Results 21 to 30 of about 37,238 (307)

Ultraviolet radiation emitted by lamps, TVs, tablets and computers: are there risks for the population? [PDF]

open access: yesAnais Brasileiros de Dermatologia, 2015
The frequent human exposure to various types of indoor lamps, as well as other light sources (television monitors, tablets and computers), raises a question: are there risks for the population?
Ida Alzira Gomes Duarte   +2 more
doaj   +2 more sources

Upper-Room Ultraviolet Light and Negative Air Ionization to Prevent Tuberculosis Transmission [PDF]

open access: yes, 2009
Background Institutional tuberculosis (TB) transmission is an important public health problem highlighted by the HIV/AIDS pandemic and the emergence of multidrug- and extensively drug-resistant TB.
Ticona, E.   +70 more
core   +1 more source

The effects of tanning on health

open access: yesJournal of Education, Health and Sport, 2017
Ultraviolet (UV) ray exposure can lead to serious consequences to a person(s) health. Consequences include skin pigmentation and can also lead to cancer. Not everyone however is aware of the risks involved with exposure to these rays.
Irena Puszkarz   +2 more
doaj   +3 more sources

THE ULTRAVIOLET RAYS IN THE TREATMENT OF CHILBLAIN [PDF]

open access: yesJournal of the American Medical Association, 1919
Chilblain, or erythema pernio, is a form of erythema that appears in the late fall and winter months in individuals with a poor peripheral circulation and a disturbed vasomotor mechanism. In the mild cases there is merely a slight dusky or dark red discoloration of the regions with feeble peripheral circulation, as the tip of the nose, the lobes of the
openaire   +2 more sources

Do the polyphenolic compounds from natural products can protect the skin from ultraviolet rays?

open access: yesResults in Chemistry, 2022
Excessive exposure to the sun is a major cause that augment the skin cancer, erythema, edema, abnormal pigmentation and finally suppress the immune system.
Sara Ghazi
doaj   +1 more source

Correlation between color method and ultraviolet rays method for [C3-C6] assay in the saliva and calibration curves for C4 obtained by these methods.

open access: yes, 2022
(A) Correlation between the vales obtained by color method and ultraviolet rays method for [C3-C6] standards. Since the color method is highly sensitive, saliva was diluted 20-fold with physiological saline for measuring.
Kazu Hatanaka (13104442)   +9 more
core   +1 more source

Latest results on Jovian disk X-rays from XMM-Newton

open access: yes, 2007
We present the results of a spectral study of the soft X-ray emission (0.2–2.5 keV) from low-latitude (‘disk’) regions of Jupiter. The data were obtained during two observing campaigns with XMM-Newton in April and November 2003.
Waite Jr., J. H.   +12 more
core   +1 more source

Some of the uses of ultra-violet rays in dermatology

open access: yesSouth African Journal of Physiotherapy, 1953
No abstract available.
R. M.B MacKenna, T. Wareham
doaj   +1 more source

The influence of galactic cosmic rays on ion-neutral hydrocarbon chemistry in the upper atmospheres of free-floating exoplanets

open access: yes, 2014
The authors highlight financial support of the European Community under the FP7 by an ERC starting grant.Cosmic rays may be linked to the formation of volatiles necessary for prebiotic chemistry.
P. B. Rimmer   +5 more
core   +1 more source

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