Results 1 to 10 of about 649,082 (312)

Profil hormonal chez l’homme en cas d’infertilité au laboratoire de radio immunologie de l’institut des radioisotopes de Niamey

open access: yesAfrican Journal of Urology, 2016
Objectif: le but de l’étude est de déterminer les paramètres sociodémographiques et le profil hormonal de l’homme consultant pour infertilité. Malades et méthodes: Ont été inclus dans notre étude, tous les patients consultant pour infertilité datant d’au
D. Moussa   +5 more
doaj   +1 more source

Stable isotopes in precipitation

open access: yes, 1964
In chapter 2 the isotopic fractionation of water in some simple condensation-evaporation processes are considered quantitatively on the basis of the fractionation factors given in section 1.2. The condensation temperature is an important parameter, which
W. Dansgaard
semanticscholar   +1 more source

The Isotopes of Americium [PDF]

open access: yesPhysical Review, 1950
Three new americium activities (Am{sup 238}?, Am{sup 243}, and Am{sup 244?}, the latter two formed by n,{gamma} reactions) are described and some additional information is given on previously reported americium isotopes.
Street, K, Jr., Ghiorso, A, Seaborg, G T
openaire   +7 more sources

COVID-19: The Disease, the Immunological Challenges, the Treatment with Pharmaceuticals and Low-Dose Ionizing Radiation

open access: yesCells, 2021
The year 2020 will be carved in the history books—with the proliferation of COVID-19 over the globe and with frontline health workers and basic scientists worldwide diligently fighting to alleviate life-threatening symptoms and curb the spread of the ...
Jihang Yu   +3 more
doaj   +1 more source

Fungal treatment for liquid waste containing U(VI) and Th(IV)

open access: yesBiotechnology Reports, 2020
Four fungal and one bacterial isolates were isolated from a liquid waste sample of Nuclear Material Authority. Those dried biomasses were screened for uranium (U) and thorium (Th) adsorption efficiency where the most potent isolate was identified ...
E.A. Ghoniemy   +5 more
doaj   +1 more source

Lithium and Lithium Isotopes in Earth’s Surface Cycles

open access: yesElements, 2020
Lithium and its isotopes can provide information on continental silicate weathering, which is the primary natural drawdown process of atmospheric CO2 and a major control on climate.
P. V. von Strandmann   +2 more
semanticscholar   +1 more source

Preparation and Biodistribution of 99mTc-Pamidronate as Bone Imaging Agent

open access: yesJournal of Isotopes, 2016
Labeling of Pamidronate (PAM) with 99mTc was studied by a direct labeling method in the presence of SnCl2•2H2O as reducing agent. The influences of the concentration of SnCl2•2H2O, PAM concentration and pH value, reaction time on labeling yield were ...
LUO Hong-yi   +3 more
doaj   +1 more source

High-Energy Photon Attenuation Properties of Lead-Free and Self-Healing Poly (Vinyl Alcohol) (PVA) Hydrogels: Numerical Determination and Simulation

open access: yesGels, 2022
This work numerically determined high-energy photon shielding properties of self-healing poly(vinyl alcohol) (PVA) hydrogels containing lead-free, heavy-metal compounds, namely, bismuth oxide (Bi2O3), tungsten oxide (WO3), and barium sulfate (BaSO4 ...
Theerasarn Pianpanit   +1 more
doaj   +1 more source

Gamma Radiosynthesis of Colloidal Silver Nanoparticles Stabilized in ι-Carrageenan Under Atmospheric Gases: A Surface Plasmon Resonance Based Study

open access: yesAtom Indonesia, 2021
ι-Carrageenan is a biodegradable and biocompatible biomaterial which potentially stabilizes colloidal silver nanoparticles (AgNPs). The present study explored gamma radiosynthesis of AgNPs at varied concentration of ι-carrageenan solutions.
D. P. Perkasa   +3 more
doaj   +1 more source

Stable isotopes in tree rings.

open access: yes, 2004
Stable isotopes in tree rings could provide palaeoclimate reconstructions with perfect annual resolution and statistically defined confidence limits. Recent advances make the approach viable for non-specialist laboratories.
D. McCarroll, N. Loader
semanticscholar   +1 more source

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