Some results of a study conducted in the Sierra Nevada
Mountains west of Lake Tahoe are reported. The study measured
soil impacts resulting from the use of a Caterpillar Tractor
model D6D, a John Deere wheeled skidder model JD-640, and an FMC
Corporation model FMC 21OCA logging vehicle. The three...
Lanthanide (Ln) based molecular complexes have shown great potential as Lewis acid catalysts for the activation of small molecules. Despite the wealth of structural versatility and high catalytic activity of these complexes, they often lack selectivity and recyclability. This hinders their potential for use in large-scale industrial applications where waste...
Hydroxyurea (10mM) blocks the exponential growth of Tetrahymena
pyriformis (GL-I) populations by arresting progress through the cell
cycle once the cells enter S-phase. Autoradiographic analysis reveals
that HU reduces the uptake of tritiated thymidine (³H-TdR) into
macronuclear DNA in S-phase cells to about 1/5 of that in untreated
S-phase cells....
