Results 91 to 100 of about 34,670 (250)

The origin of short-lived radionuclides and the astrophysical environment of solar system formation

open access: yes, 2008
Based on early solar system abundances of short-lived radionuclides (SRs), such as $^{26}$Al (T$_{1/2} = 0.74$ Myr) and $^{60}$Fe (T$_{1/2} = 1.5$ Myr), it is often asserted that the Sun was born in a large stellar cluster, where a massive star ...
Amelin Y.   +15 more
core   +1 more source

A minimal physiologically‐based pharmacokinetic modeling platform to predict intratumor exposure and receptor occupancy of an anti‐LAG‐3 monoclonal antibody

open access: yesCPT: Pharmacometrics &Systems Pharmacology, Volume 14, Issue 3, Page 460-473, March 2025.
Abstract In oncology drug development, measuring drug concentrations at the tumor site and at the targeted receptor remains an ongoing challenge. Positron emission tomography (PET)‐imaging is a promising noninvasive method to quantify intratumor exposure of a radiolabeled drug (biodistribution data) and target saturation by treatment doses in vivo ...
Robin Michelet   +8 more
wiley   +1 more source

Determination of transfer factors for 137Cs from sod-podzolic sand soil to vegetables [PDF]

open access: yesЯдерна фізика та енергетика, 2013
Agrochemical parameters of sod-podzolic sand soils Vyshgorodskiy district of Kyiv region have been inves-tigated. The main species of vegetables cultivated at homestead lands have been determined.
N. D. Kuchma, A. N. Iakymenko
doaj  

A modified technique for fabrication of custom-made afterload brachytherapy appliance

open access: yesThe Journal of Indian Prosthodontic Society, 2019
Radiotherapy for carcinomas that involve the mouth and its related structures has been improved by the usage of different prostheses known as radiation carriers.
Sumeet Jain   +3 more
doaj   +1 more source

A Multi‐Analytical Approach for the Compositional Characterization and Chronological Discrimination of Benin (Nigeria) Metal Sculptures

open access: yesArchaeometry, EarlyView.
ABSTRACT This study presents a multi‐analytical archaeometric approach for the compositional characterization and chronological discrimination of Benin metal sculptures in relation to the 1897 Punitive Expedition. The methodology integrates elemental composition (XRF and ICP), stable lead isotope ratios (MC‐ICP‐MS) for alloy system characterization ...
I. Torraba   +5 more
wiley   +1 more source

Recent Research Involving the Transfer of Radionuclides to Milk

open access: yesJournal of Dairy Science, 1989
The radionuclides in milk, which result from exposure of dairy cows to radioactive fallout, are a major factor in assessment of internal radiation of humans. To evaluate the radionuclide intake of people from fallout-contaminated milk requires information about feed sources and milk distribution.
openaire   +2 more sources

The 3D Printing Method for Preparing 131I Thyroid Body Source

open access: yesJournal of Isotopes
This research investigates the utilization of 3D printing technology and the phase transfer method to fabricate photosensitive resin containing the radionuclide 131I,aiming to simulate the neck-thyroid source model for the efficiency calibration of ...
Yiwen HAN   +6 more
doaj   +1 more source

Coastal evolution, environmental change and carbon storage in the Thung Prong Thong Mangrove, eastern Gulf of Thailand

open access: yesBoreas, EarlyView.
Palaeoenvironmental records along the eastern coast of Thailand remain sparse, with only a few studies attempting to reconstruct past climatic and environmental conditions. However, additional palaeoenvironmental, palaeoclimatic and sea‐level records are needed to improve our understanding of coastal evolution and local environmental changes.
Sakonvan Chawchai   +7 more
wiley   +1 more source

Controlled Synthesis of a New Class of Heterostructured Metal Oxides (Cerium, Thorium, Uranium)/Calcium Fluoride Core‐Shell Nanocrystals With Atomically Coherent Interfaces

open access: yesAngewandte Chemie, Volume 138, Issue 12, 16 March 2026.
Precisely engineered heterostructured metal oxide‐based MO2 / CaF2 (M = Ce, Th, U) core‐shell nanocrystals are synthesized with atomic‐level control over size, shell thickness, and interface coherence, expanding heterostructure design principles to cerium oxide and actinide oxide systems for the first time.
Dejing Meng   +14 more
wiley   +2 more sources

Refining the timing of Middle Pleistocene (MIS 12 to MIS 6) ice advances into northern central Europe: sedimentological analysis and single‐grain luminescence dating of glaciotectonic complexes and tunnel‐valley fills

open access: yesBoreas, EarlyView.
We summarize the current state of knowledge on the age of the Middle Pleistocene ice advances into northern central Europe and provide 25 new single‐grain feldspar luminescence ages of Elsterian and Saalian glacigenic sediments to constrain the age of the ice advances and their tentative correlation with marine isotope stages/substages.
Niklas von Soest   +10 more
wiley   +1 more source

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