Results 41 to 50 of about 17,459 (196)

Permafrost Thaw Dynamics Drive the Regime Shifts of Iron‐Bound Organic Carbon Sequestration in the East Siberian Arctic Shelf

open access: yesGeophysical Research Letters, Volume 53, Issue 1, 16 January 2026.
Abstract In the changing Arctic, permafrost thaw is shifting from gradual to abrupt. Although iron‐bound organic carbon (OC‐FeR) critically modulates permafrost carbon‐climate feedbacks, its decadal‐scale variability and response to this regime shift remain poorly constrained.
Jiazong Du   +9 more
wiley   +1 more source

Low background techniques for the Borexino nylon vessels [PDF]

open access: yes, 2004
Borexino is an organic liquid scintillator underground detector for low energy solar neutrinos. The experiment has to satisfy extremely stringent low background requirements.
Pocar, A.
core   +3 more sources

Environmental Controls on the Cycling of Fe and Mn in Patagonian Fjord Systems

open access: yesJournal of Geophysical Research: Biogeosciences, Volume 131, Issue 1, January 2026.
Abstract Fjord sediments are important reservoirs and conduits of potentially bioavailable iron (Fe) and manganese (Mn). Both elements are critical to life, serving as key reactants in metabolic pathways, and play an important role in the reactivity and burial of organic carbon.
L. Piret   +3 more
wiley   +1 more source

Distribution and enrichment of 210Po and210Pb in the environment of Mangalore, Southwest Coast of India

open access: yesRadiation Protection and Environment, 2019
The article deals with the distribution and enrichment of210Po and210Pb in soil samples of Mangalore, Southwest Coast of India. The soil samples collected from the region were analyzed for210Po and210Pb activity using radiochemical analytical technique ...
V Prakash   +3 more
doaj   +1 more source

Results from the Super Cryogenic Dark Matter Search (SuperCDMS) experiment at Soudan [PDF]

open access: yes, 2017
We report the result of a blinded search for Weakly Interacting Massive Particles (WIMPs) using the majority of the SuperCDMS Soudan dataset. With an exposure of 1690 kg days, a single candidate event is observed, consistent with expected backgrounds ...
Agnese, R.   +103 more
core   +3 more sources

Quantifying Atmospheric Humidity in the Western Mediterranean During the Iron Age and the Roman Era

open access: yesGeophysical Research Letters, Volume 52, Issue 24, 28 December 2025.
Abstract Atmospheric moisture is a key hydroclimatic parameter that influenced ancient societies, agriculture, and ecosystems. However, quantitative constraints on pre‐industrial atmospheric humidity values are rarely available. Here, the triple oxygen (17O/16O and 18O/16O) and hydrogen (2H/1H) isotope compositions of lacustrine gypsum are used to ...
Fernando Gázquez   +9 more
wiley   +1 more source

Atmospheric radioactive nuclide deposition on the coast of the Maowei Sea, northern Beibu Gulf, China

open access: yesFrontiers in Marine Science, 2023
The natural radioisotopes 7Be, 210Pb, and 210Po, with different half-lives, are all particle-reactive and serve as natural tracers to study sources and transportation of sediments, sedimentation rates, and sediment chronology.
Xilong Wang   +8 more
doaj   +1 more source

210Pb Ingestion in Akita City, Japan.

open access: yesRADIOISOTOPES, 1992
Ingestion of 210Pb in Akita City, northern Japan was studied with food category samples and total diet samples by means of a low energy photon spectrometry. Results for food category samples revealed that the contribution of marine products to total 210Pbingestion was the largest.
Shun'ichi HISAMATSU   +3 more
openaire   +2 more sources

Ostracod Genetic Variability in Response to Lake Level‐Driven Salinity Dynamics in Nam Co, Central Tibetan Plateau, in the Past Two Millennia

open access: yesEcology and Evolution, Volume 15, Issue 12, December 2025.
Using sedimentary ancient DNA metabarcoding on a two‐millennia sediment core from Nam Co (Tibetan Plateau), the study reconstructs ostracod community shifts and genetic diversity in response to hydrological and climatic changes. Species richness peaked during moister intervals, while alternating dominance during the Medieval Climate Anomaly and Little ...
Katharina Dulias   +12 more
wiley   +1 more source

Baseline measurements of 210Po and 210Pb in the seafood of Kasimedu fishing harbour, Chennai, South East Coast of India and related dose to population

open access: yesEnvironmental Chemistry and Ecotoxicology, 2019
The Bioaccumulation studies of natural radionuclides such as 210Po & 210Pb was carried out to explain the radiation levels of Kasimedu fishing harbour, Chennai, southeast coast of India. Abiotic components like water, sediment and biotic components (Fish
M. Saiyad Musthafa   +2 more
doaj   +1 more source

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