Black carbon (BC) emission factors were measured for a California commuter rail line fleet of diesel-electric passenger locomotives (Caltrain). The emission factors are based on BC and carbon dioxide (CO2) concentrations in the exhaust plumes of passing locomotives, which were measured from pedestrian overpasses using portable analyzers. Each of the 29 locomotives in the fleet was sampled on 4e...

Fifty one soil samples werecallected from some wadis i.e.,(El Sheikh Soliman,Sidri,El-Arishia and Bodra) of AduRudeis district, which is lies between mountain chains. These were collected to determined their physical chemical properties assess total available contents Fe, Mn, Zn Cu in a fairly intanse sampling scheme.The results indicate that the texture class varies sandy clay loam, The conten...

Duodenal differentiation in normal chick embryos between 15-75 and 20-5 days of incubation was characterized by the following changes: 1. The dry weight increases from 4-1 to 12-4 mg. 2. The alkaline phosphatase activity increases from less than 12 to 426 units. 3. The length of the villi increases sixfold. 4. The height of the epithelial cells at the villous tips increases from 12-9 to 25-9 fi...

Dextromethorphan, a noncompetitive blocker of N-methyl-D- aspartate (NMDA) type of glutamate receptor, at 7.5-75 mg/kg, ip did not induce oral stereotypies or catalepsy and did not antagonize apomorphine stereotypy in rats. These results indicate that dextromethorphan at 7.5-75 mg/kg does not stimulate or block postsynaptic striatal D2 and D1 dopamine (DA) receptors. Pretreatment with 15 and 30...