Sentence examples for duration of daylight from inspiring English sources

On average, Mr. Rao said, the atmosphere's lensing effect adds about six or seven minutes to the duration of daylight.

However, in these higher latitudes the greatly increased duration of daylight in summer compensates significantly for shorter frost-free seasons.

We also found seasonal changes in the 5-HT1A receptor in serotonin projection regions, with higher availability on days with a longer duration of daylight.

To investigate the possible roles of season of birth and perinatal duration of daylight hours (photoperiod) in the development of myopia.

Recent work has shown that the optically stimulated luminescence (OSL) signal can be used to determine the duration of daylight exposure for rock surfaces, complementing the surface exposure dating technique using cosmogenic nuclides.

In the first step, 30 50 years observed daily values of Tmax, Tmin, Tmean, spread between Tmin and Tmax and the duration of daylight are clustered by a non hierarchical cluster analysis.

The biological signal for photoperiodic changes in seasonally breeding mammals is a change in the duration of melatonin secretion, which in a natural environment reflects the different durations of daylight across the year, with longer nights leading to a longer duration of melatonin secretion.

Comparisons with biome reconstructions from other interglacial intervals at Lake El'gygytgyn suggest that precession-related summer insolation intensity and obliquity-related duration of summer daylight are major controls on the onset of interglaciations, whereas obliquity probably plays a more significant role on vegetation succession at northern high latitudes during the Pleistocene.

They found that these mice showed symptoms of SAD, exhibiting more severe depression when the duration of simulated daylight in the laboratory was reduced.

Decades of research in chronobiology show that the timing, intensity and duration of exposure to daylight and darkness directly affect how well people sleep, how well they function while awake and how well they feel.

Longitudinal coordinates and elevation have a minor effect on the estimation of daylight duration.