Now showing items 11-20 of 30
Horizontal compensatory eye movements in goldfish ( Carassius auratus )
(Springer-Verlag, 1974-03)
1. Horizontal eye and head movements made by freely swimming goldfish have been recorded cinematographically and analyzed frame-by-frame.
Likelihood analysis of geographic variation in allelic frequencies
(Springer-Verlag, 1974-01)
Likelihood estimation and testing procedures are described for treating geographic variation in allelic frequencies as a logistic function of environmental variables. The basic response curve is sigmoidal, and avoids the ...
Acetylglutamate kinase: A feedback-sensitive enzyme of arginine biosynthesis in neurospora
(Elsevier, 1974-09-23)
A radioactive assay was developed for the arginine-synthetic enzyme, acetylglutamate kinase (EC 2.7.2.8). Activity of the enzyme was demonstrated in crude extracts of Neurospora mycelium. Precipitation with ammonium sulfate, ...
Bilirubin binding to myelin basic protein, histones and its inhibition in vitro of cerebellar protein synthesis
(Elsevier, 1974-06-18)
SummaryThe binding of unconjugated bilirubin to bovine CNS myelin basic protein and to lysine and arginine rich histones has been demonstrated by means of difference spectroscopy and circular dichroism spectroscopy. This ...
Density dependent selection in parthenogenetic and self-mating populations
(Elsevier, 1974-04)
The consequences of density dependent selection on genetically heterogeneous, diploid populations reproducing by self-mating or various parthenogenetic mechanisms is investigated. A logistic fitness function that depends ...
Relationships between glucose, insulin and glucagon during fasting in late gestation in the rat
(Elsevier, 1974-07-15)
Plasma glucose, insulin and glucagon were measured in pregnant and age-matched virgin rats in the fed state and after fasting 6, 48 or 120 hours during day 16-21 of gestation. The fed state in pregnancy was characterized ...
A criterion for using chloramphenicol to define different processes in the initiation of DNA synthesis in bacteria
(Elsevier, 1974-07)
A criterion is proposed which must be met in order to demonstrate that two different proteins are required for the initiation of DNA synthesis, with each protein being synthesized at a different time prior to initiation, ...
Structural resemblance of cytochrome P-450 isolated from and from rabbit liver microsomes
(Elsevier, 1974-09-09)
The cytochrome P-450 of (P-450cam) and that of phenobarbital-induced liver microsomes (P-450LM) differ markedly in substrate specificity, solubility, and the requirement of the former for an iron-sulfur protein and the ...
Homogeneous cytochrome b5 from human erythrocytes
(Elsevier, 1974-09-09)
Homogeneous cytochrome b5 has been isolated from large volumes of human erythrocytes by sequential chromatography on DEAE-cellulose, Amberlite CG-50, Bio-Gel P-60, and DEAE-Sephadex A-50. A molecular weight of 15,300 was ...
An electron microscopic autoradiographic study of proline incorporation by mouse lingual epithelium
(Springer-Verlag, 1974-12)
Mouse lingual epithelium incorporates significant amounts of L-proline-2, 3-H 3 one hour after intraperitoneal injection of the tritiated amino acid. All viable cell strata incorporated approximately equal amounts of proline ...