Now showing items 1-10 of 33
Role of gangliosides in gonadotropin and cholera enterotoxin stimulated steroidogenesis in isolated rat ovarian cells
(Elsevier, 1978-07-28)
Ovarian cells isolated from 26 day old rats responded to hCG (10 ng/ml) and cholera enterotoxin (100 ng/ml) with a forty-five to fifty-fold increase in progesterone production. Both cholera enterotoxin and hCG-stimulated ...
Choosing category size in a stage projection matrix
(Springer-Verlag, 1978-01)
A basic problem associated with choosing category size in a stage projection matrix is described. “Errors of estimation” are large if the category size is chosen too small and “errors of distribution” are large if the ...
Immunological relatedness of two isozymes of 3-phosphoglycerate kinase from the mouse
(Elsevier, 1978-11-15)
EcoRI restriction endonuclease cleavage site map of bacteriophage P22 DNA
(Elsevier, 1978-01-25)
The seven EcoRI restriction endonuclease cleavage sites in bacteriophage P22 DNA have been mapped. The cleavage site map of circularly permuted P22 linear DNA is a circle. The positions of EcoRI sites in the early region ...
Estrogen induction of ornithine aminotransferase in rat kidney slices
(Elsevier, 1978-06-14)
Immunologic titration of kidney extracts from control and estradiol-injected rats with anti-ornithine aminotransferase serum shows that the hormone induces the enzyme by increasing its concentration in the kidney. The ...
Inverse relationship between galactokinase activity and 2-deoxygalactose resistance in Chinese hamster ovary cells
(Kluwer Academic Publishers-Plenum Publishers; Plenum Publishing Corporation ; Springer Science+Business Media, 1978-11)
Galactokinase activity is reduced in 12 independent clones of Chinese hamster ovary cells resistant to 2-deoxygalactose. The frequency of resistant colonies is increased with chemical mutagens. The resistant phenotype is ...
The epidermis and sensory organs of Dugesia tigrina (Turbellaria: Tricladida)
(Springer-Verlag, 1978-10)
The epidermis of D. tigrina was examined using the scanning electron microscope. Both dorsal and ventral surfaces are extremely irregular in contour, as well as being permeated by large numbers of pores. Cilia are restricted ...
The location of highly repetitious DNA in the somatic chromosomes of Drosophila melanogaster
(Springer-Verlag, 1978-01)
In situ hybridization of Drosophila melanogaster somatic chromosomes has been used to demonstrate the near exact correspondence between the location of highly repetitious DNA and classically defined constitutive heterochromatin. ...
Factors affecting body temperatures of toads
(Springer-Verlag, 1978-01)
Factors influencing levels and rates of variation of body temperature ( T b ) in montane Bufo boreas boreas and in lowland Bufo boreas halophilus were investigated as an initial step toward understanding the role of natural ...
Aliphatic hydroxylation by highly purified liver microsomal cytochrome P-450. Evidence for a carbon radical intermediate
(Elsevier, 1978-03-15)
The oxidation of norbornane by a reconstituted liver cytochrome P-450 system affords - and -2-norborneol in a ratio of 3.4:1. The ratio of these products was found to be 0.76:1 when -2,3,5,6-tetradueteronorbornane was ...