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https://www.readbyqxmd.com/read/28078869/high-level-laser-therapy-for-the-treatment-of-lower-back-pain-clinical-efficacy-and-comparison-of-different-wavelengths
#1
A Notarnicola, G Maccagnano, S Tafuri, M F Gallone, L Moretti, B Moretti
High energy laser therapy (HELT) could be a new alternative treatment for lower back pain (LBP), which is a significant public health problem. Nevertheless, differences between the various light waves of HELT have not yet been fully researched. Sixty-six patients with lower back pain were treated using a high energy laser therapy. They were randomized into three different protocols which differed according to wave length (650 nm, 810 nm and TRIAX, which is simultaneous emission of 810 nm, 980 nm e 1064 nm)...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078847/real-time-shear-wave-elastrography-and-apri-index-for-evaluating-autoimmune-hepatitis-fibrosis
#2
L L Sun, G Dong, B Wang, Q Zheng, S Wang, R F Zhang
The objective of this study was to investigate the significance of real-time supersonic shear imaging (SSI) and serum biochemical index in evaluating the degree of autoimmune hepatitis fibrosis. Retrospective analysis was carried out to study 291 cases of patients with autoimmune hepatitis, and discuss the value of SSI application, APRI index and bilirubin on autoimmune hepatitis. The area under the receiver operating characteristic curve (AUROC) was taken for statistical analysis to determine its diagnostic accuracy...
October 2016: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28078229/commentary-to-low-energy-shock-wave-therapy-ameliorates-erectile-dysfunction-in-a-pelvic-neurovascular-injuries-rat-model-published-in-j-sex-med-2016-13-22-32-by-li-h-matheu-p-sun-f-et-al
#3
COMMENT
https://www.readbyqxmd.com/read/28070307/global-ecological-success-of-thalassoma-fishes-in-extreme-coral-reef-habitats
#4
Christopher J Fulton, Peter C Wainwright, Andrew S Hoey, David R Bellwood
Phenotypic adaptations can allow organisms to relax abiotic selection and facilitate their ecological success in challenging habitats, yet we have relatively little data for the prevalence of this phenomenon at macroecological scales. Using data on the relative abundance of coral reef wrasses and parrotfishes (f. Labridae) spread across three ocean basins and the Red Sea, we reveal the consistent global dominance of extreme wave-swept habitats by fishes in the genus Thalassoma, with abundances up to 15 times higher than any other labrid...
January 2017: Ecology and Evolution
https://www.readbyqxmd.com/read/28069770/recent-advances-in-high-capacity-free-space-optical-and-radio-frequency-communications-using-orbital-angular-momentum-multiplexing
#5
REVIEW
Alan E Willner, Yongxiong Ren, Guodong Xie, Yan Yan, Long Li, Zhe Zhao, Jian Wang, Moshe Tur, Andreas F Molisch, Solyman Ashrafi
There is a continuing growth in the demand for data bandwidth, and the multiplexing of multiple independent data streams has the potential to provide the needed data capacity. One technique uses the spatial domain of an electromagnetic (EM) wave, and space division multiplexing (SDM) has become increasingly important for increased transmission capacity and spectral efficiency of a communication system. A subset of SDM is mode division multiplexing (MDM), in which multiple orthogonal beams each on a different mode can be multiplexed...
February 28, 2017: Philosophical Transactions. Series A, Mathematical, Physical, and Engineering Sciences
https://www.readbyqxmd.com/read/28069573/relations-between-aortic-stiffness-and-left-ventricular-mechanical-function-in-the-community
#6
Vanessa Bell, Elizabeth L McCabe, Martin G Larson, Jian Rong, Allison A Merz, Ewa Osypiuk, Birgitta T Lehman, Plamen Stantchev, Jayashri Aragam, Emelia J Benjamin, Naomi M Hamburg, Ramachandran S Vasan, Gary F Mitchell, Susan Cheng
BACKGROUND: Aortic stiffness impairs optimal ventricular-vascular coupling and left ventricular systolic function, particularly in the long axis. Left ventricular global longitudinal strain (GLS) has recently emerged as a sensitive measure of early cardiac dysfunction. In this study, we investigated the relation between aortic stiffness and GLS in a large community-based sample. METHODS AND RESULTS: In 2495 participants (age 39-90 years, 57% women) of the Framingham Offspring and Omni cohorts, free of cardiovascular disease, we performed tonometry to measure arterial hemodynamics and echocardiography to assess cardiac function...
January 9, 2017: Journal of the American Heart Association
https://www.readbyqxmd.com/read/28067629/standardized-echocardiographic-assessment-of-cardiac-function-in-normal-adult-zebrafish-and-heart-disease-models
#7
Louis W Wang, Inken G Huttner, Celine F Santiago, Scott H Kesteven, Ze-Yan Yu, Michael P Feneley, Diane Fatkin
The zebrafish (Danio rerio) is an increasingly popular model organism in cardiovascular research. Major insights into cardiac developmental processes have been gained by studies of embryonic zebrafish. However, the utility of zebrafish for modeling adult-onset heart disease has been limited by a lack of robust methods for in vivo evaluation of cardiac function. We established a physiological protocol for underwater zebrafish echocardiography using high frequency ultrasound, and evaluated its reliability in detecting altered cardiac function in two disease models...
January 1, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28067219/luminescent-hyperbolic-metasurfaces
#8
J S T Smalley, F Vallini, S A Montoya, L Ferrari, S Shahin, C T Riley, B Kanté, E E Fullerton, Z Liu, Y Fainman
When engineered on scales much smaller than the operating wavelength, metal-semiconductor nanostructures exhibit properties unobtainable in nature. Namely, a uniaxial optical metamaterial described by a hyperbolic dispersion relation can simultaneously behave as a reflective metal and an absorptive or emissive semiconductor for electromagnetic waves with orthogonal linear polarization states. Using an unconventional multilayer architecture, we demonstrate luminescent hyperbolic metasurfaces, wherein distributed semiconducting quantum wells display extreme absorption and emission polarization anisotropy...
January 9, 2017: Nature Communications
https://www.readbyqxmd.com/read/28065540/cardiac-shear-wave-velocity-detection-in-the-porcine-heart
#9
Hendrik J Vos, Bas M van Dalen, Ilkka Heinonen, Johan G Bosch, Oana Sorop, Dirk J Duncker, Antonius F W van der Steen, Nico de Jong
Cardiac muscle stiffness can potentially be estimated non-invasively with shear wave elastography. Shear waves are present on the septal wall after mitral and aortic valve closure, thus providing an opportunity to assess stiffness in early systole and early diastole. We report on the shear wave recordings of 22 minipigs with high-frame-rate echocardiography. The waves were captured with 4000 frames/s using a programmable commercial ultrasound machine. The wave pattern was extracted from the data through a local tissue velocity estimator based on one-lag autocorrelation...
January 5, 2017: Ultrasound in Medicine & Biology
https://www.readbyqxmd.com/read/28063420/semiclassical-basis-sets-for-the-computation-of-molecular-vibrational-states
#10
F Revuelta, E Vergini, R M Benito, F Borondo
In this paper, we extend a method recently reported [F. Revuelta et al., Phys. Rev. E 87, 042921 (2013)] for the calculation of the eigenstates of classically highly chaotic systems to cases of mixed dynamics, i.e., those presenting regular and irregular motions at the same energy. The efficiency of the method, which is based on the use of a semiclassical basis set of localized wave functions, is demonstrated by applying it to the determination of the vibrational states of a realistic molecular system, namely, the LiCN molecule...
January 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28063364/lamb-waves-propagation-in-layered-piezoelectric-piezomagnetic-plates
#11
Hamdi Ezzin, Morched Ben Amor, Mohamed Hédi Ben Ghozlen
A dynamic solution is presented for the propagation of harmonic waves in magneto-electro-elastic plates composed of piezoelectric BaTiO3(B) and magnetostrictive CoFe2O4(F) material. The state-vector approach is employed to derive the propagator matrix which connects the field variables at the upper interface to those at the lower interface of each layer. The ordinary differential approach is employed to determine the wave propagating characteristics in the plate by imposing the traction-free boundary condition on the top and bottom surfaces of the layered plate...
December 26, 2016: Ultrasonics
https://www.readbyqxmd.com/read/28060776/an-electric-field-representation-of-the-harmonic-xy-model
#12
Michael F Faulkner, Steven T Bramwell, Peter C W Holdsworth
The two-dimensional harmonic XY (HXY) model is a spin model in which the classical spins interact via a piecewise parabolic potential. We argue that the HXY model should be regarded as the canonical classical lattice spin model of phase fluctuations in two-dimensional condensates, as it is the simplest model that guarantees the modular symmetry of the experimental systems. Here we formulate a lattice electric-field representation of the HXY model and contrast this with an analogous representation of the Villain model and the two-dimensional Coulomb gas with a purely rotational auxiliary field...
January 6, 2017: Journal of Physics. Condensed Matter: An Institute of Physics Journal
https://www.readbyqxmd.com/read/28059541/delocalization-of-a-vacancy-across-two-neon-atoms-bound-by-the-van-der-waals-force
#13
H Sann, C Schober, A Mhamdi, F Trinter, C Müller, S K Semenov, M Stener, M Waitz, T Bauer, R Wallauer, C Goihl, J Titze, F Afaneh, L Ph H Schmidt, M Kunitski, H Schmidt-Böcking, Ph V Demekhin, N A Cherepkov, M S Schöffler, T Jahnke, R Dörner
We experimentally study 2p photoionization of neon dimers (Ne_{2}) at a photon energy of hν=36.56  eV. By postselection of ionization events which lead to a dissociation into Ne^{+}+Ne we obtain the photoelectron angular emission distribution in the molecular frame. This distribution is symmetric with respect to the direction of the charged vs neutral fragment. It shows an inverted Cohen-Fano double slit interference pattern of two spherical waves emitted coherently but with opposite phases from the two atoms of the dimer...
December 23, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/28059310/inter-modal-four-wave-mixing-study-in-a-two-mode-fiber
#14
S M M Friis, I Begleris, Y Jung, K Rottwitt, P Petropoulos, D J Richardson, P Horak, F Parmigiani
We demonstrate efficient four-wave mixing among different spatial modes in a 1-km long two-mode fiber at telecommunication wavelengths. Two pumps excite the LP<sub>01</sub> and LP<sub>11</sub> modes, respectively, while the probe signal excites the LP<sub>01</sub> mode, and the phase conjugation (PC) and Bragg scattering (BS) idlers are generated in the LP<sub>11</sub> mode. For these processes we experimentally characterize their phase matching efficiency and bandwidth and find that they depend critically on the wavelength separation of the two pumps, in good agreement with the numerical study we carried out...
December 26, 2016: Optics Express
https://www.readbyqxmd.com/read/28056281/-value-of-fragmented-qrs-wave-in-evaluating-the-prognosis-of-patients-with-coronary-artery-disease
#15
Y J Shi, Y F Sun, L Gao, Y D Chen, J L Wang, Q Dan, Y Zhang
Objective: The aim of the current study was to investigate the predictive value of fragmented QRS wave ( fQRS) for the prognosis of patients with coronary heart disease (CHD). Methods: A total of 714 consecutive patients with confirmed CHD were included from Department of Cardiology, General Hospital of PLA between January 2013 and January 2014, and were divided into fQRS group and non-fQRS group based on the presence of fQRS wave or not according to Electrocardiograph (ECG). The baseline, ECG characteristic value, the echocardiography results of the patients were compared between the two groups...
January 3, 2017: Zhonghua Yi Xue za Zhi [Chinese medical journal]
https://www.readbyqxmd.com/read/28054396/incremental-value-of-contrast-echocardiography-in-the-evaluation-of-a-cardiac-thrombus
#16
Jose Ricardo F Po, Matthew S Tong, Erica L Grove, Robert W W Biederman
A 52-year-old man presented with altered mental status and report of prior complaint of chest pain. On electrocardiography, anterolateral ST-segment elevations with Q-waves in the septal leads were seen. Initial echocardiography images demonstrated a thickened anteroseptum. Further imaging showed the presence of a well-attached laminated apical thrombus. Contrast echocardiography images showed that the thrombus had minimal attachment to the endocardial surface. CT head subsequently showed the presence of acute stroke...
January 5, 2017: Echocardiography
https://www.readbyqxmd.com/read/28052352/predicting-core-level-binding-energies-shifts-suitability-of-the-projector-augmented-wave-approach-as-implemented-in-vasp
#17
Noèlia Pueyo Bellafont, Francesc Viñes, Wolfgang Hieringer, Francesc Illas
Here, we assess the accuracy of various approaches implemented in Vienna ab initio simulation package code to estimate core-level binding energy shifts (ΔBEs) using a projector augmented wave method to treat core electrons. The performance of the Perdew-Burke-Ernzerhof (PBE) and the Tao-Perdew-Staroverov-Scuseria (TPSS) exchange-correlation density functionals is examined on a dataset of 68 molecules containing B→F atoms in diverse chemical environments, accounting for 185 different 1s core level binding energy shifts, for which both experimental gas-phase X-ray photoemission (XPS) data and accurate all electron ΔBEs are available...
January 4, 2017: Journal of Computational Chemistry
https://www.readbyqxmd.com/read/28051188/superconductivity-bordering-rashba-type-topological-transition
#18
M L Jin, F Sun, L Y Xing, S J Zhang, S M Feng, P P Kong, W M Li, X C Wang, J L Zhu, Y W Long, H Y Bai, C Z Gu, R C Yu, W G Yang, G Y Shen, Y S Zhao, H K Mao, C Q Jin
Strong spin orbital interaction (SOI) can induce unique quantum phenomena such as topological insulators, the Rashba effect, or p-wave superconductivity. Combining these three quantum phenomena into a single compound has important scientific implications. Here we report experimental observations of consecutive quantum phase transitions from a Rashba type topological trivial phase to topological insulator state then further proceeding to superconductivity in a SOI compound BiTeI tuned via pressures. The electrical resistivity measurement with V shape change signals the transition from a Rashba type topological trivial to a topological insulator phase at 2 GPa, which is caused by an energy gap close then reopen with band inverse...
January 4, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28049706/coordination-of-cell-cycle-progression-and-mitotic-spindle-assembly-involves-histone-h3-lysine-4-methylation-by-set1-compass
#19
Traude H Beilharz, Paul F Harrison, Douglas Maya Miles, Michael Ming See, Uyen Minh Merry Le, Ming Kalanon, Melissa Jane Curtis, Qambar Hasan, Julie Saksouk, Thanasis Margaritis, Frank Holstege, Vincent Geli, Bernhard Dichtl
Methylation of histone H3 lysine 4 (H3K4) by Set1 complex/COMPASS is a hallmark of eukaryotic chromatin, but it remains poorly understood how this post-translational modification contributes to the regulation of biological processes like the cell cycle. Here, we report a H3K4 methylation-dependent pathway in Saccharomyces cerevisiae that governs toxicity toward benomyl, a microtubule destabilizing drug. Benomyl-sensitive growth of wild-type cells required mono- and dimethylation of H3K4 and Pho23, a PHD-containing subunit of the Rpd3L complex...
January 2017: Genetics
https://www.readbyqxmd.com/read/28048747/su-f-t-230-a-simple-method-to-assess-accuracy-of-dynamic-wave-arc-irradiation-using-an-electronic-portal-imaging-device-and-log-files
#20
H Hirashima, Y Miyabe, K Yokota, M Nakamura, N Mukumoto, T Mizowaki, M Hiraoka
PURPOSE: The Dynamic Wave Arc (DWA) technique, where the multi-leaf collimator (MLC) and gantry/ring move simultaneously in a predefined non-coplanar trajectory, has been developed on the Vero4DRT. The aim of this study is to develop a simple method for quality assurance of DWA delivery using an electronic portal imaging device (EPID) measurements and log files analysis. METHODS: The Vero4DRT has an EPID on the beam axis, the resolution of which is 0.18 mm/pixel at the isocenter plane...
June 2016: Medical Physics
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