Results 1 to 10 of about 1,462,174 (364)

Copper induces cell death by targeting lipoylated TCA cycle proteins

open access: yesScience, 2022
Copper is an essential cofactor for all organisms, and yet it becomes toxic if concentrations exceed a threshold maintained by evolutionarily conserved homeostatic mechanisms. How excess copper induces cell death, however, is unknown.
Margaret Dreishpoon   +2 more
exaly   +2 more sources

Design and material based Sustainable Mobility – Copper vs. REE [PDF]

open access: yesE3S Web of Conferences, 2022
Carbon neutrality by 2050 is one of the greatest challenges of our society. Hence, the electrification of the mobility sector belongs to those to focus on, due to their high carbon intensity, when based on combustion engines.
Tikana L.   +3 more
doaj   +1 more source

The Behaviour of Low Arsenic Copper Anodes at High Current Density in Electrorefining [PDF]

open access: yesArchives of Metallurgy and Materials, 2023
Arsenic is the only beneficial impurity for copper electrorefining through inhibiting anode passivation and the formation of floating slimes. The behaviour of copper anodes with different content of arsenic were studied at high current density (>280 A/m ...
Xuyong Zhang   +3 more
doaj   +1 more source

Determination of Iridium and Rhodium in Copper Anode Slime by Inductively Coupled Plasma-Mass Spectrometry with Nickel Sulphide Fire Assay

open access: yesYankuang ceshi, 2023
BACKGROUND With the wide application of iridium and rhodium in aerospace, electronics, energy and other fields, it has become a very attractive metal in the world. In China, iridium and rhodium ore resources are relatively scarce with low grade, so it is
LIU Fangmei   +4 more
doaj   +1 more source

The determination of the content of gold and silver in geological samples [PDF]

open access: yesJournal of the Serbian Chemical Society, 2001
Amethod has been elaborated for the determination of the content of gold and silver in geological samples by atomic absorption spectrophotometry (AAS) in combination with the fire assay method.
Petrović N.   +3 more
doaj   +1 more source

Copper-dependent autophagic degradation of GPX4 drives ferroptosis

open access: yesAutophagy, 2023
Ferroptosis is a type of iron-dependent regulated cell death characterized by unrestricted lipid peroxidation and membrane damage. Although GPX4 (glutathione peroxidase 4) plays a master role in blocking ferroptosis by eliminating phospholipid ...
Qian Xue   +9 more
semanticscholar   +1 more source

Taiwan’s November 2022 Mid-term Election Before, After and Predictions for the 2024 Presidential Election

open access: yesEast Asian Policy, 2023
In late 2022, Taiwan held its every four years mid-term election that was comprised of almost all of its local electoral contests; the ruling Democratic Progressive Party lost.
John F COPPER
doaj   +1 more source

Chemical removal of calcium sulfate deposits from irrigation water transmission pipelines (Case study: Sedimentation of water transmission line from Sarcheshmeh copper complex tailing dam for agricultural use in downstream areas) [PDF]

open access: yesرویکردهای نوین در مهندسی آب و محیط زیست, 2023
Clogging and blockage of water transmission pipelines is one of the problems that reduce discharge downstream by creating various sediments. The aim of this study was to identify and remove the constraints caused by sediment in the water transmission ...
Anita Afkhami   +5 more
doaj   +1 more source

Copper homeostasis and copper-induced cell death in the pathogenesis of cardiovascular disease and therapeutic strategies

open access: yesCell Death and Disease, 2023
Copper is a vital mineral, and an optimal amount of copper is required to support normal physiologic processes in various systems, including the cardiovascular system.
Xinyue Chen   +11 more
semanticscholar   +1 more source

Insight on the reduction of copper content in slags produced from the Ausmelt Converting Process [PDF]

open access: yesJournal of Mining and Metallurgy. Section B: Metallurgy, 2021
The reduction of copper content in converting slag using process control is significant to copper smelter. In this study, the slags produced from the Ausmelt Converting Process for copper matte was analyzed using X-ray diffraction and chemical analysis ...
Yuan H.-B.   +4 more
doaj   +1 more source

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