cometadata/datacite-rtg-text-other-reclassification-records huggingface dataset:
Generation of hard twisted photons by charged particles in cholesteric liquid crystals
Creators: name: Bogdanov, O. V.
name: Kazinski, P. O.
name: Korolev, P. S.
name: Lazarenko, G. Yu.
Publisher: name: arXiv
Year: 2021
Subjects: subject: Accelerator Physics (physics.acc-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: We study the radiation from charged particles crossing a cholesteric plate in the shortwave approximation when the wavelength of photons is much smaller than the pitch of the cholesteric helix whereas the escaping angle of the photon and the anisotropy of the permittivity tensor can be arbitrary. The radiation of photons is treated in the framework of quantum electrodynamics with classical currents. The radiation of the plane-wave photons and the photons with definite projection of the angular momentum (the twisted photons) produced by charged particles crossing the cholesteric plate and moving rectilinearly and uniformly is considered. The explicit expressions for the average number of radiated photons and their spectra with respect to the energy and the projection of the angular momentum are obtained in this case. It turns out that in the paraxial approximation the projection of the orbital angular momentum, $l$, of radiated twisted photons is related to the harmonic number $n\in \mathbb{Z}$ as $l=2n+1$, i.e., the given system is a pure source of twisted photons as expected. It is shown that in the paraxial shortwave regime the main part of radiated photons is linearly polarized with $l=\pm1$ at the harmonics $n=\{-1,0\}$. The applicability conditions of the approach developed are discussed. As the examples, we consider the production of $6.3$ eV twisted photons from uranium nuclei and the production of X-ray twisted photons from $120$ MeV electrons.
description: 20 pp., 5 figs; 22 pp., 6 figs, some misprints corrected
Regular and Completely Regular Differential Operators
Creators: name: Shiryaev, E. A.
name: Shkalikov, A. A.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Spectral Theory (math.SP)
subject: Operator Algebras (math.OA)
subject: FOS: Mathematics

description: We define the concept of completely regular ordinary differential operators and give various criteria for operators to belong to this class. We give also criteria for Birkhof regularity of ordinary differential operators in terms of the growth of the Green function and basis property.
Biochemical studies on the expression of overdominance at the phosphoglucomutase-2 locus in the Pacific oyster, Crassostrea gigas (Thunberg)
Creators: name: Pogson, Grant H.
Publisher: name: University of British Columbia
Year: 2010

description: Numerous studies have documented significant associations between multiple-locus heterozygosity and fitness-related traits in natural populations, but the explanations for these patterns remain unknown. The objective of the present study was to examine the merits of the overdominance hypothesis as the mechanism responsible for a positive correlation between adult body weight and heterozygosity involving the phosphoglucomutase-2 (Pgm-2) locus in the Pacific oyster, Crassostrea gigas. The kinetic and structural properties of seven Pgm-2 genotypes were examined over physiological ranges of temperature and pH. Significant differences were detected between Pgm-2 genotypes in a variety of enzymic parameters, but these were largely confined to genotypes possessing the Pgm-2-92 allele, and heterozygotes displayed strict intermediacy for all functional and structural properties examined. The expression of marginal overdominance at the Pgm-2 locus was considered unlikely because of the limited scope of the observed variation between allozymes, and its incompatibility with allelic frequencies in natural populations. The three most common heterozygotes at the Pgm-2 locus displayed the extremely unusual property of overdominant enzyme activities. The magnitude of this overdominance was similar in the mantle and adductor muscle tissues, and was consistently observed in population samples from two intertidal positions in three different seasons. A physiological impact of the Pgm-2 polymorphism was demonstrated on the metabolism of glycogen, the biochemical pathway in which PGM functions. Pgm-2 genotypes exhibited different concentrations of glycogen in their mantle, but not their adductor muscle tissues, -which were directly associated with variation in their PGM activity levels. It was suggested that Pgm-2 genotype-dependent enzyme activity variation may affect rates of glycogen synthesis by a partitioning effect at the glucose-6-phosphate branch point. Non-random associations were detected between the PGM activities of Pgm-2 genotypic groups and the activities of adjacent glycogen synthesis pathway enzymes, but none that could clearly account for the differing glycogen concentrations observed between genotypes. The expression of overdominance for PGM activity, and its impact on mantle glycogen levels, provided direct evidence favoring the overdominance explanation as the cause of the larger body weights of heterozygotes at the Pgm-2 locus in Crassostrea gigas.
PRÁTICAS CONTÁBEIS NO SETOR PÚBLICO: A PERCEPÇÃO DOS CONTABILISTAS DO IFAL SOBRE A APLICAÇÃO DA NORMA BRASILEIRA DE CONTABILIDADE APLICADA AO SETOR PÚBLICO – NBC TSP 16.10
Creators: name: Cavalcante, Gesualdo Menezes
name: Aquino, Márcio Mateus Ferreira De
name: Israel, Sheila Mirian Barbosa
name: Ceolin, Alessandra Carla
Publisher: name: Revista de Informação Contábil
Year: 2017
Subjects: Avaliação; Mensuração; Convergência Internacional; Setor Público.

description: Este estudo buscou investigar a percepção dos contabilistas do Instituto Federal de Educação, Ciências e Tecnologia de Alagoas (IFAL) sobre a utilidade dos critérios e procedimentos para a avaliação e mensuração de ativos e passivos relacionados nas NBC T 16.10. A metodologia possui abordagem quantitativa e natureza descritiva, utilizando-se questionários para a coleta de dados. Os resultados evidenciaram que a percepção dos contabilistas do IFAL é positiva e a maioria dos respondentes reconhece que os critérios de avaliação e mensuração dos ativos e passivos discriminados na NBC TSP 16.10, quando implantados, promovem a melhoria da qualidade da informação contábil no setor público. No entanto, poucos profissionais implementam tais critérios nas práticas contábeis que realizam na instituição. Além disso, os resultados revelaram a necessidade de treinamento em relação a esse tema, pois 54% dos respondentes declararam não possuir ou ter apenas um conhecimento inicial referente a NBC TSP 16.10.
description: Revista de Informação Contábil, v. 11, n. 2 (2017)
Minimal Supergravity Inflation without Slow Gravitino
Creators: name: Terada, Takahiro
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: General Relativity and Quantum Cosmology (gr-qc)
subject: High Energy Physics - Phenomenology (hep-ph)
subject: FOS: Physical sciences

description: We utilize a recently proposed cubic nilpotent superfield to realize inflation in supergravity with the minimal degrees of freedom: the inflaton, graviton, and massive gravitino. As an advantage, the resultant model is free from the catastrophic production of gravitinos due to its vanishing propagation speed. However, the model suffers from the standard gravitino problem, and its viability depends on the mass spectrum and the thermal history of the universe.
description: 30 pages; published version (very minor revision; references added)
OS TRIBUNAIS DE CONTAS COMO USUÁRIOS DA INFORMAÇÃO CONTÁBIL NO SETOR PÚBLICO BRASILEIRO
Creators: name: Câmara, Alberto Leite
name: Lima, Diana Vaz De
Publisher: name: Revista de Informação Contábil
Year: 2017
Subjects: Tribunais de Contas. Informação Contábil. Contabilidade aplicada ao Setor Público

description: O presente estudo tem como objetivo analisar os Tribunais de Contas como usuários da informação contábil no âmbito do Setor Público brasileiro, com escopo nos processos de contas e nas auditorias contábeis. Para tratar a questão da pesquisa, realizou-se revisão bibliográfica e documental, bem como coleta de dados junto aos dirigentes das unidades de gestão macrogovernamental dos Tribunais de Contas brasileiros, mediante aplicação de questionário. Os resultados mostram que a maioria dos dirigentes entende que as informações contábeis (i) são aquelas provenientes das Demonstrações Contábeis e de Notas Explicativas, (ii) são relevantes se influenciarem na tomada de decisão dos usuários; e (iii) também são úteis às auditorias não-contábeis. O Balanço Patrimonial é a demonstração contábil que mais contribui nas auditorias contábeis, enquanto o Balanço Orçamentário se destaca nos processos de contas. Verificou-se também que a Confiabilidade é a característica da informação contábil mais importante na auditoria contábil, enquanto a característica da Fidedignidade é a mais importante nos processos de contas. Por fim, o estudo constatou que há uma tendência de aderência às Normas Internacionais, em relação aos objetivos da informação contábil no Setor Público Brasileiro.
description: Revista de Informação Contábil, v. 11, n. 2 (2017)
Jumping Through Loops: On Soft Terms from Large Volume Compactifications
Creators: name: Berg, Marcus
name: Haack, Michael
name: Pajer, Enrico
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: We subject the phenomenologically successful large volume scenario of hep-th/0502058 to a first consistency check in string theory. In particular, we consider whether the expansion of the string effective action is consistent in the presence of D-branes and O-planes. Due to the no-scale structure at tree-level, the scenario is surprisingly robust. We compute the modification of soft supersymmetry breaking terms, and find only subleading corrections. We also comment that for large-volume limits of toroidal orientifolds and fibered Calabi-Yau manifolds the corrections can be more important, and we discuss further checks that need to be performed.
description: 57 pages
Additional file 1 of Molecular targets of Yangyin Fuzheng Jiedu Prescription in the treatment of hepatocellular carcinoma based on network pharmacology analysis
Creators: name: Yan, Fengna
name: Feng, Miaomiao
name: Wang, Xinhui
name: Wang, Peng
name: Xie, Yuqing
name: Liu, Xiaoli
name: Li, Weihong
name: Yang, Zhiyun
Publisher: name: figshare
Year: 2020
Subjects: subject: Genetics
subject: FOS: Biological sciences
subject: Pharmacology
subject: Biotechnology
subject: Chemical Sciences not elsewhere classified
subject: Biological Sciences not elsewhere classified
subject: Cancer

description: Additional file 1. Additional tables.
Determinant of the SU(N) caloron with nontrivial holonomy
Creators: name: Slizovskiy, Sergey
Publisher: name: arXiv
Year: 2007
Subjects: subject: High Energy Physics - Theory (hep-th)
subject: FOS: Physical sciences

description: The 1-loop quantum weight of the SU(N) KvBLL caloron with nontrivial holonomy is calculated. The latter is the most general self-dual solution with unit topological charge in the 4d Yang-Mills theory with one compactified dimension (finite temperature).
description: 21 pages, published
Driven activation versus thermal activation
Creators: name: Ilg, Patrick
name: Barrat, Jean-Louis
Publisher: name: arXiv
Year: 2007
Subjects: subject: Statistical Mechanics (cond-mat.stat-mech)
subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: FOS: Physical sciences

description: Activated dynamics in a glassy system undergoing steady shear deformation is studied by numerical simulations. Our results show that the external driving force has a strong influence on the barrier crossing rate, even though the reaction coordinate is only weakly coupled to the nonequilibrium system. This "driven activation" can be quantified by introducing in the Arrhenius expression an effective temperature, which is close to the one determined from the fluctuation-dissipation relation. This conclusion is supported by analytical results for a simplified model system.
description: 5 pages, 3 figures
The CH2CN- molecule: Carrier of the lambda8037 diffuse interstellar band?
Creators: name: Cordiner, M. A.
name: Sarre, P. J.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: The hypothesis that the cyanomethyl anion CH2CN- is responsible for the relatively narrow diffuse interstellar band (DIB) at 8037.8 +- 0.15 Angstroms is examined with reference to new observational data. The 0_0^0 absorption band arising from the ^1B_1 - X ^1A' transition from the electronic ground state to the first dipole-bound state of the anion is calculated for a rotational temperature of 2.7 K using literature spectroscopic parameters and results in a rotational contour with a peak wavelength of 8037.78 Angstroms. By comparison with diffuse band and atomic line absorption spectra of eight heavily-reddened Galactic sightlines, CH2CN- is found to be a plausible carrier of the lambda8037 diffuse interstellar band provided the rotational contour is Doppler-broadened with a b parameter between 16 and 33 km/s that depends on the specific sightline. Convolution of the calculated CH2CN- transitions with the optical depth profile of interstellar Ti II results in a good match with the profile of the narrow lambda8037 DIB observed towards HD 183143, HD 168112 and Cyg OB2 8a. The rotational level populations may be influenced by nuclear spin statistics, resulting in the appearance of additional transitions from K_a = 1 of ortho CH2CN- near 8025 and 8050 Angstroms that are not seen in currently available interstellar spectra. For CH2CN- to be the carrier of the lambda8037 diffuse interstellar band, either a) there must be mechanisms that convert CH2CN- from the ortho to the para form, or b) the chemistry that forms CH2CN- must result in a population of K_a'' levels approaching a Boltzmann distribution near 3 K.
Vertical dynamics of disk galaxies in MOND
Creators: name: Nipoti, Carlo
name: Londrillo, Pasquale
name: Zhao, HongSheng
name: Ciotti, Luca
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: We investigate the possibility of discriminating between Modified Newtonian Dynamics (MOND) and Newtonian gravity with dark matter, by studying the vertical dynamics of disk galaxies. We consider models with the same circular velocity in the equatorial plane (purely baryonic disks in MOND and the same disks in Newtonian gravity embedded in spherical dark matter haloes), and we construct their intrinsic and projected kinematical fields by solving the Jeans equations under the assumption of a two-integral distribution function. We found that the vertical velocity dispersion of deep-MOND disks can be much larger than in the equivalent spherical Newtonian models. However, in the more realistic case of high-surface density disks this effect is significantly reduced, casting doubts on the possibility of discriminating between MOND and Newtonian gravity with dark matter by using current observations.
description: 8 pages, 7 figures. Accepted for publication in MNRAS. Added reference
TRANSPARÊNCIA PÚBLICA EM PORTAIS DE INSTITUTOS DE PREVIDÊNCIA MUNICIPAIS DA PARAÍBA: A ACCOUNTABILITY FOI ESQUECIDA?
Creators: name: Gomes, Francisca Raiany
name: Freire, Rommel De Santana
name: Sales, Jefferson David De Araújo
Publisher: name: Revista de Informação Contábil
Year: 2017

description: A qualidade dos gastos públicos no Brasil é tema recorrente nos diversos grupos de estudos nacionais nos últimos tempos, já que existem múltiplas abordagens e teorias sobre o modus operandi ideal de gestão do Estado. A transparência, que tem papel de destaque ao evidenciar os atos e contas da gestão, ao inserir-se naquela discussão é vista como prática indispensável à otimização do uso da coisa pública. Tendo tal entendimento em tela, faz-se neste texto uma investigação sobre o nível da transparência das informações divulgadas nos portais dos institutos de previdência municipais da Paraíba sob a ótica dos aspectos conteúdo, acessibilidade e usabilidade. O nível de transparência dos institutos foi verificado a partir de um modelo de análise denominado de Índice de Transparência Previdenciário Municipal (ITP-M) elaborado com base em estudos anteriores e na legislação vigente no país. Mesmo utilizando dados numéricos o estudo caracteriza-se com qualitativo tendo como principal fonte de dados a pesquisa documental. Os resultados apontam que os portais investigados não são capazes de viabilizar a construção da accountability. Dentre todos os institutos analisados, é perceptível a necessidade de adequação dos portais às boas práticas de governança, haja vista que não se cumpre todas as premissas estabelecidas em lei.
description: Revista de Informação Contábil, v. 11, n. 2 (2017)
Coherence of assistance and assisted maximally coherent states
Creators: name: Zhao, Ming-Jing
name: Pereira, Rajesh
name: Ma, Teng
name: Fei, Shao-Ming
Publisher: name: arXiv
Year: 2021
Subjects: subject: Quantum Physics (quant-ph)
subject: FOS: Physical sciences

description: Coherence and entanglement are fundamental concepts in resource theory. The coherence (entanglement) of assistance is the coherence (entanglement) that can be extracted assisted by another party with local measurement and classical communication. We introduce and study the general coherence of assistance. First, in terms of real symmetric concave functions on the probability simplex, the coherence of assistance and the entanglement of assistance are shown to be in one-to-one correspondence. We then introduce two classes of quantum states: the assisted maximally coherent states and the assisted maximally entangled states. They can be transformed into maximally coherent or entangled pure states with the help of another party using local measurement and classical communication. We give necessary conditions for states to be assisted maximally coherent or assisted maximally entangled. Based on these, a unified framework between coherence and entanglement including coherence (entanglement) measures, coherence (entanglement) of assistance, coherence (entanglement) resources is proposed. Then we show that the coherence of assistance as well as entanglement of assistance are strictly larger than the coherence of convex roof and entanglement of convex roof for all full rank density matrices. So all full rank quantum states are distillable in the assisted coherence distillation.
Seasonal isolation and adaptation among chum salmon, Oncorhynchus keta (Walbaum), populations
Creators: name: Tallman, Ross Franklin
Publisher: name: University of British Columbia
Year: 2010

description: To test the hypothesis that temporal isolation due to differences in season of breeding could result in genetic divergence among chum salmon populations, I compared the reproductive environments, phenotypes and genotypic performances of early and late season breeding stocks of chum salmon, Oncorhynchus keta. These were autumn (AB) and winter (WB) spawners from one Vancouver Island stream (Bush Creek) and another winter spawning stock (W) from a nearby stream (Walker Creek). All stocks had similar time of downstream migration of the fry. No differences were found among the W and AB stocks in age at maturity, length composition of spawners, egg size, vertebral count of adults and fry and time of fry migration. The WB stock differed from the other stocks in egg size and vertebral number of adults and fry. In 1981, WB spawners were larger than AB spawners. In 1982, WB spawners were younger than AB spawners. Analysis of ten external morphological features of the fry revealed that there was considerable overlap in body form of the stocks. To test the hypothesis that phenotypic similarities observed among seasonal ecotypes in the wild were due to genetic differences, sample populations were reared under controlled conditions in the laboratory. When reared at 6°C, under the autumn - winter - spring progression and the winter -spring progression, the early spawning population in Bush Creek took significantly more time to hatch and emerge than the spatially and temporally isolated population of Walker Creek, and the combined average of the late spawning populations. At 10°C the populations had similar incubation rates. Temperature regime, population and temperature regime by population interaction all had significant effects on vertebral number. AB progrency were morphologically distinct from WB and W. These results indicate that the early spawning population differs genetically from the late spawning populations. To test the hypothesis that selection on the speed of development from fertilization to hatch and emergence would reduce the additive genetic variation in these traits, individual families were reared from AB, WB and W. Heritabilities were found to be between 0.27 and 0.54. The high heritabilities suggest that some countervailing force is opposing selection on incubation rate. Analysis of diversity using biochemical genetics techniques suggest that genetic migration goes from the WB stock to the AB stock. Genetic distance measures and a Wagner-Tree analysis indicate that biochemically AB and WB are more closely related than W. It is postulated that the genetically determined program for incubation which results in synchronous downstream migration has survival value. Survival could be enhanced by predator satiation or synchrony with food resources in the estuary.
Al'tshuler-Aronov correction to the conductivity of a large metallic square network
Creators: name: Texier, Christophe
name: Montambaux, Gilles
Publisher: name: arXiv
Year: 2007
Subjects: subject: Disordered Systems and Neural Networks (cond-mat.dis-nn)
subject: Mesoscale and Nanoscale Physics (cond-mat.mes-hall)
subject: FOS: Physical sciences

description: We consider the correction $Δσ_\mathrm{ee}$ due to electron-electron interaction to the conductivity of a weakly disordered metal (Al'tshuler-Aronov correction). The correction is related to the spectral determinant of the Laplace operator. The case of a large square metallic network is considered. The variation of $Δσ_\mathrm{ee}(L_T)$ as a function of the thermal length $L_T$ is found very similar to the variation of the weak localization $Δσ_\mathrm{WL}(L_ϕ)$ as a function of the phase coherence length. Our result for $Δσ_\mathrm{ee}$ interpolates between the known 1d and 2d results, but the interaction parameter entering the expression of $Δσ_\mathrm{ee}$ keeps a 1d behaviour. Quite surprisingly, the result is very close to the 2d logarithmic behaviour already for $L_T\sim{a}/2$, where $a$ is the lattice parameter.
description: 6 pages, RevTex4, 3 eps figures
SISTEMA DE CONTROLE INTERNO DAS PREFEITURAS PARAENSES SOB A ÓTICA DE SEUS GESTORES
Creators: name: Garcia Neta, Idelvira De Alencar
name: Araujo, Dalila Do Nascimento
name: Dias, Lidiane Nazaré Da Silva
name: Albuquerque, Francivaldo Dos Santos
Publisher: name: Revista de Informação Contábil
Year: 2017

description: o presente artigo teve como objetivo analisar como se apresentam os sistemas de controle interno das prefeituras paraenses, sob a ótica dos seus gestores, no que concerne aos elementos elencados no COSO e na legislação brasileira que trata do tema. Esta pesquisa é do tipo exploratório-descritiva e tem como população as 144 prefeituras paraenses, a amostra restringiu-se a 99. Como estratégia para coleta de dados, aplicou-se um questionário aos Controladores Internos das prefeituras, que estavam no exercício de sua função até dezembro de 2016. Tal questionário foi associado à escala do tipo likert, dividido em 6 itens, sendo que 5 deles representam os componentes da estrutura do COSO (ambiente de controle, avaliação de riscos, atividades de controle, informação e comunicação, e atividades de monitoramento) e 1 referente ao compliance de normativos legais que regem o Sistema de Controle Interno brasileiro, obtendo-se 24,24% de respostas. A apreciação dos dados ocorreu por meio de estatística descritiva. Os resultados demonstraram que, dentre a amostra selecionada, 83,3% dos gestores de Controle Interno das prefeituras paraenses têm a percepção de que atendem de modo total ou quase totalmente aos normativos pertinentes ao Sistema de Controle Interno (compliance), e, no que concerne aos preceitos advindos do COSO, 56% dos mesmos possuem a percepção de que atendem totalmente ou quase totalmente ao item, permitindo concluir que, conforme a ótica da maioria dos gestores do Sistema de Controle Interno, as prefeituras paraenses atendem totalmente ou quase em totalidade as perspectivas elencadas no COSO e à legislação brasileira voltada ao tema.
description: Revista de Informação Contábil, v. 11, n. 2 (2017)
Searching for tidal tails - investigating galaxy harassment
Creators: name: Davies, J. I.
name: Roberts, S.
name: Sabatini, S.
Publisher: name: arXiv
Year: 2007
Subjects: subject: Astrophysics (astro-ph)
subject: FOS: Physical sciences

description: Galaxy harassment has been proposed as a physical process that morphologically transforms low surface density disc galaxies into dwarf elliptical galaxies in clusters. It has been used to link the observed very different morphology of distant cluster galaxies (relatively more blue galaxies with 'disturbed' morphologies) with the relatively large numbers of dwarf elliptical galaxies found in nearby clusters. One prediction of the harassment model is that the remnant galaxies should lie on low surface brightness tidal streams or arcs. We demonstrate in this paper that we have an analysis method that is sensitive to the detection of arcs down to a surface brightness of 29 B mag/arcsec^2 and then use this method to search for arcs around 46 Virgo cluster dwarf elliptical galaxies. We find no evidence for tidal streams or arcs and consequently no evidence for galaxy harassment as a viable explanation for the relatively large numbers of dwarf galaxies found in the Virgo cluster.
description: Accepted for publication in MNRAS
Sozialgeschichte jenseits des Produktionsparadigmas. Überlegungen zu Geschichte und Perspektiven eines Forschungsfeldes
Creators: name: Ziemann, Benjamin
Publisher: name: Moving the Social
Year: 2015

description: This is the contribution "Sozialgeschichte jenseits des Produktionsparadigmas. Überlegungen zu Geschichte und Perspektiven eines Forschungsfeldes" of MTS 28 (2003).
description: Moving the Social, Vol 28 (2003): Forschungen und Forschungsberichte
Implications of Feebly Interacting Dark Sector on Neutron Star Properties and Constraints from GW170817
Creators: name: Sen, Debashree
name: Guha, Atanu
Publisher: name: arXiv
Year: 2021
Subjects: subject: High Energy Physics - Phenomenology (hep-ph)
subject: Cosmology and Nongalactic Astrophysics (astro-ph.CO)
subject: High Energy Astrophysical Phenomena (astro-ph.HE)
subject: High Energy Physics - Theory (hep-th)
subject: Nuclear Theory (nucl-th)
subject: FOS: Physical sciences

description: We investigate the effect of feeble interaction of dark matter (DM) with hadronic matter on the equation of state (EoS) and structural properties of neutron stars (NSs) in static conditions. For the purpose we adopt the effective chiral model for the hadronic sector and for the first time in the context of possible existence of DM inside NSs, we introduce DM-SM interaction through light new physics mediator. Moreover, the mass of DM fermion, the mediator and the coupling are adopted from the self-interaction constraint from Bullet cluster and from present day relic abundance. Within the considered framework, the work highlights the underlying stiffening of EoS in presence of DM fermion of mass of the order of a few GeV compared to the no-DM scenario. Consequently, the maximum gravitational mass of NS is obtained consistent with the bounds from the most massive pulsars which were not satisfied with the hadronic matter EoS alone. The estimates of radius and tidal deformability of 1.4 $M_{\odot}$ NS and the tidal deformabilities of the individual components of the binary neutron stars (BNS) associated with GW170817 are all in good agreement with the individual constraints obtained from GW170817 observation of BNS merger.
description: 12 Pages, 13 figures, Minors typos are corrected in the latest version
Diatomic molecule as a quantum entanglement switch
Creators: name: Rycerz, Adam
Publisher: name: arXiv
Year: 2007
Subjects: subject: Strongly Correlated Electrons (cond-mat.str-el)
subject: FOS: Physical sciences

description: We investigate a pair entanglement of electrons in diatomic molecule, modeled as a correlated double quantum dot attached to the leads. The low-temperature properties are derived from the ground state obtained by utilizing the Rejec-Ramsak variational technique within the framework of EDABI method, which combines exact diagonalization with ab initio calculations. The results show, that single-particle basis renormalization modifies the entanglement-switch effectiveness significantly. We also found the entanglement signature of a competition between an extended Kondo and singlet phases.
description: To be presented on "The International Conference on Strongly Correlated Electron Systems" SCES'07, May 13-18, Houston, USA
Der Balkan im Blick der Gewerkschaftsinternationalen (Vom Vorabend des Ersten Weltkriegs bis zur Weltwirtschaftskrise)
Creators: name: Tosstorff, Reiner
Publisher: name: Moving the Social
Year: 2014

description: The Balkans drew the attention of the Trade Union International, founded as a separate institution in 1901 under social-democratic dominance and led by the German Carl Legien. It organised essential support for the development of the Balkan trade unions. At the same time, it tried to mediate in the conflicts which shook the Bulgarian workers' movement, with repercussions all over the Balkans. The consequences of the First World War led to the transformation of these organisational conflicts into political ones when the communist Red International of Labour Unions was founded. A bitter struggle was waged within the Balkan trade union movement which further undermined its weak position. The reconstruction of the intervention by the two trade union internationals not only shows the organisational consequences and the mutual interdependencies, but also highlights the difficulties of the 'gaze from afar', from the centre of the European labour movement, onto such an 'exotic region'.
description: Moving the Social, Vol 33 (2005): Social Movements in Southeast Europe
Europäischer Parlamentarismus der Zwischenkriegszeit im Vergleich
Creators: name: Mittag, Jürgen
Publisher: name: Moving the Social
Year: 2015

description: Andreas Wirsching (Hg.): Herausforderungen der parlamentarischen Demokratie
description: Moving the Social, Vol 40 (2008): Forschungen und Forschungsberichte
Glass tube cutting with aberration-corrected non-diffracting ultrashort laser pulses
Creators: name: Rave, Henning
name: Heiming, Henning
name: Szumny, Patrick
name: Kaiser, Myriam
name: Kleiner, Jonas
name: Flamm, Daniel
Publisher: name: arXiv
Year: 2021
Subjects: subject: Materials Science (cond-mat.mtrl-sci)
subject: Applied Physics (physics.app-ph)
subject: Optics (physics.optics)
subject: FOS: Physical sciences

description: The separation of complex inner and outer contours of glass articles with curved surfaces using ultrashort pulsed lasers is reported. Single-pass, full-thickness modifications along the entire substrate are achieved using a processing optics that allows for beam shaping of non-diffracting beams and, additionally, for aberration compensation of phase distortions occurring at the curved interface. The glass articles finally separated by thermal stress or via selective etching meet the demands of the medical industry in terms of micro-debris, surface quality and processing speed.
description: Accepted manuscript, 10 pages, 8 figures, 2 visualizations
Verfassungsgeschichte jenseits des nationalen Tellerrands
Creators: name: Schwitanski, Alexander
Publisher: name: Moving the Social
Year: 2015

description: Peter Brandt / Martin Kirsch / Arthur Schlegelmilch (Hg.): Handbuch der europäischenVerfassungsgeschichte im 19. Jahrhundert. Institutionen und Rechtspraxis im gesellschaftlichen Wandel
description: Moving the Social, Vol 40 (2008): Forschungen und Forschungsberichte
Percepções de micro e pequenos empresários quanto à utilidade de informações financeiras
Creators: name: Pimentel, Solange Schlogl
name: Igarashi, Deisy Cristina Correa
name: Igarashi, Wagner
name: Segate, Flávia Mayara
Publisher: name: Revista de Informação Contábil
Year: 2017
Subjects: Micro e pequenos empresários, Informações financeiras, Utilidade

description: As micro e pequenas empresas têm se configurado com participação crescente no produto interno bruto (PIB) e elevado potencial em gerar emprego e renda no contexto nacional, além de atuarem em variados segmentos (comércio, indústria, serviços e agroindústria) e estarem distribuídas nas diversas regiões do pais. Entretanto há pesquisas que indicam ser significativa o número de micro e pequenas empresas que obtêm morte prematura, ou seja antes de atingem cinco anos de vida. Ademais aspectos vinculados com a gestão das empresas têm papel fundamental na continuidade dos negócios. Neste sentido esta pesquisa tem por objetivo identificar a percepção de micro e pequenos empresários quanto à utilidade das informações financeiras fornecidas por um prestador de serviço terceirizado. A pesquisa tem caráter teórico e empírico, se caracteriza como qualitativa e descritiva, utiliza-se de entrevistas e questionários para a coleta de dados. Os resultados da pesquisa denotam que as empresas objeto de estudo apresentam resultados alinhados com as percepções teóricas da pesquisa. Foi identificado a falta de conhecimento necessário para que os empresários possam vir a utilizar as informações financeiras que são geradas no sentido de buscar apoiar o processo de tomada de decisão. Identificou-se que das ferramentas de apoio à decisão indicadas pela teoria (Fluxo de Caixa, Controle de Contas a pagar e a receber, Controle de Estoques, Análise dos índices financeiros, Folha de pagamento) menos de 30% das empresas pesquisadas apresentam algum tipo uso, sendo que somente 12% delas utilizam alguma destas informações para apoiar o processo de tomada de decisão.
description: Revista de Informação Contábil, v. 11, n. 3 (2017)
2017-2018 Berman-Topper Progress Reports
Creators: name: Maiuri, Tamara
Publisher: name: Zenodo
Year: 2019
Subjects: Huntington's disease
huntingtin
ROS
reactive oxygen species
DNA repair
poly ADP ribose
PARP
HDSA
Berman Topper

description: Quarterly and year-end reports for the HDSA Berman-Topper fellowship funding the ROS-specific huntingtin interactor project. Reports dated 2017-10-01, 2018-01-01, 2018-04-01, 2018-07-01 (year-end), 2018-10-01.
description: This work is funded by the HDSA Berman/Topper HD Career Development Fellowship.
Broadening EU's horizons. Position paper FP9.
Creators: name: VSNU
Publisher: name: Zenodo
Year: 2017
Subjects: FP9
Horizon program
research funding

description: The European project was conceived to bring peace and prosperity to its citizens after two world wars. In the last decades, it has been of great importance for all Europeans. The project has stimulated economic and societal cohesion and, in doing so, brought peace, security and economic prosperity for its inhabitants. Recent political events and the economic and financial crises have made it crystal clear that the benefits coming from European cooperation cannot be taken for granted. Europe is facing societal, economic and political challenges that are as great as ever. With Europe on the brink of a new era, it is now time to decide on the future EU which we need to face these challenges. The Association of universities in the Netherlands (VSNU) argues that the EU can maximise its added value for European citizens by focussing more resources in a concerted way on excellent research and innovation. Studies show that two-thirds of European economic growth is derived from R&I. Moreover, we need to develop new knowledge and use it to educate new talents in order to tackle the new challenges that our societies will face with regard to e.g. health care, digitalisation, security, climate and food. Thus, Europe needs to lead the world in the development and dissemination of knowledge. And Europe needs the EU and a new, larger, Framework Programme in order to make this happen. Only a Europe-wide R&I programme will strengthen the position of the EU on the global scale by enhancing coherence and taking competition and cooperation to the next level. With this bigger picture in mind, the VSNU expresses its position on the development of a new Framework Programme. A new Framework Programme which: 1. Focusses on excellence 2. Increases the impact of R&I, including through open science 3. Leaves ample room for fundamental research 4. Stimulates an interdisciplinary approach by fully integrating the Social Sciences and Humanities 5. Includes all regions and talents 6. Raises success rates 7. Comes with a bigger budget to match these bigger ambitions
A New Family of Unitary Space-Time Codes with a Fast Parallel Sphere Decoder Algorithm
Creators: name: Chen, Xinjia
name: Zhou, Kemin
name: Aravena, Jorge
Publisher: name: arXiv
Year: 2007
Subjects: subject: Information Theory (cs.IT)
subject: FOS: Computer and information sciences

description: In this paper we propose a new design criterion and a new class of unitary signal constellations for differential space-time modulation for multiple-antenna systems over Rayleigh flat-fading channels with unknown fading coefficients. Extensive simulations show that the new codes have significantly better performance than existing codes. We have compared the performance of our codes with differential detection schemes using orthogonal design, Cayley differential codes, fixed-point-free group codes and product of groups and for the same bit error rate, our codes allow smaller signal to noise ratio by as much as 10 dB. The design of the new codes is accomplished in a systematic way through the optimization of a performance index that closely describes the bit error rate as a function of the signal to noise ratio. The new performance index is computationally simple and we have derived analytical expressions for its gradient with respect to constellation parameters. Decoding of the proposed constellations is reduced to a set of one-dimensional closest point problems that we solve using parallel sphere decoder algorithms. This decoding strategy can also improve efficiency of existing codes.
description: 66 pages, 7 figures
CONTABILIDADE E CONTROLES GERENCIAIS INTEORGANIZACIONAIS: UM ENSAIO TEÓRICO SOB A PERSPECTIVA DA ECONOMIA DOS CUSTOS DE TRANSAÇÃO
Creators: name: Almeida, Karla Katiuscia Nóbrega
name: Callado, Antônio André Cunha
Publisher: name: Revista de Informação Contábil
Year: 2017
Subjects: Práticas de Contabilidade e Controle Gerenciais Interorganizacionais; Estrutura de Governança da Transação; Oportunismo.

description: O aporte teórico da Economia dos Custos de Transação pode ser utilizado no estudo da existência e melhores configurações das relações interorganizacionais, bem como no entendimento das práticas de controle gerencial socialmente construídas. Nesta perspectiva, objetivou-se relacionar práticas de contabilidade e de controle gerenciais interorganizacionais às estruturas de governança da transação oriundas da teoria dos custos de transação, tomando por base o estudo de Gonzaga et al. (2015) que o fizeram no contexto restrito aos mecanismos de gestão de custos inteorganizacionais. A reflexão desenvolvida neste ensaio propõe que benchmark de informações de custos e previsões de demandas podem ser úteis à negociação entre os parceiros quando da estrutura de governança de mercado; as práticas de compartilhamento de informações financeiras selecionadas, previsões de demandas e benchmark de informações de custos, podem ajudar na celebração do acordos contratuais, bem como orçamentos interorganizacionais e informações de custos de produtos podem ajudar no monitoramento da execução contratual, dentro da estrutura de governança híbrida; e para a governança hierárquica, as práticas de livros abertos, preços de transferência, contas de competência, orçamentos inteorganizacionais, comparações entre o orçamento planejado e o real, ciclo de tempo, informações de custos de produtos, custeio alvo, sistema de gestão de custos e incentivos aos boundary spanners podem contribuir para cooperação entre os parceiros e inibir o comportamento oportunista.
description: Revista de Informação Contábil, v. 11, n. 3 (2017)
Graphics : theories & experiments
Creators: name: Tan, Joseph K. H.
Publisher: name: University of British Columbia
Year: 2010

description: The primary justification of this research lies in the current thinking among graphics theorists and Management Information Systems researchers that different forms of information representation facilitate different types of tasks, and that it is the task characteristics which essentially influence performance with a given information presentation. Three experiments were designed to investigate hypotheses drawn from the literature testing the relative strengths and weaknesses of various graphical representations for answering a series of questions. Three forms of graph format were studied comprising bars, symbols, and lines. Time is the primary dependent variable of interest in this research. Accuracy is a secondary criterion. The tasks investigated involved the extraction of relationships among elementary classes of information depicted on various attribute components of time series data: (1) Dependent Variable (DV) component (namely, information on scale-values, level relationships, and trends); (2) Primary Independent Variable (PIV) component (namely, information on abscissa time period); and (3) Secondary Independent Variable (SIV) component (namely, information on dataset classification). Experiment 1 tasks involved the extraction of the DV scale-value (QT), DV level relationship (Q2), and DV trend (Q3) based on specific time period information on the PIV component. Results indicated that lines took longest for Q1 when compared to bars and symbols. Conversely, experiment 2 tasks involved the extraction of time period information based on a specific DV scale-value (Q1), the DV level relationship between two points (Q2), or the DV trend among several points (Q3). No statistically significant time differences were found among the various graph formats. However, lines were less accurate to use than bars for answering Q1. Experiment 3 tasks involved the extraction of dataset information from the SIV component based solely on a specific DV scale-value (Q1), the DV level relationship between two points (Q2), or the DV trend among several points (Q3). Results revealed that the time required for answering either Q2 or Q3 was longest with bars. Together, these results strongly indicated that the degree of support provided by a particular graph format for a particular task is heavily dependent upon the matching of task characteristics with graph format characteristics. Having information related to either the answer or question anchored on the x-axis and/or y-axis was found to influence task performance with the different graph formats investigated. Also, information complexity of graphics was found to be a function of time periods and/or datasets. There was only partial evidence to suggest the influence of individual characteristics on performance.
Beobachtungen eines „neutralen“ Deutschen zur Phase zwischen Diktatur zur Demokratie
Creators: name: Grebing, Helga
Publisher: name: Moving the Social
Year: 2015

description: Willy Brandt, Verbrecher und andere Deutsche. Ein Bericht aus Deutschland 1946. Bearbeitet von Einhart Lorenz. Willy-Brandt-Dokumente Bd. 1
description: Moving the Social, Vol 40 (2008): Forschungen und Forschungsberichte
Aplicação do Pronunciamento Técnico CPC 27 – Ativo Imobilizado - na Produção da Indústria Cerâmica
Creators: name: Silva, Alexandre Ribeiro Da
name: Arruda, Marcelo Paulo De
Publisher: name: Revista de Informação Contábil
Year: 2017
Subjects: Ativo Imobilizado; Contabilidade; Indústria Cerâmica

description: O presente trabalho tem como objetivo verificar a aplicação do CPC 27 nas indústrias cerâmicas brasileiras. Por meio da pesquisa descritiva com abordagem quali-quantitativa verificou-se o impacto da aplicação das IFRS na vida útil dos bens do Ativo Imobilizado; no cálculo da depreciação; no resultado; e no valor do Grupo Ativo Imobilizado. A amostra consistiu na seleção de dois grupos empresariais que adotaram o CPC 27 entre os anos de 2008 e 2009. Os resultados demonstraram que a vida útil dos bens do ativo imobilizado estava subavaliada; que o cálculo da depreciação foi afetado pela mudança na vida útil dos bens, bem como pela aplicação do custo atribuído (deemed cust); que o índice ROA (return of assets) convergiu em seus resultados após a aplicação do IFRS; que o Ativo Imobilizado teve um aumento relevante de seu valor quando foi adotado o custo atribuído.
description: Revista de Informação Contábil, v. 11, n. 3 (2017)
Quantifying social group evolution
Creators: name: Palla, Gergely
name: Barabasi, Albert-Laszlo
name: Vicsek, Tamas
Publisher: name: arXiv
Year: 2007
Subjects: subject: Methodology (stat.ME)
subject: Physics and Society (physics.soc-ph)
subject: Applications (stat.AP)
subject: FOS: Computer and information sciences
subject: FOS: Physical sciences

description: The rich set of interactions between individuals in the society results in complex community structure, capturing highly connected circles of friends, families, or professional cliques in a social network. Thanks to frequent changes in the activity and communication patterns of individuals, the associated social and communication network is subject to constant evolution. Our knowledge of the mechanisms governing the underlying community dynamics is limited, but is essential for a deeper understanding of the development and self-optimisation of the society as a whole. We have developed a new algorithm based on clique percolation, that allows, for the first time, to investigate the time dependence of overlapping communities on a large scale and as such, to uncover basic relationships characterising community evolution. Our focus is on networks capturing the collaboration between scientists and the calls between mobile phone users. We find that large groups persist longer if they are capable of dynamically altering their membership, suggesting that an ability to change the composition results in better adaptability. The behaviour of small groups displays the opposite tendency, the condition for stability being that their composition remains unchanged. We also show that the knowledge of the time commitment of the members to a given community can be used for estimating the community's lifetime. These findings offer a new view on the fundamental differences between the dynamics of small groups and large institutions.
description: 11 pages, 4 figures