6
6.0
Jun 30, 2018
06/18
by
A. L. Saraiva; A. Baena; M. J. Calderón; Belita Koiller
texts
eye 6
favorite 0
comment 0
We provide here a roadmap for modeling silicon nano-devices with one or two group V donors (D). We discuss systems containing one or two electrons, that is, D^0, D^-, D_2^+ and D_2^0 centers. The impact of different levels of approximation is discussed. The most accurate instances -- for which we provide quantitative results -- are within multivalley effective mass including the central cell correction and a configuration interaction account of the electron-electron correlations. We also derive...
Topics: Mesoscale and Nanoscale Physics, Condensed Matter
Source: http://arxiv.org/abs/1407.8224
7
7.0
Jun 30, 2018
06/18
by
A. Mohammadi; E. R. Bezerra de Mello; A. A. Saharian
texts
eye 7
favorite 0
comment 0
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
50
50
Jun 30, 2018
06/18
by
A. O. Smirnov; E. G. Semenova; V. Zinger; N. Zinger
texts
eye 50
favorite 0
comment 0
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
5
5.0
Jun 30, 2018
06/18
by
A. Skopal; H. Drechsel; T. N. Tarasova; T. Kato; M. Fujii; F. Teyssier; O. Garde; J. Guarro; J. Edlin; C. Buil; D. Antao; J. N. Terry; T. Lemoult; S. Charbonnel; T. Bohlsen; A. Favaro; K. Graham
texts
eye 5
favorite 0
comment 0
We determine the temporal evolution of the luminosity L(WD), radius R(WD) and effective temperature Teff of the white dwarf (WD) pseudophotosphere of V339 Del from its discovery to around day 40. Another main objective was studying the ionization structure of the ejecta. These aims were achieved by modelling the optical/near-IR spectral energy distribution (SED) using low-resolution spectroscopy (3500 - 9200 A), UBVRcIc and JHKLM photometry. During the fireball stage (Aug. 14.8 - 19.9, 2013),...
Topics: Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.8212
5
5.0
Jun 30, 2018
06/18
by
A. Zazunov; A. Brunetti; A. Levy Yeyati; R. Egger
texts
eye 5
favorite 0
comment 0
We present a comprehensive theoretical framework for the Andreev bound state population dynamics in superconducting weak links. Contrary to previous works, our approach takes into account the generated nonequilibrium distribution of the continuum quasiparticle states in a self-consistent way. As application of our theory, we show that the coupling of the superconducting contact to environmental phase fluctuations induces a charge imbalance of the continuum quasiparticle population. This...
Topics: Superconductivity, Mesoscale and Nanoscale Physics, Condensed Matter
Source: http://arxiv.org/abs/1407.7991
66
66
Jun 30, 2018
06/18
by
A. de Paz; B. Naylor; J. Huckans A. Carrance; O. Gorceix; E. Marechal; P. Pedri; B. Laburthe-Tolra; L. Vernac
texts
eye 66
favorite 0
comment 0
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
66
66
Oct 4, 2014
10/14
by
AFONSO, JULIETA; LONGATTO-FILHO, ADHEMAR; DA SILVA, VITOR MOREIRA; AMARO, TERESINA; SANTOS, LUCIO L.
texts
eye 66
favorite 0
comment 0
This article is from Oncology Letters , volume 8 . Abstract Urothelial bladder carcinoma (UBC) is heterogeneous in its pathology and clinical behaviour. Evaluation of prognostic and predictive biomarkers is necessary, in order to produce personalised treatment options. The present study used immunohistochemistry to evaluate UBC sections containing tumour and non-tumour areas from 76 patients, for the detection of p-mTOR, CD31 and D2-40 (blood and lymphatic vessels identification, respectively)....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4156165
4
4.0
Jun 30, 2018
06/18
by
ATLAS Collaboration
texts
eye 4
favorite 0
comment 0
This letter presents a search for new resonances decaying to final states with a vector boson produced in association with a high transverse momentum photon, $V\gamma$, with $V= W(\rightarrow \ell \nu)$ or $Z(\rightarrow \ell^{+} \ell^{-})$, where $\ell = e$ or $\mu$. The measurements use 20.3 fb$^{-1}$ of proton-proton collision data at a center-of-mass energy of $\sqrt{s}=8$ TeV recorded with the ATLAS detector. No deviations from the Standard Model expectations are found, and production...
Topic: High Energy Physics - Experiment
Source: http://arxiv.org/abs/1407.8150
66
66
Oct 12, 2014
10/14
by
Aahlin, Eirik K; von Meyenfeldt, Maarten; Dejong, Cornelius HC; Ljungqvist, Olle; Fearon, Kenneth C; Lobo, Dileep N; Demartines, Nicolas; Revhaug, Arthur; Wigmore, Stephen J; Lassen, Kristoffer
texts
eye 66
favorite 0
comment 0
This article is from Perioperative Medicine , volume 3 . Abstract Background: The aim of this study was to survey the relative importance of postoperative recovery targets and perioperative care items, as perceived by a large group of international dedicated professionals. Methods: A questionnaire with eight postoperative recovery targets and 13 perioperative care items was mailed to participants of the first international Enhanced Recovery After Surgery (ERAS) congress and to authors of papers...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4118075
65
65
Oct 11, 2014
10/14
by
Abbott, Danielle S.; Chin-Smith, Evonne C.; Seed, Paul T.; Chandiramani, Manju; Shennan, Andrew H.; Tribe, Rachel M.
texts
eye 65
favorite 0
comment 0
This article is from PLoS ONE , volume 9 . Abstract Early spontaneous preterm birth is associated with inflammation/infection and shortening of the cervix. We hypothesised that cervico-vaginal production of trappin2/elafin (peptidase inhibitor 3) and cathelicidin antimicrobial peptide (cathelicidin), key components of the innate immune system, are altered in women who have a spontaneous preterm birth. The aim was to determine the relationship between cervico-vaginal fluid (CVF) trappin2/elafin...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116119
56
56
Oct 10, 2014
10/14
by
Abdennebi, Benaissa; Guenane, Lakhdar
texts
eye 56
favorite 0
comment 0
This article is from Surgical Neurology International , volume 5 . Abstract Background:: The aim of our study was to describe the retrogasserian balloon compression (RGBC) procedure with some personal tricks and to assess the long-term results. Methods:: Between 1985 and 2012, 901 patients, suffering from refractory trigeminal neuralgia (TN), underwent RGBC procedure in our department. Concerning the surgical technique, the introducer was in close contact with the posterior extremity of the...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4123256
52
52
Oct 8, 2014
10/14
by
Adeyemi, David O; Ukwenya, Victor O; Obuotor, Efere M; Adewole, Stephen O
texts
eye 52
favorite 0
comment 0
This article is from BMC Complementary and Alternative Medicine , volume 14 . Abstract Background: Flavonoid-rich aqueous fraction of methanolic extract of Hibiscus sabdariffa calyx was evaluated for its anti-hepatotoxic activities in streptozotocin-induced diabetic Wistar rats. Methods: Diabetes Mellitus was induced in Wistar rats by a single i.p injection of 80 mg/kg b.w. streptozotocin (STZ) dissolved in 0.1 M citrate buffer (pH 6.3). Results: The ameliorative effects of the extract on...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131030
7
7.0
Jun 30, 2018
06/18
by
Adriana Gonzalez; Laurent Jacques
texts
eye 7
favorite 0
comment 0
The 2-D phase unwrapping problem aims at retrieving a "phase" image from its modulo $2\pi$ observations. Many applications, such as interferometry or synthetic aperture radar imaging, are concerned by this problem since they proceed by recording complex or modulated data from which a "wrapped" phase is extracted. Although 1-D phase unwrapping is trivial, a challenge remains in higher dimensions to overcome two common problems: noise and discontinuities in the true phase...
Topics: Mathematics, Optimization and Control
Source: http://arxiv.org/abs/1407.8040
60
60
Oct 8, 2014
10/14
by
Ahmed, Abuzaid; Harsha, Tella Sri; Hamza, Tantoush; Allen, Ameri; Mohamed, Elkhashab
texts
eye 60
favorite 0
comment 0
This article is from Journal of Medical Case Reports , volume 8 . Abstract Introduction: Pericardial effusion and cardiac tamponade can develop in patients with virtually any condition that affects the pericardium. A high index of suspicion with proper diagnostic scheme can lessen the concomitant morbidity and mortality. Although cardiac tamponade mimics many medical conditions, internists and primary care physicians should be aware of the physiological and clinical aspects of the disease...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4132358
66
66
Oct 7, 2014
10/14
by
Ahmed, Ashik; Al-Amin, Rasheduzzaman; Amin, Ruhul
texts
eye 66
favorite 0
comment 0
This article is from SpringerPlus , volume 3 . Abstract This paper proposes designing of Static Synchronous Series Compensator (SSSC) based damping controller to enhance the stability of a Single Machine Infinite Bus (SMIB) system by means of Invasive Weed Optimization (IWO) technique. Conventional PI controller is used as the SSSC damping controller which takes rotor speed deviation as the input. The damping controller parameters are tuned based on time integral of absolute error based cost...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4137048
65
65
Oct 9, 2014
10/14
by
Ahn, Jem Ma; Paik, Yong-Han; Kim, So Hyun; Lee, Jun Hee; Cho, Ju Yeon; Sohn, Won; Gwak, Geum-Youn; Choi, Moon Seok; Lee, Joon Hyeok; Koh, Kwang Cheol; Paik, Seung Woon; Yoo, Byung Chul
texts
eye 65
favorite 0
comment 0
This article is from Journal of Korean Medical Science , volume 29 . Abstract High prevalence of diabetes mellitus in patients with liver cirrhosis has been reported in many studies. The aim of our study was to evaluate the relationship of hepatic fibrosis and steatosis assessed by transient elastography with diabetes in patients with chronic liver disease. The study population consisted of 979 chronic liver disease patients. Liver fibrosis and steatosis were assessed by liver stiffness...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129204
91
91
Oct 8, 2014
10/14
by
Ahrens, Merle-Marie; Awwad Shiekh Hasan, Bashar; Giordano, Bruno L.; Belin, Pascal
texts
eye 91
favorite 1
comment 0
This article is from Frontiers in Neuroscience , volume 8 . Abstract There is not only evidence for behavioral differences in voice perception between female and male listeners, but also recent suggestions for differences in neural correlates between genders. The fMRI functional voice localizer (comprising a univariate analysis contrasting stimulation with vocal vs. non-vocal sounds) is known to give robust estimates of the temporal voice areas (TVAs). However, there is growing interest in...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115625
7
7.0
Jun 30, 2018
06/18
by
Aitor Lewkowycz; Eric Perlmutter
texts
eye 7
favorite 0
comment 0
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
4
4.0
Jun 30, 2018
06/18
by
Akitoshi Kawamura; Yusuke Kobayashi
texts
eye 4
favorite 0
comment 0
Suppose we want to patrol a fence (line segment) using k mobile agents with given speeds v_1, ..., v_k so that every point on the fence is visited by an agent at least once in every unit time period. Czyzowicz et al. conjectured that the maximum length of the fence that can be patrolled is (v_1 + ... + v_k)/2, which is achieved by the simple strategy where each agent i moves back and forth in a segment of length v_i/2. We disprove this conjecture by a counterexample involving k = 6 agents. We...
Topics: Multiagent Systems, Computing Research Repository, Computational Geometry, Robotics
Source: http://arxiv.org/abs/1407.8194
118
118
Oct 7, 2014
10/14
by
Akizuki, Kazunori; Yazaki, Syouichirou; Echizenya, Yuki; Ohashi, Yukari
texts
eye 118
favorite 0
comment 0
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
52
52
Oct 8, 2014
10/14
by
Akoachere, Jane-Francis Tatah Kihla; Mbuntcha, Christelle Kwedjeu Pulcherie
texts
eye 52
favorite 0
comment 0
This article is from BMC Infectious Diseases , volume 14 . Abstract Background: Cholera has been endemic in Douala since 1971. Most outbreaks start from Bepanda, an overcrowded neighbourhood with poor hygiene and sanitary conditions. We investigated water sources in Bepanda as reservoirs of Vibrio cholerae, the causative agent of cholera, determined its antibiotic susceptibility and some physico-chemical characteristics that could maintain the endemicity of this organism in Bepanda. Methods:...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131033
5
5.0
Jun 30, 2018
06/18
by
Alejandro Cabo-Bizet; V. I. Giraldo-Rivera
texts
eye 5
favorite 0
comment 0
In this note we address some issues of recent interest, related to the asymptotic symmetry algebra of higher spin black holes in $sl(3,\mathbb{R})\times sl(3,\mathbb{R})$ Chern Simons (CS) formulation. We compute the fixed time Dirac bracket algebra that acts on two different phase spaces. Both of these spaces contain black holes as zero modes. The result for one of these phase spaces is explicitly shown to be isomorphic to $W^{(2)}_3\times W^{(2)}_3$ in first order perturbations.
Topic: High Energy Physics - Theory
Source: http://arxiv.org/abs/1407.8241
5
5.0
Jun 30, 2018
06/18
by
Alejandro Edera; Yanela Strappa; Facundo Bromberg
texts
eye 5
favorite 0
comment 0
Markov networks are models for compactly representing complex probability distributions. They are composed by a structure and a set of numerical weights. The structure qualitatively describes independences in the distribution, which can be exploited to factorize the distribution into a set of compact functions. A key application for learning structures from data is to automatically discover knowledge. In practice, structure learning algorithms focused on "knowledge discovery" present...
Topics: Computing Research Repository, Data Structures and Algorithms, Learning
Source: http://arxiv.org/abs/1407.8088
5
5.0
Jun 30, 2018
06/18
by
Alexandru Dimca; Stefan Papadima; Alexandru Suciu
texts
eye 5
favorite 0
comment 0
We relate the geometry of the resonance varieties associated to a commutative differential graded algebra model of a space to the finiteness properties of the completions of its Alexander-type invariants. We also describe in simple algebraic terms the non-translated components of the degree-one characteristic varieties for a class of non-proper complex manifolds.
Topics: Mathematics, Algebraic Topology, Algebraic Geometry
Source: http://arxiv.org/abs/1407.8027
70
70
Oct 8, 2014
10/14
by
Alonso-Moran, Edurne; Satylganova, Altynai; Orueta, Juan F; Nuno-Solinis, Roberto
texts
eye 70
favorite 0
comment 0
This article is from BMC Public Health , volume 14 . Abstract Background: The aim of the study was to estimate the prevalence of depression in the population diagnosed with diabetes type 2 and to test the hypothesis that the presence of depression in such cases was associated with a) worse glycaemic control, and b) higher healthcare costs. Methods: We conducted a cross-sectional analysis, from 1st September 2010 to 31st August 2011, among patients with type 2 diabetes aged 35 years and over in...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129099
91
91
Oct 8, 2014
10/14
by
Altermann, Eric
texts
eye 91
favorite 0
comment 0
This article is from Frontiers in Microbiology , volume 5 . Abstract None
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115626
16
16
Oct 5, 2014
10/14
by
Alurkar, Anand; Karanam, Lakshmi Sudha Prasanna; Oak, Sagar; Nayak, Suresh
texts
eye 16
favorite 0
comment 0
This article is from Surgical Neurology International , volume 5 . Abstract Background:: A2 aneurysms are rare with a reported incidence of
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4138823
79
79
Oct 8, 2014
10/14
by
Alzamil, Hana A.; Pawade, Joya; Fortier, Michel A.; Bernal, A. Lopez
texts
eye 79
favorite 0
comment 0
This article is from Frontiers in Physiology , volume 5 . Abstract Background: Human labor is a complex series of cellular and molecular events that occur at the materno-fetal and uterine levels. Many hypotheses have been proposed for the initiation of human labor, one hypothesis suggests that maturation of the fetus releases a signal in the amniotic fluid that will be transmitted to myometrium via the fetal membranes and initiate uterine contractions. There is strong evidence that...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115629
3
3.0
Jun 30, 2018
06/18
by
Amadeo Jimenez-Alba; Karl Landsteiner; Luis Melgar
texts
eye 3
favorite 0
comment 0
We study the magneto response with non-conserved currents in Holography. Non-conserved currents are dual to massive vector fields in AdS. We introduce the mass in a gauge invariant way via the St\"uckelberg mechanism. In particular we find generalizations of the Chiral Magnetic Effect, the Chiral Separation Effect and the Chiral Magnetic Wave. Since the associated charge is not conserved we need to source it explicitly by a coupling, the generalization of the chemical potential. In this...
Topics: High Energy Physics - Theory, High Energy Physics - Phenomenology, Strongly Correlated Electrons,...
Source: http://arxiv.org/abs/1407.8162
4
4.0
Jun 30, 2018
06/18
by
Andreas Buhr; Christian Engwer; Mario Ohlberger; Stephan Rave
texts
eye 4
favorite 0
comment 0
The Reduced Basis (RB) method is a well established method for the model order reduction of problems formulated as parametrized partial differential equations. One crucial requirement for the application of RB schemes is the availability of an a posteriori error estimator to reliably estimate the error introduced by the reduction process. However, straightforward implementations of standard residual based estimators show poor numerical stability, rendering them unusable if high accuracy is...
Topics: Mathematics, Numerical Analysis
Source: http://arxiv.org/abs/1407.8005
4
4.0
Jun 30, 2018
06/18
by
Andrew Duncan; Shuohao Liao; Tomas Vejchodsky; Radek Erban; Ramon Grima
texts
eye 4
favorite 0
comment 0
The noisy dynamics of chemical systems is commonly studied using either the chemical master equation (CME) or the chemical Fokker-Planck equation (CFPE). The latter is a continuum approximation of the discrete CME approach. We here show that the CFPE may fail to capture the CME's prediction of noise-induced multistability. In particular we find a simple chemical system for which the CME's marginal probability distribution changes from unimodal to multimodal as the system-size decreases below a...
Topics: Quantitative Methods, Quantitative Biology, Subcellular Processes
Source: http://arxiv.org/abs/1407.8256
4
4.0
Jun 30, 2018
06/18
by
Anna M. Barry; F. Hajir; P. G. Kevrekidis
texts
eye 4
favorite 0
comment 0
In this work, we construct suitable generating functions for vortices of alternating signs in the realm of Bose-Einstein condensates. In addition to the vortex-vortex interaction included in earlier fluid dynamics constructions of such functions, the vortices here precess around the center of the trap. This results in the generating functions of the vortices of positive charge and of negative charge satisfying a modified, so-called, Tkachenko differential equation. From that equation, we...
Topics: Nonlinear Sciences, Quantum Gases, Mathematics, Pattern Formation and Solitons, Mathematical...
Source: http://arxiv.org/abs/1407.7965
5
5.0
Jun 30, 2018
06/18
by
Anthony R. Pullen; Andrew J. Benson; Leonidas A. Moustakas
texts
eye 5
favorite 0
comment 0
We describe the methodology to include nonlinear evolution, including tidal effects, in the computation of subhalo distribution properties in both cold (CDM) and warm (WDM) dark matter universes. Using semi-analytic modeling, we include effects from dynamical friction, tidal stripping, and tidal heating, allowing us to dynamically evolve the subhalo distribution. We calibrate our nonlinear evolution scheme to the CDM subhalo mass function in the Aquarius N-body simulation, producing a subhalo...
Topics: Astrophysics, Cosmology and Nongalactic Astrophysics
Source: http://arxiv.org/abs/1407.8189
5
5.0
Jun 30, 2018
06/18
by
Ashkan Balouchi; Kurt Jacobs
texts
eye 5
favorite 0
comment 0
Feedback control of quantum systems via continuous measurement involves complex nonlinear dynamics. Except in very special cases, even for a single qubit optimal feedback protocols are unknown. Not even do intuitive candidates exist for choosing the measurement basis, which is the primary non-trivial ingredient in the feedback control of a qubit. Here we present a series of arguments that suggest a particular form for the optimal protocol for a broad class of noise sources in the regime of good...
Topic: Quantum Physics
Source: http://arxiv.org/abs/1407.8172
77
77
Oct 9, 2014
10/14
by
Aslan, Zaki Antonio Taissoun; Granados-Garcia, Martin; Luna-Ortiz, Kuauhyama; Guerrero-Huerta, Francisco Javier; Gomez-Pedraza, Antonio; Namendys-Silva, Silvio A; Meneses-Garcia, Abelardo; Ordonez-Mosquera, Juliana Maria
texts
eye 77
favorite 0
comment 0
This article is from ecancermedicalscience , volume 8 . Abstract Background: Anaplastic thyroid cancer is a rare and lethal disease. It accounts for 1–2% of thyroid malignancies, but specific mortality is higher than 90%. It is an aggressive locoregional disease with a high metastatic capacity. There is no agreement with regards to the best treatment. We analysed the results of treatment in a mestizo population treated in the National Cancer Institute (Mexico). Methods: We reviewed 1,581...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4118732
4
4.0
Jun 30, 2018
06/18
by
Assaf Ben-Yishai; Ofer Shayevitz
texts
eye 4
favorite 0
comment 0
Consider a pair of terminals connected by two independent additive white Gaussian noise channels, and limited by individual power constraints. The first terminal would like to reliably send information to the second terminal, within a given error probability. We construct an explicit interactive scheme consisting of only (non-linear) scalar operations, by endowing the Schalkwijk-Kailath noiseless feedback scheme with modulo arithmetic. Our scheme achieves a communication rate close to the...
Topics: Mathematics, Computing Research Repository, Information Theory
Source: http://arxiv.org/abs/1407.8022
3
3.0
Jun 30, 2018
06/18
by
Avideh Sabeti; Mian Wei; Radu V. Craiu
texts
eye 3
favorite 0
comment 0
Conditional copulas are flexible statistical tools that couple joint conditional and marginal conditional distributions. In a linear regression setting with more than one covariate and two dependent outcomes, we propose the use of additive models for conditional bivariate copula models and discuss computation and model selection tools for performing Bayesian inference. The method is illustrated using simulations and a real example.
Topics: Statistics, Methodology
Source: http://arxiv.org/abs/1407.8119
6
6.0
Jun 30, 2018
06/18
by
Awais Khawar; Ahmed Abdelhadi; T. Charles Clancy
texts
eye 6
favorite 0
comment 0
Multiple-input multiple-output (MIMO) radar is a relatively new concept in the field of radar signal processing. Many novel MIMO radar waveforms have been developed by considering various performance metrics and constraints. In this paper, we show that finite alphabet constant-envelope (FACE) quadrature-pulse shift keying (QPSK) waveforms can be designed to realize a given covariance matrix by transforming a constrained nonlinear optimization problem into an unconstrained nonlinear optimization...
Topics: Networking and Internet Architecture, Mathematics, Computing Research Repository, Information Theory
Source: http://arxiv.org/abs/1407.8510
93
93
Oct 8, 2014
10/14
by
Azzopardi, George; Petkov, Nicolai
texts
eye 93
favorite 0
comment 0
This article is from Frontiers in Computational Neuroscience , volume 8 . Abstract The remarkable abilities of the primate visual system have inspired the construction of computational models of some visual neurons. We propose a trainable hierarchical object recognition model, which we call S-COSFIRE (S stands for Shape and COSFIRE stands for Combination Of Shifted FIlter REsponses) and use it to localize and recognize objects of interests embedded in complex scenes. It is inspired by the...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115269
3
3.0
Jun 30, 2018
06/18
by
B. Fuks; M. Klasen; D. R. Lamprea; M. Rothering
texts
eye 3
favorite 0
comment 0
The search for electroweak superpartners has recently moved to the centre of interest at the LHC. We provide the currently most precise theoretical predictions for these particles, use them to assess the precision of parton shower simulations, and reanalyse public experimental results assuming more general decompositions of gauginos and sleptons.
Topic: High Energy Physics - Phenomenology
Source: http://arxiv.org/abs/1407.7963
3
3.0
Jun 30, 2018
06/18
by
B. Z. Kopeliovich; I. K. Potashnikova; Ivan Schmidt; M. Siddikov
texts
eye 3
favorite 0
comment 0
A charmonium produced in heavy ion collisions at RHIC and LHC propagates through a dense co-moving matter with a rather high relative momentum, =4-10GeV^2. In spite of Debye screening of the binding potential, the charmonium survives with a substantial probability, even if the c-cbar potential is completely screened in the hot environment. In addition, the color-exchange interaction with the medium is another important source of charmonium suppression. Attenuation in a hot medium caused by both...
Topics: High Energy Physics - Phenomenology, Nuclear Theory
Source: http://arxiv.org/abs/1407.8080
51
51
Oct 4, 2014
10/14
by
Bae, Jong-Myon
texts
eye 51
favorite 0
comment 0
This article is from Epidemiology and Health , volume 36 . Abstract The gap between nationwide recommendations of cancer screening and the related evidences obtained from Korean adults should be filled. Estimation of the mean sojourn time (MST) in a specific cancer is important to determine the intervals of subsequent screening. This author arranged the methods for calculating MST into 5 categories based on the parameters used. Under the legal barrier for protection of individual privacy and...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4153009
57
57
Oct 8, 2014
10/14
by
Bala, Margarita; Ronchi, Cristina L; Pichl, Josef; Wild, Vanessa; Kircher, Stefan; Allolio, Bruno; Hahner, Stefanie
texts
eye 57
favorite 0
comment 0
This article is from BMC Endocrine Disorders , volume 14 . Abstract Background: Kaposi sarcoma (KS) is a malignant disease most commonly diagnosed in the setting of a human immunodeficiency virus (HIV) infection and in patients receiving immunosuppressive treatment. Pulmonary KS has never been reported in association with endogenous Cushing’s syndrome (CS). Case presentation: A 60-year-old woman presented with symptoms and signs of CS. Adrenal CS was confirmed by standard biochemical...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4128825
86
86
Oct 6, 2014
10/14
by
Barrios, Vivencio; Escobar, Carlos
texts
eye 86
favorite 0
comment 0
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
51
51
Oct 11, 2014
10/14
by
Bartels, Tim; Kim, Nora C.; Luth, Eric S.; Selkoe, Dennis J.
texts
eye 51
favorite 0
comment 0
This article is from PLoS ONE , volume 9 . Abstract A switch in the conformational properties of α-synuclein (αS) is hypothesized to be a key step in the pathogenic mechanism of Parkinson’s disease (PD). Whereas the beta-sheet-rich state of αS has long been associated with its pathological aggregation in PD, a partially alpha-helical state was found to be related to physiological lipid binding; this suggests a potential role of the alpha-helical state in controlling synaptic vesicle...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116227
85
85
Oct 8, 2014
10/14
by
Becker, C.; Wyss, P.; Eisenhauer, D.; Probst, J.; Preidel, V.; Hammerschmidt, M.; Burger, S.
texts
eye 85
favorite 0
comment 0
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
6
6.0
Jun 30, 2018
06/18
by
Benjamin Dodson; Andrew Lawrie
texts
eye 6
favorite 0
comment 0
In this paper we study the focusing cubic wave equation in 1+5 dimensions with radial initial data as well as the one-equivariant wave maps equation in 1+3 dimensions with the model target manifolds $\mathbb{S}^3$ and $\mathbb{H}^3$. In both cases the scaling for the equation leaves the $\dot{H}^{\frac{3}{2}} \times \dot{H}^{\frac{1}{2}}$-norm of the solution invariant, which means that the equation is super-critical with respect to the conserved energy. Here we prove a conditional scattering...
Topics: Mathematics, Analysis of PDEs, Mathematical Physics
Source: http://arxiv.org/abs/1407.8199
67
67
Oct 7, 2014
10/14
by
Berman, Robert F; Buijsen, Ronald AM; Usdin, Karen; Pintado, Elizabeth; Kooy, Frank; Pretto, Dalyir; Pessah, Isaac N; Nelson, David L; Zalewski, Zachary; Charlet-Bergeurand, Nicholas; Willemsen, Rob; Hukema, Renate K
texts
eye 67
favorite 0
comment 0
This article is from Journal of Neurodevelopmental Disorders , volume 6 . Abstract Carriers of the fragile X premutation (FPM) have CGG trinucleotide repeat expansions of between 55 and 200 in the 5′-UTR of FMR1, compared to a CGG repeat length of between 5 and 54 for the general population. Carriers were once thought to be without symptoms, but it is now recognized that they can develop a variety of early neurological symptoms as well as being at risk for developing the late onset...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4135345
72
72
Oct 11, 2014
10/14
by
Berumen, Michael L.; Braun, Camrin D.; Cochran, Jesse E. M.; Skomal, Gregory B.; Thorrold, Simon R.
texts
eye 72
favorite 0
comment 0
This article is from PLoS ONE , volume 9 . Abstract Conservation efforts aimed at the whale shark, Rhincodon typus, remain limited by a lack of basic information on most aspects of its ecology, including global population structure, population sizes and movement patterns. Here we report on the movements of 47 Red Sea whale sharks fitted with three types of satellite transmitting tags from 2009–2011. Most of these sharks were tagged at a single aggregation site near Al-Lith, on the central...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116204
7
7.0
Jun 30, 2018
06/18
by
Binbin Lin; Qingyang Li; Qian Sun; Ming-Jun Lai; Ian Davidson; Wei Fan; Jieping Ye
texts
eye 7
favorite 0
comment 0
\textit{Drosophila melanogaster} has been established as a model organism for investigating the fundamental principles of developmental gene interactions. The gene expression patterns of \textit{Drosophila melanogaster} can be documented as digital images, which are annotated with anatomical ontology terms to facilitate pattern discovery and comparison. The automated annotation of gene expression pattern images has received increasing attention due to the recent expansion of the image database....
Topics: Computing Research Repository, Computational Engineering, Finance, and Science, Learning
Source: http://arxiv.org/abs/1407.8147
