3
3.0

Jun 30, 2018
06/18

by
Gang Lü; Ye Lu; Sheng-Tao Li; Yu-Ting Wang

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In Perturbative QCD (PQCD) approach we study the direct $CP$ violation in the pure annihilation decay process of $\bar{B}^0_{s}\rightarrow\pi^+\pi^-\pi^+\pi^-$ induced by the $\rho$ and $\omega$ double resonance effect. Generally, the $CP$ violation is small in the pure annihilation type decay process. However, we find that the $CP$ violation can be enhanced by double $\rho-\omega$ interference when the invariant masses of the $\pi^+\pi^-$ pairs are in the vicinity of the $\omega$ resonance....

Topic: High Energy Physics - Phenomenology

Source: http://arxiv.org/abs/1701.01966

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10.0

Jun 30, 2018
06/18

by
Niv Buchbinder; Moran Feldman; Joseph Naor; Ohad Talmon

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We consider a multi-level aggregation problem in a weighted rooted tree, studied recently by Bienkowski et al. (2015). In this problem requests arrive over time at the nodes of the tree, and each request specifies a deadline. A request is served by sending it to the root before its deadline at a cost equal to the weight of the path from the node in which it resides to the root. However, requests from different nodes can be aggregated, and served together, so as to save on cost. The cost of...

Topics: Data Structures and Algorithms, Computing Research Repository

Source: http://arxiv.org/abs/1701.01936

6
6.0

Jun 30, 2018
06/18

by
A. A. Kozhevnikov

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The mass spectra of the $\phi\phi$ and $J/\psi\phi$ states in the decay $B^0_s\to J/\psi\phi\phi$ recently observed by LHCb are calculated in the model which takes into account the $J^P=0^+,0^-,2^+$ intermediate resonances $R_1$, $R_2$ in the $\phi\phi$ channel and the $J^P=1^+$ ones, $X_1$, $X_2$, in the $J/\psi\phi$ channel. When obtaining the expressions for the effective amplitudes and mass spectra, the approximate threshold kinematics of the decay is used essentially. The $R_1-R_2$ and...

Topics: Nuclear Theory, High Energy Physics - Experiment, High Energy Physics - Phenomenology

Source: http://arxiv.org/abs/1701.01934

On 08-01-2017, my computer took snapshots, every 7.1 seconds, of this very slow animation of 10 circles. These circles slowly rotate, and turn into a square, and then back to a circle. They all move at different speeds. They all have a different random colour. They all animate with a different animation timing function. And they are all blended with the so called difference blend mode, which makes each snapshot even more random.

Topics: art, generated, circles, colours, colors, color, colour, geometry, date, random

Every day my webserver generates a new book, filled with 100 blobs of a random size, random shape and a random colour on a random coloured background. As long as this webserver exists, this library will keep on growing. This book was generated on 08-01-2017

Topics: art, generated, blobs, blob, colours, colors, color, colour, geometry, date, random

The web has many possible appearances. This book is one of them. Every day Vasilis' server visits a website and generates one of these books with it. In this book you will find 100 blobs of a random shape and a random colour. The blob is placed on a striped background of two random colours. The width of the stripes and the width of the stroke of the blob are randomish as well. Just like the angle of the stripes. As long as Vasilis pays his hosting bill, a new book will be generated each day

Topics: art, generated, blobs, colours, colors, color, colour, stripes, lines, date, random

Every day my server generates one of these books. In it you will find 100 random ratios. These ratios are based on one of the twelve excellent orthogons: The Quadrat, the Hemidiagon, the Trion, the Quadriagon, the Biauron, the Penton, the Diagon, the Bipenton, the Hemiolion, the Auron, the Hecton, and the Doppelquadrat. Every ratio on every page is generated at random. And all colours on every page are generated at random as well. This book was generated on 08-01-2017

Topics: art, generated, ratio, layout, colours, colors, color, colour, geometry, date, random

Every day my webserver generates a new book, filled with 100 rectangles of a random size and a random colour on a random coloured background. As long as this webserver exists, this library will keep on growing. This book was generated on 08-01-2017

Topics: art, generated, rectangles, rectangle, colours, colors, color, colour, geometry, date, random

47
47

May 30, 2020
05/20

by
Hoje na História

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08 de Janeiro de 2017

Topics: Janeiro 08, 2017

4
4.0

Jun 30, 2018
06/18

by
Matthew D. Johnston

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Recent work of M.D. Johnston et al. has produced sufficient conditions on the structure of a chemical reaction network which guarantee that the corresponding discrete state space system exhibits an extinction event. The conditions consist of a series of systems of equalities and inequalities on the edges of a modified reaction network called a domination-expanded reaction network. In this paper, we present a computational implementation of these conditions written in Python and apply the...

Topics: Optimization and Control, Dynamical Systems, Mathematics

Source: http://arxiv.org/abs/1701.02014

66
66

Jan 8, 2017
01/17

by
JOSÉ OZILDO DOS SANTOS

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Trata-se de uma pesquisa do tipo exploratória, na qual se utilizou uma abordagem qualitativa. O presente trabalho tem por objetivo verificar como os professores de uma escola pública do município de Patos, Estado da Paraíba, avaliam a inclusão do aluno com deficiência no ensino regular e se eles consideram a escola como sendo um espaço para todos. O processo de inclusão do portador de deficiência ocorra no ensino regular de forma efetiva, a escola precisa mudar o seu próprio perfil e...

Topics: Inclusão, Ensino Regular, Desafios.

5
5.0

Jun 30, 2018
06/18

by
Bernhard Schmitzer; Benedikt Wirth

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We propose a unifying framework for generalising the Wasserstein-1 metric to a discrepancy measure between nonnegative measures of different mass. This generalization inherits the convexity and computational efficiency from the Wasserstein-1 metric, and it includes several previous approaches from the literature as special cases. For various specific instances of the generalized Wasserstein-1 metric we furthermore demonstrate their usefulness in applications by numerical experiments.

Topics: Optimization and Control, Numerical Analysis, Computing Research Repository, Computer Vision and...

Source: http://arxiv.org/abs/1701.01945

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62

Jan 8, 2017
01/17

by
JOSÉ OZILDO DOS SANTOS

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No sertão paraibano, a exploração predatória dos recursos naturais, a falta de práticas adequadas das atividades agrícolas, aliada as condições climáticas do semiárido com longos períodos de estiagem, tem degradado a cobertura vegetal e acarretado o assoreamento dos rios e reservatórios, pela erosão dos solos. Tais práticas inadequadas também estão assoreando os recursos hídricos e colocando em risco a fauna silvestre e a permanência da população na zona rural. Uma vez que...

Topics: Sertão paraibano, Reflorestamento, Espécies nativas.

91
91

Jan 8, 2017
01/17

by
JOSÉ OZILDO DOS SANTOS

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Trata-se de uma pesquisa do tipo exploratória com uma abordagem qualitativa. Para atingir aos objetivos estabelecidos, desenvolveu-se inicialmente uma pesquisa bibliográfica e, posteriormente, uma pesquisa de campo. O presente trabalho tem por objetivo avaliar o processo de inclusão no ensino regular na perspectiva dos professores da rede pública de ensino no município de Patos, Estado da Paraíba. A inclusão de um aluno com deficiência no ensino regular deve ser transformada num ato de...

Topics: Ensino regular, Inclusão, Escola para todos.

4
4.0

Jun 30, 2018
06/18

by
Yang You; Chong Qin; Yi Gong

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Full-duplex is a promising technology and great system performance enhancement can be achieved especially when we apply it to base stations. In this paper, we consider a Multi-User OFDMA network consisting of one Full-duplex base station, several uplink users, and a number of downlink users. A joint subcarrier, downlink user and uplink user mapping and power allocation optimization problem is investigated. In detail, we first decompose the 3-dimensional mapping problem into three 2-dimensional...

Topics: Information Theory, Computing Research Repository, Mathematics

Source: http://arxiv.org/abs/1701.02010

94
94

Jan 8, 2017
01/17

by
JOSÉ OZILDO DOS SANTOS

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Nas comunidades quilombolas, o mel, o cerume e pólen, produzidos pelas abelhas nativas são bastante utilizados. Nessas comunidades, o mel produzido pela uruçu é considerado o melhor, principalmente, por suas propriedades medicinais. Entre os quilombolas, com uma grande frequência, a abelha uruçu é encontrada, sendo criada em cortiços, produzidos a partir de troncos ocos de árvores, fechando-se as extremidades com argila. O presente estudo tem por objetivo mostrar que a meliponicultura...

Topic: Comunidade Quilombola. Meliponicultura. Prática Sustentável.

380
380

Jan 8, 2017
01/17

by
JOSÉ OZILDO DOS SANTOS

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Nas comunidades quilombolas, o mel, o cerume e pólen, produzidos pelas abelhas nativas são bastante utilizados. Nessas comunidades, o mel produzido pela uruçu é considerado o melhor, principalmente, por suas propriedades medicinais. Entre os quilombolas, com uma grande frequência, a abelha uruçu é encontrada, sendo criada em cortiços, produzidos a partir de troncos ocos de árvores, fechando-se as extremidades com argila. O presente estudo tem por objetivo mostrar que a meliponicultura...

Topic: Comunidade Quilombola. Meliponicultura. Prática Sustentável.

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62

Jan 8, 2017
01/17

by
JOSÉ OZILDO DOS SANTOS

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Este trabalho objetivou analisar a percepção ambiental dos docentes de uma escola pública do interior do Estado da Paraíba, sobre questões ambientais no Bioma Caatinga. Os dados foram coletados através de questionários e posteriormente analisado. Os dados coletados demonstraram que todos os professores entrevistados, independentemente da disciplina que lecionam, trabalham a temática ambiental em suas salas de aulas, e, que a maioria faz isto de forma transversal, embora considere...

Topic: Bioma Caatinga. Questões Ambientais. Discussão Pedagógica.

4
4.0

Jun 30, 2018
06/18

by
Antonio Gomes Nunes

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In this paper we provide a family of inequalities, extending a recent result due to Albuquerque et al.

Topics: Functional Analysis, Mathematics

Source: http://arxiv.org/abs/1701.01950

3
3.0

Jun 30, 2018
06/18

by
Xiao-Jun Yang; Feng Gao; J. A. Tenreiro Machado; Dumitru Baleanu

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In this paper, a new fractional derivative involving the normalized sinc function without singular kernel is proposed. The Laplace transform is used to find the analytical solution of the anomalous heat-diffusion problems. The comparative results between classical and fractional-order operators are presented. The results are significant in the analysis of one-dimensional anomalous heat-transfer problems.

Topics: Classical Analysis and ODEs, Mathematics

Source: http://arxiv.org/abs/1701.05590

4
4.0

Jun 30, 2018
06/18

by
Barış Ekim

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Identification and alignment of three-dimensional folding of proteins may yield useful information about relationships too remote to be detected by conventional methods, such as sequence comparison, and may potentially lead to prediction of patterns and motifs in mutual structural fragments. With the exponential increase of structural proteomics data, the methods that scale with the rate of increase of data lose efficiency. Hence, new methods that reduce the computational expense of this...

Topics: Quantitative Biology, Quantitative Methods

Source: http://arxiv.org/abs/1701.01975

4
4.0

Jun 30, 2018
06/18

by
Steve Awodey

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An introduction and survey of homotopy type theory in honor of W.W. Tait.

Topics: Mathematics, Logic

Source: http://arxiv.org/abs/1701.02024

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66

Jan 8, 2017
01/17

by
JOSÉ OZILDO DOS SANTOS

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Trata-se de uma pesquisa exploratória e de natureza quantitativa, que teve por objetivo analisar a percepção dos professores de uma escola pública do interior paraibano sobre a prática pedagógica direcionada ao aluno com deficiência. A população deste estudo foi composta por 87 professores vinculados à rede pública, com exercício profissional nas zonas rural e urbano, do município de Passagem, Estado da Paraíba. A amostra foi constituída por 20 profissionais da educação, que...

Topics: Inclusão, Ensino Regular, Desafios.

Ahle Sunnat Jan 2017

Topic: Ahle Sunnat Jan 2017

Al Riaz Ul Nazra

Topic: Al Riaz Ul Nazra

3
3.0

Jun 30, 2018
06/18

by
Kai-Jia Sun; Lie-Wen Chen

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Based on a covariant coalescence model with a blast-wave-like parametrization for the phase-space configuration of constituent particles at freeze-out, we derive an approximate analytical formula for the yields of clusters produced in relativistic heavy-ion collisions. Compared to previous existing formulae, the present work additionally considers the contributions from the longitudinal dimension in momentum space, the relativistic corrections and the finite size effects of the produced...

Topics: Nuclear Theory, Nuclear Experiment, High Energy Physics - Phenomenology, Astrophysics, High Energy...

Source: http://arxiv.org/abs/1701.01935

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50

Jan 8, 2017
01/17

by
AndroidTV

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AndroidTVZip

Topic: AndroidTV

364
364

Jan 8, 2017
01/17

by
Herbert Booker

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Argosy - the Man's Magazine, Pulp Fiction. Volume 210, Number 6, March 15th, 1930.

Topics: Argosy - The Man's Magazine, Pulp Fiction, Herbert Booker

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505

Jan 8, 2017
01/17

by
Herbert Booker

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Volume 146, Number 6, November 4th, 1922 issue of Argosy Magazine.

Topics: Argosy Magazine, The Man's Magazine, Pulp Fiction, Herbert Booker, Magazines

4,740
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Assassin's Creed IV Black Flag - PRIMA Game Guide

favorite ( 1 reviews )

Topics: assassin's, creed, black, flag, game

5
5.0

Jun 30, 2018
06/18

by
Christoph Wunderer

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Asset correlations play an important role in credit portfolio modelling. One possible data source for their estimation are default time series. This study investigates the systematic error that is made if the exposure pool underlying a default time series is assumed to be homogeneous when in reality it is not. We find that the asset correlation will always be underestimated if homogeneity with respect to the probability of default (PD) is wrongly assumed, and the error is the larger the more...

Topics: Risk Management, Quantitative Finance

Source: http://arxiv.org/abs/1701.02028

4
4.0

Jun 30, 2018
06/18

by
Qingfeng Sun

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Let $A_f(1,n)$ be the normalized Fourier coefficients of a $GL(3)$ Maass cusp form $f$ and let $a_g(n)$ be the normalized Fourier coefficients of a $GL(2)$ cusp form $g$. Let $\lambda(n)$ be either $A_f(1,n)$ or the triple divisor function $d_3(n)$. It is proved that for any $\epsilon>0$, any integer $r\geq 1$ and $r^{5/2}X^{1/4+7\delta/2}\leq H\leq X$ with $\delta>0$, $$ \frac{1}{H}\sum_{h\geq 1}W\left(\frac{h}{H}\right) \sum_{n\geq 1}\lambda(n)a_g(rn+h)V\left(\frac{n}{X}\right)\ll...

Topics: Number Theory, Mathematics

Source: http://arxiv.org/abs/1701.02018

6
6.0

Jun 30, 2018
06/18

by
Kumar Abhinav; A Ghose Choudhury; Partha Guha

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In this paper we study a non-linear partial differential equation (PDE), proposed by N. Kudryashov [arXiv:1611.06813v1[nlin.SI]], using continuum limit approximation of mixed Fermi-Pasta-Ulam and Frenkel-Kontorova Models. This generalized semi-discrete equation can be considered as a model for the description of non-linear dislocation waves in crystal lattice and the corresponding continuous system can be called mixed generalized potential KdV and sine-Gordon equation. We obtain the...

Topics: Mathematical Physics, Nonlinear Sciences, Exactly Solvable and Integrable Systems, Mathematics

Source: http://arxiv.org/abs/1701.01929

8
8.0

Jun 30, 2018
06/18

by
Sebastian Preugschat; Thomas Wilke

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We present a direct transformation of weak alternating $\omega$-automata into equivalent backward deterministic $\omega$-automata and show (1) how it can be used to obtain a transformation of non-deterministic B\"uchi automata into equivalent backward deterministic automata and (2) that it yields optimal equivalent backward deterministic automata when applied to linear-time temporal logic formulas. (1) uses the alternation-free fragment of the linear-time $\mu$-calculus as an intermediate...

Topics: Formal Languages and Automata Theory, Computing Research Repository

Source: http://arxiv.org/abs/1701.01971

3
3.0

Jun 30, 2018
06/18

by
Quyuan Luo; Changle Li; Qiang Ye; Tom H. Luan; Lina Zhu; Xiaolei Han

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Effective file transfer between vehicles is fundamental to many emerging vehicular infotainment applications in the highway Vehicular Ad Hoc Networks (VANETs), such as content distribution and social networking. However, due to fast mobility, the connection between vehicles tends to be short-lived and lossy, which makes intact file transfer extremely challenging. To tackle this problem, we presents a novel Cluster-based File Transfer (CFT) scheme for highway VANETs in this paper. With CFT, when...

Topics: Networking and Internet Architecture, Computing Research Repository

Source: http://arxiv.org/abs/1701.01931

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61

Jan 8, 2017
01/17

by
ahmed zaka abbasi

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74

Jun 30, 2018
06/18

by
Colin Tan; Wing-Keung To

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We give a criterion which characterizes a homogeneous real multi-variate polynomial to have the property that all sufficiently large powers of the polynomial (as well as their products with any given positive homogeneous polynomial) have positive coefficients. Our result generalizes a result of De Angelis, which corresponds to the case of homogeneous bi-variate polynomials, as well as a classical result of P\'olya, which corresponds to the case of a specific linear polynomial. As an...

Topics: Complex Variables, Mathematics

Source: http://arxiv.org/abs/1701.02040

3
3.0

Jun 30, 2018
06/18

by
Cong Zhao; Xinyu Yang; Wei Yu; Xianghua Yao; Jie Lin; Xin Li

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Mobile Crowdsensing is a promising paradigm for ubiquitous sensing, which explores the tremendous data collected by mobile smart devices with prominent spatial-temporal coverage. As a fundamental property of Mobile Crowdsensing Systems, temporally recruited mobile users can provide agile, fine-grained, and economical sensing labors, however their self-interest cannot guarantee the quality of the sensing data, even when there is a fair return. Therefore, a mechanism is required for the system...

Topics: Cryptography and Security, Networking and Internet Architecture, Computing Research Repository

Source: http://arxiv.org/abs/1701.01928

4
4.0

Jun 30, 2018
06/18

by
Kotomi Taniguchi; Masao Saito

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We aim to reveal the chemistry of carbon-chain molecules in high-mass star-forming regions from molecular level to chemical evolution, applying the methods established in low-mass star-forming regions. In this proceeding, we summarize the topic about the main formation pathway of HC3N. We carried out observations of three 13C isotopologues of HC3N toward a hot core G28.28-0.36 with the 45-m radio telescope of the Nobeyama Radio Observatory. From the observational results, we propose that the...

Topics: Astrophysics of Galaxies, Solar and Stellar Astrophysics, Astrophysics

Source: http://arxiv.org/abs/1701.01925

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6.0

Jun 30, 2018
06/18

by
Jürgen Jost; Ruijun Wu; Miaomiao Zhu

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The regularity of weak solutions of a two-dimensional nonlinear sigma model with coarse gravitino is shown. Here the gravitino is only assumed to be in $L^p$ for some $p>4$. The precise regularity results depend on the value of $p$.

Topics: Differential Geometry, Analysis of PDEs, Mathematics

Source: http://arxiv.org/abs/1701.01995

6
6.0

Jun 30, 2018
06/18

by
Yuichi Ike

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We prove that the cardinality of the intersection of two compact exact Lagrangian submanifolds in a cotangent bundle is bounded from below by the dimension of the Hom space of the Guillermou's sheaf quantizations of the Lagrangians in Tamarkin's category. This gives a purely sheaf-theoretic new proof of a result of Nadler and Fukaya-Seidel-Smith, which asserts that the cardinality is at least the sum of the Betti numbers of the base space.

Topics: Symplectic Geometry, Geometric Topology, Mathematics

Source: http://arxiv.org/abs/1701.02057

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6.0

Jun 30, 2018
06/18

by
Ana G. Lecuona

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In this note we study the Seifert rational homology spheres with two complementary legs, i.e. with a pair of invariants whose fractions add up to one. We give a complete classification of the Seifert manifolds with 3 exceptional fibers and two complementary legs which bound rational homology balls. The result translates in a statement on the sliceness of some Montesinos knots.

Topics: Geometric Topology, Mathematics

Source: http://arxiv.org/abs/1701.01980

4
4.0

Jun 30, 2018
06/18

by
Mark Giesbrecht; Joseph Haraldson; Erich Kaltofen

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Differential (Ore) type polynomials with "approximate" polynomial coefficients are introduced. These provide an effective notion of approximate differential operators, with a strong algebraic structure. We introduce the approximate Greatest Common Right Divisor Problem (GCRD) of differential polynomials, as a non-commutative generalization of the well-studied approximate GCD problem. Given two differential polynomials, we present an algorithm to find nearby differential polynomials...

Topics: Symbolic Computation, Computing Research Repository, Numerical Analysis

Source: http://arxiv.org/abs/1701.01994

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5.0

Jun 30, 2018
06/18

by
Matthew D. Johnston; David F. Anderson; Gheorghe Craciun; Robert Brijder

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We study chemical reaction networks with discrete state spaces, such as the standard continuous time Markov chain model, and present sufficient conditions on the structure of the network that guarantee the system exhibits an extinction event. The conditions we derive involve creating a modified chemical reaction network called a domination-expanded reaction network and then checking properties of this network. We apply the results to several networks including an EnvZ-OmpR signaling pathway in...

Topics: Dynamical Systems, Mathematics

Source: http://arxiv.org/abs/1701.02012

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19

Jun 30, 2018
06/18

by
Rodolfo Ostilla-Mónico; Alpha A. Lee

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Reversible in operando control of friction is an unsolved challenge crucial to industrial tribology. Recent studies show that at low sliding velocities, this control can be achieved by applying an electric field across electrolyte lubricants. However, the phenomenology at high sliding velocities is yet unknown. In this paper, we investigate the hydrodynamic friction across electrolytes under shear beyond the transition to turbulence. We develop a novel, highly parallelised, numerical method for...

Topics: Physics, Condensed Matter, Fluid Dynamics, Soft Condensed Matter, Chemical Physics, Computational...

Source: http://arxiv.org/abs/1701.02005

3
3.0

Jun 30, 2018
06/18

by
Mehmet E. Basbug; Barbara E. Engelhardt

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We present a general framework, the coupled compound Poisson factorization (CCPF), to capture the missing-data mechanism in extremely sparse data sets by coupling a hierarchical Poisson factorization with an arbitrary data-generating model. We derive a stochastic variational inference algorithm for the resulting model and, as examples of our framework, implement three different data-generating models---a mixture model, linear regression, and factor analysis---to robustly model non-random...

Topics: Learning, Machine Learning, Statistics, Artificial Intelligence, Computing Research Repository

Source: http://arxiv.org/abs/1701.02058

4
4.0

Jun 30, 2018
06/18

by
Xiugang Wu; Leighton Pate Barnes; Ayfer Ozgur

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Consider a memoryless relay channel, where the channel from the relay to the destination is an isolated bit pipe of capacity $C_0$. Let $C(C_0)$ denote the capacity of this channel as a function of $C_0$. What is the critical value of $C_0$ such that $C(C_0)$ first equals $C(\infty)$? This is a long-standing open problem posed by Cover and named "The Capacity of the Relay Channel," in $Open \ Problems \ in \ Communication \ and \ Computation$, Springer-Verlag, 1987. In this paper, we...

Topics: Information Theory, Computing Research Repository, Mathematics

Source: http://arxiv.org/abs/1701.02043

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122

Jan 8, 2017
01/17

by
Vitor Pordeus

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Guerra Cibernética guerra científica pela compreensão da vida em ação

Topics: cyberwars, cibernética, guerra, compreensão, vida

This final report provides an overview of research efforts performed under the Suspicion, Trust, and Automation research portfolio as well as detailed sections from one of several studies in three distinct research efforts. The first section examines predictors of state-level IT suspicion. The second section summarizes a conceptual demonstration and prototype development of a non-contact functional near-infrared spectroscopy (fNIRS) device. The final section focuses on a software engineer's...

Topics: DTIC Archive, Calhoun,Chris, SRA INTERNATIONAL INC DAYTON OH DAYTON United States, cognitive...

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6.0

Jun 30, 2018
06/18

by
Jianming Lian; Shaobu Wang; Ruisheng Diao; Zhenyu Huang

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As power systems become more and more interconnected, the inter-area oscillations has become a serious factor limiting large power transfer among different areas. Underdamped (Undamped) inter-area oscillations may cause system breakup and even lead to large-scale blackout. Traditional damping controllers include Power System Stabilizer (PSS) and Flexible AC Transmission System (FACTS) controller, which adds additional damping to the inter-area oscillation modes by affecting the real power in an...

Topics: Systems and Control, Computing Research Repository

Source: http://arxiv.org/abs/1701.02036