Results 181 to 190 of about 117,647 (222)

Oxygen-Plasma Defect Engineering of Epitaxial Graphene on 4H-SiC for Enhanced NO<sub>2</sub> Sensing. [PDF]

open access: yesACS Omega
Trinh XT   +11 more
europepmc   +1 more source

A Convenient, Safe, and Atom‐Economical Route to a Large Portfolio of Grubbs‐Type Catalysts for Olefin Metathesis via Four‐Coordinate Ruthenium Alkylidynes

open access: yesAngewandte Chemie, EarlyView.
It may seem counterintuitive to first target a ruthenium alkylidyne when Grubbs‐type ruthenium carbene complexes are the actual goal. In the end, however, this tactic pays valuable dividends in terms of practicality, atom economy, flexibility as well as safety: the new route provides ready access to a large assortment of catalysts for alkene metathesis
Mingxu Cui, Alois Fürstner
wiley   +1 more source

A multi-analytical geoarchaeological study of flint procurement strategies in southern Iberia. [PDF]

open access: yesSci Rep
Ramírez-Amador JL   +3 more
europepmc   +1 more source
Some of the next articles are maybe not open access.

Terracing

2000
Abstract Dry farming by its very nature is typically associated with nearly level or relatively relief-free land. In no small way this is a function of the need for stability vis-à-vis the powerful forces of nature, and holds as true for rock veneers laid down by farmers as it does for naturally deposited sand. Although gravel mulch is a
openaire   +1 more source

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