Results 81 to 90 of about 17,476 (194)

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

Geophysical 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, Claudia Voigt, Aurora Castillo‐Baquera, Antonio García‐Alix, Gonzalo Jiménez‐Moreno, Francisco Jíménez‐Espejo, Lucía Martegani, Marta Rodrigo‐Gámiz, Alejandro Jiménez‐Bonilla, Miguel Rodríguez‐Rodríguez   +9 more
wiley   +1 more source

Sigara tütününün doğal ve yapay radyoaktivitesinin belirlenmesi

Sakarya Üniversitesi Fen Bilimleri Enstitüsü Dergisi, 2016
Sigara tütünündeki doğal ve yapay radyoaktivite konsantrasyonları %20 rölatif verimli n-tipi HPGe gama spektrometre kullanılarak belirlenmiştir.226Ra, 232Th, 40K, 210Pb ve 137Csradyoaktivite konsantrasyonları ölçülmüştür.
Yusuf Ağuş
doaj   +1 more source

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

Ecology 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, Sten Anslan, Luis Victoria Nogales, Anja Schwarz, Wengang Kang, Paula Echeverría‐Galindo, Nicole Börner, Ping Peng, Yongqin Liu, Keshao Liu, Bernd Wünnemann, Junbo Wang, Antje Schwalb   +12 more
wiley   +1 more source

Surface activity levels of 7Be, 210Pb, 40K and other atmospheric species and teh influence of African air mass intrusions [PDF]

, 2015
The high frequency of mineral dust plumes blown across from Africa to the Iberian Peninsula significantly affects dust levels in the atmosphere. Therefore, it is of great interest to analyse and quantify the African dust loading over the region due to ...
Cabello, María, Cañada, Pedro, Cañete, Sergio, Dueñas-Buey, Mª Concepción, Gordo, Elisa, Liger-Pérez, Esperanza, Perez-Martinez, Manuel   +6 more
core  

Abrupt changes in alpha decay systematics as a manifestation of collective nuclear modes

, 2010
An abrupt change in $\alpha$ decay systematics around the N=126 neutron shell closure is discussed. It is explained as a sudden hindrance of the clustering of the nucleons that eventually form the $\alpha$ particle. This is because the clustering induced
A. N. Andreyev, C. Qi, D. N. Poenaru, H. Geiger, J. O. Rasmussen, M. Huyse, P. Van Duppen, R. A. Wyss, R. J. Liotta   +8 more
core   +1 more source

Century‐scale resilience of stored seagrass blue carbon

Limnology and Oceanography Letters, Volume 10, Issue 6, Page 990-998, December 2025.
Abstract Blue carbon sequestration in coastal ecosystems is only relevant to climate change mitigation and carbon offset crediting if the carbon is taken out of circulation for at least a century. Here, we examined sediment cores, up to 2.2 m deep, collected in modern Zostera marina seagrass meadows in Mid‐Atlantic lagoons in Virginia, USA.
Peter Berg, Renee M. Hebert, Marion A. McKenzie, Luke D. Groff, Charlotte Wiman, Peter Garneau, Jessica Gould, Sophia Kuzminski, Karen J. McGlathery, Samuel Muñoz, A. Randall Hughes, Aron Stubbins, Lauren E. Miller   +12 more
wiley   +1 more source

New experimental limits on the alpha decays of lead isotopes

, 2012
For the first time a PbWO4 crystal was grown using ancient Roman lead and it was run as a cryogenic detector. Thanks to the simultaneous and independent read-out of heat and scintillation light, the detector was able to discriminate beta/gamma ...
Beeman, J. W., Bellini, F., Cardani, L., Casali, N., Di Domizio, S., Fiorini, E., Gironi, L., Nagorny, S. S., Nisi, S., Orio, F., Pattavina, L., Pessina, G., Piperno, G., Pirro, S., Previtali, E., Rusconi, C., Tomei, C., Vignati, M.   +17 more
core   +1 more source

Organic Carbon Fluxes on Seasonal to Decennial Timescales in Patagonia's Largest River‐Fjord System

Global Biogeochemical Cycles, Volume 39, Issue 12, December 2025.
Abstract Fjord sediments are global sinks of organic carbon (OC), contributing to the long‐term storage of atmospheric CO2. Despite this recognition, the transfer and burial of OC in fjord sediments are still poorly quantified and suffer from a sampling bias toward distal environments where marine OC is dominant.
S. Hage, S. Bertrand, B. Amann, B. Reid, E. Vandekerkhove   +4 more
wiley   +1 more source

Radiometric dating of sediment records in European mountain lakes

Journal of Limnology, 2000
Sediment cores from seven European mountain lakes collected as part of a study of palaeolimnogical records of climate change (the MOLAR project) were dated radiometrically by 210Pb.
Peter G. APPLEBY
doaj   +1 more source

Radon Daughter Plate-out onto Teflon

, 2017
Radiopure materials for detector components in rare event searches may be contaminated after manufacturing with long-lived $^{210}$Pb produced by the decay of atmospheric radon. Charged radon daughters deposited on the surface or implanted in the bulk of
Frels, Therese, Miller, Eric H., Morrison, Eric S., Schnee, Richard W., Street, Joseph   +4 more
core   +1 more source