To select the best available packing material for malodorous organic gases such as toluene and benzene, biofilter performance was compared in biofilters employed different packing materials including porous ceramic (celite), Jeju scoria (lava), a mixture of granular activated carbon (GAC) and celite (GAC/celite), and cubic polyurethane foam (PU). A toluene-degrading bacterium, Stenotrophomonas ...

A radiometric assay to quantify activation of the contact system of human plasma is described. The assay utilizes tritiated bovine factor IX as a probe and measures release of its radiolabeled activation peptide. which is soluble in trichloracetic acid. Using celite as an activator. rate of factor IX activation increased asymptomatically as celite concentration increased from 0 to 5 mg/mI plasm...

Thromboelastography (TEG) using disposable plastic cups and pins was performed with native whole blood (native group) in 17 nonpregnant volunteers, 134 healthy term pregnant women (>36 wk gestation), and 69 postpartum women. Thromboelastography was also performed with celite-activated whole blood (celite group) in 15 nonpregnant female volunteers, 38 healthy term pregnant women, and 34 postpart...

We investigated a novel process for production of ethanol from glycerol using the yeast Pachysolen tannophilus. After optimization of the fermentation medium, repeated-batch flask culture was performed over a period of 378 hr using yeast cells immobilized on Celite. Our results indicated that the use of Celite for immobilization of P. tannophilus was a practical approach for ethanol production ...

Sand flies (Diptera: Psychodidae) serve as vectors for transmitting protozoan parasites, Leishmania spp., that cause the disease called leishmaniasis. The main approach to controlling sand is use of chemical insecticides. discovery alternative methods their control needed because potential health risks insecticides and development fly resistance these pesticides. biomineral produced by diatoms ...

Immobilised Ts OYE on Celite carrier catalyses the bioreduction of activated alkenes in pure organic solvent, providing full conversion to (chiral) products.

A radioimmunoassay (RIA) of progesterone in urine is described. After the addition of labelled progesterone, morning urine was extracted with n-hexane adn the residue was either directly subjected to RIA, or chromatographed on celite prior to RIA. The progesterone from celite chromatography was radiochemically pure. RIA after chromatography was therefore considered valid. The non-chromatographe...

Fletcher trait plasma failed to generate kinin and developed only a small amount of arginine esterase activity at an abnormally slow rate following surface activation. Neither defect was due to a deficiency of Hageman factor (HF, factor XII) or kininogen or to an excessively rapid inactivation of evolving kinin. Pyrex pretreated with Fletcher trait plasma did not generate kinin normally in fres...