Results 51 to 60 of about 716 (178)
Paleoceanography and Paleoclimatology, Volume 40, Issue 6, June 2025.Abstract Assessing the preservation state of calcium carbonate microfossils preserved in deep‐sea sediments allows us to understand the impact of ocean chemistry on deep‐sea carbonate distribution and provides key information on potential biases affecting microfossil‐based proxies applied in the geological past.
Michael B. Adebayo +3 more
wiley +1 more source
Radon-thoron measurements in air and soil from some districts of northern part of India [PDF]
Nuclear Technology and Radiation Protection, 2015 Radon, thoron and their progenies in the indoor environment are considered as one of the health hazards. The alpha emitting nature of these gases made it possible to detect in indoor environment with the help of nuclear track detector techniques.
Mann Nisha +3 more
doaj +1 more source
CvdN Equilibrium and Share Equilibrium in Local Public Good Economies
Journal of Public Economic Theory, Volume 27, Issue 2, April 2025.ABSTRACT CvdN equilibrium and share equilibrium are both extensions of the cost‐shares‐based ratio equilibrium for global public good economies to local public good economies. CvdN equilibrium and share equilibrium differ in terms of the stability requirements for equilibrium jurisdictions.
Nathan W. Chan, Anne van den Nouweland
wiley +1 more source
Radiation Protection and Environment, 2018 The major contribution of natural background radiation exposure comes from radon, thoron, and their progeny. The activity concentration of these radionuclides depends on various factors, and the concentration level varies from place to place.
K Nadira Mahamood, V Prakash
doaj +1 more source
Indoor Air, Volume 2025, Issue 1, 2025.Exposure to radon‐222 (222Rn) and its decay products poses a significant public health risk. 222Rn tends to accumulate in poorly ventilated areas, underground spaces, and caves, which justifies the existence of international reference levels for its annual average indoor concentrations.
Grzegorz Oloś +2 more
wiley +1 more source
A Device for Measurement of Thoron in the Breath
Health Physics, 1963 A device was developed to measure thoron in the breath of human subjects. It depends upon the adsorption of thoron on a cooled, charcoal particle covered plate which is adjacent to a ZnS coated lucite disc seen by a 5-in.-dia. photomultiplier tube. In its present form it will measure thoron referred to the patient's mouth with a sensitivity of 0.7 ...
J B, HURSH, A, LOVAAS
openaire +4 more sources
Exploring Seasonal Variation of Indoor Radon in Campania: Preliminary Findings
Indoor Air, Volume 2025, Issue 1, 2025.This study focuses on the indoor radon gas monitoring in 30 residences in Campania to evaluate seasonal variability. Approximately 570 CR‐39 solid‐state detectors were employed. Measurements were taken monthly, quarterly, semiannually, and annually, starting in October 2022 and ending in September 2023.
Filomena Loffredo +3 more
wiley +1 more source
Indoor Air, Volume 2025, Issue 1, 2025.The present study was aimed at assessing the concentrations of Rn and Th gases in the indoor air of residential homes in urban and rural areas near the active faults in Yazd province. Sampling and measurements were performed for 6 months (autumn and winter) in 2024 using the RAD7 device.
Samira Jafari Nodushan +5 more
wiley +1 more source
Size normalizing planktonic Foraminifera abundance in the water column
Limnology and Oceanography: Methods, Volume 22, Issue 10, Page 701-719, October 2024.Abstract Planktonic Foraminifera have been collected from the water column with different plankton sampling devices equipped with nets of various mesh sizes, which impedes direct comparison of observed quantifications. Here, we use data on the community size structure of planktonic Foraminifera to assess the impact of mesh size on the measured ...
Sonia Chaabane +14 more
wiley +1 more source
Journal of Geophysical Research: Biogeosciences, Volume 129, Issue 9, September 2024.Abstract Diatom communities preserved in sediment samples are valuable indicators for understanding the past and present dynamics of phytoplankton communities, and their response to environmental changes. These studies are traditionally achieved by counting methods using optical microscopy, a time‐consuming process that requires taxonomic expertise ...
Camille Godbillot +7 more
wiley +1 more source