6 hr to 6 weeks by liquid scintillation spectroscopy. Ethyl acetate extracts of gland homogenates and cell fraction sus pensions were similarly analyzed to determine the degree of binding of the carcinogen in this tissue. Less than 30% of the total hydrocarbon injected was found in the glands of animals sacrificed during the 1st week. The carcinogen content of the gland declined to 13, 7, and 5...

1. Mitochondrial and cytoplasmic ribosomes of Euglena gracilis differ in their total RNA and protein content. 2. Mitochondrial ribosomes dissociate to subunits at higher Mg(2+) concentrations than do cytoplasmic ribosomes. 3. A separable 5S RNA is obtained from cytoplasmic and chloroplast ribosomes, but not from mitochondrial ribosomes. 4. For protein-synthesizing activity with a natural mRNA, ...

Water-extractable organic matter is the most active and mobile form of soil carbon. The other fraction extremely biolabile carbon constituent microorganisms. Both these fractions play an essential role in agrocenoses global cycle on our planet. aim work was to estimate content water-extractable as well that microbial origin typical chernozems (Protocalcic Chernozems) different land-use types. P...

The inhibitory activity of aqueous extracts of field-grown sorghum (Sorghum bicolor cv. Bird-a-boo) herbage and roots was quantitatively indexed by three aspects of cumulative cress (Lepidium sativum cv. Curlycress) seed germination: the germination onset; weighted mean rate; and final germination percentage. Extract potency was greatest for herbage collected four weeks after planting but decli...

Nigerian cocoa farmers mostly use copper-based fungicides to control black pod disease of Theobroma cacao. Heavy metals are potentially toxic to soil microbes and soil environment in general. Toxicity depends on chemical association in soil. For this reason, determining the chemical forms of metals in soils is important to evaluate their mobility and bioavailability. Sequential extraction was u...

Phytoremediation is a technology for extracting or inactivating pollutants in soil. Echinodorus osiris (E. osiris) is a fast growing perennial wetland plant that is common in tropical and subtropical areas and has a high tolerance to cadmium (Cd). However, the absorption dynamics, subcellular distribution and accumulation of Cd by E. osiris had not been investigated. In this paper, hydroponic e...

This study investigates the effects of immobilizing fungi on straw’s performance as an oil sorbent. The buoyancy straw with was found to be unaffected by immobilization process. Even when sorbed oil, floated water’s surface throughout 14-day test period. sorption kinetics appeared similar in and without immobilized fungi, regardless beaker shaking. However, fraction non-extractable higher shaki...

We consider the problem of quantifying the information shared by a pair of random variables X1,X2 about another variable S. We propose a new measure of shared information, called extractable shared information that is left monotonic; that is, the information shared about S is bounded from below by the information shared about f(S) for any function f . We show that our measure leads to a new non...