نتایج جستجو برای: Solar exposure

تعداد نتایج: 424754  

Journal: :iranian journal of public health 0
lw hu hz gong djun yu q gao n gao m wang

background: in general, measurements of solar ultraviolet (uv) radiation are related to horizontal surfaces. while the hu­mans walking and standing outdoors expose to the natural solar uv radiation, their eyes, cheeks, extremities, trunks, or many other anatomical sites are close to vertical plane and random orient to different directions. in this study, we character­ized the diurnal variations...

Ata Allah Nadiri Hadi Sabri Mahak Osuli Parinaz Mehnati, Reza Malekzadeh Reza Meynagi Zadeh Zargar Yaser Bagheri

Introduction: Solar radiation has a major role in design, utilization, development, and planning of solar energy. The most important source of natural ultraviolet radiation is the sun, which has an important role in many biologic processes. Some of these processes are useful, like the production of vitamin D in the body, or curing rickets, and some of them are not, such as ski...

Hadi Sabri Mahak Osuli Parinaz Mehnati, Reza Malekzadeh Reza Meynagi Zadeh Zargar ta Allah Nadiri Yaser Bagheri

Introduction: Solar energy is one of the free sources, clean and environmentally friendly energy. Sun is the most important source of natural ultraviolet radiation that has a major role in the life of living beings. Industrial and medical applications of ultraviolet radiation have been clearly proven, like the production of vitamin D or treatment of many diseases, and also har...

Nowadays, with the development of the economy, the demand for energy is increasing rapidly while the energy supply is growing shorter and shorter. Researches indicate that energy consumption in the residential sector counts for the main parts of the total energy consumption. This paper evaluates the effect of building orientation on exposure to the solar radiation in a NESW orientated case o...

Various antireflection thin films are often used to cover glass to increase solar cell electrical parameters. In the recent years many efforts have been done to develop and improve of solar cell films with high electrical output. One of the most important challenges of obtaining of high-efficiency thin films of solar cells is creation an effective light trapping system. The new polymeric protec...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز 1381

‏‎the hypothesis is that recent and frequent exposure to lexical items leads to a more fluent production of speech in terms of rate of speech. to test the hypothesis,a one-way anova experimental design was carried out. 24 sednior students of efl participated in a one-way interview test. data analyses revealed that those who were exposed frequently to the lexical items over a week prior to inter...

Journal: :Journal of the American Academy of Dermatology 2011
Thomas B Richards Christopher J Johnson Zaria Tatalovich Myles Cockburn Melody J Eide Kevin A Henry Sue-Min Lai Sai S Cherala Youjie Huang Umed A Ajani

BACKGROUND Recent US studies have raised questions as to whether geographic differences in cutaneous melanoma incidence rates are associated with differences in solar ultraviolet (UV) exposure. OBJECTIVES We sought to assess the association of solar UV exposure with melanoma incidence rates among US non-Hispanic whites. METHODS We assessed the association between county-level estimates of a...

2006
A. V. Parisi M. G. Kimlin Alfio Parisi Michael Kimlin

Taking sun sheltered meal and tea breaks around solar noon can reduce occupational exposure to solar erythemal ultraviolet (UV) radiation by outdoor workers. The research presented in this paper has quantified the reductions in solar UV exposure to be expected in summer and winter for different scenarios of break times for this high UV exposure occupational group of the population.

Journal: :Annali dell'Istituto superiore di sanita 2016
Carlo Grandi Massimo Borra Andrea Militello Alessandro Polichetti

Occupational exposure to solar radiation may induce both acute and long-term effects on skin and eyes. Personal exposure is very difficult to assess accurately, as it depends on environmental, organisational and individual factors. The ongoing climate change interacting with stratospheric ozone dynamics may affect occupational exposure to solar radiation. In addition, tropospheric levels of env...

Journal: :Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 2010
Nancy E Thomas Anne Kricker Lynn From Klaus Busam Robert C Millikan Mary E Ritchey Bruce K Armstrong Julia Lee-Taylor Loraine D Marrett Hoda Anton-Culver Roberto Zanetti Stefano Rosso Richard P Gallagher Terence Dwyer Chris Goumas Peter A Kanetsky Colin B Begg Irene Orlow Homer Wilcox Susan Paine Marianne Berwick

BACKGROUND Solar elastosis adjacent to melanomas in histologic sections is regarded as an indicator of sun exposure, although the associations of UV exposure and phenotype with solar elastosis are yet to be fully explored. METHODS The study included 2,589 incident primary melanoma patients with assessment of histologic solar elastosis in the population-based Genes, Environment, and Melanoma s...

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