Studies have indicated that night lights interfere with the circadian rhythm in the human body and threaten human health. Our previous studies indicated that continuous light exposure severely damages the reproductive...Studies have indicated that night lights interfere with the circadian rhythm in the human body and threaten human health. Our previous studies indicated that continuous light exposure severely damages the reproductive endocrine system of female rats resembles polycystic ovary syndrome in women. In this study, we used the continuous measurement method to observe changes in the basal physiological indicators of female rats in an abnormal light exposure environment. Our study results indicated that in female rats: 1) the body temperature first continuously and gradually increased followed by a gradually decrease;2) the increase in body weight slowed down at the late stage of the experimental process;3) the random blood glucose level increased, and the fasting serum insulin level decreased;and 4) the serum C-reactive protein level increased. Our study investigated for the first time the correlation between the duration of continuous light exposure in female rats and the continuously measured basal physiological indicators and preliminarily discussed the effect of continuous light exposure on female basal metabolism and the possible inflammation mechanism. We propose that long-term continuous exposure to night lights in females severely damages their immune and metabolic systems.展开更多
This research investigates the reliability of two measures intended to reduce moose-vehicle collisions(MVCs):continuous lighting and clearing/grubbing of roadway corridors.Individual analyses and a combined regression...This research investigates the reliability of two measures intended to reduce moose-vehicle collisions(MVCs):continuous lighting and clearing/grubbing of roadway corridors.Individual analyses and a combined regression analysis were conducted to measure the effects of several combinations of variables on MVC rates,including clearing and grubbing,continuous lighting,clearing without grubbing,moose population,precipitation,snowfall,and maximum snow depth.Nine corridor improvement projects were analyzed based on the variables present.In previous studies,it has been hypothesized that MVC rates are influenced by environmental conditions such as snowfall and daylight.The Alaska Department of Transportation and Public Facilities(DOT&PF)has performed many studies on MVCs along several corridors.Some corridors showed a significant drop in the number of MVCs after the installation of continuous lighting.The results show there is a consistent drop in MVCs after clearing and grubbing,with the exception of one corridor.The combined clearing/grubbing and continuous lighting projects also resulted in a consistent drop in MVCs.The projects with clearing and grubbing as a component had varying trends in MVCs,which may indicate that DOT&PF Maintenance and Operations performed clearing of re-vegetated areas,or that older growth is less of an attractant for moose.展开更多
文摘Studies have indicated that night lights interfere with the circadian rhythm in the human body and threaten human health. Our previous studies indicated that continuous light exposure severely damages the reproductive endocrine system of female rats resembles polycystic ovary syndrome in women. In this study, we used the continuous measurement method to observe changes in the basal physiological indicators of female rats in an abnormal light exposure environment. Our study results indicated that in female rats: 1) the body temperature first continuously and gradually increased followed by a gradually decrease;2) the increase in body weight slowed down at the late stage of the experimental process;3) the random blood glucose level increased, and the fasting serum insulin level decreased;and 4) the serum C-reactive protein level increased. Our study investigated for the first time the correlation between the duration of continuous light exposure in female rats and the continuously measured basal physiological indicators and preliminarily discussed the effect of continuous light exposure on female basal metabolism and the possible inflammation mechanism. We propose that long-term continuous exposure to night lights in females severely damages their immune and metabolic systems.
基金the Alaska Department of Transportation and Public Facilities(DOT&PF)and the Federal Highway Administration(FHWA)for providing funding for this project under grant number Z586520000/RSA 2558049,and for the cooperation of Alaska Department of Fish and Game(ADF&G).
文摘This research investigates the reliability of two measures intended to reduce moose-vehicle collisions(MVCs):continuous lighting and clearing/grubbing of roadway corridors.Individual analyses and a combined regression analysis were conducted to measure the effects of several combinations of variables on MVC rates,including clearing and grubbing,continuous lighting,clearing without grubbing,moose population,precipitation,snowfall,and maximum snow depth.Nine corridor improvement projects were analyzed based on the variables present.In previous studies,it has been hypothesized that MVC rates are influenced by environmental conditions such as snowfall and daylight.The Alaska Department of Transportation and Public Facilities(DOT&PF)has performed many studies on MVCs along several corridors.Some corridors showed a significant drop in the number of MVCs after the installation of continuous lighting.The results show there is a consistent drop in MVCs after clearing and grubbing,with the exception of one corridor.The combined clearing/grubbing and continuous lighting projects also resulted in a consistent drop in MVCs.The projects with clearing and grubbing as a component had varying trends in MVCs,which may indicate that DOT&PF Maintenance and Operations performed clearing of re-vegetated areas,or that older growth is less of an attractant for moose.
