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Author Taft, H.; Agee, H.; Hopkins, A.
Title Field Evaluation of Artificial Light for Control of Bollworms on Cotton. Type Journal Article
Year (up) 1972 Publication Environmental Abbreviated Journal
Volume 1 Issue 3 Pages 295–300
Keywords Animals
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Call Number LoNNe @ kagoburian @ Serial 621
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Author DeVoe, R. D.
Title Dual Sensitivities of Cells in Wolf Spider Eyes at Ultraviolet and Visible Wavelengths of Light Type Journal Article
Year (up) 1972 Publication Journal of General Physiology Abbreviated Journal JGP
Volume 59 Issue 3 Pages 247-269
Keywords Animals; Adaptation; Animals; Color Perception; Electroretinography; Eye; Eye: radiation effects; Light; Membrane Potentials; Ocular; Ocular Physiological Phenomena; Radiation Effects; Spiders; Spiders: physiology; Ultraviolet Rays
Abstract Intracellular recordings have been made from visual cells in principal and secondary eyes of in vitro wolf spider preparations. The responses of all cells to all wavelengths of light were graded depolarizations; no hyperpolarizations or nerve discharges were seen. Cells in a secondary eye, the anterior lateral eye, had a maximum sensitivity in the visible at 510 nm and a secondary maximum, or shoulder, of sensitivity in the near ultraviolet at 380 nm. Cells in principal eyes, the anterior median eyes, all responded maximally both in the visible at 510 nm and in the ultraviolet at 360-370 nm or less. However, there was no typical ratio of ultraviolet to visible sensitivities; the differences in log sensitivities (log UV/VIS) varied from 3.3 to -0.5. Each principal eye had a population of cells with different ratios. These populations varied with the time of the year, possibly due to changes in light upon the animals. Chromatic adaptations of cells in anterior median (but not anterior lateral) eyes resulted in small, selective changes in spectral sensitivities, and there was some facilitation of responses from cells repeatedly stimulated. It is concluded that cells of secondary eyes contain only a visual pigment absorbing maximally in the visible, while cells of principal eyes probably contain variable amounts of both this pigment and one absorbing in the ultraviolet as well.
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Call Number LoNNe @ kagoburian @ Serial 668
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Author Burne, B.H.
Title Pollution By Light Type Journal Article
Year (up) 1972 Publication The Lancet Abbreviated Journal The Lancet
Volume 299 Issue 7751 Pages 642
Keywords Commentary, Human Health
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Call Number LoNNe @ christopher.kyba @ Serial 1191
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Author Bertiau, F.C.; de Graeve, E.; Treanor, P.J.
Title The Artificial Night-sky Illumination in Italy. Type Journal Article
Year (up) 1973 Publication Vatican Observatory publications Abbreviated Journal
Volume 1 Issue 4 Pages 157-179
Keywords Skyglow
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Call Number LoNNe @ kagoburian @ Serial 564
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Author Hoag, A.A.
Title City Sky Glow Monitoring at Kitt Peak. Type Journal Article
Year (up) 1973 Publication Publications of the Astronomical Society of the Pacific Abbreviated Journal
Volume 85 Issue 507 Pages 503-507
Keywords Skyglow
Abstract Photographs of night sky have been taken from Kitt Peak on clear moonless nights to provide a record of changes in contamination from artificial lights. Quantitative measures confirm the obvious qualitative impression that city sky-glow brightness is increasing as is the case at most existing observatory sites.
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Call Number LoNNe @ kagoburian @ Serial 565
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