To earn the title of dark sky island, officials on Sark measured night time illumination levels and submitted digital photographs that showed the clarity of constellations in the night sky.
The Bortle Dark-Sky Scale measures night sky brightness on a scale of one to nine, or pristinely dark to inner-city bright.
We aimed to measure night time Trec in 42 recruited infants every 4 weeks from 4 to 20 weeks of age.
The classical way to assess temperature control by measuring night time mean Trec and magnitude of Trec drop at the onset of sleep is observer-dependent and was only possible in one-third of the temperature series whereas the automated DFA analysis is robust and easy and could be of clinical use.
Wake after sleep onset (WASO) is the variable typically used to measure night-time sleep disruption, but due to the multiple bed times and wake times typical in the postpartum period, the WAKE variable was considered a more valid and reliable measure.
Spine size (measured across nights, 24 hr interval) was measured as the integrated optical density of each spine head, background-subtracted (using the optical density of neuropil next to the dendrite) and normalized to the mean brightness of the adjacent dendritic shaft.
I see from my garden diary that on 29 December 2000 it was -13C overnight and never rose above -5C all day, the pipes froze and it took all day fiddling with blowtorches to clear them, and on 1 January 2002 the ice was 4in thick on the water butts and it measured -11C over night.
Under illumination by incandescent lamps, the R FR (660 730) quantum ratio was 0.72, and the average photosynthetic photon flux at the canopy surfaces was 1 μmol photon sec-1 m-2, as measured at night by using a quantum sensor (model LI-1800C, Li-Cor, LiNEolNE NE).
In total, fingerstick glucose <63 mg/dL was measured on 8 nights during closed loop and 17 control nights.
Hospital inpatient nights are measured by the number of nights spent in hospitals for receiving inpatient care.
