Results 81 to 90 of about 2,377,840 (304)
Synthesis of Organic and Inorganic Compounds in Asymptotic Giant Branch Stars
GalaxiesAfter the synthesis of carbon in the core of asymptotic giant branch (AGB) stars, carbon is dredged up to the surface by convection. Many carbon-based molecules are formed in the subsequently developed stellar wind.
Sun Kwok
doaj +1 more source
FEBS Open Bio, EarlyView.NMR metabolomics revealed concentration‐dependent metabolic perturbations in HepG2 cells exposed to H2O2. Rifampicin pretreatment enhanced metabolic competence, attenuated toxin‐induced alterations and produced metabolite profiles more consistent with human liver physiology, supporting the use of CYP450‐induced HepG2 models for improved in vitro ...
Maren Jinks +4 more
wiley +1 more source
A1045_East_Carbon_High_School_0048_HD_18_fps
, 1958 Film showing the East Carbon High School football team playing against an unidentified team. East Carbon wears the red helmets.
East Carbon High School
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, 1997 It is currently accepted that Hot-Bottom-Burning (HBB) in intermediate-mass asymptotic giant branch (AGB) stars prevents the formation of C~stars. Nevertheless, we present in this paper the results of some detailed evolutionary calculations which show that even with HBB we obtain C~stars at the highest luminosities reached on the AGB.
Frost, Cheryl +4 more
openaire +2 more sources
The R Stars: Carbon Stars of a Different Kind [PDF]
Publications of the Astronomical Society of the Pacific, 1997 After 16 years of radial-velocity observations of a sample of 22 R-type carbon stars, no evidence for binary motion has been detected in any of them. This is surprising considering that approximately 20% of normal late-type giants are spectroscopic binaries, and the fraction is close to 100% in barium, CH, and subgiant/dwarf CH and barium stars.
openaire +2 more sources
FEBS Open Bio, EarlyView.We report the first β‐glucosidase with demonstrated hydrolytic activity on an N‐linked glycopyranoside. The enzyme, native to maize, was biochemically characterised for this novel reaction, and structural modelling of the enzyme–substrate complex revealed several clues to the underlying reduced catalytic rate relative to its native O‐glycopyranoside ...
Hani Gharabli +3 more
wiley +1 more source
Abundance of Heavy r-process Elements in CEMP-rs Stars: The Role of the i-process
The Astrophysical JournalCarbon-enhanced metal-poor (CEMP) stars are ancient stars enriched in carbon and heavy elements. Some of these stars exhibit enhanced s -process and/or r -process elements, and hence are classified as CEMP-s, CEMP-rs, or CEMP-r.
A. M. Riyas +8 more
doaj +1 more source
The Chemical Composition of Carbon Stars. II. The J‐Type Stars
The Astrophysical Journal, 2000 Abundances of Li, heavy elements and carbon isotope ratios have been measured in 12 J-type galactic carbon stars. The abundance analysis shows that in these stars the abundances of s-process elements with respect to the metallicity are nearly normal.
Abia, Carlos, Isern, Jordi
openaire +2 more sources
In silico and in vitro exploration of a tyrosinase for biocatalytic production of catechols
FEBS Open Bio, EarlyView.Tyrosinase from Ralstonia pseudosolanacearum is a promising biocatalyst for producing valuable catechols from monophenol substrates. This tyrosinase is uniquely suited to this due to its high monophenolase : diphenolase ratio. We combined in silico docking and in vivo kinetic characterisation of this tyrosinase with 11 industrially relevant monophenols,
James Britton +6 more
wiley +1 more source
A1045_East_Carbon_High_School_0036_HD_18_fps
, 1980 Film showing the East Carbon High School football team playing against Park City at East Carbon on Sept. 12, 1980. There are shots of the scoreboard, but they are too washed out to see who won.
East Carbon High School
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