cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Instanton Induced Open String Superpotentials and Branes at Singularities
Creators: name: Ibanez, L. E.
name: Uranga, A. M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We study different aspects of the non-perturbative superpotentials induced by Euclidean E3-branes on systems of D3/D7-branes located at Abelian orbifold singularities. We discuss in detail how the induced couplings are consistent with the U(1) symmetries carried by the D3/D7-branes. We construct different compact and non-compact examples, and show phenomenologically relevant couplings like $μ$-terms or certain Yukawa couplings generated by these E3 instantons. Some other novel effects are described. We show an example where E3-instantons combine with standard gauge instantons to yield new multi-instanton effects contributing to superpotential, along the lines of ref.\cite{geu}. In the case of non-SUSY $Z_N$ tachyon-free singularities it is shown how E3-instantons give rise to non perturbative scalar couplings including exponentially suppressed scalar bilinears.
description: 41 pages, 2 figures
Additional file 6 of Genome-wide analysis reveals molecular convergence underlying domestication in 7 bird and mammals
Creators: name: Hou, Yali
name: Qi, Furong
name: Bai, Xue
name: Ren, Tong
name: Shen, Xu
name: Chu, Qin
name: Zhang, Xiquan
name: Lu, Xuemei
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Evolutionary Biology
subject: Environmental Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Developmental Biology

description: Additional file 6: Figure S5. Clustering analyses of gene expression in cerebrum and cerebellum across chicken populations.
A superconducting focal plane array for ultraviolet, optical, and near-infrared astrophysics
Creators: name: Mazin, Benjamin A.
name: Bumble, Bruce
name: Meeker, Seth R.
name: O'Brien, Kieran
name: McHugh, Sean
name: Langman, Eric
Publisher: name: arXiv
Year: 2011
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: Microwave Kinetic Inductance Detectors, or MKIDs, have proven to be a powerful cryogenic detector technology due to their sensitivity and the ease with which they can be multiplexed into large arrays. A MKID is an energy sensor based on a photon-variable superconducting inductance in a lithographed microresonator, and is capable of functioning as a photon detector across the electromagnetic spectrum as well as a particle detector. Here we describe the first successful effort to create a photon-counting, energy-resolving ultraviolet, optical, and near infrared MKID focal plane array. These new Optical Lumped Element (OLE) MKID arrays have significant advantages over semiconductor detectors like charge coupled devices (CCDs). They can count individual photons with essentially no false counts and determine the energy and arrival time of every photon with good quantum efficiency. Their physical pixel size and maximum count rate is well matched with large telescopes. These capabilities enable powerful new astrophysical instruments usable from the ground and space. MKIDs could eventually supplant semiconductor detectors for most astronomical instrumentation, and will be useful for other disciplines such as quantum optics and biological imaging.
description: 9 pages, 5 figures, accepted for publication in Optics Express
Modeling the Morphology of White-Light Flares
Creators: name: Tovar Mendoza, Guadalupe
name: Davenport, James R. A.
name: Hawley, Suzanne L.
Publisher: name: Zenodo
Year: 2021
Subjects: stellar astrophysics

description: Stellar variability is a limiting factor for planet detection and characterization, particularly around active stars. By understanding the light curve profile of flares on active M-dwarfs we can help improve exoplanet detection and characterization. Here we revisit one of the most active stars from the Kepler mission, the M4 dwarf GJ 1243, and use a sample of 303 stellar flares from 11 months of 1-minute cadence light curves to study the empirical morphology of stellar flares. We use a Gaussian process detrending technique to account for the underlying starspots. We present an improved analytic, continuous flare template that is generated by stacking the flares in a scaled time and amplitude and using Markov Chain Monte Carlo to fit the model. Our model is defined using classical flare events, but can also be used to model complex, multi-peaked flare events. We test our model using TESS data at both the 2-minute and 20-second cadence modes, showing the general utility of our empirical flare template.
description: {"references": ["Davenport, James R.A (2014) arXiv:1411.3723v1", "Hawley, Suzanne L. (2014) arXiv:1410.7779v1", "Jackman, James A. G. (2018) arXiv:1804.03377v1", "Foreman-Mackey, Daniel (2018) arxiv:1801.10156"]}
Non-exponential decoherence of radio-frequency resonance rotation of spin in storage rings
Creators: name: Saleev, A.
name: Nikolaev, N. N.
name: Rathmann, F.
name: Hinder, F.
name: Pretz, J.
name: Rosenthal, M.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Nuclear Experiment (nucl-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: Precision experiments, such as the search for electric dipole moments of charged particles using radiofrequency spin rotators in storage rings, demand for maintaining the exact spin resonance condition for several thousand seconds. Synchrotron oscillations in the stored beam modulate the spin tune of off-central particles, moving it off the perfect resonance condition set for central particles on the reference orbit. Here we report an analytic description of how synchrotron oscillations lead to non-exponential decoherence of the radiofrequency resonance driven up-down spin rotations. This non-exponential decoherence is shown to be accompanied by a nontrivial walk of the spin phase. We also comment on sensitivity of the decoherence rate to the harmonics of the radiofreqency spin rotator and a possibility to check predictions of decoherence-free magic energies.
A Systematic Search for Multiplanet Systems in TESS FFIs
Creators: name: Tey, Evan
name: Huang, Chelsea
name: Kunimoto, Michelle
Publisher: name: Zenodo
Year: 2021
Subjects: Exoplanets

description: Multiplanet systems are rich environments for comparison studies of exoplanets. Kepler found an abundance of these systems, putting TESS in a good position to discover more. In particular, TESS should find 100s of multiplanet systems (Huang et al. 2018) around brighter stars, making it easier to characterize them with mass measurements or atmospheric spectroscopy. So far, though, systematic multiplanet searches have only been conducted with the SPOC pipeline on the short cadence light curves. In this talk, I present results from the first systematic search for multiplanet systems using TESS Full-Frame Images -- broadening the search for multiplanet systems to 150,000 bright main sequence stars. I use Threshold-Crossing Events from the Quick Look Pipeline (QLP) as starting points for a search of multiplanet systems around main sequence stars with Tmag < 12.5. I show results from Years 1 through 3 and have also integrated the code into QLP for Year 4+. I’ll discuss newly discovered systems in context of existing multiplanet system statistics and suggest interesting systems for follow-up. Together with known systems, these new multiplanet systems will improve our understanding of planetary system formation and evolution.
description: {"references": ["arXiv:2011.06459", "arXiv:astro-ph/0206099"]}
Tree Embeddings for Two-Edge-Connected Network Design
Creators: name: Gupta, Anupam
name: Ravishankar  Krishnaswamy
name: Ramamoorthi Ravi
Publisher: name: Carnegie Mellon University
Year: 2005
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: The group Steiner problem is a classical network design problem where we are given a graph and a collection of groups of vertices, and want to build a min-cost subgraph that connects the root vertex to at least one vertex from each group. What if we wanted to build a subgraph that two-edge-connects the root to each group|that is, for every group g ⊆ V , the subgraph should contain two edge-disjoint paths from the root to some vertex in g? What if we wanted the two edge-disjoint paths to end up at distinct vertices in the group, so that the loss of a single member of the group would not destroy connectivity? In this paper, we investigate tree-embedding techniques that can be used to solve these and other 2-edge-connected network design problems. We illustrate the potential of these techniques by giving poly-logarithmic approximation algorithms for two-edge-connected versions of the group Steiner, connected facility location, buy-at-bulk, and the k-MST problems.
Sharp Superconductor-Insulator Transition in Short Wires
Creators: name: Meidan, Dganit
name: Oreg, Yuval
name: Refael, Gil
name: Smith, Robert A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Recent experiments on short MoGe nanowires show a sharp superconductor-insulator transition tuned by the normal state resistance of the wire, with a critical resistance of $R_c\approx R_Q= h/(4e^2)$. These results are at odds with a broad range of theoretical work on Josephson-like systems that predicts a smooth transition, tuned by the value of the resistance that shunts the junction. We develop a self-consistent renormalization group treatment of interacting phase-slips and their dual counterparts, correlated cooper pair tunneling, beyond the dilute approximation. This analysis leads to a very sharp transition with a critical resistance of $R_Q$. The addition of the quasi-particles' resistance at finite temperature leads to a quantitative agreement with the experimental results. This self-consistent renormalization group method should also be applicable to other physical systems that can be mapped onto similar sine-Gordon models, in the previously inaccessible intermediate-coupling regime.
description: 11 pages, 5 figures. Contribution to the proceedings of "Fluctuations and phase transitions in superconductors", Nazareth Ilit, Israel, 2007. To be published in Physica C, vol. 468
Disentangling population strategies of two cladocerans adapted to different ultraviolet regimes
Creators: name: Fernández, Carla E.
name: Campero, Melina
name: Uvo, Cintia
name: Hansson, Lars-Anders
Publisher: name: arXiv
Year: 2018
Subjects: subject: Populations and Evolution (q-bio.PE)
subject: FOS: Biological sciences

description: Zooplankton have evolved several mechanisms to deal with environmental threats, such as ultraviolet radiation (UVR), and in order to identify strategies inherent to organisms exposed to different UVR environments, we here examine life-history traits of two lineages of Daphnia pulex. The lineages differed in the UVR dose they had received at their place of origin from extremely high UVR stress at high-altitude Bolivian lakes to low UVR stress near the sea level in temperate Sweden. Nine life-history variables of each lineage were analyzed in laboratory experiments in the presence and the absence of sub-lethal doses of UVR (UV-A band), and we identified trade-offs among variables through structural equation modeling (SEM). The UVR treatment was detrimental to almost all life-history variables of both lineages; however, the Daphnia historically exposed to higher doses of UVR (HighUV) showed a higher overall fecundity than those historically exposed to lower doses of UVR (LowUV). The total offspring and ephippia production, as well as the number of clutches and number of offspring at first reproduction, was directly affected by UVR in both lineages. Main differences between lineages involved indirect effects that affected offspring production as the age at first reproduction. We here show that organisms within the same species have developed different strategies as responses to UVR, although no increased physiological tolerance or plasticity was shown by the HighUV lineage. In addition to known tolerance strategies to UVR, including avoidance, prevention, or repairing of damages, we here propose a population strategy that includes early reproduction and high fertility, which we show compensated for the fitness loss imposed by UVR stress.
description: 11 pages
Mixed partial-wave scattering with spin-orbit coupling and validity of pseudo-potentials
Creators: name: Cui, Xiaoling
Publisher: name: arXiv
Year: 2011
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: We present exact solutions of two-body problem for spin-1/2 fermions with isotropic spin-orbit(SO) coupling and interacting with an arbitrary short-range potential. We find that in each partial-wave scattering channel, the parametrization of two-body wavefunction at short inter-particle distance depends on the scattering amplitudes of all channels. This reveals the mixed partial-wave scattering induced by SO couplings. By comparing with results from a square-well potential, we investigate the validity of original pseudo-potential models in the presence of SO coupling. We find the s-wave pseudo-potential provides a good approximation for low-energy solutions near s-wave resonances, given the length scale of SO coupling much longer than the potential range. However, near p-wave resonance the p-wave pseudo-potential gives low-energy solutions that are qualitatively different from exact ones, based on which we conclude that the p-wave model can not be applied to the fermion system if the SO coupling strength is larger or comparable to the Fermi momentum.
description: 10 pages, 8 figures. Published version with figures improved
Crystallography and elastic anisotropy in nickel fatigue crack initiation
Creators: name: Zhang, Xiaoxian
Publisher: name: Imperial College London
Year: 2022

description: This thesis investigates the roles of crystallography and elastic anisotropy in the fatigue crack initiation of polycrystal nickel alloy René 88DT which contains a large number of annealing twin boundaries. The crystal plasticity finite element method is employed in this work in order to conduct full-field modelling studies. Modelling results show slip localizations and corresponding plastic strain gradients develop near the twin boundaries during cyclic loading, which leads to strongly elevated local stored energy densities reflecting experimental observations of the preferential fatigue crack nucleation sites near the twin boundaries. The nucleation behaviours are demonstrated to be sensitive to the elastic anisotropy and crystallography. Elastic anisotropy is demonstrated to drive elastic constraint which results in the stress concentration near the twin boundaries, leading to high resolved shear stress on the parallel slip system. The activation of this parallel system generates the sharp slip localizations and nucleates the straight cracks which are aligned with twin boundaries. Crystallography of twin/parent pairs is found to affect the plastic strain fields, the resulting geometrically necessary dislocation density and stored energy density, which reflects the microstructure sensitivity in fatigue crack nucleation. The crystallography ahead of the crack-tip is found to be significant in crack propagation behaviors in which the grain boundaries with increasing twist angle provide increasing resistance to short crack propagation, however, the tilt angle effect is found to be weak unless the adjacent grain crystal orientation is unfavourable for slip. The evolution of the stored energy density captures these phenomena, which demonstrates the stored energy density as a potential driving force in fatigue crack nucleation and short crack propagation.
The Stellar and Observational Properties of the TESS Prime Mission 2-min Targets
Creators: name: Pepper, Joshua
name: Barclay, Thomas
name: Bouma, Luke G.
name: Burke, Christopher J.
name: Fausnaugh, Michael
name: Gaudi, B. Scott
name: Oelkers, Ryan J.
name: Stassun, Keivan G.
name: Winn, Joshua N.
Publisher: name: Zenodo
Year: 2021
Subjects: Exoplanets
TESS

description: TESS is not a statistical mission, but the data present a valuable opportunity for studies of exoplanet populations. In order to conduct such studies, it is essential to understand the properties of the target sample - why were specific stars selected, others excluded, using what criteria. The TESS prime mission produced light curves for the 2-min target stars, and is producing a larger light curve catalog from a subset of the stars observed at the 30-min cadence. Both sets were assembled using information from the TIC, with the bulk of the 2-min targets drawn from the ranked CTL. Here we describe the global properties of both the 2-min and 30-min sets, including their physical parameters and their observational and variability characteristics from TESS related to transit detection. We review the "K dwarf desert", the trends of photometric precision with stellar type, and the implications of the difference between the CTL population and the actual 2-min cadence population.
description: {"references": ["Stassun, Keivan et al. (2018). The TESS Input Catalog and Candidate Target List, AJ, 156, 102", "Stassun, Keivan et al. (2019) The Revised TESS Input Catalog and Candidate Target List, AJ, 158, 138"]}
TRECVID: The Utility of a Content-based Video Retrieval Evaluation
Creators: name: Hauptmann, Alexander
Publisher: name: Carnegie Mellon University
Year: 1988
Subjects: subject: 89999 Information and Computing Sciences not elsewhere classified
subject: FOS: Computer and information sciences

description: TRECVID, an annual retrieval evaluation benchmark organized by NIST, encourages research in information retrieval from digital video. TRECVID benchmarking covers both interactive and manual searching by end users, as well as the benchmarking of some supporting technologies including shot boundary detection, extraction of semantic features, and the automatic segmentation of TV news broadcasts. Evaluations done in the context of the TRECVID benchmarks show that generally, speech transcripts and annotations provide the single most important clue for successful retrieval. However, automatically finding the individual images is still a tremendous and unsolved challenge. The evaluations repeatedly found that none of the multimedia analysis and retrieval techniques provide a significant benefit over retrieval using only textual information such as from automatic speech recognition transcripts or closed captions. In interactive systems, we do find significant differences among the top systems, indicating that interfaces can make a huge difference for effective video/image search. For interactive tasks efficient interfaces require few key clicks, but display large numbers of images for visual inspection by the user. The text search finds the right context region in the video in general, but to select specific relevant images we need good interfaces to easily browse the storyboard pictures. In general, TRECVID has motivated the video retrieval community to be honest about what we don't know how to do well (sometimes through painful failures), and has focused us to work on the actual task of video retrieval, as opposed to flashy demos based on technological capabilities.
J0815+4729: A chemically primitive dwarf star in the Galactic Halo observed with Gran Telescopio Canarias
Creators: name: Aguado, D. S.
name: Hernández, J. I. González
name: Prieto, C. Allende
name: Rebolo, R.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We report the discovery of the carbon-rich ultra metal-poor unevolved star J0815+4729. This dwarf star was selected from SDSS/BOSS as a metal-poor candidate and follow-up spectroscopic observations at medium-resolution were obtained with ISIS at William Herschel Telescope and OSIRIS at Gran Telescopio de Canarias. We use the FERRE code to derive the main stellar parameters, Teff=6215+-82 K, and logg=4.7+-0.5, an upper limit to the metallicity of [Fe/H]~+5.0, while [alpha/Fe]=0.4 is assumed. The metallicity upper limit is based on the Ca II K line, that at the resolving power of the OSIRIS spectrograph cannot be resolved from possible interstellar calcium. The star could be the most iron-poor unevolved star known, and is also amongst the ones with the largest overabundances of carbon. High-resolution spectroscopy of J0815+4729 will certainly help to derive other important element abundances, possibly providing new fundamental constraints on the early stages of the Universe, the formation of the first stars and the properties of the first supernovae.
description: Accepted in ApJ Letters
The multicovering radius problem for some types of discrete structures
Creators: name: Aw, Alan J.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Combinatorics (math.CO)
subject: Information Theory (cs.IT)
subject: FOS: Mathematics
subject: FOS: Computer and information sciences
subject: 05D40, 94B99

description: The covering radius problem is a question in coding theory concerned with finding the minimum radius $r$ such that, given a code that is a subset of an underlying metric space, balls of radius $r$ over its code words cover the entire metric space. Klapper introduced a code parameter, called the multicovering radius, which is a generalization of the covering radius. In this paper, we introduce an analogue of the multicovering radius for permutation codes (cf. Keevash and Ku, 2006) and for codes of perfect matchings (cf. Aw and Ku, 2012). We apply probabilistic tools to give some lower bounds on the multicovering radii of these codes. In the process of obtaining these results, we also correct an error in the proof of the lower bound of the covering radius that appeared in Keevash and Ku (2006). We conclude with a discussion of the multicovering radius problem in an even more general context, which offers room for further research.
description: To appear in Designs, Codes and Cryptography (2012)
A study of Galois objects for algebraic quantum groups
Creators: name: De Commer, K.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Quantum Algebra (math.QA)
subject: Rings and Algebras (math.RA)
subject: FOS: Mathematics
subject: 16W30

description: We supplement the study of Galois theory for algebraic quantum groups started in the paper 'Galois Theory for Multiplier Hopf Algebras with Integrals' by A. Van Daele and Y.H. Zhang. We examine the structure of the Galois objects: algebras equipped with a Galois coaction such that only the scalars are coinvariants. We show how their structure is as rich as the one of the quantum groups themselves: there are two distinguished weak K.M.S. functionals, related by a modular element, and there is an analogue of the antipode squared. We also show how to reflect the quantum group across the Galois object to obtain a (possibly) new algebraic quantum group. We end by considering an example.
description: 32 pages
title: ADCO, Cartulaire de Cîteaux pour les possessions de Dijon et du Dijonnais (XVe siècle), Cart. 175 (11 H 479), 115 folios, f. 0057
Creators: name: de la Côte d'Or, Archives départementales
name: Archives Départementales De La Côte-D'Or
name: Petot, Frédérique
name: Projet CBMA
name: CG21/F.PETOT/2017
name: Petot, Frédéric
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2020
Subjects: subject: cartulaire
subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris
subject: Corpus Burgundiae Medii Aevi
subject: Chartes de la Bourgogne du Moyen Âge

description: Cartulaire de Cîteaux pour les possessions de Dijon et du Dijonnais (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 175 (11 H 479), 115 folios, f. 0057, Numérisation en mode image.
description: Relation: http://www.cbma-project.eu/
description: Bibliographic citation: Cartulaire de Cîteaux pour les possessions de Dijon et du Dijonnais (XVe siècle), Archives départementales de la Côte-d'Or, Cart. 175 (11 H 479), 115 folios, f. 0057, in Projet CBMA - Corpus Burgundiae Medii Aevi [Ressource en ligne], https:// manuscrits.cbma-project.eu/
description: Provenance: abbaye de Cîteaux
description: Provenance: http://www.wikidata.org/entity/Q843261
description: Provenance: https://www.geonames.org/3024876
description: Provenance: http://www.idref.fr/030974844/id
description: Provenance: https://catalogue.bnf.fr/ark:/12148/cb12228351v
Clumpy photon-dominated regions in Carina. I. [CI] and mid-J CO lines in two 4'x4' fields
Creators: name: Kramer, C.
name: Cubick, M.
name: Roellig, M.
name: Sun, K.
name: Yonekura, Y.
name: Aravena, M.
name: Bensch, F.
name: Benz, A.
name: Bertoldi, F.
name: Bronfman, L.
name: Fujishita, M.
name: Fukui, Y.
name: Graf, U. U.
name: Hitschfeld, M.
name: Honingh, N.
name: Ito, S.
name: Jakob, H.
name: Jacobs, K.
name: Klein, U.
name: Koo, B. -C.
name: May, J.
name: Miller, M.
name: Miyamoto, Y.
name: Mizuno, N.
name: Onishi, T.
name: Park, Y. -S.
name: Pineda, J. L.
name: Rabanus, D.
name: Sasago, H.
name: Schieder, R.
name: Simon, R.
name: Stutzki, J.
name: Volgenau, N.
name: Yamamoto, H.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The Carina region is an excellent astrophysical laboratory for studying the feedback mechanisms of newly born, very massive stars within their natal giant molecular clouds (GMCs) at only 2.35 kpc distance. We use a clumpy PDR model to analyse the observed intensities of atomic carbon and CO and to derive the excitation conditions of the gas. The NANTEN2-4m submillimeter telescope was used to map the [CI] 3P1-3P0, 3P2-3P1 and CO 4-3, 7-6 lines in two 4'x4' regions of Carina where molecular material interfaces with radiation from the massive star clusters. One region is the northern molecular cloud near the compact OB cluster Tr14, and the second region is in the molecular cloud south of etaCar and Tr16. These data were combined with 13CO SEST spectra, HIRES/IRAS 60um and 100um maps of the FIR continuum, and maps of 8um IRAC/Spitzer and MSX emission. We used the HIRES far-infrared dust data to create a map of the FUV field heating the gas. The northern region shows an FUV field of a few 1000 in Draine units while the field of the southern region is about a factor 10 weaker. We constructed models consisting of an ensemble of small spherically symmetric PDR clumps within the 38" beam (0.43pc), which follow canonical power-law mass and mass-size distributions. We find that an average local clump density of 2x10**5 cm-3 is needed to reproduce the observed line emission at two selected interface positions. Stationary, clumpy PDR models reproduce the observed cooling lines of atomic carbon and CO at two positions in the Carina Nebula.
description: accepted by A&A
Scattering of Klein-Gordon particles in the background of mixed scalar-vector generalized symmetric Woods-Saxon potential
Creators: name: Lütfüoğlu, B. C.
name: Lipovský, J.
name: Kříž, J.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Nuclear Theory (nucl-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Recently, it has been shown that the generalized symmetric Woods-Saxon potential energy, in which surface interaction terms are taken into account, describes the physical processes better than the standard form. Therefore in this study, we investigate the scattering of Klein-Gordon particles in the presence of both generalized symmetric Woods-Saxon vector and scalar potential. In one spatial dimension we obtain the solutions in terms of hypergeometric functions for spin symmetric or pseudo-spin symmetric cases. Finally, we plot transmission and reflection probabilities for incident particles with negative and positive energy for some critical arbitrary parameters and discuss the correlations for both cases.
description: 31 pages, 14 figures
Brauer groups of singular del Pezzo surfaces
Creators: name: Bright, Martin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics
subject: 14F22

description: We describe the effect of rational singularities on the Brauer group of a surface, and compute the Brauer groups of all singular del Pezzo surfaces over an algebraically closed field.
description: 6 pages
Additional file 1 of Application of network pharmacology and molecular docking to elucidate the potential mechanism of Eucommia ulmoides-Radix Achyranthis Bidentatae against osteoarthritis
Creators: name: Gong-Hui Jian
name: Bing-Zhu Su
name: Zhou, Wen-Jia
name: Xiong, Hui
Publisher: name: figshare
Year: 2020
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Pharmacology
subject: Biotechnology
subject: Ecology
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: Cancer
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Additional file 1: Table S1. Active compounds of Eucommia ulmoides (EU)-Radix Achyranthis Bidentatae (RAB). Table S2. Potential targets of Eucommia ulmoides (EU)-Radix Achyranthis Bidentatae (RAB). Table S3. Cluster network of target genes of Eucommia ulmoides (EU)-Radix Achyranthis Bidentatae (RAB) against Osteoarthritis (OA).
Largest sparse subgraphs of random graphs
Creators: name: Fountoulakis, Nikolaos
name: Kang, Ross J.
name: McDiarmid, Colin
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: Probability (math.PR)
subject: FOS: Mathematics
subject: 05C80, 05A16

description: For the Erdős-Rényi random graph G(n,p), we give a precise asymptotic formula for the size of a largest vertex subset in G(n,p) that induces a subgraph with average degree at most t, provided that p = p(n) is not too small and t = t(n) is not too large. In the case of fixed t and p, we find that this value is asymptotically almost surely concentrated on at most two explicitly given points. This generalises a result on the independence number of random graphs. For both the upper and lower bounds, we rely on large deviations inequalities for the binomial distribution.
description: 15 pages
Unusual Coulomb excitations in ABC-stacked trilayer graphene
Creators: name: Lin, Chiun-Yan
name: Lee, Ming-Hsun
name: Lin, Ming-Fa
Publisher: name: arXiv
Year: 2018
Subjects: subject: Computational Physics (physics.comp-ph)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: The layer-based random-phase approximation is further developed to investigate electronic excitations in tri-layer ABC-stacked graphene. All the layer-dependent atomic interactions and Coulomb interactions are included in the dynamic charge screening. There exist rich and unique (momentum, frequency)-excitation phase diagrams, in which the complex single-particle excitations and five kinds of plasmon modes, are dominated by the unusual energy bands and doping carrier densities. The latter frequently experience the significant Landau damping due to the former, leading to the coexistence/destruction in the energy loss spectra. Specifically, the dispersion of the only acoustic plasmon in pristine case is dramatically changed from linear into quadratic even at very low doping.
description: 17 pages and 4 figures
Exoplanet phase curves from TESS: Results from the Primary Mission and future prospects
Creators: name: Wong, Ian
name: Shporer, Avi
name: Kitzmann, Daniel
name: Heng, Kevin
name: Fetherolf, Tara
name: Daylan, Tansu
name: Benneke, Björn
Publisher: name: Zenodo
Year: 2021
Subjects: Exoplanets

description: The continuous, long-baseline photometry provided by TESS has enabled detailed phase curve studies of planetary systems. Over the course of the two-year Primary Mission, we carried out a systematic light curve analysis of both known targets and newly discovered systems. By measuring the phase curve, we probed fundamental physical quantities, such as the planet’s dayside temperature, Bond albedo, and day-night heat recirculation efficiency, as well as the host star’s response to the mutual star-planet gravitational interaction. In this talk, I provide an overview of the main results from the Primary Mission. We detected phase curves for over 20 targets and combined TESS-band eclipse measurements with Spitzer secondary eclipse depths to obtain self-consistent dayside brightness temperatures and optical geometric albedos. These albedo measurements have revealed an intriguing apparent trend between increasing dayside temperature and increasing geometric albedo for hot Jupiters. With TESS now well into its Extended Mission, we consider possible avenues for follow-up intensive atmospheric characterization and discuss fruitful opportunities for future study as the telescope revisits these systems in the coming years.
description: {"references": ["Addison, B.C., Knudstrup, E., Wong, I., et al. 2021, AJ, in revision", "Ahlers, J.P., Johnson, M.C., Stassun, K.G., et al. 2020, AJ, 160, 4", "Cabot, S.H.C., Bello-Arufe, A., Mendon\u00e7a, J.M., et al. 2021, AJ, in revision", "Mansfield, M., Bean, J.L., Stevenson, K.B., et al. 2020, ApjL, 888, L15", "Shporer, A. 2017, PASP, 129, 072001", "Shporer, A., Wong, I., Huang, C.X., et al. 2019, AJ, 157, 178", "Wong, I., Kitzmann, D., Shporer, A., et al. 2021a, AJ, in press", "Wong, I., Shporer, A., Daylan, T. et al. 2020a, AJ, 160, 155", "Wong, I., Shporer, A., Kitzmann, D., et al. 2020b, AJ, 160, 88", "Wong, I., Shporer, A., Zhou, G., et al. 2021b, AJ, submitted", "Zhou, G., Huang, C.X., Bakos, G.\u00c1., et al. 2019, AJ, 158, 141"]}
Super-horizon fluctuations and acoustic oscillations in relativistic heavy-ion collisions
Creators: name: Mishra, Ananta P.
name: Mohapatra, Ranjita K.
name: Saumia, P. S.
name: Srivastava, Ajit M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Astrophysics (astro-ph)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Experiment (nucl-ex)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We focus on the initial state spatial anisotropies, originating at the thermalization stage, for central collisions in relativistic heavy-ion collisions. We propose that a plot of the root mean square values of the flow coefficients $\sqrt{\bar {v_n^2}} \equiv v_n^{rms}$, calculated in a lab fixed coordinate system, for a large range of $n$, from 1 to about 30, can give non-trivial information about the initial stages of the system and its evolution. We also argue that for all wavelengths $λ$ of the anisotropy (at the surface of the plasma region) much larger than the acoustic horizon size $H_s^{fr}$ at the freezeout stage, the resulting values of $v_n^{rms}$ should be suppressed by a factor of order $2H_s^{fr}/λ$. With initial flow being zero, we discuss the possibility that the resulting flow could show imprints of coherent oscillations in the plot of $v_n^{rms}$ for sub-horizon modes. For gold-gold collision at 200 GeV, these features are expected to occur for n $\ge$ 5, with $n < 4$ modes showing supression. This has strong similarities with the physics of the anisotropies of the cosmic microwave background radiation (CMBR) resulting from inflationary density fluctuations in the universe. It seems possible that the statistical fluctuations due to finite multiplicity may not be able to mask such features in the flow data, or, at least a non-trivial overall shape of the plot of $v_n^{rms}$ may be inferred. In that case, the successes of analysis of CMBR anisotropy power spectrum to get cosmological parameters can be applied for relativistic heavy-ion collisions to learn about various relevant parameters at the early stages of the evolving system.
description: 14 pages, 5 figures, paper re-organized for better presentation, a new figure added
Infrared, terahertz, and microwave spectroscopy of the soft and central modes in Pb(Mg1/3Nb2/3)O3
Creators: name: Nuzhnyy, D.
name: Petzelt, J.
name: Bovtun, V.
name: Kempa, M.
name: Kamba, S.
name: Hlinka, J.
name: Hehlen, B.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: From the new infrared (IR) reflectivity and time-domain terahertz (THz) spectra combined with available high-frequency dielectric data above the MHz range in a broad temperature range of 10-900 K, a full picture of the soft and central mode behavior in the classical relaxor ferroelectric Pb(Mg1/3Nb2/3)O3 (PMN) is suggested. A detailed comparison is given with the recent hyper-Raman spectroscopy data (Phys. Rev. Lett. 117, 155501 (2016)), and also with other available experiments based on inelastic light and neutron scattering. The closest agreement is with the hyper-Raman data, both techniques yield the same number of soft-mode components and the same high-temperature softening towards the temperature T* ~ 400 K. In addition to evaluation of the IR-THz data using fitting with standard factorized form of the dielectric function, we performed a successful fitting of the same data using the effective medium approach (EMA), originally based on the assumption that the mesoscopic structure of PMN consists of randomly oriented uniaxially anisotropic polar nanodomains (PNDs) with somewhat harder TO polar modes in the direction along the local PND dipole (Phys. Rev. Lett. 96, 027601 (2006)). Evaluation using the Bruggeman EMA modelling has been successfully applied in the entire investigated temperature range. These results suggest that the response perpendicular to the local dipole moment, at high temperatures induced by random fields rather than PNDs, undergoes a classical softening from high temperatures with permittivity obeying the Curie-Weiss law, eps_per = C/(T-Tc), C = 1.7 x 10^5 K and Tc = 380 K. Below the Burns temperature ~620 K, a GHz relaxation ascribed to flipping of the PNDs emerges from the soft mode response, slows down and broadens, remaining quite strong towards the cryogenic temperatures, where it can be assigned to fluctuations of the PND boundaries.
Supplementary Methods from The influence of jaw-muscle fibre-type phenotypes on estimating maximum muscle and bite forces in primates
Creators: name: Holmes, Megan
name: Taylor, Andrea B.
Publisher: name: The Royal Society
Year: 2021
Subjects: subject: 110601 Biomechanics
subject: FOS: Health sciences

description: The supplementary methods document provides a clear step-by-step description of how %MF was calculated using one of the specimens (ABT8) as an example.
Work and information from thermal states after subtraction of energy quanta
Creators: name: Hloušek, J.
name: Ježek, M.
name: Filip, R.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Quantum oscillators prepared out of thermal equilibrium can be used to produce work and transmit information. By intensive cooling of a single oscillator, its thermal energy deterministically dissipates to a colder environment, and the oscillator substantially reduces its entropy. This out-of-equilibrium state allows us to obtain work and to carry information. Here, we propose and experimentally demonstrate an advanced approach, conditionally preparing more efficient out-of-equilibrium states only by a weak dissipation, an inefficient quantum measurement of the dissipated thermal energy, and subsequent triggering of that states. Although it conditionally subtracts the energy quanta from the oscillator, average energy grows, and second-order correlation function approaches unity as by coherent external driving. On the other hand, the Fano factor remains constant and the entropy of the subtracted state increases, which raise doubts about a possible application of this approach. To resolve it, we predict and experimentally verify that both available work and transmitted information can be conditionally higher in this case than by arbitrary cooling or adequate thermal heating up to the same average energy. It qualifies the conditional procedure as a useful source for experiments in quantum information and thermodynamics.
description: 10 pages, 6 figures
title: 01_1313
Creators: name: Wesley Baldwin, John
name: Baldwin, John W.
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2018
Subjects: subject: LaMOP
subject: Laboratoire de Médiévistique Occidentale de Paris

description: L'ensemble de ces notes ont été crée par John Baldwin lors d'une de ses premières périodes de résidence à Paris. Ces documents comprennent tous les magistri qu’il avait pu rencontrer dans ses sources. Aux XIIème et XIIIème siècles, les universités n'existant pas encore, le titre de magister s'il évoque certainement une compétence n'est pas rattaché de façon systématique au passage par les écoles. De surcroît, les magistris sont le plus souvent désignés par leur seul prénom. La lecture de ces données est donc difficile et suppose un long travail pour tenter d'identifier un individu auquel on pourrait rattacher plusieurs mentions. John Baldwin avait donc renoncé à utiliser ces données pour donner un prolongement à sa magnifique étude sur les gradués d'université et leur emploi par les Capétiens et les Plantagenêts. Néanmoins, il a conservé ces données et elles sont potentiellement très utile dans le cadre de Studium, comme le sont toutes les mentions dans les volumes des Fasti Ecclesiae Gallicanae de chanoines portant ce titre de magister sans autres précisions. L'ampleur des dépouillements rend ces données très utiles et nous devons une grande reconnaissance à John Baldwin pour avoir pris la peine de faire photocopier ses fiches et de nous les avoir transmises amicalement.
Les données ainsi que les images des fiches sont accessibles sur le site Internet à l'adresse suivante : http://studium-baldwin.lamop.fr/.
Les transcriptions des fiches ont été effectuées par des étudiants de Paris 1 Panthéon - Sorbonne mais elles n'ont pas été corrigées par la suite.
description: Relation: https://lamop.hypotheses.org/
On the diameter of random planar graphs
Creators: name: Chapuy, Guillaume
name: Fusy, Éric
name: Giménez, Omer
name: Noy, Marc
Publisher: name: arXiv
Year: 2012
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: We show that the diameter D(G_n) of a random labelled connected planar graph with n vertices is equal to n^{1/4+o(1)}, in probability. More precisely there exists a constant c>0 such that the probability that D(G_n) lies in the interval (n^{1/4-ε},n^{1/4+ε}) is greater than 1-\exp(-n^{cε}) for ε small enough and n>n_0(ε). We prove similar statements for 2-connected and 3-connected planar graphs and maps.
description: 24 pages, 7 figures
Stochastic effects on phase-space holes and clumps in kinetic systems near marginal stability
Creators: name: Woods, Benjamin J. Q.
name: Duarte, Vinicius N.
name: De-Gol, Anthony P.
name: Gorelenkov, Nikolai N.
name: Vann, Roddy G. L.
Publisher: name: arXiv
Year: 2017
Subjects: subject: Plasma Physics (physics.plasm-ph)
subject: FOS: Physical sciences

description: The creation and subsequent evolution of marginally-unstable modes have been observed in a wide range of fusion devices. This behaviour has been successfully explained, for a single frequency shifting mode, in terms of phase-space structures known as a `hole' and `clump'. Here, we introduce stochasticity into a 1D kinetic model, affecting the formation and evolution of resonant modes in the system. We find that noise in the fast particle distribution or electric field leads to a shift in the asymptotic behaviour of a chirping resonant mode; this noise heuristically maps onto microturbulence via canonical toroidal momentum scattering, affecting hole and clump formation. The profile of a single bursting event in mode amplitude is shown to be stochastic, with small changes in initial conditions affecting the lifetime of a hole and clump. As an extension to the work of Lang and Fu, we find that an intermediate regime exists where noise serves to decrease the effective collisionality, where microturbulence works against pitch-angle scattering.
description: 13 pages, 21 figures
Renormalization group study of transport through a superconducting junction of multiple one-dimensional quantum wires
Creators: name: Das, Sourin
name: Rao, Sumathi
name: Saha, Arijit
Publisher: name: arXiv
Year: 2007
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We investigate transport properties of a superconducting junction of many ($N \ge 2$) one-dimensional quantum wires. We include the effectofelectron-electron interaction within the one-dimensional quantum wire using a weak interaction renormalization group procedure. Due to the proximity effect, transport across the junction occurs via direct tunneling as well as via the crossed Andreev channel. We find that the fixed point structure of this system is far more rich than the fixed point structure of a normal metal$-$superconductor junction ($N = 1$), where we only have two fixed points - the fully insulating fixed point or the Andreev fixed point. Even a two wire (N=2)system with a superconducting junction i.e. a normalmetal$-$superconductor$-$normal metal structure, has non-trivialfixed points with intermediate transmissions and reflections. We also include electron-electron interaction induced back-scattering in the quantum wires in our study and hence obtain non-Luttinger liquid behaviour. It is interesting to note that {\textsl{(a)}} effects due to inclusion of electron-electron interaction induced back-scattering in the wire, and {\textsl{(b)}} competition between the charge transport via the electron and hole channels across the junction, give rise to a non-monotonic behavior of conductance as a functionof temperature. We also find that transport across the junction depends on two independent interaction parameters. The first one is due to the usual correlations coming from Friedel oscillations for spin-full electrons giving rise to the well-known interaction parameter (${α= (g_2-2g_1)/2 π\hbar v_F}$). The second one arises due to the scattering induced by the proximity of the superconductor and is given by(${α^\prime = (g_2 + g_1)/2 π\hbar v_F}$).
description: Final version to appear in Phys. Rev. B