Miracle-dz/UniFAR-FTUs huggingface dataset:
Cluster form factor calculation in the ab initio no-core shell model

We derive expressions for cluster overlap integrals or channel cluster form factors for ab initio no-core shell model (NCSM) wave functions. These are used to obtain the spectroscopic factors and can serve as a starting point for the description of low-energy nuclear reactions. We consider the composite system and the target nucleus to be described in the Slater determinant (SD) harmonic oscillator (HO) basis while the projectile eigenstate to be expanded in the Jacobi coordinate HO basis. This is the most practical case. The spurious center of mass components present in the SD bases are removed exactly. The calculated cluster overlap integrals are translationally invariant. As an illustration, we present results of cluster form factor calculations for , , , , , , , , , and , with all the nuclei described by multi-({Dirac_h}/2{pi}){omega} NCSM wave functions.
Nonlinear kinematic oscillations of railway wheelsets of general surface geometry

Kinematic oscillation of railway wheelsets is investigated in the case of a straight track, focusing on the nonlinear effects of the geometry of wheel and rail profiles. Euler angles are used to describe the motion of the wheelset, the contacting bodies are modelled by two‐parametric rigid surfaces. The surface parameters of the current contact points are followed during the calculations. The curvatures and their variations are also included in the analysis. From the implicit form of the geometric constraints, the dynamics is determined by means of Taylor expansion. Equations of the local nonlinear motion are derived and the qualitative behaviour of the system is given. (© 2014 Wiley‐VCH Verlag GmbH & Co. KGaA, Weinheim)
Posttraumatic Stress Disorder (PTSD) and Instigation of Cardiovascular Events: Ischemic Heart Disease (IHD) and Atrial Fibrillation (AF)

Posttraumatic stress disorder (PTSD) is a disorder with chronic deterioration that arises after exposure to traumatic events. In these events, a persistent maladaptive reaction was found as a result of severe psychological stress and trauma. It is usually accompanied by mood alteration, disturbing memories, evading behavior, and hyperarousal. Many studies found a connection between PTSD and both ischemic heart disease (IHD) and atrial fibrillation (AF). Impairment of the hypothalamic-pituitary-adrenal axis and sympathetic nervous system can contribute to hypercoagulability, elevated cardiac reactivity, hypertension, dyslipidemia, and chronic inflammation, as all of these processes are implicated in IHD and AF risk. PTSD tends to have a more long‐term course and is associated with more autonomic reactivity rather than a direct negative impact. More research is needed to understand the mechanisms underlying the increased AF risk in patients with PTSD and to identify supposed objectives for screening, intervention, and treatment. Highlighting the connection between PTSD and cardiovascular events would lead clinicians to develop screening tests that might help with the prevention and treatment of cardiovascular events for these patients.
Nonparametric hidden Markov models

Hidden Markov models (HMMs) are flexible time series models in which the observed process depends on unobserved serially correlated states. The state-dependent distributions in HMMs are usually taken from some class of parametrically specified distributions. The choice of this class can be difficult, and an unfortunate choice can have serious consequences for example on state estimates and on the interpretation of the underlying system. In a recent paper, Yau et al. (2011, JRSS-B) suggested a Bayesian approach for estimating the state-dependent distributions in a nonparametric way. We consider an alternative likelihood-based approach, which is based on the idea of representing the densities of the state-dependent distributions as linear combinations of a large number of standardized B-spline basis functions, imposing a penalty term on non-smoothness in order to maintain a good balance between goodness of fit and smoothness.
Graphen und Digraphen : eine Einführung in die Graphentheorie

Hola lectores! Antes de leer este libro de Graphen und Digraphen: Eine Einführung In Die Graphentheorie PDF Kindle, ya he leído algunas reseñas que ya comparten mis amigos. Me interesa la reseña que dan, para que este libro Graphen und Digraphen: Eine Einführung In Die Graphentheorie PDF En línea ya esté conmigo. Interesante, deleite y estudiando después de leer este libro Graphen und Digraphen: Eine Einführung In Die Graphentheorie PDF Descargar, también curiosidades con este libro Graphen und Digraphen: Eine Einführung In Die Graphentheorie PDF ePub. Usted será chagrined si no leyó este libro. Por favor, visite este blog, entonces usted encontrará el archivo de libro que guardó en formato de documento zip, pdf, ppt, rar, txt y documentos de diseño de palabras.
Uso racional de antibióticos – Uma revisão narrativa

Introdução: O advento dos antibióticos na década de 1940 certamente revolucionou a medicina moderna e proporcionou a sensação de segurança ao homem moderno quanto aos riscos frente uma infecção bacteriana. Essa euforia, entretanto, esteve presente por um período limitado, tendo em vista que a aparente solução para um problema antigo levantou outro ainda maior – a resistência aos antibióticos. Objetivos: realizar uma revisão bibliográfica apresentando uma discussão pertinente acerca da resistência antimicrobiana e trazer evidências recentes no que diz respeito ao uso racional de antibióticos. Metodologia: foram realizadas pesquisas nas bases de dados Scielo, PubMed e Google Acadêmico, utilizando-se as palavras chave: Farmacorresistência Bacteriana, Uso Racional de Medicamentos e Antibióticos. Discussão e conclusão: O uso racional de antibióticos está pautado em uma série de conhecimentos básicos que fundamentam o raciocínio clínico e permitem ao profissional assistente empregar de maneira mais assertiva o uso desses fármacos, visando obter melhores resultados e minimizar os riscos de seu uso. Além dos efeitos adversos conhecidos, o uso desses fármacos abrange o que há décadas se configura como um problema de saúde em nível mundial, principalmente em decorrência do uso desnecessário, inapropriado ou subótimo no caso dos profissionais da saúde. Por isso, a situação vigente requer a discussão e implementação de medidas que visam a regulamentação da venda e sua fiscalização efetiva, bem como a educação da população e dos profissionais acerca do tema por meio de constante discussão e atualização no assunto.
Phase Space and Dynamical Fluctuations of Kaon-to-Pion Ratios

(Dated: July 26, 2010)The dynamical ﬂuctuations of kaon–to–pion ratios have been studied over a wide range of center–of–mass energies√s. Based on changing phase space volume which apparently is the consequenceof phase transition from hadrons to quark–gluon plasma at large√s, single–particle distributionfunction f is assumed to be rather modiﬁed. Varying f and phase space volume are implemented inthe grand–canonical partition function, especially at large√s, so that hadron resonance gas model,when taking into account the experimental acceptance and quark phase space occupation factor,turns to be able to reproduce the dynamical ﬂuctuations over the entire range of√s.
Assessing engineering students’ perspectives of entrepreneurship education within higher education: a comparative study in Hong Kong

Abstract With the increasing interest in entrepreneurship education within engineering education, there are questions on what engineering entrepreneurship education should include. As engineering entrepreneurship education aims to foster entrepreneurial individuals who will contribute to knowledge-based societies and economic growth, student perspectives are crucial. This study assessed first and final year engineering students’ perceptions on entrepreneurship education in a university in Hong Kong, identifying important competencies as learning outcomes and motivating and deterring factors for students to pursue entrepreneurship as a career. Findings offer implications for curriculum design and educational practices, particularly on formally offering entrepreneurship education in the engineering discipline, involving competencies development in educational practices and developing opportunities addressing students’ factors of motivation and deterrence.
Entanglement of Formation and Conditional Information Transmission

We show that the separability of states in quantum mechanics has a close counterpart in classical physics, and that conditional mutual information (a.k.a. conditional information transmission) is a very useful quantity in the study of both quantum and classical separabilities. We also show how to define entanglement of formation in terms of conditional mutual information. This paper lays the theoretical foundations for a sequel paper which will present a computer program that can calculate a decomposition of any separable quantum or classical state.
Optimized coupling of cold atoms into a fiber using a blue-detuned hollow-beam funnel

We theoretically investigate the process of coupling cold atoms into the core of a hollow-core photonic-crystal optical fiber using a blue-detuned Laguerre-Gaussian beam. In contrast to the use of a red-detuned Gaussian beam to couple the atoms, the blue-detuned hollow beam can confine cold atoms to the darkest regions of the beam, thereby minimizing shifts in the internal states and making the guide highly robust to heating effects. This single optical beam is used as both a funnel and a guide to maximize the number of atoms into the fiber. In the proposed experiment, Rb atoms are loaded into a magneto-optical trap (MOT) above a vertically oriented optical fiber. We observe a gravito-optical trapping effect for atoms with high orbital momentum around the trap axis, which prevents atoms from coupling to the fiber: these atoms lack the kinetic energy to escape the potential and are thus trapped in the laser funnel indefinitely. We find that by reducing the dipolar force to the point at which the trapping effect just vanishes, it is possible to optimize the coupling of atoms into the fiber. Our simulations predict that by using a low-power (2.5 mW) and far-detuned (300 GHz) Laguerre-Gaussian beam with amore » 20-{mu}m-radius core hollow fiber, it is possible to couple 11% of the atoms from a MOT 9 mm away from the fiber. When the MOT is positioned farther away, coupling efficiencies over 50% can be achieved with larger core fibers. « less
Non-Hermitian effective Hamiltonian and continuum shell model

The intrinsic dynamics of a system with open decay channels is described by a non-Hermitian effective Hamiltonian which at the same time allows one to find the external dynamics\char22{}reaction cross sections. We discuss ways of incorporating this approach into the shell model context. The approach is capable of describing a multitude of phenomena in a unified way combining physics of structure and reactions. Self-consistency of calculations for a chain of nuclides and threshold energy dependence of the continuum coupling are crucial for the description of loosely bound states. Schematic and realistic examples of open many-body systems where internal configuration mixing is generated by pairing are presented.
Fukushima type decomposition for semi-Dirichlet forms

We present a Fukushima type decomposition in the setting of general quasi-regular semi-Dirichlet forms. The decomposition is then employed to give a transformation formula for martingale additive functionals. Applications of the results to some concrete examples of semi-Dirichlet forms are given at the end of the paper. We discuss also the uniqueness question about Doob-Meyer decomposition on optional sets of interval type.
The Deep X-Ray Radio Blazar Survey. I. Methods and First Results

We have undertaken a survey, the Deep X-Ray Radio Blazar Survey (DXRBS), of archived, pointed ROSAT Position Sensitive Proportional Counter data for blazars by correlating the ROSAT WGACAT database with several publicly available radio catalogs, restricting our candidate list to serendipitous flat radio spectrum sources (αr ≤ 0.70, where Sν ∝ ν). We discuss our survey methods, identification procedure, and first results. Our survey is found to be ∼95% efficient at finding flat-spectrum radio-loud quasars (FSRQs; 59 of our first 85 identifications) and BL Lacertae objects (22 of our first 85 identifications), a figure that is comparable to or greater than that achieved by other radio and X-ray survey techniques. The identifications presented here show that all previous samples of blazars (even when taken together) did not representatively survey the blazar population, missing critical regions of (LX, LR) parameter space within which large fractions of the blazar population lie. Particularly important is the identification of a large population of FSRQs (≳25% of DXRBS FSRQs) with ratios of X-ray to radio luminosity ≳10-6 (αrx ≲ 0.78). In addition, as a result of our greater sensitivity, the DXRBS has already more than doubled the number of FSRQs in complete samples with 5 GHz (radio) luminosities between 1031.5 and 1033.5 ergs s-1 Hz-1, and fills in the region of parameter space between X-ray–selected and radio-selected samples of BL Lac objects. The DXRBS is the very first sample to contain statistically significant numbers of blazars at low luminosities, approaching what should be the lower end of the FSRQ luminosity function.
Raman spectra analysis for Ca(B1/3′B2/3″)O3-based complex perovskite ceramics

Ca[(Mg1/3Ta2/3)1−xTix]O3 (hereafter denoted as CMTT) and (Ca1−0.39xNd0.26x) [(Mg1/3Nb2/3)1−xTix]O3 (hereafter denoted as CNMNT) complex perovskite ceramics were studied by Raman spectroscopy combined with Rietveld analysis. The crystal structures changed from monoclinic structure with P21/c space group to orthorhombic structure with Pbnm space group for both systems. The main structure of the two systems was orthorhombic and the characteristic modes for the orthorhombic structure with space group Pbnm could be found in all the compositions. Raman modes at around 408 cm−1 could only be found for compositions with 1:2 long range cation ordering while modes at around 800 cm−1 could be found for all the compositions in both systems. They were concluded to be correlated with the 1:2 long range cation ordering and different short range cation ordering, respectively. Two Ag modes at around 800 cm−1 represented for 1:2 and 1:1 short range cation ordering were observed for CMTT ceramics with x=0.1–0.6 while only 1.
X-Ray, Optical, and Radio Observations of the Type II Supernovae 1999em and 1998S

Observations of the Type II-P (plateau) supernova SN 1999em and Type IIn (narrow emission line) SN 1998S have enabled estimation of the profile of the SN ejecta, the structure of the circumstellar medium (CSM) established by the pre-SN stellar wind, and the nature of the shock interaction. SN 1999em is the first Type II-P detected at both X-ray and radio wavelengths. It is the least radio luminous and one of the least X-ray luminous SNe ever detected (except for the unusual and very close SN 1987A). The Chandra X-ray data indicate nonradiative interaction of SN ejecta with a power-law density profile (ρ ∝ r-n, with n ~ 7) for a pre-SN wind with a low mass-loss rate of ~2 × 10-6 M☉ yr-1 for a wind velocity of 10 km s-1, in agreement with radio mass-loss rate estimates. The Chandra data show an unexpected, temporary rise in the 0.4-2.0 keV X-ray flux at ~100 days after explosion. SN 1998S, at an age of more than 3 yr, is still bright in X-rays and is increasing in flux density at centimeter radio wavelengths. Spectral fits to the Chandra data show that many heavy elements (Ne, Al, Si, S, Ar, and Fe) are overabundant with respect to solar values. We compare the observed elemental abundances and abundance ratios to theoretical calculations and find that our data are consistent with a progenitor mass of approximately 15-20 M☉ if the heavy-element ejecta are radially mixed out to a high velocity. If the X-ray emission is from the reverse shock wave region, the supernova density profile must be moderately flat at a velocity ~104 km s-1, the shock front is nonradiative at the time of the observations, and the mass-loss rate is (1-2) × 10-4 M☉ yr-1 for a presupernova wind velocity of 10 km s-1. This result is also supported by modeling of the radio emission, which implies that SN 1998S is surrounded by a clumpy or filamentary CSM established by a high mass-loss rate, ~2 × 10-4 M☉ yr-1, from the presupernova star.
GW150914 peak frequency: a novel consistency test of strong-field general relativity

We introduce a novel test of general relativity in the strong-field regime of a binary black hole coalescence. Combining information coming from numerical relativity simulations of coalescing black hole binaries with a Bayesian reconstruction of the gravitational wave signal detected in LIGO-Virgo interferometric data, allows one to test theoretical predictions for the instantaneous gravitational wave frequency measured at the peak of the gravitational wave signal amplitude. We present the construction of such a test and apply it on the first gravitational wave event detected by the LIGO and Virgo Collaborations, GW150914. The p -value obtained is p = 0.48, to be contrasted with an expected value of p = 0.5, so that no signs of violations from general relativity were detected.
Deferential Tailoring: a grounded theory of how women respond and adapt to social conditions and gender-related challenges in the New Zealand construction industry

Abstract In this article we utilize grounded theory to explore women’s experiences in the unique construction industry context that followed the 2010 Canterbury (New Zealand) earthquakes. Data were obtained from 36 semi-structured interviews conducted with women working in a variety of occupations in the construction industry. We identify three inter-related categories: capitalizing on opportunity, demonstrating capability and surface tolerance, which together represent a response process that we label “deferential tailoring”. The deferential tailoring process explains how women intentionally shape their response to industry conditions through self-regulating behaviours that enables them to successfully seize opportunities and manage gender-related challenges in the working environment. Our findings challenge existing research which suggests that women adopt submissive coping strategies to conform to androcentric norms in the construction industry. Instead, we argue that the process of deferential tailoring can empower women to build positive workplace relationships, enhance career development, and help shift perceptions of the value of their work in the industry.
Supersymmetric AdS5 solutions of type IIB supergravity

We analyse the most general bosonic supersymmetric solutions of type IIB supergravity whose metrics are warped products of five-dimensional anti-de Sitter space (AdS5) with a five-dimensional Riemannian manifold M5. All fluxes are allowed consistent with SO(4, 2) symmetry. We show that the necessary and sufficient conditions can be phrased in terms of a local identity structure on M5. For a special class, with constant dilaton and vanishing axion, we reduce the problem to solving a second-order nonlinear ODE. We find an exact solution of the ODE which reproduces a solution first found by Pilch and Warner. A numerical analysis of the ODE reveals an additional class of local solutions giving complete metrics on S5 but with three-form flux and Killing spinors that are not globally defined.
View of the Renin-Angiotensin System in Acute Kidney Injury Induced by Renal Ischemia-Reperfusion Injury

Renal ischemia-reperfusion injury (RIRI) is a sequence of complicated events that is defined as a reduction of the blood supply followed by reperfusion. RIRI is the leading cause of acute kidney injury (AKI). Among the diverse mediators that take part in RIRI-induced AKI, the renin-angiotensin system (RAS) plays an important role via conventional (angiotensinogen, renin, angiotensin-converting enzyme (ACE), angiotensin (Ang) II, and Ang II type 1 receptor (AT1R)) and nonconventional (ACE2, Ang 1-7, Ang 1-9, AT2 receptor (AT2R), and Mas receptor (MasR)) axes. RIRI alters the balance of both axes so that RAS can affect RIRI-induced AKI. In overall, the alteration of Ang II/AT1R and AKI by RIRI is important to consider. This review has looked for the effects and interactions of RAS activities during RIRI conditions.
Relativistic three-partite non-locality

Bell-like inequalities have been used in order to distinguish non-local quantum pure states by various authors. The behavior of such inequalities under Lorentz transformation has been a source of debate and controversies in the past. In this paper, we consider the two most commonly studied three-particle pure states, that of W and GHZ states which exhibit distinctly different type of entanglement. We discuss the various types of three-particle inequalities used in previous studies and point to their corresponding shortcomings and strengths. Our main result is that if one uses Czachor's relativistic spin operator and Svetlichny's inequality as the main measure of non-locality and uses the same angles in the rest frame ($S$) as well as the moving frame ($S^{\prime}$), then maximally violated inequality in $S$ will decrease in the moving frame, and will eventually lead to lack of non-locality ( i.e. satisfaction of inequality) in the $v \rightarrow c$ limit. This is shown for both the GHZ and W states and in two different configurations which are commonly studied (\textbf{Case $I$} and \textbf{Case $II$}). Our results are in line with a more familiar case of two particle case. We also show that the satisfaction of Svetlichny's inequality in the $v\rightarrow c$ limit is independent of initial particles' velocity. Our study shows that whenever we use Czachor's relativistic spin operator, results draws a clear picture of three-particle non-locality making its general properties consistent with previous studies on two-particle systems regardless of the W state or the GHZ state is involved.
Benchmarking Machine Learning Models to Predict Corporate Bankruptcy

Using a comprehensive sample of 2,585 bankruptcies from 1990 to 2019, we benchmark the performance of various machine learning models in predicting financial distress of publicly traded U.S. firms. We find that gradient boosted trees outperform other models in one-year-ahead forecasts. Variable permutation tests show that excess stock returns, idiosyncratic risk, and relative size are the more important variables for predictions. Textual features derived from corporate filings do not improve performance materially. In a credit competition model that accounts for the asymmetric cost of default misclassification, the survival random forest is able to capture large dollar profits.
Electron-phonon coupling induced pseudogap and the superconducting transition in Ba0.67K0.33BiO3

We study the single particle density of states (DOS) across the superconducting transition (Tc = 31 K) in single-crystal Ba0.67K0. 33BiO3 using ultrahigh resolution angle-integrated photoemission spectroscopy. The superconducting gap opens with a pile-up in the DOS, Delta(5.3 K) = 5.2 meV and 2Delta(0)/kBTc = 3.9. In addition, we observe a pseudogap below and above Tc, occurring as a suppression in intensity over an energy scale up to the breathing mode phonon(~ 70 meV). The results indicate electron-phonon coupling induces a pseudogap in Ba0.67K0. 33BiO3.