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https://www.readbyqxmd.com/read/29155715/indoor-experimental-assessment-of-the-efficiency-and-irradiance-spot-of-the-achromatic-doublet-on-glass-adg-fresnel-lens-for-concentrating-photovoltaics
#1
Guido Vallerotto, Marta Victoria, Stephen Askins, Ignacio Antón, Gabriel Sala, Rebeca Herrero, César Domínguez
We present a method to characterize achromatic Fresnel lenses for photovoltaic applications. The achromatic doublet on glass (ADG) Fresnel lens is composed of two materials, a plastic and an elastomer, whose dispersion characteristics (refractive index variation with wavelength) are different. We first designed the lens geometry and then used ray-tracing simulation, based on the Monte Carlo method, to analyze its performance from the point of view of both optical efficiency and the maximum attainable concentration...
October 27, 2017: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29154643/gender-nonconformity-of-identical-twins-with-discordant-sexual-orientations-evidence-from-childhood-photographs
#2
Tuesday M Watts, Luke Holmes, Jamie Raines, Sheina Orbell, Gerulf Rieger
Childhood gender nonconformity (femininity in males, masculinity in females) predicts a nonstraight (gay, lesbian, or bisexual) sexual orientation in adulthood. In previous work, nonstraight twins reported more childhood gender nonconformity than their genetically identical, but straight, cotwins. However, self-reports could be biased. We therefore assessed gender nonconformity via ratings of photographs from childhood and adulthood. These ratings came from independent observers naïve to study hypotheses. Identical twins with discordant sexual orientations (24 male pairs, 32 female pairs) visibly differed in their gender nonconformity from mid-childhood, with higher levels of gender nonconformity observed in the nonstraight twins...
November 20, 2017: Developmental Psychology
https://www.readbyqxmd.com/read/29154035/mapping-language-to-visual-referents-does-the-degree-of-image-realism-matter
#3
Raheleh Saryazdi, Craig G Chambers
Studies of real-time spoken language comprehension have shown that listeners rapidly map unfolding speech to available referents in the immediate visual environment. This has been explored using various kinds of 2-dimensional (2D) stimuli, with convenience or availability typically motivating the choice of a particular image type. However, work in other areas has suggested that certain cognitive processes are sensitive to the level of realism in 2D representations. The present study examined the process of mapping language to depictions of objects that are more or less realistic, namely photographs versus clipart images...
November 15, 2017: Acta Psychologica
https://www.readbyqxmd.com/read/29153745/analysis-of-the-golden-proportion-and-width-height-ratios-of-maxillary-anterior-teeth-in-arab-and-kurdish-populations
#4
Neda Al-Kaisy, Balkees Taha Garib
STATEMENT OF PROBLEM: Dentists providing anterior restorations are guided by the principles of anatomic tooth dimension. Dental biometrics should consider ethnicity to produce a more comprehensive evaluation. PURPOSE: The purpose of this clinical study was to analyze the anatomic crowns of maxillary central incisors (CI), lateral incisors (LI), and canines (C) with respect to the golden proportion (GP) and width/height (W/H) ratio in Kurdish and Arab populations...
November 15, 2017: Journal of Prosthetic Dentistry
https://www.readbyqxmd.com/read/29153456/association-of-mortality-with-ocular-diseases-and-visual-impairment-in-the-age-related-eye-disease-study-2-age-related-eye-disease-study-2-report-number-13
#5
Chandana Papudesu, Traci E Clemons, Elvira Agrón, Emily Y Chew
PURPOSE: To evaluate the association of mortality with visual acuity (VA) impairment, age-related macular degeneration (AMD), and cataract surgery. DESIGN: Cohort study. PARTICIPANTS: Participants with at least intermediate AMD enrolled in a randomized controlled clinical trial of lutein/zeaxanthin and/or omega-3 fatty acids, the Age-Related Eye Disease Study 2 (AREDS2), for treatment of AMD and cataract. METHODS: Baseline and annual eye examinations included best-corrected visual acuity (BCVA) assessments, slit-lamp examinations, and stereoscopic fundus photographs that were centrally graded for development of late AMD (central geographic atrophy or neovascular AMD) or pseudophakia...
November 16, 2017: Ophthalmology
https://www.readbyqxmd.com/read/29152816/body-image-dissatisfaction-in-patients-undergoing-breast-reconstruction-examining-the-roles-of-breast-symmetry-and-appearance-investment
#6
Irene Teo, Gregory P Reece, Sheng-Cheng Huang, Kanika Mahajan, J Andon, Pujjal Khanal, Clement Sun, Krista Nicklaus, Fatima Merchant, Mia K Markey, Michelle Cororve Fingeret
OBJECTIVE: Reconstruction as part of treatment for breast cancer is aimed at mitigating body image concerns post-mastectomy. Although algorithms have been developed to objectively assess breast reconstruction outcomes, associations between objectively quantified breast aesthetic appearance and patient-reported body image outcomes have not been examined. Further, the role of appearance investment in explaining a patient's body image is not well understood. We investigated the extent to which objectively quantified breast symmetry and patient-reported appearance investment were associated with body image dissatisfaction in patients undergoing cancer-related breast reconstruction...
November 19, 2017: Psycho-oncology
https://www.readbyqxmd.com/read/29150217/idiopathic-macular-telangiectasia-type-2-prevalence-and-a-morphometric-and-phenotypic-study
#7
R M Bayón-Porras, I Pascual-Camps, C Plaza-Laguardia, R Gallego-Pinazo
OBJECTIVE: Type 2 idiopathic macular telangiectasia (MacTel2) is a rare retinal disease that has still not been well-defined. The aim of the present manuscript is to describe the clinical features by multimodal retinal imaging, to present the functional characteristics, and to estimate the prevalence of the disease. METHODS: A retrospective study was conducted on the 12 eyes of 6 patients with MacTel2. Fundus colour photographs, fundus autofluorescence, fluorescein angiography, optical coherence tomography (OCT), and OCT-angiography were performed and subsequently analysed...
November 14, 2017: Archivos de la Sociedad Española de Oftalmología
https://www.readbyqxmd.com/read/29149712/detection-of-perfluoroalkyl-acids-and-sulphonates-in-italian-eel-samples-by-hplc-hrms-orbitrap
#8
Luca Maria Chiesa, Maria Nobile, Elisa Pasquale, Claudia Balzaretti, Petra Cagnardi, Doriana Tedesco, Sara Panseri, Francesco Arioli
Perfluoroalkyl substances (PFASs) contain one or more carbon-bound hydrogens substituted by fluorine. Since the 1950s, these compounds have been used to manufacture fat- and water-resistant fabrics, paper and food containers, and to produce photographic films, firefighting foams, detergents and insecticides. The widespread use and global distribution of PFASs, have led to their accumulation in the environment. Food, particularly fish and other seafood, is considered the main route of human exposure to PFASs...
October 27, 2017: Chemosphere
https://www.readbyqxmd.com/read/29148003/prevalence-of-medical-adhesive-related-skin-injury-at-peripherally-inserted-central-catheter-insertion-site-in-oncology-patients
#9
Huihan Zhao, Yu He, Huiqiao Huang, Ying Ling, Xuemei Zhou, Qin Wei, Yonghong Lei, Yanping Ying
INTRODUCTION: The aim of our study was to identify the prevalence and risk factors of medical adhesive-related skin injuries (MARSI) at peripherally inserted central catheters (PICC) insertion site in oncology patients. METHODS: A cross-sectional observational study lasting two weeks was carried out in four inpatient departments. Skin assessment data and photographs of skin were collected during PICC maintenance. Other related information came from medical records...
November 8, 2017: Journal of Vascular Access
https://www.readbyqxmd.com/read/29146756/prevalence-and-factors-associated-with-age-related-macular-degeneration-in-a-southwestern-island-population-of-japan-the-kumejima-study
#10
Ryo Obata, Yasuo Yanagi, Tatsuya Inoue, Miho Yasuda, Yuji Oshima, Shoichi Sawaguchi, Aiko Iwase, Makoto Araie
AIMS: To evaluate the prevalence of and factors associated with age-related macular degeneration (AMD) in a rural population of southwestern Japan. METHODS: This population-based cross-sectional study of all residents aged 40 years or older was conducted on the island of Kumejima, Okinawa, Japan. Of 4632 eligible residents, 3762 completed a comprehensive questionnaire and underwent ocular examination (participant rate, 81.2%). A non-mydriatic fundus photograph was used to grade AMD lesions according to the Wisconsin protocol...
November 16, 2017: British Journal of Ophthalmology
https://www.readbyqxmd.com/read/29145583/association-between-the-severity-of-diabetic-retinopathy-and-falls-in-an-asian-population-with-diabetes-the-singapore-epidemiology-of-eye-diseases-study
#11
Preeti Gupta, Amudha Aravindhan, Alfred T L Gan, Ryan E K Man, Eva K Fenwick, Paul Mitchell, Nicholas Tan, Charumathi Sabanayagam, Tien Yin Wong, Ching-Yu Cheng, Ecosse L Lamoureux
Importance: The presence and severity of diabetic retinopathy (DR) may contribute to the risk of falling in persons with diabetes, but evidence is currently equivocal. Objective: To investigate the associations of diabetes and DR severity with the likelihood of falls in a multiethnic Asian population. Design, Setting, and Participants: Cross-sectional post hoc analysis of the Singapore Epidemiology of Eye Diseases study, a population-based study of participants from 3 ethnic groups (3280 Malay, 3400 Indian, and 3353 Chinese individuals) conducted from 2004 to 2011...
November 16, 2017: JAMA Ophthalmology
https://www.readbyqxmd.com/read/29143715/scar-satisfaction-and-body-image-in-thyroidectomy-patients-prospective-study-in-a-tertiary-referral-centre
#12
P Sethukumar, D Ly, Z Awad, N S Tolley
BACKGROUND: This study is the first to evaluate scar satisfaction and body image in thyroidectomy patients using validated assessment tools. METHODS: A total of 123 thyroidectomy patients were recruited over 8 months. Both patients and clinicians completed assessment tools that included: the Manchester Scar Scale (to measure scar perception), Dysmorphic Concern Questionnaire (to assess body image), Body Dysmorphic Concern Questionnaire (to screen for body dysmorphic disorder) and EQ-5D (to measure life quality)...
November 16, 2017: Journal of Laryngology and Otology
https://www.readbyqxmd.com/read/29142283/a-mobile-device-based-imaging-spectrometer-for-environmental-monitoring-by-attaching-a-lightweight-small-module-to-a-commercial-digital-camera
#13
Fuhong Cai, Wen Lu, Wuxiong Shi, Sailing He
Spatially-explicit data are essential for remote sensing of ecological phenomena. Lately, recent innovations in mobile device platforms have led to an upsurge in on-site rapid detection. For instance, CMOS chips in smart phones and digital cameras serve as excellent sensors for scientific research. In this paper, a mobile device-based imaging spectrometer module (weighing about 99 g) is developed and equipped on a Single Lens Reflex camera. Utilizing this lightweight module, as well as commonly used photographic equipment, we demonstrate its utility through a series of on-site multispectral imaging, including ocean (or lake) water-color sensing and plant reflectance measurement...
November 15, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29141082/diagnostic-accuracy-of-pediatric-teledermatology-using-parent-submitted-photographs-a-randomized-clinical-trial
#14
Daniel M O'Connor, Olivia S Jew, Marissa J Perman, Leslie A Castelo-Soccio, Flaura K Winston, Patrick J McMahon
Importance: Advances in smartphone photography (both quality and image transmission) may improve access to care via direct parent-to-clinician telemedicine. However, the accuracy of diagnoses that are reliant on parent-provided photographs has not been formally compared with diagnoses made in person. Objective: To assess whether smartphone photographs of pediatric skin conditions taken by parents are of sufficient quality to permit accurate diagnosis. Design, Setting, and Participants: A prospective study was conducted among 40 patient-parent dyads at a pediatric dermatology clinic at the Children's Hospital of Philadelphia from March 1 to September 30, 2016, to assess concordance between diagnoses made by an independent pediatric dermatologist based on in-person examination and those based on parental photographs...
November 15, 2017: JAMA Dermatology
https://www.readbyqxmd.com/read/29140904/reconstruction-of-microtias-with-constricted-ear-features-a-22-year-experience
#15
Chul Park, Jung Youl Park
BACKGROUND: The surgical correction of 'microtias with constricted ear features' has remained a challenge due to the variable shape and large volume of the remnant cartilage and skin involved. In order to clarify how this remnant cartilage and skin should be treated, we have reviewed and analyzed cases operated at our Center. METHODS: A total of 167 cases of Microtia with Constricted Ear Features, operated from 1992 to 2014, were included in the study. They were reviewed through medical records and photographs, analysis of surgical methods, and postoperative outcomes...
November 11, 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/29140537/using-normal-and-high-pulse-coverage-with-picosecond-laser-treatment-of-wrinkles-and-acne-scarring-long-term-clinical-observations
#16
Christine Dierickx
OBJECTIVE: The picosecond 755 nm alexandrite laser using a diffractive lens array has demonstrated consistent clinical efficacy for improving the appearance of acne scarring and wrinkles amongst other benefits. This small pilot study is to assess the difference, if any, in clinical benefit if a higher than the standard protocol for number of pulses delivered to a tissue area is used compared to the standard protocol guidelines. METHOD: Seven subjects received treatment to one side of the face with a standard protocol number of laser pulses with the other side of the face receiving higher than standard number of pulses from the same 755 nm picosecond laser using an additional diffractive lens array...
November 15, 2017: Lasers in Surgery and Medicine
https://www.readbyqxmd.com/read/29140385/virtual-treatment-planning-for-implant-retained-nasal-prosthesis-a-clinical-report
#17
Muaiyed Mahmoud Buzayan, Norsiah Binti Yunu, Ha Kien Oon, Omar Tawfiq
Osseointegrated craniofacial implants have improved retention and patients' perceptions of implant-retained nasal prostheses; however, the determination of the available bone sites for implant placement post-rhinectomy is difficult. This case report describes the use of cone beam computed tomography scanning and computer-assisted virtual planning in conjunction with digital photographs for rehabilitation of a facial defect with an implant-retained silicon nasal prosthesis. Two implants were planned in the anatomical area with adequate bone volume to achieve favorable cosmetic outcomes and accessibility for hygiene maintenance...
November 2017: International Journal of Oral & Maxillofacial Implants
https://www.readbyqxmd.com/read/29140134/a-nutrition-recovery-station-following-recreational-exercise-improves-fruit-consumption-but-does-not-influence-fluid-recovery
#18
Ben Desbrow, Katelyn Barnes, Caroline Young, Gregory R Cox, Chris Irwin
Immediate post-exercise access to fruit/fluid via a recovery "station" is a common feature of mass participation sporting events. Yet little evidence exists examining their impact on subsequent dietary intake. The aim of this study was to determine if access to fruit/water/sports drinks within a recovery station significantly alters dietary and fluid intakes in the immediate post-exercise period and influences hydration status the next morning. 127 (79 males) healthy participants (mean±SD, age=22.5±3.5y, body mass (BM)=73±13kg) completed two self-paced morning 10km runs separated by 1 week...
November 15, 2017: International Journal of Sport Nutrition and Exercise Metabolism
https://www.readbyqxmd.com/read/29139647/is-increased-facial-asymmetry-associated-with-the-use-of-hormonal-contraceptive-among-polish-young-women-in-wroclaw
#19
Slawomir Koziel, Raja Chakraborty, Dariusz Danel, Krzysztof Borysławski
Fluctuating asymmetry (FA) is the small random deviations from a perfect bilateral symmetry in a morphological trait. It is considered as an indicator of biological quality and developmental stability of individual. Adverse environmental conditions and high levels of sex steroids may increase FA. Symmetry in women was found to be related with phases of the menstrual cycles (MC). This cross sectional study aimed to compare facial symmetry between women using and not using hormonal contraceptives with reference to the phases of their fertile and non-fertile phases of MC...
March 2017: Collegium Antropologicum
https://www.readbyqxmd.com/read/29139359/oral-lichen-planus-a-cross-sectional-descriptive-study-of-33-patients
#20
Virendra N Sehgal, Nazim Hussain Syed, Ashok Aggarwal, Shruti Sehgal
Oral lichen planus (OLP), a well-known entity, is often neglected; however, its assessment is considered essential for evolving future strategies for treatment. Thirty-three patients with OLP from 200 consecutive patients with oral mucosal lesions were studied according to demography. Tobacco chewing, smoking, and alcohol intake were recorded. Examination of the oral cavity, using a head light and tongue depressor, was undertaken to define the morphology of the lesion(s). Colored photographs were an essential part of the process...
2017: Skinmed
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