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https://www.readbyqxmd.com/read/27913923/actn3-x-allele-carriers-had-greater-levels-of-muscle-damage-during-a-half-ironman
#1
Juan Del Coso, Juan José Salinero, Beatriz Lara, César Gallo-Salazar, Francisco Areces, Carlos Puente, David Herrero
PURPOSE: Alpha-actinin-3, encoded by the ACTN3 gene, is an actin-binding protein with an important role in myofibril contraction and muscle force output. In humans, there is a relatively common deficiency of the α-actinin-3 due to homozygosity in a polymorphism of the ACTN3 gene (R577X, rs1815739), that has been related to decreased resistance to strain during voluntary muscle contractions. The purpose of this study was to investigate the influence of the ACTN3 genotype on the level of exercise-induced muscle damage attained by 23 experienced triathletes during an official half-ironman competition...
December 2, 2016: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/27913869/ranibizumab-for-vascularized-pigment-epithelial-detachment-1-year-anatomic-and-functional-results
#2
Olivier Chevreaud, Hassiba Oubraham, Salomon Y Cohen, Camille Jung, Rocio Blanco-Garavito, Farah Gherdaoui, Eric H Souied
PURPOSE: To assess the anatomical and functional efficacy of ranibizumab on vascularized pigment epithelial detachment (V-PED) secondary to neovascular age-related macular degeneration (nAMD). METHODS: One hundred and nine patients (116 eyes) were retrospectively selected from medical records of 2097 patients who benefited from intravitreal injection between January 2011 and June 2013 in a tertiary-care University-based Department of Ophthalmology. Inclusion criteria were: nAMD, treatment-naive eyes, presence of V-PED higher than 250 μm, intravitreal ranibizumab with a loading phase, followed by a pro-re-nata regimen, and 1-year follow-up...
December 3, 2016: Graefe's Archive for Clinical and Experimental Ophthalmology
https://www.readbyqxmd.com/read/27913836/association-between-waist-to-height-ratio-and-postpartum-urinary-incontinence
#3
Yan Li, Zhenyu Zhang
INTRODUCTION AND HYPOTHESIS: Obesity is an established and variable risk factor for postpartum urinary incontinence. However, the available anthropometric measurements are not comprehensive. We hypothesized that waist-to-height ratio (WHTR), which is a good indicator of abdominal adiposity, would be associated with postpartum urinary incontinence. METHODS: For this cross-sectional study, we recruited 1,137 women who were invited to visit our hospital outpatient service for a pelvic floor examination...
December 2, 2016: International Urogynecology Journal
https://www.readbyqxmd.com/read/27913442/comparison-of-anti-vegf-therapies-on-fibrovascular-pigment-epithelial-detachments-in-age-related-macular-degeneration
#4
Adrian Au, Vishal S Parikh, Rishi P Singh, Justis P Ehlers, Alex Yuan, Aleksandra V Rachitskaya, Jonathan E Sears, Sunil K Srivastava, Peter K Kaiser, Andrew P Schachat, Daniel F Martin, Yasha Modi
BACKGROUND: The aim is to compare the therapeutic effects of three antivascular endothelial growth factor (VEGF) drugs (bevacizumab, aflibercept and ranibizumab) on fibrovascular pigment epithelial detachments (fvPEDs) in age-related macular degeneration (AMD). METHODS: This was a retrospective, comparative, consecutive case series of 88 unique eyes with fvPEDs in neovascular AMD treated with anti-VEGF monotherapy for a minimum of 6 months. All eyes were treatment naive...
December 2, 2016: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/27913089/a-combined-one-stage-surgical-approach-of-orbital-tumor-debulking-lid-reconstruction-and-ptosis-repair-in-children-with-orbitotemporal-neurofibromatosis
#5
Shay Keren, Gad Dotan, Ran Ben-Cnaan, Leah Leibovitch, Igal Leibovitch
BACKGROUND AND AIM: To describe a series of children with neurofibromatosis type 1 (NF1) and a plexiform neurofibroma of the orbit with ptosis who underwent a combined one-stage surgery for tumor debulking, lid reconstruction, and ptosis repair. METHODS: A retrospective review of 6 cases of combined one-step surgeries for orbital plexiform neurofibroma with ptosis. RESULTS: The study included 6 children (4 boys, mean age 3.4 years). Follow-up time was at least 9 months...
November 11, 2016: Journal of Plastic, Reconstructive & Aesthetic Surgery: JPRAS
https://www.readbyqxmd.com/read/27912976/implications-of-a-negative-abdominal-ct-in-the-management-of-pediatric-blunt-abdominal-trauma
#6
Sarah Braungart, Thomas Beattie, Paula Midgley, Mark Powis
BACKGROUND: No consensus exists on management of children with a negative trauma CT following blunt abdominal trauma (BAT). Asymptomatic children are frequently "admitted for observation" following negative CT owing to concerns about missing an intraabdominal injury (IAI) without evidence for this practice. We aimed to investigate the feasibility of discharge following a negative CT scan in children sustaining blunt abdominal trauma. METHODS: Retrospective audit at a UK paediatric major trauma center and review of the literature...
November 14, 2016: Journal of Pediatric Surgery
https://www.readbyqxmd.com/read/27912761/relationship-between-weight-status-and-health-related-quality-of-life-in-chinese-primary-school-children-in-guangzhou-a-cross-sectional-study
#7
Wei Liu, Rong Lin, Weijia Liu, Zhongshan Guo, Lihua Xiong, Bai Li, K K Cheng, Peymane Adab, Miranda Pallan
BACKGROUND: To investigate the association between weight status and health-related quality of life (HRQOL) among pupils in Guangzhou, China. METHODS: The study comprised 5781 children aged 8-12 years from 29 schools. Height and weight were objectively measured using standardized methods, and BMI z-score derived using the age and sex specific WHO reference 2007 for 5-19 years. Weight status was classified as underweight (<-2SD), healthy weight (between -2SD and 1SD), overweight/obesity (>1SD)...
December 3, 2016: Health and Quality of Life Outcomes
https://www.readbyqxmd.com/read/27912109/characterization-and-fine-mapping-of-a-novel-premature-leaf-senescence-mutant-yellow-leaf-and-dwarf-1-in-rice
#8
Luchang Deng, Peng Qin, Zhi Liu, Geling Wang, Weilan Chen, Jianhua Tong, Langtao Xiao, Bin Tu, Yuantao Sun, Wei Yan, Hang He, Jun Tan, Xuewei Chen, Yuping Wang, Shigui Li, Bingtian Ma
Leaves are the main organs in which photosynthates are produced. Leaf senescence facilitates the translocation of photosynthates and nutrients from source to sink, which is important for plant development and especially for crop yield. However, the molecular mechanism of leaf senescence is unknown. Here, we identified a mutant, yellow leaf and dwarf 1 (yld1), which exhibited decreased plant height and premature leaf senescence. Nitroblue tetrazolium and diamiobenzidine staining analyses revealed that the concentrations of reactive oxygen species were higher in yld1 leaves than in wild type leaves...
November 22, 2016: Plant Physiology and Biochemistry: PPB
https://www.readbyqxmd.com/read/27912007/global-patterns-and-determinants-of-forest-canopy-height
#9
Shengli Tao, Qinghua Guo, Chao Li, Zhiheng Wang, Jingyun Fang
Forest canopy height is an important indicator of forest biomass, species diversity, and other ecosystem functions; however, the climatic determinants that underlie its global patterns have not been fully explored. Using satellite LiDAR-derived forest canopy heights and field measurements of the world's giant trees, combined with climate indices, we evaluated the global patterns and determinants of forest canopy height. The mean canopy height was highest in tropical regions, but tall forests (>50 m) occur at various latitudes...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911995/allometry-data-and-equations-for-coastal-marsh-plants
#10
Meng Lu, Joshua S Caplan, Jonathan D Bakker, J Adam Langley, Thomas J Mozdzer, Bert G Drake, J Patrick Megonigal
Coastal marshes are highly valued for ecosystem services such as protecting inland habitats from storms, sequestering carbon, removing nutrients and other pollutants from surface water, and providing habitat for fish, shellfish, and birds. Because plants largely determine the structure and function of coastal marshes, quantifying plant biomass is essential for evaluating these ecosystem services, understanding the biogeochemical processes that regulate ecosystem function, and forecasting tidal wetland responses to accelerated sea level rise...
December 2016: Ecology
https://www.readbyqxmd.com/read/27911520/role-of-multiple-soliton-interactions-in-the-generation-of-rogue-waves-the-modified-korteweg-de-vries-framework
#11
A V Slunyaev, E N Pelinovsky
The role of multiple soliton and breather interactions in the formation of very high waves is disclosed within the framework of the integrable modified Korteweg-de Vries (MKdV) equation. Optimal conditions for the focusing of many solitons are formulated explicitly. Namely, trains of ordered solitons with alternate polarities evolve to huge strongly localized transient waves. The focused wave amplitude is exactly the sum of the focusing soliton heights; the maximum wave inherits the polarity of the fastest soliton in the train...
November 18, 2016: Physical Review Letters
https://www.readbyqxmd.com/read/27910691/compact-ecei-system-with-in-vessel-reflective-optics-for-west
#12
Y B Nam, H K Park, W Lee, G S Yun, M Kim, R Sabot, D Elbeze, P Lotte, J Shen
An electron cyclotron emission imaging (ECEI) diagnostic system for WEST (W Environment for Steady state Tokamak) is under development to study the MHD instabilities affected by tungsten impurities. The system will provide 2-D Te fluctuation images (width × height = ∼18 cm × ∼ 34 cm at low field side and ∼13 cm × ∼ 39 cm at high field side) from a poloidal cross section with high spatial (≤1.7 cm) and temporal (≤2 μs) resolutions. While the key concept and electronic structure are similar to that of prior ECEI systems on other tokamak devices such as KSTAR, DIII-D, or ASDEX-U, part of the imaging optics have to be placed inside the vacuum vessel in order to resolve issues on limited installation space and longer beam path to the detector position...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910644/development-of-plasma-bolometers-using-fiber-optic-temperature-sensors
#13
M L Reinke, M Han, G Liu, G G van Eden, R Evenblij, M Haverdings, B C Stratton
Measurements of radiated power in magnetically confined plasmas are important for exhaust studies in present experiments and expected to be a critical diagnostic for future fusion reactors. Resistive bolometer sensors have long been utilized in tokamaks and helical devices but suffer from electromagnetic interference (EMI). Results are shown from initial testing of a new bolometer concept based on fiber-optic temperature sensor technology. A small, 80 μm diameter, 200 μm long silicon pillar attached to the end of a single mode fiber-optic cable acts as a Fabry-Pérot cavity when broadband light, λo ∼ 1550 nm, is transmitted along the fiber...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910624/a-scanning-hall-probe-microscope-for-high-resolution-large-area-variable-height-magnetic-field-imaging
#14
Gorky Shaw, R B G Kramer, N M Dempsey, K Hasselbach
We present a scanning Hall probe microscope operating in ambient conditions. One of the unique features of this microscope is the use of the same stepper motors for both sample positioning as well as scanning, which makes it possible to have a large scan range (few mm) in the x and y directions, with a scan resolution of 0.1 μm. Protocols have been implemented to enable scanning at different heights from the sample surface. The z range is 35 mm. Microstructured Hall probes of size 1-5 μm have been developed...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910606/front-end-antenna-system-design-for-the-iter-low-field-side-reflectometer-system-using-genray-ray-tracing
#15
G Wang, E J Doyle, W A Peebles
A monostatic antenna array arrangement has been designed for the microwave front-end of the ITER low-field-side reflectometer (LFSR) system. This paper presents details of the antenna coupling coefficient analyses performed using GENRAY, a 3-D ray tracing code, to evaluate the plasma height accommodation capability of such an antenna array design. Utilizing modeled data for the plasma equilibrium and profiles for the ITER baseline and half-field scenarios, a design study was performed for measurement locations varying from the plasma edge to inside the top of the pedestal...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910604/response-function-of-single-crystal-synthetic-diamond-detectors-to-1-4-mev-neutrons-for-spectroscopy-of-d-plasmas
#16
M Rebai, L Giacomelli, A Milocco, M Nocente, D Rigamonti, M Tardocchi, F Camera, C Cazzaniga, Z J Chen, T F Du, T S Fan, A Giaz, Z M Hu, T Marchi, X Y Peng, G Gorini
A Single-crystal Diamond (SD) detector prototype was installed at Joint European Torus (JET) in 2013 and the achieved results have shown its spectroscopic capability of measuring 2.5 MeV neutrons from deuterium plasmas. This paper presents measurements of the SD response function to monoenergetic neutrons, which is a key point for the development of a neutron spectrometer based on SDs and compares them with Monte Carlo simulations. The analysis procedure allows for a good reconstruction of the experimental results...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910597/note-attenuation-motion-of-acoustically-levitated-spherical-rotor
#17
P Lü, Z Y Hong, J F Yin, N Yan, W Zhai, H P Wang
Here we observe the attenuation motion of spherical rotors levitated by near-field acoustic radiation force and analyze the factors that affect the duration time of free rotation. It is found that the rotating speed of freely rotating rotor decreases exponentially with respect to time. The time constant of exponential attenuation motion depends mainly on the levitation height, the mass of rotor, and the depth of concave ultrasound emitter. Large levitation height, large mass of rotor, and small depth of concave emitter are beneficial to increase the time constant and hence extend the duration time of free rotation...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910551/x-ray-analysis-of-electron-bernstein-wave-heating-in-mst
#18
A H Seltzman, J K Anderson, A M DuBois, A Almagri, C B Forest
A pulse height analyzing x-ray tomography system has been developed to detect x-rays from electron Bernstein wave heated electrons in the Madison symmetric torus reversed field pinch (RFP). Cadmium zinc telluride detectors are arranged in a parallel beam array with two orthogonal multi-chord detectors that may be used for tomography. In addition a repositionable 16 channel fan beam camera with a 55° field of view is used to augment data collected with the Hard X-ray array. The chord integrated signals identify target emission from RF heated electrons striking a limiter located 12° toroidally away from the RF injection port...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910503/characterization-of-x-ray-framing-cameras-for-the-national-ignition-facility-using-single-photon-pulse-height-analysis
#19
J P Holder, L R Benedetti, D K Bradley
Single hit pulse height analysis is applied to National Ignition Facility x-ray framing cameras to quantify gain and gain variation in a single micro-channel plate-based instrument. This method allows the separation of gain from detectability in these photon-detecting devices. While pulse heights measured by standard-DC calibration methods follow the expected exponential distribution at the limit of a compound-Poisson process, gain-gated pulse heights follow a more complex distribution that may be approximated as a weighted sum of a few exponentials...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910459/upgrades-of-poloidal-and-tangential-x-ray-imaging-crystal-spectrometers-for-temperature-and-rotation-measurements-on-east
#20
Fudi Wang, Jun Chen, Ruiji Hu, Bo Lyu, Gilles Colledani, Jia Fu, Yingying Li, Manfred Bitter, Kenneth Hill, Sangon Lee, Minyou Ye, Yuejiang Shi, Baonian Wan
During the past two years, key parts of poloidal and tangential x-ray imaging crystal spectrometers (PXCSs and TXCSs) have been upgraded. For poloidal XCSs, double-crystals of ArXVII and FeXXV were deployed. For fulfilling in situ alignment of a poloidal XCS, the beryllium window must be flexibly removed. By utilizing a design, where the beryllium window was installed in the vacuum chamber of the double-crystal, and between the double-crystal and wall of this chamber, an in situ alignment for the two spectrometers was fulfilled...
November 2016: Review of Scientific Instruments
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