Results 41 to 50 of about 691 (166)

Tropicalization Enhances Mangrove Methane Emissions to the Atmosphere

Geophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract Organic‐rich mangrove soils release CH4, partially offsetting the climate benefits of high organic carbon sequestration. However, the local and global drivers and variability of mangrove CH4 emissions remain poorly understood. Here, we quantify water‐atmosphere CH4 emissions over hourly, daily, and weekly time scales in an Australian mangrove ...
Xiaogang Chen, Isaac R. Santos, Tristan McKenzie, Faming Wang, Gloria M. S. Reithmaier, Luiz C. Cotovicz Jr, Ceylena Holloway, Yvonne Y. Y. Yau, Shengjie Hu, Ling Li   +9 more
wiley   +1 more source

Measurement of radon and thoron concentrations of soil- gas in Al-Kufa city using RAD-7 detector

Iraqi Journal of Physics, 2021
This work represents the set of measurements of radon and thoron concentrations levels of soil-gas in Al-Kufa city in Iraq using electric Radon meter (RAD-7). Radon and thoron concentration were measured in soil-gas in 20 location for three depth of (50,
Ali A. Al-Hamidawi
doaj  

Geospatial examination of tap water pollution in residential areas of the Al-Abbasiya neighborhood, Najaf, Iraq [PDF]

E3S Web of Conferences
The present study measured radon (222Rn) levels in the drinking water obtained from thirty houses distributed within Al-Abbasiya District, Najaf City, Iraq to estimate public health risk and adherence to safety standards set by international ...
Ridha Raya Fadhil, Abbas Shurooq Lafta, Matar Lina Majeed, Yousif Saja Nafea, Alhiti Laith S.   +4 more
doaj   +1 more source

Measurement of Radon Activity Concentration in Soils Samples of Shaqlawa Region in Erbil City/ Iraqi Kurdistan Using RAD7 Detector

Zanco Journal of Pure and Applied Sciences, 2023
The radon concentration of soil samples from several places in the Shaqlawa city/Iraqi Kurdistan area has been determined by using RAD7detector. The soil samples are gathered from different geological formations. Maximum and minimum radon concentrations
Yusra Mala Yousif Muhammad, Preshan Khder Fatah, Sardar P. Yaba   +2 more
doaj   +1 more source

Overlooked seasonal groundwater nutrient fluxes rival anthropogenic point sources across a variable land‐use tidal river

Limnology and Oceanography, Volume 70, Issue 12, Page 3815-3831, December 2025.
Abstract Understanding groundwater–surface water connectivity in tidal freshwater zones is essential for managing ecosystems within the riverine–estuarine continuum. Groundwater discharge is a key source of dissolved nutrient loads that can lead to eutrophication, deoxygenation, and other ecosystem imbalances in coastal environments.
James A. Padilla‐Montalvo, Douglas R. Tait, Michael J. Reading, Benjamin T. Stewart, Angus Ferguson, Iremar Fernandez‐Vazquez, James Z. Sippo, Shivanesh Rao, Mitch Call, Christopher Ralph, Josh Guyat, Jenny Rogers, Merran Griffith, Damien T. Maher   +13 more
wiley   +1 more source

Radon Gas Risk Indices in Water on Fractured Basement of Ayetoro Housing Scheme, Oyo [PDF]

Physics Access
Radon gas, a naturally occurring radioactive element, presents significant health risks, particularly in areas with fractured basement geology, where subsurface characteristics can elevate its concentration.
Emmanuel A Oni, Johnson A Abilawon, Oluwaseun O Oloyede, Abraham A Aremu, Olukunle O Oladapo, Temitayo A Olajide, Mustapha K Lawal, Paul S Ayanlola, Olatunde M Oni   +8 more
doaj   +1 more source

Using 222Rn to Determine Groundwater Velocities in a Braidplain Aquifer

Hydrological Processes, Volume 39, Issue 10, October 2025.
This study assesses bank infiltration from a braided river. We find a small change in infiltration velocity for high versus low river flow periods, and a spatial variation of groundwater velocities linked to paleochannels. Consideration of more realistic groundwater flow geometries demonstrates that groundwater residence times based on conventional ...
Christy W. Songola, Leanne K. Morgan, Eddie W. Banks, Crile Doscher, Ian Cartwright   +4 more
wiley   +1 more source

Research on the method to measure the average radon exhalation rate of room inner surface

Nuclear Engineering and Technology
In high-rise buildings, radon from building materials is one of the main sources of indoor radon. People spend an average of 80 % of their time indoors every day.
Hongbo Xu, Fen Lin, Shuaibin Liu, Huiying Li, Zhongkai Fan, Ruomei Xie, Xinyue Yang, Xianfa Mao, Shicheng Luo, Chenxi Zu, Feng Xiao, Jia Liu, Yi Liu, Haoyu You, Hao You, Cheng Luo, Hongzhi Yuan, Yanliang Tan   +17 more
doaj   +1 more source

The yeast RAD7 and RAD16 genes are required for postincision events during nucleotide excision repair. In vitro and in vivo studies with rad7 and rad16 mutants and purification of a Rad7/Rad16-containing protein complex.

The Journal of biological chemistry, 1998
In eukaryotes, nucleotide excision repair (NER) is a complex reaction requiring multiple proteins. In the yeast Saccharomyces cerevisiae, two of these proteins, Rad7 and Rad16, are specifically involved in the removal of lesions from transcriptionally silent regions of the genome in vivo. Extracts prepared from rad7 or rad16 mutant cells are deficient,
S H, Reed, Z, You, E C, Friedberg
openaire   +1 more source

Drivers of dissolved organic matter processing in subterranean estuaries

Limnology and Oceanography Letters, Volume 10, Issue 4, Page 536-546, August 2025.
Abstract Subterranean estuaries (i.e., seawater‐fresh groundwater mixing zones at coastal aquifers) are highly reactive boundaries between continental groundwater and coastal surface seawater. Because particulate organic matter is retained in shallow sediments, internal microbial transformations rely on dissolved organic matter (DOM) supply and ...
Elisa Calvo‐Martin, Xosé Antón Álvarez‐Salgado, María José Pazó Fernández, Vanesa Vieitez Dos Santos, J. Severino P. Ibánhez   +4 more
wiley   +1 more source