Cognitive health is focused on a personâs ability to think, learn and remember. The most common cognitive health issue facing the elderly is dementia, the loss of those cognitive functions. Approximately 47.5 million people worldwide have dementiaâa number that is predicted to nearly triple in size by 2050.
The sky view factor is the view factor from the surface to the sky. This is the ratio of the diffuse sky radiation received by the surface to that which would be received by the same surface if it were completely exposed to the sky.
Field of View. The field of view is the area of sky or land seen through your binoculars, determined by the design of the instrumentâs optics. It is expressed in two ways; as the width in feet at 1,000 yards, or in degrees of field. When expressed in feet the field is called linear, and when expressed in degrees it is called angular.