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7.0
Jun 30, 2018
06/18
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A. Mohammadi; E. R. Bezerra de Mello; A. A. Saharian
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We investigate the vacuum fermionic currents in the geometry of a compactified cosmic string on background of de Sitter spacetime. The currents are induced by magnetic fluxes running along the cosmic string and enclosed by the compact dimension. We show that the vacuum charge and the radial component of the current density vanish. By using the Abel-Plana summation formula, the azimuthal and axial currents are explicitly decomposed into two parts: the first one corresponds to the geometry of a...
Topics: High Energy Physics - Theory, General Relativity and Quantum Cosmology
Source: http://arxiv.org/abs/1407.8095
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49
Jun 30, 2018
06/18
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A. O. Smirnov; E. G. Semenova; V. Zinger; N. Zinger
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A periodic two-phase algebro-geometric solution of the focusing nonlinear Schr\"odinger equation is constructed in terms of elliptic Jacobi theta-functions. A dependence of this solution on the parameters of a spectral curve is investigated. An existence of a real smooth finite-gap solution of NLS equation with complex initial phase is proven. Degenerations of the constructed solution to one-phase traveling wave solution and solutions in the form of the plane waves are carried.
Topics: Mathematics, Nonlinear Sciences, Exactly Solvable and Integrable Systems, Mathematical Physics,...
Source: http://arxiv.org/abs/1407.7974
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Jun 30, 2018
06/18
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A. de Paz; B. Naylor; J. Huckans A. Carrance; O. Gorceix; E. Marechal; P. Pedri; B. Laburthe-Tolra; L. Vernac
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We experimentally study the spin dynamics of mesoscopic ensembles of ultracold magnetic spin-3 atoms located in two separated wells of an optical dipole trap. We use a radio-frequency sweep to selectively flip the spin of the atoms in one of the wells, which produces two separated spin domains of opposite polarization. We observe that these engineered spin domains are metastable with respect to the long-range magnetic dipolar interactions between the two ensembles. The absence of inter-cloud...
Topics: Physics, Quantum Gases, Atomic Physics, Quantum Physics, Condensed Matter
Source: http://arxiv.org/abs/1407.8130
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7.0
Jun 30, 2018
06/18
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Aitor Lewkowycz; Eric Perlmutter
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We derive several new results for Renyi entropy, $S_n$, across generic entangling surfaces. We establish a perturbative expansion of the Renyi entropy, valid in generic quantum field theories, in deformations of a given density matrix. When applied to even-dimensional conformal field theories, these results lead to new constraints on the $n$-dependence, independent of any perturbative expansion. In 4d CFTs, we show that the $n$-dependence of the universal part of the ground state Renyi entropy...
Topic: High Energy Physics - Theory
Source: http://arxiv.org/abs/1407.8171
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Oct 7, 2014
10/14
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Akizuki, Kazunori; Yazaki, Syouichirou; Echizenya, Yuki; Ohashi, Yukari
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This article is from Journal of Physical Therapy Science , volume 26 . Abstract [Purpose] The purpose of this study was to clarify the validity of salivary α-amylase as a method of quickly estimating anaerobic threshold and to establish the relationship between salivary α-amylase and double-product breakpoint in order to create a way to adjust exercise intensity to a safe and effective range. [Subjects and Methods] Eleven healthy young adults performed an incremental exercise test using a...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4135198
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Oct 6, 2014
10/14
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Barrios, Vivencio; Escobar, Carlos
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This article is from Integrated Blood Pressure Control , volume 7 . Abstract Combined therapy is required in the majority of patients with hypertension to achieve blood pressure (BP) targets. Although different antihypertensive drugs can be combined, not all combinations are equally effective and safe. In this context, the combination of a renin angiotensin system inhibitor with a diuretic, usually a thiazide, particularly hydrochlorothiazide (HCTZ) or thiazide-like diuretics, such as...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4142573
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Oct 8, 2014
10/14
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Becker, C.; Wyss, P.; Eisenhauer, D.; Probst, J.; Preidel, V.; Hammerschmidt, M.; Burger, S.
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This article is from Scientific Reports , volume 4 . Abstract Crystalline silicon photonic crystal slabs are widely used in various photonics applications. So far, the commercial success of such structures is still limited owing to the lack of cost-effective fabrication processes enabling large nanopatterned areas (≫ 1 cm2). We present a simple method for producing crystalline silicon nanohole arrays of up to 5 × 5 cm2 size with lattice pitches between 600 and 1000 nm on glass and...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115234
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Oct 11, 2014
10/14
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Blaho, Miklos; Herczeg, Tamas; Kriska, Gyorgy; Egri, Adam; Szaz, Denes; Farkas, Alexandra; Tarjanyi, Nikolett; Czinke, Laszlo; Barta, Andras; Horvath, Gabor
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This article is from PLoS ONE , volume 9 . Abstract The horizontally polarizing surface parts of shiny black cars (the reflection-polarization characteristics of which are similar to those of water surfaces) attract water-leaving polarotactic insects. Thus, shiny black cars are typical sources of polarized light pollution endangering water-leaving insects. A new fashion fad is to make car-bodies matt black or grey. Since rough (matt) surfaces depolarize the reflected light, one of the ways of...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116178
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3.0
Jun 30, 2018
06/18
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Bruno Rousseau; François Lapointe; Minh Nguyen; Maxime Biron; Etienne Gaufrès; Saman Choubak; Zheng Han; Vincent Bouchiat; Patrick Desjardins; Michel Côté; Richard Martel
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Herein, intervalley scattering is exploited to account for anomalous antiresonances in the infrared spectra of doped and disordered single layer graphene. We present infrared spectroscopy measurements of graphene grafted with iodophenyl moieties in both reflection microscopy and transmission configurations. Asymmetric transparency windows at energies corresponding to phonon modes near the {\Gamma} and K points are observed, in contrast to the featureless spectrum of pristine graphene. These...
Topics: Mesoscale and Nanoscale Physics, Materials Science, Condensed Matter
Source: http://arxiv.org/abs/1407.8141
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59
Oct 7, 2014
10/14
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Couch, Robert B; Bayas, Jose M; Caso, Covadonga; Mbawuike, Innocent Nnadi; Lopez, Concepcion Nunez; Claeys, Carine; El Idrissi, Mohamed; Herve, Caroline; Laupeze, Beatrice; Oostvogels, Lidia; Moris, Philippe
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This article is from BMC Infectious Diseases , volume 14 . Abstract Background: The effectiveness of trivalent influenza vaccines may be reduced in older versus younger adults because of age-related immunosenescence. The use of an adjuvant in such a vaccine is one strategy that may combat immunosenescence, potentially by bolstering T-cell mediated responses. Methods: This observer-blind study, conducted in the United States (US) and Spain during the 2008–2009 influenza season, evaluated the...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138369
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3.0
Jun 30, 2018
06/18
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D. J. Hepburn; E. MacLeod; G. J. Ackland
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We present a comprehensive set of first principles electronic structure calculations to study transition metal solutes and their interactions with point defects in austenite. Clear trends were observed across the series. Solute-defect interactions were strongly correlated to the solute size factors, consistent with local strain field effects. Strong correlations with results in ferrite show insensitivity to the underlying crystal structure in Fe. Oversized solutes act as strong traps for...
Topics: Materials Science, Condensed Matter
Source: http://arxiv.org/abs/1407.7996
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4.0
Jun 30, 2018
06/18
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Daniel Kimball; Elizabeth Michel; Paul Keltcher; Michael M. Wolf
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Sparse matrix-vector multiplication (SpMV) is the core operation in many common network and graph analytics, but poor performance of the SpMV kernel handicaps these applications. This work quantifies the effect of matrix structure on SpMV performance, using Intel's VTune tool for the Sandy Bridge architecture. Two types of sparse matrices are considered: finite difference (FD) matrices, which are structured, and R-MAT matrices, which are unstructured. Analysis of cache behavior and prefetcher...
Topics: Distributed, Parallel, and Cluster Computing, Performance, Numerical Analysis, Computing Research...
Source: http://arxiv.org/abs/1407.8168
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Oct 5, 2014
10/14
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Diaz-Perez, Julio A.; Raju, Sharat; Echeverri, Jorge H.
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This article is from Journal of Pathology Informatics , volume 5 . Abstract Background:: Learning pathology is fundamental for a successful medical practice. In recent years, medical education has undergone a profound transformation toward the development of an integrated curriculum incorporating both basic science and clinical material. Simultaneously, there has been a shift from a magisterial teaching approach to one centered around problem-based learning. Now-a-days, informatics tools are...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4141419
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5.0
Jun 30, 2018
06/18
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E R Stanway; A J Levan; Luke J M Davies
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We present 5.5 and 9.0 GHz observations of a sample of seventeen GRB host galaxies at 0.5
Topics: Astrophysics of Galaxies, High Energy Astrophysical Phenomena, Astrophysics
Source: http://arxiv.org/abs/1407.8180
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Jun 30, 2018
06/18
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E. Costa; R. Diógenes; E. Ribeiro
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In a remarkable article published in 1982, M. Gromov introduced the concept of minimal volume, namely, the minimal volume of a manifold $M^n$ is defined to be the greatest lower bound of the total volumes of $M^n$ with respect to complete Riemannian metrics whose sectional curvature is bounded above in absolute value by 1. While the minimal curvature, introduced by G. Yun in 1996, is the smallest pinching of the sectional curvature among metrics of volume 1. The goal of this article is to...
Topics: Mathematics, Differential Geometry, Geometric Topology
Source: http://arxiv.org/abs/1407.8137
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3.0
Jun 30, 2018
06/18
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E. Nicklas; W. Muessel; H. Strobel; P. G. Kevrekidis; M. K. Oberthaler
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The dynamical evolution of spatial patterns in a complex system can reveal the underlying structure and stability of stationary states. As a model system we employ a two-component rubidium Bose-Einstein condensate at the transition from miscible to immiscible with the additional control of linear interconversion. Excellent agreement is found between the detailed experimental time evolution and the corresponding numerical mean-field computations. Analyzing the dynamics of the system, we find...
Topics: Quantum Gases, Nonlinear Sciences, Pattern Formation and Solitons, Condensed Matter
Source: http://arxiv.org/abs/1407.8049
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53
Oct 11, 2014
10/14
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Eduardo, Eduard; Lamb, Matthew R.; Kandula, Sasi; Howard, Andrea; Mugisha, Veronicah; Kimanga, Davies; Kilama, Bonita; El-Sadr, Wafaa; Elul, Batya
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This article is from PLoS ONE , volume 9 . Abstract Background: Limited information exists on adults ≥50 years receiving HIV care in sub-Saharan Africa. Methodology: Using routinely-collected longitudinal patient-level data among 391,111 adults ≥15 years enrolling in HIV care from January 2005–December 2010 and 184,689 initiating ART, we compared characteristics and outcomes between older (≥50 years) and younger adults at 199 clinics in Kenya, Mozambique, Rwanda, and Tanzania. We...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116238
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Oct 11, 2014
10/14
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Egekwu, Noble; Sonenshine, Daniel E.; Bissinger, Brooke W.; Roe, R. Michael
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This article is from PLoS ONE , volume 9 . Abstract Illumina and 454 pyrosequencing were used to characterize genes from the synganglion of female Ixodes scapularis. GO term searching success for biological processes was similar for samples sequenced by both methods. However, for molecular processes, it was more successful for the Illumina samples than for 454 samples. Functional assignments of transcripts predicting neuropeptides, neuropeptide receptors, neurotransmitter receptors and other...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116169
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5.0
Jun 30, 2018
06/18
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Elizabeth N. Davison; Kimberly J. Schlesinger; Danielle S. Bassett; Mary-Ellen Lynall; Michael B. Miller; Scott T. Grafton; Jean M. Carlson
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Activity in the human brain moves between diverse functional states to meet the demands of our dynamic environment, but fundamental principles guiding these transitions remain poorly understood. Here, we capitalize on recent advances in network science to analyze patterns of functional interactions between brain regions. We use dynamic network representations to probe the landscape of brain reconfigurations that accompany task performance both within and between four cognitive states: a...
Topics: Quantitative Biology, Neurons and Cognition
Source: http://arxiv.org/abs/1407.8234
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4.0
Jun 30, 2018
06/18
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Emanuela Dimastrogiovanni; Matteo Fasiello; Donghui Jeong; Marc Kamionkowski
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Inflation models make specific predictions for a tensor-scalar-scalar three-point correlation, or bispectrum, between one gravitational-wave (tensor) mode and two density-perturbation (scalar) modes. This tensor-scalar-scalar correlation leads to a local power quadrupole, an apparent departure from statistical isotropy in our Universe, as well as characteristic four-point correlations in the current mass distribution in the Universe. So far, the predictions for these observables have been...
Topics: High Energy Physics - Theory, Astrophysics, General Relativity and Quantum Cosmology, Cosmology and...
Source: http://arxiv.org/abs/1407.8204
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57
Jun 30, 2018
06/18
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Emma Carberry; Martin Ulrich Schmidt
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Constant mean curvature (CMC) tori in Euclidean 3-space are described by an algebraic curve, called the spectral curve, together with a line bundle on this curve and a point on $ S ^ 1 $, called the Sym point. For a given spectral curve the possible choices of line bundle and Sym point are easily described. The space of spectral curves of tori is totally disconnected. Hence to characterise the "moduli space" of CMC tori one should, for each genus $g$, determine the closure...
Topics: Mathematics, Differential Geometry
Source: http://arxiv.org/abs/1407.7986
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5.0
Jun 30, 2018
06/18
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Eric V. Linder
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eye 5
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Modified gravity theories on cosmic scales have three key deviations from general relativity. They can cause cosmic acceleration without a physical, highly negative pressure fluid, can cause a gravitational slip between the two metric potentials, and can cause gravitational waves to propagate differently, e.g. with a speed different from the speed of light. We examine whether the deviations in the metric potentials as observable through modified Poisson equations for scalar density...
Topics: Astrophysics, General Relativity and Quantum Cosmology, Cosmology and Nongalactic Astrophysics
Source: http://arxiv.org/abs/1407.8184
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Oct 11, 2014
10/14
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Escalera-Zamudio, Marina; Nelson, Martha I.; Cobian Guemes, Ana Georgina; Lopez-Martinez, Irma; Cruz-Ortiz, Natividad; Iguala-Vidales, Miguel; Garcia, Elvia Rodriguez; Barrera-Badillo, Gisela; Diaz-Quinonez, Jose Alberto; Lopez, Susana; Arias, Carlos F.; Isa, Pavel
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This article is from PLoS ONE , volume 9 . Abstract In this work, nineteen influenza A/H3N2 viruses isolated in Mexico between 2003 and 2012 were studied. Our findings show that different human A/H3N2 viral lineages co-circulate within a same season and can also persist locally in between different influenza seasons, increasing the chance for genetic reassortment events. A novel minor cluster was also identified, named here as Korea, that circulated worldwide during 2003. Frequently,...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116128
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8.0
Jun 30, 2018
06/18
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Etele Molnar; Hannu Holopainen; Pasi Huovinen; Harri Niemi
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We explore the influence of a temperature-dependent shear viscosity over entropy density ratio $\eta/s$ on the azimuthal anisotropies v_2 and v_4 of hadrons at various rapidities. We find that in Au+Au collisions at full RHIC energy, $\sqrt{s_{NN}}=200$ GeV, the flow anisotropies are dominated by hadronic viscosity at all rapidities, whereas in Pb+Pb collisions at the LHC energy, $\sqrt{s_{NN}}=2760$ GeV, the flow coefficients are affected by the viscosity both in the plasma and hadronic phases...
Topics: High Energy Physics - Phenomenology, Nuclear Experiment, Nuclear Theory
Source: http://arxiv.org/abs/1407.8152
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4.0
Jun 30, 2018
06/18
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Eugenio Megias; Debora P. Menezes; Airton Deppman
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We derive the nonextensive thermodynamics of an ideal quantum gas composed by bosons and/or fermions with finite chemical potentials. We find agreement with previous works when $\mu \le m$, and some inconsistencies are corrected for fermions when $\mu > m$. This formalism is then used to study the thermodynamical properties of hadronic systems based on a Hadron Resonance Gas approach. We apply this result to study the protoneutron star stability under several conditions.
Topics: High Energy Physics - Phenomenology, Nuclear Theory
Source: http://arxiv.org/abs/1407.8044
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3.0
Jun 30, 2018
06/18
by
Eyo Ita; Chopin Soo
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eye 3
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Exact solutions of the Wheeler-DeWitt equation of the full theory of four dimensional gravity of Lorentzian signature are obtained. They are characterized by Schr\"odinger wavefunctionals having support on 3-metrics of constant spatial scalar curvature, and thus contain two full physical field degrees of freedom in accordance with the Yamabe construction. These solutions are moreover Gaussians of minimum uncertainty and they are naturally associated with a rigged Hilbert space. In...
Topic: General Relativity and Quantum Cosmology
Source: http://arxiv.org/abs/1408.0710
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5.0
Jun 30, 2018
06/18
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Ezequiel E. Ferrero; Kirsten Martens; Jean-Louis Barrat
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We study consequences of long-range elasticity in thermally assisted dynamics of yield stress materials. Within a two-dimensinal mesoscopic model we calculate the mean-square displacement and the dynamical structure factor for tracer particle trajectories. The ballistic regime at short time scales is associated with a compressed exponential decay in the dynamical structure factor, followed by a subdiffusive crossover prior to the onset of diffusion. We relate this crossover to spatiotemporal...
Topics: Statistical Mechanics, Soft Condensed Matter, Disordered Systems and Neural Networks, Condensed...
Source: http://arxiv.org/abs/1407.8014
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Oct 10, 2014
10/14
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Fazel, Ramin; Zarei, Najmeh; Ghaemi, Nasser; Namvaran, Mohammad Mehdi; Enayati, Somayeh; Mirabzadeh Ardakani, Esmat; Azizi, Mohammad; Khalaj, Vahid
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This article is from SpringerPlus , volume 3 . Abstract Urate oxidase is an important enzyme with therapeutic and diagnostic applications. Rasburicase is a recombinant urate oxidase enzyme approved by FDA to use in the treatment of hyperuricemia conditions. Various hosts such as Saccharomyces cerevisiae, Hansenula polymorpha and Escherichia coli have been used to express the enzyme. Today, Pichia pastoris is considered as an important host for heterologous protein expression since it has...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4124111
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4.0
Jun 30, 2018
06/18
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Friedrich Knop; Bernhard Krötz; Eitan Sayag; Henrik Schlichtkrull
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We apply the local structure theorem and the polar decomposition to a real spherical space Z=G/H and control the volume growth on Z. We define the Harish-Chandra Schwartz space on Z. We give a geometric criterion to ensure $L^p$-integrability of matrix coefficients on Z.
Topics: Mathematics, Representation Theory
Source: http://arxiv.org/abs/1407.8006
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12
Jun 30, 2018
06/18
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G. A. Beer; Y. Fujiwara; S. Hirota; K. Ishida; M. Iwasaki; S. Kanda; H. Kawai; N. Kawamura; R. Kitamura; S. Lee; W. Lee G. M. Marshall; T. Mibe; Y. Miyake; S. Okada; K. Olchanski; A. Olin; Y. Oishi; H. Onishi; M. Otani; N. Saito; K. Shimomura; P. Strasser; M. Tabata; D. Tomono; K. Ueno; K. Yokoyama; E. Won
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Emission of muonium ($\mu^+e^-$) atoms from a laser-processed aerogel surface into vacuum was studied for the first time. Laser ablation was used to create hole-like regions with diameter of about 270$~\mu$m in a triangular pattern with hole separation in the range of 300--500$~\mu$m. The emission probability for the laser-processed aerogel sample is at least eight times higher than for a uniform one.
Topics: Physics, High Energy Physics - Experiment, Atomic Physics, Instrumentation and Detectors
Source: http://arxiv.org/abs/1407.8248
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Oct 8, 2014
10/14
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Gillies, Katie; Elwyn, Glyn; Cook, Jonathan
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This article is from Trials , volume 15 . Abstract Background: Informed consent of trial participants is both an ethical and a legal requirement. When facing a decision about trial participation, potential participants are provided with information about the trial and have the opportunity to have any questions answered before their degree of ‘informed-ness’ is assessed, usually subjectively, and before they are asked to sign a consent form. Currently, standardised methods for assessing...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131044
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Oct 10, 2014
10/14
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Hafstrom, Ingiald; Engvall, Inga-Lill; Ronnelid, Johan; Boonen, Annelies; van der Heijde, Desiree; Svensson, Bjorn
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This article is from BMJ Open , volume 4 . Abstract Objective: To analyse if predictors of radiographic progression differ between patients treated with or without prednisolone in early rheumatoid arthritis (RA). Radiographs of hands and feet were assessed using the modified Sharp/van der Heijde score and radiographic progression was defined as an increase in the total Sharp score above 5.8 (the smallest detectable change). Design: Prospective, randomised study of patients with early RA....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4120364
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5.0
Jun 30, 2018
06/18
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Haris Aziz; Markus Brill; Vincent Conitzer; Edith Elkind; Rupert Freeman; Toby Walsh
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We consider approval-based committee voting, i.e. the setting where each voter approves a subset of candidates, and these votes are then used to select a fixed-size set of winners (committee). We propose a natural axiom for this setting, which we call justified representation (JR). This axiom requires that if a large enough group of voters exhibits agreement by supporting the same candidate, then at least one voter in this group has an approved candidate in the winning committee. We show that...
Topics: Computer Science and Game Theory, Multiagent Systems, Computing Research Repository
Source: http://arxiv.org/abs/1407.8269
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64
Oct 11, 2014
10/14
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Harper, Diane M.; Else, Britney M.; Bartley, Mitchell J.; Arey, Anne M.; Barnett, Angela L.; Rosemergey, Beth E.; Paynter, Christopher A.; Verdenius, Inge; Harper, Sean M.; Harris, George D.; Groner, Jennifer A.; Malnar, Gerard J.; Wall, Jeffrey; Bonham, Aaron J.
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This article is from PLoS ONE , volume 9 . Abstract Objectives: Obesity adversely inhibits antibody response to vaccination. Three doses of HPV4 may or may not provide adequate long term protection against HPV 16/18 in obese females. The aim of this study was to determine whether adherence to HPV4 vaccination in a safety net population was reduced with increasing body mass index (BMI). Methods: We designed a historical prospective study evaluating the number and dates of HPV4 dosing that...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116139
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8.0
Jun 30, 2018
06/18
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Hilding R. Neilson; Alexandra C. Bisol; Ed Guinan; Scott Engle
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Measurements of secular period change probe real-time stellar evolution of classical Cepheids making these measurements powerful constraints for stellar evolution models, especially when coupled with interferometric measurements. In this work, we present stellar evolution models and measured rates of period change for two Galactic Cepheids: Polaris and l Carinae, both important Cepheids for anchoring the Cepheid Leavitt law (period-luminosity relation). The combination of previously-measured...
Topics: Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.8098
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Oct 8, 2014
10/14
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Hsu, Clarissa; Sherman, Karen J; Eaves, Emery R; Turner, Judith A; Cherkin, Daniel C; Cromp, DeAnn; Schafer, Lisa; Ritenbaugh, Cheryl
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This article is from BMC Complementary and Alternative Medicine , volume 14 . Abstract Background: Positive patient expectations are often believed to be associated with greater benefits from complementary and alternative medicine (CAM) treatments. However, clinical studies of CAM treatments for chronic pain have not consistently supported this assumption, possibly because of differences in definitions and measures of expectations. The goal of this qualitative paper is to provide new...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129105
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27
Jun 30, 2018
06/18
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Hua Zhou; Jin Zhou; Tao Hu; Eric M Sobel; Kenneth Lange
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Pedigree GWAS (Option 29) in the current version of the Mendel software is an optimized subroutine for performing large scale genome-wide QTL analysis. This analysis (a) works for random sample data, pedigree data, or a mix of both, (b) is highly efficient in both run time and memory requirement, (c) accommodates both univariate and multivariate traits, (d) works for autosomal and x-linked loci, (e) correctly deals with missing data in traits, covariates, and genotypes, (f) allows for covariate...
Topics: Populations and Evolution, Applications, Quantitative Biology, Statistics, Genomics
Source: http://arxiv.org/abs/1407.8259
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8.0
Jun 30, 2018
06/18
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Hua Zhou; John Blangero; Thomas D. Dyer; Kei-hang K. Chan; Kenneth Lange; Eric M. Sobel
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Since most analysis software for genome-wide association studies (GWAS) currently exploit only unrelated individuals, there is a need for efficient applications that can handle general pedigree data or mixtures of both population and pedigree data. Even data sets thought to consist of only unrelated individuals may include cryptic relationships that can lead to false positives if not discovered and controlled for. In addition, family designs possess compelling advantages. They are better...
Topics: Applications, Computation, Quantitative Biology, Statistics, Genomics, Populations and Evolution
Source: http://arxiv.org/abs/1407.8253
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137
Oct 8, 2014
10/14
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Iwelunmor, Juliet; Ezeanolue, Echezona E; Airhihenbuwa, Collins O; Obiefune, Michael C; Ezeanolue, Chinenye O; Ogedegbe, Gbenga G
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This article is from BMC Public Health , volume 14 . Abstract Background: Currently, Nigeria alone accounts for 30% of the burden of mother-to-child transmission of HIV. This review explores the socio-cultural factors influencing prevention of mother-to-child transmission of HIV (PMTCT) service uptake in Nigeria. Methods: Using the PEN-3 cultural model as a guide, we searched electronic databases and conducted a synthesis of empirical studies conducted from 2001 to 2013 that reported the...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4133635
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3.0
Jun 30, 2018
06/18
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J. Vural; S. Kraus; A. Kreplin; G. Weigelt; E. Fossat; F. Massi; K. Perraut; F. Vakili
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Context: The structure of the inner disk of Herbig Be stars is not well understood. The continuum disks of several Herbig Be stars have inner radii that are smaller than predicted by models of irradiated disks with optically thin holes. Aims: We study the size of the inner disk of the Herbig B[e] star HD 85567 and compare the model radii with the radius suggested by the size-luminosity relation. Methods: The object was observed with the AMBER instrument of the Very Large Telescope...
Topics: Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.8190
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4.0
Jun 30, 2018
06/18
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Jake P. Taylor-King; Emiel van Loon; Gabriel Rosser; S. Jon Chapman
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There are various cases of animal movement where behaviour broadly switches between two modes of operation, corresponding to a long distance movement state and a resting or local movement state. Here a mathematical description of this process is formulated, adapted from Friedrich et. al. (2006). The approach allows the specification any running or waiting time distribution along with any angular and speed distributions. The resulting system of partial integro-differential equations are...
Topics: Quantitative Methods, Quantitative Biology
Source: http://arxiv.org/abs/1407.8177
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3.0
Jun 30, 2018
06/18
by
Joachim Brod; Jure Drobnak; Alexander L. Kagan; Emmanuel Stamou; Jure Zupan
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We show that a new strongly interacting sector can produce large enhancements of the t-tbar asymmetries at the Tevatron. The Standard Model is extended by a new vector-like flavor triplet of fermions and one heavy scalar, all charged under a hypercolor gauge group SU(3) HC. This simple extension results in a number of new resonances. The predictions of our model are rather rigid once a small number of UV parameters are fixed, since all the strong dynamics can be directly taken over from our...
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1407.8188
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20
Oct 5, 2014
10/14
by
Karekezi, C.; Egu, K.; Djoubairou, B. O.; Boutarbouch, M.; Ouahabi, A. El
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This article is from Surgical Neurology International , volume 5 . Abstract Background:: Schwannomas are tumors of peripheral nerves that develop from the nerve sheath. Foraminal schwannomas are rare and account for 1-5% of all spinal schwannomas. The lumbosacral root schwannoma is a rare cause of sciatica and may raise confusion in diagnosis with late discovery of the tumor. Case Description:: We report the case of a patient 30 years of age with chronic left sciatica in whom lumbosacral...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138822
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7.0
Jun 30, 2018
06/18
by
L. Zheng; E. C. Aschenauer; J. H. Lee
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eye 7
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There are a large number of physics programs one can explore in electron-nucleus collisions at a future electron-ion collider. Collision geometry is very important in these studies, while the measurement for an event-by-event geometric control is rarely discussed in the prior deep inelastic scattering experiments off a nucleus. This paper seeks to provide some detailed studies on the potential of tagging collision geometries through forward neutron multiplicity measurements with a zero degree...
Topics: Instrumentation and Detectors, Physics, High Energy Physics - Phenomenology, Nuclear Experiment,...
Source: http://arxiv.org/abs/1407.8055
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6.0
Jun 30, 2018
06/18
by
LHCb collaboration; R. Aaij; B. Adeva; M. Adinolfi; A. Affolder; Z. Ajaltouni; S. Akar; J. Albrecht; F. Alessio; M. Alexander; S. Ali; K. Carvalho Akiba; G. Casse; L. Cassina; L. Castillo Garcia; M. Cattaneo; Ch. Cauet; R. Cenci; M. Charles; Ph. Charpentier; S. Chen; G. Alkhazov; S. -F. Cheung; N. Chiapolini; M. Chrzaszcz; K. Ciba; X. Cid Vidal; G. Ciezarek; P. E. L. Clarke; M. Clemencic; H. V. Cliff; J. Closier; P. Alvarez Cartelle; V. Coco; J. Cogan; E. Cogneras; P. Collins; A....
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An analysis of B0->D K*0 decays is presented, where D represents an admixture of D0 and D0b mesons reconstructed in four separate final states: K-pi+, pi-K+, K+K- and pi+pi-. The data sample corresponds to 3.0fb-1 of proton-proton collision, collected by the LHCb experiment. Measurements of several observables are performed, including CP asymmetries. The most precise determination is presented of rB(DK*0), the magnitude of the ratio of the amplitudes of the decay B0->D K+ pi- with a...
Topic: High Energy Physics - Experiment
Source: http://arxiv.org/abs/1407.8136
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48
Oct 9, 2014
10/14
by
Lahat, Adi; Neuman, Sandra; Eliakim, Rami; Ben-Horin, Shomron
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eye 48
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This article is from Clinical and Experimental Gastroenterology , volume 7 . Abstract Background: Chronic inflammatory bowel disease (IBD) causes significant distress for patients and their families. Data assessing the need of these patients for support and sharing with their partners are scarce. The aim of this study was to assess patients’ views regarding sharing of information with their partners. Methods: Ambulatory IBD patients treated at the Chaim Sheba Medical Center between January...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4122224
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117
Oct 9, 2014
10/14
by
Lindenblatt, Nicole; El-Rabadi, Karem; Helbich, Thomas H; Czembirek, Heinrich; Deutinger, Maria; Benditte-Klepetko, Heike
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eye 117
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This article is from International Journal of Women's Health , volume 6 . Abstract Background: Silicone gel breast implants may silently rupture without detection. This has been the main reason for magnetic resonance imaging (MRI) of the augmented or reconstructed breast. The aim of the present study was to investigate the accuracy of MRI for implant rupture. Methods: Fifty consecutive patients with 85 silicone gel implants were included in the study. The mean age of the patients was 51 (range...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4124066
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51
Oct 6, 2014
10/14
by
Lozano, Reymundo; Hagerman, Randi J; Duyzend, Michael; Budimirovic, Dejan B; Eichler, Evan E; Tassone, Flora
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eye 51
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This article is from Journal of Neurodevelopmental Disorders , volume 6 . Abstract Background: The FMR1 premutation is defined as having 55 to 200 CGG repeats in the 5′ untranslated region of the fragile X mental retardation 1 gene (FMR1). The clinical involvement has been well characterized for fragile X-associated tremor/ataxia syndrome (FXTAS) and fragile X-associated primary ovarian insufficiency (FXPOI). The behavior/psychiatric and other neurological manifestations remain to be...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4147387
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9.0
Jun 30, 2018
06/18
by
M. Guedel; R. Dvorak; N. Erkaev; J. Kasting; M. Khodachenko; H. Lammer; E. Pilat-Lohinger; H. Rauer; I. Ribas; B. E. Wood
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eye 9
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With the discovery of hundreds of exoplanets and a potentially huge number of Earth-like planets waiting to be discovered, the conditions for their habitability have become a focal point in exoplanetary research. The classical picture of habitable zones primarily relies on the stellar flux allowing liquid water to exist on the surface of an Earth-like planet with a suitable atmosphere. However, numerous further stellar and planetary properties constrain habitability. Apart from...
Topics: Earth and Planetary Astrophysics, Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.8174
