Results 171 to 180 of about 191,892 (341)
The GeologistIn the year 1851 I read a paper before the Geological Society “On the Superficial Accumulations and Surface-markings in North Wales,” in which I attempted to show that there had been two glacier epochs in that country, one before, and the other after the deposition of the boulder drift, which was ploughed out of some of the larger valleys by the ...
openaire +2 more sources
Chemistry &Biodiversity, EarlyView.Compound A3bn exhibited strong binding affinities for HDAC2, HDAC6, and HDAC8. A3bn’s anticancer IC50 values were similar to those of SAHA. Cell death resulted from the extrinsic apoptotic pathway. Compound A3bn, a hydrophilic linker, which promotes zinc coordination, may be the cause of its increased activity across HDAC isoforms. ABSTRACT Unregulated
Nedaa A. Abd Al Rahim +8 more
wiley +1 more source
Cereal Chemistry, EarlyView.ABSTRACT Background and Objectives This study evaluated the effect of seed shape on the composition, functional, and quality properties of pea flours and protein isolates. Wrinkled‐seed (WPAs) and round‐seed (RPA) pea accessions were selected from a genome‐wide association study panel.
Cassia Galves +4 more
wiley +1 more source
Photoswitching of the Two‐Photon Absorption of Donor‐Acceptor Substituted Dithienylethenes
ChemistryEurope, EarlyView.Switching two‐photon absorption: Donor‐acceptor substituted dithienylethenes are shown to switch their two‐photon absorption properties upon light‐induced electrocyclic isomerization. In this work the structural and electronic integration of push–pull systems with photoactivatable dithienylethenes (DTEs) is demonstrated.
Francisco G. Blandón‐Cumbreras +8 more
wiley +1 more source
Accelerating Glacier Area Loss Across the Andes Since the Little Ice Age
Geophysical Research LettersAndean glaciers are losing mass rapidly but a centennial‐scale context to those rates is lacking. Here we show the extent of >5,500 glaciers during the Little Ice Age chronozone (LIA; c. 1,400 to c.
Jonathan L. Carrivick +8 more
doaj +1 more source
ChemistryEurope, EarlyView.Replacement of cobalt in the organometallic B12‐cofactor methylcobalamin (MeCbl) by rhodium furnishes a structural mimic with a significantly stronger metal–carbon bond. This synthetically challenging formal metal‐mutation converts the naturally optimized biological methyl‐transfer catalyst MeCbl into a designed antivitamin B12, an inactivated B12 ...
Florian J. Widner +8 more
wiley +1 more source
The Canadian Journal of Chemical Engineering, EarlyView.Abstract The synthesis and characterization of an amphiphilic nitroxide to be used as a controlling agent in a nitroxide‐mediated living radical polymerization in aqueous dispersion media is presented. In the first stage of nitroxide synthesis (phthalimide protection), two reaction methods were employed: traditional and microwave.
Enrique García‐Leal +3 more
wiley +1 more source