Results 21 to 30 of about 126,132 (300)

Are Nonprescription Sunglasses in Ethiopian Market Protective for Ultraviolet Radiation?

open access: yesClinical 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
doaj  

ULTRAVIOLET RADIATION DISINFECTION FOR SARS-COV-2

open access: yesInternational Journal of Infectious Diseases, 2023
Intro: COVID-19 pandemic affected the entire globe and resulted in millions of deaths. Besides human-to-human respiratory droplets transmission, contact with aerosol-infected surfaces is an important way of transmitting this virus.
C.W. Liu, P.Y. Liu
doaj   +1 more source

Solar ultraviolet radiation, shade profile and heat index survey report: New South Wales playgrounds (2020 - 2021) [PDF]

open access: yes, 2021
This report was prepared for the New South Wales Cancer Institute. It collates and summarises the measured solar ultraviolet radiation protection factor, the seasonal shade profile and onsite heat index collected from regional parks across New South ...
Downs, Nathan J.
core  

Development of phytocosmeceuticals protective products with promoting adaptation to ultraviolet radiation and induction of melanogenesis

open access: yesФотобіологія 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
doaj   +1 more source

Metal-rich stars are less suitable for the evolution of life on their planets

open access: yesNature 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
doaj   +1 more source

The Asp84GIu variant of the melanocortin 1 receptor (MC1R)is associated with melanoma [PDF]

open access: yes, 1996
Melanocyte stimulating hormone (MSH) plays an important role in determining the cutaneous response to ultraviolet radiation and may also influence melanoma progression.
Thody, Anthony J.   +10 more
core   +1 more source

Determination of the solar ultraviolet radiation in tree shade [PDF]

open access: yes, 1999
[Abstract]: The experiment described in this paper provides students the opportunity to study the Physics of electromagnetic radiation and its interaction with the physical environment and also illustrates that Physics exists outside the school ...
Kimlin, Michael G., Parisi, Alfio
core   +2 more sources

Finding an Integrated Ultraviolet Radiation Index Using Fuzzy Logic Techniques [PDF]

open access: yes, 2023
The present study applies fuzzy logic techniques to find an integrated ultraviolet radiation index for Cuenca-Ecuador. This index integrates information on meteorological variables and ultraviolet rays, whose data were provided by the Research Department
Cedillo Orellana, Irene Priscila
core   +1 more source

The behaviour of Rhizobium bacteriophages during and after exposure to ultraviolet radiation [PDF]

open access: yes, 1953
SUMMARY: After inactivation by ultraviolet radiation, particles of two Rhizobium bacteriophages interfered temporarily with the multiplication of active particles of the homologous phage, in liquid cultures of their respective host bacteria.
Kleczkowski, J., Kleczkowski, A.
core   +1 more source

Ultraviolet radiation changes plant color

open access: yesBMC 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
doaj   +1 more source

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