Recent studies have shown that light has surprising neuroendocrine and anti-depressant effects in humans. Prompted by these findings, a UCSD group has three times replicated a 1967 study by Dewan showing that an ordinary bedside light can influence menstrual cyclicity. Before we can even begin to… More

Not Available A novel concept for a sapphire fiber-optic temperature sensor with microsecond response time and maximum operating temperature a-s high as 2,000 C is proposed. Two approaches, both based on optically excited fluorescence from the sensors, will be evaluated. Data will be obtained in… More

DESCRIPTION (provided by applicant): Multiple studies have established that bright light therapy is effective in alleviating symptoms of winter depression (seasonal affective disorder, or SAD). Light units used for treating SAD in the past have generally emitted polychromatic white light of highly… More

DESCRIPTION (provided by applicant): Vitamin D deficiency is now recognized as a significant health problem for middle-aged and older adults. Vitamin D deficiency exacerbates osteoporosis and causes the bone disease, osteomalacia. Vitamin D deficiency increases risk of skeletal fractures. It is well… More

Air Force operations often expose flight crew and support staff to unusual light-dark cycles that causes misalignment of the circadian pacemaker and sleep-wake cycles, resulting in disturbed sleep and impaired waking function. Air Force personnel are also frequently required to remain vigilant,… More