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Effects Of Reading Glasses

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https://www.readbyqxmd.com/read/29223038/polymer-matrix-of-fiber-reinforced-composites-changes-in-the-semi-interpenetrating-polymer-network-during-the-shelf-life
#1
Aftab A Khan, Abdulaziz A Al-Kheraif, Abdullah M Al-Shehri, Eija Säilynoja, Pekka K Vallittu
This laboratory study was aimed to characterize semi-interpenetrating polymer network (semi-IPN) of fiber-reinforced composite (FRC) prepregs that had been stored for up to two years before curing. Resin impregnated prepregs of everStick C&B (StickTech-GC, Turku, Finland) glass FRC were stored at 4°C for various lengths of time, i.e., two-weeks, 6-months and 2-years. Five samples from each time group were prepared with a light initiated free radical polymerization method, which were embedded to its long axis in self-curing acrylic...
November 26, 2017: Journal of the Mechanical Behavior of Biomedical Materials
https://www.readbyqxmd.com/read/29184836/a-comparative-evaluation-of-effect-of-reinforced-autopolymerizing-resin-on-the-flexural-strength-of-repaired-heat-polymerized-denture-base-resin-before-and-after-thermocycling
#2
Virender Kumar, Lalit Kumar, Komal Sehgal, Kusum Datta, Bhupinder Pal
Aims and Objective: Denture fractures are a common problem in clinical practice. Despite the use of different reinforcement materials (metal wires, metal plates, and various types of fibers) for denture repairs, recurrent fractures are still common. The purpose of this study was to compare the maximum flexural loads of the heat-polymerized denture base resin when repaired with autopolymerizing resin reinforced with relatively smaller diameter metal wires and glass fibers, before and after thermocycling...
October 2017: Journal of International Society of Preventive & Community Dentistry
https://www.readbyqxmd.com/read/29148031/small-incision-lenticule-extraction-smile-monovision-for-presbyopia-correction
#3
Nikolaus Luft, Jakob Siedlecki, Walter Sekundo, Christian Wertheimer, Thomas C Kreutzer, Wolfgang J Mayer, Siegfried G Priglinger, Martin Dirisamer
PURPOSE: To evaluate the outcomes of myopic small incision lenticule extraction (SMILE) monovision in presbyopic patients. METHODS: This study included 49 presbyopic patients older than 45 years seeking surgical correction of myopia or myopic astigmatism who underwent bilateral SMILE with planned monovision in the SMILE Eyes Clinic Linz, Austria. Target refraction was plano for dominant (distance) eyes and ranged between -1.25 and -0.50 D for nondominant (near) eyes...
November 4, 2017: European Journal of Ophthalmology
https://www.readbyqxmd.com/read/29049424/diagnostic-accuracy-of-virtual-pathology-vs-traditional-microscopy-in-a-large-dermatopathology-study
#4
Michael N Kent, Thomas G Olsen, Theresa A Feeser, Katherine C Tesno, John C Moad, Michael P Conroy, Mary Jo Kendrick, Sean R Stephenson, Michael R Murchland, Ayesha U Khan, Elizabeth A Peacock, Alexa Brumfiel, Michael A Bottomley
Importance: Digital pathology represents a transformative technology that impacts dermatologists and dermatopathologists from residency to academic and private practice. Two concerns are accuracy of interpretation from whole-slide images (WSI) and effect on workflow. Studies of considerably large series involving single-organ systems are lacking. Objective: To evaluate whether diagnosis from WSI on a digital microscope is inferior to diagnosis of glass slides from traditional microscopy (TM) in a large cohort of dermatopathology cases with attention on image resolution, specifically eosinophils in inflammatory cases and mitotic figures in melanomas, and to measure the workflow efficiency of WSI compared with TM...
October 11, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/28931183/-presbyopia-treatment-solution-by-laser-surgery
#5
Bojan Pajic, Horace Massa, Erika N Eskina
Today there are different options for correcting presbyopia by corneal laser procedure, but all of them have their benefits and compromises. The Monovision is a pseudoaccommodation procedure which works with an anisometropy of up to 2 D. The smaller the anisometropy is the faster a neuroadaptation will be achieved. There could be a decrease of binocularity. The monovision is not well supported by all patients, thus it is important to simulate this correction by contact lenses before surgery. The PresbyLASIK is a corneal multifocal solution for presbyopia correction for emmetropic, myopic and hyperopic eyes...
September 20, 2017: Klinische Monatsblätter Für Augenheilkunde
https://www.readbyqxmd.com/read/28894312/-there-s-no-touching-in-pharmacy-training-pharmacists-for-australia-s-first-pharmacist-immunization-pilot
#6
Esther T L Lau, Michelle E Rochin, Megan DelDot, Beverley D Glass, Lisa M Nissen
BACKGROUND: Vaccination is a safe, efficient, and cost-effective means of preventing, controlling, and eradicating many life-threatening infections and diseases. Globally, the World Health Organization estimates that vaccination saves between 2 million and 3 million lives annually. However, low immunization rates are a significant public health concern. Individual factors, along with the vaccination process and system, have been reported as perceived barriers and challenges to immunization...
July 2017: Canadian Journal of Hospital Pharmacy
https://www.readbyqxmd.com/read/28877052/diagnostic-efficiency-in-digital-pathology-a-comparison-of-optical-versus-digital-assessment-in-510-surgical-pathology-cases
#7
COMPARATIVE STUDY
Anne M Mills, Sarah E Gradecki, Bethany J Horton, Rebecca Blackwell, Christopher A Moskaluk, James W Mandell, Stacey E Mills, Helen P Cathro
Prior work has shown that digital images and microscopic slides can be interpreted with comparable diagnostic accuracy. Although accuracy has been well-validated, the interpretative time for digital images has scarcely been studied and concerns about efficiency remain a major barrier to adoption. We investigated the efficiency of digital pathology when compared with glass slide interpretation in the diagnosis of surgical pathology biopsy and resection specimens. Slides were pulled from 510 surgical pathology cases from 5 organ systems (gastrointestinal, gynecologic, liver, bladder, and brain)...
January 2018: American Journal of Surgical Pathology
https://www.readbyqxmd.com/read/28599035/rapid-vision-correction-by-special-operations-forces
#8
Mark E Reynolds
BACKGROUND: This report describes a rapid method of vision correction used by Special Operations Medics in multiple operational engagements. METHODS: Between 2011 and 2015, Special Operations Medics used an algorithm- driven refraction technique. A standard block of instruction was provided to the medics, along with a packaged kit. The technique was used in multiple operational engagements with host nation military and civilians. Data collected for program evaluation were later analyzed to assess the utility of the technique...
December 0: Journal of Special Operations Medicine: a Peer Reviewed Journal for SOF Medical Professionals
https://www.readbyqxmd.com/read/28448807/alternative-sweeteners-influence-the-biomass-of-oral-biofilm
#9
Fathilah Abdul Razak, Baizatul Amirah Baharuddin, Elisya Farha Mohd Akbar, Amira Hanim Norizan, Nur Fazilah Ibrahim, Md Yusoff Musa
OBJECTIVE: Compact-structured oral biofilm accumulates acids that upon prolonged exposure to tooth surface, causes demineralisation of enamel. This study aimed to assess the effect of alternative sweeteners Equal Stevia(®), Tropicana Slim(®), Pal Sweet(®) and xylitol on the matrix-forming activity of plaque biofilm at both the early and established stages of formation. METHODS: Saliva-coated glass beads (sGB) were used as substratum for the adhesion of a mixed-bacterial suspension of Streptococcus mutans, Streptococcus sanguinis and Streptococcus mitis...
August 2017: Archives of Oral Biology
https://www.readbyqxmd.com/read/28446019/fusion-bead-procedure-for-nuclear-forensics-employing-synthetic-enstatite-to-dissolve-uraniferous-and-other-challenging-materials-prior-to-laser-ablation-inductively-coupled-plasma-mass-spectrometry
#10
David G Reading, Ian W Croudace, Phillip E Warwick
There is an increasing demand for rapid and effective analytical tools to support nuclear forensic investigations of seized or suspect materials. Some methods are simply adapted from other scientific disciplines and can effectively be used to rapidly prepare complex materials for subsequent analysis. A novel sample fusion method is developed, tested, and validated to produce homogeneous, flux-free glass beads of geochemical reference materials (GRMs), uranium ores, and uranium ore concentrates (UOC) prior to the analysis of 14 rare earth elements (REE) via laser ablation inductively coupled plasma mass spectrometry (LA-ICP-MS)...
June 6, 2017: Analytical Chemistry
https://www.readbyqxmd.com/read/28392813/effect-of-accelerated-aging-on-color-change-of-direct-and-indirect-fiber-reinforced-composite-restorations
#11
Masoumeh Hasani Tabatabaei, Farnaz Farahat, Elham Ahmadi, Zahra Hassani
OBJECTIVES: The aim of this study was to assess the effect of artificial accelerated aging (AAA) on color change of direct and indirect fiber-reinforced composite (FRC) restorations. MATERIALS AND METHODS: Direct (Z250) and indirect (Gradia) composite resins were reinforced with glass (GF) and polyethylene fibers (PF) based on the manufacturers' instructions. Forty samples were fabricated and divided into eight groups (n=5). Four groups served as experimental groups and the remaining four served as controls...
June 2016: Journal of Dentistry of Tehran University of Medical Sciences
https://www.readbyqxmd.com/read/28386574/quantitative-electroencephalograms-and-neuro-optometry-a-case-study-that-explores-changes-in-electrophysiology-while-wearing-therapeutic-eyeglasses
#12
Deborah Zelinsky, Corey Feinberg
The brain is equipped with a complex system for processing sensory information, including retinal circuitry comprising part of the central nervous system. Retinal stimulation can influence brain function via customized eyeglasses at both subcortical and cortical levels. We investigated cortical effects from wearing therapeutic eyeglasses, hypothesizing that they can create measureable changes in electroencephalogram (EEG) tracings. A Z-Bell(SM) test was performed on a participant to select optimal lenses. An EEG measurement was recorded before and after the participant wore the eyeglasses...
January 2017: Neurophotonics
https://www.readbyqxmd.com/read/28378561/comparison-of-objective-and-subjective-changes-induced-by-multiple-pinhole-glasses-and-single-pinhole-glasses
#13
COMPARATIVE STUDY
Won Soo Kim, In Ki Park, Young Kee Park, Yeoun Sook Chun
Multiple-pinhole (MPH) glasses are currently sold in many countries with unproven advertisements; however, their objective and subjective effects have not been investigated. Therefore, to investigate the effects of MPH glasses excluding the single-pinhole (SPH) effect, we compared the visual functional changes, reading speed, and ocular discomfort after reading caused by MPH and SPH glasses. Healthy 36 participants with a mean age of 33.1 years underwent examinations of pupil size, visual acuity (VA), depth of focus (DOF), and near point accommodation (NPA); tests for visual field (VF), contrast sensitivity (CS), stereopsis, and reading speed; and a survey of ocular discomfort after reading...
May 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/28340498/academic-difficulties-in-children-with-prenatal-alcohol-exposure-presence-profile-and-neural-correlates
#14
Leila Glass, Eileen M Moore, Natacha Akshoomoff, Kenneth Lyons Jones, Edward P Riley, Sarah N Mattson
BACKGROUND: Academic achievement was evaluated in children with heavy prenatal alcohol exposure to determine potential strengths and weaknesses, evaluate the utility of different definitions for identifying low academic performance, and explore the neural correlates that may underlie academic performance. METHODS: Children (8 to 16 years) were assessed using the WIAT-II. Patterns of performance were examined in 2 subject groups: children with heavy prenatal alcohol exposure (n = 67) and controls (n = 61)...
May 2017: Alcoholism, Clinical and Experimental Research
https://www.readbyqxmd.com/read/28337792/overestimation-of-stereo-thresholds-by-the-tno-stereotest-is-not-due-to-global-stereopsis
#15
Kathleen Vancleef, Jenny C A Read, William Herbert, Nicola Goodship, Maeve Woodhouse, Ignacio Serrano-Pedraza
PURPOSE: It has been repeatedly shown that the TNO stereotest overestimates stereo threshold compared to other clinical stereotests. In the current study, we test whether this overestimation can be attributed to a distinction between 'global' (or 'cyclopean') and 'local' (feature or contour-based) stereopsis. METHODS: We compared stereo thresholds of a global (TNO) and a local clinical stereotest (Randot Circles). In addition, a global and a local psychophysical stereotest were added to the design...
July 2017: Ophthalmic & Physiological Optics: the Journal of the British College of Ophthalmic Opticians (Optometrists)
https://www.readbyqxmd.com/read/28281254/gold-nanorod-array-biochip-for-label-free-multiplexed-biological-detection
#16
Zhong Mei, Yanyan Wang, Liang Tang
Gold nanorod (GNR) based label-free sensing has been attractive due to its unique property of localized surface plasmon resonance (LSPR). Compared to bulk gold, the SPR of GNRs is more sensitive to the refractive index change caused by biological binding in the close proximity. Numerous studies have reported biological detection in solution based GNR probes. However, the biosensing has the intrinsic problems of fluctuating readings and short storage time due to nanoparticle aggregation. In contrast, a chip-based nanorod biosensor is a more robust and reliable platform...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28245603/testing-of-piezo-actuated-glass-micro-membranes-by-optical-low-coherence-reflectometry
#17
Sabina Merlo, Paolo Poma, Eleonora Crisà, Dino Faralli, Marco Soldo
In this work, we have applied optical low-coherence reflectometry (OLCR), implemented with infra-red light propagating in fiberoptic paths, to perform static and dynamic analyses on piezo-actuated glass micro-membranes. The actuator was fabricated by means of thin-film piezoelectric MEMS technology and was employed for modifying the micro-membrane curvature, in view of its application in micro-optic devices, such as variable focus micro-lenses. We are here showing that OLCR incorporating a near-infrared superluminescent light emitting diode as the read-out source is suitable for measuring various parameters such as the micro-membrane optical path-length, the membrane displacement as a function of the applied voltage (yielding the piezo-actuator hysteresis) as well as the resonance curve of the fundamental vibration mode...
February 25, 2017: Sensors
https://www.readbyqxmd.com/read/28150489/increasing-binding-efficiency-via-reporter-shape-and-flux-in-a-viral-nanoparticle-lateral-flow-assay
#18
Jinsu Kim, Binh Vu, Katerina Kourentzi, Richard C Willson, Jacinta C Conrad
To identify factors controlling the performance of reporter particles in a sensitive lateral-flow assay (LFA), we investigated the effect of the flux and shape of filamentous bacteriophage (phage) on the performance of phage LFAs. Phage of three different lengths and diameters were modified with biotin and AlexaFluor 555 as binding and read-out elements, respectively. The binding efficiencies of the functionalized phage were tested in a fibrous glass LFA membrane modified with avidin. The total binding rate, quantified using real-time particle counting and particle image velocimetry, decreased monotonically with the average bulk flux of phage through the membrane...
March 1, 2017: ACS Applied Materials & Interfaces
https://www.readbyqxmd.com/read/28047216/su-f-t-329-characteristic-study-of-a-rado-photoluminescenct-glass-dosimeter-with-accumulated-dose
#19
D Kim, M Yoon, W Chung, M Chung
PURPOSE: This study investigated the effect of accumulated dose on radiophotoluminescent glass dosimeter in megavoltage photon. METHODS: 45 commercially-available radio-photoluminescence glass dosimeters (RPLGD; GD-302M, Asahi Techno Glass Co., Shizuoka, JAPAN) were irradiated to 10 × 10 cm(2) open-field with 6, 10 and 15 MV photon beams at 100 cm of source to surface distance and dose maximum depths. Each energy has consists of five groups which is consists of three detectors...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28029555/speech-adjustments-for-room-acoustics-and-their-effects-on-vocal-effort
#20
Pasquale Bottalico
OBJECTIVES: The aims of the present study are (1) to analyze the effects of the acoustical environment and the voice style on time dose (Dt_p) and fundamental frequency (mean f0 and standard deviation std_f0) while taking into account the effect of short-term vocal fatigue and (2) to predict the self-reported vocal effort from the voice acoustical parameters. METHODS: Ten male and ten female subjects were recorded while reading a text in normal and loud styles, in three rooms-anechoic, semi-reverberant, and reverberant-with and without acrylic glass panels 0...
May 2017: Journal of Voice: Official Journal of the Voice Foundation
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