Results 11 to 20 of about 7,622,829 (352)
The chemical evolution of the Milky Way [PDF]
Proceedings of Frontier Research in Astrophysics – II — PoS(FRAPWS2016), 2017 10 pages, 6 figures, in Frontier Research in Astrophysics - II 23-28 May 2016 Mondello (Palermo ...
Donatella Romano +3 more
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Extragalactic Planetary Nebulae: tracers of the chemical evolution of nearby galaxies [PDF]
, 2012 The study of the chemical composition of Planetary Nebulae in external galaxies is of paramount importance in the fields of stellar evolution and of the chemical enrichment history of galaxies.
Denise R. Gonçalves +17 more
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Chemical Evolution of Bulges [PDF]
Astrophys.Space Sci. 277 (2001) 205-205, 2001 1 pag, contribution to the Euroconference "The Evolution of Galaxies. I. Observational Clues"
Mercedes Mollá, Federico Ferrini
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Chemical evolution and life [PDF]
BIO Web of Conferences, 2015 In research on the origins of life, the concept of “chemical evolution” aims at explaining the transition from non-living matter to living matter. There is however strong disagreement when it comes to defining this concept more precisely, and in particular with reference to a chemical form of Darwinian evolution: for some, chemical evolution is nothing
Malaterre Christophe
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The Chemical Evolution of the Solar Neighbourhood [PDF]
, 2003 Recent models of galactic chemical evolution account for updated evolutionary models of massive stars (with special emphasis on stellar winds) and for the effects of intermediate mass and massive binaries. The results are summarised. We also present a critical discussion on possible effects of stellar rotation on overall galactic chemical evolutionary ...
Dany Vanbeveren, Erwin De Donder
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Life, 2022 The origin of biopolymers is a central question in origins of life research. In extant life, proteins are coded linear polymers made of a fixed set of twenty alpha-L-amino acids.
Moran Frenkel-Pinter +6 more
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Life, 2022 Non-communicable diseases are those conditions to which causative infectious agents cannot readily be assigned. It is increasingly likely that at least some of these conditions are due to the breakdown of the previously mutualistic intestinal microbiota ...
David Smith +3 more
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Gastrointestinal Disorders, 2022 While the importance of the intestinal microbiome has been realised for a number of years, the significance of the phrase microbiota–gut–brain axis is only just beginning to be fully appreciated.
David Smith +4 more
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Gastrointestinal Disorders, 2022 The purpose of this article is to provide a direction for translational research based on an analysis of the nature of complex, immune-related conditions such as obesity and coeliac disease.
David Smith +2 more
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Thioesters provide a plausible prebiotic path to proto-peptides
Nature Communications, 2022 One of the early processes enabling the origins of life is thought to be the condensation of building blocks into oligomers and polymers. In this article, the authors report the synthesis of thiodepsipeptides and HS-peptides under mild temperatures and ...
Moran Frenkel-Pinter +6 more
doaj +1 more source