Results 201 to 210 of about 121,000 (287)

Eine kohlenstoffinduzierte Oberflächenrekonstruktion auf einem Fischer‐Tropsch‐Katalysator im Betrieb

open access: yesAngewandte Chemie, EarlyView.
Nach einer weitverbreiteten Annahme erfährt der Cobalt‐basierte Fischer‐Tropsch‐Katalysator eine anfängliche Aufrauung, die zu einer Aktivitätssteigerung führt und vom hohen chemischen Potential des Kohlenstoffs getrieben wird. In der vorliegenden Operando‐STM‐ und DFT‐Untersuchung simulieren wir solche Bedingungen.
Sebastian Kläger   +3 more
wiley   +1 more source

A Carbon‐Induced Surface Reconstruction on an Operating Fischer–Tropsch Catalyst

open access: yesAngewandte Chemie International Edition, EarlyView.
It is widely believed that a cobalt Fischer–Tropsch catalyst initially undergoes an activity‐enhancing roughening, driven by the high chemical potential of carbon. In this operando STM and DFT study, we simulate such conditions. We show that, instead, a triangular stacking‐fault reconstruction may form, leaving the catalytic activity unchanged ...
Sebastian Kläger   +3 more
wiley   +1 more source

The Potential Role of Synovial T Cell Infiltration Following Knee Joint Injury in Symptoms and Progression to Osteoarthritis

open access: yesArthritis &Rheumatology, EarlyView.
Objective Identification of osteoarthritis (OA)–specific synovial inflammatory pathways and their temporal relevance is critical for therapeutic targeting. We compared mononuclear inflammatory/immune cell responses following joint injury that does or does not lead to OA to define bona fide OA‐associated cellular events.
Babak Moradi   +10 more
wiley   +1 more source

Anti‐carbamylated fibrinogen autoantibodies of IgG and IgA isotypes contribute to a better prognostic stratification in very early rheumatoid arthritis: data from the French national ESPOIR cohort

open access: yesArthritis &Rheumatology, Accepted Article.
Objective To investigate the prevalence and longitudinal evolution of anti‐carbamylated fibrinogen antibodies (ACa‐Fib) of IgG and IgA isotypes in early rheumatoid arthritis (RA), and determine whether these antibodies provide additional diagnostic and prognostic information beyond anti‐cyclic citrullinated peptide antibodies (anti‐CCP) and rheumatoid ...
Pauline Brevet   +11 more
wiley   +1 more source

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