منابع مشابه
Shedding light on night myopia.
First described during the 18th century, the cause of night myopia remains a controversial topic. Whereas several explanations have been suggested in the literature, particularly related with accommodation or chromatic shift in scotopic light conditions, no definitive explanation for its aetiology has been provided. We describe an experiment in which ocular refractive state was objectively and ...
متن کاملThe effect of Bright light on Fatigue and sleepiness in night shift work nurses
Objective: In this study we assessed the effect of bright light emitted by light box on fatigue, and sleepiness in nurses. Methods: 44 healthy female shift work nurses were allocated into two groups of intervention and control. In the first stage, bright light was emitted to the nurses in the intervention group by the light box, and bright light was not emitted to the control group. In the nex...
متن کاملCircadian flight schedules in night-migrating birds caught on migration.
Many species of migratory birds migrate in a series of solitary nocturnal flights. Between flights, they stop to rest and refuel for the next segment of their journey. The mechanism controlling this behaviour has long remained elusive. Here, we show that wild-caught migratory redstarts (Phoenicurus phoenicurus) are consistent in their flight scheduling. An advanced videographic system enabled u...
متن کاملNight on Earth: Mapping decadal changes of anthropogenic night light in Asia
The defense meteorological satellite program (DMSP) operational linescan system (OLS) sensors have imaged emitted light from Earth’s surface since the 1970s. Temporal overlap in the missions of 5 OLS sensors allows for intercalibration of the annual composites over the past 19 years (Elvidge et al., 2009). The resulting image time series captures a spatiotemporal signature of the growth and evo...
متن کاملKrill Migration: Up and Down All Night
specific patterning in neural maps, interpretable with the same type of machinery used to decode cortical representation of spatial images. Much previous work on dynamic perception has shown that for the brain time and space are not processed separately, but can influence each other strongly [19]. The new study [8] points to another example of the interaction between the two dimensions, showing...
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ژورنال
عنوان ژورنال: The Auk
سال: 1906
ISSN: 0004-8038,1938-4254
DOI: 10.2307/4070608