Results 11 to 20 of about 7,461,069 (375)
Role of Mineral Surfaces in Prebiotic Chemical Evolution. In Silico Quantum Mechanical Studies. [PDF]
Life (Basel), 2019 There is a consensus that the interaction of organic molecules with the surfaces of naturally-occurring minerals might have played a crucial role in chemical evolution and complexification in a prebiotic era.
Rimola A, Sodupe M, Ugliengo P.
europepmc +2 more sources
A recursive microfluidic platform to explore the emergence of chemical evolution [PDF]
Beilstein Journal of Organic Chemistry, 2017 We propose that a chemically agnostic approach to explore the origin of life, using an automated recursive platform based on droplet microfluidics, could be used to induce artificial chemical evolution by iterations of growth, speciation, selection, and ...
David Doran +4 more
doaj +2 more sources
Chemical evolution of the Galactic Center [PDF]
Monthly Notices of the Royal Astronomical Society, 2015 In recent years, the Galactic Center (GC) region (200 pc in radius) has been studied in detail with spectroscopic stellar data as well as an estimate of the ongoing star formation rate. The aims of this paper are to study the chemical evolution of the GC
Grieco, V. +4 more
core +7 more sources
Stellar chemical evolution [PDF]
Symposium - International Astronomical Union, 1997 One of the major achievements of astrophysics has been the demonstration that most of the chemical elements have been synthesized in stars: nucleosynthesis calculations of homogeneous and inhomogeneous big bang cosmologies show that, in comparison with the most metal-poor stars currently known, essentially no elements heavier than B existed at the era ...
John E. Norris
openalex +3 more sources
Chemical evolution of star clusters [PDF]
Philosophical Transactions of the Royal Society A: Mathematical, Physical and Engineering Sciences, 2009 I discuss the chemical evolution of star clusters, with emphasis on old globular clusters, in relation to their formation histories. Globular clusters clearly formed in a complex fashion, under markedly different conditions from any younger clusters ...
Abia C. +6 more
core +5 more sources
Primitive Photosynthetic Architectures Based on Self‐Organization and Chemical Evolution of Amino Acids and Metal Ions [PDF]
Advanced Science, 2018 The emergence of light‐energy‐utilizing metabolism is likely to be a critical milestone in prebiotic chemistry and the origin of life. However, how the primitive pigment is spontaneously generated still remains unknown.
Kai Liu +4 more
doaj +2 more sources
Retrocausality in Quantum Phenomena and Chemical Evolution
Information, 2016 The interplay between retrocausality and the time-reversal symmetry of the dynamical law of quantum mechanics underscores the significance of the measurement dynamics with the use of indivisible and discrete quantum particles to be mediated.
Koichiro Matsuno
doaj +2 more sources
Chemical Evolution of a Bacterial Proteome. [PDF]
Angew Chem Int Ed Engl, 2015 AbstractWe have changed the amino acid set of the genetic code of Escherichia coli by evolving cultures capable of growing on the synthetic noncanonical amino acid L‐β‐(thieno[3,2‐b]pyrrolyl)alanine ([3,2]Tpa) as a sole surrogate for the canonical amino acid L‐tryptophan (Trp).
Hoesl MG +10 more
europepmc +5 more sources
The chemical evolution of oligonucleotide therapies of clinical utility. [PDF]
Nat Biotechnol, 2017 Khvorova A, Watts JK.
europepmc +2 more sources
Modelling the chemical evolution of the Milky Way [PDF]
The Astronomy and Astrophysics Review, 2021 In this review, I will discuss the comparison between model results and observational data for the Milky Way, the predictive power of such models as well as their limits.
F. Matteucci
semanticscholar +1 more source