67
67
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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65
Oct 9, 2014
10/14
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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
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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
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79
Oct 8, 2014
10/14
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Alzamil, Hana A.; Pawade, Joya; Fortier, Michel A.; Bernal, A. Lopez
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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
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4.0
Jun 30, 2018
06/18
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Anna M. Barry; F. Hajir; P. G. Kevrekidis
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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
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93
Oct 8, 2014
10/14
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Azzopardi, George; Petkov, Nicolai
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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
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57
Oct 8, 2014
10/14
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Bala, Margarita; Ronchi, Cristina L; Pichl, Josef; Wild, Vanessa; Kircher, Stefan; Allolio, Bruno; Hahner, Stefanie
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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
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85
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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67
Oct 7, 2014
10/14
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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
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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
3
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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eye 3
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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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4.0
Jun 30, 2018
06/18
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Brynmor Haskell; Nils Andersson; Caroline D`Angelo; Nathalie Degenaar; Kostas Glampedakis; Wynn C. G. Ho; Paul D. Lasky; Andrew Melatos; Manuel Oppenoorth; Alessandro Patruno; Maxim Priymak
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Rapidly rotating neutron stars in Low Mass X-ray Binaries have been proposed as an interesting source of gravitational waves. In this chapter we present estimates of the gravitational wave emission for various scenarios, given the (electromagnetically) observed characteristics of these systems. First of all we focus on the r-mode instability and show that a 'minimal' neutron star model (which does not incorporate exotica in the core, dynamically important magnetic fields or superfluid degrees...
Topics: High Energy Astrophysical Phenomena, Astrophysics, Solar and Stellar Astrophysics, General...
Source: http://arxiv.org/abs/1407.8254
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49
Oct 7, 2014
10/14
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Carr, Sandra E; Celenza, Antonio; Puddey, Ian B; Lake, Fiona
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This article is from BMC Medical Education , volume 14 . Abstract Background: Little recent published evidence explores the relationship between academic performance in medical school and performance as a junior doctor. Although many forms of assessment are used to demonstrate a medical student’s knowledge or competence, these measures may not reliably predict performance in clinical practice following graduation. Methods: This descriptive cohort study explores the relationship between...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4132279
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73
Oct 8, 2014
10/14
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Castellazzi, Gloria; Palesi, Fulvia; Casali, Stefano; Vitali, Paolo; Sinforiani, Elena; Wheeler-Kingshott, Claudia A. M.; D'Angelo, Egidio
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This article is from Frontiers in Neuroscience , volume 8 . Abstract In resting state fMRI (rs-fMRI), only functional connectivity (FC) reductions in the default mode network (DMN) are normally reported as a biomarker for Alzheimer's disease (AD). In this investigation we have developed a comprehensive strategy to characterize the FC changes occurring in multiple networks and applied it in a pilot study of subjects with AD and Mild Cognitive Impairment (MCI), compared to healthy controls (HC)....
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115623
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4.0
Jun 30, 2018
06/18
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Charles K. Fisher; Pankaj Mehta
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eye 4
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Feature selection, identifying a subset of variables that are relevant for predicting a response, is an important and challenging component of many methods in statistics and machine learning. Feature selection is especially difficult and computationally intensive when the number of variables approaches or exceeds the number of samples, as is often the case for many genomic datasets. Here, we introduce a new approach -- the Bayesian Ising Approximation (BIA) -- to rapidly calculate posterior...
Topics: Quantitative Biology, Statistics, Quantitative Methods, Computing Research Repository, Machine...
Source: http://arxiv.org/abs/1407.8187
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69
Oct 8, 2014
10/14
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Chen, Augustine; Beetham, Henry; Black, Michael A; Priya, Rashmi; Telford, Bryony J; Guest, Joanne; Wiggins, George A R; Godwin, Tanis D; Yap, Alpha S; Guilford, Parry J
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This article is from BMC Cancer , volume 14 . Abstract Background: E-cadherin is an adherens junction protein that forms homophilic intercellular contacts in epithelial cells while also interacting with the intracellular cytoskeletal networks. It has roles including establishment and maintenance of cell polarity, differentiation, migration and signalling in cell proliferation pathways. Its downregulation is commonly observed in epithelial tumours and is a hallmark of the epithelial to...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4131020
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50
Oct 12, 2014
10/14
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Chen, Hongfei; Xia, Yun; Zhu, Binbin; Hu, Xiawei; Xu, Shihao; Chen, Limei; Papadimos, Thomas J; Wang, Wantie; Wang, Quanguang; Xu, Xuzhong
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This article is from BMC Anesthesiology , volume 14 . Abstract Background: The reversal efficacy of 2% lipid emulsion in cardiac asystole induced by different concentrations of bupivacaine is poorly defined and needs to be determined. Methods: Forty-two male Sprague–Dawley rats were randomly divided into seven groups: B40, B60, B80, B100, B120, B140 and B160, n = 6. The Langendorff isolated heart perfusion model was used, which consisted of a balanced perfusion with Krebs-Henseleit...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4118607
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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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eye 55
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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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55
Oct 9, 2014
10/14
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Choi, Kyung-Hyun; Park, Sang Min; Lee, Kiheon; Lee, Ju Hyun; Park, Joo-Sung
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eye 55
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This article is from Journal of Korean Medical Science , volume 29 . Abstract Influenza vaccination is important for cancer survivors, a population with impaired immunity. This study was designed to assess influenza vaccination patterns among Korean cancer survivors. In this cross-sectional analysis, data were obtained from standardized questionnaires from 943 cancer survivors and 41,233 non-cancer survivors who participated in the Fourth and Fifth Korea National Health and Nutrition...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129196
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5.0
Jun 30, 2018
06/18
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Christoph Baranec; Reed Riddle; Nicholas M. Law; A. N. Ramaprakash; Shriharsh Tendulkar; Kristina Hogstrom; Khanh Bui; Mahesh Burse; Pravin Chordia; Hillol Das; Richard Dekany; Shrinivas Kulkarni; Sujit Punnadi
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eye 5
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As new large-scale astronomical surveys greatly increase the number of objects targeted and discoveries made, the requirement for efficient follow-up observations is crucial. Adaptive optics imaging, which compensates for the image-blurring effects of Earth's turbulent atmosphere, is essential for these surveys, but the scarcity, complexity and high demand of current systems limits their availability for following up large numbers of targets. To address this need, we have engineered and...
Topics: Instrumentation and Methods for Astrophysics, Astrophysics
Source: http://arxiv.org/abs/1407.8179
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7.0
Jun 30, 2018
06/18
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Christopher B. Johnson; R. I. Hynes; T. Maccarone; C T. Britt; H. Davis; P. G. Jonker; M. A. P. Torres; D. Steeghs; S. Greiss; G. Nelemans
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We present the results of a spectroscopic and photometric analysis of HD314884, a slowly pulsating B star (SPB) in a binary system with detected soft X-ray emission. We spectrally classify the B star as a B5V-B6V star with T$_{eff}$ = 15,490 $\pm$ 310 K, log $g$ = 3.75 $\pm$ 0.25 dex, and a photometric period of P$_{0}$ = 0.889521(12) days. A spectroscopic period search reveals an orbital period for the system of P$_{orb}$ = 1.3654(11) days. The discrepancy in the two periods and the...
Topics: Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.7938
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5.0
Jun 30, 2018
06/18
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Coralie Neiner; Maryline Briquet; Stéphane Mathis; Pieter Degroote
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eye 5
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Asteroseismology and spectropolarimetry have allowed us to progress significantly in our understanding of the physics of hot stars over the last decade. It is now possible to combine these two techniques to learn even more information about hot stars and constrain their models. While only a few magnetic pulsating hot stars are known as of today and have been studied with both seismology and spectropolarimetry, new opportunities - in particular Kepler2 and BRITE - are emerging and will allow us...
Topics: Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.8087
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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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eye 4
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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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3.0
Jun 30, 2018
06/18
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David Sutter; Tobias Sutter; Peyman Mohajerin Esfahani; Renato Renner
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eye 3
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We propose an iterative method for approximating the capacity of classical-quantum channels with a discrete input alphabet and a finite dimensional output, possibly under additional constraints on the input distribution. Based on duality of convex programming, we derive explicit upper and lower bounds for the capacity. To provide an $\varepsilon$-close estimate to the capacity, the presented algorithm requires $O(\tfrac{(N \vee M) M^3 \log(N)^{1/2}}{\varepsilon})$, where $N$ denotes the input...
Topics: Quantum Physics, Mathematics, Computing Research Repository, Information Theory
Source: http://arxiv.org/abs/1407.8202
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53
Oct 7, 2014
10/14
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Dias, Fabiano Moura; Costa, Susana Ortiz; Pereira de Freitas, Jeter; Pinto, Adriana da Costa Rocha; Vigario, Patricia dos Santos; Mainenti, Miriam Raquel Meira
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This article is from Journal of Physical Therapy Science , volume 26 . Abstract [Purpose] A significant increase in the number of oldest old has occurred worldwide. The aim of this study was to characterize the functional capacity of the oldest old residents in a long-stay institution in Rio de Janeiro, Brazil. [Subjects and Methods] All participants were evaluated according to the following metrics: anthropometry, body composition (bioelectrical impedance), handgrip strength, balance (Berg...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4135206
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66
Oct 11, 2014
10/14
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Dijoux, Laury; Viard, Frederique; Payri, Claude
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This article is from PLoS ONE , volume 9 . Abstract In the past few decades, in the marine realm in particular, the use of molecular tools has led to the discovery of hidden taxonomic diversity, revealing complexes of sister species. A good example is the red algal genus Asparagopsis. The two species (A. armata and A. taxiformis) recognized in this genus have been introduced in many places around the world. Within the nominal species A. taxiformis, previous molecular analyses have uncovered...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116237
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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
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3.0
Jun 30, 2018
06/18
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Donatien Fotso-Chedom; Pablo R. Murcia; Chris D. Greenman
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eye 3
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RNA virus populations will undergo processes of mutation and selection resulting in a mixed population of viral particles. High throughput sequencing of a viral population subsequently contains a mixed signal of the underlying clones. We would like to identify the underlying evolutionary structures. We utilize two sources of information to attempt this; within segment linkage information, and mutation prevalence. We demonstrate that clone haplotypes, their prevalence, and maximum parsimony...
Topics: Populations and Evolution, Quantitative Biology
Source: http://arxiv.org/abs/1407.7997
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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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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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3.0
Jun 30, 2018
06/18
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Fabian Bärenbold; Benoît Crouzy; Paolo Perona
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eye 3
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Although riparian vegetation is present in or along many water courses of the world, its active role resulting from the interaction with flow and sediment processes has only recently become an active field of research. Especially, the role of vegetation in the process of river pattern formation has been explored and demonstrated mostly experimentally and numerically until now. In the present work, we shed light on this subject by performing a linear stability analysis on a simple model for...
Topics: Fluid Dynamics, Physics
Source: http://arxiv.org/abs/1407.7951
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5.0
Jun 30, 2018
06/18
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Fariba Karimi; Verónica C. Ramenzoni; Petter Holme
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Most research of online communication focuses on modes of communication that are either open (like forums, bulletin boards, Twitter, etc.) or direct (like e-mails). In this work, we study a dataset that has both types of communication channels. We relate our findings to theories of social organization and human dynamics. The data comprises 36,492 users of a movie discussion community. Our results show that there are differences in the way users communicate in the two channels that are reflected...
Topics: Physics, Computing Research Repository, Physics and Society, Social and Information Networks
Source: http://arxiv.org/abs/1407.8041
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90
Oct 11, 2014
10/14
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Favaro, Livio; Ozella, Laura; Pessani, Daniela
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This article is from PLoS ONE , volume 9 . Abstract The African Penguin (Spheniscus demersus) is a highly social and vocal seabird. However, currently available descriptions of the vocal repertoire of African Penguin are mostly limited to basic descriptions of calls. Here we provide, for the first time, a detailed description of the vocal behaviour of this species by collecting audio and video recordings from a large captive colony. We combine visual examinations of spectrograms with spectral...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116197
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109
Oct 10, 2014
10/14
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Fechter, Kenneth; Porollo, Aleksey
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This article is from BMC Medical Genomics , volume 7 . Abstract Background: Cytochrome P450 monooxygenases (CYPs) represent a large and diverse family of enzymes involved in various biological processes in humans. Individual genome sequencing has revealed multiple mutations in human CYPs, and many missense mutations have been associated with variety of diseases. Since 3D structures are not resolved for most human CYPs, there is a need for a reliable sequence-based prediction that discriminates...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4119178
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Oct 11, 2014
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Ferrero, Valentina Elisabetta Viviana; Pedotti, Mattia; Chiado, Alessandro; Simonelli, Luca; Calzolai, Luigi; Varani, Luca; Lettieri, Teresa
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This article is from PLoS ONE , volume 9 . Abstract In this manuscript, we modulate the binding properties of estrogen receptor protein by rationally modifying the amino acid composition of its ligand binding domain. By combining sequence alignment and structural analysis of known estrogen receptor-ligand complexes with computational analysis, we were able to predict estrogen receptor mutants with altered binding properties. These predictions were experimentally confirmed by producing single...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116177
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Oct 8, 2014
10/14
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Friedel, Miriam; van Eede, Matthijs C.; Pipitone, Jon; Chakravarty, M. Mallar; Lerch, Jason P.
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This article is from Frontiers in Neuroinformatics , volume 8 . Abstract Using neuroimaging technologies to elucidate the relationship between genotype and phenotype and brain and behavior will be a key contribution to biomedical research in the twenty-first century. Among the many methods for analyzing neuroimaging data, image registration deserves particular attention due to its wide range of applications. Finding strategies to register together many images and analyze the differences between...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4115634
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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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8.0
Jun 30, 2018
06/18
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Gabriel Calsamiglia; Paulo Sad
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eye 8
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We consider the problem of extending germs of plane holomorphic foliations to foliations of compact surfaces. We show that the germs that become regular after a single blow up and admit meromorphic first integrals can be extended, after local changes of coordinates, to foliations of compact surfaces. We also show that the simplest elements in this class can be defined by polynomial equations. On the other hand we prove that, in the absence of meromorphic first integrals there are uncountably...
Topics: Complex Variables, Mathematics, Dynamical Systems
Source: http://arxiv.org/abs/1407.8111
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Oct 10, 2014
10/14
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Garcia-Diaz, Lutgardo; de Agustin, Juan Carlos; Ontanilla, Antonio; Marenco, Maria Luisa; Pavon, Antonio; Losada, Antonio; Antinolo, Guillermo
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This article is from BMC Pregnancy and Childbirth , volume 14 . Abstract Background: Indications for the ex utero intrapartum therapy (EXIT) procedure have evolved and nowadays in addition to secure the airway, obtain vascular access, administer surfactant and other resuscitation medications, EXIT is used to resect cervical or thoracic masses, for extracorporeal membrane circulation (ECMO) cannulation, as well as to rescue maximum intra-thoracic space for ventilation of the remaining functional...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4124143
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Oct 11, 2014
10/14
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Gaviria-Agudelo, Claudia; Carter, Kristen; Tareen, Naureen; Pascual, Virginia; Copley, Lawson A.
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This article is from PLoS ONE , volume 9 . Abstract Children with acute hematogenous osteomyelitis (AHO) demonstrate a broad spectrum of clinical manifestations, ranging from mild to severe. Several advances have been achieved in the study of host immune response to acute invasive Staphylococcus aureus infections through gene expression analysis. However, previous research has neither attempted to evaluate the response of children with AHO specific to Methicillin-resistant Staphylococcus aureus...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116206
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5.0
Jun 30, 2018
06/18
by
H. Zhu; W. W. Tian; P. Zuo
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We study Gamma-ray supernova remnant W49B and its environment using recent radio and infrared data. {\it Spitzer} IRS low resolution data of W49B shows shocked excitation lines of H$_{2}$ (0,0) S(0)-S(7) from the SNR-molecular cloud interaction. The H$_2$ gas is composed of two components with temperature of $\sim$260 K and $\sim$1060 K respectively. Various spectral lines from atomic and ionic particles are detected towards W49B. We suggest the ionic phase has an electron density of $\sim$500...
Topics: High Energy Astrophysical Phenomena, Astrophysics, Solar and Stellar Astrophysics
Source: http://arxiv.org/abs/1407.8260
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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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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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60
Oct 9, 2014
10/14
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Haw, Randy Tatt Yhew; Tong, Chih Kong; Yew, Andrew; Lee, Han Chung; Phillips, James B; Vidyadaran, Sharmili
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This article is from Journal of Neuroinflammation , volume 11 . Abstract Background: We report a novel method of culturing microglia in three dimension (3D) using collagen as a substrate. By culturing microglia within a matrix, we aim to emulate the physical state of microglia embedded within parenchyma. Methods: BV2 microglia cell suspensions were prepared with type I collagen and cast into culture plates. To characterise the BV2 microglia cultured in 3D, the cultures were evaluated for their...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4128540
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68
Oct 11, 2014
10/14
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Hessamfar, Mojgan; Colin, Celine; Bruyand, Mathias; Decoin, Madeleine; Bonnet, Fabrice; Mercie, Patrick; Neau, Didier; Cazanave, Charles; Pellegrin, Jean-Luc; Dabis, Francois; Morlat, Philippe; Chene, Genevieve
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This article is from PLoS ONE , volume 9 . Abstract Objective: To describe trends and determinants of severe morbidity in HIV-infected women and men. Design: A French prospective cohort of HIV-infected patients of both sexes and all transmission categories. Methods: We used hospital admission data from January 2000 to December 2008. A severe morbid event (SME) was defined as a clinical event requiring hospitalization for ≥48 h, several events could be reported during hospitalization. Yearly...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4116171
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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
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7.0
Jun 30, 2018
06/18
by
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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70
Oct 6, 2014
10/14
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Kim, Namsuk; Acampora, Dario; Dingli, Florent; Loew, Damarys; Simeone, Antonio; Prochiantz, Alain; A. Di Nardo, Ariel
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This article is from F1000Research , volume 3 . Abstract Plasticity in the visual cerebral cortex is regulated by the internalization of Otx2 homeoprotein into parvalbumin neurons in cortical layers II/III and IV. However the Otx2 locus is not active in these neurons and the protein is imported from external sources, including the choroid plexus. Because Otx1 and Otx2 may have redundant functions, we wanted to verify if part of the staining in parvalbumin neurons corresponds to Otx1 transported...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4133762
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Oct 9, 2014
10/14
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Kim, Sung Mi; Park, Young Jin; Chung, Sung-Hoon; Choi, Yong-Sung; Kim, Chang Hoon; Bae, Chong-Woo
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This article is from Journal of Korean Medical Science , volume 29 . Abstract Pulmonary surfactant (PS) therapy was proven to be highly successful for the treatment of respiratory distress syndrome in premature infants. As a results, early prophylactic (EP) PS therapy has been introduced recently in Europe, the US and Korea. However, no multi-center study was compared EP and late selective (LS) PS therapies in Korea. We performed a retrospective multi-center study to compare the outcomes of EP...
Source: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4129206
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3.0
Jun 30, 2018
06/18
by
Kingman Cheung; Jae Sik Lee; Po-Yan Tseng
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eye 3
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During the 2014 Summer Conferences, both ATLAS and CMS Collaborations of the LHC experiments have demonstrated tremendous efforts in treatment of data and processing more data such that most data on signal strengths have improved; especially the diphoton and fermionic modes of both experiments. Here in this note we perform an update to our previous model-independent Higgs precision analysis -- Higgcision. We found the followings: (i) the uncertainties on most couplings shrink about 10--20%,...
Topics: High Energy Physics - Phenomenology, High Energy Physics - Experiment
Source: http://arxiv.org/abs/1407.8236
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5.0
Jun 30, 2018
06/18
by
Krzysztof Jachymski; Michał Krych; Paul S. Julienne; Zbigniew Idziaszek
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We consider a general problem of inelastic collision of particles interacting with power-law potentials. Using quantum defect theory we derive an analytical formula for the energy-dependent complex scattering length, valid for arbitrary collision energy, and use it to analyze the elastic and reactive collision rates. Our theory is applicable for both universal and non-universal collisions. The former corresponds to the unit reaction probability at short range, while in the latter case the...
Topics: Physics, Quantum Gases, Atomic Physics, Quantum Physics, Condensed Matter
Source: http://arxiv.org/abs/1407.8030
