Results 11 to 20 of about 182,105 (288)
High intensity ultraviolet radiation induced changes in aquatic arthropod with retene and riboflavin
Environment Conservation Journal, 2011 Ozone depletion is resulting into increase in ultraviolet radiation level in the world. Exposure to UV radiation has been found to have negative effects on aquatic and terrestrial organisms.
Sunil Kumar, Priyanka Kumari
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Journal of Applied Sciences and Environmental Management, 2023 Welding goggles provide a degree of eye protection while some forms of welding and cutting are being done. They are intended to protect the eyes not only from the heat and optical radiation produced by the welding, such as the intense ultraviolet light ...
A. Bawan, F. A. Kamgba
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Are Nonprescription Sunglasses in Ethiopian Market Protective for Ultraviolet Radiation?
Clinical Optometry, 2021 Haile Woretaw Alemu, Nebiyat Feleke Adimassu Department of Optometry, College of Medicine and Health Sciences, University of Gondar, Gondar, EthiopiaCorrespondence: Nebiyat Feleke AdimassuDepartment of Optometry, College of Medicine and Health Sciences ...
Alemu HW, Adimassu NF
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Hawking radiation from a five-dimensional Lovelock black hole [PDF]
Front. Phys. 10 (5) , 100401 (2015), 2016 We investigate Hawking radiation from a five-dimensional Lovelock black hole using the Hamilton-Jacobi method. The behavior of the rate of radiation is plotted for various values of the ultraviolet correction parameter and the cosmological constant. The results show that, owing to the ultraviolet correction and the presence of dark energy represented ...
arxiv +1 more source
Metal-rich stars are less suitable for the evolution of life on their planets
Nature Communications, 2023 Atmospheric ozone and oxygen protect the terrestrial biosphere against harmful ultraviolet (UV) radiation. Here, we model atmospheres of Earth-like planets hosted by stars with near-solar effective temperatures (5300 to 6300 K) and a broad range of ...
Anna V. Shapiro +9 more
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Tips for Deciphering and Quick Calculation of Radiation Spectra [PDF]
JINST 13 (2018) C04012, 2018 Radiation spectra from ultra-relativistic electrons in thin [$T\ll l_f(\omega)$] and thick [$T\gg l_f(\omega)$] targets are discussed. The method of simplified averaging is described by examples of Landau-Pomeranchuk-Migdal effect and radiation at doughnut scattering.
arxiv +1 more source
Фотобіологія та фотомедицина, 2019 Introduction. Ultraviolet radiation is necessary for a person to function normally, but prolonged exposure to sunlight, including ultraviolet radiation of spectrum C, leads to cancer of the skin.
L.V. Leukhina
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Intensity-correlated spiking infrared and ultraviolet emission from sodium vapors [PDF]
, 2021 The directional spiking infrared and ultraviolet emission from sodium vapors excited to the 4D5/2 level by a continuous-wave resonant laser pump, that constitute a novel feature of the cooperative effects, has been analyzed. Cascade mirrorless lasing at 2207 and 2338 nm on population-inverted transitions and ultraviolet radiation at 330 nm that is ...
arxiv +1 more source
Ultraviolet Radiation from Evolved Stellar Populations: II. The Ultraviolet Upturn Phenomenon in Elliptical Galaxies [PDF]
Astrophys.J. 442 (1995) 105-141, 1994 We present an analysis of the far-ultraviolet upturn phenomenon (UVX) observed in elliptical galaxies and spiral galaxy bulges. Our premise is that the UV radiation from these systems emanates primarily from extreme horizontal branch (EHB) stars and their progeny.
arxiv +1 more source
Ultraviolet radiation changes plant color
BMC Plant Biology, 2020 Background Plant absorption of ultraviolet (UV) radiation can result in multiple deleterious effects to plant tissues. As a result, plants have evolved an array of strategies to protect themselves from UV radiation, particularly in the UV-B range (280 ...
Kim Valenta +7 more
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