Results 11 to 20 of about 331,108 (267)

Prevalent emergence of reciprocity among cross-feeding bacteria

open access: yesISME Communications, 2022
Explaining the de novo evolution of obligate cooperative cross-feeding interactions among bacteria is a fundamental problem. A critical step during this process is the emergence of reciprocity among two interaction partners, because a mutually beneficial
Samir Giri   +4 more
doaj   +1 more source

Modelling the Chemical Evolution [PDF]

open access: yesProceedings of the International Astronomical Union, 2009
AbstractAdvanced observational facilities allow to trace back the chemical evolution of the Universe, on the one hand, from local objects of different ages and, secondly, by direct observations of redshifted objects. The chemical enrichment serves as one of the cornerstones of cosmological evolution.
S. Recchi, Gerhard Hensler
openaire   +4 more sources

Mutually stabilizing interactions between proto-peptides and RNA

open access: yesNature Communications, 2020
Cooperative relationships are widespread among different classes of biopolymers and are predicted to have existed during emergence of life. This study shows that proto-peptides engage in mutually stabilizing interactions with RNA, providing support for ...
Moran Frenkel-Pinter   +9 more
doaj   +1 more source

The chemical evolution of IC 10 [PDF]

open access: yesAstronomy and Astrophysics, 2010
Dwarf irregular galaxies are relatively simple unevolved objects where it is easy to test models of galactic chemical evolution. We attempt to determine the star formation and gas accretion history of IC10, a local dwarf irregular for which abundance, gas, and mass determinations are available. We apply detailed chemical evolution models to predict the
Laura Magrini   +7 more
openaire   +5 more sources

Physiological characterization of a new thermotolerant yeast strain isolated during Brazilian ethanol production, and its application in high-temperature fermentation

open access: yesBiotechnology for Biofuels, 2020
Background The use of thermotolerant yeast strains can improve the efficiency of ethanol fermentation, allowing fermentation to occur at temperatures higher than 40 °C.
Cleiton D. Prado   +13 more
doaj   +1 more source

The chemical evolution of the Milky Way [PDF]

open access: yesProceedings 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
openaire   +6 more sources

The methylome of the model arbuscular mycorrhizal fungus, Rhizophagus irregularis, shares characteristics with early diverging fungi and Dikarya

open access: yesCommunications Biology, 2021
Anurag Chaturvedi et al. use long-read PacBio sequencing and LC-MS to profile 5mC and 6mA DNA methylation in the model arbuscular mycorrhizal fungus, Rhizophagus irregularis. Their results suggest that R.
Anurag Chaturvedi   +8 more
doaj   +1 more source

EMPRESS. XI. SDSS and JWST Search for Local and z ∼4–5 Extremely Metal-poor Galaxies (EMPGs): Clustering and Chemical Properties of Local EMPGs

open access: yesThe Astrophysical Journal, 2023
We search for local extremely metal-poor galaxies (EMPGs), selecting photometric candidates by broadband color excess and machine-learning techniques with the SDSS photometric data.
Moka Nishigaki   +18 more
doaj   +1 more source

Chemical Evolution of Galaxies [PDF]

open access: yesPublications of the Astronomical Society of the Pacific, 1979
SUMMARYThis paper discusses the initial mass function, the oxygen yield and the helium abundance in irregular and blue compact galaxies.
openaire   +4 more sources

Enzymatic synthesis and nanopore sequencing of 12-letter supernumerary DNA

open access: yesNature Communications, 2023
The 4-letter DNA alphabet (A, T, G, C) as found in Nature is an elegant, yet non-exhaustive solution to the problem of storage, transfer, and evolution of biological information.
Hinako Kawabe   +11 more
doaj   +1 more source

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