Results 41 to 50 of about 352,063 (215)

National mapping survey of indoor radon levels in the Maltese Islands (2010-2011) [PDF]

open access: yes, 2013
Aim: To conduct a national geographically based survey to determine the distribution of the mean annual indoor radon gas concentration levels in dwellings in the Maltese Islands and map these levels; to identify any areas with annual mean indoor radon ...
Formosa, Saviour   +5 more
core  

Measurement and modeling of indoor radon concentrations in residential buildings [PDF]

open access: yesEnvironmental Health and Toxicology, 2018
Radon, the primary constituent of natural radiation, is the second leading environmental cause of lung cancer after smoking. To confirm a relationship between indoor radon exposure and lung cancer, estimating cumulative levels of exposure to indoor radon
Ji Hyun Park   +4 more
doaj   +1 more source

Integrated Alpha–Gamma Radiation Exposure From Natural Radionuclides in Cement and Gypsum Production: Implications for Occupational Lung Cancer Risk

open access: yesEnvironmental Toxicology, EarlyView.
ABSTRACT Natural radionuclides in cement and gypsum production materials pose significant risks of occupational radiation exposure that are not well documented in Iraqi Kurdistan. This study quantifies alpha and gamma radiation levels from naturally occurring radioactive materials, specifically 222Rn, 238U, 232Th, and 40K, in cement and gypsum samples ...
Adil M. Hussien   +4 more
wiley   +1 more source

General model for estimation of indoor radon concentration dynamics

open access: yes, 2021
A known relationship exists between high radon concentrations and lung cancer, and therefore, the indoor radon quantification is important, and it is beneficial to have a model to estimate indoor concentration.
Fuente Merino, Ismael   +9 more
core   +1 more source

Indoor radon levels in apartments of Erbil city by using long and short term techniques

open access: yesTikrit Journal of Pure Science, 2023
Inhalation of radon (222Rn) and daughter products are a major source of natural radiation exposure. Measurement of indoor radon concentrations were performed in the two hundred rooms for the 25 apartments in Erbil city by using long term technique (CR ...
Zakariya A. Hussein   +4 more
doaj   +1 more source

Environmental Changes and Their Effect on the Airway Microbiome: Implications for Airway Diseases

open access: yesAllergy, EarlyView.
ABSTRACT Obstructive airway diseases, including asthma and chronic obstructive pulmonary disease (COPD), represent the two major chronic airway inflammatory diseases. In both conditions, the airways are exposed to a variety of microbial and environmental stimuli.
Georgios Rentzos   +10 more
wiley   +1 more source

Wave Tracing: Generalizing The Path Integral To Wave Optics

open access: yesComputer Graphics Forum, EarlyView.
Abstract Modeling the wave nature of light and the propagation and diffraction of electromagnetic fields is crucial for the accurate simulation of many phenomena, yet wave simulations are significantly more computationally complex than classical ray‐based models.
Shlomi Steinberg, Matt Pharr
wiley   +1 more source

Assessment of Radon and Naturally Occurring Radionuclides in the Vredefort Meteorite Crater in South Africa

open access: yesAtmosphere, 2023
The concentric impact rings of the Vredefort Crater contain rocks with elevated uranium concentrations resulting from the geological signature of a meteoric impact.
Rikus le Roux, Jacques Bezuidenhout
doaj   +1 more source

Indoor radon measurements in areas of northern Greece with relatively high indoor radon concentrations

open access: yesRadiation Protection Dosimetry, 2009
Indoor radon concentrations were measured in 77 schools of the prefecture of Xanthi in northern Greece. The arithmetic mean radon concentration is 231 Bq m(-3) with a range between 45 and 958 Bq m(-3). Thirty five schools have mean radon concentration above 200 Bq m(-3) and nine schools have mean radon concentration above 400 Bq m(-3).
Clouvas, A.   +4 more
openaire   +3 more sources

Survey on differential estimators for 3d point clouds

open access: yesComputer Graphics Forum, EarlyView.
Abstract Recent advancements in 3D scanning technologies, including LiDAR and photogrammetry, have enabled the precise digital replication of real‐world objects. These methods are widely used in fields such as GIS, robotics, and cultural heritage. However, the point clouds generated by such scans are often noisy and unstructured, posing challenges for ...
Léo Arnal–Anger   +4 more
wiley   +1 more source

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