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Sep 11, 2018
09/18

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PRI

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Topics: PRI, Public Radio International, The World

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Topics: Journal News/Close Up, Television Program

Source: Comcast Cable

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Vietnamese Broadcasting Network featuring World, US, Asia and Vietnamese news.

Topics: Saigon TV News, Television Program

Source: Comcast Cable

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Speeches from policy makers and coverage from around the country.

Topics: virginia, mr. gillespie, washington, warner, warner, iraq, isis, nato, syria, mark warner, fairfax,...

Source: Comcast Cable

Topics: san francisco, chiu, wiener, campos, avalos, ellis, farrell, john gibner

Source: Comcast Cable

Topics: san francisco, meridian

Source: Comcast Cable

Topics: san francisco, washington, california, brown, hinton, alzheimer

Source: Comcast Cable

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Speeches from policy makers and coverage from around the country.

Topics: ron barber, martha mcsally, washington, washington dc, mr. barber, paul ryan, va

Source: Comcast Cable

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National Security Agency Director Michael Rogers talks about his agency's priorities.

Topics: nsa, meade, nato, rogers, mike rogers

Source: Comcast Cable

Topics: rki, Radio Korea International, KBS World, English Service

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In-depth coverage of the top international stories. With John Seigenthaler.

Topics: kentucky, turkey, obamacare, obamacare, obama, duncan, oregon, ebola, mitch mcconnell, iraq, mike...

Source: Comcast Cable

Topics: chiu, farrell, cohen, san francisco, campos, seman, avalos

Source: Comcast Cable

Topics: Arlington, Massachusetts, Town Governance, Town Records

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Sep 22, 2017
09/17

by
CityPortStLucie

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A representative from the Humane Society of St. Lucie County regularly appears with an adoptable pet on the City of Port St. Lucie's government-access television program "PSL Living." For more information, contact the Humane Society of St. Lucie County at (772) 461-0687.

Topics: Florida, Port St. Lucie, Government Access TV, Community Media, PEG, Youtube, pets, cats, foster,...

Topics: news, homepages, screenshot

Topics: news, homepages, screenshot

Topics: news, homepages, screenshot

Sant'Elia nursery school is located in the San Rocco district, outside the historical center of Como..

Topics: Podcast, architettura, razionalismo, lago, como, novecento, architecture, rationalism, lake,...

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3.0

Jun 30, 2018
06/18

by
Matthew Chantry; Rich R Kerswell

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We consider a 9-PDE (1-space and 1-time) model of plane Couette flow in which the degrees of freedom are severely restricted in the streamwise and cross-stream directions to study spanwise localisation in detail. Of the many steady Eckhaus (spanwise modulational) instabilities identified of global steady states, none lead to a localized state. Localized periodic solutions were found instead which arise in saddle node bifurcations in the Reynolds number. These solutions appear global (domain...

Topics: Fluid Dynamics, Physics

Source: http://arxiv.org/abs/1410.2035

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3.0

Jun 30, 2018
06/18

by
A. Langari; A. Mohammad-Aghaei; R. Haghshenas

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We study the interplay between the Kitaev and Ising interactions on both ladder and two dimensional lattices. We show that the ground state of the Kitaev ladder is a symmetry-protected topological (SPT) phase, which is protected by a $\mathbb{Z}_2 \times \mathbb{Z}_2$ symmetry. It is confirmed by the degeneracy of the entanglement spectrum and non-trivial phase factors (inequivalent projective representations of the symmetries), which are obtained within infinite matrix-product representation...

Topics: Quantum Physics, Strongly Correlated Electrons, Condensed Matter

Source: http://arxiv.org/abs/1410.2025

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Jun 30, 2018
06/18

by
Ralf Toenjes; Igor M. Sokolov; Eugene B. Postnikov

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We present a detailed analysis of the eigenfunctions of the Fokker-Planck operator for the L\'evy-Ornstein-Uhlenbeck process, their asymptotic behavior and recurrence relations, explicit expressions in coordinate space for the special cases of the Ornstein-Uhlenbeck process with Gaussian and with Cauchy white noise and for the transformation kernel, which maps the fractional Fokker-Planck operator of the Cauchy-Ornstein-Uhlenbeck process to the non-fractional Fokker-Planck operator of the usual...

Topics: Mathematics, Mathematical Physics, Statistical Mechanics, Condensed Matter

Source: http://arxiv.org/abs/1410.2041

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Jun 30, 2018
06/18

by
Jianbin Liu; Minglan Le; Bin Bai; Wentao Wang; Hui Chen; Yu Zhou; Fu-Li Li; Zhuo Xu

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The second-order spatial and temporal interference patterns with two independent single-mode He-Ne lasers are observed in a Hong-Ou-Mandel interferometer. Two-photon interference in Feynman's path integral theory is employed to interpret the experimental results. The conditions to observe the second-order interference pattern with two independent single-mode continuous wave lasers are discussed. It is concluded that two-photon interference exists for not only identical photons, but also photons...

Topics: Physics, Quantum Physics, Optics

Source: http://arxiv.org/abs/1410.1993

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Jun 30, 2018
06/18

by
Lan Jiang; Sumeetpal S. Singh; Sinan Yıldırım

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We propose a new Bayesian tracking and parameter learning algorithm for non-linear non-Gaussian multiple target tracking (MTT) models. We design a Markov chain Monte Carlo (MCMC) algorithm to sample from the posterior distribution of the target states, birth and death times, and association of observations to targets, which constitutes the solution to the tracking problem, as well as the model parameters. In the numerical section, we present performance comparisons with several competing...

Topics: Applications, Computation, Machine Learning, Statistics

Source: http://arxiv.org/abs/1410.2046

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Jun 30, 2018
06/18

by
Adolfas Dargys; Arturas Acus

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Hamiltonian and eigenstate problem is formulated for a bilayer graphene in terms of Clifford's geometric algebra \textit{Cl}$_{3,1}$. It is shown that such approach allows to perform analytical calculations in a simple way if geometrical algebra rotors are used. The measured quantities are express through spectrum and rotation half-angle of the pseudospin that appears in geometric algebra rotors. Properties of free charge carriers -- pseudospin, velocity and Berry phase -- in a bilayer graphene...

Topics: Mesoscale and Nanoscale Physics, Condensed Matter

Source: http://arxiv.org/abs/1410.2038

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Jun 30, 2018
06/18

by
Guillaume Klughertz; Paul-Antoine Hervieux; Giovanni Manfredi

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The ability to control the magnetization switching in nanoscale devices is a crucial step for the development of fast and reliable techniques to store and process information. Here we show that the switching dynamics can be controlled efficiently using a microwave field with slowly varying frequency (autoresonance). This technique allowed us to reduce the applied field by more than $30%$ compared to competing approaches, with no need to fine-tune the field parameters. For a linear chain of...

Topics: Mesoscale and Nanoscale Physics, Condensed Matter

Source: http://arxiv.org/abs/1410.2003

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4.0

Jun 30, 2018
06/18

by
D. Gitman; A. Shabad

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We propose an identification of the free parameter in the model of nonlinear electrodynamics proposed in P. Gaete and J. Helayel-Neto, Eur. Phys. J. C 74, 2816 (2014) by equating the second term in the power expansion of its Lagrangian with that in the expansion of the Heiseberg-Euler Lagrangian. The resulting value of the field-energy of a point-like charge makes 0.988 of the electron mass, if the charge is that of the electron.

Topic: High Energy Physics - Theory

Source: http://arxiv.org/abs/1410.2097

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Jun 30, 2018
06/18

by
Hasan Yilmaz; Elbert G. van Putten; Jacopo Bertolotti; Ad Lagendijk; Willem L. Vos; Allard P. Mosk

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Fluorescence microscopy is indispensable in nanoscience and biological sciences. The versatility of labeling target structures with fluorescent dyes permits to visualize structure and function at a subcellular resolution with a wide field of view. Due to the diffraction limit, conventional optical microscopes are limited to resolving structures larger than 200 nm. The resolution can be enhanced by near-field and far-field super-resolution microscopy methods. Near-field methods typically have a...

Topics: Physics, Optics

Source: http://arxiv.org/abs/1410.2079

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4.0

Jun 30, 2018
06/18

by
Markus Klein; Andreas Prohl

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We consider an optimal control problem subject to the thin-film equation which is deduced from the Navier--Stokes equation. The PDE constraint lacks well-posedness for general right-hand sides due to possible degeneracies; state constraints are used to circumvent this problematic issue and to ensure well-posedness, and the rigorous derivation of necessary optimality conditions for the optimal control problem is performed. A multi-parameter regularization is considered which addresses both, the...

Topics: Mathematics, Analysis of PDEs, Optimization and Control

Source: http://arxiv.org/abs/1410.2077

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4.0

Jun 30, 2018
06/18

by
A. H. M. Kierkels; J. J. L. Velázquez

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We study the mathematical properties of a kinetic equation which describes the long time behaviour of solutions to the weak turbulence equation associated to the cubic nonlinear Schr\"odinger equation. In particular, we give a precise definition of weak solutions and prove global existence of solutions for all initial data with finite mass. We also prove that any nontrivial initial datum yields the instantaneous onset of a condensate, i.e. a Dirac mass at the origin for any positive time....

Topics: Mathematics, Mathematical Physics

Source: http://arxiv.org/abs/1410.2073

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Jun 30, 2018
06/18

by
Chiara Cammarota; Enzo Marinari

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The description of activated relaxation of glassy systems in the multidimensional configurational space is a long-standing open problem. We develop a phenomenological description of the out-of-equilibrium dynamics of a model with a rough potential energy landscape and we analyse it both numerically and analytically. The model provides an example of dynamics where typical relaxation channels go over finite potential energy barriers despite the presence of less-energy-demanding escaping paths in...

Topics: Statistical Mechanics, Soft Condensed Matter, Disordered Systems and Neural Networks, Condensed...

Source: http://arxiv.org/abs/1410.2116

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4.0

Jun 30, 2018
06/18

by
Chih-Hung Chang

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This paper investigates the $k$-mixing property of a multidimensional cellular automaton. Suppose $F$ is a cellular automaton with the local rule $f$ defined on a $d$-dimensional convex hull $\mathcal{C}$ which is generated by an apex set $C$. Then $F$ is $k$-mixing with respect to the uniform Bernoulli measure for all positive integer $k$ if $f$ is a permutation at some apex in $C$. An algorithm called the \emph{Mixing Algorithm} is proposed to verify if a local rule $f$ is permutive at some...

Topics: Mathematics, Computing Research Repository, Information Theory, Dynamical Systems

Source: http://arxiv.org/abs/1410.2144

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3.0

Jun 30, 2018
06/18

by
Kazuto Noda; Kensuke Inaba; Makoto Yamashita

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We theoretically study magnetic properties of two-component cold fermions in half-filled multilayer Lieb optical lattices, i.e., two, three, and several layers, using the dynamical mean-field theory. We clarify that the magnetic properties of this system become quite different depending on whether the number of layers is odd or even. In odd-number-th layers in an odd-number-layer system, finite magnetization emerges even with an infinitesimal interaction. This is a striking feature of the...

Topics: Quantum Gases, Strongly Correlated Electrons, Condensed Matter

Source: http://arxiv.org/abs/1410.2166

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4.0

Jun 30, 2018
06/18

by
Pablo Castellanos; Olivier Berné; Yaron Sheffer; Mark G. Wolfire; Alexander G. G. M. Tielens

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Recent studies have confirmed the presence of buckminsterfullerene (C$_{60}$) in different interstellar and circumstellar environments. However, several aspects regarding C$_{60}$ in space are not well understood yet, such as the formation and excitation processes, and the connection between C$_{60}$ and other carbonaceous compounds in the interstellar medium, in particular polycyclic aromatic hydrocarbons (PAHs). In this paper we study several photodissociation regions (PDRs) where C$_{60}$...

Topics: Astrophysics of Galaxies, Astrophysics

Source: http://arxiv.org/abs/1410.2106

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4.0

Jun 30, 2018
06/18

by
Christoph Kawan

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In this paper, time-dependent dynamical systems given by sequences of maps are studied. For systems built from expanding C^2-maps on a compact Riemannian manifold M with uniform bounds on expansion factors and derivatives, we provide formulas for the metric and topological entropy. If we only assume that the maps are C^1, but act in the same way on the fundamental group of M, we can show the existence of an equi-conjugacy to an autonomous system, implying a full variational principle for the...

Topics: Mathematics, Dynamical Systems

Source: http://arxiv.org/abs/1410.2199

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4.0

Jun 30, 2018
06/18

by
Mattia Talpo

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We generalize the construction of moduli spaces of parabolic sheaves given by Maruyama and Yokogawa in [MY92] to the case of a projective fine saturated log scheme with a fixed global chart. Furthermore we construct moduli spaces of parabolic sheaves without fixing the weights.

Topics: Mathematics, Algebraic Geometry

Source: http://arxiv.org/abs/1410.2212

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4.0

Jun 30, 2018
06/18

by
Diego Armentano; Carlos Beltrán; Michael Shub

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We describe two algorithms for the eigenvalue, eigenvector problem which, on input a Gaussian matrix with complex entries, finish with probability 1 and in average polynomial time.

Topics: Mathematics, Numerical Analysis

Source: http://arxiv.org/abs/1410.2179

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3.0

Jun 30, 2018
06/18

by
S. Caliskan; E. Caffau; P. Bonifacio; N. Christlieb; L. Monaco; T. C. Beers; B. Albayrak; L. Sbordone

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We report on a chemical-abundance analysis of two very metal-poor horizontal-branch stars in the Milky Way halo: CS 22186-005 ([Fe/H]=-2.70) and CS 30344-033 ([Fe/H]=-2.90). The analysis is based on high-resolution spectra obtained at ESO, with the spectrographs HARPS at the 3.6 m telescope, and UVES at the VLT. We adopted one-dimensional, plane-parallel model atmospheres assuming local thermodynamic equilibrium. We derived elemental abundances for 13 elements for CS 22186-005 and 14 elements...

Topics: Astrophysics, Solar and Stellar Astrophysics

Source: http://arxiv.org/abs/1410.2189

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3.0

Jun 30, 2018
06/18

by
Vladislav V. Serov; A. S. Kheifets

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We analyze a transfer ionization (TI) reaction in the fast proton-helium collision $\rm H^+ + He \to H^0 + He^{2+} + e^-$ by solving a time-dependent Schr\"odinger equation (TDSE) under the classical projectile motion approximation in one-dimensional kinematics. In addition, we construct various time independent analogues of our model using lowest order perturbation theory in the form of the Born series. By comparing various aspects of the TDSE and the Born series calculations, we conclude...

Topics: Physics, Quantum Physics, Atomic Physics

Source: http://arxiv.org/abs/1410.2204

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3.0

Jun 30, 2018
06/18

by
Alex Geringer-Sameth; Savvas M. Koushiappas; Matthew G. Walker

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We present a new formalism designed to discover dark matter annihilation occurring in the Milky Way's dwarf galaxies. The statistical framework extracts all available information in the data by simultaneously combining observations of all the dwarf galaxies and incorporating the impact of particle physics properties, the distribution of dark matter in the dwarfs, and the detector response. The method performs maximally powerful frequentist searches and produces confidence limits on particle...

Topics: Physics, Data Analysis, Statistics and Probability, Astrophysics, Astrophysics of Galaxies, High...

Source: http://arxiv.org/abs/1410.2242

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3.0

Jun 30, 2018
06/18

by
ALICE Collaboration

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We report on the production of inclusive $\Upsilon$(1S) and $\Upsilon$(2S) in p-Pb collisions at $\sqrt{s_{\rm NN}}=5.02$ TeV at the LHC. The measurement is performed with the ALICE detector at backward ($-4.46 < y_{{\rm cms}}

Topic: Nuclear Experiment

Source: http://arxiv.org/abs/1410.2234

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6.0

Jun 30, 2018
06/18

by
Thiago Bomfim; Paulo Varandas

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In this paper we introduce a notion of free energy and large deviations rate function for asymptotically additive sequences of potentials via an approximation method by families of continuous potentials. We provide estimates for the topological pressure of the set of points whose non-additive sequences are far from the limit described through Kingman's sub-additive ergodic theorem and give some applications in the context of Lyapunov exponents for diffeomorphisms and cocycles, and...

Topics: Mathematics, Dynamical Systems

Source: http://arxiv.org/abs/1410.2220

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3.0

Jun 30, 2018
06/18

by
Florent Leclercq

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Analysis of three-dimensional cosmological surveys has the potential to answer outstanding questions on the initial conditions from which structure appeared, and therefore on the very high energy physics at play in the early Universe. We report on recently proposed statistical data analysis methods designed to study the primordial large-scale structure via physical inference of the initial conditions in a fully Bayesian framework, and applications to the Sloan Digital Sky Survey data release 7....

Topics: Astrophysics, Cosmology and Nongalactic Astrophysics

Source: http://arxiv.org/abs/1410.2271

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3.0

Jun 30, 2018
06/18

by
L. C. Gallo; D. R. Wilkins; K. Bonson; C-Y. Chiang; D. Grupe; M. L. Parker; A. Zoghbi; A. C. Fabian; S. Komossa; A. L. Longinotti

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We report on the deepest X-ray observation of the narrow-line Seyfert 1 galaxy Mrk 335 in the low-flux state obtained with Suzaku. The data are compared to a 2006 high-flux Suzaku observation when the source was ~10-times brighter. Describing the two flux levels self-consistently with partial covering models would require extreme circumstances, as the source would be subject to negligible absorption during the bright state and ninety-five per cent covering with near Compton-thick material when...

Topics: High Energy Astrophysical Phenomena, Astrophysics

Source: http://arxiv.org/abs/1410.2330

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4.0

Jun 30, 2018
06/18

by
M. Ashok Kumar; Rajesh Sundaresan

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Minimization problems with respect to a one-parameter family of generalized relative entropies are studied. These relative entropies, which we term relative $\alpha$-entropies (denoted $\mathscr{I}_{\alpha}$), arise as redundancies under mismatched compression when cumulants of compressed lengths are considered instead of expected compressed lengths. These parametric relative entropies are a generalization of the usual relative entropy (Kullback-Leibler divergence). Just like relative entropy,...

Topics: Mathematics, Computing Research Repository, Information Theory, Statistics Theory, Statistics

Source: http://arxiv.org/abs/1410.2346

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5.0

Jun 30, 2018
06/18

by
Jan Wehr; Aramian Wasielak

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We study ground states of Ising models with random ferromagnetic couplings, proving the triviality of all zero-temperature metastates. This unexpected result sheds a new light on the properties of these systems, putting strong restrictions on their possible ground state structure. Open problems related to existence of interface-supporting ground states are stated and an interpretation of the main result in terms of first-passage and random surface models in a random environment is presented.

Topics: Mathematics, Mathematical Physics

Source: http://arxiv.org/abs/1410.2283

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3.0

Jun 30, 2018
06/18

by
T. S. Tavares; G. A. P. Ribeiro

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We study the magnetocaloric effect for the integrable antiferromagnetic Heisenberg spin chain with competing interactions. We computed the Gr\"uneisen parameter, which is closely related to the magnetocaloric effect, for the quantum spin chain in the thermodynamical limit. This is obtained by means of the solution of a set of non-linear integral equations, which describes the thermodynamics of the model. We also provide results for the entropy $S$ and the isentropes in the $(H,T)$ plane.

Topics: Strongly Correlated Electrons, Statistical Mechanics, Condensed Matter

Source: http://arxiv.org/abs/1410.2460

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3.0

Jun 30, 2018
06/18

by
He Song; Kai-Nan Xiang; Song-Chao-Hao Zhu

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Let $\{G_n\}_{n=1}^{\infty}$ be a sequence of transitive infinite connected graphs with $\sup\limits_{n\geq 1} p_c(G_n) < 1,$ where each $p_c(G_n)$ is bond percolation critical probability on $G_n.$ Schramm (2008) conjectured that if $G_n$ converges locally to a transitive infinite connected graph $G,$ then $p_c(G_n) \rightarrow p_c(G)$ as $n\rightarrow\infty.$ We prove the conjecture when $G$ satisfies two rough uniformities, and $\{G_n\}_{n=1}^{\infty}$ is uniformly nonamenable.

Topics: Probability, Mathematics

Source: http://arxiv.org/abs/1410.2453

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5.0

Jun 30, 2018
06/18

by
Marian C. Ghilea

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The orbits of the confirmed exoplanets from all multiple systems known to date are investigated. Observational data from 1890 objects, of which 1176 are found in multiplanetary systems, are compiled and analyzed. Mean motion resonances and near-resonances up to the outer/inner orbital period ratio's value of 5 and the denominator 4 are tested for all adjacent exoplanet orbits. Each host star's snow line is calculated using a simple algorithm. The planets are reclassified into categories as a...

Topics: Earth and Planetary Astrophysics, Astrophysics, General Relativity and Quantum Cosmology

Source: http://arxiv.org/abs/1410.2478

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7.0

Oct 23, 2015
10/15

by
Wikimedia projects editors

web

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This is the incremental dump files for the Interlingua Wiktionary that is generated by the Wikimedia Foundation on October 08, 2014.

Topics: wiki, incremental, dumps, iawiktionary, Interlingua, Wiktionary

Topic: san francisco

Source: Comcast Cable