cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Galaxy clusters and a possible variation of the fine structure constant
Creators: name: Colaço, L. R.
name: Holanda, R. F. L.
name: Silva, R.
name: Alcaniz, J. S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: Galaxy clusters have been used as a cosmic laboratory to verify a possible time variation of fundamental constants. Particularly, it has been shown that the ratio $Y_{SZ}D_{A}^{2}/C_{XZS}Y_X $, which is expected to be constant with redshift, can be used to probe a variation of the fine structure constant, $α$. In this ratio, $Y_{SZ}D_{A}^{2}$ is the integrated comptonization parameter of a galaxy cluster obtained via Sunyaev-Zel'dovich (SZ) effect observations multiplied by its angular diameter distance, $D_A$, $Y_X$ is the X-ray counterpart and $C_{XSZ}$ is an arbitrary constant. Using a combination of SZ and X-ray data, a recent analysis found $Y_{SZ}D_{A}^{2}/C_{XZS}Y_X = {\rm{C}} α(z)^{3.5}$, where ${\rm{C}}$ is a constant. In this paper, following previous results that suggest that a variation of $α$ necessarily leads to a violation of the cosmic distance duality relation, $D_L/D_A(1+z)^2 = 1$, where $D_L$ is the luminosity distance of a given source, we derive a new expression, $Y_{SZ}D_{A}^{2}/C_{XSZ}Y_X = {\rm{C}} α^{3.5} η^{-1}(z)$, where $η(z) = D_L/D_A(1+z)^2$. In particular, considering the direct relation $η(z) \propto α(z)^{1/2}$, derived from a class of dilaton runaway models, %class of modified gravity theories, and 61 measurements of the ratio $Y_{SZ}D_{A}^{2}/C_{XSZ}Y_X$ provided by the Planck collaboration, we discuss bounds on a possible variation of $α$. We also estimate the value of the constant $ {\rm{C}}$, which is compatible with the unity at $2σ$ level, indicating that the assumption of isothermality for the temperature profile of the galaxy clusters used in the analysis holds.
description: JCAP Accepted, 8 pages, two figures, I table
Additional file 1 of Identification of distinct clinical phenotypes of acute respiratory distress syndrome with differential responses to treatment
Creators: name: Liu, Xiaowei
name: Jiang, Yusheng
name: Jia, Xiaonan
name: Ma, Xiaohui
name: Han, Ci
name: Guo, Nana
name: Peng, Yahui
name: Liu, Haitao
name: Ju, Yingnan
name: Luo, Xiangfeng
name: Li, Xueting
name: Bu, Yue
name: Zhang, Jin
name: Liu, Yansong
name: Gao, Yan
name: Zhao, Mingyan
name: Wang, Hongliang
name: Luo, Ligang
name: Yu, Kaijiang
name: Wang, Changsong
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Genetics
subject: FOS: Biological sciences
subject: Cancer
subject: Science Policy
subject: Computational Biology

description: Additional file 1. Figure S1. Study design. Figure S2. Patient selection on the eICU dataset. Figure S3. Variable missing heatmap under different extraction time window. Figure S4. Heatmap of correlation between clinical variables for phenotyping. Figure S5. OPTICS plots for eICU training/validation cohort. Figure S6. Gap statistics of K-Means on eICU derivation cohort. Figure S7. Consensus k clustering on eICU derivation cohort. Figure S8. t-SNE visualization of phenotype assignments by K-Means and consensus clustering. Figure S9. Line plot visualization of phenotype characteristics by K-Means and consensus clustering. Figure S10. Line plot visualization of phenotype characteristics on 2 clinical cohort. Figure S11. t-SNE visualization of phenotype assignments in 2 clinical cohort and 3 RCTs. Figure S12. Heterogeneity of treatment effect in ALVEOLI Trail. Figure S13. Heterogeneity of treatment effect in FACTT Trail. Figure S14. Heterogeneity of treatment effect in SAILS Trail. Figure S15. Alluvial plot of relationship between clinical phenotypes and Berlin Classification. Figure S16. Predictive power of APACHE score and ARDS severity on derived phenotype. Table S1. Availability of selected clinical variables by dataset. Table S2. Direction of abnormal values and distribution transformation. Table S3. Missing data across cohorts and trials. Table S4. Clinical characteristics of eICU derivation/validation cohorts.Table S5. Clinical characteristics of 3 RCTs. Table S6. Clinical characteristics by phenotype in eICU derivation cohort. Table S7. Clinical characteristics by phenotype in eICU validation cohort. Table S8. Clinical characteristics by phenotype in ALVEOLI. Table S9. Clinical characteristics by phenotype in FACTT. Table S10. Clinical characteristics by phenotype in SAILS. Table S11. Difference in clinical outcomes between phenotypes in three RCTs.
The ARCiS framework for Exoplanet Atmospheres: The Cloud Transport Model
Creators: name: Ormel, Chris W.
name: Min, Michiel
Publisher: name: arXiv
Year: 2018
Subjects: subject: Earth and Planetary Astrophysics (astro-ph.EP)
subject: FOS: Physical sciences

description: Understanding of clouds is instrumental in interpreting current and future spectroscopic observations of exoplanets. Modelling clouds consistently is complex, since it involves many facets of chemistry, nucleation theory, condensation physics, coagulation, and particle transport. We develop a simple physical model for cloud formation and transport, efficient and versatile enough that it can be used in modular fashion for parameter optimization searches of exoplanet atmosphere spectra. The transport equations are formulated in 1D, accounting for sedimentation and diffusion. The grain size is obtained through a moment method. For simplicity, only one cloud species is considered and the nucleation rate is parametrized. From the resulting physical profiles we simulate transmission spectra covering the visual to mid-IR wavelength range. We apply our models towards KCl clouds in the atmosphere of GJ1214 b and towards MgSiO3 clouds of a canonical hot-Jupiter. We find that larger cloud diffusivity $K_{zz}$ increases the thickness of the cloud, pushing the $τ=1$ surface to a lower pressure layer higher in the atmosphere. A larger nucleation rate also increases the cloud thickness while it suppresses the grain size. Coagulation is most important at high nuclei injection rates ($\dotΣ_n$) and low $K_{zz}$. We find that the investigated combinations of $K_{zz}$ and $\dotΣ_n$ greatly affect the transmission spectra in terms of the slope at near-IR wavelength (a proxy for grain size), the molecular features seen at ~1\micr (which disappear for thick clouds, high in the atmosphere), and the 10\micr silicate feature, which becomes prominent for small grains high in the atmosphere. The result of our hybrid approach -- aimed to provide a good balance between physical consistency and computational efficiency -- is ideal towards interpreting (future) spectroscopic observations of exoplanets.
description: language and other tiny corrections
Electric-field modulation of linear dichroism and Faraday rotation in few-layer phosphorene
Creators: name: Li, L. L.
name: Partoens, B.
name: Xu, W.
name: Peeters, F. M.
Publisher: name: arXiv
Year: 2018
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: Electro-optical modulators, which use an electric voltage (or an electric field) to modulate a beam of light, are essential elements in present-day telecommunication devices. Using a self-consistent tight-binding approach combined with the standard Kubo formula, we show that the optical conductivity and the linear dichroism of few-layer phosphorene can be modulated by a perpendicular electric field. We find that the field-induced charge screening plays a significant role in modulating the optical conductivity and the linear dichroism. Distinct absorption peaks are induced in the conductivity spectrum due to the strong quantum confinement along the out-of-plane direction and to the field-induced forbidden-to-allowed transitions. The field modulation of the linear dichroism becomes more pronounced with increasing number of phosphorene layers. We also show that the Faraday rotation is present in few-layer phosphorene even in the absence of an external magnetic field. This optical Hall effect is induced by the reduced lattice symmetry of few-layer phosphorene. The Faraday rotation is greatly influenced by the field-induced charge screening and is strongly dependent on the strength of perpendicular electric field and on the number of phosphorene layers.
description: 10 pages, 9 figures, to appear in 2D Materials
Magnetic-Field-Driven Superconductor-Insulator-Type Transition in Graphite
Creators: name: Kempa, H.
name: Kopelevich, Y.
name: Mrowka, F.
name: Setzer, A.
name: Torres, J. H. S.
name: Höhne, R.
name: Esquinazi, P.
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: A magnetic-field-driven transition from metallic- to semiconducting-type behavior in the basal-plane resistance takes place in highly oriented pyrolytic graphite at a field $H_c \sim 1~$kOe applied along the hexagonal c-axis. The analysis of the data reveals a striking similarity between this transition and that measured in thin-film superconductors and Si MOSFET's. However, in contrast to those materials, the transition in graphite is observable at almost two orders of magnitude higher temperatures.
description: 4 Figures
Mean-Field HP Model, Designability and Alpha-Helices in Protein Structures
Creators: name: Shih, C. T.
name: Su, Z. Y.
name: Gwan, J. F.
name: Lee, H. C.
name: Hao, B. L.
name: Hsieh, C. H.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Quantitative Biology (q-bio)
subject: FOS: Physical sciences
subject: FOS: Biological sciences

description: Analysis of the geometric properties of a mean-field HP model on a square lattice for protein structure shows that structures with large number of switch backs between surface and core sites are chosen favorably by peptides as unique ground states. Global comparison of model (binary) peptide sequences with concatenated (binary) protein sequences listed in the Protein Data Bank and the Dali Domain Dictionary indicates that the highest correlation occurs between model peptides choosing the favored structures and those portions of protein sequences containing alpha-helices.
description: 4 pages, 2 figures
The Labusch Parameter of a Driven Flux Line Lattice in YBa$_2$Cu$_3$O$_7$ Superconducting Films
Creators: name: Pan, Alexey V.
name: Esquinazi, Pablo
Publisher: name: arXiv
Year: 2000
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We have investigated the influence of a driving force on the elastic coupling (Labusch parameter) of the field-cooled state of the flux line lattice (FLL) in 400 nm thick YBa$_2$Cu$_3$O$_7$ superconducting films. We found that the FLL of a field-cooled state without driving forces is not in an equilibrium state. Results obtained for magnetic fields applied at $0^\circ$ and 30$^\circ$ relative to CuO$_2$ planes, show an enhancement of the elastic coupling of the films at driving current densities several orders of magnitude smaller than the critical one. Our results indicate that the FLL appears to be in a relatively ordered, metastable state after field cooling without driving forces.
description: 4 Figures
Detecting Axion-like Dark Matter with Linearly Polarized Pulsar Light
Creators: name: Liu, Tao
name: Smoot, George
name: Zhao, Yue
Publisher: name: arXiv
Year: 2019
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: Astrophysics of Galaxies (astro-ph.GA)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Non-relativistic QCD axions or axion-like particles are among the most popular candidates for cold Dark Matter (DM) in the universe. We proposed to detect axion-like DM, using linearly polarized pulsar light as a probe. Because of birefringence effect potentially caused by an oscillating galactic axion DM background, when pulsar light travels across the galaxy, its linear polarization angle may vary with time. With a soliton+NFW galactic DM density profile, we show that this strategy can potentially probe an axion-photon coupling as small as $\sim 10^{-13}$ GeV$^{-1}$ for axion mass $m_a \sim 10^{-22}-10^{-20}$ eV, given the current measurement accuracy. An exclusion limit stronger than CAST ($ \sim 10^{-10}$ GeV$^{-1}$) and SN1987A ($ \sim 10^{-11}$ GeV$^{-1}$) could be extended up to $m_a \sim 10^{-18}$ eV and $\sim 10^{-19}$ eV, respectively.
description: 6 pages, 1 figure; calculation corrected, main conclusions unchanged, references added
Additional file 1: of Significant improvement of miRNA target prediction accuracy in large datasets using meta-strategy based on comprehensive voting and artificial neural networks
Creators: name: Zhao, Bi
name: Xue, Bin
Publisher: name: figshare
Year: 2019
Subjects: subject: Biochemistry
subject: Genetics
subject: FOS: Biological sciences
subject: 69999 Biological Sciences not elsewhere classified
subject: 80699 Information Systems not elsewhere classified
subject: FOS: Computer and information sciences
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics

description: Table S1. The 1st-step and 2nd-step threshold values for both true and false predictions in eleven DANN modules. Table S2. Sensitivity (Sens), specificity (Spec), and accuracy (Acc) of miRanda, miRDB, PITA, TargetScan, MTR*, and ComiR in the eleven non-redundant datasets under multi-fold cross-validation. Table S3.â F1 and Mathews Correlation Coefficient (MCC) of miRanda, miRDB, PITA, TargetScan, MTR*, and ComiR in the eleven non-redundant datasets under multi-fold cross-validation. Table S4. Sensitivity (Sens), specificity (Spec), and accuracy (Acc) of miRanda, miRDB, PITA, TargetScan, MTR*, and ComiR in the eleven independent test datasets. Table S5.â F1 and Mathews Correlation Coefficient (MCC) of miRanda, miRDB, PITA, TargetScan, MTR*, and ComiR in the eleven independent test datasets. Figure S1. ROC curves of individual predictors in eleven newly designed datasets that contains duplicate samples. Figure S2. Information gain compared to the distribution of positive and negative samples in four D3 series datasets and six D2 series datasets for (A) miRanda, (B) miRDB, (C) PITA, and (D) TargetScan, when the prediction scores of these predictors are available. (DOCX 642 kb)
Charge Current Density from the Scattering Matrix
Creators: name: Taniguchi, Tooru
Publisher: name: arXiv
Year: 2000
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A method to derive the charge current density and its quantum mechanical correlation from the scattering matrix is discussed for quantum scattering systems described by a time-dependent Hamiltonian operator. The current density and charge density are expressed with the help of functional derivatives with respect to the vector potential and the electric potential. A condition imposed by the requirement that these local quantities are gauge invariant is considered. Our formulas lead to a direct relation between the local density of states and the total current density at a given energy. To illustrate the results we consider, as an example, a chiral ladder model.
description: 4 pages, 1 figure
БУХОРО ВОҲАСИ ЎТЛОҚИ ТУПРОҚЛАРНИНГ АГРОФИЗИКАВИЙ ХОССАЛАРИ (Вобкент тумани мисолида)
Creators: name: Назарова, Севара
name: Шарипова, Амина
Publisher: name: Zenodo
Year: 2024

description: маколада Бухоро воҳаси суғориладиган ўтлоқи тупроқларнинг умумий физикавий хоссалари ўрганилган. Тупроқларнинг ғоваклиги  пастга томон камайиб бориши кузатилган. Тупроқларнинг механик таркиби оғирлашиб бориши билан унинг зичлиги бирмунча юқори бўлиши аниқланган.
MOESM2 of Factors associated with low birth weight at Debre Markos Referral Hospital, Northwest Ethiopia: a hospital based cross-sectional study
Creators: name: Animut Alebel
name: Fasil Wagnew
name: Cheru Tesema
name: Alemu Gebrie
name: Ketema, Daniel
name: Getnet Asmare
name: Getiye Kibret
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Science Policy

description: Additional file 2: Table S2. Bivariable and multivariable logistic regression analysis of factors associated with low birth weight at Debre Markos Referral Hospital, Northwest Ethiopia, 2018.
Theory and Data Analysis for the High Momentum End of $^4$He spectrum
Creators: name: Pistolesi, F.
Publisher: name: arXiv
Year: 1998
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: The hybridization of the single-excitation branch with the two-excitation continuum is reconsidered from the theoretical point of view by including the effect of the interference term between one and two excitations. The phenomenological theory presented is used to reproduce the experimental data over a wide region of momentum (2.3-3.6 A^{-1}) and energy (0-12 meV). It is thus possible to extract the final part of $^4$He spectrum with higher accuracy. It is found that data agree with a dispersion relation always below twice the roton energy. This is consistent with the negative value of the roton-roton interaction found.
description: Latex with jltp class. 1 figure, paper presented at QFS98
Spin Susceptibility and Specific Heat in the d-p Model
Creators: name: Koikegami, Shigeru
name: Yamada, Kosaku
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Superconductivity (cond-mat.supr-con)
subject: FOS: Physical sciences

description: We analyze the two-dimensional {\it d-p} model, considering both antiferromagnetic spin fluctuation and $d_{x^2-y^2}$-wave superconducting fluctuation. We adopt the fluctuation-exchange approximation in order to derive both normal and anomalous vertices composed only of the renormalized {\it d}-electron Green function and the on-site repulsive interaction among the {\it d}-electrons. Using these vertices, we derive a $t$-matrix as a superconducting fluctuation propagator. Then, we obtain self-consistent solutions in which the system is close to antiferromagnetic instability. In our solutions, the superconducting fluctuation couples strongly with the quasiparticle state and this causes the anomalous behavior in the temperature dependences of spin susceptibility and specific heat.
description: 4 pages, 4 figures, to be published in Journal of the Physical Society of Japan, Vol.69 (2000) No.7
Thermodynamic utility of Non-Markovianity from the perspective of resource interconversion
Creators: name: Bhattacharya, Samyadeb
name: Bhattacharya, Bihalan
name: Majumdar, A. S.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We establish a connection between non-Markovianity and negative entropy production rate for various classes of quantum operations. We analyse several aspects of unital and thermal operations in connection with resource theories of purity and thermodynamics. We fully characterize Lindblad operators corresponding to unital operations. We also characterize the Lindblad dynamics for a large class of thermal operations. We next generalize the definition of the entropy production rate for the non-equilibrium case to connect it with the rate of change of free energy of the system, and establish complementary relations between non-Markovianity and maximum loss of free energy. We naturally conclude that non-Markovianity in terms of divisibility breaking is a necessary resource for the backflow of other resources like purity or free energy under the corresponding allowed operations.
description: 8 pages, 3 figures. Comments are welcome. arXiv admin note: substantial text overlap with arXiv:1803.06881
Additional file 1 of Investigation of optimal gestational weight gain based on the occurrence of adverse pregnancy outcomes for Chinese women: a prospective cohort study
Creators: name: Sun, Yin
name: Shen, Zhongzhou
name: Zhan, Yongle
name: Wang, Yawen
name: Ma, Shuai
name: Zhang, Suhan
name: Liu, Juntao
name: Wu, Sansan
name: Feng, Yahui
name: Chen, Yunli
name: Cai, Shuya
name: Shi, Yingjie
name: Ma, Liangkun
name: Jiang, Yu
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Physiology
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Immunology
subject: FOS: Clinical medicine
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Science Policy
subject: Mental Health

description: Additional file 1: Supplementary Table 1. Recommended gestational weight gain of different criteria.
Magnetic and Charge Correlations of the 2-dimensional $t-t'-U$ Hubbard model
Creators: name: Frésard, Raymond
name: Zimmermann, Walter
Publisher: name: arXiv
Year: 1998
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Using a spin-rotation invariant six-slave boson representation, we study the square lattice Hubbard model with nearest-neighbor hopping $t$ and next-nearest neighbor hopping $t'$. We discuss the influence of $t'$ on the charge and magnetic properties. In the hole-doped domain, we find that a negative $t'$ strongly favors itinerant ferromagnetism over any incommensurate phase, especially in the strong coupling regime. For positive $t'$ magnetic fluctuations are suppressed. A tight connection between frustrated charge dynamics and large magnetic fluctuations is pointed out. A clear tendency towards striped charge ordering is found in the regime of large positive $t'$.
description: 14 pages, 5 figures
Onthophagus durangoensis Balthasar 1939
Creators: name: Bezděk, Aleš
name: Hájek, Jiří
Publisher: name: Zenodo
Year: 2013
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Coleoptera
Scarabaeidae
Onthophagus
Onthophagus durangoensis

description: Onthophagus durangoensis Balthasar, 1939
 Onthophagus durangoensis Balthasar, 1939a: 45.
Two syntypes are deposited in NMPC (ex coll. V. Balthasar):
SYNTYPE (unsexed specimen):‘ DURANGO / Canelas / R.Becker S.[p]// Typus [p, red label,black frame] // Onthophagus
/ durangoensis n. sp. [hw] / Dr. V. Balthasar det. [p] // Mus. Nat. Pragae / Inv. 26329 [hw, orange label]’.
SYNTYPE (unsexed specimen): ‘ DURANGO / Canelas / R. Becker S. [p] // Typus [p, red label, black frame] // Onthophagus / durangoensis / n. sp. [hw] / Dr. V. Balthasar det. [p] // Mus. Nat. Pragae / Inv. 26328 [hw, orange label] // durangoensis / m. [hw, green label] // Zunino 2004: / valid name / syn: O. mext- / exus H. & C. / 1970, nomen / novum pro / O. monticolus / H. & C. 1963 [hw]’.
 Current status. Valid species; not assigned to any subgenus.
description: Published as part of Bezděk, Aleš & Hájek, Jiří, 2013, Catalogue of type specimens of beetles (Coleoptera) deposited in the National Museum, Prague, Czech Republic, pp. 387-442 in Acta Entomologica Musei Nationalis Pragae 53 (1) on pages 404-405, DOI: 10.5281/zenodo.5739743
Sorption of semi-volatile organic compounds to dust and other surfaces in indoor environments
Creators: name: Bi, Chenyang
name: 0000-0003-0131-0310
Publisher: name: The University of Texas at Austin
Year: 2018
Subjects: Sorption
SVOCs
Dust
Surfaces
Indoor

description: Semi-volatile organic compounds (SVOCs) are ubiquitous in indoor environments. Because they partition strongly to dust other surfaces in the indoor environments, most SVOCs persist for years after the source is removed. Biomonitoring data based on blood and urine testing suggested the universal and significant human exposure to SVOCs, which may result in serious adverse health effects. However, because of the poor understanding of their transfer process from sources to indoor surfaces, significant uncertainties exist for the estimation of exposure to SVOCs through various pathways and effective strategies to limit such exposure remains hamstrung. The goal of this dissertation is to explicitly elucidate the sorption of important and emerging SVOCs to dust and other surfaces in the indoor environments. The specific research objectives are to 1) investigate the emission, sorption, and fate of phthalates in a residential test house; 2) characterize the direct transfer of SVOCs from sources to settled dust through systematic chamber study; and 3) measure SVOC levels in heating, ventilation, and air conditioning (HVAC) filter dust of U.S. lowincome homes and investigate their association with concentrations in settled dust, seasons, building characteristics, and childhood asthma. Strong sorption of phthalates was observed on interior surfaces, including dust, dish plates, windows, mirrors, fabric cloth, and wood, in a residential test house. In addition, when dust is in contact with the PVC floorings, equilibrium dust concentrations of phthalates are orders of magnitude higher than typical dust concentrations reported in the literature. And we found that the equilibrium concentrations of phthalates in dust can be predicted with the concentrations of phthalates within the gas layer in adjacent with the flooring materials. Finally, the results suggest that HVAC filter dust is a useful sampling media to monitor indoor SVOC concentrations with high sensitivity. When using settled dust, in addition to considering seasonal influences, it is very important to know the sampling location because the types and levels of SVOCs might be related to the local materials.
Correlation structure of extreme stock returns
Creators: name: Cizeau, Pierre
name: Potters, Marc
name: Bouchaud, Jean-Philippe
Publisher: name: arXiv
Year: 2000
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Statistical Finance (q-fin.ST)
subject: FOS: Physical sciences
subject: FOS: Economics and business

description: It is commonly believed that the correlations between stock returns increase in high volatility periods. We investigate how much of these correlations can be explained within a simple non-Gaussian one-factor description with time independent correlations. Using surrogate data with the true market return as the dominant factor, we show that most of these correlations, measured by a variety of different indicators, can be accounted for. In particular, this one-factor model can explain the level and asymmetry of empirical exceedance correlations. However, more subtle effects require an extension of the one factor model, where the variance and skewness of the residuals also depend on the market return.
description: Substantial rewriting. Added exceedance correlations, removed some confusing material. To appear in Quantitative Finance
ТЕРМИЧЕСКАЯ ОБРАБОТКА ТВЕР¬ДОСПЛАВНОГО ПОКРЫТИЯ ИЗ ВЫСОКОХРОМИСТОГО ТВЕРДОГО СПЛАВА
Creators: name: .Л.Алимбабаева Филиал РГУ нефти и газа (НИУ) имени И.М.Губкина в г. Ташкенте. Ташкент, Узбекистан
Publisher: name: Zenodo
Year: 2024

description: В статье представлены материалы исследований структуры и свойств изделий, полученных с твердосплавными покрытиями в процессе литья по газовым моделям. Исследованы состав и свойства стали, изучены твердость и микротвердость поверхностного и приповерхностного слоев отливки. Были проанализированы прогибы экспериментальных и полевых испытаний. Двухфазная рекристаллизация является последним режимом термической обработки литых деталей. Показано, что при двухфазной рекристаллизационной термообработке сопротивление ползучести твердосплавных покрытий.

Ключевые слова: твердосплавное покрытие, высокоуглеродистая сталь, модель газификации литьем, твердость и микро твёрдость двухфазная рекристаллизационная термообработка, сопротивление изгибу и долговечность.
Numerical Simulation of Coronal Waves interacting with Coronal Holes: I. Basic Features
Creators: name: Piantschitsch, Isabell
name: Vrsnak, Bojan
name: Hanslmeier, Arnold
name: Lemmerer, Birgit
name: Veronig, Astrid
name: Hernandez-Perez, Aaron
name: Calogovic, Jasa
name: Zic, Tomislav
Publisher: name: arXiv
Year: 2018
Subjects: subject: Solar and Stellar Astrophysics (astro-ph.SR)
subject: FOS: Physical sciences

description: We developed a new numerical code that is able to perform 2.5D simulations of a magnetohydrodynamic (MHD) wave propagation in the corona, and its interaction with a low density region, such as a coronal hole (CH). We show that the impact of the wave on the CH leads to different effects, such as reflection and transmission of the incoming wave, stationary features at the CH boundary, or formation of a density depletion. We present a comprehensive analysis of the morphology and kinematics of primary and secondary waves, that is, we describe in detail the temporal evolution of density, magnetic field, plasma flow velocity, phase speed and position of the wave amplitude. Effects like reflection, refraction and transmission of the wave strongly support the theory that large scale disturbances in the corona are fast MHD waves and build the major distinction to the competing pseudo-wave theory. The formation of stationary bright fronts was one of the main reasons for the development of pseudo-waves. Here we show that stationary bright fronts can be produced by the interactions of an MHD wave with a CH. We find secondary waves that are traversing through the CH and we show that one part of these traversing waves leaves the CH again, while another part is being reflected at the CH boundary inside the CH. We observe a density depletion that is moving in the opposite direction of the primary wave propagation. We show that the primary wave pushes the CH boundary to the right, caused by the wave front exerting dynamic pressure on the CH.
Scattering in pseudo-Hermitian quantum field theory and causality violation
Creators: name: Novikov, Oleg O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: The non-Hermitian but $\mathcal{PT}$-symmetric quantum field theories are known to have a pseudo-Hermitian interpretation. However the corresponding intertwining operator happens to be nonlocal that raises the question to what extent this nonlocality affects observable quantities. We consider the case when the intrinsic parity of the interaction terms is determined by degree of coupling constant. We show that the perturbative S-matrix of the equivalent Hermitian description can be easily obtained from the perturbative S-matrix of the non-Hermitian model. Namely, the first order vanishes whereas the second order is given by the real part of the second order T-matrix of the non-Hermitian model. We compute directly the 2-point and 4-point correlation functions in the equivalent Hermitian model for the $iϕ^3$ model and find the results consistent with this relation. The 1-loop correction to the mass happens to be real reflecting the disappearance of 2-body decays. However the 2 to 2 scattering amplitude obtained using LSZ formula has poles taken in principal value which implies the violation of the causality.
description: 27 pages; added new references and new concluding remarks
Additional file 1: of Spatial and temporal analysis of beta diversity in the Barro Colorado Island forest dynamics plot, Panama
Creators: name: Legendre, Pierre
name: Condit, Richard
Publisher: name: figshare
Year: 2019
Subjects: subject: Biophysics
subject: Medicine
subject: Molecular Biology
subject: 59999 Environmental Sciences not elsewhere classified
subject: FOS: Earth and related environmental sciences
subject: Ecology
subject: FOS: Biological sciences

description: Appendix S1. TBI analysis of group 4 (the swamp) using the TBI() function in R. Appendix S2. B-C plots, occurrence (presence-absence) data.
Epitaxial strain adaption in chemically disordered FeRh thin films
Creators: name: Witte, Ralf
name: Kruk, Robert
name: Wang, Di
name: Schlabach, Sabine
name: Brand, Richard A.
name: Gruner, Markus E.
name: Wende, Heiko
name: Hahn, Horst
Publisher: name: arXiv
Year: 2019
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Strain and strain adaption mechanisms in modern functional materials are of crucial importance for their performance. Understanding these mechanisms will advance innovative approaches for material properties engineering. Here we study the strain adaption mechanism in a thin film model system as function of epitaxial strain. Chemically disordered FeRh thin films are deposited on W-V buffer layers, which allow for large variation of the preset lattice constants, e.g. epitaxial boundary condition. It is shown by means of high resolution X-ray reciprocal space maps and transmission electron microscopy that the system reacts with a tilting mechanism of the structural units in order to adapt to the lattice constants of the buffer layer. This response explained by density functional theory calculations, which evidence an energetic minimum for structures with a distortion of c/a =0.87. The experimentally observed tilting mechanism is induced by this energy gain and allows the system to remain in the most favorable structure. In general, it is shown that the use of epitaxial model heterostructures consisting of alloy buffer layers of fully miscible elements and the functional material of interest allows to study strain adaption behaviors in great detail. This approach makes even small secondary effects observable, such as the directional tilting of the structural domains identified in the present case study.
MOESM1 of Factors associated with low birth weight at Debre Markos Referral Hospital, Northwest Ethiopia: a hospital based cross-sectional study
Creators: name: Animut Alebel
name: Fasil Wagnew
name: Cheru Tesema
name: Alemu Gebrie
name: Ketema, Daniel
name: Getnet Asmare
name: Getiye Kibret
Publisher: name: figshare
Year: 2019
Subjects: subject: Space Science
subject: Medicine
subject: Biotechnology
subject: 39999 Chemical Sciences not elsewhere classified
subject: FOS: Chemical sciences
subject: Sociology
subject: FOS: Sociology
subject: Immunology
subject: FOS: Clinical medicine
subject: 69999 Biological Sciences not elsewhere classified
subject: FOS: Biological sciences
subject: Developmental Biology
subject: Science Policy

description: Additional file 1: Table S1. Nutritional, behavioral and neonatal factors of the respondents at Debre Markos Referral Hospital Northwest Ethiopia, 2018.
Intercomparison of an Aerosol Chemical Speciation Monitor (ACSM) with ambient fine aerosol measurements in downtown Atlanta, Georgia
Creators: name: Jayne, J. T.
name: Ng, N. L.
name: Budisulistiorini, S. H.
name: Verma, V.
name: Weber, R.J.
name: Surratt, J. D.
name: Worsnop, D. R.
name: Edgerton, E. S.
name: Canagaratna, M. R.
name: Kollman, M. S.
name: Knipping, E. M.
name: Croteau, P. L.
name: Shaw, S. L.
name: Baumann, K.
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2014

description: Currently, there are a limited number of field studies that evaluate the long-term performance of the Aerodyne Aerosol Chemical Speciation Monitor (ACSM) against established monitoring networks. In this study, we present seasonal intercomparisons of the ACSM with collocated fine aerosol (PM2.5) measurements at the Southeastern Aerosol Research and Characterization (SEARCH) Jefferson Street (JST) site near downtown Atlanta, GA, during 2011–2012. Intercomparison of two collocated ACSMs resulted in strong correlations (r2 > 0.8) for all chemical species, except chloride (r2 = 0.21) indicating that ACSM instruments are capable of stable and reproducible operation. In general, speciated ACSM mass concentrations correlate well (r2 > 0.7) with the filter-adjusted continuous measurements from JST, although the correlation for nitrate is weaker (r2 = 0.55) in summer. Correlations of the ACSM NR-PM1 (non-refractory particulate matter with aerodynamic diameter less than or equal to 1 μm) plus elemental carbon (EC) with tapered element oscillating microbalance (TEOM) PM2.5 and Federal Reference Method (FRM) PM1 mass are strong with r2 > 0.7 and r2 > 0.8, respectively. Discrepancies might be attributed to evaporative losses of semi-volatile species from the filter measurements used to adjust the collocated continuous measurements. This suggests that adjusting the ambient aerosol continuous measurements with results from filter analysis introduced additional bias to the measurements. We also recommend to calibrate the ambient aerosol monitoring instruments using aerosol standards rather than gas-phase standards. The fitting approach for ACSM relative ionization for sulfate was shown to improve the comparisons between ACSM and collocated measurements in the absence of calibrated values, suggesting the importance of adding sulfate calibration into the ACSM calibration routine.
From continuous-time random walks to controlled-diffusion reaction
Creators: name: Santos, Maike A. F. dos
Publisher: name: arXiv
Year: 2019
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Mathematical Physics (math-ph)
subject: FOS: Physical sciences

description: Daily, are reported systems in nature that present anomalous diffusion phenomena due to irregularities of medium, traps or reactions process. In this scenario, the diffusion with traps or localised--reactions emerge through various investigations that include numerical, analytical and experimental techniques. In this work, we construct a model which involves a coupling of two diffusion equations to approach the random walkers in a medium with localised reaction point (or controlled diffusion). We present the exact analytical solutions to the model. In the following, we obtain the survival probability and mean square displacement. Moreover, we extend the model to include memory effects in reaction points. Thereby, we found a simple relation that connects the power-law memory kernels with anomalous diffusion phenomena, i.e. $\langle (x-\langle x \rangle )^2 \rangle \propto t^μ$. The investigations presented in this work uses recent mathematical techniques to introduces a form to represent the coupled random walks in context of reaction-diffusion problem to localised reaction.
Analogues of Entropy in Bi-Free Probability Theory: Non-Microstate
Creators: name: Charlesworth, Ian
name: Skoufranis, Paul
Publisher: name: arXiv
Year: 2019
Subjects: subject: Operator Algebras (math.OA)
subject: Functional Analysis (math.FA)
subject: FOS: Mathematics
subject: 46L54, 46L53

description: In this paper, we extend the notion of non-microstate free entropy to the bi-free setting. Using a diagrammatic approach involving bi-non-crossing diagrams, bi-free difference quotients are constructed as analogues of the free partial derivations. Adjoints of bi-free difference quotients are discussed and used to define bi-free conjugate variables. Notions of bi-free Fisher information and non-microstate entropy are defined and properties of free entropy are extended to the bi-free setting.
description: New version adds a section on non-microstate bi-free entropy dimension
The Ras-ERK MAPK regulatory network controls dedifferentiation in Caenorhabditis elegans germline
Creators: name: Cha, Dong Seok
name: Kimble, Judith
name: Lee, Myon-Hee
name: Hollis, Sarah E.
name: Datla, Udaya Sree
Publisher: name: The University of North Carolina at Chapel Hill University Libraries
Year: 2012

description: Appendix A Supplementary data Supplementary materials. Download Appendix A Supplementary data Supplementary data to this article can be found online at http://dx.doi.org/10.1016/j.bbamcr.2012.07.006 . Abstract How a committed cell can be reverted to an undifferentiated state is a central question in stem cell biology. This process, called dedifferentiation, is likely to be important for replacing stem cells as they age or get damaged. Tremendous progress has been made in understanding this fundamental process, but its mechanisms are poorly understood. Here we demonstrate that the aberrant activation of Ras-ERK MAPK signaling promotes cellular dedifferentiation in the Caenorhabditis elegans germline. To activate signaling, we removed two negative regulators, the PUF-8 RNA-binding protein and LIP-1 dual specificity phosphatase. The removal of both of these two regulators caused secondary spermatocytes to dedifferentiate and begin mitotic divisions. Interestingly, reduction of Ras-ERK MAPK signaling, either by mutation or chemical inhibition, blocked the initiation of dedifferentiation. By RNAi screening, we identified RSKN-1/P90 RSK as a downstream effector of MPK-1/ERK that is critical for dedifferentiation: rskn-1 RNAi suppressed spermatocyte dedifferentiation and instead induced meiotic divisions. These regulators are broadly conserved, suggesting that similar molecular circuitry may control cellular dedifferentiation in other organisms, including humans.
Additional file 1: of The effectiveness and cost-effectiveness of strength and balance Exergames to reduce falls risk for people aged 55â years and older in UK assisted living facilities: a multi-centre, cluster randomised controlled trial
Creators: name: Stanmore, Emma
name: Mavroeidi, Alexandra
name: Jong, Lex De
name: Skelton, Dawn
name: Sutton, Chris
name: Benedetto, Valerio
name: Munford, Luke
name: Meekes, Wytske
name: Bell, Vicky
name: Todd, Chris
Publisher: name: figshare
Year: 2019
Subjects: subject: Medicine
subject: Sociology
subject: FOS: Sociology
subject: 19999 Mathematical Sciences not elsewhere classified
subject: FOS: Mathematics
subject: Science Policy

description: Table S1. Exercise description and corresponding games. Figure S1. An example of a participant Exergame schedule. Table S2. Games and description of play. (DOCX 876 kb)
Additional file 1 of Identification of prognostic values defined by copy number variation, mRNA and protein expression of LANCL2 and EGFR in glioblastoma patients
Creators: name: Zhao, Hua-fu
name: Zhou, Xiu-ming
name: Wang, Jing
name: Chen, Fan-fan
name: Wu, Chang-peng
name: Diao, Peng-yu
name: Cai, Lin-rong
name: Chen, Lei
name: Xu, Yan-wen
name: Liu, Jing
name: Li, Zong-yang
name: Liu, Wen-lan
name: Chen, Zhong-ping
name: Huang, Guo-dong
name: Li, Wei-ping
Publisher: name: figshare
Year: 2021
Subjects: subject: Cell Biology
subject: Genetics
subject: FOS: Biological sciences
subject: Molecular Biology
subject: Biological Sciences not elsewhere classified
subject: Mathematical Sciences not elsewhere classified
subject: Marine Biology
subject: Cancer
subject: Computational Biology

description: Additional file 1: Figure S1. Prognostic values of LANCL2 and EGFR amplification for OS and PFS in GBM patients of TCGA database. Figure S2. mRNA overexpression of LANCL2 and EGFR was not associated with prognosis of historical or IDH1/2-wild-type GBM patients. Figure S3. The prognostic values of amplification of LANCL2 or EGFR, and their co-amplification in IDH1/2-wild-type GBM patients from Shenzhen Second People’s Hospital and Sun Yat-sen University Cancer Center. Table S1. Multivariate analysis by the Cox proportional hazard regression model in a forward manner in older GBM patients (age ≥ 60 yrs) of TCGA database. Table S2. Univariate analysis for OS and PFS in IDH1/2-wild-type GBM patients of TCGA database. Table S3. Multivariate analysis by the Cox proportional hazard regression model for OS in IDH1/2-wild-type GBM patients of TCGA database. Table S4. Multivariate analysis by the Cox proportional hazard regression model in a forward manner in older GBM patients (age ≥ 60 yrs) from tumor banks. Table S5. Amplification and co-amplification of LANCL2 and EGFR in GBM samples of tumor banks. Table S6. Protein overexpression of LanCL2 and EGFR in GBM samples of tumor banks.
Atomic and electronic structure of the Si(331)-(12$\times$1) surface
Creators: name: Zhachuk, Ruslan
name: Coutinho, José
name: Palotás, Krisztián
Publisher: name: arXiv
Year: 2018
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We report on the investigation of the atomic and electronic structures of a clean Si(331)-(12$\times$1) surface using a first-principles approach with both plane wave and strictly localized basis sets. Starting from the surface structure proposed by Zhachuk and Teys [Phys. Rev. B 95, 041412(R) (2017)], we develop significant improvements to the atomic model and localized basis set which are critical for the correct description of the observed bias dependence of scanning tunneling microscopy (STM) images. The size mismatch between the Si pentamers from the surface model and those seen by STM is explained within the context of the Tersoff-Hamann model. The energy barriers that separate different Si(331) buckled configurations were estimated, showing that the surface structure is prone to dynamic buckling at room temperature. It is found that empty electronic states on Si(331) are essentially localized on the pentamers with interstitials and under-coordinated Si sp$^2$-like atoms between them, while filled electronic states are localized on under-coordinated Si sp$^3$-like atoms and dimers on trenches. The calculated electronic density of states exhibits two broad peaks in the fundamental bandgap of Si: one near the valence band top and the other near the conduction band bottom. The resulting surface bandgap of 0.58 eV is in an excellent agreement with spectroscopy studies.
On Reachability Problems for Low-Dimensional Matrix Semigroups
Creators: name: Colcombet, Thomas
name: Ouaknine, Joël
name: Semukhin, Pavel
name: Worrell, James
Publisher: name: arXiv
Year: 2019
Subjects: subject: Computational Complexity (cs.CC)
subject: Formal Languages and Automata Theory (cs.FL)
subject: FOS: Computer and information sciences
subject: F.2.1; F.1.1

description: We consider the Membership and the Half-Space Reachability problems for matrices in dimensions two and three. Our first main result is that the Membership Problem is decidable for finitely generated sub-semigroups of the Heisenberg group over rational numbers. Furthermore, we prove two decidability results for the Half-Space Reachability Problem. Namely, we show that this problem is decidable for sub-semigroups of $\mathrm{GL}(2,\mathbb{Z})$ and of the Heisenberg group over rational numbers.
description: Full version of the paper submitted to ICALP 2019
Dzyaloshinskii-Moriya interaction in NaV$_2$O$_5$: a microscopic study
Creators: name: Valenti, Roser
name: Gros, Claudius
name: Brenig, Wolfram
Publisher: name: arXiv
Year: 2000
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We present a unified account of magnetic exchange and Raman scattering in the quasi-one-dimensional transition-metal oxide NaV$_2$O$_5$. Based on a cluster-model approach explicit expressions for the exchange integral and the Raman-operator are given. It is demonstrated that a combination of the electronic-structure and the Dzyaloshinskii-Moriya interaction, allowed by symmetry in this material, are responsible for the finite Raman cross-section giving rise to both, one- and two-magnon scattering amplitudes.
description: 7 pages, 1 figure