cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Orientational order of the two-dimensional hard disk system
Creators: name: Jaster, Andreas
Publisher: name: arXiv
Year: 1998
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We report Monte Carlo results for the two-dimensional hard disk system. Simulations were performed in the NVT ensemble with up to 65536 disks, using a new updating scheme. We analyze the bond orientational order parameter and correlation length in the isotropic phase and the scaling behaviour of the bond orientational order parameter in the transition region. The data are consistent with predictions of the Kosterlitz-Thouless-Halperin-Nelson-Young theory, while a first-order phase transition is unlikely and a one-stage continuous transition can be ruled out.
description: 6 pages, 3 Postscript figures, uses europhys.sty
Electronic versus Phononic Friction of Xenon on Silver
Creators: name: Liebsch, A.
name: Goncalves, S.
name: Kiwi, M.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Molecular dynamics simulations of a Xe monolayer sliding on Ag(001) and Ag(111) are carried out in order to ascertain the microscopic origin of friction. For several values of the electronic contribution to the friction of individual Xe atoms, the intra-overlayer phonon dissipation is calculated as a function of the corrugation amplitude of the substrate potential, which is a pertinent parameter to consider. Within the accuracy of the numerical results and the uncertainty with which the values of the relevant parameters are known at present, we conclude that electronic and phononic dissipation channels are of similar importance. While phonon friction gives rise to the rapid variation with coverage, the electronic friction provides a roughly coverage-independent contribution to the overall sliding friction.
description: 11 pages, 8 figures
MOESM2 of Influence of volatile anesthesia versus total intravenous anesthesia on chronic postsurgical pain after cardiac surgery using the Initiative on Methods, Measurement, and Pain Assessment in Clinical Trials criteria: study protocol for a prospective randomized controlled trial
Creators: name: Yu, Hong
name: Zheng, Jian-Qiao
name: Hua, Yu-Si
name: Ren, Shuo-Fang
name: Yu, Hai
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Microbiology
subject: FOS: Biological sciences
subject: Cell Biology
subject: Genetics
subject: Physiology
subject: Developmental Biology
subject: Cancer

description: Additional file 2. SPIRIT figure.
Stenothemus tamil Svihla 2011
Creators: name: Ge, Shujuan
name: Yang, Xingke
name: Liu, Haoyu
name: Yang, Yuxia
Publisher: name: Zenodo
Year: 2021
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Cantharidae
Stenothemus
Stenothemus tamil

description: Stenothemus tamil Švihla, 2011
 Stenothemus tamil Švihla, 2011: 51, figs 24, 105‒107.
 Distribution. S. India.
 Remarks. All information including detailed specific descriptions and illustrations of type habitus and male genitalia has been provided in the original manusript by Švihla (2011), so no more is added here.
description: Published as part of Ge, Shujuan, Yang, Xingke, Liu, Haoyu & Yang, Yuxia, 2021, Definitions of two species groups of Stenothemus Bourgeois (Coleoptera, Cantharidae), with descriptions of three new species from China, pp. 139-152 in Zootaxa 5047 (2) on page 143, DOI: 10.11646/zootaxa.5047.2.3, http://zenodo.org/record/5540628
A Study of Event Shapes and Determinations of alpha_s using data of e^+e^- Annihilations at sqrt{s} = 22 to 44 GeV
Creators: name: Fernández, P. A. Movilla
name: Biebel, O.
name: Bethke, S.
name: Kluth, S.
name: Pfeifenschneider, P.
name: Collaboration, the JADE
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: Data recorded by the JADE experiment at the PETRA e^+e^- collider were used to measure the event shape observables thrust, heavy jet mass, wide and total jet broadening and the differential 2-jet rate in the Durham scheme. For the latter three observables, no experimental results have previously been presented at these energies. The distributions were compared with resummed QCD calulations (O(alpha_s^2)+NLLA), and the strong coupling constant alpha_s(Q) was determined at different energy scales Q=sqrt{s}. The results, α_s(22 GeV) = 0.161 ^{+0.016}_{-0.011}, α_s(35 GeV) = 0.143 ^{+0.011}_{-0.007}, α_s(44 GeV) = 0.137 ^{+0.010}_{-0.007}, are in agreement with previous combined results of PETRA albeit with smaller uncertainties. Together with corresponding data from LEP, the energy dependence of alpha_s is significantly tested and is found to be in good agreement with the QCD expectation. Similarly, mean values of the observables were compared to analytic QCD predictions where hadronisation effects are absorbed in calculable power corrections.
description: 36 pages, LaTeX2e, 34 .eps-files included, submitted to Z. Phys. C, revised version, with comments of referee included and some typos corrected, accepted for publication
Contact-Implicit Optimization of Locomotion Trajectories for a Quadrupedal Microrobot
Creators: name: Doshi, Neel
name: Jayaram, Kaushik
name: Goldberg, Benjamin
name: Manchester, Zachary
name: Wood, Robert J.
name: Kuindersma, Scott
Publisher: name: arXiv
Year: 2019
Subjects: subject: Robotics (cs.RO)
subject: FOS: Computer and information sciences

description: Planning locomotion trajectories for legged microrobots is challenging because of their complex morphology, high frequency passive dynamics, and discontinuous contact interactions with their environment. Consequently, such research is often driven by time-consuming experimental methods. As an alternative, we present a framework for systematically modeling, planning, and controlling legged microrobots. We develop a three-dimensional dynamic model of a 1.5 gram quadrupedal microrobot with complexity (e.g., number of degrees of freedom) similar to larger-scale legged robots. We then adapt a recently developed variational contact-implicit trajectory optimization method to generate feasible whole-body locomotion plans for this microrobot, and we demonstrate that these plans can be tracked with simple joint-space controllers. We plan and execute periodic gaits at multiple stride frequencies and on various surfaces. These gaits achieve high per-cycle velocities, including a maximum of 10.87 mm/cycle, which is 15% faster than previously measured velocities for this microrobot. Furthermore, we plan and execute a vertical jump of 9.96 mm, which is 78% of the microrobot's center-of-mass height. To the best of our knowledge, this is the first end-to-end demonstration of planning and tracking whole-body dynamic locomotion on a millimeter-scale legged microrobot.
description: RSS 2018
Additional file 2 of A genetic predictive model for precision treatment of diffuse large B-cell lymphoma with early progression
Creators: name: Ma, Jialin
name: Yan, Zheng
name: Zhang, Jiuyang
name: Zhou, Wenping
name: Yao, Zhihua
name: Wang, Haiying
name: Chu, Junfeng
name: Yao, Shuna
name: Zhao, Shuang
name: Zhang, Peipei
name: Xu, Yuanlin
name: Xia, Qingxin
name: Ma, Jie
name: Wei, Bing
name: Yang, Shujun
name: Liu, Kangdong
name: Guo, Yongjun
name: Liu, Yanyan
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Table S2. Clinical characteristics of patients with PIM1 or CD79B mutations
Finite Size Scaling of the 2D Six-Clock model
Creators: name: Itakura, M.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the isotropic-anisotropic phase transition of the two-dimensional XY model with six-fold anisotropy, using Monte Carlo renormalization group method. The result indicates difficulty of observing asymptotic critical behavior in Monte Carlo simulations, owing to the marginal flow at the fixed point.
description: Short note. revtex, 6 pages, 3 figures. To appear in J. Phys. Soc. Jpn. Vol.70 No. 2 (Feb 2001)
High-Energy Cosmic Rays from Radio Galaxies
Creators: name: Eichmann, Björn
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: A detailed investigation of radio galaxies has recently stressed these sources as the possible origin of the cosmic rays observed above $3\,\text{EeV}$. Here, the relevance of this model at energies below $3\,\text{EeV}$ is investigated. So, it is shown that the average contribution of radio galaxies can accurately explain the observed CR flux between the second knee and the ankle in the case of a strong source evolution. However, the model cannot provide the increasing heaviness and variance at energies $\lesssim 1\,\text{EeV}$ of the observed chemical composition. In addition, it is exposed that the resulting variance of the chemical composition at Earth shows also at higher energies a clear disagreement with the observations, indicating that the compositional contributions by Centaurus A and Cygnus A need to be less different.
description: arXiv admin note: text overlap with arXiv:1812.09473
Resonant Spin Excitation in an Overdoped High Temperature Superconductor
Creators: name: He, H.
name: Sidis, Y.
name: Bourges, P.
name: Gu, G. D.
name: Ivanov, A.
name: Koshizuka, N.
name: Liang, B.
name: Lin, C. T.
name: Regnault, L. P.
name: Schoenherr, E.
name: Keimer, B.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: An inelastic neutron scattering study of overdoped Bi_2Sr_2CaCu_2O_{8+δ} $ (T_c = 83 K) has revealed a resonant spin excitation in the superconducting state. The mode energy is E_res=38 meV, significantly lower than in optimally doped Bi_2Sr_2CaCu_2O_{8+δ} (T_c = 91 K, E_ res =43 meV). This observation, which indicates a constant ratio E_res /k_B T_c \sim 5.4, helps resolve a long-standing controversy about the origin of the resonant spin excitation in high-temperature superconductors.
description: final version: PRL 86, 1610 (2001)
Theoretical Study of Electrical Conduction Through a Molecule Connected to Metallic Nanocontacts
Creators: name: Emberly, Eldon
name: Kirczenow, George
Publisher: name: arXiv
Year: 1998
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: We present a theoretical study of electron transport through a molecule connected to two metallic nanocontacts. The system investigated is 1,4 benzene-dithiolate (BDT) chemically bonded to two Au contacts. The surface chemistry is modeled by representing the tips of the Au contacts as two atomic clusters and treating the molecule-cluster complex as a single entity in an extended Huckel tight binding scheme. We model the tips using several different cluster geometries. An ideal lead is attached to each cluster, and the lead to lead transmission is calculated. The role of the molecule-cluster interaction in transport is analyzed by using single channel leads. We then extend the calculations to multi-channel leads that are a more realistic model of the tip's environment. Using the finite-voltage, finite temperature Landauer formula, we calculate the differential conductance for the different systems studied. The similarities and differences between the predictions of the present class of models and recent experimental work are discussed.
description: 23 pages, 11 figures, accepted PRB
Julio Cortázar (1914-1984) - Cronología de sus obras
Creators: name: Indeterminado
Publisher: name: NAKALA - https://nakala.fr (Huma-Num - CNRS)
publisherIdentifier: https://ror.org/04ces3204
publisherIdentifierScheme: ROR
Year: 2021
Subjects: Julio Cortázar
Bibliografía

description: Cronología de la publicación de las obras de Cortázar (1938-1994)
description: Source: Num.Ref. : JC-DY-CAR-02.049
description: Source: Localización del archivo: Centre de Recherches Latino-Américaines (CRLA–Archivos, ITEM UMR8132). MSHS - Bât. A5, 1er étage 5 rue Théodore Lefebvre - TSA21103. 86073 Poitiers cedex 9.
description: created: s.f.
Investigation of Semileptonic $B$ Meson Decay to P-Wave Charm Mesons
Creators: name: CLEO Collaboration
name: al, A. Anastassov et
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We have studied semileptonic $B$ meson decays with a P-wave charm meson in the final state using 3.29 x 10^6 B\bar{B} events collected by the CLEO~II detector at the Cornell Electron-positron Storage Ring. We find a value for the exclusive semileptonic product branching fraction: Br(B^- -> D_1^0 l^- \barν) x Br(D_1^0 -> D^{*+}π^-) = (0.373 \pm 0.085 \pm 0.052 \pm 0.024)% and an upper limit for Br(B^- -> D_2^{*0} l^- \barν) x Br(D_2^{*0} -> D^{*+}π^-) < 0.16%$ (90% C.L.). These results indicate that at least 20% of the total B^- semileptonic rate is unaccounted for by the observed exclusive decays, B^- -> D^0 l^- \barν, B^- -> D^{*0} l^- \barν, B^- -> D_1^0 l^- \barν, and B^- -> D_2^{*0} l^- \barν.
description: 10 page postscript file, postscript file also available through http://w4.lns.cornell.edu/public/CLNS
Additional file 5 of Genome analysis and comparative genomics of a Giardia intestinalis assemblage E isolate
Creators: name: Jerlström-Hultqvist, Jon
name: Franzén, Oscar
name: Ankarklev, Johan
name: Xu, Feifei
name: Nohýnková, Eva
name: Andersson, Jan O
name: Svärd, Staffan G
name: Andersson, Björn
Publisher: name: figshare
Year: 2021
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 5: Evolutionary analyses of a recently acquired Giardia gene. Evolutionary analyses of a recently acquired Giardia gene. (A) A maximum likelihood tree of an acetyl transferase gene (GLP15_874). Only representatives of the homologs showing the highest similarity to the Giardia sequences are included. The tree is based on 139 unambiguously aligned amino acid positions. (B) Alignment of conserved hypothetical proteins from G. intestinalis GS (GL50581_4454) and WB (GL50803_10192) to all detected bacterial homologs. A putative amino acid sequence from a G. intestinalis P15 pseudogene is included and the positions of frameshift and in-frame termination codons are indicated. (C) A maximum likelihood tree based on 137 unambiguously aligned amino acid positions in the alignment shown in (B). Accession numbers are shown in parentheses. Only bootstrap values >50% are shown in the trees. Unambiguously aligned regions were identified manually and removed. Representative homologs with high sequence similarity to these genes were selected using the BLAST-EXPLORER software. (PDF 337 KB)
Deformation of Optics for Photon Monte Carlo Simulations
Creators: name: Peterson, J. R.
name: Peng, E.
name: Burke, C. J.
name: Sembroski, G.
name: Cheng, J.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: FOS: Physical sciences

description: We develop a comprehensive approach to simulate the deformation of mirrors and lenses due to thermal and mechanical stresses that couples efficiently to photon-based optics simulations. This expands upon previous work where we demonstrated a comprehensive ab initio approach to simulate astronomical images using a photon Monte Carlo method. We apply elasticity theory and estimate thermal effects by adapting a three-dimensional numerical method. We also consider the effect of active optics control systems and active cooling systems in further correcting distortions in the optics. We validate the approach by showing convergence to analytic estimates, and then apply the methodology to the WIYN 3.5m telescope primary mirror. We demonstrate that changes in the soak temperature result in second order point spread function (PSF) defocusing, the gravitational sag and positioning errors result in highly structured PSF distortions, and large-scale thermal gradients result in an elliptical PSF distortion patterns. All three aspects of the environment are larger than the intrinsic optical aberrations of the design, and further exploration with a variety of telescopes should lead to detailed PSF size and shape, astrometric distortion, and field variation predictions. The simulation capabilities developed in this work is publicly available with the Photon Simulation (PhoSim) package.
description: Accepted for publication in ApJ; 14 pages, 19 figures
title: 02_1470
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/
Understanding the production of dual BEC with sympathetic cooling
Creators: name: Delannoy, G.
name: Murdoch, S. G.
name: Boyer, V.
name: Josse, V.
name: Bouyer, P.
name: Aspect, A.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Quantum Physics (quant-ph)
subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We show, both experimentally and theoretically, that sympathetic cooling of $^{87}$Rb atoms in the $|F=2,m_F=2>$ state by evaporatively cooled atoms in the $|F=1,m_F=-1>$ state can be precisely controlled to produce dual or single condensate in either state. We also study the thermalization rate between two species. Our model renders a quantitative account of the observed role of the overlap between the two clouds and points out that sympathetic cooling becomes inefficient when the masses are very different. Our calculation also yields an analytical expression of the thermalization rate for a single species.
description: 3 figures
Simulating the Collapse of a Thick Accretion Disk due to a Type I X-ray Burst from a Neutron Star
Creators: name: Fragile, P. Chris
name: Ballantyne, David R.
name: Maccarone, Thomas J.
name: Witry, Jason W. L.
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We use two-dimensional, general relativistic, viscous, radiation hydrodynamic simulations to study the impact of a Type I X-ray burst on a hot and geometrically thick accretion disk surrounding an unmagnetized, non-rotating neutron star. The disk is initially consistent with a system in its low/hard spectral state, and is subject to a burst which rises to a peak luminosity of $10^{38}$ erg s$^{-1}$ in $2.05$ s. At the peak of the burst, the temperature of the disk has dropped by more than three orders of magnitude and its scale height has gone down by more than one order of magnitude. The simulations show that these effects predominantly happen due to Compton cooling of the hot plasma, and clearly illustrate the potential cooling effects of bursts on accretion disk coronae. In addition, we demonstrate the presence of Poynting-Robertson drag, though it only enhances the mass accretion rate onto the neutron star by a factor of $\sim 3$-$4$ compared to a simulation with no burst. Simulations such as these are important for building a general understanding of the response of an accretion disk to an intense X-ray impulse, which, in turn, will be crucial for deciphering burst spectra. Detailed analysis of such spectra offers the potential to measure neutron star radii, and hence constrain the neutron star equation of state, but only if the contributions coming from the impacted disk and its associated corona can be understood.
description: 7 pages, 3 figures, to appear in ApJ Letters
Additional file 2 of Bone marrow lesions predict site-specific cartilage defect development and volume loss: a prospective study in older adults
Creators: name: Dore, Dawn
name: Martens, Ashleigh
name: Quinn, Stephen
name: Ding, Changhai
name: Winzenberg, Tania
name: Zhai, Guangju
name: Pelletier, Jean-Pierre
name: Martel-Pelletier, Johanne
name: Abram, François
name: Cicuttini, Flavia
name: Jones, Graeme
Publisher: name: figshare
Year: 2021
Subjects: subject: Physical Sciences not elsewhere classified
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Physiology
subject: Ecology
subject: Sociology
subject: FOS: Sociology
subject: Developmental Biology
subject: Infectious Diseases
subject: FOS: Health sciences

description: Authors’ original file for figure 2
(0,4) brane box models
Creators: name: Hanany, Amihay
name: Okazaki, Tadashi
Publisher: name: arXiv
Year: 2018
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Two-dimensional $\mathcal{N}=(0,4)$ supersymmetric quiver gauge theories are realized as D3-brane box configurations (two dimensional intervals) which are bounded by NS5-branes and intersect with D5-branes. The periodic brane configuration is mapped to D1-D5-D5$'$ brane system at orbifold singularity via T-duality. The matter content and interactions are encoded by the $\mathcal{N}=(0,4)$ quiver diagrams which are determined by the brane configurations. The Abelian gauge anomaly cancellation indicates the presence of Fermi multiplets at the NS-NS$'$ junction. We also discuss the brane construction of $\mathcal{N}=(0,4)$ supersymmetric boundary conditions in 3d $\mathcal{N}=4$ gauge theories involving two-dimensional boundary degrees of freedom that cancel gauge anomaly.
description: 42 pages, 23 figures
Negative electrostatic contribution to the bending rigidity of charged membranes and polyelectrolytes screened by multivalent counterions
Creators: name: Nguyen, T. T.
name: Rouzina, I.
name: Shklovskii, B. I.
Publisher: name: arXiv
Year: 1999
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Bending rigidity of a charged membrane or a charged polyelectrolyte screened by monovalent counterions is known to be enhanced by electrostatic effects. We show that in the case of screening by multivalent counterions the electrostatic effects reduce the bending rigidity. This inversion of the sign of the electrostatic contribution is related to the formation of two-dimensional strongly correlated liquids (SCL) of counterions at the charged surface due to strong lateral repulsion between them. When a membrane or a polyelectrolyte is bent, SCL is compressed on one side and stretched on the other so that thermodynamic properties of SCL contribute to the bending rigidity. Thermodynamic properties of SCL are similar to those of Wigner crystal and are anomalous in the sense that the pressure, compressibility and screening radius of SCL are negative. This brings about substantial negative correction to the bending rigidity. For the case of DNA this effect qualitatively agrees with experiment.
description: 8 pages, 2 figures
Quantile Regression Under Memory Constraint
Creators: name: Chen, Xi
name: Liu, Weidong
name: Zhang, Yichen
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: Econometrics (econ.EM)
subject: Machine Learning (stat.ML)
subject: FOS: Computer and information sciences
subject: FOS: Economics and business

description: This paper studies the inference problem in quantile regression (QR) for a large sample size $n$ but under a limited memory constraint, where the memory can only store a small batch of data of size $m$. A natural method is the naïve divide-and-conquer approach, which splits data into batches of size $m$, computes the local QR estimator for each batch, and then aggregates the estimators via averaging. However, this method only works when $n=o(m^2)$ and is computationally expensive. This paper proposes a computationally efficient method, which only requires an initial QR estimator on a small batch of data and then successively refines the estimator via multiple rounds of aggregations. Theoretically, as long as $n$ grows polynomially in $m$, we establish the asymptotic normality for the obtained estimator and show that our estimator with only a few rounds of aggregations achieves the same efficiency as the QR estimator computed on all the data. Moreover, our result allows the case that the dimensionality $p$ goes to infinity. The proposed method can also be applied to address the QR problem under distributed computing environment (e.g., in a large-scale sensor network) or for real-time streaming data.
Spin Dynamics and Orbital State in LaTiO_3
Creators: name: Keimer, B.
name: Casa, D.
name: Ivanov, A.
name: Lynn, J. W.
name: Zimmermann, M. v.
name: Hill, J. P.
name: Gibbs, D.
name: Taguchi, Y.
name: Tokura, Y.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: A neutron scattering study of the Mott-Hubbard insulator LaTiO$_{3}$ (T$_{\rm N}=132$ K) reveals a spin wave spectrum that is well described by a nearest-neighbor superexchange constant $J=15.5$ meV and a small Dzyaloshinskii-Moriya interaction ($D=1.1$ meV). The nearly isotropic spin wave spectrum is surprising in view of the absence of a static Jahn-Teller distortion that could quench the orbital angular momentum, and it may indicate strong orbital fluctuations. A resonant x-ray scattering study has uncovered no evidence of orbital order in LaTiO$_{3}$.
description: final version, Phys. Rev. Lett. 85, 3946 (2000)
Combined QCD analysis of e^+ e^- data at sqrt(s) = 14 to 172 GeV
Creators: name: Biebel, O.
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: A study of the energy dependence of event shape observables is presented. The strong coupling constant α_s has been determined from the mean values of six event shape observables. Power corrections, employed for the measurement of α_s, have been found to approximately account for hadronisation effects.
description: 6 pages, uses espcrc2.sty (included) and epsfig.sty, LaTeX, 8 .eps-files
Dynamical charge susceptibility in layered cuprates: the influence of screened inter-site Coulomb repulsion
Creators: name: Eremin, M.
name: Eremin, I.
name: Varlamov, S.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The analytical expression for dynamical charge susceptibility in layered cuprates has been derived in the frame of singlet-correlated band model beyond random-phase-approximation (RPA) scheme. Our calculations performed near optimal doping regime show that there is a peak in real part of the charge susceptibility $χ({\bf q},ω)$ at {\bf Q} = ($π$, $π$) at strong enough inter-site Coulomb repulsion. Together with the strong maximum in the Im $χ({\bf Q},ω)$ at 15 meV it confirms the formation of low-energetic plasmons or charge fluctuations. This provides a jsutification that these excitations are important and together with a spin flcutuations can contribute to the Cooper pairing in layered cuprates. Analysing the charge susceptibilitiy with respect to an instability we obtain a new plasmon branch, $ω_{\bf q}$, along the Brillouin Zone. In particular, we have found that it goes to zero near {\bf Q}$_{CDW} \approx (2π/3, 2π/3)$.
Soliton Interaction with External Forcing within the Korteweg-de Vries Equation
Creators: name: Ermakov, Andrei
name: Stepanyants, Yury
Publisher: name: arXiv
Year: 2018
Subjects: subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We revise the solutions of the forced Korteweg-de Vries equation describing a resonant interaction of a solitary wave with external pulse-type perturbations. In contrast to previous works where only the limiting cases of a very narrow forcing in comparison with the initial soliton or a very narrow soliton in comparison with the width of external perturbation were studied, we consider here an arbitrary relationship between the widths of soliton and external perturbation of a relatively small amplitude. In many particular cases, exact solutions of the forced Korteweg-de Vries equation can be obtained for the specific forcings of arbitrary amplitude. We use the earlier developed asymptotic method to derive an approximate set of equations up to the second-order on a small parameter characterising the amplitude of external force. The analysis of exact solutions of the derived equations is presented and illustrated graphically. It is shown that the theoretical outcomes obtained by asymptotic method are in a good agreement with the results of direct numerical modelling within the framework of forced Korteweg-de Vries equation.
description: 15 pages, 22 figures
Conductor and discriminant of Picard curves
Creators: name: Bouw, Irene I.
name: Koutsianas, Angelos
name: Sijsling, Jeroen
name: Wewers, Stefan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 14H10 (primary), 11G30, 14H25, 14H50 (secondary)

description: We describe normal forms and minimal models of Picard curves, discussing various arithmetic aspects of these. We determine all so-called special Picard curves over $\mathbb{Q}$ with good reduction outside 2 and 3, and use this to determine the smallest possible conductor a special Picard curve may have. We also collect a database of Picard curves over $\mathbb{Q}$ of small conductor.
description: 34 pages
Obstacle Avoidance Problem for Second Degree Nonholonomic Systems
Creators: name: Grushkovskaya, Victoria
name: Zuyev, Alexander
Publisher: name: arXiv
Year: 2018
Subjects: subject: Optimization and Control (math.OC)
subject: FOS: Mathematics
subject: 93D30, 93D15, 37J60, 70F25, 93B51

description: In this paper, we propose a new control design scheme for solving the obstacle avoidance problem for nonlinear driftless control-affine systems. The class of systems under consideration satisfies controllability conditions with iterated Lie brackets up to the second order. The time-varying control strategy is defined explicitly in terms of the gradient of a potential function. It is shown that the limit behavior of the closed-loop system is characterized by the set of critical points of the potential function. The proposed control design method can be used under rather general assumptions on potential functions, and particular applications with navigation functions are illustrated by numerical examples.
description: This is the author's accepted version of the paper to appear in: 2018 IEEE Conference on Decision and Control (CDC), (c) IEEE
Multiscale Finite-Difference-Diffusion-Monte-Carlo Method for Simulating Dendritic Solidification
Creators: name: Plapp, Mathis
name: Karma, Alain
Publisher: name: arXiv
Year: 2000
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We present a novel hybrid computational method to simulate accurately dendritic solidification in the low undercooling limit where the dendrite tip radius is one or more orders of magnitude smaller than the characteristic spatial scale of variation of the surrounding thermal or solutal diffusion field. The first key feature of this method is an efficient multiscale diffusion Monte-Carlo (DMC) algorithm which allows off-lattice random walkers to take longer and concomitantly rarer steps with increasing distance away from the solid-liquid interface. As a result, the computational cost of evolving the large scale diffusion field becomes insignificant when compared to that of calculating the interface evolution. The second key feature is that random walks are only permitted outside of a thin liquid layer surrounding the interface. Inside this layer and in the solid, the diffusion equation is solved using a standard finite-difference algorithm that is interfaced with the DMC algorithm using the local conservation law for the diffusing quantity. Here we combine this algorithm with a previously developed phase-field formulation of the interface dynamics and demonstrate that it can accurately simulate three-dimensional dendritic growth in a previously unreachable range of low undercoolings that is of direct experimental relevance.
description: RevTeX, 16 pages, 10 eps figures, submitted to J. Comp. Phys
Improved general-purpose five-point model for water: TIP5P/2018
Creators: name: Khalak, Yuriy
name: Baumeier, Bjoern
name: Karttunen, Mikko
Publisher: name: arXiv
Year: 2018
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: A new five point potential for liquid water, TIP5P/2018, is presented along with the techniques used to derive its charges from ab initio per-molecule electrostatic potentials in the liquid phase using the split charge equilibration (SQE) of Nistor et al. [J. Chem. Phys. 125, 094108 (2006)]. By taking the density and diffusion dependence on temperature as target properties, significant improvements to the behavior of isothermal compressibility were achieved along with improvements to other thermodynamic and rotational properties. While exhibiting a dipole moment close to ab initio values, TIP5P/2018 suffers from a too small quadrupole moment due to the charge assignment procedure and results in an overestimation of the dielectric constant.
Determinations of alpha_s using JADE data of e^+e^- Annihilations at sqrt{s} = 22 to 44 GeV
Creators: name: Fernandez, P. A. Movilla
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Data recorded by the JADE experiment at the PETRA e^+e^- collider were used to measure distributions of new event shape observables. The distributions were compared with resummed QCD calulations (O(alpha_s^2)+NLLA), and the strong coupling constant alpha_s was determined at \sqrt{s}= 22, 35 and 44 GeV. The results are in agreement with previous combined results of PETRA but have smaller uncertainties. Together with corresponding data from LEP, the energy dependence of alpha_s is significantly tested and is found to be in good agreement with the QCD expectation.
description: 6 pages, uses espcrc2.sty (included) and epsfig.sty, LaTeX2e, 8 .eps-files
Current partition: Nonequilibrium Green's function Approach
Creators: name: Wang, Baigeng
name: Wang, Jian
name: Guo, Hong
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We present a solution to the problem of AC current partition in a multi-probe mesoscopic conductor within the nonequilibrium Green's function formalism. This allows the derivation of dynamic conductance which is appropriate for nonequilibrium situations and which satisfies the current conservation and gauge invariance requirements. This formalism presents a significant generalization to previous theory: (i) there is no limit in the frequency, and (ii) it allows detailed treatments of interactions in the mesoscopic region. The formalism is applied to calculate dynamic conductance of tunneling structures with and without assuming wideband limit.
description: 4 pages, 3 figures
Localization and delocalization in dirty superconducting wires
Creators: name: Brouwer, P. W.
name: Furusaki, A.
name: Gruzberg, I. A.
name: Mudry, C.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We present Fokker-Planck equations that describe transport of heat and spin in dirty unconventional superconducting quantum wires. Four symmetry classes are distinguished, depending on the presence or absence of time-reversal and spin rotation invariance. In the absence of spin-rotation symmetry, heat transport is anomalous in that the mean conductance decays like $1/\sqrt{L}$ instead of exponentially fast for large enough length $L$ of the wire. The Fokker-Planck equations in the presence of time-reversal symmetry are solved exactly and the mean conductance for quasiparticle transport is calculated for the crossover from the diffusive to the localized regime.
description: 4 pages, RevTeX
Composite quasiparticles in strongly-correlated dipolar Fermi liquids
Creators: name: Seydi, Iran
name: Abedinpour, Saeed H.
name: Asgari, Reza
name: Tanatar, B.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Strong particle-plasmon interaction in electronic systems can lead to composite \emph{hole-plasmon} excitations. We investigate the emergence of similar composite quasiparticles in ultracold dipolar Fermi liquids originating from the long-range dipole-dipole interaction. We use the $G_0W$ technique with an effective interaction obtained from the static structure factor to calculate the quasiparticle properties and single-particle spectral function. We first demonstrate that within this formalism a very good agreement with the quantum Monte Carlo results could be achieved over a wide range of coupling strengths for the renormalization constant and effective mass. The composite \textit{quasiparticle-zero sound} excitations which are undamped at long wavelengths emerge at intermediate and strong couplings in the spectral function and should be detectable through the radio frequency spectroscopy of nonreactive polar molecules at high densities.
description: 9 pages, 7 figures, submitted
Energy-transfer rate in a double-quantum-well system due to Coulomb coupling
Creators: name: Senger, R. T.
name: Tanatar, B.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We study the energy-transfer rate for electrons in a double-quantum-well structure, where the layers are coupled through screened Coulomb interactions. The energy-transfer rate between the layers (similar to the Coulomb drag effect in which the momentum transfer rate is considered) is calculated as functions of electron densities, interlayer spacing, the temperature difference of the 2DEGs, and the electron drift velocity in the drive layer. We employ the full wave vector and frequency dependent random-phase approximation at finite temperature to describe the effective interlayer Coulomb interaction. We find that the collective modes (plasmons) of the system play a dominant role in the energy transfer rates. The contribution of optical phonons to the transfer rates through the phonon mediated Coulomb coupling mechanism has also been considered.
description: LaTex, 5 pages, 4 figures, uses grafik.sty (included)
Observation of Isolated High-ET Photons in Photoproduction at HERA
Creators: name: ZEUS Collaboration
Publisher: name: arXiv
Year: 1997
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: Events containing an isolated prompt photon with high transverse energy, together with a balancing jet, have been observed for the first time in photoproduction at HERA.The data were taken with the ZEUS detector, in a $γp$ centre of mass energy range 120--250 GeV. The fraction of the incoming photon energy participating in the production of the prompt photon and the jet, $x_γ$, shows a strong peak near unity, consistent with LO QCD Monte Carlo predictions. In the transverse energy and pseudorapidity range $5\le \eTg < 10$ GeV, $-0.7 \le η^γ< 0.8$, $\eTj\ge 5$ GeV, and $-1.5\le η^{jet}\le 1.8$, with $\xgO > 0.8,$ the measured cross section is $15.3 \pm 3.8 \pm 1.8 pb$, in good agreement with a recent NLO calculation.
description: 22 pages including 8 figures
Ferramenta da Terapia Cognitivo-Comportamental (TCC): Escala de Avaliação de Assertividade (RAS)
Creators: name: Brandl, Edenilson
Publisher: name: Zenodo
Year: 2024
Subjects: Ferramenta da Terapia Cognitivo-Comportamental (TCC)
Terapia Cognitivo-Comportamental (TCC)
Escala de Avaliação de Assertividade (RAS)

description: Definologia: A Escala de Avaliação de Assertividade (RAS) é uma ferramenta utilizada na Terapia Cognitivo-Comportamental (TCC) para mensurar o nível de assertividade do indivíduo, ou seja, sua habilidade em expressar seus pensamentos, sentimentos e desejos de maneira direta, clara e respeitosa, sem violar os direitos dos outros.
Spectra of ultrabroadband squeezed pulses and the finite-time Unruh-Davies effect
Creators: name: Guedes, T. L. M.
name: Kizmann, M.
name: Seletskiy, D. V.
name: Leitenstorfer, A.
name: Burkard, Guido
name: Moskalenko, A. S.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Quantum Physics (quant-ph)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study spectral properties of quantum radiation of ultimately short duration. In particular, we introduce a continuous multimode squeezing operator for the description of subcycle pulses of entangled photons generated by a coherent-field driving in a thin nonlinear crystal with second order susceptibility. We find the ultrabroadband spectra of the emitted quantum radiation perturbatively in the strength of the driving field. These spectra can be related to the spectra expected in an Unruh-Davies experiment with a finite time of acceleration. In the time domain, we describe the corresponding behavior of the normally ordered electric field variance.
description: 11 pages, 5 figures
Categorical semantics of metric spaces and continuous logic
Creators: name: Cho, Simon
Publisher: name: arXiv
Year: 2019
Subjects: subject: Category Theory (math.CT)
subject: Logic (math.LO)
subject: FOS: Mathematics
subject: 03G30 (Primary) 03B50, 18B30, 18F20, 54E35 (Secondary)

description: Using the category of metric spaces as a template, we develop a metric analogue of the categorical semantics of classical/intuitionistic logic, and show that the natural notion of predicate in this "continuous semantics" is equivalent to the a priori separate notion of predicate in continuous logic, a logic which is independently well-studied by model theorists and which finds various applications. We show this equivalence by exhibiting the real interval [0,1] in the category of metric spaces as a "continuous subobject classifier" giving a correspondence not only between the two notions of predicate, but also between the natural notion of quantification in the continuous semantics and the existing notion of quantification in continuous logic. Along the way, we formulate what it means for a given category to behave like the category of metric spaces, and afterwards show that any such category supports the aforementioned continuous semantics. As an application, we show that categories of presheaves of metric spaces are examples of such, and in fact even possess continuous subobject classifiers.
Microscopic calculations on Raman scattering from acousitc phonons confined in Si nanocrystals
Creators: name: Zi, J.
name: Zhang, K.
name: Xie, x.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: FOS: Physical sciences

description: Raman scattering from the acoustic phonons confied in si nanocrystals is investigated by a microscopic lattice-dynamical calculation. Polarized and depolarized spectra are found to be rather different, indicated from different acoustic phonons. The polarized scattering is more pronounced than the depolarized one. The calculated results are compared with the recent experimental data. The matrix effects are discussed.
description: 4 pages, 3 figures, RevTex; to appear in Phys. Rev. B, Aug. 15, 1998
3C 17: The BCG of a galaxy cluster at z=0.22
Creators: name: Madrid, Juan P.
name: Donzelli, Carlos J.
name: Rodriguez-Ardila, Alberto
name: Paggi, Alessandro
name: Massaro, Francesco
name: Schirmer, Mischa
Publisher: name: arXiv
Year: 2018
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: Gemini Multi Object Spectrograph medium-resolution spectra and photometric data of 39 objects in the field of the radio galaxy 3C 17 are presented. Based on the new data, a previously uncataloged cluster of galaxies is identified at a mean redshift of z=0.220 +/-0.003, a projected virial radius of 0.37 Mpc, and a velocity dispersion of sigma_v = 821 +/-171 km/s. The brightest member of this cluster is 3C 17 with M_r = -22.45 mag. The surface brightness profile of 3C 17 is best fit with two components (Exponential + Sersic) characteristic of brightest cluster galaxies. The spectrum of 3C 17 is dominated by broad emission lines Halpha + N[II] and Hbeta + [OIII]. Analysis of Chandra data shows extended emission around the cluster core that supports the existence of hot gas cospatial with 3C 17. The discovery of a cluster of galaxies around 3C 17 better explains the sharply bent morphology of the radio jet given that it propagates through a dense intracluster medium.
Virtual fracture clinics: be vigilant for the ligamentous elbow injury.
Creators: name: Robertson-Waters, Eve E
name: Cuthbert, Rory
name: Van Rensburg, Lee
Publisher: name: Oxford University Press (OUP)
Year: 2022
Subjects: 32 Biomedical and Clinical Sciences
3202 Clinical Sciences
Physical Injury - Accidents and Adverse Effects
Clinical Research
Injuries and accidents
3 Good Health and Well Being

description: The Covid-19 pandemic encouraged remote healthcare and led to dependency on virtual fracture clinics (VFC). VFC are orthopaedic consultant-led clinics where cases are reviewed virtually following referral by emergency department clinicians. Success is contingent on a comprehensive initial history and examination. This pathway has high patient satisfaction rates and cost-saving benefits. However, clinicians must be vigilant for high-energy mechanisms or examination findings suggestive of greater underlying injury. In this case, VFC missed a rare ipsilateral annular ligament injury in a 15-year old with an undisplaced radial neck fracture, following a fall from a horse. This led to radial head dislocation and delayed surgical repair. Untreated, radial head dislocations lead to pain and reduced range of movement. Despite the rarity of this injury pattern, face-to-face orthopaedic examination would have raised concern for significant ligamentous injury. A high-energy mechanism of injury mandates face-to-face senior orthopaedic review to avoid missing serious concomitant injury.