UNLABELLED BACKGROUND Growth rate In children is reported to have seasonal variability. There are fewer published data regarding seasonal variability while on growth hormone (GH) therapy, and none analyzing growth rate with respect to number of daylight hours. METHODS We analyzed 11,587 3-month intervals in 2277 prepubertal children (boys ages 3-14 years, girls ages 3-12 years) with idiopa...

1. While several reports of photosensitive pigments from the retinas of animals possessing large numbers of cone cells have been published, the only study which could be confirmed was Wald's discovery of iodopsin, a red-sensitive pigment from chicken eyes. 2. In its chemical properties, such as the range of pH stability and the effect of polar organic solvents, iodopsin resembles rhodopsin but ...

Using natural light in architectural spaces has been very beneficial several ways including energy efficiency, cost control, health and wellbeing of users, prevention electricity dissipation other negative effects artificial lighting. Daylight architecture satisfies both mental physical human needs reduces fossil consumption. This paper appraised the use daylighting sustainable housing developm...

A new daylight simulation method for radiosity environments is presented. Daylight illumination is transported in a first step where sun and sky are represented as a set of directional sources. Light is transported using parallel projections of these sources. The scene mesh is adaptively subdivided using energy and visibility criteria obtained from a extended scan-line algorithm that computes a...

This paper presents a methodology for optimizing skylight design with the considerations of thermal comfort, daylight availability and energy performance by integrated daylight and thermal simulation. Dynamic thermal modelling programmed IES and daylight simulation engine Radiance are used as simulation tools to study energy performance of a shopping mall atrium with a skylight on the roof ...

Ovulation rate in gilts maintained under continuous light (daylight plus 118 to 130 lux of artificial light at night) for a complete oestrous cycle during the spring months was not significantly different from that in gilts maintained under normal daylight. Average ovulation rates were 13\m=.\4for controls and 13\m=.\1for treated gilts. A significant (P<0\m=.\01)difference in ovulation rate was...