‘Dark night’ under a bright light

Bright Light from Dark Matter

The 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...

Bright and dark helices of light.

Laser beams can be made to form bright and dark intensity helices of light. Such helices have a pitch length on the order of a wavelength and may have applications in lithography and the manipulation of particles through optical forces. The formation of bright helices is more strongly constrained by optical resolution limits than that of dark helices, corresponding scaling laws are derived and ...

Combinations of bright light, scheduled dark, sunglasses, and melatonin to facilitate circadian entrainment to night shift work.

Various combinations of interventions were used to phase-delay circadian rhythms to correct their misalignment with night work and day sleep. Young participants (median age = 22, n = 67) participated in 5 consecutive simulated night shifts (2300 to 0700) and then slept at home (0830 to 1530) in darkened bedrooms. Participants wore sunglasses with normal or dark lenses (transmission 15% or 2%) w...

Bright and Dark Solitons

Departamento de Teoría de la Señal y Comunicaciones e Ingeniería Telemática Universidad de Valladolid, ETSI Telecomunicación, Campus Miguel Delibes s/n 47011 Valladolid, Spain Phone: +34 983 185545, Fax: +34 983 423667, e-mail: [email protected] Joule Physics Laboratory, School of Sciences, Institute of Materials Research University of Salford, Salford M5 4WT, UK Phone: +44 161 295 5079, Fax: +...