Results 21 to 30 of about 134,172 (292)

Short-lived radioisotopes in meteorites from Galactic-scale correlated star formation [PDF]

open access: yesProceedings of the International Astronomical Union, 2018
Meteoritic evidence shows that the Solar system at birth contained significant quantities of short-lived radioisotopes (SLRs) such as 60Fe and 26Al produced in supernova explosions and in the Wolf-Rayet winds.
Y. Fujimoto, M. Krumholz, S. Tachibana
semanticscholar   +1 more source

Concentration of rhenium from dilute sodium chloride solutions [PDF]

open access: yesJournal of the Serbian Chemical Society, 2008
The conditions for the desorption of rhenium from the anion exchange resin Dowex 1-x8 by HNO3, HCl, H2SO4 and NaOH were determined. The solution (5.0×10-3 mol dm-3 Re in 0.15 mol dm-3 NaCl) was passed through a column containing 0.10 g of the resin.
Lukić Dragoljub M.   +2 more
doaj   +1 more source

A new method in the production of Ac-227, Ra-228, Th-228 and U-232 on Thorium target from different perspective for use in Radioisotope Power Systems and Nuclear Batteries [PDF]

open access: yes, 2021
We recommended a new method from different perspective for the production of Ac-227, Ra-228, Th-228 and U-232 radioisotopes which have an important potential for use in radioisotope power systems (instead of Pu-238) and nuclear batteries, based on long half-life, high power density and low radiation level.
arxiv   +1 more source

Separation of tungsten and rhenium on alumina [PDF]

open access: yesJournal of the Serbian Chemical Society, 2004
The conditions for the efficient separation of tungsten(VI) and rhenium (VII) on alumina were established. The distribution coefficients K d for tungstate and perrhenate anions, as well as the separation factors α(α = KdWO42-/Kd ReO4-) were determined ...
Vučina Jurij L.   +2 more
doaj   +1 more source

Research Progress of PSMA-Targeted Small Molecule Drugs

open access: yesJournal of Isotopes, 2021
Prostate cancer (PCa) is one of the most common reasons for male death, seriously endangering human life and health. With the application of prostate specific membrane antigen PSMAtargeted radiopharmaceuticals in PET/CT and SPECT/CT, the sensitivity and ...
MU Boshuai;XU Yang;LIU Zhibo
doaj   +1 more source

Prevalence of short-lived radioactive isotopes across exoplanetary systems inferred from polluted white dwarfs [PDF]

open access: yes, 2022
In the Solar System short-lived radioisotopes, such as 26Al, played a crucial role during the formation planetary bodies by providing a significant additional source of heat. Notably, this led to early and large-scale melting and iron core formation in planetesimals and their loss of volatile elements, such as hydrogen and carbon.
arxiv   +1 more source

Investigation of alpha particle induced reactions on natural silver in the 40-50 MeV energy range [PDF]

open access: yesNuclear Instruments and Methods B 436(2018)119-129, 2021
Natural silver targets have been irradiated by using a 50 MeV alpha-particle beam in order to measure the activation cross sections of radioisotopes in the 40-50 MeV energy range. Among the radio-products there are medically important isotopes such as $^{110m}$In and $^{111}$In.
arxiv   +1 more source

Efficiency of calcium phosphate composite nanoparticles in targeting Ehrlich carcinoma cells transplanted in mice

open access: yesJournal of Advanced Research, 2016
The present study aimed to investigate the mode of action of nano-CaPs in vivo as a therapy for solid tumor in mice. To achieve this goal, Ehrlich Ascites Carcinoma (EAC) was transplanted into 85 Swiss male albino mice.
Eman I. Abdel-Gawad   +2 more
doaj   +1 more source

Assessment of Salivary Gland Function Using Salivary Scintigraphy in Pre and Post Radioactive Iodine Therapy in Diagnosed Thyroid Carcinoma Patients [PDF]

open access: yesJournal of Clinical and Diagnostic Research, 2016
Introduction: Thyroid carcinoma represents less than 1% of all cancers. The first line of treatment for thyroid cancer is partial/ total thyroidectomy.
Raj Kumar Badam   +7 more
doaj   +1 more source

Liquid scintillation counting at the limit of detection in biogeosciences

open access: yesFrontiers in Microbiology, 2023
Liquid scintillation is widely used to quantify the activity of radioisotopes. We present an overview of the technique and its application to biogeosciences, particularly for turnover rate measurements.
Florian Schubert, Jens Kallmeyer
doaj   +1 more source

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