Results 81 to 90 of about 34,670 (250)

Evidence From Microscopy and U–Pb Geochronology as a Clue to the Influence of the Cretaceous Magmatism in the Diagenesis of Pre‐Salt Carbonate Reservoirs in the Santos Basin (Brazil)

Geological Journal, EarlyView.
Carbonates from Santos Basin revealed U–Pb ages correlated with basalt ages (A), suggesting that they were formed during magmatic events. These events placed hot CO2 in the reservoir, which, when mixed with carbonate‐rich cold water (B), led to thermal convection, enabling the formation of the U contained in the carbonates.
Marco António Ruivo de Castro e Brito, Cristiano Leite Sombra, Davy Raeder Brandão, Cleverson Guizan Silva, Sidney Luiz de Matos Mello, Eugênio Vaz dos Santos Neto, Rui Jorge Fernandes Baptista, Ramsés Capilla, Luiz Antônio Pierantoni Gambôa   +8 more
wiley   +1 more source

Activity concentration and transfer of 226Ra, 232Th, and 40K from soil-to-crops in Irele Local Government Area of Ondo State, Southwestern Nigeria

Scientific African
The activity concentration of radionuclides in soil and crop samples obtained from Irele local government area in Ondo State, Southwestern Nigeria, was evaluated using a 760 mm x 760 mm NaI(Tl) gamma-ray detector system of model 8075, and resolution of 8 
Naven Chetty, Abiola Olawale Ilori
doaj   +1 more source

Lymph‐based liquid biopsy: Current progress and future potential

Interdisciplinary Medicine, EarlyView.
Recent evidence under the revised Starling principle indicates that lymph‐based liquid biopsies may offer superior diagnostic performance over blood‐based counterparts in certain clinical scenarios, such as early‐stage solid tumor detection. Currently, various biomarkers within the lymphatic system show significant diagnostic potential for a range of ...
Dongdong Liu, Leheng Cheng, Xiaolin Hu, Sergio Bernardini, Hong Zhang, Ling Zhu, Yang Luo   +6 more
wiley   +1 more source

Application and Experimental Substantiation of the Radioecological Model for Prediction in Behavior ⁹⁰Sr in Cultivated Soil-Crop System: A Case Study of Two Experimental Agricultural Fields

Plants
The radioactive fission product 90Sr has a sufficient half-life (28.8 years) to be detected long after its appearance in the environment. After its uptake into the soil-edible plant system, it enters the food chain and represents a potential source of ...
Nataša B. Sarap, Marko Ž. Daković, Ivica Djalovic, Željko Dolijanović, P.V. Vara Prasad, Marija M. Janković   +5 more
doaj   +1 more source

Optimising hypoxia PET imaging and its applications in guiding targeted radiation therapy for non‐small cell lung cancer: a scoping review

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 106-118, March 2025.
This review article reports that quantification of hypoxic volumes using PET in the pre‐radiation therapy setting is of prognostic value and indicative of treatment response in non‐small cell lung cancer. Abstract Introduction Non‐small cell lung cancer (NSCLC) is the leading cause of cancer‐related death. Definitive treatment includes chemotherapy and
Carol Marks, Michelle Leech
wiley   +1 more source

What is the role of the bystander response in radionuclide therapies?

Frontiers in Oncology, 2013
Radionuclide therapy for cancer is undergoing a renaissance, with a wide range of radionuclide and clinical delivery systems currently under investigation.
Darren eBrady, Joe M O'Sullivan, Kevin M Prise   +2 more
doaj   +1 more source

Molecular theranostics: principles, challenges and controversies

Journal of Medical Radiation Sciences, Volume 72, Issue 1, Page 156-164, March 2025.
Molecular theranostics offers a powerful tool to drive precision medicine in nuclear oncology. While theranostics is not a new principle in nuclear medicine, recent advances in instrumentation and radiopharmacy have driven a reinvigoration and a broader suite of applications.
Geoffrey Currie
wiley   +1 more source

Carbon, Nitrogen, and Corresponding Stable Isotope Signatures Reveal Channel Banks as Major Sediment Sources in a Tropical Agricultural Watershed

Land Degradation &Development, EarlyView.
ABSTRACT Uncertainties about the applicability of δ13C and δ15N as tracers of sediment sources in tropical river basins highlight the need for more in‐depth investigations of these isotopes. This study therefore assessed the effectiveness of δ13C and δ15N signatures in discriminating sediment sources in an agricultural catchment in Northeast Brazil ...
Fábio Farias Amorim, Yuri Jacques Agra Bezerra da Silva, Rennan Cabral Nascimento, Ygor Jacques Agra Bezerra da Silva, Angelo Jamil Maia, Tales Tiecher, Jean Paolo Gomes Minella, Yusheng Zhang, Hari Ram Upadhayay, Simon Pulley, Adrian L. Collins   +10 more
wiley   +1 more source

Assessment of Soil Erosion Over Six Decades in a Long‐Term Experiment Using Fallout 137Cs and RUSLE: A South American Case Study

Land Degradation &Development, EarlyView.
ABSTRACT Soil erosion remains a major global concern affecting agricultural productivity and land sustainability. This study investigates the magnitude and variability of soil erosion in a long‐term experiment (LTE) established in 1963 in Colonia, Uruguay, aiming to compare the performance of the 137Cs tracer technique and the RUSLE model across ...
Marcos Tassano, Mirel Cabrera, Joan Gonzalez, Mario Perez‐Bidegain, Olivier Evrard, Kathrin Grahmann, J. Andrés Quincke   +6 more
wiley   +1 more source

Review of Past Nuclear Accidents: Source Terms and Recorded Gamma-Ray Spectra [PDF]

, 1997
Airborne gamma ray spectrometry using high volume scintillation detectors, optionally in conjunction with Ge detectors, has potential for making rapid environmental measurements in response to nuclear accidents.
Allyson, J.D., Cresswell, A., Department of the Environment: Radioactive Substances Division, McConville, P., Sanderson, D.C.W.   +4 more
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