cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
O distanciamento entre a convergência da contabilidade pública e as práticas docentes nas instituições de ensino superior
Creators: name: Fabrício Neves
name: Silva, Polyana
name: Raíssa Farias
Publisher: name: figshare
Year: 2019
Subjects: Education

description: O artigo compara o conteúdo das ementas e matrizes curriculares de Instituições de Ensino
Superior (IES), públicas e privadas com as práticas relatadas pelos docentes da disciplina de
contabilidade pública no contexto de mudança institucional. Busca investigar como a mudança
provocada pelo movimento de reforma da contabilidade pública no Brasil afeta o ensino da
disciplina, e quais as estratégias utilizadas pelos professores para trabalhar conteúdos em sala
de aula, buscando uma relação entre o processo de normatização e a prática docente. Entrevistas
com 15 docentes das cinco regiões do país foram realizadas e os conteúdos das ementas
analisados e comparados com as percepções dos entrevistados e com as diretrizes curriculares
propostas tanto pelo Conselho Federal de Contabilidade (CFC), quanto pela Fundação
Brasileira de Contabilidade (FBC). Os resultados apontam para uma baixa observação das
Normas de Contabilidade Aplicadas ao Setor Público tanto no conteúdo da disciplina específica
nas IES, quanto nas práticas educacionais dos docentes, indicando evidências de um
distanciamento entre o projeto de convergência das normas contábeis do setor público
pretendido pelos órgãos reguladores e as práticas docentes, o que implica em baixa teorização
e difusão das normas entre os futuros profissionais. O artigo discute a possibilidade de uma
análise mais ampla, alinhando a Teoria Institucional com a perspectiva da Teoria do
Comportamento Planejado. Para tanto, recomenda-se novos estudos sobre como as IES, assim
como seus profissionais, estão tratando essas mudanças em seu fluxo de trabalho.
Detection Prospects of Core-Collapse Supernovae with Supernova-Optimized Third-Generation Gravitational-wave Detectors
Creators: name: Srivastava, Varun
name: Ballmer, Stefan
name: Brown, Duncan A.
name: Afle, Chaitanya
name: Burrows, Adam
name: Radice, David
name: Vartanyan, David
Publisher: name: arXiv
Year: 2019
Subjects: subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: Instrumentation and Methods for Astrophysics (astro-ph.IM)
subject: Instrumentation and Detectors (physics.ins-det)
subject: FOS: Physical sciences

description: We optimize the third-generation gravitational-wave detector to maximize the range to detect core-collapse supernovae. Based on three-dimensional simulations for core-collapse and the corresponding gravitational-wave waveform emitted, the corresponding detection range for these waveforms is limited to within our galaxy even in the era of third-generation detectors. The corresponding event rate is two per century. We find from the waveforms that to detect core-collapse supernovae with an event rate of one per year, the gravitational-wave detectors need a strain sensitivity of 3$\times10^{-27}~$Hz$^{-1/2}$ in a frequency range from 100~Hz to 1500~Hz. We also explore detector configurations technologically beyond the scope of third-generation detectors. We find with these improvements, the event rate for gravitational-wave observations from CCSN is still low, but is improved to one in twenty years.
Spinolidia moweri Nielson 2011, sp. nov.
Creators: name: Nielson, M. W.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Insecta
Hemiptera
Cicadellidae
Spinolidia
Spinolidia moweri

description: Spinolidia moweri, sp. nov.
(Plate 5B, Figs. 283–289)
 Length. Male 7.50 mm; female unknown.
 External morphology. Medium size, robust species. General color black and yellow. Forewings with small yellow markings on veins basally, cells translucent; mesonotum and pronotum with variable size yellow markings; crown bordered by yellow line; face black with median longitudinal yellow stripe on clypeus; clypeus and clypellus bordered with yellow (Plate 5B). Head distinctly narrower than pronotum, anterior margin broadly rounded; crown broad, nearly as wide as width of eyes, produced distally about ¼ of entire length, lateral margins convergent basally, disk slightly depressed; eyes large, semiglobular; pronotum short, about as long as crown; mesonotum large, about 1/3 longer than median length of pronotum; forewings typical; clypeus long, broad, lateral margins broadly convex; clypellus short, about ½ as long as clypeus, apex expanded.
 Male genitalia. Pygofer elongate-triangulate, small digitate lobe on caudodorsal margin (Fig. 283); subgenital plate long, narrow, lobed latero-basally, few short setae apically (Fig. 284); style robust, nearly as long as aedeagus, broad in distal half in lateral view, surface striate, narrow in dorsal view (Figs. 285, 286); aedeagus long, in lateral view constricted medially and subapically, peditate in distal third, flanged apically with ventral margin lined with short setae subapically (Fig. 287), lobate apically in dorsal view (Fig. 288); connective broadly Y-shaped, membrane present, stem long, narrow (Fig. 289); dorsal connective long, strap shape, attached to base of aedeagal socle (Fig. 287).
 Material examined. Holotype male. BOLIVIA: Dpto. Cochabamba, Prov. Chapare, Incachaca, 17º14’S – 65º49’W., 7340 ft., 8-XII-2006, R. C. Mower (NMNH).
 Etymology. The name is a patronym, named for Robert C. Mower, Director of the Mosquito Abatement Division of the Utah County Health Department, who collected the specimen and who also contributed much material to the Monte L. Bean Museum, Brigham Young University.
 Remarks. This species is related to S. o sborni Nielson and can be distinguished by the flanged apex of the aedeagus.
description: Published as part of Nielson, M. W., 2011, 2953, pp. 1-85 in Zootaxa 2953 on pages 38-39
Additional file 2 of Genomic analysis of Helicobacter himalayensis sp. nov. isolated from Marmota himalayana
Creators: name: Hu, Shoukui
name: Niu, Lina
name: Wu, Lei
name: Zhu, Xiaoxue
name: Cai, Yu
name: Jin, Dong
name: Yan, Linlin
name: Zhao, Fan
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences

description: Additional file 2: Supplementary Table 2. Virulence factors genes present in genome of H.himalayensis.
The nucleation, growth and stabilization of vortex lattices
Creators: name: Penckwitt, A. A.
name: Ballagh, R. J.
name: Gardiner, C. W.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Condensed Matter (cond-mat)
subject: FOS: Physical sciences

description: We give a simple unified theory of vortex nucleation and vortex lattice formation which is valid from the initiation process up to the final stabilization of the lattice. We treat the growth of vortex lattices from a rotating thermal cloud, and their production using a rotating trap. We find results consistent with previous work on the critical velocity or critical angular velocity for vortex formation, and predict the initial number of vortices expected before their self assembly into a lattice. We show that the thermal cloud plays a crucial role in the process of vortex lattice nucleation.
description: 4 pages, 4 figures, for associated mpeg files, see http://www.physics.otago.ac.nz/bec/theory.htm; Corrected sign of gain coefficient and typos
Bellman filtering and smoothing for state-space models
Creators: name: Lange, Rutger-Jan
Publisher: name: arXiv
Year: 2020
Subjects: subject: Methodology (stat.ME)
subject: Systems and Control (eess.SY)
subject: Signal Processing (eess.SP)
subject: FOS: Computer and information sciences
subject: FOS: Electrical engineering, electronic engineering, information engineering
subject: G.3
subject: 62M20, 60G35, 93E11

description: This paper presents a new filter for state-space models based on Bellman's dynamic-programming principle, allowing for nonlinearity, non-Gaussianity and degeneracy in the observation and/or state-transition equations. The resulting Bellman filter is a direct generalisation of the (iterated and extended) Kalman filter, enabling scalability to higher dimensions while remaining computationally inexpensive. It can also be extended to enable smoothing. Under suitable conditions, the Bellman-filtered states are stable over time and contractive towards a region around the true state at every time step. Static (hyper)parameters are estimated by maximising a filter-implied pseudo log-likelihood decomposition. In univariate simulation studies, the Bellman filter performs on par with state-of-the-art simulation-based techniques at a fraction of the computational cost. In two empirical applications, involving up to 150 spatial dimensions or highly degenerate/nonlinear state dynamics, the Bellman filter outperforms competing methods in both accuracy and speed.
description: 60 pages
Signatures of Supersymmetry in B Decays - A Theoretical Perspective
Creators: name: Ali, A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We discuss precision tests of the standard model in radiative and semileptonic rare B-decays and CP-violating asymmetries, and possible signatures of supersymmetry in these processes. Motivated by current data, and with an eye on the forthcoming measurements, we restrict ourselves to the processes in which the bench marks set by the standard model have either been met by ongoing experiments or are expected to be met shortly. This includes the mixing-induced CP asymmetry, measured through $\sin 2 β$, and branching ratios for the radiative and semileptonic rare decays $B \to X_s γ$, $B \to K^* γ$, $B \to X_s \ell^+ \ell^-$ and $B \to (K,K^*) \ell^+ \ell^-$, where $\ell^\pm =e^\pm, μ^\pm$.
description: 19 pages, 5 figures (requires sprocl.sty and epsf); invited talk, to be published in the proceedings of the International Conference on Flavor Physics ICFP2001, Zhang-Jia-Jie City, Peoples Republic of China, May 31 - June 6, 2001
Non-uniform Recovery Guarantees for Binary Measurements and Infinite-Dimensional Compressed Sensing
Creators: name: Thesing, L.
name: Hansen, A. C.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
Sampling theory
Compressed sensing
Structured sparsity
Wavelets
Walsh functions
Hadamard transform
42C10
42C40
94A12
94A20

description: Abstract: Due to the many applications in Magnetic Resonance Imaging (MRI), Nuclear Magnetic Resonance (NMR), radio interferometry, helium atom scattering etc., the theory of compressed sensing with Fourier transform measurements has reached a mature level. However, for binary measurements via the Walsh transform, the theory has long been merely non-existent, despite the large number of applications such as fluorescence microscopy, single pixel cameras, lensless cameras, compressive holography, laser-based failure-analysis etc. Binary measurements are a mainstay in signal and image processing and can be modelled by the Walsh transform and Walsh series that are binary cousins of the respective Fourier counterparts. We help bridging the theoretical gap by providing non-uniform recovery guarantees for infinite-dimensional compressed sensing with Walsh samples and wavelet reconstruction. The theoretical results demonstrate that compressed sensing with Walsh samples, as long as the sampling strategy is highly structured and follows the structured sparsity of the signal, is as effective as in the Fourier case. However, there is a fundamental difference in the asymptotic results when the smoothness and vanishing moments of the wavelet increase. In the Fourier case, this changes the optimal sampling patterns, whereas this is not the case in the Walsh setting.
The chemistry of stars in the bar of the Milky Way
Creators: name: Wegg, C.
name: Rojas-Arriagada, A.
name: Schultheis, M.
name: Gerhard, O.
Publisher: name: arXiv
Year: 2019
Subjects: subject: Astrophysics of Galaxies (astro-ph.GA)
subject: FOS: Physical sciences

description: We use a sample of 938 red clump giant stars located in the direction of the galactic long bar to study the chemistry of Milky Way bar stars. Kinematically separating stars on bar orbits from stars with inner disc orbits, we find that stars on bar-like orbits are more metal rich with a mean iron abundance of =+0.30 compared to =+0.03 for the inner disc. Spatially selecting bar stars is complicated by a strong vertical metallicity gradient of -1.1dex/kpc, but we find the metallicity distribution varies in a manner consistent with our orbital selection. Our results have two possible interpretations. The first is that the most metal rich stars in the inner Galaxy pre-existed the bar, but were kinematically cold at the time of bar formation and therefore more easily captured onto bar orbits when the bar formed. The second is that the most metal rich stars formed after the bar, either directly onto the bar following orbits or were captured by the bar after their formation.
description: 7 pages, 6 figures. Accepted by A&A
Two-dimensional topological solitons in rectangular magnetic dots
Creators: name: Metlov, Konstantin L.
Publisher: name: arXiv
Year: 2001
Subjects: subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: A general approach allowing to find the analytical expressions for equilibrium magnetic structures in small and flat magnetic nano-sized cylinders of arbitrary shape made of soft magnetic material is presented. The resulting magnetization distributions are two-dimensional topological solitons and have a non-zero topological charge. The approach is illustrated here on an example of a thin rectangular particle.
description: 3 pages, 2 figures, RevTex, for SCM2001 (Seeheim, Germany, 2001), satellite of JEMS'01 conference
3D-3D Correspondence from Seifert Fibering Operators
Creators: name: Fan, Yale
Publisher: name: arXiv
Year: 2020
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: Using recently developed Seifert fibering operators for 3D $\mathcal{N} = 2$ gauge theories, we formulate the necessary ingredients for a state-integral model of the topological quantum field theory dual to a given Seifert manifold under the 3D-3D correspondence, focusing on the case of Seifert homology spheres with positive orbifold Euler characteristic. We further exhibit a set of difference operators that annihilate the wavefunctions of this TQFT on hyperbolic three-manifolds, generalizing similar constructions for lens space partition functions and holomorphic blocks. These properties offer intriguing clues as to the structure of the underlying TQFT.
description: 80 pages, comments welcome; v2: minor improvements, approximates published version
Additional file 2 of Life satisfaction in families with a child in an Unresponsive Wakefulness Syndrome
Creators: name: Chadasch, Christiane
name: Kotchoubey, Boris
Publisher: name: figshare
Year: 2021
Subjects: subject: Medicine
subject: Molecular Biology
subject: Evolutionary Biology
subject: FOS: Biological sciences
subject: Sociology
subject: FOS: Sociology
subject: 69999 Biological Sciences not elsewhere classified
subject: Science Policy

description: Additional file 2. Supplement 2. Frequency tables.
Investigating the relationship between diffusion kurtosis tensor imaging (DKTI) and histology within the normal human brain
Creators: name: Maiter, Ahmed
name: Riemer, Frank
name: Allinson, Kieren
name: Zaccagna, Fulvio
name: Crispin-Ortuzar, Mireia
name: Gehrung, Marcel
name: McLean, Mary A.
name: Priest, Andrew N.
name: Grist, James
name: Matys, Tomasz
name: Graves, Martin J.
name: Gallagher, Ferdia A.
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Article
/692/308/575
/692/698/1688/64
article

description: Funder: CRUK and EPSRC Cancer Imaging Centre in Cambridge and Manchester; doi: http://dx.doi.org/10.13039/501100014679
description: Funder: Engineering and Physical Sciences Research Council; doi: http://dx.doi.org/10.13039/501100000266
description: Funder: CRUK Cambridge Centre
description: Funder: Addenbrooke's Charitable Trust, Cambridge University Hospitals; doi: http://dx.doi.org/10.13039/501100002927
description: Funder: National Institute for Health Research (NIHR) Comprehensive Biomedical Research Centre (BRC)
description: Funder: Experimental Cancer Medicine Centre (ECMC)
description: Funder: The Lundbeck Foundation
description: Funder: Evelyn Trust; doi: http://dx.doi.org/10.13039/501100004282
description: Funder: Mark Foundation for Integrative Cancer Research
description: Abstract: Measurements of water diffusion with MRI have been used as a biomarker of tissue microstructure and heterogeneity. In this study, diffusion kurtosis tensor imaging (DKTI) of the brain was undertaken in 10 healthy volunteers at a clinical field strength of 3 T. Diffusion and kurtosis metrics were measured in regions-of-interest on the resulting maps and compared with quantitative analysis of normal post-mortem tissue histology from separate age-matched donors. White matter regions showed low diffusion (0.60 ± 0.04 × 10–3 mm2/s) and high kurtosis (1.17 ± 0.06), consistent with a structured heterogeneous environment comprising parallel neuronal fibres. Grey matter showed intermediate diffusion (0.80 ± 0.02 × 10–3 mm2/s) and kurtosis (0.82 ± 0.05) values. An important finding is that the subcortical regions investigated (thalamus, caudate and putamen) showed similar diffusion and kurtosis properties to white matter. Histological staining of the subcortical nuclei demonstrated that the predominant grey matter was permeated by small white matter bundles, which could account for the similar kurtosis to white matter. Quantitative histological analysis demonstrated higher mean tissue kurtosis and vector standard deviation values for white matter (1.08 and 0.81) compared to the subcortical regions (0.34 and 0.59). Mean diffusion on DKTI was positively correlated with tissue kurtosis (r = 0.82, p < 0.05) and negatively correlated with vector standard deviation (r = -0.69, p < 0.05). This study demonstrates how DKTI can be used to study regional structural variations in the cerebral tissue microenvironment and could be used to probe microstructural changes within diseased tissue in the future.
Statistical ensembles and density of states
Creators: name: Kostrykin, Vadim
name: Schrader, Robert
Publisher: name: arXiv
Year: 2001
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: We propose a definition of microcanonical and canonical statistical ensembles based on the concept of density of states. This definition applies both to the classical and the quantum case. For the microcanonical case this allows for a definition of a temperature and its fluctuation, which might be useful in the theory of mesoscopic systems. In the quantum case the concept of density of states applies to one-particle Schroedinger operators, in particular to operators with a periodic potential or to random Anderson type models. In the case of periodic potentials we show that for the resulting $n$-particle system the density of states is $[(n-1)/2]$ times differentiable, such that like for classical microcanonical ensembles a (positive) temperature may be defined whenever $n\geq 5$. We expect that a similar result should also hold for Anderson type models. We also provide the first terms in asymptotic expansions of thermodynamic quantities at large energies for the microcanonical ensemble and at large temperatures for the canonical ensemble. A comparison shows that then both formulations asymptotically give the same results.
description: MSC-class: 47A40, 82B10 (Primary) 82B05, 82D20 (Secondary)
Independent transversals in bipartite correspondence-covers
Creators: name: Cambie, Stijn
name: Kang, Ross J.
Publisher: name: arXiv
Year: 2020
Subjects: subject: Combinatorics (math.CO)
subject: FOS: Mathematics
subject: 05C15, 05C35, 05D05

description: Suppose $G$ and $H$ are bipartite graphs and $L: V(G)\to 2^{V(H)}$ induces a partition of $V(H)$ such that the subgraph of $H$ induced between $L(v)$ and $L(v')$ is a matching whenever $vv'\in E(G)$. We show for each $\varepsilon>0$ that, if $H$ has maximum degree $D$ and $|L(v)| \ge (1+\varepsilon)D/\log D$ for all $v\in V(G)$, then $H$ admits an independent transversal with respect to $L$, provided $D$ is sufficiently large. This bound on the part sizes is asymptotically sharp up to a factor $2$. We also show some asymmetric variants of this result.
description: 14 pages; v2 added asymmetric version of Haxell's theorem, accepted to Canadian Mathematical Bulletin
$(g-2)_μ$ and CP Asymmetries in $B^0_{d,s} \to l^+ l^-$ and $b \to s γ$ in SUSY models
Creators: name: Huang, Chao-Shang
name: Liao, Wei
Publisher: name: arXiv
Year: 2002
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We show that with a good fit to the muon $g-2$ constraint, the CP asymmetry can be as large as 25% (15%) for $B^0_d \to τ^+ τ^-$ ($B^0_d \to μ^+ μ^-$) in SUGRA models with nonuniversal gaugino masses and MSSM. If tau events indentified at B factories the CP asymmetry in $B^0_d \to τ^+τ^-$ can be a powerful probe on physics beyond SM. An interesting case is that new physics gives a prediction on the branching ratio which is still in the uncertain region of the SM prediction. The CP asymmetry for $B^0_d \to l^+ l^-$ in this case can still reach 20%. So it is powerful to shed light on physics beyond SM while the CP asymmetry of $b \to s γ$ in this case can only reach 2% at most which is too small to draw a definite conclusion on new physics effects at B factories.
description: discussions extended, version to appear in PLB
How Massive Single Stars End their Life
Creators: name: Heger, A.
name: Fryer, C. L.
name: Woosley, S. E.
name: Langer, N.
name: Hartmann, D. H.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: How massive stars die -- what sort of explosion and remnant each produces -- depends chiefly on the masses of their helium cores and hydrogen envelopes at death. For single stars, stellar winds are the only means of mass loss, and these are chiefly a function of the metallicity of the star. We discuss how metallicity, and a simplified prescription for its effect on mass loss, affects the evolution and final fate of massive stars. We map, as a function of mass and metallicity, where black holes and neutron stars are likely to form and where different types of supernovae are produced. Integrating over an initial mass function, we derive the relative populations as a function of metallicity. Provided single stars rotate rapidly enough at death, we speculate upon stellar populations that might produce gamma-ray bursts and jet-driven supernovae.
description: 24 pages, 9 figues, submitted to ApJ
Electronic supplementary material from 'Metformin and risk of Alzheimer’s disease among community-dwelling people with diabetes: a national case-control study'
Creators: name: Sluggett, Janet
name: Koponen, Marjaana
name: J. Simon Bell
name: Taipale, Heidi
name: Tanskanen, Antti J.
name: Tiihonen, Jari
name: Uusitupa, Matti
name: Anna-Maija Tolppanen
name: Hartikainen, Sirpa
Publisher: name: Monash University
Year: 2019
Subjects: subject: 111503 Clinical Pharmacy and Pharmacy Practice
subject: FOS: Clinical medicine
subject: 110306 Endocrinology
subject: 111706 Epidemiology
subject: FOS: Health sciences
subject: 110308 Geriatrics and Gerontology
subject: Health Care
subject: 110904 Neurology and Neuromuscular Diseases

description: Electronic supplementary material (Table 1) for manuscript titled 'Metformin and risk of Alzheimer’s disease among community-dwelling people with diabetes: a national case-control study'
The geometrically m-step solvable Grothendieck conjecture for genus 0 curves over finitely generated fields
Creators: name: Yamaguchi, Naganori
Publisher: name: arXiv
Year: 2020
Subjects: subject: Algebraic Geometry (math.AG)
subject: FOS: Mathematics

description: In this paper, we present some partial results for the geometrically m-step solvable Grothendieck conjecture in anabelian geometry. Among other things, we prove the geometrically 3-step solvable Grothendieck conjecture for genus 0 curves over fields finitely generated over the prime field of arbitrary characteristic.
Hoho Lowry & Fenwick 1983
Creators: name: HUGHES, L. E.
Publisher: name: Zenodo
Year: 2011
Subjects: Biodiversity
Taxonomy
Animalia
Arthropoda
Malacostraca
Amphipoda
Maeridae
Hoho

description: Hoho Lowry & Fenwick, 1983
 Diagnosis. Modified after Lowry & Fenwick (1983). Head well developed eyes, with check notch/slit with rounded or subacute anteroventral corner; antenna 1 accessory flagellum short to minute; manidbular palp l-articulate, article 1 not distally swollen; maxillipedal palp distomedial flap on the third article; urosomite 1 dorsally bicarinate; rami of uropod 3 as short as peduncle; epimeron 3 smooth on lower posterior margin. The genus Hoho includes 10 species: H. carteta (J.L. Barnard, 1972); H. cornishi Hughes & Lowry, 2006; H. fenwicki sp. nov.; H. hirtipalma Lowry & Fenwick, 1983; H. kalbarri sp. nov.; H. kangarooensis sp. nov.; H. lowryi sp. nov.; H. marilla (J.L. Barnard, 1972); H. tricarinata sp. nov. and H. wittecarra sp. nov. New records in this study increase the range of the genus Hoho to Tasmania.
description: Published as part of HUGHES, L. E., 2011, New species of Hoho, Mallacoota and Parelasmopus (Maeridae: Amphipoda) from Australian waters, pp. 1-79 in Zootaxa 2955 (1) on page 5, DOI: 10.11646/zootaxa.2955.1.1, http://zenodo.org/record/10095686
Testing Simultaneous Diagonalizability
Creators: name: Xu, Yuchen
name: Düker, Marie-Christine
name: Matteson, David S.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Methodology (stat.ME)
subject: FOS: Computer and information sciences

description: This paper proposes novel methods to test for simultaneous diagonalization of possibly asymmetric matrices. Motivated by various applications, a two-sample test as well as a generalization for multiple matrices are proposed. A partial version of the test is also studied to check whether a partial set of eigenvectors is shared across samples. Additionally, a novel algorithm for the considered testing methods is introduced. Simulation studies demonstrate favorable performance for all designs. Finally, the theoretical results are utilized to decouple vector autoregression models into multiple univariate time series, and to test for the same stationary distribution in recurrent Markov chains. These applications are demonstrated using macroeconomic indices of 8 countries and streamflow data, respectively.
description: 35 pages, 7 figures
Correlated electrons and generalized statistics
Creators: name: Wang, Qiuping A.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: Several important generalizations of Fermi-Dirac distribution are compared to numerical and experimental results for correlated electron systems. It is found that the quantum distributions based on incomplete information hypothesis can be useful for describing this kind of systems. We show that the additive incomplete fermion distribution gives very good description of weakly correlated electrons and that the nonadditive one is suitable to very strong correlated cases.
description: 13 pages, RevTex file, 4 ps figures. The European Physical Journal B (2002), in press
Kitaev Magnetism and Fractionalized Excitations in Double Perovskite Sm2ZnIrO6
Creators: name: Singh, Birender
name: Vogl, M.
name: Wurmehl, S.
name: Aswartham, S.
name: Büchner, B.
name: Kumar, Pradeep
Publisher: name: arXiv
Year: 2019
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: The quest for Kitaev spin liquids in particular three dimensional solids is long sought goal in condensed matter physics, as these states may give rise to exotic new types of quasi-particle excitations carrying fractional quantum numbers namely Majorana Fermionic excitations. Here we report the experimental signature of this characteristic feature of the Kitaev spin liquid via Raman measurements. Sm2ZnIrO6 is a strongly spin orbit coupled Mott insulator, where Jeff = 1/2 controls the physics, which provide striking evidence for this characteristic feature of the Kitaev spin liquid. As the temperature is lowered, we find that the spin excitations form a continuum in contrast to the conventional sharp modes expected in ordered antiferromagnets. Our observation of a broad magnetic continuum and anomalous renormalization of the phonon self-energy parameters evidence the existence of Majorana fermions from spin fractionalization in double perovskites structure as theoretically conjectured in a Kitaev-Heisenberg geometrically frustrated double perovskite systems.
An exploration of the genetic epidemiology of non-suicidal self-harm and suicide attempt
Creators: name: Russell, Abigail Emma
name: Hemani, Gibran
name: Jones, Hannah J
name: Ford, Tamsin
name: Gunnell, David
name: Heron, Jon
name: Joinson, Carol
name: Moran, Paul
name: Relton, Caroline
name: Suderman, Matthew
name: Watkins, Sarah
name: Mars, Becky
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: Research Article
Causes, treatment and prevention of suicide
Suicide, self-harm, non-suicidal self-injury
Genetic epidemiology
Polygenic risk scores

description: Abstract: Background: Empirical evidence supporting the distinction between suicide attempt (SA) and non-suicidal self-harm (NSSH) is lacking. Although NSSH is a risk factor for SA, we do not currently know whether these behaviours lie on a continuum of severity, or whether they are discrete outcomes with different aetiologies. We conducted this exploratory genetic epidemiology study to investigate this issue further. Methods: We explored the extent of genetic overlap between NSSH and SA in a large, richly-phenotyped cohort (the Avon Longitudinal Study of Parents and Children; N = 4959), utilising individual-level genetic and phenotypic data to conduct analyses of genome-wide complex traits and polygenic risk scores (PRS). Results: The single nucleotide polymorphism heritability of NSSH was estimated to be 13% (SE 0.07) and that of SA to be 0% (SE 0.07). Of the traits investigated, NSSH was most strongly correlated with higher IQ (rG = 0.31, SE = 0.22), there was little evidence of high genetic correlation between NSSH and SA (rG = − 0.1, SE = 0.54), likely due to the low heritability estimate for SA. The PRS for depression differentiated between those with NSSH and SA in multinomial regression. The optimal PRS prediction model for SA (Nagelkerke R2 0.022, p < 0.001) included ADHD, depression, income, anorexia and neuroticism and explained more variance than the optimal prediction model for NSSH (Nagelkerke R2 0.010, p < 0.001) which included ADHD, alcohol consumption, autism spectrum conditions, depression, IQ, neuroticism and suicide attempt. Conclusions: Our findings suggest that SA does not have a large genetic component, and that although NSSH and SA are not discrete outcomes there appears to be little genetic overlap between the two. The relatively small sample size and resulting low heritability estimate for SA was a limitation of the study. Combined with low heritability estimates, this implies that family or population structures in SA GWASs may contribute to signals detected.
Electronic decay process spectra including nuclear degrees of freedom
Creators: name: Riegel, Alexander
name: Fasshauer, Elke
Publisher: name: arXiv
Year: 2021
Subjects: subject: Chemical Physics (physics.chem-ph)
subject: Atomic and Molecular Clusters (physics.atm-clus)
subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: In the field of chemistry, where nuclear motion has traditionally been a focal point, we now explore the ultra-rapid electronic motion spanning attoseconds to femtoseconds, demonstrating that it is equally integral and relevant to the discipline. The advent of ultrashort attosecond pulse technology has revolutionized our ability to directly observe electronic rearrangements in atoms and molecules, offering a time-resolved insight into these swift processes. Prominent examples include Auger-Meitner decay and Interparticle Coulombic Decay (ICD). However, the real challenge lies in interpreting these observations, where theoretical models are indispensable.
 Building upon the analytical framework introduced in Phys. Rev. A 101, 043414 (2020), which analyzed the spectra of electrons emitted during electronic decay processes from a purely electronic perspective, our paper represents a significant advancement. We extend this theoretical base to include nuclear dynamics, utilizing the Born-Oppenheimer approximation to deepen our understanding of the intricate interaction between electronic and nuclear motion in these processes.
 We illustrate the impact of incorporating nuclear degrees of freedom in several theoretical cases characterized by different numbers of vibrational bound states in both the electronic resonance and the electronic final state. This approach not only clarifies complex spectral features and unusual peak shapes but also demonstrates a method for extracting the energy differences between multiple vibrational resonance states through their distinctive interference patterns.
description: 23 pages, 14 figures
Water quality of Narai canal and Balu river of Dhaka City: An impact of industrialization
Creators: name: Roy, S.
name: Banna, L. N.
name: Hossain, M.
name: Rahman, H.
name: Roy, S.
name: Banna, L. N.
name: Hossain, M.
name: Rahman, H.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Crop Production/Industries
subject: Industrial effluent
subject: Waste water
subject: Pollution
subject: TDS
subject: NH4

description: Rapid industrialization around riverside without having proper environmental consideration causes severe water pollution in our country. On accordance with the consecution of this problem the study was conducted to investigate the water quality of Narai canal and Balu river during January to June, 2012. Water quality parameter analysis i.e. color, odor, pH, total dissolved solids (TDS), dissolved oxygen (DO), ammonium (NH4) results show that except pH all exceeded standard limit for domestic water use, irrigation and fish cultivation. The minimum and maximum values of pH, TDS, DO and NH4 were 6.89-7.33, 982-1308 ppm, 0.33-2.12 ppm and 6.79-89.76 ppm, respectively. Present analysis with secondary research data also revealed that this pollution rate is becoming intensified quickly which may pose a great threat in future for human health, ecosystem and sustainable agricultural production. So, Effluent Treatment Plants (ETP) is urgently needed to minimize the concentration of pollutants and ultimately to save the river water of the concerned area.
Comparative Surveys of Fertility in Latin America: San José, Costa Rica
Creators: name: Knowledge, Attitudes And Practices Surveys (KAPS)
Publisher: name: Roper Center for Public Opinion Research
Year: 2022

description: Attitudes toward family planning, abortion; appropriate average family size; ideal number of children; religiosity; condition of health; plans for the future; belief in the concept of fate; desire for additional or fewer children; ideal age for marriage, time for first birth, interval between births; hopes and fears for Costa Rica; role of religion in life; rapidity of, advisable rate of Costa Rican growth; educational aspirations; lifestyle at home (i.e., expensive purchases, childrearing practices, role of husband); greatest obstacle in life; length of residence in present locale; strength of desire to remain in Costa Rica; TV watching, radio listening habits; frequency of reading newspapers and magazines.
Behavioural Measures of Infant Activity but Not Attention Associate with Later Preschool ADHD Traits
Creators: name: Goodwin, Amy
name: Hendry, Alexandra
name: Mason, Luke
name: Bazelmans, Tessel
name: Begum Ali, Jannath
name: Pasco, Greg
name: Charman, Tony
name: Jones, Emily
name: Johnson, Mark
name: Team, The BASIS/STAARS
Publisher: name: Apollo - University of Cambridge Repository
Year: 2021
Subjects: ADHD
infant
attention
activity level

description: Funder: MQ: Transforming Mental Health; Grant(s): MQ14PP_83
description: Mapping infant neurocognitive differences that precede later ADHD-related behaviours is critical for designing early interventions. In this study, we investigated (1) group differences in a battery of measures assessing aspects of attention and activity level in infants with and without a family history of ADHD or related conditions (ASD), and (2) longitudinal associations between the infant measures and preschool ADHD traits at 3 years. Participants (N = 151) were infants with or without an elevated likelihood for ADHD (due to a family history of ADHD and/or ASD). A multi-method assessment protocol was used to assess infant attention and activity level at 10 months of age that included behavioural, cognitive, physiological and neural measures. Preschool ADHD traits were measured at 3 years of age using the Child Behaviour Checklist (CBCL) and the Child Behaviour Questionnaire (CBQ). Across a broad range of measures, we found no significant group differences in attention or activity level at 10 months between infants with and without a family history of ADHD or ASD. However, parent and observer ratings of infant activity level at 10 months were positively associated with later preschool ADHD traits at 3 years. Observable behavioural differences in activity level (but not attention) may be apparent from infancy in children who later develop elevated preschool ADHD traits.
Decompositions of finite high-dimensional random arrays
Creators: name: Dodos, Pandelis
name: Tyros, Konstantinos
name: Valettas, Petros
Publisher: name: arXiv
Year: 2021
Subjects: subject: Probability (math.PR)
subject: Combinatorics (math.CO)
subject: FOS: Mathematics

description: A $d$-dimensional random array on a nonempty set $I$ is a stochastic process $\boldsymbol{X}=\langle X_s:s\in \binom{I}{d}\rangle$ indexed by the set $\binom{I}{d}$ of all $d$-element subsets of $I$. We obtain structural decompositions of finite, high-dimensional random arrays whose distribution is invariant under certain symmetries.
 Our first main result is a distributional decomposition of finite, (approximately) spreadable, high-dimensional random arrays whose entries take values in a finite set; the two-dimensional case of this result is the finite version of an infinitary decomposition due to Fremlin and Talagrand. Our second main result is a physical decomposition of finite, spreadable, high-dimensional random arrays with square-integrable entries that is the analogue of the Hoeffding/Efron--Stein decomposition. All proofs are effective.
 We also present applications of these decompositions in the study of concentration of functions of finite, high-dimensional random arrays.
Effects of arsenic and moisture regime on nutrient content and their uptake by NERICA rice
Creators: name: Bhattacherjee, S.
name: Chowdhury, M. A. H.
name: Rahman, M. H.
name: Saha, B. K.
name: Bhattacherjee, S.
name: Chowdhury, M. A. H.
name: Rahman, M. H.
name: Saha, B. K.
Publisher: name: Unknown
Year: 2014
Subjects: subject: Crop Production/Industries
subject: Arsenic level
subject: Moisture regime
subject: Rice varieties
subject: Nutrient contents
subject: Uptake

description: A pot experiment was carried out in the net house of Bangladesh Institute of Nuclear Agriculture (BINA) to study nutrient content and their uptake by different rice varieties (NERICA-1, NERICA-10 and BRRI dhan48) in response to different levels of arsenic (As) under varying moisture regimes. Three levels of As were added viz. 0, 30, 60 ppm to the pot soil from sodium arsenate (Na2HAsO4. 7H2O). After establishment of crops the moisture level of soil was adjusted to maintain flooded, 50% and 100% field capacity condition during crop growing period. The experiment was laid out in a Completely Randomized Design (CRD), with three replications. The amount of N, P, K, S and Zn was calculated as per their rate of application and was applied to the individual pot. Higher levels of As adversely affected the nutrient content and their uptake by rice except N contents. Nitrogen content increased with the increase of As level. Higher amount of nutrient content and uptake was recorded in BRRI dhan48 and flood condition enhanced higher nutrient content as well as uptake by rice. This study suggests the possible management of moisture regime and considering less As susceptible variety, which might reduce the toxic effects of As on nutrient uptake.
Mechanisms for Non-Trivial Magnetization Plateaux of an S=1 Frustrated Spin Ladder
Creators: name: Okamoto, Kiyomi
name: Okazaki, Nobuhisa
name: Sakai, Tôru
Publisher: name: arXiv
Year: 2001
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Statistical Mechanics (cond-mat.stat-mech)
subject: FOS: Physical sciences

description: We investigate the non-trivial magnetization plateau at 1/4 of the saturation magnetization of S=1 spin ladder, especially with reference to recent experimental results on a new organic tetraradical 3,3',5,5'-tetrakis(N-tert-butylaminoxyl)biphenyl, abbreviated as BIP-TENO. We propose three mechanisms for the formation of the plateau; the Neel mechanism, the dimer mechanism and the spin-Peierls mechanism. We also discuss the effect of four-spin exchange interactions.
description: 3 pages, 5 figures, Orbital2001 (International Conference on Strongly Correlated Electrons with Orbital Degrees of Freedom) (September 11-14, 2001. Sendai)
NetKet: A Machine Learning Toolkit for Many-Body Quantum Systems
Creators: name: Carleo, Giuseppe
name: Choo, Kenny
name: Hofmann, Damian
name: Smith, James E. T.
name: Westerhout, Tom
name: Alet, Fabien
name: Davis, Emily J.
name: Efthymiou, Stavros
name: Glasser, Ivan
name: Lin, Sheng-Hsuan
name: Mauri, Marta
name: Mazzola, Guglielmo
name: Mendl, Christian B.
name: van Nieuwenburg, Evert
name: O'Reilly, Ossian
name: Théveniaut, Hugo
name: Torlai, Giacomo
name: Wietek, Alexander
Publisher: name: arXiv
Year: 2019
Subjects: subject: Quantum Physics (quant-ph)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: Computational Physics (physics.comp-ph)
subject: Data Analysis, Statistics and Probability (physics.data-an)
subject: FOS: Physical sciences

description: We introduce NetKet, a comprehensive open source framework for the study of many-body quantum systems using machine learning techniques. The framework is built around a general and flexible implementation of neural-network quantum states, which are used as a variational ansatz for quantum wave functions. NetKet provides algorithms for several key tasks in quantum many-body physics and quantum technology, namely quantum state tomography, supervised learning from wave-function data, and ground state searches for a wide range of customizable lattice models. Our aim is to provide a common platform for open research and to stimulate the collaborative development of computational methods at the interface of machine learning and many-body physics.
Lazy FSCA for Unsupervised Variable Selection
Creators: name: Zocco, Federico
name: Maggipinto, Marco
name: Susto, Gian Antonio
name: McLoone, Seán
Publisher: name: arXiv
Year: 2021
Subjects: subject: Machine Learning (cs.LG)
subject: FOS: Computer and information sciences

description: Various unsupervised greedy selection methods have been proposed as computationally tractable approximations to the NP-hard subset selection problem. These methods rely on sequentially selecting the variables that best improve performance with respect to a selection criterion. Theoretical results exist that provide performance bounds and enable "lazy greedy" efficient implementations for selection criteria that satisfy a diminishing returns property known as submodularity. This has motivated the development of variable selection algorithms based on mutual information and frame potential. Recently, the authors introduced Forward Selection Component Analysis (FSCA) which uses variance explained as its selection criterion. While this criterion is not submodular, FSCA has been shown to be highly effective for applications such as measurement plan optimisation. In this paper a "lazy" implementation of the FSCA algorithm (L-FSCA) is proposed, which, although not equivalent to FSCA due to the absence of submodularity, has the potential to yield comparable performance while being up to an order of magnitude faster to compute. The efficacy of L-FSCA is demonstrated by performing a systematic comparison with FSCA and five other unsupervised variable selection methods from the literature using simulated and real-world case studies. Experimental results confirm that L-FSCA yields almost identical performance to FSCA while reducing computation time by between 22% and 94% for the case studies considered.
description: Submitted to Engineering Applications of Artificial Intelligence. This second version is more focused on the lazy implementation of FSCA as visible from the new title; further experiments are also added
Parsec--scale radio jets in gamma--ray loud sources
Creators: name: Venturi, T.
name: Dallacasa, D.
Publisher: name: arXiv
Year: 2002
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We will present a multiepoch study of the three blazars 0954+658 (BL--Lac), PKS1510--089 (HPQ) and 1749+096 (BL--Lac). The first two sources are known to be $γ$--ray loud. Our study is based on milliarcsecond resolution polarimetric observations carried out with the VLBA at 8.4 GHz. The observations took place between January 1999 and May 2001. Superluminal motion is detected along the jet of PKS1510--089 and 1749+096, with $β_{app} \sim 10$ for all features. Magnetic field structure is revealed along the jets of 0954+658 and PKS 1510--089. The polarisation properties of the parsec--scale jets remain stationary in all sources, regardless of their total flux density variability in the radio band and of the presence of superluminal features.
description: 4 pages, 3 figures, to appear in the proceedings of the connference "Relativistic jets in the Chandra and XMM era", Bologna, 23-27/9/02 (New Astr. Rev.)
Nanoindentation of single crystalline Mo: Atomistic defect nucleation and thermomechanical stability
Creators: name: Domínguez-Gutiérrez, F. J.
name: Papanikolaou, S.
name: Esfandiarpour, A.
name: Sobkowicz, P.
name: Alava, M.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Computational Physics (physics.comp-ph)
subject: FOS: Physical sciences

description: The mechanical responses of single crystalline Body-Centered Cubic (BCC) metals, such as molybdenum (Mo), outperform other metals at high temperatures, so much so that they are considered as excellent candidates for applications under extreme conditions, such as the divertor of fusion reactors. The excellent thermomechanical stability of molybdenum at high temperatures (400-1000$^{\rm o}$C) has also been detected through nanoindentation, pointing towards connections to emergent local dislocation mechanisms related to defect nucleation. In this work, we carry out a computational study of the effects of high temperature on the mechanical deformation properties of single crystalline Mo under nanoindentation. Molecular dynamics (MD) simulations of spherical nanoindentation are performed at two indenter tip diameters and crystalline sample orientations [100], [110], and [111], for the temperature range of 10-1000K. We investigate how the increase of temperature influences the nanoindentation process, modifying dislocation densities, mechanisms, atomic displacements and also, hardness, in agreement with reported experimental measurements. Our results suggest that the characteristic formation and high-temperature stability of [001] dislocation junctions in Mo during nanoindentation, in contrast to other BCC metals, may be the cause of the persistent thermomechanical stability of Mo.