Results 191 to 200 of about 712,910 (308)

Trends in C2−C4 Alcohols Dehydration Catalyzed by the γ‐Alumina (100) Surface: The Isobutanol Puzzle

open access: yesChemCatChem, Volume 18, Issue 19, 14 October 2026.
The calculated kinetic constant of isobutanol dehydration on the γ‐alumina (100) surface is underestimated with respect to other alcohols and to experimental data. The steric hindrance of Cβ$\rm {C}_{\beta }$ hampers Hβ$\rm {H}_{\beta }$ elimination. The relevance of the (100) surface for catalyzing dehydration of alcohols with bulky Cβ$\rm {C}_{\beta }
Pierre Marmey   +3 more
wiley   +1 more source

Integrating ZooMS and taphonomy further highlights differential processing of animal and Neandertal carcasses in the Quina Mousterian at Les Pradelles (Marillac‐le‐Franc, southwest France)

open access: yesJournal of Quaternary Science, Volume 41, Issue 7, Page 1125-1140, October 2026.
ABSTRACT The cave of Les Pradelles (Marillac‐le‐Franc, France) was repeatedly visited by Neandertals ~55 000 years ago and is a key site in discussions of Neandertal cannibalism. Excavations between 1967 and 1980 (Vandermeersch) and between 2001 and 2013 (Maureille/Mann) produced a rich faunal assemblage (>20 000 bones), alongside Quina Mousterian ...
Pauline Raymond   +7 more
wiley   +1 more source

Asynchronous population trends stabilize mesopredatory coral reef fish communities in the face of global change

open access: yesOikos, Volume 2026, Issue 10, October 2026.
Biodiversity can underpin stability in communities, allowing them to withstand environmental fluctuations without changes in aggregate properties like total abundance or biomass. We investigated the influence of biodiversity on two crucial population‐level mechanisms governing abundance stability in mesopredatory coral reef fishes: 1) ‘community ...
Rucha Karkarey   +14 more
wiley   +1 more source

Home - About - Disclaimer - Privacy