Now showing items 21-30 of 1682
Postnatal ontogeny of acetylated and non-acetylated B-endorphin in rat pituitary
(Elsevier, 1983)
Extracts of the anterior lobe and intermediate lobe of postnatal (P) (Day P1, P7, P14, P21, P28, P35, P42) and adult male Spraque-Dawley rats were analyzed by both a Beta-endorphin (B-END) radioimmunoassay and a radioimmunoassay ...
Individual and population sex allocation patterns
(Elsevier, 1987-02)
A variety of sex allocation models is considered in which (i) the reproductive returns on investment in males differ from the returns on investment in females, (ii) the amounts of resources available for reproduction vary ...
There is no support for Jensen's hypothesis of nemerteans as ancestors to the vertebrates
(Kluwer Academic Publishers; Springer Science+Business Media, 1997-01)
Nemerteans (phylum Nemertea) have been viewed by mostzoologists as descended from, or closely related to,the flatworms. This view is based mainly on theirsupposedly acoelomate body. Their ancestry, however,is a point of ...
Identification and characterization of a human transthyretin variant
(Elsevier, 1987-10-14)
An apparent Mr variant of plasma transthyretin (TTR), previously detected using 2-D PAGE, is the first reported occurrence of this type of human TTR variant. We characterized the variant TTR to determine the nature of this ...
Substituent effects on the oxidation of substituted biphenyl congeners by type II methanotroph strain CSC1
(Springer-Verlag, 2005-05)
The oxidation potential of type II groundwater methanotroph, strain CSC1, expressing soluble methane monooxygenase, was measured in the presence of 10 ortho -substituted biphenyls with varying electronics, sterics, and ...
Renewed interest in the polyphosphoinositides
(Elsevier, 1984-02)
The significance of the enhanced cellular phosphatidate and phosphatidylinositol turnover which occurs in response to specific extracellular messengers has been the subject of much interest and speculation. Until recently, ...
On the dynamic order of structured Escherichia coli growth models
(Wiley Subscription Services, Inc., A Wiley Company, 1987-04-20)
Reliable dynamic descriptions of cellular growth are important for many practical applications including bioreactor design and control. A chemically structured growth model of Escherichia coli has been formulated and ...
Effect of divalent metal ion binding on the Raman spectrum of ATP in aqueous solution
(Elsevier, 1970-01-23)
The apparent dissociation constants for the secondary H+ of HATP-3, CaHATP-1, MgHATP-1 and ZnHATP-1 were determined by studying the pH dependent frequency of a particular line in the Raman spectrum of ATP. We obtained the ...
Protein tyrosine phosphatases in disease processes
(Elsevier, 1994-12)
Given the importance of tyrosine phosphorylation of proteins in signalling pathways, it is perhaps not surprising that protein tyrosine phosphatases (PTPs) are involved in the pathogenesis of certain human diseases. A PTP ...