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https://www.readbyqxmd.com/read/27914838/lacrimal-gland-involvement-in-blepharophimosis-ptosis-epicanthus-inversus-syndrome
#1
Ana Filipa Duarte, Patricia M S Akaishi, Greice A de Molfetta, Salomão Chodraui-Filho, Murilo Cintra, Alcina Toscano, Wilson Araujo Silva, Antonio A V Cruz
PURPOSE: To describe the involvement of the lacrimal gland (LG) in blepharophimosis-ptosis-epicanthus inversus syndrome (BPES). DESIGN: Observational, cross-sectional study. PARTICIPANTS: Twenty-one patients with BPES (10 female, 11 male) aged on average 15 years (range, 2-39 years), from 3 Brazilian medical centers and 1 Portuguese medical center. METHODS: Patients had their ocular surface evaluated with slit-lamp biomicroscopy, and tear production quantified with the Schirmer test I...
November 30, 2016: Ophthalmology
https://www.readbyqxmd.com/read/27914144/outdoor-air-pollution-and-pterygium-in-korea
#2
Ki Woong Lee, Yoon Hyeong Choi, Sung Ha Hwang, Hae Jung Paik, Mee Kum Kim, Won Ryang Wee, Dong Hyun Kim
We investigated relationships between outdoor air pollution and pterygium in Korean adults. This study includes 23,276 adults in population-based cross-sectional data using the Korea National Health and Nutrition Examination Survey 2008-2011. Pterygium was assessed using slit lamp biomicroscopy. Air pollution data (humidity, particulate matter with aerodynamic diameter less than 10 μm [PM₁₀], ozone [O₃], nitrogen dioxide [NO₂], and sulfur dioxide levels [SO₂]) for 2 years preceding the ocular examinations were acquired...
January 2017: Journal of Korean Medical Science
https://www.readbyqxmd.com/read/27912186/recycling-oriented-comparison-of-mercury-distribution-in-new-and-spent-fluorescent-lamps-and-their-potential-risk
#3
Julia Hobohm, Oliver Krüger, Srotoswini Basu, Kerstin Kuchta, Sebastian van Wasen, Christian Adam
This study compares the mercury distribution in the vapor phase, the phosphor powder and the glass matrix of new and spent fluorescent lamps. The spent fluorescent lamps were obtained at the collection yards of a public waste management company in Hamburg, Germany. An innovative systematic sampling method is utilized to collect six spent and eight corresponding new, off-the-shelf fluorescent lamp samples. The efficiency of several acid digestion methods for the determination of the elemental composition was studied and elemental mass fractions of K, Na, Y, Ca, Ba, Eu, Al, Pb, Mg, Hg, and P were measured...
November 29, 2016: Chemosphere
https://www.readbyqxmd.com/read/27911106/time-course-of-conjunctival-hyperemia-induced-by-a-rho-kinase-inhibitor-anti-glaucoma-eye-drop-ripasudil-0-4
#4
Etsuko Terao, Shunsuke Nakakura, Yasuko Fujisawa, Yuki Fujio, Kanae Matsuya, Yui Kobayashi, Hitoshi Tabuchi, Tsuyoshi Yoneda, Atsuki Fukushima, Yoshiaki Kiuchi
PURPOSE: We investigated the detailed time course of conjunctival hyperemia induced by ripasudil 0.4%, a novel Rho-kinase inhibitor anti-glaucoma eye drop, in healthy subjects. METHODS: We recruited 51 healthy subjects and administered ripasudil 0.4% in their right eye. We evaluated conjunctival hyperemia using slit lamp photography and measured the intraocular pressure (IOP) using the Icare PRO Rebound Tonometer at baseline and after 5, 15, 30, 60, 90, and 120 min...
December 2, 2016: Current Eye Research
https://www.readbyqxmd.com/read/27910676/in-situ-wavelength-calibration-of-the-edge-cxs-spectrometers-on-jet
#5
E Delabie, N Hawkes, T M Biewer, M G O'Mullane
A method for obtaining an accurate wavelength calibration over the entire focal plane of the JET edge CXS spectrometers is presented that uses a combination of the fringe pattern created with a Fabry-Pérot etalon and a neon lamp for cross calibration. The accuracy achieved is 0.03 Å, which is the same range of uncertainty as when neglecting population effects on the rest wavelength of the CX line. For the edge CXS diagnostic, this corresponds to a flow velocity of 4.5 km/s in the toroidal direction or 1.9 km/s in the poloidal direction...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910649/upgrades-to-improve-the-usability-reliability-and-spectral-range-of-the-mst-thomson-scattering-diagnostic
#6
S Z Kubala, M T Borchardt, D J Den Hartog, D J Holly, C M Jacobson, L A Morton, W C Young
The Thomson scattering diagnostic on MST records both equilibrium and fluctuating electron temperature with a range capability of 10 eV-5 keV. Standard operation with two modified commercial Nd:YAG lasers allows measurements at rates of 1 kHz-25 kHz. Several subsystems of the diagnostic are being improved. The power supplies for the avalanche photodiode detectors (APDs) that record the scattered light are being replaced to improve usability, reliability, and maintainability. Each of the 144 APDs will have an individual rack mounted switching supply, with bias voltage adjustable to match the APD...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910523/first-measurement-of-the-edge-charge-exchange-recombination-spectroscopy-on-east-tokamak
#7
Y Y Li, X H Yin, J Fu, D Jiang, S Y Feng, B Lyu, Y J Shi, Y Yi, X J Zhou, C D Hu, M Y Ye, B N Wan
An edge toroidal charge exchange recombination spectroscopy (eCXRS) diagnostic, based on a heating neutral beam injection (NBI), has been deployed recently on the Experimental Advanced Superconducting Tokamak (EAST). The eCXRS, which aims to measure the plasma ion temperature and toroidal rotation velocity in the edge region simultaneously, is a complement to the exiting core CXRS (cCXRS). Two rows with 32 fiber channels each cover a radial range from ∼2.15 m to ∼2.32 m with a high spatial resolution of ∼5-7 mm...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910410/absolute-calibration-of-the-omega-streaked-optical-pyrometer-for-temperature-measurements-of-compressed-materials
#8
M C Gregor, R Boni, A Sorce, J Kendrick, C A McCoy, D N Polsin, T R Boehly, P M Celliers, G W Collins, D E Fratanduono, J H Eggert, M Millot
Experiments in high-energy-density physics often use optical pyrometry to determine temperatures of dynamically compressed materials. In combination with simultaneous shock-velocity and optical-reflectivity measurements using velocity interferometry, these experiments provide accurate equation-of-state data at extreme pressures (P > 1 Mbar) and temperatures (T > 0.5 eV). This paper reports on the absolute calibration of the streaked optical pyrometer (SOP) at the Omega Laser Facility. The wavelength-dependent system response was determined by measuring the optical emission from a National Institute of Standards and Technology-traceable tungsten-filament lamp through various narrowband (40-nm-wide) filters...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910398/development-of-beam-emission-spectroscopy-for-turbulence-transport-study-in-heliotron-j
#9
S Kobayashi, S Ohshima, H Matsuda, X X Lu, D Kokubu, K Ida, T Kobayashi, M Yoshinuma, S Kado, T Oishi, K Nagasaki, H Okada, T Minami, S Yamamoto, Y Nakamura, A Ishizawa, N Kenmochi, Y Otani, S Konoshima, T Mizuuchi
This paper describes the development study of the beam emission spectroscopy (BES) for the turbulent transport study in Heliotron J. Modification of the sightlines (10 × 4 for edge and 10 × 2 for edge) enables us to obtain 2-dimensional BES imaging. The cooling effect on the reduction in the electrical noise of avalanche photodiode (APD) assembly has been investigated using a refrigerant cooling system. When the temperature of the APD element has set to be -20 °C, the electrical noise can be reduced more than 50%...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27910359/absolute-wavelength-calibration-of-a-doppler-spectrometer-with-a-custom-fabry-perot-optical-system
#10
M M Baltzer, D Craig, D J Den Hartog, T Nishizawa, M D Nornberg
An Ion Doppler Spectrometer (IDS) is used for fast measurements of C VI line emission (343.4 nm) in the Madison Symmetric Torus. Absolutely calibrated flow measurements are difficult because the IDS records data within 0.25 nm of the line. Commercial calibration lamps do not produce lines in this narrow range. A light source using an ultraviolet LED and etalon was designed to provide a fiducial marker 0.08 nm wide. The light is coupled into the IDS at f/4, and a holographic diffuser increases homogeneity of the final image...
November 2016: Review of Scientific Instruments
https://www.readbyqxmd.com/read/27906783/evaluation-of-the-potential-optical-radiation-hazards-with-led-lamps-intended-for-home-use
#11
Robert H James, Robert J Landry, Bennett N Walker, Ilko K Ilev
The authors evaluated the potential for ocular damage from optical radiation emitted by Light Emitting Diode (LED) based lamps used for general illumination. Ten LED lamps were randomly selected off the shelf from a local home improvement store. The LEDs were behind diffusers in half of these lamps, while in the other half, the LEDs were clearly visible. In addition, a battery powered LED lantern having a LED source behind a diffuser was measured. The optical radiation emissions from two common incandescent lamps were also measured to compare the relative hazards of LED and incandescent lamps...
January 2017: Health Physics
https://www.readbyqxmd.com/read/27906100/an-isothermal-dna-amplification-method-for-detection-of-onchocerca-volvulus-infection-in-skin-biopsies
#12
Ole Lagatie, Michelle Merino, Linda Batsa Debrah, Alexander Y Debrah, Lieven J Stuyver
BACKGROUND: Diagnostic procedures for the diagnosis of infection with the nematode parasite Onchocerca volvulus are currently based on the microscopic detection of microfilariae in skin biopsies. Alternative approaches based on amplification of parasitic DNA in these skin biopsies are currently being explored. Mostly this is based on the detection of the O-150 repeat sequence using PCR based techniques. METHODS: An isothermal, loop-mediated amplification method has been designed using the mitochondrial O...
December 1, 2016: Parasites & Vectors
https://www.readbyqxmd.com/read/27905552/protonation-enhancement-by-dichloromethane-doping-in-low-pressure-photoionization
#13
Jinian Shu, Yao Zou, Ce Xu, Zhen Li, Wanqi Sun, Bo Yang, Haixu Zhang, Peng Zhang, Pengkun Ma
Doping has been used to enhance the ionization efficiency of analytes in atmospheric pressure photoionization, which is based on charge exchange. Compounds with excellent ionization efficiencies are usually chosen as dopants. In this paper, we report a new phenomenon observed in low-pressure photoionization: Protonation enhancement by dichloromethane (CH2Cl2) doping. CH2Cl2 is not a common dopant due to its high ionization energy (11.33 eV). The low-pressure photoionization source was built using a krypton VUV lamp that emits photons with energies of 10...
December 1, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27902721/facial-indicators-of-positive-emotions-in-rats
#14
Kathryn Finlayson, Jessica Frances Lampe, Sara Hintze, Hanno Würbel, Luca Melotti
Until recently, research in animal welfare science has mainly focused on negative experiences like pain and suffering, often neglecting the importance of assessing and promoting positive experiences. In rodents, specific facial expressions have been found to occur in situations thought to induce negatively valenced emotional states (e.g., pain, aggression and fear), but none have yet been identified for positive states. Thus, this study aimed to investigate if facial expressions indicative of positive emotional state are exhibited in rats...
2016: PloS One
https://www.readbyqxmd.com/read/27900962/association-of-conjunctival-and-corneal-calcification-with-vascular-calcification-among-hepatitis-c-seropositive-hemodialysis-patients
#15
Khaled AbouSeif, Dawlat Sany, Yasser Elshahawy, Ayman Seddik, Khedr Rahman, Moustapha Gaber
Disorders associated with the hepatitis C virus (HCV) have been reported including cardiovascular, metabolic, and central nervous system diseases. Since chronic HCV infections may be curable, their identification as causal contributors to cardiovascular risk could offer new perspectives in the prevention of cardiovascular disease. The aim of this study is to investigate the association between HCV and aortic arch calcification (AAC) and corneal and conjunctival calcification (CCC) in maintenance hemodialysis (MHD) patients; further, we assessed the correlation of CCC with vascular calcification...
November 2016: Saudi Journal of Kidney Diseases and Transplantation
https://www.readbyqxmd.com/read/27899288/one-step-reverse-transcription-loop-mediated-isothermal-amplification-for-the-detection-of-maize-chlorotic-mottle-virus-in-maize
#16
Ling Chen, Zhiyuan Jiao, Dongmei Liu, Xingliang Liu, Zihao Xia, Congliang Deng, Tao Zhou, Zaifeng Fan
Maize chlorotic mottle virus (MCMV) is spreading in many regions worldwide, causing maize lethal necrosis when co-infected with a potyvirid. In this study, one-step reverse transcription loop-mediated isothermal amplification (RT-LAMP) assay was developed to detect MCMV in maize. A set of four specific primers was designed based on the conserved coat protein gene sequences of MCMV. The RT-LAMP could be completed within 60min under isothermal condition at 63°C. The sensitivity test showed that the RT-LAMP was about 10-fold more sensitive than RT-PCR and no cross-reactivity was detected with other viral pathogens infecting maize in China...
November 26, 2016: Journal of Virological Methods
https://www.readbyqxmd.com/read/27898985/a-novel-congenital-cataract-category-system-based-on-lens-opacity-locations-and-relevant-anterior-segment-characteristics
#17
Haotian Lin, Duoru Lin, Zhenzhen Liu, Erping Long, Xiaohang Wu, Qianzhong Cao, Jingjing Chen, Zhuoling Lin, Xiaoyan Li, Li Zhang, Hui Chen, Xiayin Zhang, Jing Li, Weirong Chen, Yizhi Liu
Purpose: We compared the anterior segment characteristics of congenital cataract (CC) patients with lens opacities in different locations and proposed a modified, simple CC category system. Methods: Cataractous eyes of CC patients were classified into four groups based on the locations of lens opacities shown in slit-lamp examinations and by a 3-dimensional anterior segment imaging system as follows: total, anterior, interior, and posterior cataracts. The mean keratometry value, corneal astigmatism (CA), central corneal thickness (CCT), and anterior chamber depth (ACD) of eyes in different groups were compared...
November 1, 2016: Investigative Ophthalmology & Visual Science
https://www.readbyqxmd.com/read/27898256/comparative-study-of-the-physiotherapeutic-and-drug-protocol-and-low-level-laser-irradiation-in-the-treatment-of-pain-associated-with-temporomandibular-dysfunction
#18
Marcos Fernando Xisto Braga Cavalcanti, Uoston Holder Silva, Ernesto Cesar Pinto Leal-Junior, Rodrigo A B Lopes-Martins, Rodrigo Labat Marcos, Rodney Capp Pallotta, Francesca Diomede, Oriana Trubiani, Natalia De Isla, Lucio Frigo
BACKGROUND: The temporomandibular joint (TMJ) is a structure of the craniofacial complex affected by neurological diseases. Orthopedic and musculoskeletal changes can also cause temporomandibular disorders (TMD) and pain. Low-level laser (LLL) therapy has been studied in the treatment of temporomandibular jaw (TMJ) dysfunction, and controversial results were obtained. OBJECTIVE: The objective of this work was comparing the physiotherapeutic and drug protocol (PDP) to LLL therapy in the treatment of pain associated with TMD...
November 29, 2016: Photomedicine and Laser Surgery
https://www.readbyqxmd.com/read/27896783/post-clear-corneal-phacoemulsification-endophthalmitis-profile-and-management-outcomes-at-a-tertiary-eye-care-center-in-western-india
#19
Aditya S Kelkar, Jai A Kelkar, Prajakta M Barve, Aishwarya Mulay, Shubhangi Sharma, Winfried Amoaku
BACKGROUND: Infectious endophthalmitis is a serious sight threatening intraocular inflammation that results from exogenous or endogenous spread of organisms into the eye.A retrospective case series to study the profile of endophthalmitis following clear corneal phacoemulsification in western India between years 2008 and 2014 was held in the National Institute of Ophthalmology, Pune, India. Cases of endophthalmitis post-clear corneal phacoemulsification were reviewed pertaining to demography, clinical history, surgeon experience, surgical complications, time of onset following surgery, duration between onset of symptoms and presentation to the center, presenting visual acuity and at follow-ups, slit-lamp examination and ultrasound findings, vitreous tap culture results, treatment, and final functional and anatomical outcomes...
December 2016: Journal of Ophthalmic Inflammation and Infection
https://www.readbyqxmd.com/read/27896446/biocompatible-silver-nanoparticles-prepared-with-amino-acids-and-a-green-method
#20
Ricardo Almeida de Matos, Lilia Coronato Courrol
The synthesis of nanoparticles is usually carried out by chemical reduction, which is effective but uses many toxic substances, making the process potentially harmful to the environment. Hence, as part of the search for environmentally friendly or green synthetic methods, this study aimed to produce silver nanoparticles (AgNPs) using only AgNO3, Milli-Q water, white light from a xenon lamp (Xe) and amino acids. Nanoparticles were synthetized using 21 amino acids, and the shapes and sizes of the resultant nanoparticles were evaluated...
November 28, 2016: Amino Acids
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