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https://www.readbyqxmd.com/read/27911352/medical-equipment-antiseptic-processes-using-the-atmospheric-plasma-sprayed-copper-coatings
#1
M Goudarzi, Sh Saviz, M Ghoranneviss, A Salar Elahi
Antibacterial surfaces such as copper coatings are able to reduce the growth of bacteria. In this study, copper coatings was deposited on the 316 stainless steel substrates by a handmade device operating as an atmospheric plasma spraying system. The chemical composition microstructure and morphology surface of the coatings are examined by x-ray diffraction (XRD) and scanning electron microscope (SEM) and back scattering electron microscope (BSE). Micro hardness as one of the key properties of the coating is characterized based on cross-section...
November 30, 2016: Journal of X-ray Science and Technology
https://www.readbyqxmd.com/read/27911342/impulsive-and-compulsive-behaviors-in%C3%A2-parkinson-disease-the-norwegian-parkwest-study
#2
Aleksander H Erga, Guido Alves, Jan Petter Larsen, Ole Bj Rn Tysnes, Kenn Freddy Pedersen
BACKGROUND: Impulsive and compulsive behaviors (ICBs) are frequent in Parkinson's disease (PD), but data from population-based cohorts is lacking. OBJECTIVES: To determine the frequency and associated demographic, clinical, neuropsychiatric and cognitive features of ICBs in a population-based PD cohort. METHODS: This cross-sectional study included 125 patients with PD and 159 age- and gender-matched normal controls recruited from the Norwegian ParkWest study...
November 30, 2016: Journal of Parkinson's Disease
https://www.readbyqxmd.com/read/27911300/association-between-plasma-ceramides-and-phosphatidylcholines-and-hippocampal-brain-volume-in-late-onset-alzheimer-s-disease
#3
Min Kim, Alejo Nevado-Holgado, Luke Whiley, Stuart G Snowden, Hilkka Soininen, Iwona Kloszewska, Patrizia Mecocci, Magda Tsolaki, Bruno Vellas, Madhav Thambisetty, Richard J B Dobson, John F Powell, Michelle K Lupton, Andy Simmons, Latha Velayudhan, Simon Lovestone, Petroula Proitsi, Cristina Legido-Quigley
Lipids such as ceramides (Cer) and phosphatidylcholines (PC) have been found altered in the plasma of Alzheimer's disease (AD) patients in a number of discovery studies. For this reason, the levels of 6 ceramides and 3 PCs, with different fatty acid length and saturation levels, were measured in the plasma from 412 participants (AD n = 205, Control n = 207) using mass spectrometry coupled with ultra-performance liquid chromatography. After this, associations with AD status, brain atrophy, and age-related effects were studied...
November 26, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911289/the-brain-s-structural-connectome-mediates-the-relationship-between-regional-neuroimaging-biomarkers-in%C3%A2-alzheimer-s-disease
#4
Sneha Pandya, Amy Kuceyeski, Ashish Raj
Alzheimer's disease (AD), one of the most common causes of dementia in adults, is a progressive neurodegenerative disorder exhibiting well-defined neuropathological hallmarks. It is known that disease pathology involves misfolded amyloid-β (Aβ) and tau proteins, and exhibits a relatively stereotyped progression over decades. The relationship between AD neuropathological hallmarks (Aβ, hypometabolism, and tau proteins) and imaging biomarkers (MRI, AV-45/FDG-PET) is not fully understood. In addition, biomarker pathologies are oftentimes discordant, wherein it may show varying levels of abnormality across brain regions...
November 28, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27911262/magnetic-resonance-elastography-vs-transient-elastography-in-detection-of-fibrosis-and-noninvasive-measurement-of-steatosis-in-patients-with-biopsy-proven-nonalcoholic-fatty-liver-disease
#5
Charlie C Park, Phirum Nguyen, Carolyn Hernandez, Ricki Bettencourt, Kimberly Ramirez, Lynda Fortney, Jonathan Hooker, Ethan Sy, Mosab H Alquiraish, Mark A Valasek, Emily Rizo, Lisa Richards, David Brenner, Claude B Sirlin, Rohit Loomba
BACKGROUND & AIMS: Magnetic-resonance-imaging (MRI) techniques and ultrasound-based transient elastography (TE) can be used in noninvasive diagnosis of fibrosis and steatosis in patients with nonalcoholic fatty liver disease (NAFLD). We performed a prospective study to compare the performance of magnetic resonance elastography (MRE) vs TE for in diagnosis of fibrosis, and MRI-based proton density fat fraction (MRI-PDFF) analysis vs TE-based controlled attenuation parameter (CAP) for diagnosis of steatosis in patients undergoing biopsy to assess NAFLD...
October 27, 2016: Gastroenterology
https://www.readbyqxmd.com/read/27911236/patient-versus-physician-reported-facial-disability-in-vestibular-schwannoma-an-international-cross-sectional-study
#6
Øystein Vesterli Tveiten, Matthew L Carlson, Frederik Goplen, Erling Myrseth, Colin L W Driscoll, Rupavathana Mahesparan, Michael J Link, Morten Lund-Johansen
OBJECTIVE Patient-reported outcomes are increasingly used in studies of vestibular schwannoma (VS); however, few studies have examined self-evaluated facial nerve function and its relation to physician-reported outcomes. The primary objective of this study was to compare patient self-evaluations of facial disability with physician-evaluated facial nerve status and with self-evaluations of a healthy control group. The second objective was to provide insight into the controversial subject of the optimal initial management of small- and medium-sized VSs; consequently, the authors compared patient-reported facial nerve disability following treatment via observation (OBS), Gamma Knife surgery (GKS), or microsurgery (MS)...
December 2, 2016: Journal of Neurosurgery
https://www.readbyqxmd.com/read/27911121/endocan-is-a-predictor-of-increased-cardiovascular-risk-in-women-with-polycystic-ovary-syndrome
#7
Merve Bicer, Aslı Guler, Gokcen Unal Kocabas, Cetin Imamoglu, Ali Baloglu, Oktay Bilgir, Arif Yuksel, Giray Bozkaya, Mehmet Calan
PURPOSE: Endocan is a proteoglycan secreted mainly from endothelial cells. It has been implicated that there is a link between endocan and endothelial dysfunction. Polycystic ovary syndrome (PCOS) is a reproductive and metabolic disease associated with increased risk of cardiovascular events. The aims of this study were to ascertain whether circulating endocan levels are altered in women with PCOS, and whether there is an association between endocan and carotid intima media thickness (cIMT)...
December 2, 2016: Endocrine Research
https://www.readbyqxmd.com/read/27911114/changes-of-tangential-traction-after-macular-peeling-correlation-between-en-face-analysis-and-macular-sensitivity
#8
Mario R Romano, Gilda Cennamo, Ida Cesarano, Domenico Cardone, Giuseppe Nicoletti, Rodolfo Mastropasqua, Giovanni Cennamo
PURPOSE: To assess the epi- and intra-retinal morphology changes of the tangential tractions following vitreoretinal surgery for epiretinal membranes and to investigate the correlation between the depth of retinal changes and functional macular sensitivity (MS). METHODS: This is a prospective cross-sectional interventional study, in which 73 eyes of 73 patients with diagnosis of idiopathic epiretinal membrane (iERM) were evaluated. All patients received complete ophthalmic evaluation, including axial and en-face scanning spectral domain-optical coherence tomography (SD-OCT) analysis and microperimetry...
December 2, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27911098/siga-deficiency-in-individual-small-airways-is-associated-with-persistent-inflammation-and-remodeling
#9
Vasiliy V Polosukhin, Bradley W Richmond, Rui-Hong Du, Justin M Cates, Pingsheng Wu, Hui Nian, Pierre P Massion, Lorraine B Ware, Jae Woo Lee, Alexey V Kononov, William E Lawson, Timothy S Blackwell
RATIONALE: Maintenance of a surface immune barrier is important for homeostasis in organs with mucosal surfaces that interface with the external environment; however, the role of the mucosal immune system in chronic lung diseases is incompletely understood. OBJECTIVES: We examined the relationship between secretory immunoglobulin A (SIgA) on the mucosal surface of small airways and parameters of inflammation and airway wall remodeling in chronic obstructive pulmonary disease (COPD)...
December 2, 2016: American Journal of Respiratory and Critical Care Medicine
https://www.readbyqxmd.com/read/27911091/who-adopts-queer-and-pansexual-sexual-identities
#10
James S Morandini, Alexander Blaszczynski, Ilan Dar-Nimrod
Some nonheterosexual individuals are eschewing lesbian/gay and bisexual identities for queer and pansexual identities. The present study aimed to examine the sexual and demographic characteristics of nonheterosexual individuals who adopt these labels. A convenience sample of 2,220 nonheterosexual (1,459 lesbian/gay, 413 bisexual, 168 queer, 146 pansexual, and 34 other "write-in") individuals were recruited for a cross-sectional online survey. In support of our hypotheses, those adopting pansexual identities were younger than those adopting lesbian, gay, and bisexual identities, and those adopting queer and pansexual identities were more likely to be noncisgender than cisgender, and more likely to be cisgender women than men...
December 2, 2016: Journal of Sex Research
https://www.readbyqxmd.com/read/27911003/current-psychotropic-medication-prescribing-patterns-in-late-life-bipolar-disorder
#11
Soham Rej, Nathan Herrmann, Kenneth Shulman, Hadas D Fischer, Kinwah Fung, Andrea Gruneir
OBJECTIVE: Many patients with bipolar disorder are reaching old age, but whether they are receiving evidence-based psychotropic treatment remains unclear. Our objective was to describe current psychotropic prescribing patterns in a large Canadian late-life bipolar sample. METHODS: Population-based cross-sectional study of 1443 bipolar disorder patients aged ≥ 66, discharged from a psychiatric hospitalization in Ontario, Canada from 1 April 2006 to 31 March 2012...
December 2, 2016: International Journal of Geriatric Psychiatry
https://www.readbyqxmd.com/read/27910920/the-dose-dependent-efficiency-of-radial-shock-wave-therapy-for-patients-with-carpal-tunnel-syndrome-a-prospective-randomized-single-blind-placebo-controlled-trial
#12
Ming-Jen Ke, Liang-Cheng Chen, Yu-Ching Chou, Tsung-Ying Li, Heng-Yi Chu, Chia-Kuang Tsai, Yung-Tsan Wu
Recently, extracorporeal shock wave therapy (ESWT) has been shown to be a novel therapy for carpal tunnel syndrome (CTS). However, previous studies did not examine the diverse effects of different-session ESWT for different-grades CTS. Thus, we conducted a randomized, single-blind, placebo-controlled study. Sixty-nine patients (90 wrists) with mild to moderate CTS were randomized into 3 groups. Group A and C patients received one session of radial ESWT (rESWT) and sham eESWT per week for 3 consecutive weeks, respectively; Group B patients received a single session of rESWT...
December 2, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27910795/i-did-eat-my-vegetables-agreement-between-parent-and-child-food-intake-diaries
#13
Natalie Rangelov, L Suzanne Suggs, Pedro Marques-Vidal
OBJECTIVE: To assess the level of agreement between children and their parents when reporting a child's food consumption. DESIGN: Cross-sectional study in which children and parents independently completed 7 d food diaries describing the foods and drinks the child consumed at every meal and snack. The association between child and parent reporting was assessed for nineteen food groups using Kendall's tau-b non-parametric correlations, Spearman's rank correlations, kappa coefficients and Lin's concordance measure of agreement...
December 2016: Public Health Nutrition
https://www.readbyqxmd.com/read/27910705/left-right-differences-in-ovarian-volume-and-antral-follicle-count-in-1423-women-of-reproductive-age
#14
Anne-Sofie Korsholm, Helene Westring Hvidman, Janne Gasseholm Bentzen, Anders Nyboe Andersen, Kathrine Birch Petersen
The aim of this cross-sectional study was to investigate side differences in antral follicle count (AFC) and ovarian volume in left versus right ovaries in relation to chronological and "biological" age, the latter estimated by anti-Müllerian hormone (AMH) levels. The cohort comprised 1423 women: 1014 fertile and 409 infertile. All were examined by transvaginal sonography and serum AMH. Overall the right ovary contained 8.1% more antral follicles (p = 0.002) and had 10.7% larger volume compared with the left (p < 0...
December 2, 2016: Gynecological Endocrinology
https://www.readbyqxmd.com/read/27910693/characterization-of-compact-toroid-injection-during-formation-translation-and-field-penetration
#15
T Matsumoto, T Roche, I Allfrey, J Sekiguchi, T Asai, H Gota, M Cordero, E Garate, J Kinley, T Valentine, W Waggoner, M Binderbauer, T Tajima
We have developed a compact toroid (CT) injector system for particle refueling of the advanced beam-driven C-2U field-reversed configuration (FRC) plasma. The CT injector is a magnetized coaxial plasma gun (MCPG), and the produced CT must cross the perpendicular magnetic field surrounding the FRC for the refueling of C-2U. To simulate this environment, an experimental test stand has been constructed. A transverse magnetic field of ∼1 kG is established, which is comparable to the C-2U axial magnetic field in the confinement section, and CTs are fired across it...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910691/compact-ecei-system-with-in-vessel-reflective-optics-for-west
#16
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/27910671/a-high-speed-compact-microwave-interferometer-for-density-fluctuation-measurements-in-sino-united-spherical-tokamak
#17
H Zhong, Y Tan, Y Q Liu, H Q Xie, Z Gao
A single-channel 3 mm interferometer has been developed for plasma density diagnostics in the Sino-UNIted Spherical Tokamak (SUNIST). The extremely compact microwave interferometer utilizes one corrugated feed horn antenna for both emitting and receiving the microwave. The beam path lies on the equatorial plane so the system would not suffer from beam path deflection problems due to the symmetry of the cross section. A focusing lens group and an oblique vacuum window are carefully designed to boost the signal to noise ratio, which allows this system to show good performance even with the small-diameter central column itself as a reflector, without a concave mirror...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910529/development-of-a-beam-ion-velocity-detector-for-the-heavy-ion-beam-probe
#18
P J Fimognari, T P Crowley, D R Demers
In an axisymmetric plasma, the conservation of canonical angular momentum constrains heavy ion beam probe (HIBP) trajectories such that measurement of the toroidal velocity component of secondary ions provides a localized determination of the poloidal flux at the volume where they originated. We have developed a prototype detector which is designed to determine the beam angle in one dimension through the detection of ion current landing on two parallel planes of detecting elements. A set of apertures creates a pattern of ion current on wires in the first plane and solid metal plates behind them; the relative amounts detected by the wires and plates determine the angle which beam ions enter the detector, which is used to infer the toroidal velocity component...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910384/dual-langmuir-probe-array-for-3d-plasma-studies-in-torpex
#19
M Baquero-Ruiz, F Avino, O Chellai, A Fasoli, I Furno, R Jacquier, F Manke, S Patrick
We have designed and installed a new Langmuir-probe (LP) array diagnostic to determine basic three-dimensional (3D) features of plasmas in TORPEX. The diagnostic consists of two identical LP arrays, placed on opposite sides of the apparatus, which provide comprehensive coverage of the poloidal cross section at the two different toroidal locations. Cross correlation studies of signals from the arrays provide a basic way to extract 3D information from the plasmas, as experiments show. Moreover, the remarkable signal-to-noise performance of the front-end electronics allows us to follow a different approach in which we combine information from all probes in both arrays to reconstruct elementary 3D plasma structures at each acquisition time step...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910355/plasma-diagnostics-in-spherical-tokamaks-with-silicon-charged-particle-detectors
#20
A Netepenko, W U Boeglin, D S Darrow, R Ellis, M J Sibilia
Detection of charged fusion products, such as protons and tritons resulting from D(d, p) t reactions, can be used to determine the position and time dependent fusion reaction rate profile in spherical tokamak plasmas with neutral beam heating. We have developed a prototype instrument consisting of 6 ion-implanted-silicon surface barrier detectors combined with collimators in such a way that each detector can accept 3 MeV protons and 1 MeV tritons and thus provides a curved view across the plasma cross section...
November 2016: Review of Scientific Instruments
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