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
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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
68
68
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
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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
7
7.0
Jun 30, 2018
06/18
by
Binbin Lin; Qingyang Li; Qian Sun; Ming-Jun Lai; Ian Davidson; Wei Fan; Jieping Ye
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eye 7
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\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
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6.0
Jun 30, 2018
06/18
by
Brian Swingle; John McGreevy
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eye 6
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We give a detailed physical argument for the area law for entanglement entropy in gapped phases of matter arising from local Hamiltonians. Our approach is based on renormalization group (RG) ideas and takes a resource oriented perspective. We report four main results. First, we argue for the "weak area law": any gapped phase with a unique ground state on every closed manifold obeys the area law. Second, we introduce an RG based classification scheme and give a detailed argument that...
Topics: Quantum Physics, High Energy Physics - Theory, Strongly Correlated Electrons, Condensed Matter
Source: http://arxiv.org/abs/1407.8203
4
4.0
Jun 30, 2018
06/18
by
Caihua Chen; Shiqian Ma; Junfeng Yang
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eye 4
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In this paper, we first propose a general inertial proximal point method for the mixed variational inequality (VI) problem. Based on our knowledge, without stronger assumptions, convergence rate result is not known in the literature for inertial type proximal point methods. Under certain conditions, we are able to establish the global convergence and a $o(1/k)$ convergence rate result (under certain measure) of the proposed general inertial proximal point method. We then show that the...
Topics: Mathematics, Optimization and Control
Source: http://arxiv.org/abs/1407.8238
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43
Oct 2, 2014
10/14
by
Caseley, Emily A.; Muench, Stephen P.; Roger, Sebastien; Mao, Hong-Ju; Baldwin, Stephen A.; Jiang, Lin-Hua
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This article is from International Journal of Molecular Sciences , volume 15 . Abstract P2X receptors are Ca2+-permeable cationic channels in the cell membranes, where they play an important role in mediating a diversity of physiological and pathophysiological functions of extracellular ATP. Mammalian cells express seven P2X receptor genes. Single nucleotide polymorphisms (SNPs) are widespread in the P2RX genes encoding the human P2X receptors, particularly the human P2X7 receptor. This article...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4159798
3
3.0
Jun 30, 2018
06/18
by
Chan-Kao Chang; Adam Waszczak; Hsing-Wen Lin; Wing-Huen Ip; Thomas. A. Prince; Shrinivas R. Kulkarni; Russ Laher; Jason Surace
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eye 3
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Asteroids of size larger than 150 m generally do not have rotation periods smaller than 2.2 hours. This spin cutoff is believed to be due to the gravitationally bound rubble-pile structures of the asteroids. Rotation with periods exceeding this critical value will cause asteroid breakup. Up until now, only one object, 2001 OE84, has been found to be an exception to this spin cutoff. We report the discovery of a new super-fast rotator, (335433) 2005 UW163, spinning with a period of 1.290 hours...
Topics: Earth and Planetary Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1407.8264
55
55
Oct 9, 2014
10/14
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Cho, Uiju; Oh, Woo Jin; Bae, Ja Seong; Lee, Sohee; Lee, Young Sub; Park, Gyeong Sin; Lee, Youn Soo; Jung, Chan Kwon
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This article is from Journal of Korean Medical Science , volume 29 . Abstract The most common BRAF mutation in thyroid cancer is c.1799T>A (p.Val600Glu), and other BRAF mutations are rarely reported. We investigated the clinicopathological features of thyroid cancer with rare BRAF mutations. A total of 2,763 patients with thyroid cancer underwent molecular testing by direct DNA sequencing for mutations in BRAF exon 15. Among them, 2,110 (76.4%) had BRAF mutations. The c.1799T>A mutation...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129195
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113
Oct 11, 2014
10/14
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Choi, Jaesung; Song, Nan; Han, Sohee; Chung, Seokang; Sung, Hyuna; Lee, Ji-young; Jung, Sunjae; Park, Sue K.; Yoo, Keun-Young; Han, Wonshik; Lee, Jong Won; Noh, Dong-Young; Kang, Daehee; Choi, Ji-Yeob
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This article is from PLoS ONE , volume 9 . Abstract We investigated the role of common genetic variation in immune-related genes on breast cancer disease-free survival (DFS) in Korean women. 107 breast cancer patients of the Seoul Breast Cancer Study (SEBCS) were selected for this study. A total of 2,432 tag single nucleotide polymorphisms (SNPs) in 283 immune-related genes were genotyped with the GoldenGate Oligonucleotide pool assay (OPA). A multivariate Cox-proportional hazard model and...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116221
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46
Oct 11, 2014
10/14
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Choi, KyungOh; Ghaddar, Bassel; Moya, Colby; Shi, Hai; Sridharan, Gautham V.; Lee, Kyongbum; Jayaraman, Arul
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This article is from PLoS ONE , volume 9 . Abstract Lipid accumulation in adipocytes reflects a balance between enzymatic pathways leading to the formation and breakdown of esterified lipids, primarily triglycerides. This balance is extremely important, as both high and low lipid levels in adipocytes can have deleterious consequences. The enzymes responsible for lipid synthesis and breakdown (lipogenesis and lipolysis, respectively) are regulated through the coordinated actions of several...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116336
3
3.0
Jun 30, 2018
06/18
by
Christopher Eltschka; Jens Siewert
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A striking result from nonrelativistic quantum mechanics is the monogamy of entanglement, which states that a particle can be maximally entangled only with one other party, not with several ones. While there is the exact quantitative relation for three qubits and also several inequalities describing monogamy properties it is not clear to what extent exact monogamy relations are a general feature of quantum mechanics. We prove that in all many-qubit systems there exist strict monogamy laws for...
Topic: Quantum Physics
Source: http://arxiv.org/abs/1407.8195
6
6.0
Jun 30, 2018
06/18
by
Christopher Perry; Rahul Jain; Jonathan Oppenheim
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Quantum resources can be more powerful than classical resources - a quantum computer can solve certain problems exponentially faster than a classical computer, and computing a function of two people's inputs can be done with exponentially less communication with quantum messages than with classical ones. Here we consider a task between two players, Alice and Bob where quantum resources are infinitely more powerful than classical ones. Alice is given a string of length n, and Bob's task is to...
Topic: Quantum Physics
Source: http://arxiv.org/abs/1407.8217
9
9.0
Jun 30, 2018
06/18
by
Cédric M. Campos; J. M. Sanz-Serna
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eye 9
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We study a method, Extra Chance Generalized Hybrid Monte Carlo, to avoid rejections in the Hybrid Monte Carlo method and related algorithms. In the spirit of delayed rejection, whenever a rejection would occur, extra work is done to find a fresh proposal that, hopefully, may be accepted. We present experiments that clearly indicate that the additional work per sample carried out in the extra chance approach clearly pays in terms of the quality of the samples generated.
Topics: Probability, Mathematics, Numerical Analysis
Source: http://arxiv.org/abs/1407.8107
3
3.0
Jun 30, 2018
06/18
by
Dan Crisan; Joaquin Miguez; Gonzalo Rios
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eye 3
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We investigate the use of possibly the simplest scheme for the parallelisation of the standard particle filter, that consists in splitting the computational budget into $M$ fully independent particle filters with $N$ particles each, and then obtaining the desired estimators by averaging over the $M$ independent outcomes of the filters. This approach minimises the parallelisation overhead yet displays highly desirable theoretical properties. Under very mild assumptions, we analyse the mean...
Topics: Computation, Statistics
Source: http://arxiv.org/abs/1407.8071
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61
Oct 11, 2014
10/14
by
Davis, Michael S.; Bonen, Arend; Snook, Laelie A.; Jain, Swati S.; Bartels, Kenneth; Geor, Raymond; Hueffer, Karsten
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This article is from PLoS ONE , volume 9 . Abstract Endurance exercise relies on transsarcolemmal flux of substrates in order to avoid depletion of intramuscular reserves. Previous studies of endurance trained sled dogs have shown a remarkable capacity of these dogs to adapt rapidly to endurance exercise by decreasing the utilization of intramuscular reserves. The current study tested the hypothesis that the dogs' glycogen-sparing phenotype is due to increased sarcolemmal transport of glucose...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116179
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153
Oct 8, 2014
10/14
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Dodev, Tihomir S.; Karagiannis, Panagiotis; Gilbert, Amy E.; Josephs, Debra H.; Bowen, Holly; James, Louisa K.; Bax, Heather J.; Beavil, Rebecca; Pang, Marie O.; Gould, Hannah J.; Karagiannis, Sophia N.; Beavil, Andrew J.
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This article is from Scientific Reports , volume 4 . Abstract Over the last four decades, molecular cloning has evolved tremendously. Efficient products allowing assembly of multiple DNA fragments have become available. However, cost-effective tools for engineering antibodies of different specificities, isotypes and species are still needed for many research and clinical applications in academia. Here, we report a method for one-step assembly of antibody heavy- and light-chain DNAs into a...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115235
4
4.0
Jun 30, 2018
06/18
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Donald Gavel; Renate Kupke; Daren Dillon; Andrew Norton; Chris Ratliff; Jerry Cabak; Andrew Phillips; Connie Rockosi; Rosalie McGurk; Srikar Srinath; Michael Peck; William Deich; Kyle Lanclos; John Gates; Michael Saylor; Jim Ward; Terry Pfister
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eye 4
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A new high-order adaptive optics system is now being commissioned at the Lick Observatory Shane 3-meter telescope in California. This system uses a high return efficiency sodium beacon and a combination of low and high-order deformable mirrors to achieve diffraction-limited imaging over a wide spectrum of infrared science wavelengths covering 0.8 to 2.2 microns. We present the design performance goals and the first on-sky test results. We discuss several innovations that make this system a...
Topics: Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1407.8207
5
5.0
Jun 30, 2018
06/18
by
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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eye 5
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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
5
5.0
Jun 30, 2018
06/18
by
Ezequiel E. Ferrero; Kirsten Martens; Jean-Louis Barrat
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eye 5
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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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54
Oct 10, 2014
10/14
by
Fitzcharles, Mary-Ann; Ste-Marie, Peter A; Clauw, Daniel J; Jamal, Shahin; Karsh, Jacob; LeClercq, Sharon; McDougall, Jason J; Shir, Yoram; Shojania, Kam; Walsh, Zach
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eye 54
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This article is from BMC Musculoskeletal Disorders , volume 15 . Abstract Background: Arthritis pain is reported as one of the most common reasons for persons using medical herbal cannabis in North America. “Severe arthritis” is the condition justifying legal use of cannabis in over half of all authorizations in Canada, where cannabis remains a controlled substance. As champions for the care of persons with arthritis, rheumatologists must be knowledgeable of treatment modalities both...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4121007
5
5.0
Jun 30, 2018
06/18
by
Franziska Jahnke; Jochen Koenigsmann
texts
eye 5
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Admitting a non-trivial $p$-henselian valuation is a weaker assumption on a field than admitting a non-trivial henselian valuation. Unlike henselianity, $p$-henselianity is an elementary property in the language of rings. We are interested in the question when a field admits a non-trivial 0-definable $p$-henselian valuation (in the language of rings). We give a classification of elementary classes of fields in which the canonical $p$-henselian valuation is uniformly 0-definable. We then apply...
Topics: Mathematics, Logic, Commutative Algebra
Source: http://arxiv.org/abs/1407.8156
5
5.0
Jun 30, 2018
06/18
by
G. Bruni; J. I. González-Serrano; M. Pedani; C. R. Benn; K. -H. Mack; J. Holt; F. M. Montenegro-Montes; F. Jiménez-Luján
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eye 5
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Broad absorption lines (BALs) are present in the spectra of ~20% of quasars (QSOs); this indicates fast outflows (up to 0.2c) that intercept the observer's line of sight. These QSOs can be distinguished again into radio-loud (RL) BAL QSOs and radio-quiet (RQ) BAL QSOs. The first are very rare, even four times less common than RQ BAL QSOs. The reason for this is still unclear and leaves open questions about the nature of the BAL-producing outflows and their connection with the radio jet. We...
Topics: Astrophysics of Galaxies, Astrophysics
Source: http://arxiv.org/abs/1407.7987
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59
Oct 8, 2014
10/14
by
Goto, Yumeno; Jono, Yasutomo; Hatanaka, Ryota; Nomura, Yoshifumi; Tani, Keisuke; Chujo, Yuta; Hiraoka, Koichi
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eye 59
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This article is from Frontiers in Human Neuroscience , volume 8 . Abstract We investigated differences in corticospinal and spinal control between discrete and rhythmic ankle movements. Motor evoked potentials (MEPs) in the tibialis anterior and soleus muscles and soleus H-reflex were elicited in the middle of the plantar flexion phase during discrete ankle movement or in the initial or later cycles of rhythmic ankle movement. The H-reflex was evoked at an intensity eliciting a small M-wave and...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115592
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71
Oct 7, 2014
10/14
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Hall, Deborah A; Birch, Rachael C; Anheim, Mathieu; J?nch, Aia E; Pintado, Elizabeth; O'Keefe, Joanne; Trollor, Julian N; Stebbins, Glenn T; Hagerman, Randi J; Fahn, Stanley; Berry-Kravis, Elizabeth; Leehey, Maureen A
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This article is from Journal of Neurodevelopmental Disorders , volume 6 . Abstract This paper summarizes key emerging issues in fragile X-associated tremor/ataxia syndrome (FXTAS) as presented at the First International Conference on the FMR1 Premutation: Basic Mechanisms & Clinical Involvement in 2013.
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4141265
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75
Oct 10, 2014
10/14
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Hanly, Narelle; Mireskandari, Shab; Juraskova, Ilona
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eye 75
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This article is from BMC Urology , volume 14 . Abstract Background: Despite the growing body of literature which highlights the potential for significant and enduring side-effects of prostate cancer treatment, there is limited research exploring the experience of living with the treatment-induced side-effects such as sexual dysfunction, and their repercussions for men and their partners. The aim of this qualitative study was to explore factors influencing psychosexual adjustment,...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4124511
3
3.0
Jun 30, 2018
06/18
by
Hari K. Kunduri; James Lucietti
texts
eye 3
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The domain of outer communication of five-dimensional asymptotically flat stationary spacetimes may possess non-trivial 2-cycles. We discuss how this may lead to a gross violation of black hole uniqueness, beyond the existence of black rings, even for solutions with two commuting rotational symmetries. We illustrate this with a simple example in minimal supergravity; a four parameter family of supersymmetric black hole solutions, with spherical horizon topology and a 2-cycle in the exterior. We...
Topics: High Energy Physics - Theory, General Relativity and Quantum Cosmology
Source: http://arxiv.org/abs/1407.8002
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7.0
Jun 30, 2018
06/18
by
Henryk Czyz; Johann H. Kuhn; Szymon Tracz
texts
eye 7
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New parametrisation for the electric and the magnetic form factors of proton and neutron are presented. The proton form factors describe well the recent measurements by BaBar collaboration and earlier ones of the ratio of the form factors in space-like region. The neutron form factors are consistent with earlier measurements of neutron pair production and ratio of the form factors in the space-like region. These form factors are implemented into the generator PHOKHARA, which simulates the...
Topic: High Energy Physics - Phenomenology
Source: http://arxiv.org/abs/1407.7995
5
5.0
Jun 30, 2018
06/18
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Hong-Viet V. Ngo; Jens Christian Claussen; Jan Born; Matthias Mölle
texts
eye 5
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Slow oscillations are electrical potential oscillations with a spectral peak frequency of $\sim$0.8 Hz, and hallmark the electroencephalogram during slow-wave sleep. Recent studies have indicated a causal contribution of slow oscillations to the consolidation of memories during slow-wave sleep, raising the question to what extent such oscillations can be induced by external stimulation. Here, we examined whether slow oscillations can be effectively induced by rhythmic acoustic stimulation....
Topics: Quantitative Biology, Neurons and Cognition
Source: http://arxiv.org/abs/1407.7999
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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
texts
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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
by
Hua Zhou; John Blangero; Thomas D. Dyer; Kei-hang K. Chan; Kenneth Lange; Eric M. Sobel
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eye 8
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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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5.0
Jun 30, 2018
06/18
by
Huy Nguyen; Hao Shi; Jie Xu; Shiwei Zhang
texts
eye 5
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We describe CPMC-Lab, a Matlab program for the constrained-path and phaseless auxiliary-field Monte Carlo methods. These methods have allowed applications ranging from the study of strongly correlated models, such as the Hubbard model, to ab initio calculations in molecules and solids. The present package implements the full ground-state constrained-path Monte Carlo (CPMC) method in Matlab with a graphical interface, using the Hubbard model as an example. The package can perform calculations in...
Topics: Strongly Correlated Electrons, Condensed Matter
Source: http://arxiv.org/abs/1407.7967
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51
Oct 9, 2014
10/14
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Hwang, Yong Il; Park, Yong Bum; Oh, Yeon Mok; Lee, Ji Hyun; Kim, Tae Hyung; Yoo, Kwang Ha; Yoon, Hyoung Kyu; Rhee, Chin Kook; Kim, Deog Kyeom; Shin, Kyeong Cheol; Lee, Sang Yeub; Jung, Ki-Suck
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This article is from Journal of Korean Medical Science , volume 29 . Abstract The purpose of this study was to compare the Korean COPD guideline to GOLD consensus report in terms of acute exacerbation. A total of 361 patients were enrolled in this study, and 16.9% of them experienced acute exacerbation during the follow-up. A total of 6.3% of patients in GOLD A, 9.5% in GOLD B, 7.7% in GOLD C and 17.0% of GOLD D experienced exacerbation during the first year of follow-up, respectively (P=0.09)....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129203
3
3.0
Jun 30, 2018
06/18
by
J. Farihi; M. C. Wyatt; J. S. Greaves; A. Bonsor; B. Sibthorpe; O. Panić
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eye 3
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ALMA Cycle 0 and Herschel PACS observations are reported for the prototype, nearest, and brightest example of a dusty and polluted white dwarf, G29-38. These long wavelength programs attempted to detect an outlying, parent population of bodies at 1-100 AU, from which originates the disrupted planetesimal debris that is observed within 0.01 AU and which exhibits L_IR/L = 0.039. No associated emission sources were detected in any of the data down to L_IR/L ~ 1e-4, generally ruling out cold dust...
Topics: Earth and Planetary Astrophysics, Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.7976
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6.0
Jun 30, 2018
06/18
by
J. H. Field
texts
eye 6
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Einstein's theoretical analysis of mass-energy equivalence, already, at the time, experimentally evident in radioactive decays, in two papers published in 1905, as well as Planck's introduction, in 1906, of the concepts of relativistic momentum, and, by invoking Hamilton's Principle, relativistic energy, are reviewed and discussed. Claims in the literature that Einstein's analysis was flawed, lacked generality, or was not rigorous, are rebutted.
Topics: Physics, History and Philosophy of Physics
Source: http://arxiv.org/abs/1407.8507
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5.0
Jun 30, 2018
06/18
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J. S. Sanders; A. C. Fabian; J. Hlavacek-Larrondo; H. R. Russell; G. B. Taylor; F. Hofmann; G. Tremblay; S. A. Walker
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We present Chandra X-ray Observatory observations of the core of the galaxy cluster PKS 0745-191. Its centre shows X-ray cavities caused by AGN feedback and cold fronts with an associated spiral structure. The cavity energetics imply they are powerful enough to compensate for cooling. Despite the evidence for AGN feedback, the Chandra and XMM-RGS X-ray spectra are consistent with a few hundred solar masses per year cooling out of the X-ray phase, sufficient to power the emission line nebula....
Topics: Astrophysics of Galaxies, Astrophysics, Cosmology and Nongalactic Astrophysics
Source: http://arxiv.org/abs/1407.8008
3
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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eye 3
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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
by
Jake P. Taylor-King; Emiel van Loon; Gabriel Rosser; S. Jon Chapman
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eye 4
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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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71
Oct 7, 2014
10/14
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Jang, Eun-Mi; Kim, Mi-Hyun; Yoo, Won-Gyu
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This article is from Journal of Physical Therapy Science , volume 26 . Abstract [Purpose] The purpose of this study was to compare the activation of the tibialis anterior (TA) and soleus (SOL) muscles during the sit-to-stand (STS) task with hip adduction and hip abduction in elderly females. [Subjects] We recruited 16 healthy elderly females with no pain in the knee joint and no other orthopedic problems of the lower limbs. [Methods] The activities of the dominant lower extremity muscles were...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4135194
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50
Oct 7, 2014
10/14
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Jang, Jun-Hyeok; Kim, Tae-Hoon; Oh, Jae-Seop
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This article is from Journal of Physical Therapy Science , volume 26 . Abstract [Purpose] This study examined changes in the onset of neck movement in young adults with and without mild neck pain (MNP) during visual display terminal (VDT) work. [Subjects] Ten control subjects and 10 subjects with MNP who were VDT workers were recruited. The upper (UC) and lower cervical (LC) spine angles in the sagittal plane were collected using an ultrasound-based motion analysis system during VDT work for...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4135190
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7.0
Jun 30, 2018
06/18
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Javad Noorbakhsh; David Schwab; Allyson Sgro; Thomas Gregor; Pankaj Mehta
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eye 7
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Unicellular organisms exhibit elaborate collective behaviors in response to environmental cues. These behaviors are controlled by complex biochemical networks within individual cells and coordinated through cell-to-cell communication. Describing these behaviors requires new mathematical models that can bridge scales -- from biochemical networks within individual cells to spatially structured cellular populations. Here, we present a family of multiscale models for the emergence of spiral waves...
Topics: Nonlinear Sciences, Quantitative Biology, Mathematics, Pattern Formation and Solitons, Cell...
Source: http://arxiv.org/abs/1407.8210
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4.0
Jun 30, 2018
06/18
by
Javier Llorente; Josu Cantero
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The dependence of jet shapes in $t\bar{t}$ events on the $b$-quark mass and the strong coupling is investigated. To this end, the Pythia Monte Carlo generator is used to produce samples of $t\bar{t}$ events in $pp$ collisions at $\sqrt{s} = 7 \ \mathrm{TeV}$, performing a scan over the values for the shower QCD scale $\Lambda_s$ and the $b$-quark mass $m_b$. The obtained jet shapes are compared with recently published data from the ATLAS collaboration. From fits to the light-jet data, the Monte...
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1407.8001
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8.0
Jun 30, 2018
06/18
by
Jennifer Hom
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Ozsvath-Stipsicz-Szabo recently defined a one-parameter family, upsilon of K at t, of concordance invariants associated to the knot Floer complex. We compare their invariant to the {-1, 0, 1}-valued concordance invariant epsilon, which is also associated to the knot Floer complex. In particular, we give an example of a knot K with upsilon uniformly equal to zero but epsilon non-zero.
Topics: Mathematics, Geometric Topology
Source: http://arxiv.org/abs/1407.8200
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4.0
Jun 30, 2018
06/18
by
Ji Oon Lee; Kevin Schnelli
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We consider $N\times N$ random matrices of the form $H = W + V$ where $W$ is a real symmetric Wigner matrix and $V$ a random or deterministic, real, diagonal matrix whose entries are independent of $W$. We assume subexponential decay for the matrix entries of $W$ and we choose $V$ so that the eigenvalues of $W$ and $V$ are typically of the same order. For a large class of diagonal matrices $V$ we show that the rescaled distribution of the extremal eigenvalues is given by the Tracy-Widom...
Topics: Probability, Mathematics
Source: http://arxiv.org/abs/1407.8015
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80
Oct 9, 2014
10/14
by
Ji, Nam-Ju; Hong, Yeon-Pyo; Stack, Steven John; Lee, Weon-Young
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This article is from Journal of Korean Medical Science , volume 29 . Abstract The aims of this study were to analyze annual trends of charcoal burning (CB) suicide, 2000 to 2011, and to examine the risk factors of CB suicide in Korea. Data on suicides (n=138,938) were obtained from the Statistics Korea. The proportion of CB suicides among all suicide deaths reported was 0.7% (84 cases) in 2007, and since 2008 it has rapidly increased to 7.9% (1,251 cases) in 2011. Of significant risk factors of...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129214
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76
Oct 7, 2014
10/14
by
Jiang, Ke; Li, Yingchun; Zhu, Qiumin; Xu, Jiansheng; Wang, Yupeng; Deng, Wuguo; Liu, Quentin; Zhang, Guirong; Meng, Songshu
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This article is from BMC Cancer , volume 14 . Abstract Background: Oncolytic viruses represent a promising therapy against cancers with acquired drug resistance. However, low efficacy limits its clinical application. The objective of this study is to investigate whether pharmacologically modulating autophagy could enhance oncolytic Newcastle disease virus (NDV) strain NDV/FMW virotherapy of drug-resistant lung cancer cells. Methods: The effect of NDV/FMW infection on autophagy machinery in A549...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4141091
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4.0
Jun 30, 2018
06/18
by
Jige Chen; Yi Gao; Chunlei Wang; Renliang Zhang; Hong Zhao; Haiping Fang
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Thermally driven nanotube nanomotors provide linear mass transportation controlled by a temperature gradient. However, the underlying mechanism is still unclear where the mass transportation velocity in experiment is much lower than that resulting from simulations. Considering that defects are common in fabricated nanotubes, we use molecular dynamics simulations to show that the mass transportation would be considerably impeded by the potential barriers or wells induced by the defects, which...
Topics: Mesoscale and Nanoscale Physics, Statistical Mechanics, Condensed Matter
Source: http://arxiv.org/abs/1407.8263
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3.0
Jun 30, 2018
06/18
by
Jing Tang; Shuo Cao; Yunan Gao; Yue Sun; Weidong Geng; David A. Williams; Kuijuan Jin; Xiulai Xu
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We report a photoluminescence (PL) spectroscopy study of charge state control in single self-assembled InAs/GaAs quantum dots by applying electric and/or magnetic fields at 4.2 K. Neutral and charged exciton complexes were observed under applied bias voltages from -0.5 V to 0.5 V by controlling the carrier tunneling. The highly negatively charged exciton emission becomes stronger with increasing pumping power, arising from the fact that electrons have a smaller effective mass than holes and are...
Topics: Mesoscale and Nanoscale Physics, Condensed Matter
Source: http://arxiv.org/abs/1407.7980
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3.0
Jun 30, 2018
06/18
by
Jing Zhang; Yu-xi Liu; Re-Bing Wu; Kurt Jacobs; Sahin Kaya Ozdemir; Lan Yang; Tzyh-Jong Tarn; Franco Nori
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Quantum input-output theory plays a very important role for analyzing the dynamics of quantum systems, especially large-scale quantum networks. As an extension of the input-output formalism of Gardiner and Collet, we develop a new approach based on the quantum version of the Volterra series which can be used to analyze nonlinear quantum input-output dynamics. By this approach, we can ignore the internal dynamics of the quantum input-output system and represent the system dynamics by a series of...
Topic: Quantum Physics
Source: http://arxiv.org/abs/1407.8108
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Jun 30, 2018
06/18
by
Jinn-Ouk Gong; Min-Seok Seo; Spyros Sypsas
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We study next-to-leading corrections to the effective action of the curvature perturbation obtained by integrating out the coupled heavy isocurvature perturbation. These corrections result from including higher order derivative operators, weighted by the mass scale of the heavy physics, in the effective theory expansion. We find that the correction terms are suppressed by the ratio of the Hubble parameter to the heavy mass scale. The corresponding corrections to the power spectrum of the...
Topics: High Energy Physics - Theory, High Energy Physics - Phenomenology, Astrophysics, General Relativity...
Source: http://arxiv.org/abs/1407.8268
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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
