Sentence examples for hr of light from inspiring English sources

Females were examined within 1 hr of light cycle for the presence of a vaginal plug as an indication of pregnancy.

Samples were firstly taken at the end of light period, then at 1, 2, 4, 8, and 12 hr of darkness and at 1, 2, 4, 8, and 12 hr of light.

For this purpose, we used two different environmental conditions: A light-dark (LD) cycle, in which mice are exposed to 12 hr of light (6 am–6 pm) and 12 hr of darkness (6 pm–6 am) and a dark-dark (DD) cycle, in which mice are exposed to constant darkness.

Birds were exposed to 23 hr of light per day.

Temperature was 27 ± 1°C and photoperiod was 14 hr of light.

All plants were grown in 16 hr of light per day in a growth room maintained at approximately 21 °.

This regimen has been described previously [ 30] and consisted of the following:  day 1: 10:00 a.m. 50-min exposure to cold (4°C) and 1 00 p.m. 60 min of restraint; day 2: 11 00 a.m. 60 min of cage agitation and 6 00 p.m. lights on overnight; day 3: 10:00 a.m. 3 hr of lights off and 3 00 p.m. 3 min of swim stress; day 4: 11:00 a.m.

Due to technical issues, we had to reject the recordings from two out of four males from trial I. Six (trial I) or seven (trials II and III) sound files per trial were chosen post hoc according to the following rationale for analysis: The respective recordings were started within 2 hr of lights on, and continued for a maximum of 4 hr (i.e., finished before birds' midday).

All mice were allowed AL access to LabDiet Laboratory Rodent Diet 5001 and water and were on a 13 hrs of light 11 hrs of dark cycle.

Approximately 60% of M1 ipRGCs in Opn4−/− mice exposed to 3 hrs of light expressed c-Fos; no β-galactosidase-positive RGCs expressed c-Fos in the dark.

Six-day-old wild type (Col-0) seedlings grown in a long day condition (16 hrs of light and 8 hrs of dark) were either kept in light or transferred to dark by wrapping the plates with aluminum foil.