Sunny Days

Louvers design for LED displays for sunny days

The use of louvers attached to variable information display needs to be optimized taking into account different intrinsic and extrinsic parameters. The analysis of the performance of the display–louvers system takes into account the location, orientation, and daily and seasonal variations. The observation of the system is divided depending on the distance of observation. The far distance vision...

Taxing Sunny Days: Adjusting Taxes for Regional Living Costs and Amenities

Vitamin D deficiency and insufficiency in Africa and the Middle East, despite year-round sunny days.

Exposure to sunlight, specifically ultraviolet B (UVB), is essential for cutaneous vitamin D synthesis. Despite significant daily sunlight availability in Africa and the Middle East, persons living in these regions are frequently vitamin D insufficient or deficient. Vitamin D insufficiency (25-hydroxyvitamin D (25(OH)D) between 15 and 20 ng/mL (37.5-50 nmol/L)) has been described in various pop...

Sunny days, healthy ways: evaluation of a skin cancer prevention curriculum for elementary school-aged children.

BACKGROUND Primary prevention of skin cancer must start early in life to reduce total life-time sun exposure and severe overexposure in childhood. Childhood is an excellent time to form life-long prevention habits. A school-based curriculum can be an effective prevention strategy. OBJECTIVE Our purpose was to determine the effectiveness of a skin cancer prevention curriculum at increasing kno...

Tuberculosis drug resistance in Europe: sunny days, but clouds on the horizon?

D rug-resistant tuberculosis (TB) has now emerged as a public health concern of major proportions. Although drug resistance was recognised in the British Medical Research Council’s landmark streptomycin trial [1], there was little evidence that widespread resistance to multiple anti-TB drugs was a significant public health concern until New York City (NY, USA) reported that nearly 12% of all it...