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Author Garstang, R.H.
Title Dust and Light Pollution Type Journal Article
Year (up) 1991 Publication The Astronomical Society of the Pacific Abbreviated Journal
Volume 103 Issue Pages 1109-1116
Keywords Skyglow
Abstract We have refined our model for the prediction ofthe brightness ofthe night sky due to man-made light pollution by the addition of an ozone layer, by the use ofa more accurate representation ofthe atmospheric molecular density variation as a function ofheight, and by using a better mathematical representation ofthe scattering angular function of aerosols. Each ofthese modifications leads to a small reduction in the predicted brightness ofthe night sky. We have also added to our model a thin layer ofdust ofarbitrary optical thickness and height above sea level. We have studied dust clouds at various heights and ofvarious optical thicknesses. Most ofour calculations have been performed for Kitt Peak National Observatory. Most calculations have used scattering and absorption coefficients appropriate for volcanic clouds; a few calculations refer to desert dust. Light pollution is reduced by a dust cloud ofmoderate density whose altitude is below about 10 km (for the V band) and increased for dust clouds at greater altitudes. Observations from good sites are not likely to be greatly affected by the increases in light pollution caused by volcanic clouds at altitudes oforder 20 km.
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Call Number IDA @ intern @ Serial 2523
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Author Kolb, H.H.
Title The effect of moonlight on activity in the wild rabbit (Oryctolagus cuniculus) Type Journal Article
Year (up) 1992 Publication Journal of Zoology Abbreviated Journal
Volume 228 Issue 4 Pages 661-665
Keywords Animals
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ISSN 0952-8369 ISBN Medium
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Notes Approved no
Call Number LoNNe @ christopher.kyba @ Serial 417
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Author Rydell, J.
Title Exploitation of Insects around Streetlamps by Bats in Sweden Type Journal Article
Year (up) 1992 Publication Functional Ecology Abbreviated Journal Functional Ecology
Volume 6 Issue 6 Pages 744
Keywords Animals
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ISSN 0269-8463 ISBN Medium
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Call Number LoNNe @ christopher.kyba @ Serial 418
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Author Steinberg, S.; Podoler, H.; Applebaum, S. W.
Title Diapause induction in the codling moth, Cydia pomonella: effect of prediapause temperatures. Type Journal Article
Year (up) 1992 Publication Entomologia Experimentalis et Applicata Abbreviated Journal
Volume 62 Issue 2 Pages 131–137
Keywords Animals
Abstract The effect of four prediapause temperatures (18, 22, 26 and 30 °C) on the photoperiodic response of the codling moth, Cydia pomonella (L.), was studied under controlled conditions. The highest rates of diapause were recorded, for all day-lengths, at temperatures of 22 and 26 °C while relatively lower rates of diapause were elicited at 18 and 30 °C. The same trend was demonstrated by projecting the values of the critical photoperiod which induces 50% diapause (= CPhP50) over the prediapause temperature. The change in diapause incidence as a function of photoperiod, at all prediapause temperatures, exhibited a response characteristic of long-day insects, i.e. high rates of diapause at short days (12–13.5 h) and a decrease in diapause incidence at long days (14–15 h). The results for temperatures 22, 26 and 30 °C support the view that lower prediapause temperatures enhance diapause induction, at a given photoperiod, while higher temperatures tend to avert or diminish the process. On the other hand, the low rates of diapause obtained at 18 °C contradict this view. Nevertheless, high correlation was found between the laboratory evidence and field data, indicating the adaptability of the Israeli codling moth to subtropical climate.
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Call Number LoNNe @ kagoburian @ Serial 619
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Author BOE.
Title Real Decreto 1560/1992, de 18 de diciembre, por el que se aprueba la Clasificaci{ó}n Nacional de Actividades Econ{ó}micas (CNAE-93). Type Report
Year (up) 1992 Publication BOE Abbreviated Journal
Volume Issue Pages
Keywords Remote Sensing
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Language Spanish Summary Language Original Title
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Call Number LoNNe @ kagoburian @ Serial 906
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