Results 291 to 300 of about 6,446,269 (330)

Petit-spot hydrothermal systems simulated: Fluid evolution, chemical fluxes, and chemoautotrophic habitability

open access: hybrid
Keishiro Azami   +7 more
openalex   +1 more source

Chemical and Structural Evolution of AgCu Catalysts in Electrochemical CO2 Reduction.

Journal of the American Chemical Society, 2023
Silver-copper (AgCu) bimetallic catalysts hold great potential for electrochemical carbon dioxide reduction reaction (CO2RR), which is a promising way to realize the goal of carbon neutrality. Although a wide variety of AgCu catalysts have been developed
Peng-Cheng Chen   +6 more
semanticscholar   +1 more source

Evolution was Chemically Constrained

Journal of Theoretical Biology, 2003
The objective of this paper is to present a systems view of the major features of biological evolution based upon changes in internal chemistry and uses of cellular space, both of which it will be stated were dependent on the changing chemical environment.
R J P, Williams   +1 more
openaire   +2 more sources

Chemical Evolution of Galaxies

Annual Review of Astronomy and Astrophysics, 1976
The various nucleosynthetic processes needed to account for the formation of the different nuclear species have been described in the previous chapters as well as the location of these nucleosynthetic events. At the beginning of this monograph, the evolution of the matter which constitutes the celestial bodies such as planets, stars and galaxies was ...
Audouze, J., Tinsley, B.M.
openaire   +2 more sources

The Dominant Role of Oxygen in Modulating the Chemical Evolution Pathways of Tyrosine in Peptides: Dityrosine or Melanin.

Angewandte Chemie, 2019
In diverse biological systems, the oxidation of tyrosine to melanin or dityrosine is crucial for the formation of crosslinked proteins and thus for the realization of their structural, biological, and photoactive functionalities; however, the predominant
Xiaokang Ren   +5 more
semanticscholar   +1 more source

Chemical evolution and the evolution of the Earth's crust

Origins of Life, 1977
It is hypothesized that there is a close relationship between the geologic evolution of the global plates of the Earth's crust and the chemical evolution of life on the Earth. Characteristics of the axes of plate spreading are discussed in relation to postulated environments conductive to the synthesis of chemical compounds thought to be important ...
D E, Ingmanson, M J, Dowler
openaire   +2 more sources

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