| Records |
| Author |
Aubé, M.; Kocifaj, M.; Zamorano, J.; Solano Lamphar, H.A.; Sanchez de Miguel, A. |
| Title |
The spectral amplification effect of clouds to the night sky radiance in Madrid |
Type |
Journal Article |
| Year |
2016 |
Publication |
Journal of Quantitative Spectroscopy and Radiative Transfer |
Abbreviated Journal |
Journal of Quantitative Spectroscopy and Radiative Transfer |
| Volume |
181 |
Issue |
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Pages  |
11-23 |
| Keywords |
Skyglow; Madrid; Spain; Europe; artificial light at night; light pollution; clouds; amplification |
| Abstract |
Artificial Light at Night (ALAN) may have various environmental impacts ranging from compromising the visibility of astronomical objects to the perturbation of circadian cycles in animals and humans. In the past much research has been carried out to study the impact of ALAN on the radiance of the night sky during clear sky conditions. This was mainly justified by the need for a better understanding of the behavior of ALAN propagation into the environment in order to protect world-class astronomical facilities. More recently, alongside to the threat to the natural starry sky, many issues have emerged from the biological science community. It has been shown that, nearby or inside cities, the presence of cloud cover generally acts as an amplifier for artificial sky radiance while clouds behave as attenuators for remote observers. In this paper we show the spectral behavior of the zenith sky radiance amplification factor exerted by clouds inside a city. We compare in-situ measurements made with the spectrometer SAND-4 with a numerical model applied to the specific geographical context of the Universidad Complutense de Madrid in Spain. |
| Address |
Cégep de Sherbrooke, 475 rue du Cégep, Sherbrooke, Canada J1E 4K1; aubema(at)gmail.com |
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Thesis |
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| Publisher |
Elsevier |
Place of Publication |
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Editor |
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| Language |
English |
Summary Language |
English |
Original Title |
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| Series Volume |
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Series Issue |
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Edition |
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| ISSN |
0022-4073 |
ISBN |
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| Notes |
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Approved |
no |
| Call Number |
IDA @ john @ |
Serial |
1351 |
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| Author |
Kang, X.; Jia, L.; Zhang, X.; Li, Y.; Chen, Y.; Shen, X.; Wu, Y. |
| Title |
Long-Term Continuous Light Exposure Affects Body Weight and Blood Glucose Associated with Inflammation in Female Rats |
Type |
Journal Article |
| Year |
2016 |
Publication |
Journal of Biosciences and Medicines |
Abbreviated Journal |
Jbm |
| Volume |
04 |
Issue |
09 |
Pages |
11-24 |
| Keywords |
Animals |
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Series Issue |
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Edition |
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| ISSN |
2327-5081 |
ISBN |
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| Notes |
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Approved |
no |
| Call Number |
LoNNe @ kyba @ |
Serial |
1527 |
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| Author |
Rund, S.; O'Donnell, A.; Gentile, J.; Reece, S. |
| Title |
Daily Rhythms in Mosquitoes and Their Consequences for Malaria Transmission |
Type |
Journal Article |
| Year |
2016 |
Publication |
Insects |
Abbreviated Journal |
Insects |
| Volume |
7 |
Issue |
2 |
Pages |
14 |
| Keywords |
Animals; Human Health |
| Abstract |
The 24-h day involves cycles in environmental factors that impact organismal fitness. This is thought to select for organisms to regulate their temporal biology accordingly, through circadian and diel rhythms. In addition to rhythms in abiotic factors (such as light and temperature), biotic factors, including ecological interactions, also follow daily cycles. How daily rhythms shape, and are shaped by, interactions between organisms is poorly understood. Here, we review an emerging area, namely the causes and consequences of daily rhythms in the interactions between vectors, their hosts and the parasites they transmit. We focus on mosquitoes, malaria parasites and vertebrate hosts, because this system offers the opportunity to integrate from genetic and molecular mechanisms to population dynamics and because disrupting rhythms offers a novel avenue for disease control. |
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Edition |
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| ISSN |
2075-4450 |
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Approved |
no |
| Call Number |
LoNNe @ kyba @ |
Serial |
1421 |
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| Author |
Choi, T.; Shao, X.; Cao, C.; Weng, F. |
| Title |
Radiometric Stability Monitoring of the Suomi NPP Visible Infrared Imaging Radiometer Suite (VIIRS) Reflective Solar Bands Using the Moon |
Type |
Journal Article |
| Year |
2016 |
Publication |
Remote Sensing |
Abbreviated Journal |
Remote Sensing |
| Volume |
8 |
Issue |
1 |
Pages |
15 |
| Keywords |
Instrumentation |
| Abstract |
The Suomi NPP (S-NPP) Visible Infrared Imaging Radiometer Suite (VIIRS) performs the scheduled lunar roll maneuver on a monthly basis. The lunar calibration coefficients and lunar F-factor are calculated by taking the ratio of the lunar observed radiance to the simulated radiance from the Miller and Turner (MT) lunar model. The lunar F-factor is also validated against that derived from the VIIRS Solar Diffuser (SD). The MT model-based lunar F-factors in general agree with SD F-factors. The Lunar Band Ratio (LBR) is also derived from two channel lunar radiances and is implemented in the National Oceanic and Atmospheric Administration (NOAA) Integrated Calibration and Validation System (ICVS) to monitor the VIIRS long-term radiometric performance. The lunar radiances at pixels are summed for each of the VIIRS Reflective Solar Bands (RSBs) and normalized by the reference band M11 which has the most stable SD-based calibration coefficient. LBRs agree with the SD based F-factor ratios within one percent. Based on analysis with these two independent lunar calibration methods, SD-based and LBR-based calibrations show a lifetime consistency. Thus, it is recommended that LBR be used for both VIIRS radiometric calibration and lifetime stability monitoring. |
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Series Issue |
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Edition |
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| ISSN |
2072-4292 |
ISBN |
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Approved |
no |
| Call Number |
LoNNe @ kyba @ |
Serial |
1384 |
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| Author |
Okuliarova, M.; Molcan, L.; Zeman, M. |
| Title |
Decreased emotional reactivity of rats exposed to repeated phase shifts of light-dark cycle |
Type |
Journal Article |
| Year |
2016 |
Publication |
Physiology & Behavior |
Abbreviated Journal |
Physiology & Behavior |
| Volume |
156 |
Issue |
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Pages |
16-23 |
| Keywords |
Animals |
| Abstract |
Disturbed light–dark (LD) cycles are associated with circadian disruption of physiological and behavioural rhythms and in turn with an increased risk of disease development. However, direct causal links and underlying mechanisms leading to negative health consequences still need to be revealed. In the present study, we exposed male Wistar rats to repeated phase shifts of LD cycle and analysed their ability to cope with mild emotional stressors. In experiment 1, rats were submitted to either a regular 12:12 LD cycle (CTRL rats) or 8-h phase delay shifts applied every 2 days for 5 weeks (SHIFT rats). Subsequently, the behaviour was examined in the open-field, black–white box and elevated plus maze tests. In experiment 2, changes in blood pressure (BP), heart rate (HR) as well as the activity of autonomic nervous system were measured in telemeterised rats in response to open-field and black–white box tests before and after 5-week exposure to shifted LD regime. Locomotor activity was consistently higher in SHIFT than CTRL rats in in the open-field and black–white box tests. Interestingly, in the elevated plus maze, SHIFT rats displayed increased risk assessment and decreased grooming compared to CTRL rats. Anxiety measures were affected only in the black–white box, where SHIFT rats displayed reduced anxiety-like behaviour compared to CTRL rats. Differences in behavioural reactivity between SHIFT and CTRL rats did not correspond with BP and HR changes. However, exposure to phase shifts increased the sympathovagal reactivity in the black–white box. Together, our results demonstrated that disturbed LD conditions decreased emotional reactivity of rats and affected their ability to cope with emotional stressors denoting an additional risk mechanism linking disrupted circadian organisation to adverse health effects. |
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| ISSN |
0031-9384 |
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| Notes |
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Approved |
no |
| Call Number |
LoNNe @ kyba @ |
Serial |
1331 |
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