Results 31 to 40 of about 1,642,984 (314)

THE PROTOBIOLOGICAL THEORY OF CEILINGS AND FLOORS, OR CHEMICAL EVOLUTION AS A PLANETARY PROCESS [PDF]

open access: yesFilozofia i Nauka
The article presents a modern protobiological theory based on the classical archetype. It connects the issues of origins of life with the theory of the hierarchy of matter and recognizes that error correction occurs within hierarchical and dynamic living
Alicja Kubica
doaj   +1 more source

Feeding Our Microbiota: Stimulation of the Immune/Semiochemical System and the Potential Amelioration of Non-Communicable Diseases

open access: yesLife, 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
doaj   +1 more source

Microbiome–Gut Dissociation in the Neonate: Autism-Related Developmental Brain Disease and the Origin of the Placebo Effect

open access: yesGastrointestinal 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
doaj   +1 more source

Chemical Evolution of M31

open access: yes, 2014
We review chemical evolution models developed for M31 as well as the abundance determinations available for this galaxy. Then we present a recent chemical evolution model for M31 including radial gas flows and galactic fountains along the disk, as well ...
Matteucci, F., Spitoni, E.
core   +1 more source

GRBs as Cosmological Probes - Cosmic Chemical Evolution [PDF]

open access: yes, 2006
Long-duration gamma-ray bursts (GRBs) are associated with the death of metal-poor massive stars. Even though they are highly transient events very hard to localize, they are so bright that they can be detected in the most difficult environments.
Berger E   +29 more
core   +2 more sources

Microbiome–Gut Dissociation in the Neonate: Obesity and Coeliac Disease as Examples of Microbiome Function Deficiency Disorder

open access: yesGastrointestinal 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
doaj   +1 more source

Chemical evolution of star clusters

open access: yes, 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   +1 more source

Chemical Evolution in the Large Magellanic Cloud [PDF]

open access: yes, 1999
We present a new input parameter set of the Pagel model (Pagel & Tautvai$\rm \breve{s}$ien$\rm \dot{e}$ 1998) for the Large Magellanic Cloud (LMC) in order to reproduce the observations, including the star formation rate (SFR) history.
Nagataki, S., Watanabe, G.
core   +4 more sources

Origin of the Reductive Tricarboxylic Acid (rTCA) Cycle-Type CO2 Fixation: A Perspective

open access: yesLife, 2017
The reductive tricarboxylic acid (rTCA) cycle is among the most plausible candidates for the first autotrophic metabolism in the earliest life. Extant enzymes fixing CO2 in this cycle contain cofactors at the catalytic centers, but it is unlikely that ...
Norio Kitadai   +2 more
doaj   +1 more source

JINA-NuGrid Galactic Chemical Evolution Pipeline

open access: yes, 2016
Galactic chemical evolution is a topic that involves nuclear physics, stellar evolution, galaxy evolution, observation, and cosmology. Continuous communication and feedback between these fields is a key component in improving our understanding of how ...
Côté, Benoit   +7 more
core   +1 more source

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