Results 81 to 90 of about 502,778 (343)

The Content and Distribution Characteristics of Heavy Metals in Root Soils in the Jiajika Lithium Resource Area, Western Sichuan Province

open access: yesYankuang ceshi, 2019
BACKGROUND When inductively coupled plasma-mass spectrometry (ICP-MS) is used to determine the rare earth elements (REE) in the barite-associated light rare earth ores, Ba and light rare earth elements La, Ce, Pr, Nd, Sm, cause severe mass spectral ...
GAO Juan-qin   +6 more
doaj   +1 more source

Rare earth - no case for government intervention [PDF]

open access: yes
China has officially restricted exports of rare earth for several years and announced this year it will further tighten exports. Rare earth is a group of 17 different metals, usually found clustered together.
Georg Zachmann
core   +1 more source

Alteration effects of volcanic ash in seawater: Anomalous Y/Ho ratios in coastal waters of the Central Mediterranean sea [PDF]

open access: yes, 2007
This paper presents the results of a study based on data collected during the oceanographic cruise ANSIC 2001 carried out in the Ionian Sea during the explosive activity of Mount Etna in the summer of 2001. Anomalous low values of Y/Ho ratios in seawater
Aricò, P   +6 more
core   +1 more source

Age‐Related Characteristics of SYT1‐Associated Neurodevelopmental Disorder

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objectives We describe the clinical manifestations and developmental abilities of individuals with SYT1‐associated neurodevelopmental disorder (Baker‐Gordon syndrome) from infancy to adulthood. We further describe the neuroradiological and electrophysiological characteristics of the condition at different ages, and explore the associations ...
Sam G. Norwitz   +3 more
wiley   +1 more source

Rare Earth Abundances in Meteoritic Chondrules [PDF]

open access: yes
Rare earth elements abundance in meteoritic chondrites determined by radiochemical neutron activation ...
Olehy, D. A.   +2 more
core   +1 more source

Introduction to a Resources Special Issue on Criticality of the Rare Earth Elements: Current and Future Sources and Recycling

open access: yes, 2018
The rare earth elements (REE) are vital to modern technologies and society and are amongst the most important of the critical elements. This special issue of Resources examines a number of facets of these critical elements, current and future sources of ...
Jowitt, Simon M.
core   +2 more sources

U-Pb Geochronology, Sr–Nd Geochemistry, Petrogenesis and Tectonic Setting of Gandab Volcanic Rocks, Northeast Iran [PDF]

open access: yes, 2017
This paper addresses U-Pb geochronology, Sr-Nd geochemistry, petrogenesis and tectonic setting in the Gandab volcanic rocks. The Gandab volcanic rocks belong to the Sabzevar zone magmatic arc (northeastern Iran).
Entezari Harsini, A.   +3 more
core   +1 more source

Effectiveness and Safety of Nusinersen and Risdiplam in Spinal Muscular Atrophy: A Systematic Review

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Spinal Muscular Atrophy (SMA) is a rare genetic disorder marked by progressive muscle weakness and mobility loss. It has a profound physical, emotional and social impact on patients and caregivers, requiring comprehensive medical and supportive care.
Amin Mehrabian   +9 more
wiley   +1 more source

Rare earth elements in nuclear medicine [PDF]

open access: yesСаратовский научно-медицинский журнал, 2014
The review focuses on the key applications of stable and radioactive isotopes of rare earth elements in the technology of nuclear medicine, radionuclide diagnostics and therapy, as well as magnetic resonance imaging and binary radiotherapy technologies.
Kodina G.E., Kulakov V.N., Sheino I.N.
doaj  

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