Results 11 to 20 of about 37,238 (307)

Sunscreens: Time to think beyond UV rays

open access: yesPigment International, 2018
It has been known to us that solar radiation contributes to photoaging. Until recently, it was thought to be due to ultraviolet rays alone. However, a growing number of evidence confirms that visible and infrared (IR) rays also contribute to extrinsic ...
Chitralekha Keisham   +2 more
doaj   +2 more sources

Report on some Biological Responses to High Electric Fields and Indirect Action of Ultraviolot Rays [PDF]

open access: yesActa Medica Iranica, 1960
The similarities of effects produced hy radiation, electric field, ultraviolet rays and ozone on the platelet and blood corpuscles suggest the presence of a common factor. It is assumed that the effects of radiation is due the hydroperoxyl radical and we
Kamal Djanab
doaj   +3 more sources

Comparative Evaluation of Ultraviolet and Visible Light Transmittance through Prescriptive Ophthalmic Minus Lenses

open access: yesNovelty in Biomedicine, 2014
Background: Wearing spectacles is the most common approach in correcting the refractive errors worldwide. Due to harmful effects of overexposure to solar ultraviolet radiations, the usage of multi-layer coatings in ophthalmic lenses has recently been ...
Mohammadreza Nazari   +3 more
doaj   +3 more sources

Emerging Strategies to Protect the Skin from Ultraviolet Rays Using Plant-Derived Materials. [PDF]

open access: yesAntioxidants (Basel), 2020
Sunlight contains a significant amount of ultraviolet (UV) ray, which leads to various effects on homeostasis in the body. Defense strategies to protect from UV rays have been extensively studied, as sunburn, photoaging, and photocarcinogenesis are ...
Boo YC.
europepmc   +2 more sources

Ultraviolet-Assisted Modified Delignified Wood with High Transparency

open access: yesApplied Sciences, 2022
The substrate of solar cells with high haze, transparent, flexible, green and low coatings will be needed in the future. This paper reports a method for ultraviolet-assisted delignification of wood in an alkaline solution environment to improve the ...
Xiaoli Chen   +7 more
doaj   +1 more source

Reagent composition and procedures for ultraviolet rays and color methods.

open access: yes, 2022
Reagent composition and procedures for ultraviolet rays and color methods.
Kazu Hatanaka (13104442)   +9 more
core   +1 more source

Operation of a free-electron laser from the extreme ultraviolet to the water window [PDF]

open access: yes, 2007
We report results on the performance of a free-electron laser operating at a wavelength of 13.7 nm where unprecedented peak and average powers for a coherent extreme-ultraviolet radiation source have been measured.
T. Jezynski   +731 more
core   +1 more source

Sunburns among beachgoers in the northern coast of Peru: frequency and factors associated [PDF]

open access: yesPeerJ, 2021
Background Overexposure to ultraviolet (UV) radiation has increased skin cancer incidence and the risk of sunburns, especially during the summer months.
Eliana L. Fernandez-Quiroz   +5 more
doaj   +2 more sources

Possible values of UV index in Serbia [PDF]

open access: yesSrpski Arhiv za Celokupno Lekarstvo, 2008
INTRODUCTION UV Index is an indicator of human exposure to solar ultraviolet (UV) rays. The numerical values of the UV Index range from 1-11 and above. There are three levels of protection against UV radiation; low values of the UV Index - protection is ...
Letić Milorad
doaj   +1 more source

Formation of fatty acid esterified vitamin D3 in rat skin by exposure to ultraviolet radiation

open access: yesJournal of Lipid Research, 1983
The formation of fatty acid esters of vitamin D3 was demonstrated in rat skin exposed to artificial ultraviolet rays by using multi-dimensional high-performance liquid chromatography, ultraviolet spectrophotometry, and gas-liquid chromatography-mass ...
K Takada
doaj   +1 more source

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