadette M.
name: Gurp, Petra J. M. Van
name: Meer, Jos W. M. Van Der
name: Postma, Cornelis T.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 3. PERT
Additional file 1 of Validity, reliability and feasibility of a new observation rating tool and a post encounter rating tool for the assessment of clinical reasoning skills of medical students during their internal medicine clerkship: a pilot study
Creators: name: Haring, Catharina M.
name: Klaarwater, Claudia C. R.
name: Bouwmans, Geert A.
name: Cools, Bernadette M.
name: Gurp, Petra J. M. Van
name: Meer, Jos W. M. Van Der
name: Postma, Cornelis T.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 1. ORT
Experimental observation of non-Abelian topological charges and bulk-edge correspondence
Creators: name: Guo, Qinghua
name: Jiang, Tianshu
name: Zhang, Ruo-Yang
name: Zhang, Lei
name: Zhang, Zhao-Qing
name: Yang, Biao
name: Zhang, Shuang
name: Chan, C. T.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: In the past decades, topological concepts have emerged to classify matter states beyond the Ginzburg-Landau symmetry breaking paradigm. The underlying global invariants are usually characterized by integers, such as Chern or winding numbers. Very recently, band topology characterized by non-Abelian topological charges has been proposed, which possess non-commutative and fruitful braiding structures with multiple (>1) bandgaps entangled together. Despite many potential exquisite applications including quantum computations, no experimental observation of non-Abelian topological charges has been reported. Here, we experimentally observe the non-Abelian topological charges in a PT (parity and time-reversal) symmetric system. More importantly, we propose non-Abelian bulk-edge correspondence, where edge states are found to be described by non-Abelian charges. Our work opens the door towards non-Abelian topological phase characterization and manipulation.
description: 20 pages, 4 figures
The Crystal Method: Asteroseismology of BPM 37093
Creators: name: Metcalfe, T. S.
name: Montgomery, M. H.
name: Kanaan, A.
Publisher: name: arXiv
Year: 2004
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: More than 40 years have passed since Ed Salpeter and others predicted that the carbon/oxygen cores of the coolest white dwarf stars in our Galaxy will theoretically crystallize. This effect has a dramatic impact on the calculated ages of cool white dwarfs, but until recently we have had no way of testing the theory. In 1992, pulsations were discovered in the massive potentially crystallized white dwarf BPM 37093, and in 1999 the theoretical effects of crystallization on the pulsation modes were determined. Observations from two Whole Earth Telescope campaigns in 1998 and 1999, combined with a new model-fitting method using a genetic algorithm, are now giving us the first glimpse inside of a crystallized star.
description: 6 pages, 4 figures, Proc. 14th European Workshop on White Dwarfs
Additional file 2 of Validity, reliability and feasibility of a new observation rating tool and a post encounter rating tool for the assessment of clinical reasoning skills of medical students during their internal medicine clerkship: a pilot study
Creators: name: Haring, Catharina M.
name: Klaarwater, Claudia C. R.
name: Bouwmans, Geert A.
name: Cools, Bernadette M.
name: Gurp, Petra J. M. Van
name: Meer, Jos W. M. Van Der
name: Postma, Cornelis T.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Biotechnology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Additional file 2. PEF
Interaction of strongly correlated electrons and acoustical phonons
Creators: name: Moskalenko, V. A.
name: Entel, P.
name: Digor, D. F.
Publisher: name: arXiv
Year: 2005
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We investigate the interaction of correlated electrons with acoustical phonons using the extended Hubbard-Holstein model in which both, the electron-phonon interaction and the on-site Coulomb repulsion are considered to be strong. The Lang-Firsov canonical transformation allows to obtain mobile polarons for which a new diagram technique and generalized Wick's theorem is used. This allows to handle the Coulomb repulsion between the electrons emerged into a sea of phonon fields (\textit{phonon clouds}). The physics of emission and absorption of the collective phonon-field mode by the polarons is discussed in detail. Moreover, we have investigated the different behavior of optical and acoustical phonon clouds when propagating through the lattice. In the strong-coupling limit of the electron-phonon interaction, and in the normal as well as in the superconducting phase, chronological thermodynamical averages of products of acoustical phonon-cloud operators can be expressed by one-cloud operator averages. While the normal one-cloud propagator has the form of a Lorentzian, the anomalous one is of Gaussian form and considerably smaller. Therefore, the anomalous electron Green's functions can be considered to be more important than corresponding polarons functions, i.e., pairing of electrons without phonon-clouds is easier to achieve than pairing of polarons with such clouds.
description: : 28 pages, 9 figures, revtex4. Invited paper for a special issue of Low Temperature Physics dedicated to the 20th anniversary of HTSC
Hydrogenated Fullerenes (Fulleranes) in Space
Creators: name: Zhang, Yong
name: Sadjadi, Seyedabdolreza
name: Hsia, Chih-Hao
Publisher: name: arXiv
Year: 2020
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Since the first laboratory synthesis of C$_{60}$ in 1985, fullerene-related species have been proposed to interpret various astronomical features. After more than 25 years' efforts, several circumstellar and interstellar features have been convincingly assigned to C$_{60}$, C$_{70}$, and C$_{60}^+$. These successes resulted from the recent advancements in observational, experimental, as well as computational techniques, and re-stimulated interest in searching for fullerene derivatives in space. As one of the most important fullerene derivatives, hydrogenated fullerene (fullerane) is likely to exist in circumstellar and interstellar conditions. This review gives an overview of the chemical properties and spectral signals of fulleranes focusing on those relevant to astronomy. We summarize previous proposals of fulleranes as the carrier of astronomical features at UV, optical, infrared, and radio wavelengths, and discuss the arguments favoring or disfavoring the presence of fulleranes in astronomical environments. Although no unambiguous detection of fulleranes in space has yet been reported, there are plausible evidences for supporting the formation of certain fullerane isomers.
description: 10 pages, 3 figures, invited review article for a special issue of Astrophys. Space Sci. devoted to "Unexplained Spectral Phenomena in the ISM"
CUSTOS DE MENSURAÇÃO E GOVERNANÇA NO AGRONEGÓCIO: UM ESTUDO DE CASOS MÚLTIPLOS NO SISTEMA AGROINDUSTRIAL DA CARNE BOVINA
Creators: name: Caleman, Silvia Morales De Queiroz
name: Sproesser, Renato Luiz
name: Zylbersztajn, Decio
name: Caleman, Silvia Morales De Queiroz
name: Sproesser, Renato Luiz
name: Zylbersztajn, Decio
Publisher: name: Unknown
Year: 2008
Subjects: subject: Agribusiness
subject: Agricultural Finance
subject: Industrial Organization
subject: beef
subject: governance mode
subject: competitiveness
subject: transaction cost economics
subject: measurement costs theory.

description: Measurement Cost Theory (MCT) and Transaction Cost Economics (TCE) are both theoretical frameworks applied to the study of economic transactions. In the MCT, the attributes’ measurability is a key variable for identifying efficient modes of governance. The application of MCT to agri systems coordination is the context of this work, whose objective is to identify the governance mechanisms adopted in the beef chain. The transaction attributes of five beef chain subsystems and their degree of measurability (MCT) were analyzed according to TCE. An increasing gradient of coordination in function of the increase of asset specificity was observed, moving from one extreme of the spot market, exemplified by the commodity subsystem, to vertical integration, exemplified by organic beef. The same gradient is observed when the attributes’ measurability is considered as the explanatory variable, with the exception of the organic beef subsystem. It was concluded that the MCT is a theoretical framework that can be applied to the study of agri systems, as its analysis that is in line with that offered by the TCE, but is also more flexible and operational.
Matías Díaz Padrón; Jacob Jordaens and Spain
Creators: name: Lange, Justus
Publisher: name: Journal für Kunstgeschichte
Year: 2024

description: Rezension zu: Matías Díaz Padrón; Jacob Jordaens and Spain; Barcelona: Instituto Moll/Epiarte 2019; 648 S., 550 farb. Abb.; ISBN 978-84-948585-3-6
description: Journal für Kunstgeschichte, Bd. 24 Nr. 3 (2020): Journal für Kunstgeschichte
Heliconical nematic and smectic phases: the synthesis and characterisation of the CB4O.m and CB8O.m series
Creators: name: Alshammari, Ahlam F
name: Zattarin, Amerigo
name: Pearson, Abigail
name: Cruickshank, Ewan
name: Majewska, Magdalena
name: Pociecha, Damian
name: Storey, John MD
name: Gorecka, Ewa
name: Imrie, Corrie T.
name: Walker, Rebecca
Publisher: name: Taylor & Francis
Year: 2024
Subjects: Biophysics
Biochemistry
Medicine
Biotechnology
Cancer
Virology

description: The synthesis and characterisation of two series of nonsymmetric dimers belonging to the family of compounds, the 1-(4-cyanobiphenyl-4′-yl)-ω-(4-alkylanilinebenzylidene-4′-oxy)alkanes (CBnO.m) is reported; in the acronym, n refers to the number of carbon atoms in the spacer, and m in the terminal alkyl chain. The two series reported, CB4O.m and CB8O.m, both show twist-bend nematic (NTB) and smectic phases (SmCTB-SH and SmCTB-DH). Their phase behaviour is compared to that of the CB6O.m and CB10O.m series. For each series, locally intercalated molecular packing is observed for short terminal chains and interdigitated packing for long terminal chains. The intercalated anticlinic smectic CA phase is observed for the CB8O.m and CB10O.m series. All four series exhibit the SmCTB-SH and SmCTB-DH phases for the longer terminal chains and all have an interdigitated molecular arrangement. The absence of an intercalated heliconical phase is attributed to the high viscosity associated with the network intercalated structure.
Evidence for the Strongest Version of the 4d a-Theorem, via a-Maximization Along RG Flows
Creators: name: Barnes, Edwin
name: Intriligator, Ken
name: Wecht, Brian
name: Wright, Jason
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: In earlier work, we (KI and BW) gave a two line "almost proof" (for supersymmetric RG flows) of the weakest form of the conjectured 4d a-theorem, that a_{IR}
description: 36 pages, 6 figures. v2: added reference
Propagation of terahertz waves in a dust acoustic wave
Creators: name: Li, Peng-Fei
name: Du, Cheng-Ran
Publisher: name: arXiv
Year: 2020
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The propagation of terahertz waves in a dust acoustic wave is investigated numerically. By assuming a sinus profile of the dust number density in the dust acoustic waves, the transmission properties are calculated using finite difference time domain method. It shows that the dust acoustic wave can function similarly as a Bragg filter to block the terahertz waves of a certain wavelength. The bandwidth of the filter depends on the density profile of the dust acoustic wave.
Additional file 4 of Effects of tumor-specific CAP1 expression and body constitution on clinical outcomes in patients with early breast cancer
Creators: name: Bergqvist, Malin
name: Elebro, Karin
name: Sandsveden, Malte
name: Borgquist, Signe
name: Rosendahl, Ann H.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Cancer
subject: Plant Biology

description: Additional file 4. Overall survival (OS) according to CAP1 expression, stratified for (A) body fat percentage (BF%), (B) body mass index (BMI), (C) waist circumference, and (D) waist-hip ratio (WHR). Patients at risk, number of events (NoE), LogRank trend test and adjusted hazard ratios (HRs) with 95% CI comparing low CAP1 expression to high CAP1 expression are shown. HR adjusted for age at diagnosis (continuous), tumor size (> 20 mm, yes/no) and any axillary lymph node involvement (yes/no).
Synthesis, chiral separation and physical properties of the cinnamic acid derivatives exhibiting short-pitch cholesteric and TGB phases
Creators: name: Jurkovičová, Terézia
name: Vaňkátová, Petra
name: Cigl, Martin
name: Novotná, Vladimíra
name: Hamplová, Věra
name: Pociecha, Damian
name: Podoliak, Natalia
Publisher: name: Taylor & Francis
Year: 2024
Subjects: subject: Biophysics
subject: Biochemistry
subject: Physical Sciences not elsewhere classified
subject: Microbiology
subject: FOS: Biological sciences
subject: Biotechnology
subject: Environmental Sciences not elsewhere classified
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine

description: Two new photosensitive chiral liquid crystalline materials derived from cinnamic acid were synthesised in (R) and (S) enantiomer forms. The materials were characterised by NMR spectroscopy, purified by preparative liquid chromatography, and the chemical purity of the final products was determined by high performance liquid chromatography (HPLC). High optical purity was reached for all enantiomers. The enantiomer elution order was confirmed by the analysis of non-racemic (R) and (S) mixed samples. The cinnamic acid derivatives are capable of undergoing photoisomerisation. Sample irradiation was performed to realise E-Z isomerisation and investigate its effect on the enantioseparation. The conditions of the enantioselective HPLC method were optimised to achieve a baseline separation for all studied materials both before and after irradiation by the UV light. The mesogenic properties of the studied enantiomers and their racemic mixtures were obtained from differential scanning calorimetry measurements, optical textures observed under the polarising light microscope and X-ray diffraction measurements. Cholesteric and TGB phases have been found for the enantiomers and, analogously, nematic and smectic phases have been confirmed for their racemates. The temperature dependence of the optical birefringence has been studied for the racemates in the temperature range of the mesophases.
On the spectrum of Markov semigroups via sample path large deviations
Creators: name: Ignatiouk-Robert, Irina
Publisher: name: arXiv
Year: 2004
Subjects: subject: Probability (math.PR)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: 60F10, 47A10, 60F25

description: The essential spectral radius of a sub-Markovian process is defined as the infimum of the spectral radiuses of all local perturbations of the process. When the family of rescaled processes satisfies sample path large deviation principle, the spectral radius and the essential spectral radius are expressed in terms of the rate function. The paper is motivated by applications to reflected diffusions and jump Markov processes describing stochastic networks for which the sample path large deviation principle has been established and the rate function has been identified while essential spectral radius has not been calculated.
description: 32 pages, 1 figure, to be published in "Probability Theory and Related Fields"
Additional file 3 of Effects of tumor-specific CAP1 expression and body constitution on clinical outcomes in patients with early breast cancer
Creators: name: Bergqvist, Malin
name: Elebro, Karin
name: Sandsveden, Malte
name: Borgquist, Signe
name: Rosendahl, Ann H.
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biotechnology
subject: Cancer
subject: Plant Biology

description: Additional file 3. Distribution of breast cancer treatment and CAP1 tumor-specific expression.
General scalar renormalisation group equations at three-loop order
Creators: name: Steudtner, Tom
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: For arbitrary scalar QFTs in four dimensions, renormalisation group equations of quartic and cubic interactions, mass terms, as well as field anomalous dimensions are computed at three-loop order in the $\overline{\text{MS}}$ scheme. Utilising pre-existing literature expressions for a specific model, loop integrals are avoided and templates for general theories are obtained. We reiterate known four-loop expressions, and derive $β$ functions for scalar masses and cubic interactions from it. As an example, the results are applied to compute all renormalisation group equations in $U(n) \times U(n)$ scalar theories.
description: match published version, corrected eq.(4.5)
Standard Model bundles of the heterotic string
Creators: name: Curio, Gottfried
Publisher: name: arXiv
Year: 2004
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We show how to construct supersymmetric three-generation models with gauge group and matter content of the Standard Model in the framework of non-simply-connected elliptically fibered Calabi-Yau manifolds Z. The elliptic fibration on a cover Calabi-Yau, where the model has 6 generations of SU(5) and the bundle is given via the spectral cover description, has a second section leading to the needed free involution. The relevant involution on the defining spectral data of the bundle is identified for a general Calabi-Yau of this type and invariant bundles are generally constructible.
description: 23 pp; minor remarks added