| Budget Amount *help |
¥13,910,000 (Direct Cost: ¥10,700,000、Indirect Cost: ¥3,210,000)
Fiscal Year 2018: ¥3,250,000 (Direct Cost: ¥2,500,000、Indirect Cost: ¥750,000)
Fiscal Year 2017: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2016: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2015: ¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
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| Outline of Final Research Achievements |
This study examined characteristic of LED flickering light which have less impact on melatonin secretion. Since our findings in this study, the flickering light could prevent melatonin suppression only under the condition; the frequency of the flickering is under 1000Hz, the light intensity is high, the preventive effect could be get only immediate after the light exposure. On the other hand, the flickering light might suppress melatonin strongly, when the flickering light was exposed for more than one hour and the duty ratio (time ratio of turn the light on and turn it off) is high.
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