| Records |
| Author |
Faraji, H.; MacLean, W.J. |
| Title |
CCD noise removal in digital images |
Type |
Journal Article |
| Year |
2006 |
Publication |
IEEE Transactions on Image Processing |
Abbreviated Journal |
IEEE Trans. on Image Process. |
| Volume |
15 |
Issue |
9 |
Pages  |
2676-2685 |
| Keywords |
Remote Sensing |
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| ISSN |
1057-7149 |
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no |
| Call Number |
LoNNe @ kagoburian @ |
Serial |
935 |
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| Author |
Baker, B.J.; Richardson, J.M.L. |
| Title |
The effect of artificial light on male breeding-season behaviour in green frogs,Rana clamitans melanota |
Type |
Journal Article |
| Year |
2006 |
Publication |
Canadian Journal of Zoology |
Abbreviated Journal |
Can. J. Zool. |
| Volume |
84 |
Issue |
10 |
Pages |
1528-1532 |
| Keywords |
animals; amphibians; frogs; green frogs; Rana clamitans melanota; Reproduction; reproductive strategies |
| Abstract |
Artificial night lighting (or ecological light pollution) is only now gaining attention as a source of long-term effects on the ecology of both diurnal and nocturnal animals. The limited data available clearly indicate that artificial light can affect physiology and behaviour of animals, leading to ecological consequences at the population, community, and ecosystem levels. Aquatic ecosystems may be particularly vulnerable to such effects, and nocturnally breeding animals such as frogs may be especially affected. To address this potential, we quantify the effects of artificial light on calling and movement behaviour in a rural population of male green frogs (Rana clamitans melanota (Rafinesque, 1820)) during the breeding season. When exposed to artificial light, frogs produced fewer advertisement calls and moved more frequently than under ambient light conditions. Results clearly demonstrate that male green frog behaviour is affected by the presence of artificial light in a manner that has the potential to reduce recruitment rates and thus affect population dynamics. |
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0008-4301 |
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no |
| Call Number |
IDA @ john @ |
Serial |
71 |
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| Author |
Ruger, M.; Gordijn, M.C.M.; Beersma, D.G.M.; de Vries, B.; Daan, S. |
| Title |
Time-of-day-dependent effects of bright light exposure on human psychophysiology: comparison of daytime and nighttime exposure |
Type |
Journal Article |
| Year |
2006 |
Publication |
American Journal of Physiology. Regulatory, Integrative and Comparative Physiology |
Abbreviated Journal |
Am J Physiol Regul Integr Comp Physiol |
| Volume |
290 |
Issue |
5 |
Pages |
R1413-20 |
| Keywords |
Human Health; Adult; Body Temperature/*physiology; Circadian Rhythm/*physiology; Fatigue/*physiopathology; Heart Rate/*physiology; Humans; Hydrocortisone/*blood; *Light; Sleep Stages/*physiology |
| Abstract |
Bright light can influence human psychophysiology instantaneously by inducing endocrine (suppression of melatonin, increasing cortisol levels), other physiological changes (enhancement of core body temperature), and psychological changes (reduction of sleepiness, increase of alertness). Its broad range of action is reflected in the wide field of applications, ranging from optimizing a work environment to treating depressed patients. For optimally applying bright light and understanding its mechanism, it is crucial to know whether its effects depend on the time of day. In this paper, we report the effects of bright light given at two different times of day on psychological and physiological parameters. Twenty-four subjects participated in two experiments (n = 12 each). All subjects were nonsmoking, healthy young males (18-30 yr). In both experiments, subjects were exposed to either bright light (5,000 lux) or dim light <10 lux (control condition) either between 12:00 P.M. and 4:00 P.M. (experiment A) or between midnight and 4:00 A.M. (experiment B). Hourly measurements included salivary cortisol concentrations, electrocardiogram, sleepiness (Karolinska Sleepiness Scale), fatigue, and energy ratings (Visual Analog Scale). Core body temperature was measured continuously throughout the experiments. Bright light had a time-dependent effect on heart rate and core body temperature; i.e., bright light exposure at night, but not in daytime, increased heart rate and enhanced core body temperature. It had no significant effect at all on cortisol. The effect of bright light on the psychological variables was time independent, since nighttime and daytime bright light reduced sleepiness and fatigue significantly and similarly. |
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Department of Chronobiology, University of Groningen, The Netherlands. Melanie.Rueger@med.nyu.edu |
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English |
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0363-6119 |
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| Notes |
PMID:16373441 |
Approved |
no |
| Call Number |
LoNNe @ kagoburian @ |
Serial |
801 |
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| Author |
Xavier Kerola, D. |
| Title |
Modelling artificial night-sky brightness with a polarized multiple scattering radiative transfer computer code: Modelling artificial night-sky brightness |
Type |
Journal Article |
| Year |
2006 |
Publication |
Monthly Notices of the Royal Astronomical Society |
Abbreviated Journal |
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| Volume |
365 |
Issue |
4 |
Pages |
1295-1299 |
| Keywords |
Skyglow; modeling; radiative transfer; Gauss-Seidel; light pollution; Garstang model |
| Abstract |
As part of an ongoing investigation of radiative effects produced by hazy atmospheres, computational procedures have been developed for use in determining the brightening of the night sky as a result of urban illumination. The downwardly and upwardly directed radiances of multiply scattered light from an offending metropolitan source are computed by a straightforward Gauss-Seidel (G-S) iterative technique applied directly to the integrated form of Chandrasekhar's vectorized radiative transfer equation. Initial benchmark night-sky brightness tests of the present G-S model using fully consistent optical emission and extinction input parameters yield very encouraging results when compared with the double scattering treatment of Garstang, the only full-fledged previously available model. |
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0035-8711 |
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no |
| Call Number |
IDA @ john @ |
Serial |
278 |
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| Author |
Morgan Taylor, M. |
| Title |
Light Pollution and Nuisance: The Enforcement Guidance for Light as a Statutory Nuisance. |
Type |
Journal Article |
| Year |
2006 |
Publication |
Journal of Planning & Environmental Law |
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Issue |
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Pages |
1114–1127 |
| Keywords |
Regulations |
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LoNNe @ kagoburian @ |
Serial |
1048 |
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