Now showing items 31-40 of 83
Bilateral tectal innervation by regenerating optic nerve fibers in goldfish: A radioautographic, electrophysiological and behavioral study
(Elsevier, 1977-06-17)
Following unilateral enucleation and optic nerve crush in goldfish, the remaining nerve regenerates and innervates both optic tecta. Approximately 5% of the nerve fibers reach the ipsilateral optic tectum (IOT) via the ...
Effects of acute ovariectomy on the lordosis response of female rats
(Elsevier, 1977-08)
The sexual receptivity of intact females with 4- or 5-day estrous cycles was compared to that of other females which had been ovariectomized at particular times during their cycles. The quality and frequency of lordosis ...
A morphometric method for correcting phytoplankton cell volume estimates
(Springer-Verlag, 1977-06)
Cell volume calculations are often used to estimate biomass of natural phytoplankton assemblages. Such estimates may be questioned due to morphological differences in the organisms present. Morphometric analysis of 8 species ...
The timing of morphogenetic events in the regenerating forelimb of the axolotl, Ambystoma mexicanum,
(Elsevier, 1977-05)
The timing of morphogenetic events in the regenerating forelimb of the axolotl was investigated by rotation of limb coverings at well-defined stages in the regenerative process. Both the skin covering the stump and the ...
Observations on chytridiaceous parasites of phanerogams
(Springer-Verlag, 1977-09)
Host symptoms and morphology of the endo-and epibiotic stages of a Physoderma on Phalaris arundinacea L. are described. It is considered identical with a Physoderma on Agropyron repens earlier described. Both are referred ...
The enzymatic exchange of the acyl group of acyl dihydroxyacetone phosphate with free fatty acids
(Elsevier, 1977-01-10)
Ehrlich ascites cell microsomes catalyze the exchange of the acyl group of acyl dihydroxyacetone phosphate with free fatty acids. The reaction does not require ATP and CoA.
Brain stimulation reward: Evidence for an adrenergic contribution in the rat
(Elsevier, 1977-07)
Two centrally active inhibitors of phenylethanolamine-N-methyltransferase (PNMT: E.C. 2.1.1.28), the terminal enzyme for epinephrine biosynthesis in the brain, and a centrally active blocker of adrenergic synapses produced ...
Lateral spread of light adaptation in the rat retina
(Elsevier, 1977)
Recordings from the rat optic tract fibers were used to assess changes in sensitivity under various conditions of adaptation. An adapting background which excites only a small fraction of the rods can yet cause a several-fold ...
When are two qualitative taxonomic characters compatible?
(Springer-Verlag, 1977-06)
A proof is given of a procedure that has previously appeared claiming to determine when two amino acid positions on a protein could both possibly be divergent taxonomic characters. An algorithm for executing this procedure ...
Regional chromosomal localization of the human gene for galactose-1-phosphate uridyltransferase
(Springer-Verlag, 1977-01)
In the progeny of somatic cell hybrids formed by fusion of human lymphocytes and Chinese hamster mutant cells, a single human chromosome A2 was selectively retained when grown in appropriate medium.