cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Two new accreting, pulsating white dwarfs: SDSS J1457+51 and BW Sculptoris
Creators: name: Uthas, Helena
name: Patterson, Joseph
name: Kemp, Jonathan
name: Knigge, Christian
name: Monard, Berto
name: Rea, Robert
name: Bolt, Greg
name: McCormick, Jennie
name: Christie, Grant
name: Retter, Alon
name: Liu, Alex
Publisher: name: arXiv
Year: 2011
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We report the discovery of rapid periodic signals in the light curves of two cataclysmic variables with prominent white-dwarf components in their spectra, SDSS J1457+51 and BW Sculptoris. These stars therefore appear to be new members of the GW Lib class of variable star, in which the fast periodic (and non-commensurate with the orbital period) signals are believed to arise from non-radial pulsations in the underlying white dwarf. The power spectra of both stars show complex signals with primary periods near 10 and 20 minutes. These signals change in frequency by a few percent on a timescale of weeks or less, and probably contain an internal fine structure unresolved by our observations. We also detect double-humped waves signifying the underlying orbital periods, near 78 minutes for both stars. In addition, BW Scl shows a transient but powerful signal with a period near 87 minutes, a quiescent superhump. The 11 % excess over the orbital period is difficult to understand, and may arise from an eccentric instability near the 2:1 resonance in the accretion disc.
Régulateurs modulaires explicites via la méthode de Rogers-Zudilin
Creators: name: Brunault, François
Publisher: name: arXiv
Year: 2016
Subjects: subject: Number Theory (math.NT)
subject: FOS: Mathematics
subject: 19F27

description: We compute the regulator of Beilinson-Deninger-Scholl elements in terms of special values of L-functions of modular forms, using the Rogers-Zudilin method.
description: 30 pages, in French
ODIN - a general INDO programme and its application to some transition metal halides
Creators: name: Geer, Joseph A.
Publisher: name: University of Calgary
Year: 1973
Subjects: subject: QD 455.3 E4 G44 1973
subject: Electronic data processing - Chemistry, Physical and theoretical
subject: Transition metal halides
subject: Molecular orbitals
subject: Overlap integral

description: Bibliography: p. 107-110.
Simultaneous B'V'R' Monitoring of BL Lacertae Object S5~0716+714 and Detection of Inter-Band Time Delay
Creators: name: Wu, Jianghua
name: Boettcher, Markus
name: Zhou, Xu
name: He, Xiangtao
name: Ma, Jun
name: Jiang, Zhaoji
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: FOS: Physical sciences

description: We present the results of our optical monitoring of the BL Lac object S5 0716+714 on seven nights in 2006 December. The monitoring was carried out simultaneously at three optical wavelengths with a novel photometric system. The object did not show large-amplitude internight variations during this period. Intranight variations were observed on four nights and probably on one more. Strong bluer-when-brighter chromatism was detected on both intranight and internight timescales. The intranight variation amplitude decreases in the wavelength sequence of B', R', and V'. Cross correlation analyses revealed that the variability at the $B'$ and $V'$ bands lead that at the $R'$ band by about 30 minutes on one night.
description: 31 pages, 12 figures, accepted by the Astronomical Journal
A new model for heating of Solar North Polar Coronal Hole
Creators: name: Devlen, E.
name: Çamurdan, D. Zengin
name: Yardımcı, M.
name: Pekünlü, E. R.
Publisher: name: arXiv
Year: 2015
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: This paper presents a new model of North Polar Coronal Hole (NPCH) to study dissipation/propagation of MHD waves. We investigate the effects of the isotropic viscosity and heat conduction on the propagation characteristics of the MHD waves in NPCH. We first model NPCH by considering the differences in radial as well as in the direction perpendicular to the line of sight (\textit{los}) in temperature, particle number density and non-thermal velocities between plumes and interplume lanes for the specific case of \ion{O}{VI} ions. This model includes parallel and perpendicular (to the magnetic field) heat conduction and viscous dissipation. Next, we derive the dispersion relations for the MHD waves in the case of absence and presence of parallel heat conduction. In the case of absence of parallel heat conduction, we find that MHD wave dissipation strongly depends on the viscosity for modified acoustic and Alfven waves. The energy flux density of acoustic waves varies between $10^{4.7}$ and $10^7 \,erg\,cm^{-2}\,s^{-1}$ while the energy flux density of Alfven waves turned out to be between $ 10^6-10^{8.6} \,erg\,cm^{-2}\,s^{-1}$. But, solutions of the magnetoacustic waves show that the parallel heat conduction introduce anomalous dispersion to the NPCH plasma wherein the group velocity of waves exceeds the speed of light in vacuum. Our results suggests all these waves may provide significant source for the observed preferential accelerating and heating of \ion{O}{VI} ions, in turn coronal plasma heating and an extra accelerating agent for fast solar wind in NPCH.
description: 17 pages, 11 figures, Submitted to MNRAS
The comparison between pulmonary rehabilitation with music therapy and pulmonary rehabilitation alone on respiratory drive, cortisol level and asthma control in patients hospitalized with asthma exacerbation
Creators: name: Śliwka, Agnieszka
name: Kaszuba, Marek
name: Piliński, Rafal
name: Pieniążek, Magdalena
name: Batkiewicz, Magdalena
name: Marciniak, Karolina
name: Bochenek, Grażyna
name: Nowobilski, Roman
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: Developmental Biology
subject: Science Policy
subject: 111714 Mental Health
subject: FOS: Health sciences

description: Much emphasis is being placed on the role of music therapy as an easy-to-use, noninvasive and relatively cheap method of asthma treatment. The objective of this interventional double-blinded randomized controlled trial was to assess whether music therapy, as a complementary modality to pulmonary rehabilitation, can help to improve respiratory drive, asthma control and quality of life in patients with asthma exacerbation. Hospitalized patients with asthma exacerbation enrolled in the study were randomly assigned to experimental (music therapy) or control (popular science program) group. Both groups during hospitalization received standard pharmacotherapy accompanied by respiratory physiotherapy. Respiratory drive, asthma control, quality of life and serum cortisol in all participants were assessed at the beginning and at the end of their hospitalizations. The experimental group consisted of 39 asthmatics and 34 subjects with asthma were assigned to the control group. During the hospitalization, the levels of the inspiratory occlusion pressure for the first 0.1 s of inspiration (P0.1) decreased (p = 0.004) and the maximum P0.1 increased (p = 0.041) only in the experimental group. The serum cortisol level decreased in both groups (p = 0.001). The changes in asthma control and quality of life did not reach significant levels in either subject group. Passive music therapy and its effects on the mental state of patients seem to improve the efficiency of the respiratory system. The results of this experimental study demonstrate that a complementary music therapy has beneficial effects on the treatment of asthma exacerbations in adults.
Multi-messenger signals of long-term core-collapse supernova simulations : synergetic observation strategies
Creators: name: Nakamura, Ko
name: Horiuchi, Shunsaku
name: Tanaka, Masaomi
name: Hayama, Kazuhiro
name: Takiwaki, Tomoya
name: Kotake, Kei
Publisher: name: arXiv
Year: 2016
Subjects: subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Experiment (hep-ex)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: The next Galactic supernova is expected to bring great opportunities for the direct detection of gravitational waves (GW), full flavor neutrinos, and multi-wavelength photons. To maximize the science return from such a rare event, it is essential to have established classes of possible situations and preparations for appropriate observations. To this end, we use a long-term numerical simulation of the core-collapse supernova (CCSN) of a 17 solar-mass red supergiant progenitor to self-consistently model the multi-messenger signals expected in GW, neutrino, and electromagnetic messengers. This supernova model takes into account the formation and evolution of a protoneutron star, neutrino-matter interaction, and neutrino transport, all within a two-dimensional shock hydrodynamics simulation. With this, we separately discuss three situations: (i) a CCSN at the Galactic Center, (ii) an extremely nearby CCSN within hundreds of parsecs, and (iii) a CCSN in nearby galaxies within several Mpc. These distance regimes necessitate different strategies for synergistic observations. In a Galactic CCSN, neutrinos provide strategic timing and pointing information. We explore how these in turn deliver an improvement in the sensitivity of GW analyses and help to guarantee observations of early electromagnetic signals. To facilitate the detection of multi-messenger signals of CCSNe in extremely nearby and extragalactic distances, we compile a list of nearby red supergiant candidates and a list of nearby galaxies with their expected CCSN rates. By exploring the sequential multi-messenger signals of a nearby CCSN, we discuss preparations for maximizing successful studies of such an unprecedented stirring event.
description: A typo in eq. (5) corrected, the online material (lists of nearby RSG candidates and local galaxies) is available from http://th.nao.ac.jp/MEMBER/nakamura/2016multi/index.html
Outcomes from a pilot patient-centered hospital-to-home transition program for children hospitalized with asthma
Creators: name: Parikh, Kavita
name: Richmond, Miller
name: Lee, Michael
name: Fu, Linda
name: McCarter, Robert
name: Hinds, Pamela
name: Teach, Stephen J.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: To evaluate a multi-component hospital-to-home (H2H) transition program for children hospitalized with an asthma exacerbation. A pilot prospective randomized clinical trial of guideline-based asthma care with and without a patient-centered multi-component H2H program among children enrolled in K-8th grade on Medicaid hospitalized for an asthma exacerbation. H2H program includes 5 components: medications in-hand at discharge, school-based asthma therapy (SBAT) for controller medications, referral for home trigger assessments, communication with the primary care provider (PCP), and patient navigator support. Primary outcomes included feasibility and acceptability. Secondary outcomes included healthcare utilization, asthma morbidity, and caregiver quality of life. A total of 32 children were enrolled and randomized. Feasibility outcomes in the intervention group included: medications in-hand at discharge (100%); SBAT for controller medication initiated (100%); home visit referrals made (100%) and home visits completed within 4 weeks of discharge (44%); PCP communication (100%); patient navigator communication at 3 days (81.3%) and 14 days (46.7%). Acceptability outcomes in the intervention group included: 87.5% of families continued SBAT, and 87.5% of families reported it was extremely helpful to have the home visit referral. Adjusting for baseline differences in age, asthma severity and control, there was no significant difference in healthcare utilization outcomes. These pilot data suggest that comprehensive care coordination initiated during the inpatient stay is feasible and acceptable. A larger trial is justified to determine if the intervention may reduce healthcare utilization for urban, minority children with asthma.
Numerical simulation of three-phase coning in petroleum reservoirs
Creators: name: Settari, Antonin
Publisher: name: University of Calgary
Year: 1973
Subjects: subject: TA 357 S46 1973
subject: Fluid dynamics
subject: Oil reservoir engineering

description: Bibliography: p. 194-202.
description: A study of computer simulation of three-phase flow in petroleum reservoirs with particular reference to coning problems is the topic of the present investigation. The mathematical formulation of flow equations is treated in detail and the implications of physically correct as opposed to conventional boundary conditions are clarified. The proper construction of finite difference approximations is discussed. A new finite difference formulation of the boundary conditions is developed, which satisfies the outlet effect and the condition of compatibility between the flow in the reservoir and in the wellbore. Several mathematical properties of the system of difference equations are proved and the methods for solving the resulting system of algebraic equations are surveyed. The investigation of various methods for handling the nonlinearities shows that Newton's method can be used to obtain a fully implicit solution in few iterations. The stability and truncation errors of Newton's method are compared with the linearized and semi-implicit method on test problems . A new method is proposed for handling the nonlinearity due to accumulation terms. The numerical coning model developed on the basis of these theoretical investigations is highly stable, simulates correctly the boundary effects and has a small time-step sensitivity. These features are demonstrated on test problems of two-phase coning and three-phase coning with gas percolation. The investigation of the fea sibility of Newton's iteration shows that best results are obtained if only one iteration per time step is performed and smaller time steps are selected, instead of performing several Newton's iterations with extremely large time steps. The numerical model is used to study the influence of some variables on coning, including capillary pressure and wettability, and to investigate some possibilities of controlling coning.
Women's Working Lives Survey, Northern Ireland, 1990
Creators: name: Kremer, J.
name: Montgomery, P.
Publisher: name: UK Data Service
Year: 2000

description: This survey was designed to identify the various factors which determine whether or not women participate in paid work and how the unpaid work which women carry out in the home influences their lifetime involvement in the labour market. In addition it was intended that the survey would document the type of paid work women have done and currently do, and women's attitudes and experiences of employment.
 For the second edition of the dataset, released in March 2000, data and documentation from section C of the survey, which details the working histories of the women interviewed, were added. Please see the read file and other documentation for further details.
Compressibility of an Ultracold Fermi Gas with Repulsive Interactions
Creators: name: Lee, Ye-Ryoung
name: Heo, Myoung-Sun
name: Choi, Jae-Hoon
name: Wang, Tout T.
name: Christensen, Caleb A.
name: Rvachov, Timur M.
name: Ketterle, Wolfgang
Publisher: name: arXiv
Year: 2012
Subjects: subject: Quantum Gases (cond-mat.quant-gas)
subject: FOS: Physical sciences

description: Fermi gases with repulsive interactions are characterized by measuring their compressibility as a function of interaction strength. The compressibility is obtained from in-trap density distributions monitored by phase contrast imaging. For interaction parameters k_F a > 0.25 fast decay of the gas prevents the observation of equilibrium profiles. For smaller interaction parameters, the results are adequately described by first-order perturbation theory. A novel phase contrast imaging method compensates for dispersive distortions of the images.
description: 7 pages, 5 figures
Political Perceptions, Political Education and Voting among Young People, 1986-1988
Creators: name: Hands, G.
name: Denver, D. T.
Publisher: name: UK Data Service
Year: 1993

description: The main aims of the project are:
 1. To assess the impact of formal education in politics on the political attitudes and behaviour of young people, and more generally to examine the role of formal education in politics in political socialisation;
 2. To explore the voting behaviour of young people in terms of three competing models of party choice - the party identification, issue voting and `interactionist' or principle voting models - and to use the survey results as a basis for clarifying and assessing the models.
 The project was designed to be carried out at the time of the general election of June 1987 in order to assess young people's political attitudes and voting behaviour in that context.
Measurement of Beauty Photoproduction near Threshold using Di-electron Events with the H1 Detector at HERA
Creators: name: H1 Collaboration
Publisher: name: arXiv
Year: 2012
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: The cross section for ep -> e b\bar{b} X in photoproduction is measured with the H1 detector at the ep-collider HERA. The decay channel b\bar{b} -> ee X' is selected by identifying the semi-electronic decays of the b-quarks. The total production cross section is measured in the kinematic range given by the photon virtuality Q^2 <= 1 GeV^2, the inelasticity 0.05 <= y <= 0.65 and the pseudorapidity of the b-quarks |eta(b)|,|eta(\bar{b})| <= 2. The differential production cross section is measured as a function of the average transverse momentum of the beauty quarks down to the threshold. The results are compared to next-to-leading-order QCD predictions.
description: 34 pages, 6 tables, 12 figures
The effect of a Durbin-Watson pretest on confidence intervals in regression
Creators: name: Kabaila, Paul
name: Alhelli, Samer
name: Farchione, Davide
name: Bragg, Nathan
Publisher: name: arXiv
Year: 2018
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: Consider a linear regression model and suppose that our aim is to find a confidence interval for a specified linear combination of the regression parameters. In practice, it is common to perform a Durbin-Watson pretest of the null hypothesis of zero first-order autocorrelation of the random errors against the alternative hypothesis of positive first-order autocorrelation. If this null hypothesis is accepted then the confidence interval centred on the Ordinary Least Squares estimator is used; otherwise the confidence interval centred on the Feasible Generalized Least Squares estimator is used. We provide new tools for the computation, for any given design matrix and parameter of interest, of graphs of the coverage probability functions of the confidence interval resulting from this two-stage procedure and the confidence interval that is always centred on the Feasible Generalized Least Squares estimator. These graphs are used to choose the better confidence interval, prior to any examination of the observed response vector.
WKB eigenmode construction for analytic Toeplitz operators
Creators: name: Deleporte, Alix
Publisher: name: arXiv
Year: 2019
Subjects: subject: Analysis of PDEs (math.AP)
subject: Mathematical Physics (math-ph)
subject: Spectral Theory (math.SP)
subject: FOS: Mathematics
subject: FOS: Physical sciences

description: We provide almost eigenfunctions for Toeplitz operators with real-analytic symbols, at the bottom of non-degenerate wells. These almost eigenfunctions follow the WKB ansatz; the error is O(exp(--cN)), where c > 0 and N $\rightarrow$ +$\infty$ is the inverse semiclassical parameter.
Cold Comfort : A National Survey of Elderly People in Cold Weather, 1991
Creators: name: Tinker, A.
name: Askham, J.
name: Salvage, A.
Publisher: name: UK Data Service
Year: 1993

description: To establish what proportion of elderly people in Britain:
 i) experience low day and/or night-time indoor temperatures
 ii) experience low core body temperatures
 iii) feel cold at home during the winter.
 Also to establish factors associated with body and room temperatures/thermal experience, and to compare the results with those obtained in a similar study undertaken in 1972.
Non-perturbative dynamics and charge fluctuations in effective chiral models
Creators: name: Skokov, V.
name: Friman, B.
name: Redlich, K.
Publisher: name: arXiv
Year: 2011
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss the properties of fluctuations of the electric charge in the vicinity of the chiral crossover transition within effective chiral models at finite temperature and vanishing net baryon density. The calculation includes non-perturbative dynamics implemented within the functional renormalization group approach. We study the temperature dependence of the electric charge susceptibilities in the linear sigma model and explore the role of quantum statistics. Within the Polyakov loop extended quark-meson model, we study the influence of the coupling of quarks to mesons and to an effective gluon field on charge fluctuations. We find a clear signal for the chiral crossover transition in the fluctuations of the electric charge. Accordingly, we stress the role of higher order cumulants as probes of criticality related to the restoration of chiral symmetry and deconfinement.
description: 12 pages, 3 figures
Efficient simulation of multidimensional phonon transport using energy-based variance-reduced Monte Carlo formulations
Creators: name: Peraud, Jean-Philippe
name: Hadjiconstantinou, Nicolas
Publisher: name: arXiv
Year: 2011
Subjects: subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: We present a new Monte Carlo method for obtaining solutions of the Boltzmann equation for describing phonon transport in micro and nanoscale devices. The proposed method can resolve arbitrarily small signals (e.g. temperature differences) at small constant cost and thus represents a considerable improvement compared to traditional Monte Carlo methods whose cost increases quadratically with decreasing signal. This is achieved via a control-variate variance reduction formulation in which the stochastic particle description only solves for the deviation from a nearby equilibrium, while the latter is described analytically. We also show that simulating an energy-based Boltzmann equation results in an algorithm that lends itself naturally to exact energy conservation thereby considerably improving the simulation fidelity. Simulations using the proposed method are used to investigate the effect of porosity on the effective thermal conductivity of silicon. We also present simulations of a recently developed thermal conductivity spectroscopy process. The latter simulations demonstrate how the computational gains introduced by the proposed method enable the simulation of otherwise intractable multiscale phenomena.
Effect of pulmonary rehabilitation in an allergen safe outdoor environment on children and adolescents with mild to moderate persistent allergic asthma
Creators: name: Lipej, M.
name: Plavec, D.
name: Živković, J.
name: Malev, O.
name: Nogalo, B.
name: Magdić, R.
name: Jurjević, R. Lulić
name: Turkalj, M.
Publisher: name: Taylor & Francis
Year: 2021
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Plant Biology

description: Environmental interactions are very complex in childhood asthma, and we hypothesized that even a short-term exposure to an allergy safe outdoor environment (AllSOE) combined with pulmonary rehabilitation program (PRP) could exert significant beneficial effects. Our aim was to test the effects of 2-week PRP provided in an AllSOE in children with mild to moderate asthma. 110 children (aged 7.5–17 years, 46% girls), with partially or totally controlled asthma, attended the PRP at the Island of Lošinj (Croatia) supervised by a multidisciplinary team (pediatric pulmonologist, sports medicine specialist, physiotherapist and kinesiologist). Each child had an adjusted intensity of physical activity with at least 2 h of exercise per day. Body height and weight, spirometry, fraction of exhaled nitric oxide (FeNO), running distance during free running test (FRT) and the decline in lung function after FRT (exercise-induced bronchoconstriction- EIB) were measured at baseline and after PRP. A significant improvement in running distance (from 903 ± 272 m to 968 ± 289 m; p p p Two weeks of PRP in an AllSOE significantly improved exercise capacity and reduced airway inflammation and airway hyperreactivity showing that even a short-term PRP within a proper environment could be effective and affordable management strategy for children and adolescents with mild to moderate asthma.
Computation of the expected value of a function of a chi-distributed random variable
Creators: name: Kabaila, Paul
name: Ranathunga, Nishika
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computation (stat.CO)
subject: FOS: Computer and information sciences

description: We consider the problem of numerically evaluating the expected value of a smooth bounded function of a chi-distributed random variable, divided by the square root of the number of degrees of freedom. This problem arises in the contexts of simultaneous inference, the selection and ranking of populations and in the evaluation of multivariate t probabilities. It also arises in the assessment of the coverage probability and expected volume properties of the some non-standard confidence regions. We use a transformation put forward by Mori, followed by the application of the trapezoidal rule. This rule has the remarkable property that, for suitable integrands, it is exponentially convergent. We use it to create a nested sequence of quadrature rules, for the estimation of the approximation error, so that previous evaluations of the integrand are not wasted. The application of the trapezoidal rule requires the approximation of an infinite sum by a finite sum. We provide a new easily computed upper bound on the error of this approximation. Our overall conclusion is that this method is a very suitable candidate for the computation of the coverage and expected volume properties of non-standard confidence regions.
Micromagnetic simulations of sweep-rate dependent coercivity in perpendicular recording media
Creators: name: Plumer, M. L.
name: Leblanc, M. D.
name: Whitehead, J. P.
name: van Ek, J.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: The results of micromagnetic simulations are presented which examine the impact of thermal fluctuations on sweep rate dependent coercivities of both single-layer and exchange-coupled-composite (ECC) perpendicular magnetic recording media. M-H loops are calculated at four temperatures and sweep rates spanning five decades with fields applied normal to the plane and at 45 degrees. The impact of interactions between grains is evaluated. The results indicate a significantly weaker sweep-rate dependence for ECC media suggesting more robustness to long-term thermal effects. Fitting the modeled results to Sharrock-like scaling proposed by Feng and Visscher [J. Appl. Phys. 95, 7043 (2004)] is successful only in the case of single-layer media with the field normal to the plane.
description: 7 pages, 14 figures
Price impact asymmetry of institutional trading in Chinese stock market
Creators: name: Ren, Fei
name: Zhong, Li-Xin
Publisher: name: arXiv
Year: 2011
Subjects: subject: Trading and Market Microstructure (q-fin.TR)
subject: FOS: Economics and business

description: The asymmetric price impact between the institutional purchases and sales of 32 liquid stocks in Chinese stock markets in year 2003 is carefully studied. We analyze the price impact in both drawup and drawdown trends with consecutive positive and negative daily price changes, and test the dependence of the price impact asymmetry on the market condition. For most of the stocks institutional sales have a larger price impact than institutional purchases, and larger impact of institutional purchases only exists in few stocks with primarily increasing tendencies. We further study the mean return of trades surrounding institutional transactions, and find the asymmetric behavior also exists before and after institutional transactions. A new variable is proposed to investigate the order book structure, and it can partially explain the price impact of institutional transactions. A linear regression for the price impact of institutional transactions further confirms our finding that institutional sales primarily have a larger price impact than institutional purchases in the bearish year 2003.
description: 14 pages, 3 figures
Curriculum semi-supervised segmentation
Creators: name: Kervadec, Hoel
name: Dolz, Jose
name: Granger, Eric
name: Ayed, Ismail Ben
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: This study investigates a curriculum-style strategy for semi-supervised CNN segmentation, which devises a regression network to learn image-level information such as the size of a target region. These regressions are used to effectively regularize the segmentation network, constraining softmax predictions of the unlabeled images to match the inferred label distributions. Our framework is based on inequality constraints that tolerate uncertainties with inferred knowledge, e.g., regressed region size, and can be employed for a large variety of region attributes. We evaluated our proposed strategy for left ventricle segmentation in magnetic resonance images (MRI), and compared it to standard proposal-based semi-supervision strategies. Our strategy leverages unlabeled data in more efficiently, and achieves very competitive results, approaching the performance of full-supervision.
description: Accepted as paper as MICCAI 2O19
Quantum simulation of an extra dimension
Creators: name: Boada, O.
name: Celi, A.
name: Lewenstein, M.
name: Latorre, J. I.
Publisher: name: arXiv
Year: 2011
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Other Condensed Matter (cond-mat.other)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We present a general strategy to simulate a D+1-dimensional quantum system using a D-dimensional one. We analyze in detail a feasible implementation of our scheme using optical lattice technology. The simplest non-trivial realization of a fourth dimension corresponds to the creation of a bivolume geometry. We also propose single- and many-particle experimental signatures to detect the effects of the extra dimension.
description: 5 pages, 3 figures, revtex style;v2 minor changes, references added
Effect of pulmonary rehabilitation in an allergen safe outdoor environment on children and adolescents with mild to moderate persistent allergic asthma
Creators: name: Lipej, M.
name: Plavec, D.
name: Živković, J.
name: Malev, O.
name: Nogalo, B.
name: Magdić, R.
name: Jurjević, R. Lulić
name: Turkalj, M.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Biochemistry
subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Neuroscience
subject: Physiology
subject: Biotechnology
subject: 110309 Infectious Diseases
subject: FOS: Health sciences

description: Background: Environmental interactions are very complex in childhood asthma, and we hypothesized that even a short-term exposure to an allergy safe outdoor environment (AllSOE) combined with pulmonary rehabilitation program (PRP) could exert significant beneficial effects. Our aim was to test the effects of 2-week PRP provided in an AllSOE in children with mild to moderate asthma. Methods: 110 children (aged 7.5–17 years, 46% girls), with partially or totally controlled asthma, attended the PRP at the Island of Lošinj (Croatia) supervised by a multidisciplinary team (pediatric pulmonologist, sports medicine specialist, physiotherapist and kinesiologist). Each child had an adjusted intensity of physical activity with at least 2 h of exercise per day. Body height and weight, spirometry, fraction of exhaled nitric oxide (FeNO), running distance during free running test (FRT) and the decline in lung function after FRT (exercise-induced bronchoconstriction- EIB) were measured at baseline and after PRP. Results: A significant improvement in running distance (from 903 ± 272 m to 968 ± 289 m; p p p Conclusion: Two weeks of PRP in an AllSOE significantly improved exercise capacity and reduced airway inflammation and airway hyperreactivity showing that even a short-term PRP within a proper environment could be effective and affordable management strategy for children and adolescents with mild to moderate asthma.
Die Publikationen von Giuseppe (Josef) Passalacqua, dem ersten Direktor des Ägyptischen Museums Berlin, und ihre Stellung in der zeitgenössischen Wissenschaft und Gesellschaft
Creators: name: Moje, Jan
Publisher: name: Aegyptiaca. Journal of the History of Reception of Ancient Egypt
Year: 2020

description: Aegyptiaca. Journal of the History of Reception of Ancient Egypt, Nr. 5 (2020): Aegyptiaca. Journal of the History of Reception of Ancient Egypt
Neutrino Capture on $^{13}$C
Creators: name: Suzuki, T.
name: Balantekin, A. B.
name: Kajino, T.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We present neutrino cross sections on $^{13}$C. The charged-current cross sections leading to various states in the daughter $^{13}N$ and the neutral-current cross sections leading to various states in the daughter $^{13}$C are given. We also provide simple polynomial fits to those cross sections for quick estimates of the reaction rates. We briefly discuss possible implications for the current and future scintillator-based experiments.
description: 5 figures
Outcomes from a pilot patient-centered hospital-to-home transition program for children hospitalized with asthma
Creators: name: Parikh, Kavita
name: Richmond, Miller
name: Lee, Michael
name: Fu, Linda
name: McCarter, Robert
name: Hinds, Pamela
name: Teach, Stephen J.
Publisher: name: Taylor & Francis
Year: 2020
Subjects: subject: Medicine
subject: Physiology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: Science Policy
subject: 110309 Infectious Diseases
subject: FOS: Health sciences
subject: Computational Biology

description: To evaluate a multi-component hospital-to-home (H2H) transition program for children hospitalized with an asthma exacerbation. A pilot prospective randomized clinical trial of guideline-based asthma care with and without a patient-centered multi-component H2H program among children enrolled in K-8th grade on Medicaid hospitalized for an asthma exacerbation. H2H program includes 5 components: medications in-hand at discharge, school-based asthma therapy (SBAT) for controller medications, referral for home trigger assessments, communication with the primary care provider (PCP), and patient navigator support. Primary outcomes included feasibility and acceptability. Secondary outcomes included healthcare utilization, asthma morbidity, and caregiver quality of life. A total of 32 children were enrolled and randomized. Feasibility outcomes in the intervention group included: medications in-hand at discharge (100%); SBAT for controller medication initiated (100%); home visit referrals made (100%) and home visits completed within 4 weeks of discharge (44%); PCP communication (100%); patient navigator communication at 3 days (81.3%) and 14 days (46.7%). Acceptability outcomes in the intervention group included: 87.5% of families continued SBAT, and 87.5% of families reported it was extremely helpful to have the home visit referral. Adjusting for baseline differences in age, asthma severity and control, there was no significant difference in healthcare utilization outcomes. These pilot data suggest that comprehensive care coordination initiated during the inpatient stay is feasible and acceptable. A larger trial is justified to determine if the intervention may reduce healthcare utilization for urban, minority children with asthma.
Finite sample properties of the Buckland-Burnham-Augustin confidence interval centered on a model averaged estimator
Creators: name: Kabaila, Paul
name: Welsh, Alan H.
name: Wijethunga, Christeen
Publisher: name: arXiv
Year: 2019
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: We consider the confidence interval centered on a frequentist model averaged estimator that was proposed by Buckland, Burnham & Augustin (1997). In the context of a simple testbed situation involving two linear regression models, we derive exact expressions for the confidence interval and then for the coverage and scaled expected length of the confidence interval. We use these measures to explore the exact finite sample performance of the Buckland-Burnham-Augustin confidence interval. We also explore the limiting asymptotic case (as the residual degrees of freedom increases) and compare our results for this case to those obtained for the asymptotic coverage of the confidence interval by Hjort & Claeskens (2003).
description: Journal of Statistical Planning and Inference (2019)
A Novel Approach to Fast Image Filtering Algorithm of Infrared Images based on Intro Sort Algorithm
Creators: name: Gupta, Kapil Kumar
name: Beg, Rizwan
name: Niranjan, Jitendra Kumar
Publisher: name: arXiv
Year: 2012
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: FOS: Computer and information sciences

description: In this study we investigate the fast image filtering algorithm based on Intro sort algorithm and fast noise reduction of infrared images. Main feature of the proposed approach is that no prior knowledge of noise required. It is developed based on Stefan- Boltzmann law and the Fourier law. We also investigate the fast noise reduction approach that has advantage of less computation load. In addition, it can retain edges, details, text information even if the size of the window increases. Intro sort algorithm begins with Quick sort and switches to heap sort when the recursion depth exceeds a level based on the number of elements being sorted. This approach has the advantage of fast noise reduction by reducing the comparison time. It also significantly speed up the noise reduction process and can apply to real-time image processing. This approach will extend the Infrared images applications for medicine and video conferencing.
description: 7 pages. arXiv admin note: substantial text with articles by Chih-Lung Lin et al.
Abelian-by-cyclic Moufang loops
Creators: name: Grishkov, Alexander N.
name: Zavarnitsine, Andrei V.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Group Theory (math.GR)
subject: FOS: Mathematics

description: We use groups with triality to construct a series of nonassociative Moufang loops. Certain members of this series contain an abelian normal subloop with the corresponding quotient being a cyclic group. In particular, we give a new series of examples of finite abelian-by-cyclic Moufang loops. The previously known [A. Rajah, J. Alg., 235 (2001), 66-93] loops of this type of odd order 3q^3, with prime q congruent to 1 mod 3, are particular cases of our series. Some of the examples are shown to be embeddable into a Cayley algebra.
description: Preprint submitted to Comm. Alg
A reaction network scheme which implements inference and learning for Hidden Markov Models
Creators: name: Singh, Abhinav
name: Wiuf, Carsten
name: Behera, Abhishek
name: Gopalkrishnan, Manoj
Publisher: name: arXiv
Year: 2019
Subjects: subject: Emerging Technologies (cs.ET)
subject: Machine Learning (cs.LG)
subject: Molecular Networks (q-bio.MN)
subject: FOS: Computer and information sciences
subject: FOS: Biological sciences

description: With a view towards molecular communication systems and molecular multi-agent systems, we propose the Chemical Baum-Welch Algorithm, a novel reaction network scheme that learns parameters for Hidden Markov Models (HMMs). Each reaction in our scheme changes only one molecule of one species to one molecule of another. The reverse change is also accessible but via a different set of enzymes, in a design reminiscent of futile cycles in biochemical pathways. We show that every fixed point of the Baum-Welch algorithm for HMMs is a fixed point of our reaction network scheme, and every positive fixed point of our scheme is a fixed point of the Baum-Welch algorithm. We prove that the "Expectation" step and the "Maximization" step of our reaction network separately converge exponentially fast. We simulate mass-action kinetics for our network on an example sequence, and show that it learns the same parameters for the HMM as the Baum-Welch algorithm.
description: Accepted at 25th International Conference on DNA Computing and Molecular Programming
Elastic properties of isotropic discrete systems: Connections between geometric structure and Poisson's ratio
Creators: name: Eliáš, Jan
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Engineering, Finance, and Science (cs.CE)
subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The use of discrete material representation in numerical models is advantageous due to the straightforward way it takes into account material heterogeneity and randomness, and the discrete and orientated nature of cracks. Unfortunately, it also restricts the macroscopic Poisson's ratio and therefore narrows its applicability. The paper studies the Poisson's ratio of a discrete model analytically. It derives theoretical limits for cases where the geometry of the model is completely arbitrary, but isotropic in the statistical sense. It is shown that the widest limits are obtained for models where normal directions of contacts between discrete units are parallel with the vectors connecting these units. Any deviation from parallelism causes the limits to shrink. A comparison of the derived equations to the results of the actual numerical model is presented. It shows relatively large deviations from the theory because the fundamental assumptions behind the theoretical derivations are largely violated in systems with complex geometry. The real shrinking of the Poisson's ratio limit is less severe compared to that which is theoretically derived.
Minimax estimation for mixtures of Wishart distributions
Creators: name: Haff, L. R.
name: Kim, P. T.
name: Koo, J. -Y.
name: Richards, D. St. P.
Publisher: name: arXiv
Year: 2012
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics

description: The space of positive definite symmetric matrices has been studied extensively as a means of understanding dependence in multivariate data along with the accompanying problems in statistical inference. Many books and papers have been written on this subject, and more recently there has been considerable interest in high-dimensional random matrices with particular emphasis on the distribution of certain eigenvalues. With the availability of modern data acquisition capabilities, smoothing or nonparametric techniques are required that go beyond those applicable only to data arising in Euclidean spaces. Accordingly, we present a Fourier method of minimax Wishart mixture density estimation on the space of positive definite symmetric matrices.
description: Published in at http://dx.doi.org/10.1214/11-AOS951 the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Deep Weakly-Supervised Learning Methods for Classification and Localization in Histology Images: A Survey
Creators: name: Rony, Jérôme
name: Belharbi, Soufiane
name: Dolz, Jose
name: Ayed, Ismail Ben
name: McCaffrey, Luke
name: Granger, Eric
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computer Vision and Pattern Recognition (cs.CV)
subject: Machine Learning (cs.LG)
subject: Image and Video Processing (eess.IV)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering

description: Using deep learning models to diagnose cancer from histology data presents several challenges. Cancer grading and localization of regions of interest (ROIs) in these images normally relies on both image- and pixel-level labels, the latter requiring a costly annotation process. Deep weakly-supervised object localization (WSOL) methods provide different strategies for low-cost training of deep learning models. Using only image-class annotations, these methods can be trained to classify an image, and yield class activation maps (CAMs) for ROI localization. This paper provides a review of state-of-art DL methods for WSOL. We propose a taxonomy where these methods are divided into bottom-up and top-down methods according to the information flow in models. Although the latter have seen limited progress, recent bottom-up methods are currently driving much progress with deep WSOL methods. Early works focused on designing different spatial pooling functions. However, these methods reached limited localization accuracy, and unveiled a major limitation -- the under-activation of CAMs which leads to high false negative localization. Subsequent works aimed to alleviate this issue and recover complete object. Representative methods from our taxonomy are evaluated and compared in terms of classification and localization accuracy on two challenging histology datasets. Overall, the results indicate poor localization performance, particularly for generic methods that were initially designed to process natural images. Methods designed to address the challenges of histology data yielded good results. However, all methods suffer from high false positive/negative localization. Four key challenges are identified for the application of deep WSOL methods in histology -- under/over activation of CAMs, sensitivity to thresholding, and model selection.
description: Accepted for publication at the Journal of Machine Learning for Biomedical Imaging (MELBA) https://melba-journal.org/2023:004