The Sun based vitality is rapidly progressing as an essential method for renewable energy resources. More vitality is obtained by tracking the solar panel, by placing the panel remains related to the sun at a right edge to the beams of light. It illustrates the point of interest of outline and development of a model for solar tracking system with two degrees of opportunity, which recognizes the...

BACKGROUND Bright artificial light improves non-seasonal depression. Preliminary observations suggest that sunlight could share this effect. METHODS Length of hospitalization was recorded for a sample of 415 unipolar and 187 bipolar depressed inpatients, assigned to rooms with eastern (E) or western (W) windows. RESULTS Bipolar inpatients in E rooms (exposed to direct sunlight in the mornin...

UV radiation is present in sunlight and can be emitted from numerous artificial sources. Outdoor workers are exposed to sunlight in a wide variety of occupations like sailors, fishers, construction workers, farmers, and other. Presented are the skin diseases caused by sunlight exposure. They may be of little medical importance such as stigmata or create problems like photoaging, skin carcinoma,...

L. FELLER, R.A.G. KHAMMISSA, N.H. WooD, Y. JADWAT, R. MEYERoV, J. LEMMER Department of Periodontology and oral Medicine, School of Dentistry, Faculty of Health Sciences, University of Limpopo, Medunsa Campus, South Africa; * School of Dentistry, Faculty of Health Sciences, University of Limpopo, Medunsa Campus, South Africa Professor Emeritus: University of Witwatersrand, Johannesburg, Universi...

Since the 18th century tuberculosis has been a major cause of death throughout the world. It is a highly infectious disease that spreads by droplet infection and finding effective treatment to combat tuberculosis took a great deal of time. One of the first treatments to have some real success was a stay in a sanatorium. Sanatoria were homes that provided patients with good food and fresh air (a...

Silk fabrics were colored by gold nanoparticles (NPs) that were in situ synthesized through the induction of sunlight. Owing to the localized surface plasmon resonance (LSPR) of gold NPs, the treated silk fabrics presented vivid colors. The photo-induced synthesis of gold NPs was also realized on wet silk through adsorbing gold ions out of solution, which provides a water-saving coloration meth...

Immunocytochemistry was used for the direct measurement of cyclobutane pyrimidine dimers, (6-4) photoproducts, and Dewar isomers in normal human mononuclear cells following irradiation by natural sunlight or by a FS20 broad spectrum UVB sunlamp. The induction of each type of photoproduct was detected following 30-60 min sunlight exposure or with FS20 fluences as low as 50-100 Jm-2. With increas...

PURPOSE The recent increase in the prevalence of allergic diseases is hypothetically attributed to immune dysregulation in turn caused by a reduction in exposure to sunlight. We explored relationships between birth season, sunlight exposure, exercise duration, and an allergic disease. METHODS We performed a questionnaire-based survey on allergic diseases among elementary school students. Birt...

Under low growth-irradiance and/or excessive nitrogen (N) fertilization, the roots of leafy vegetables could take up nitrate (NO3) faster than the plant can convert it to organic nitrogen compounds. NO3 is suspected to have carcinogenic effect in human when eaten in high quantity. In this study, lettuce plants were first grown in an aeroponics system with full nutrients (full NO3) under full su...