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...

Human performance on color discrimination in visual display terminals may be affected by illuminant colors, the level of ambient illumination and background colors of the monitor. Few studies have focused on this topic. This study investigated human color discrimination ability in a simulated control room. Ten subjects were recruited as participants to perform a series of experimental tasks. A ...

Core body temperature is predominantly modulated by endogenous and exogenous components. In the present study we tested whether these two components can be reliably assessed in a protocol which lasts for only 120 h. In this so-called forced desynchrony protocol, 12 healthy male subjects (age 23.7 +/- 1.4 y) were subjected one by one to an artificial light/dark cycle of 20 h (10 lux vs. darkness...

Knowing that food ingestion and digestion are processes under neuroendocrine regulation, it is important to understand how fish larvae regulate these processes, when the digestive system itself development. This study aimed analyze gilthead seabream (Sparus aurata) larval feeding incidence intensity were affected by time, light, water temperature, through analysis of gut content this cholecysto...

Good lighting intensity can affect the quality of performance in activity, improper also cause mental stress on room users, eye disorders, and disorders body. This research was created to analyze needs suitability light by performing calculations lamp types, luxmeter measurements visualization using Dialux. Dialux is software for simulating, visualizing, analyzing systems geographic locations e...

Clarias sp. is one of major genera freshwater catfish and also common commodity in tropical aquaculture. Excessive light intensity expected to be responded by fish as environmental stressors. Fish that experience stress will increase the secretion catecholamine, cortisol, blood glucose levels p38 MAPKs catfish. The different lights affect physiological processes. purpose this study was analyze ...

Cotton fabric is a comfortable clothing material to wear in tropical climates. In addition the comfort aspect, cotton cloth expected be able protect skin from dangers of sun exposure. This research was conducted with aim knowing optimum amount protection produced by cloth, determining type and color that most effectively used as protector, SPF (sun factor) value category based on cloth. study t...

LUX is a design concept for an ultrafast X-ray science facility, based on an electron beam accelerated to GeV energies in a recirculating linac. Included in the design are short duration (200 fs or shorter FWHM) light sources using multiple stages of higher harmonic generation, seeded by a 200–250 nm laser of similar duration. This laser modulates the energy of a group of electrons within the e...

A strain of the filamentous non N-fixing cyanobacterium Phormidium sp. isolated from Messolonghi (W. Greece) saltworks, was cultured in laboratory at six different combinations salinity (20-40-60 ppt) and illumination (low-2000 lux high-8000 lux). At salinities 60 40 ppt high (XL-8000 lux), growth rate (?max) presented highest values (0.491 0.401, respectively) compared to corresponding 20 (0.2...