cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
On the limiting distributions of multivariate depth-based rank sum statistics and related tests
Creators: name: Zuo, Yijun
name: He, Xuming
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G20 (Primary) 62G10, 62H10, 62H15 (Secondary)

description: A depth-based rank sum statistic for multivariate data introduced by Liu and Singh [J. Amer. Statist. Assoc. 88 (1993) 252--260] as an extension of the Wilcoxon rank sum statistic for univariate data has been used in multivariate rank tests in quality control and in experimental studies. Those applications, however, are based on a conjectured limiting distribution, provided by Liu and Singh [J. Amer. Statist. Assoc. 88 (1993) 252--260]. The present paper proves the conjecture under general regularity conditions and, therefore, validates various applications of the rank sum statistic in the literature. The paper also shows that the corresponding rank sum tests can be more powerful than Hotelling's T^2 test and some commonly used multivariate rank tests in detecting location-scale changes in multivariate distributions.
description: Published at http://dx.doi.org/10.1214/009053606000000876 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Influence of Immune Status on the Airborne Colonization of Piglets with Methicillin-Resistant Staphylococcus aureus (MRSA) Clonal Complex (CC) 398
Creators: name: Rosen, Kerstin
name: Ebner, Friederike
name: Schmidt, Stefanie
name: Hartmann, Susanne
name: Merle, Roswitha
name: Friese, Anika
name: Roesler, Uwe
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: livestock
subject: ST398
subject: aerosol chamber
subject: swine
subject: antibiotic resistance
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft und verwandte Bereiche

description: Colonized vertebrates including humans and pigs are to date the main reservoirs of livestock-associated Methicillin-resistant Staphylococcus aureus (LA-MRSA). Currently, the mechanisms underlying colonization of pigs are not fully understood. We investigated the influence of piglet pre-immune status on airborne MRSA colonization. Three groups of MRSA-negative piglets were primed and exposed to airborne LA-MRSA (104 colony forming units (cfu)/m3) in an aerosol chamber for 24 h. One group was treated intramuscularly with dexamethasone (1 mg/kg body weight) to imitate weaning stress. The second group was exposed to bacterial endotoxin containing MRSA aerosol. Both conditions play a role in the development of multifactorial diseases and may promote MRSA colonization success. The third group served as control. The piglets' MRSA status was monitored for 21 days via swab samples. At necropsy, specific tissues and organs were analyzed. Blood was collected to examine specific immunological parameters. The duration of MRSA colonization was not extended in both treated groups compared to the control group, indicating the two immune-status influencing factors do not promote MRSA colonization. Blood sample analysis confirmed a mild dexamethasone-induced immune suppression and typical endotoxin-related changes in peripheral blood. Of note, the low-dose dexamethasone treatment showed a trend of increased MRSA clearance.
การบริหารจัดการเงินกู้ยืมกองทุนหมู่บ้านเพื่อการพัฒนาครอบครัวและชุมชนอย่างยั่งยืน จังหวัดมหาสารคาม
Creators: name: พรพิมล เฉลิมมีประเสริฐ
name: ภณิตา สุนทรไชย
Publisher: name: มหาวิทยาลัยราชภัฏมหาสารคาม
Year: 2011
Subjects: กองทุนหมู่บ้าน

description: 2, 5, วารสารมหาวิทยาลัยราชภัฏมหาสารคามมนุษยศาสตร์และสังคมศาสตร์
Automatic Multi-Objective Optimization of Coarse-Grained Lipid Force Fields Using SwarmCG
Creators: name: Empereur-mot, Charly
name: Capelli, Riccardo
name: Perrone, Mattia
name: Caruso, Cristina
name: Doni, Giovanni
name: Pavan, Giovanni M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Soft Condensed Matter (cond-mat.soft)
subject: Chemical Physics (physics.chem-ph)
subject: FOS: Physical sciences

description: The development of coarse-grained (CG) molecular models typically requires a time-consuming iterative tuning of parameters in order to have the approximated CG models behaving correctly and consistently with, e.g., available higher-resolution simulation data and/or experimental observables. Automatic data-driven approaches are increasingly used to develop accurate models for molecular dynamics simulations. But the parameters obtained via such automatic methods often make use of specifically-designed interaction potentials, and are typically poorly transferable to molecular systems or conditions other than those used for training them. Using a multi-objective approach in combination with an automatic optimization engine (SwarmCG), here we show that it is possible to optimize CG models that are also transferable, obtaining optimized CG force fields (FFs). As a proof of concept, here we use lipids, for which we can avail of reference experimental data (area per lipid, bilayer thickness) and reliable atomistic simulations to guide the optimization. Once the resolution of the CG models (mapping) is set as an input, SwarmCG optimizes the parameters of the CG lipid models iteratively and simultaneously against higher-resolution simulations (bottom-up) and experimental data (top-down references). Including different types of lipid bilayers in the training set in a parallel optimization guarantees the transferability of the optimized lipid FF parameters. We demonstrate that SwarmCG can reach satisfactory agreement with experimental data for different resolution CG FFs. We also obtain stimulating insights on the precision-resolution balance of the FFs. The approach is general and can be effectively used to develop new FFs, as well as to improve existing ones.
description: This article may be downloaded for personal use only. Any other use requires prior permission of the author and AIP Publishing. This article appeared in J. Chem. Phys. 156, 024801 (2022) and may be found at https://aip.scitation.org/doi/10.1063/5.0079044
Probing the symmetry energy from the nuclear isoscaling
Creators: name: Souza, S. R.
name: Tsang, M. B.
name: Donangelo, R.
name: Lynch, W. G.
name: Steiner, A. W.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Nuclear Theory (nucl-th)
subject: Nuclear Experiment (nucl-ex)
subject: FOS: Physical sciences

description: Using different parameterizations of the nuclear mass formula, we study the sensitivity of the isoscaling parameters to the mass formula employed in grand-canonical calculations. Previous works on isoscaling have suggested that the symmetry energy implied in such calculations is anomalously smaller than that suggested by fits to nuclear masses. We show that surface corrections to the symmetry energy naturally broadens the isotopic distribution thus allowing for values of the symmetry energy which more closely match those obtained from nuclear masses.
description: 7 pages, 4 figures
CD4+ Th immunogenicity of the Ascaris spp. secreted products
Creators: name: Ebner, Friederike
name: Morrison, Eliot
name: Bertazzon, Miriam
name: Midha, Ankur
name: Hartmann, Susanne
name: Freund, Christian
name: Álvaro-Benito, Miguel
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: Ascaris spp.
subject: CD4+ Th cell
subject: immunogenicity
subject: antigens
subject: 500 Naturwissenschaften und Mathematik::570 Biowissenschaften; Biologie::572 Biochemie
subject: 600 Technik, Medizin, angewandte Wissenschaften::630 Landwirtschaft::630 Landwirtschaft und verwandte Bereiche
subject: 600 Technik, Medizin, angewandte Wissenschaften::610 Medizin und Gesundheit::616 Krankheiten

description: Ascaris spp. is a major health problem of humans and animals alike, and understanding the immunogenicity of its antigens is required for developing urgently needed vaccines. The parasite-secreted products represent the most relevant, yet complex (>250 proteins) antigens of Ascaris spp. as defining the pathogen-host interplay. We applied an in vitro antigen processing system coupled to quantitative proteomics to identify potential CD4+ Th cell epitopes in Ascaris-secreted products. This approach considerably restricts the theoretical list of epitopes using conventional CD4+ Th cell epitope prediction tools. We demonstrate the specificity and utility of our approach on two sets of candidate lists, allowing us identifying hits excluded by either one or both computational methods. More importantly, one of the candidates identified experimentally, clearly demonstrates the presence of pathogen-reactive T cells in healthy human individuals against these antigens. Thus, our work pipeline identifies the first human T cell epitope against Ascaris spp. and represents an easily adaptable platform for characterization of complex antigens, in particular for those pathogens that are not easily amenable for in vivo experimental validation.
Mean-field dynamics of a non-Hermitian Bose-Hubbard dimer
Creators: name: Graefe, E. M.
name: Korsch, H. J.
name: Niederle, A. E.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: Other Condensed Matter (cond-mat.other)
subject: FOS: Physical sciences

description: We investigate an $N$-particle Bose-Hubbard dimer with an additional effective decay term in one of the sites. A mean-field approximation for this non-Hermitian many-particle system is derived, based on a coherent state approximation. The resulting nonlinear, non-Hermitian two-level dynamics, in particular the fixed point structures showing characteristic modifications of the self-trapping transition, are analyzed. The mean-field dynamics is found to be in reasonable agreement with the full many-particle evolution.
description: 4 pages, 3 figures, published version
Pinguicula rosmarieae Casper, Bussmann & T.Henning (Lentibulariaceae), a new butterwort from the Amotape-Huancabamba Zone (northern Peru)
Creators: name: Casper, S. Jost
name: Bussmann, Rainer W.
name: Henning, Tilo
Publisher: name: Freie Universität Berlin
Year: 2020
Subjects: subject: Lentibulariaceae
subject: Pinguicula
subject: Pinguicula rosmarieae
subject: Peru
subject: Amotape-Huancabamba Zone
subject: Cordillera Central
subject: endemic
subject: taxonomy
subject: new species
subject: distribution
subject: 500 Naturwissenschaften und Mathematik::580 Pflanzen (Botanik)::580 Pflanzen (Botanik)

description: The insectivorous genus Pinguicula occurs along the whole Andean mountain chain from Colombia-Venezuela in the north to Tierra del Fuego in the south with a short interruption in the Peruvian-Chilean desert range. This paper describes a new and striking species of Pinguicula that occurs in the south-eastern part of the Amotape-Huancabamba Zone in north Peru. It grows either as a lithophyte on moist rocks or as an epiphyte on Polylepis multijuga Pilg. in the wet highlands of the Cordillera Central. Pinguicula rosmarieae Casper, Bussmann & T.Henning, sp. nov. is clearly distinguished by a basal rosette of ovate-obovate leaves spread out flat on the ground and especially by a two-partite corolla with a straight uniform tube-spur complex, two features unknown from other Andean Pinguicula species. The morphological similarity to P. calyptrata Kunth is discussed and the habitat and distribution of P. rosmarieae are characterised.
On the radar method in general-relativistic spacetimes
Creators: name: Perlick, Volker
Publisher: name: arXiv
Year: 2007
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: FOS: Physical sciences

description: If a clock, mathematically modeled by a parametrized timelike curve in a general-relativistic spacetime, is given, the radar method assigns a time and a distance to every event which is sufficiently close to the clock. Several geometric aspects of this method are reviewed and their physical interpretation is discussed.
description: Written version of talk given at 359th WE Heraeus Seminar ``Lasers, Clocks, and Drag-Free. New Technologies for Testing Relativistic Gravity in Space.'' Bremen, 2005; to appear in H. Dittus, C. L{\"a}mmerzahl, S. G. Turyshev (eds.): ``Lasers, Clocks, and Drag-Free Control. Exploration of Relativistic Gravity in Space.'' Springer, 2007
Spherical Accretion with Anisotropic Thermal Conduction
Creators: name: Sharma, Prateek
name: Quataert, Eliot
name: Stone, James M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We study the effects of anisotropic thermal conduction on magnetized spherical accretion flows using global axisymmetric MHD simulations. In low collisionality plasmas, the Bondi spherical accretion solution is unstable to the magnetothermal instability (MTI). The MTI grows rapidly at large radii where the inflow is subsonic. For a weak initial field, the MTI saturates by creating a primarily radial magnetic field, i.e., by aligning the field lines with the background temperature gradient. The saturation is quasilinear in the sense that the magnetic field is amplified by a factor of $\sim 10-30$ independent of the initial field strength (for weak fields). In the saturated state, the conductive heat flux is much larger than the convective heat flux, and is comparable to the field-free (Spitzer) value (since the field lines are largely radial). The MTI by itself does not appreciably change the accretion rate $\dot M$ relative to the Bondi rate $\dot M_B$. However, the radial field lines created by the MTI are amplified by flux freezing as the plasma flows in to small radii. Oppositely directed field lines are brought together by the converging inflow, leading to significant resistive heating. When the magnetic energy density is comparable to the gravitational potential energy density, the plasma is heated to roughly the virial temperature; the mean inflow is highly subsonic; most of the energy released by accretion is transported to large radii by thermal conduction; and the accretion rate $\dot M \ll \dot M_B$. The predominantly radial magnetic field created by the MTI at large radii in spherical accretion flows may account for the stable Faraday rotation measure towards Sgr A* in the Galactic Center.
description: accepted in MNRAS with some modifications suggested by the referee; 15 pages, 16 figures
Breakdown of half-metallic ferromagnetism in zinc-blende II-V compounds
Creators: name: Li, Yun
name: Yu, Jaejun
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: We investigated the electronic and magnetic properties of a series of zinc-blend II-V compounds by carrying out density-functional-theory calculations including spin-orbit couplings. Contrary to the case of CaN and CaP, the half-metallic characteristics of the II-V compounds such as CaSb and CaBi were found to be destroyed. Our analysis of the valence band structures of CaAs, CaSb, and CaBi revealed a critical role of the spin-orbit coupling interactions on the exchange-split band structure, thereby leading to breakdown of the half-metallic ferromagnetism for the systems with heavier group V elements in the zinc-blend II-V compounds.
Modélisations prospectives de l'occupation du sol. Le cas d'une montagne méditerranéenne
Creators: name: Paegelow, Martin
name: Villa, Nathalie
name: Cornez, Laurence
name: Ferraty, Frédéric
name: Ferré, Louis
name: Sarda, Pascal
Publisher: name: arXiv
Year: 2007
Subjects: subject: Applications (stat.AP)
subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: The authors apply three methods of prospective modelling to high resolution georeferenced land cover data in a Mediterranean mountain area: GIS approach, non linear parametric model and neuronal network. Land cover prediction to the latest known date is used to validate the models. In the frame of spatial-temporal dynamics in open systems results are encouraging and comparable. Correct prediction scores are about 73 %. The results analysis focuses on geographic location, land cover categories and parametric distance to reality of the residues. Crossing the three models show the high degree of convergence and a relative similitude of the results obtained by the two statistic approaches compared to the GIS supervised model. Steps under work are the application of the models to other test areas and the identification of respective advantages to develop an integrated model.
description: 19 pages
2020- Rapid Authentication of Extra Virgin Olive Oil using UV and FTIR Spectroscopy.pdf
Creators: name: Almoselhy, Rania I.M.
Publisher: name: figshare
Year: 2021
Subjects: subject: 60101 Analytical Biochemistry
subject: FOS: Biological sciences

description: Spectroscopic examination in the ultraviolet (UV) can provide information on the quality of an oil, its state of preservation and changes brought about by technological processes. The absorption at the wavelengths 232 nm and 270 nm in cyclohexane is due to the presence of conjugated diene and triene systems, respectively, resulting from oxidation processes and/or refining practices. These absorptions are expressed as specific extinctions conventionally indicated by K (also referred to as "extinction coefficient"). In this work, the specific extinctions at 232 nm and 270 nm in cyclohexane are calculated for a concentration of 1% w/v for extra virgin olive oil adulteration with sunflower, corn oils in their binary admixtures in different concentrations (0, 5, 15, 25 and 100% w/w). Results revealed that the adulteration will be detected easily by UV absorbance at 270 nm because sunflower oil showed a shift out of the permitted range at 15% upward higher concentrations added to extra virgin olive oil. Also, corn oil will be detected if present in 15% upward higher concentrations in blends with extra virgin olive oil. The calculated ΔK allowed the detection of adulteration in extra virgin olive oil at the concentration of 15% upward higher concentrations of adulterant sunflower and corn oils; and this is the lowest detectable value in adulterated extra virgin olive oil. Also, Fourier Transform Infrared Spectroscopy (FTIR) is used as an effective analytical tool in order to determine extra virgin olive oil adulteration with sunflower, corn oils in their binary admixtures in different concentrations (0, 5, 15, 25 and 100% w/w). A band around 2925 cm-1 along with its intensity (assigned to C–O stretching and symmetric stretching vibration of the aliphatic CH2 group) along with a very strong band along with its intensity located at 1743 cm-1 (assigned to the C=O stretching band of the ester group) were important to detect concentration of 5% adulterants SO and CO in EVOO. The present work successfully achieved its aim included in the applications of UV and FTIR spectroscopy as rapid, cheap, nondestructive, authenticity measuring tools to assess the adulteration of extra virgin olive oil with other edible oils such as corn and sunflower oils in detection limit 15% for UV and 5% for FTIR spectroscopy. Library searching in the FTIR region is a well established and powerful way which was used in comparison and matching of measured spectra.
Zero-Mode Contribution in Nucleon-Delta Transition
Creators: name: Yu, Jianghao
name: Wang, Teng
name: Ji, Chueng-Ryong
name: Ma, Bo-Qiang
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We investigate the transition form factors between nucleon and $Δ$(1232) particles by using a covariant quark-spectator-diquark field theory model in (3+1) dimensions. Performing a light-front calculation in parallel with the manifestly covariant calculation in light-front helicity basis, we examine the light-front zero-mode contribution to the helicity components of light-front good ("+") current matrix elements. Choosing the light-front gauge ($ε^+_{h=\pm}=0$) with circular polarization in Drell-Yan-West frame, we find that only the helicity components $({1\over 2}, {1\over 2})$ and $({1\over 2},-{1\over 2})$ of the good current receive the zero-mode contribution. Taking into account the zero-mode, we find the prescription independence in obtaining the light-front solution of form factors from any three helicity matrix elements with smeared light-front wavefunctions. The angular condition, which guarantees the full covariance of different schemes, is recovered.
description: 16 latex pages, 7 figures, to appear in PRD
Axion-like particle oscillations
Creators: name: Chadha-Day, Francesca
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: String theory compactifications may generate many light axion-like particles (ALPs) with weak couplings to electromagnetism. In general, a large number of ALPs may exist, with a linear combination having a potentially observable coupling to electromagnetism. The basis in which only one ALP couples to electromagnetism is in general misaligned with the mass basis. This leads to mixing between the `electromagnetic' ALP and a number of `hidden' ALPs that do not interact directly with the photon. The process is analagous to neutrino oscillations. I will discuss the phenomenological consequences of this mixing for astrophysical ALP signals, in particular showing that it may significantly reduce the predicted signal in experiments such as the CERN Axion Solar Telescope.
description: This is the Accepted Manuscript version of an article accepted for publication in Journal of Cosmology and Astroparticle Physics. IOP Publishing Ltd is not responsible for any errors in this version of the manuscript or any version derived from it. This Accepted Manuscript is published under a CC BY licence. The Version of Record is available at https://doi.org/10.1088/1475-7516/2022/01/013
The dialectics of exploitation and discrimination in the labour market : toward a Marxist theory of racial conflict
Creators: name: Whitney, Stuart B.
Publisher: name: University of British Columbia
Year: 2010

description: Since the conjoint development of capitalism and the nation-state in eighteenth century Europe, the practical and theoretical problems of socio-economic reproduction and socio-political order have confronted social scientists of all ilks as different sides of the same coin. In its infancy, sociology drew its formative inspiration from classical political economy, and long after the new discipline had carved out its own niche from the theoretical vacuum created by the rise of neoclassical economics, the dialogue between social and economic theory persisted, especially within the Marxist tradition. Nowhere is this symbiotic relationship more apparent than in the field of labour market studies. The labour market constitutes a microcosm of capitalist society where the related problems of economic reproduction and social order are manifest in their myriad, contradictory forms. One such form is the dyad of racial inequality and conflict. This thesis focuses on how racial conflict is conceived in the contemporary Marxist, neoclassical economic and Weberian literature, and examines the contribution of radical labour market theory to a Marxist theory of racial conflict. The purpose is to meet the challenge extended by a recent, neo-Weberian critique and reformulation of class theory as a unified, theoretico - methodological framework for articulating the relationship between racial groups and social classes, racial conflict and class struggle in the labour market, community, state and international system. It concludes that radical labour market theory represents an important departure from previous Marxist approaches to race and class. Theoretically, radical labour market theory breaks with Marxist tradition by distinguishing group forms of domination like discrimination, from class forms like exploitation, and by relating group and class, market and production relations to racial conflict and class struggle. Methodologically significant is the attempt to apply a non-reductionist class analysis that situates the race - class nexus in the historical context of collective struggles in a dynamic, open-ended class formation process. The implications of these theoretical and methodological directives for Marxist theories of race, class and the State are critically evaluated, and a non-reductionist model of racial conflict is proffered as a preliminary step toward a Marxist theory of inter-group conflict.
Effects of out-of-plane disorder on the nodal quasiparticle and superconducting gap in single-layer Bi$_2$Sr$_{1.6}Ln_{0.4}$CuO$_{6+δ}$ ($Ln$ = La, Nd, Gd)
Creators: name: Hashimoto, M.
name: Yoshida, T.
name: Fujimori, A.
name: Lu, D. H.
name: Shen, Z. -X.
name: Kubota, M.
name: Ono, K.
name: Ishikado, M.
name: Fujita, K.
name: Uchida, S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Superconductivity (cond-mat.supr-con)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: How out-of-plane disorder affects the electronic structure has been investigated for the single-layer cuprates Bi$_2$Sr$_{1.6}$$Ln$$_{0.4}$CuO$_{6+δ}$ ($Ln$ = La, Nd, Gd) by angle-resolved photoemission spectroscopy. We have observed that, with increasing disorder, while the Fermi surface shape and band dispersions are not affected, the quasi-particle width increases, the anti-nodal gap is enhanced and the superconducting gap in the nodal region is depressed. The results indicate that the superconductivity is significantly depressed by out-of-plane disorder through the enhancement of the anti-nodal gap and the depression of the superconducting gap in the nodal region.
Dark Twilight Joined with the Light of Dawn to Unveil the Reionization History
Creators: name: Paoletti, Daniela
name: Hazra, Dhiraj Kumar
name: Finelli, Fabio
name: Smoot, George F.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: FOS: Physical sciences

description: Improved measurement of the Cosmic Microwave Background polarization from Planck allows a detailed study of reionization beyond the average optical depth. The lower value of the optical depth disfavours an early onset and an early completion of reionization in favour of a redsfhit range where different astrophysical probes provide sensible information on the sources of reionization and the status of the intergalactic medium. In this work we extend our previous study in which we constrained reionization by combining three different probes - CMB, UV luminosity density and neutral hydrogen fraction data - in both treatment and data: we first allow variation in the UV source term varying the product of the efficiency of conversion of UV luminosity into ionizing photons and the escape fraction together with the reionization and cosmological parameters, and then we investigate the impact of a less conservative cut for the UV luminosity function. We find that the estimate for the efficiency is consistent within 95% C.L. with the fixed value we considered in our previous results and is mostly constrained by the QHII data. We find that allowing the efficiency to vary does not affect significantly our results for the average optical depth for monotonic reionization histories, recovering $τ=0.0519_{-0.0008}^{+0.0010}$ at 68% CL , consistent with our previous studies. Using a less conservative cut for the UV luminosity function, we find $τ=0.0541_{-0.0016}^{+0.0013}$ at 68% CL, due to the faint end of the luminosity function in the data we use, that also prefers a larger contribution from higher redshifts.
description: 18 pages, 20 figures, updated version to match the published one
Metabelian representations, twisted Alexander polynomials, knot slicing, and mutation
Creators: name: Herald, Chris
name: Kirk, Paul
name: Livingston, Charles
Publisher: name: arXiv
Year: 2008
Subjects: subject: Geometric Topology (math.GT)
subject: FOS: Mathematics
subject: 57M25

description: Given a knot complement X and its p-fold cyclic cover X_p, we identify twisted polynomials associated to 1-dimensional linear representations of the fundamental group of X_p with twisted polynomials associated to related p-dimensional linear representations of the fundamental group of X. This provides a simpler and faster algorithm to compute these twisted polynomials, allowing us to prove that 16 (of 18 previously unknown) algebraically slice knots of 12 or fewer crossings are not slice. We also use this improved algorithm to prove that the 24 mutants of the pretzel knot P(3,7,9,11,15), corresponding to permutations of (7,9,11,15), represent distinct concordance classes.
description: 24 pages, 1 figure
Risk Stratification of Sudden Cardiac Death – ULTIMATE: Utilising LifeMap to Investigate Malignant Arrhythmia ThErapy
Creators: name: Siddiqui, Shoaib
Publisher: name: University of Leicester
Year: 2021
Subjects: Uncategorized

description: Risk stratification of sudden cardiac death (SCD) remains a challenge. Action potential duration (APD) restitution abnormalities have been shown to be key mechanisms underlying ventricular arrhythmias (VAs) that cause SCD.The Regional Restitution Instability Index (R2I2) and Peak ECG Restitution Slope are novel ECG markers for risk stratification of SCD due to ventricular arrhythmia. They have previously identified patients with ischaemic cardiomyopathy (ICM) at high risk of VA and SCD in both retrospective and prospective studies. However, this technology, which forms part of a clinical tool termed LifeMap, currently requires an invasive approach. The aim of this work was to develop and evaluate noninvasive forms of LifeMap. A technique for programmed electrical stimulation (PES) non-invasively via the device was developed along with an exercise protocol in order to acquire digital surface ECG recordings that could be used to develop noninvasive risk markers of SCD. Special software developed in MATLAB was used to facilitate processing of raw ECG data, ECG measurements and data analysis. A technique for simplifying exercise ECG data to construct restitution curves was also developed and scripted into MATLAB. The PES protocol was successfully applied to a cohort of patients with ICM and implantable cardioverter defibrillators (ICDs) to derive measurements that confirmed the efficacy of R2I2 and PERS that has previously been seen in the prediction of SCD, even when derived using non-invasive electrical stimulation via the ICD.Non-invasive forms of R2I2 and PERS (R2I2-NI and PERS-NI) were developed and applied to the same cohort of patients. Both R2I2-NI and PERS-NI were higher in patients reaching the endpoint of VA or SCD and were predictive of VA or SCD in this patient group. Non-invasive methods of measuring APD restitution as performed by R2I2 and PERS via PES and R2I2-NI and PERS-NI via exercise have potential clinical utility as markers of SCD risk.
Three-orbital Kondo effect in single quantum dot system with plural electrons
Creators: name: Kita, Tomoko
name: Sakano, Rui
name: Ohashi, Takuma
name: Suga, Sei-ichiro
Publisher: name: arXiv
Year: 2008
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We study the Kondo effect and related transport properties in orbitally degenerate vertical quantum dot systems with plural electrons. Applying the non-crossing approximation to the three-orbital Anderson impurity model with the finite Coulomb interaction and Hund-coupling, we investigate the magnetic-field dependence of the conductance and thermopower. We also introduce an additional orbital splitting to take account of the realistic many-body effect in the vertical quantum dot system. It is clarified how the three-orbital Kondo effect influences the transport properties via the modulation of the Kondo temperature and unitary limit of transport quantities due to the change of the symmetry in the system.
description: 11 pages, 10 figures, accepted for publication in J. Phys. Soc. Jpn
2020- Applications of Differential Scanning Calorimetry (DSC) in Oils and Fats Research. A Review.pdf
Creators: name: Almoselhy, Rania I.M.
Publisher: name: figshare
Year: 2021
Subjects: subject: 60101 Analytical Biochemistry
subject: FOS: Biological sciences

description: This review is designed to be a comprehensive review in a new way to help you to understand the principle and theory of Thermal Analysis with special emphasis on Differential Scanning Calorimetry (DSC) as a new fast-growing and important technique used for authentication, characterization and detecting adulterations of oils and fats. DSC is a powerful instrument that measures the energy absorbed or released as a function of time or a controlled temperature profile. The sensor of the DSC is the heat flux plate which is designed to give superior performance and rugged reliability. The heat flux plate is capable of measuring small energy changes over the entire temperature range. Examples of measurements with DSC are Oxidative Stability, Melting Enthalpy, Glass Transition, Heat of Crystallization, Purity Determination and Heat Capacity. DSC can be used as a rapid method for assessment of oxidative stability, prediction of shelf life and evaluation of the quality of edible oils during refining. DSC holds a potential to be used as the reliable and reproducible technique for the detection of adulteration of animal body fat added in ghee individually and in combination of vegetable oil. DSC method is faster, require less sample size and no chemicals or solvents compared to other conventional, modern oxidative stability methods and conventional shelf life estimation.
Spectrum of localized states in fermionic chains with defect and adiabatic charge pumping
Creators: name: Ares, Filiberto
name: Esteve, José G.
name: Falceto, Fernando
Publisher: name: arXiv
Year: 2021
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In this paper, we study the localized states of a generic quadratic fermionic chain with finite-range couplings and an inhomogeneity in the hopping (defect) that breaks translational invariance. When the hopping of the defect vanishes, which represents an open chain, we obtain a simple bulk-edge correspondence: the zero-energy modes localized at the ends of the chain are related to the roots of a polynomial determined by the couplings of the Hamiltonian of the bulk. From this result, we define an index that characterizes the different topological phases of the system and can be easily computed by counting the roots of the polynomial. As the defect is turned on and varied adiabatically, the zero-energy modes may cross the energy gap and connect the valence and conduction bands. We analyze the robustness of the connection between bands against perturbations of the Hamiltonian. The pumping of states from one band to the other allows the creation of particle-hole pairs in the bulk. An important ingredient for our analysis is the transformation of the Hamiltonian under the standard discrete symmetries, $C$, $P$, $T$, as well as a fourth one, peculiar to our system, that is related to the existence of a gap and localized states.
description: 39 pages, 6 figures. Minor corrections. Final version published in JSTAT
HTL approach to the viscosity of quark plasma
Creators: name: Czerski, P.
name: Alberico, W. M.
name: Chiacchiera, S.
name: De Pace, A.
name: Hansen, H.
name: Molinari, A.
name: Nardi, M.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: The quark viscosity in the quark gluon plasma is evaluated in HTL approximation. The different contributions to the viscosity arising from the various components of the quark spectral function are discussed. The calculation is extended to finite values of the chemical potential.
description: 9 pages, 3 figures
Doubly Lopsided Mass Matrices from Unitary Unification
Creators: name: Barr, S. M.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: It is shown that the stratified or "doubly lopsided" mass matrix structure that is known to reproduce well the qualitative features of the quark and lepton masses and mixings can arise quite naturally in the context of grand unification based on the groups SU(N) with N > 5. An SU(8) example is constructed with the minimal anomaly-free, three-family set of fermions, in which a realistic flavor structure results without flavor symmetry.
description: 16 pages
An alternative quantum fidelity for mixed states of qudits
Creators: name: Wang, Xiaoguang
name: Yu, Chang-Shui
name: Yi, X. X.
Publisher: name: arXiv
Year: 2008
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: We give an alternative definition of quantum fidelity for two density operators on qudits in terms of the Hilbert-Schmidt inner product between them and their purity. It can be regarded as the well-defined operator fidelity for the two operators and satisfies all Jozsa's four axioms up to a normalization factor. One desire property is that it is not computationally demanding.
description: 3 pages, no figs
Y(5S): What has been learned and what can be learned
Creators: name: Blusk, S. R.
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Experiment (hep-ex)
subject: FOS: Physical sciences

description: We present recent measurements of B and B^0_s production using data collected on the Y(5S) resonance at CLEO and Belle. We also briefly discuss what can be learned using sufficiently larger data samples in the future.
description: Proceedings of The 11th Conference on B Physics at Hadron Machines (Beauty 2006), September 25-29, 2006, Keble College, Oxford. To appear in Nucl. Phys. (Proc. Suppl.) 5 pages, 4 figures
Convergence rates for Bayesian density estimation of infinite-dimensional exponential families
Creators: name: Scricciolo, Catia
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistics Theory (math.ST)
subject: FOS: Mathematics
subject: 62G20 (Primary) 62G07 (Secondary)

description: We study the rate of convergence of posterior distributions in density estimation problems for log-densities in periodic Sobolev classes characterized by a smoothness parameter p. The posterior expected density provides a nonparametric estimation procedure attaining the optimal minimax rate of convergence under Hellinger loss if the posterior distribution achieves the optimal rate over certain uniformity classes. A prior on the density class of interest is induced by a prior on the coefficients of the trigonometric series expansion of the log-density. We show that when p is known, the posterior distribution of a Gaussian prior achieves the optimal rate provided the prior variances die off sufficiently rapidly. For a mixture of normal distributions, the mixing weights on the dimension of the exponential family are assumed to be bounded below by an exponentially decreasing sequence. To avoid the use of infinite bases, we develop priors that cut off the series at a sample-size-dependent truncation point. When the degree of smoothness is unknown, a finite mixture of normal priors indexed by the smoothness parameter, which is also assigned a prior, produces the best rate. A rate-adaptive estimator is derived.
description: Published at http://dx.doi.org/10.1214/009053606000000911 in the Annals of Statistics (http://www.imstat.org/aos/) by the Institute of Mathematical Statistics (http://www.imstat.org)
Stationary ring solitons in field theory - knots and vortons
Creators: name: Radu, Eugen
name: Volkov, Mikhail S.
Publisher: name: arXiv
Year: 2008
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Other Condensed Matter (cond-mat.other)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: Pattern Formation and Solitons (nlin.PS)
subject: FOS: Physical sciences

description: We review the current status of the problem of constructing classical field theory solutions describing stationary vortex rings in Minkowski space in 3+1 dimensions. We describe the known up to date solutions of this type, such as the static knot solitons stabilized by the topological Hopf charge, the attempts to gauge them, the anomalous solitons stabilized by the Chern-Simons number, as well as the non-Abelian monopole and sphaleron rings. Passing to the rotating solutions, we first discuss the conditions insuring that they do not radiate, and then describe the spinning $Q$-balls, their twisted and gauged generalizations reported here for the first time, spinning skyrmions, and rotating monopole-antimonopole pairs. We then present the first explicit construction of global vortons as solutions of the elliptic boundary value problem, which demonstrates their non-radiating character. Finally, we describe the analogs of vortons in the Bose-Einstein condensates, analogs of spinning $Q$-balls in the non-linear optics, and also moving vortex rings in superfluid helium and in ferromagnetics.
description: 103 pages, 31 figures. Numerous modifications in the text, a strongly expanded description of Faddeev-Skyrme knots, a new section on spinning Q-balls as light bullets, many new references. To appear in Physics Reports
Probing the spin polarization of current by soft X-ray imaging of current-induced magnetic vortex dynamics
Creators: name: Kasai, Shinya
name: Fischer, Peter
name: Im, Mi-Young
name: Yamada, Keisuke
name: Nakatani, Yoshinobu
name: Kobayashi, Kensuke
name: Kohno, Hiroshi
name: Ono, Teruo
Publisher: name: arXiv
Year: 2008
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: FOS: Physical sciences

description: Time-resolved soft X-ray transmission microscopy is applied to image the current-induced resonant dynamics of the magnetic vortex core realized in a micronsized Permalloy disk. The high spatial resolution better than 25 nm enables us to observe the resonant motion of the vortex core. The result also provides the spin polarization of the current to be 0.67 +/-0.16 for Permalloy by fitting the experimental results with an analytical model in the framework of the spin-transfer torque.
description: 13 pages, 3 figures
Chrysopodes (Neosuarius) karinae Freitas and Penny 2001, Incertae Sedis
Creators: name: Tauber, Catherine
Publisher: name: Zenodo
Year: 2010
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Neuroptera
Chrysopidae
Chrysopodes
Chrysopodes karinae

description: Chrysopodes (Neosuarius) karinae Freitas and Penny, 2001, Incertae Sedis Chrysopodes (Neosuarius) karinae Freitas and Penny, 2001: 276 [description]; locality data: “Bra-SP-Jaboticabal, FCAV, 24/IV/99, Takahashi, K. M., 82♀.”; Oswald 2007 [catalog listing]. Diagnosis. Chrysopodes (N.) karinae was described from a single female specimen (the holotype); I have not seen it. According to the original description, this species is distinguished from other Chrysopodes (Neosuarius) by its dark flagellum, scapes with lateral mark, pale palpi, long pronotum, elongate, crooked spermatheca, and subanal plate with small setae and lateral pockets. Several features mentioned in the description and shown on the illustrations appear to be more consistent with subgenus Chrysopodes than Neosuarius; these features include fairly wide forewings, abdomen with a knobbed terminal sternite, and an elongate, narrow spermatheca. The description makes no mention regarding the structure of the mandibles. Until the type becomes available for study, I consider the species as “ Incertae Sedis ”. Type material.  Chrysopodes (Chrysopodes) karinae Freitas & Penny. The female holotype was reported to be deposited in the MZUSP. It is not in the collection and the authors have not yet made it available for study.
description: Published as part of Tauber, Catherine, 2010, Revision of Neosuarius, a subgenus of Chrysopodes (Neuroptera, Chrysopidae), pp. 1-104 in ZooKeys 44 (44) on page 98, DOI: 10.3897/zookeys.44.387, http://zenodo.org/record/576660
description: {"references": ["Freitas S. de, Penny ND (2001) The green lacewings (Neuroptera: Chrysopidae) of Brazilian agro-ecosystems. Proceedings of the California Academy of Sciences (4) 52: 245 - 395.", "Oswald JD (2007) Neuropterida Species of the World. Version 2.0. http: // lacewing. tamu. edu / species-catalogue /. [accessed April 1, 2008 - January 12, 2010]."]}
The bispectrum of galaxies from high-redshift galaxy surveys: primordial non-Gaussianity and non-linear galaxy bias
Creators: name: Sefusatti, Emiliano
name: Komatsu, Eiichiro
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The greatest challenge in the interpretation of galaxy clustering data from any surveys is galaxy bias. Using a simple Fisher matrix analysis, we show that the bispectrum provides an excellent determination of linear and non-linear bias parameters of intermediate and high-z galaxies, when all measurable triangle configurations down to mildly non-linear scales, where perturbation theory is still valid, are included. The bispectrum is also a powerful probe of primordial non-Gaussianity. The planned galaxy surveys at z>2 should yield constraints on non-Gaussian parameters, f_{NL}^{loc.} and f_{NL}^{eq.}, that are comparable to, or even better than, those from CMB experiments. We study how these constraints improve with volume, redshift range, as well as the number density of galaxies. Finally, we show that a halo occupation distribution may be used to improve these constraints further by lifting degeneracies between gravity, bias, and primordial non-Gaussianity.
description: 16 pages, 8 figures
The Atomic Hydrogen Content of Galaxies as a function of Group-Centric Radius
Creators: name: Hu, Wenkai
name: Cortese, Luca
name: Staveley-Smith, Lister
name: Catinella, Barbara
name: Chauhan, Garima
name: Lagos, Claudia del P.
name: Oosterloo, Tom
name: Chen, Xuelei
Publisher: name: arXiv
Year: 2021
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We apply a spectral stacking technique to Westerbork Synthesis Radio Telescope observations to measure the neutral atomic hydrogen content (HI) of nearby galaxies in and around galaxy groups at $z < 0.11$. Our sample includes 577 optically-selected galaxies (120 isolated galaxies and 457 satellites) covering stellar masses between 10$^{10}$ and 10$^{11.5}$ M$_{\odot}$, cross-matched with Yang's group catalogue, with angular and redshift positions from the Sloan Digital Sky Survey. We find that the satellites in the centres of groups have lower HI masses at fixed stellar mass and morphology (characterised by the inverse concentration index) relative to those at larger radii. These trends persist for satellites in both high-mass ($M_{\rm halo} > 10^{13.5}h^{-1}$M$_{\odot}$) and low-mass ($M_{\rm halo} \leqslant 10^{13.5}h^{-1}$M$_{\odot}$) groups, but disappear if we only consider group members in low local density ($Σ
description: 12 pages, 13 figures, 4 tables
Hyperonic neutron stars: reconciliation between nuclear properties and NICER and LIGO/VIRGO results
Creators: name: Lopes, Luiz L.
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: Using a extended version of the Quantum Hadrodynamics (QHD), I propose a new microscopic equation of state (EoS) able to correctly reproduce the main properties of symmetric nuclear matter at the saturation density, as well produce massive neutron stars and satisfactory results for the radius and the tidal parameter $Λ$. I show that even when hyperons are present, this EoS is able to reproduce at least 2.00 solar masses neutron star. The constraints about the radius of a $2.00M_\odot$ and the minimum mass that enable direct Urca effect are also checked.
description: 7 pages, 4 figures - Published version