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Author Vyazovskiy, V.V.; Foster, R.G.
Title Sleep: a biological stimulus from our nearest celestial neighbor? Type Journal Article
Year 2014 Publication Current Biology : CB Abbreviated Journal Curr Biol
Volume 24 Issue 12 Pages R557-60
Keywords Human Health; Sleep; Review
Abstract (down) Three studies have retrospectively analysed different data-sets to assess whether there is an effect of lunar phase upon human sleep. The results and conclusions differ. Until specifically designed experiments, controlling for key variables, are undertaken this issue will remain open.
Address Nuffield Department of Clinical Neurosciences, Nuffield Laboratory of Ophthalmology, University of Oxford, Levels 5-6 West Wing, John Radcliffe Hospital, Headley Way, Oxford OX3 9DU, UK. Electronic address: russell.foster@eye.ox.ac.uk
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Language English Summary Language Original Title
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Series Volume Series Issue Edition
ISSN 0960-9822 ISBN Medium
Area Expedition Conference
Notes PMID:24937279 Approved no
Call Number LoNNe @ kyba @ Serial 1478
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Author Sun, C.; Lian, Z.
Title Sensitive physiological indicators for human visual comfort evaluation Type Journal Article
Year 2016 Publication Lighting Research and Technology Abbreviated Journal Lighting Res. & Tech.
Volume 48 Issue 6 Pages 726-741
Keywords Human health; human vision; Melatonin
Abstract (down) Three physiological factors (melatonin levels, tear mucus ferning quality and degree of asthenopia) were examined for their relationship to visual comfort. A lighting environment was created where the illuminance, illuminance uniformity and correlated colour temperature could be adjusted. A three-factor and three-level orthogonal experiment with 24 subjects was designed and carried out. The results indicated that the selected environmental factors had different impacts on the physiological factors. With the illuminance increasing, the melatonin level decreased significantly and the tear mucus ferning quality was improved. However, there is no general influence of illuminance uniformity and correlated colour temperature on the physiological parameters, only differential effects among the three levels were found.
Address Zhiwei Lian, Department of Architecture, School of Naval Architecture, Ocean & Civil Engineering, Shanghai Jiao Tong University, 800 Dongchuan Road, Shanghai 200240, PR China; zwlian(at)sjtu.edu.cn
Corporate Author Thesis
Publisher SAGE Place of Publication Editor
Language English Summary Language English Original Title
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Notes Approved no
Call Number IDA @ john @ Serial 1333
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Author Firebaugh, A.; Haynes, K.J.
Title Experimental tests of light-pollution impacts on nocturnal insect courtship and dispersal Type Journal Article
Year 2016 Publication Oecologia Abbreviated Journal Oecologia
Volume Issue Pages
Keywords Animals; Ecology
Abstract (down) Though a number of effects of artificial light pollution on behavior and physiology have been described, there is little understanding of their consequences for the growth and distribution of populations. Here, we document impacts of light pollution on aspects of firefly population ecology and underlying mating behaviors. Many firefly species have a unique communication system whereby bioluminescent flashes are used in courtship displays to find and attract mates. We performed a series of manipulative field experiments in which we quantified the effects of adding artificial nighttime lighting on abundances and total flashing activity of fireflies, courtship behaviors and mating between tethered females and free-flying males, and dispersal distances of marked individuals. We show that light pollution reduces flashing activities in a dark-active firefly species (Photuris versicolor) by 69.69 % and courtship behavior and mating success in a twilight-active species (Photinus pyralis). Though courtship behavior and mating success of Photinus pyralis was reduced by light pollution, we found no effects of light pollution on male dispersal in this species. Our findings suggest that light pollution is likely to adversely impact firefly populations, and contribute to wider discussions about the ecological consequences of sensory pollution.
Address Blandy Experimental Farm, University of Virginia, 400 Blandy Farm Lane, Boyce, VA, 22620, USA
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Language English Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0029-8549 ISBN Medium
Area Expedition Conference
Notes PMID:27646716 Approved no
Call Number LoNNe @ kyba @ Serial 1526
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Author Fiorentin, P.; Bertolo, A.; Cavazzani, S.; Ortolani, S.
Title Calibration of digital compact cameras for sky quality measures Type Journal Article
Year 2020 Publication Journal of Quantitative Spectroscopy and Radiative Transfer Abbreviated Journal Journal of Quantitative Spectroscopy and Radiative Transfer
Volume in press Issue Pages
Keywords Skyglow; Instrumentation
Abstract (down) This work presents the possibility of using the extremely popular compact digital cameras of smartphones or action cameras to perform sky photometry. The newest generation of these devices allows to save raw images. They are not as good as digital single-lens reflex camera, in particular in terms of sensitivity, noise and pixel depth (10 bit versus 12 bit or more), but they have the advantage of being extremely widespread on the population and relatively cheap. These economical digital compact cameras work with an electronic shutter, it overcomes the consumption of mechanics and allows to gather images for long time. The work uses a simple calibration method to transfer raw data from the proprietary RGB color space to the standard CIE 1931 color space. It allows the measurement of sky luminance in cd m−2 with an expected uncertainty of about 20%. Furthermore, the colorimetric calibration allows to know the correlated color temperature of a portion of the sky, it can help the identification of the kind of polluting sources. Aiming at better clarifying the performances of calibrated digital compact cameras, a comparison with a calibrated DSLR camera is presented in outdoor situations showing a good agreement both for luminance and color temperature measurements.
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Language Summary Language Original Title
Series Editor Series Title Abbreviated Series Title
Series Volume Series Issue Edition
ISSN 0022-4073 ISBN Medium
Area Expedition Conference
Notes Approved no
Call Number GFZ @ kyba @ Serial 3063
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Author Benot, S.; R. Goberna; R. J. Reiter; S. Garcia-Mauriño; C. Osuna; J. M. Guerrero
Title Physiological levels of melatonin contribute to the antioxidant capacity of human serum Type Journal Article
Year 1999 Publication Journal of Pineal Research Abbreviated Journal
Volume 27 Issue Pages 59-64
Keywords Human Health
Abstract (down) This work evaluates whether physiological concentrations of the pineal secretory product melatonin contribute to the total antioxidant status (TAS) of human serum. Day and nighttime serum samples were collected from healthy volunteers ranging from 2 to 89 years of age and used to measure melatonin and TAS. Results showed that both melatonin and TAS in human serum exhibited 24 hr variations with nocturnal peak values at 01:00 hr. Moreover, exposure of volunteers to light at night resulted in clear decreases of both TAS and melatonin. Furthermore, when melatonin was removed from sera collected at night, the TAS value of the sample was reduced to basal daytime values. In aging studies, it was found that nocturnal serum values of TAS and melatonin exhibited maximal values during the first four decades; thereafter, these values decreased as age advanced. In 60-year-old individuals, day/night differences in serum melatonin and TAS levels were clearly diminished, by more than 80%, with these differences being completely abolished in older individuals. Our results suggest that melatonin contributes to the total antioxidative capability of human serum. This antioxidant contribution of melatonin is reduced as age advances correlating with the age-related reduction of melatonin.
Address
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Notes Approved no
Call Number LoNNe @ kagoburian @ Serial 719
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