Results 21 to 30 of about 14,763 (168)

Elementary vectors and conformal sums in polyhedral geometry and their relevance for metabolic pathway analysis

open access: yesFrontiers in Genetics, 2016
A fundamental result in metabolic pathway analysis statesthat every flux mode can be decomposed into a sum of elementary modes.However, only a decomposition without cancelations is biochemically meaningful,since a reversible reaction cannot have ...
Stefan eMüller, Georg eRegensburger
doaj   +1 more source

Geologic, seasonal, and atmospheric predictors of indoor home radon values

open access: yesEnvironmental Research: Health, 2023
Exposure to tobacco smoke and radon cause lung cancer. Radioactive decay of naturally occurring uranium in bedrock produces radon. Seasonality, bedrock type, age of home, and topography have been associated with indoor radon, but the research is mixed ...
Ellen J Hahn   +5 more
doaj   +1 more source

The Laboratory of Natural Radiation (LNR) – a place to test radon instruments under variable conditions of radon concentration and climatic variables

open access: yesNukleonika, 2016
The publication of the new European Union Basic Safety Standards represents a remarkable milestone in the field of radiological protection in terms of adding radon exposure to this framework.
Santiago Quindós Poncela Luis   +8 more
doaj   +1 more source

Recent Progress in Radon Metrology at IFIN-HH, Romania

open access: yesAtmosphere, 2022
The practical implementation of the European Council Directive no. 2013/59/EURATOM in Romania requires reliable indoor measurements of the radon (222Rn) activity concentration in air.
Aurelian Luca   +11 more
doaj   +1 more source

Nanoaerosols Including Radon Decay Products in Outdoor and Indoor Air at a Suburban Site

open access: yesJournal of Toxicology, 2012
Nanoaerosols have been monitored inside a kitchen and in the courtyard of a suburban farmhouse. Total number concentration and number size distribution (5–1000 nm) of general aerosol particles, as measured with a Grimm Aerosol SMPS+C 5.400 instrument ...
Mateja Smerajec, Janja Vaupotič
doaj   +1 more source

Contribution of Radon and Radon Daughters to Respiratory Cancer [PDF]

open access: yesEnvironmental Health Perspectives, 1986
This article reviews studies on the contribution of radon and radon daughters to respiratory cancer and proposes recommendations for further research, particularly a national radon survey. The steady-state outdoor radon concentration averages 200 pCi/m3, and indoor levels are about 4 times higher.
N, Harley   +5 more
openaire   +2 more sources

Radon and Neoplasms

open access: yesToxics, 2023
Radon is a carcinogenic factor, but the effects of the potential carcinogenicity of radon progeny on the human body during the prenatal period have not yet been explored. Based on data regarding the half-lives of radon-222 and radon-220 and their progeny, this paper considers their potential effects on the human body in the prenatal period.
openaire   +3 more sources

Mutagenicity of radon and radon daughters [PDF]

open access: yes, 1991
The objective of our research is to investigate the dose-response relationship of the lethal and mutagenic effects of exposure of cells to radon and its decay products. Dose rate dependence and the nature of the DNA lesion will be studied, using the thymidine kinase and HPRT loci to measure mutation frequency.
openaire   +2 more sources

The Effect of Nano-Particle Formation on Radiation Resistance of Phosphate Glasses Potentially Suitable for Nuclear Waste Immobilization

open access: yesEurasian Chemico-Technological Journal, 2010
The effect of nano-particles on the radiation resistance of glasses potentially suitable for nuclear waste immobilization was investigated. The glasses were investigated by means of EPR, UV-visible optical spectroscopy, RBS and TEM.
L. D. Bogomolova   +2 more
doaj   +1 more source

Radon in caves

open access: yesInternational Journal of Speleology, 2005
The physical characteristics of radon are reported as well as its sources,the transport in rock and its behaviour in caves. Then,the instruments,both active and passive, used for the measurement of radon concentration are discussed by taking into accounttheir respective advantages and disadvantages for the use in the cave environment.
openaire   +4 more sources

Home - About - Disclaimer - Privacy