Results 21 to 30 of about 1,252,669 (356)

Copper and Copper Proteins in Parkinson’s Disease [PDF]

open access: yesOxidative Medicine and Cellular Longevity, 2014
Copper is a transition metal that has been linked to pathological and beneficial effects in neurodegenerative diseases. In Parkinson’s disease, free copper is related to increased oxidative stress, alpha-synuclein oligomerization, and Lewy body formation. Decreased copper along with increased iron has been found insubstantia nigraand caudate nucleus of
Sergio Montes   +4 more
openaire   +2 more sources

Microstructure and properties of a novel Cu–3Ti–0.1Mg–0.05B–0.05 La alloy with high strength and conductivity

open access: yes工程科学学报, 2023
The Cu–Ti alloy has similar mechanical properties and electrical conductivity to the Cu–Be alloy. It also exhibits excellent high-temperature properties and stress relaxation resistance.
Hu WANG, Yong-da MO, Hua-fen LOU
doaj   +1 more source

Making online learning accessible to disabled students: an institutional case study

open access: yesResearch in Learning Technology, 2006
Based on the authors' reflections on experience working at the Open University, approaches to making online learning accessible to disabled students are considered. The considerations are applicable to all concerned with online learning and indeed
Martyn Copper
doaj   +1 more source

Copper Nanoparticles Prepared fromOxalic Precursors [PDF]

open access: yes, 2011
The synthesis of nanoparticles of copper metal via a soft chemistry route is presented in this paper. The method is based on the thermal decomposition under nitrogen or hydrogen of oxalic precursors with a well-controlled morphology and particle size ...
Philippe Tailhades   +5 more
core   +1 more source

Copper and copper patina [PDF]

open access: yesKoroze a ochrana materialu, 2017
Abstract This article is aimed at summarizing knowledge about copper and patina that is formed on the surface of copper. The article describes chemical processes in patina formation and explains the difference between natural and artificial patina, as well as some methods used in the investigation of patina such as XRD analysis, EIS ...
P. Rak, R. Bureš
openaire   +1 more source

Hypogene enrichment in Miduk porphyry copper ore deposit, Iran

open access: yesScientific Reports, 2022
This study was planned with the aim of identifying the nature and circumstances of the high-graded central core and increasing trend of copper content through depth of 1000 m in Miduk PCD. Mechanisms of high-grading, refer to hypogene enrichment (HE), in
L. Yousefi Soorani   +4 more
doaj   +1 more source

Experience of development of porphyry copper type deposits in the Urals

open access: yesЗаписки Горного института, 2017
Russian copper company was the first in Russia to start developing porphyry copper deposits. In 2013 the Mikheevsky mining and processing plant with the annual production capacity of 18 mln t of ore was put into exploitation.
I. A. Altushkin   +3 more
doaj   +1 more source

Applications and Preparation Methods of Copper Chromite Catalysts: A Review [PDF]

open access: yes, 2011
In this review article various applications and preparation methods of copper chromite catalysts have been discussed. While discussing it is concluded that copper chromite is a versatile catalyst which not only catalyses numerous processes of ...
Prasad, R.   +3 more
core   +1 more source

Synthesis of large-area and aligned copper oxide nanowires from copper thin film on silicon substrate [PDF]

open access: yes, 2007
Large-area and aligned copper oxide nanowires have been synthesized by thermal annealing of copper thin films deposited onto silicon substrate. The effects of the film deposition method, annealing temperature, film thickness, annealing gas, and ...
Rossi, Carole   +4 more
core   +1 more source

Shockwave intravascular lithotripsy as a novel strategy for balloon undilatable heavily calcified chronic total occlusion lesions

open access: yesCardiology Journal, 2023
BACKGROUND: The successful percutaneous coronary intervention (PCI) in chronic total occlusion (CTO) improves the long-term outcome in patients with coronary artery disease (CAD).
Piotr Rola   +9 more
doaj   +1 more source

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