Now showing items 21-30 of 69
Immunological characterization of a diabetogenic protein from bovine adenohypophysis
(Elsevier, 1975-04-01)
1. 1. A diabetogenic protein isolated from bovine adenohypophysis which had previously been demonstrated to cause fasting hyperglycemia and decreased glucose tolerance in dogs and man is highly antigenic when injected into ...
Insulin induction of tyrosine aminotransferase in synchronized hepatoma cells
(Elsevier, 1975-04-21)
Addition of insulin to unsynchronized rat hepatoma cells, previously incubated with dexamethasone, promotes a rapid increase in tyrosine aminotransferase activity. Mitotic cells in the presence or absence of colcemid are ...
Technique for chronic electrode or cannula implantation in decorticate animals
(Elsevier, 1975-06)
A surgical technique is described which enables chronic recording of electrophysiological activity and chemical or electrical stimulation in the decorticated animal. This procedure circumvents the problems of inadequate ...
Opponent-process additivity--III : Effect of moderate chromatic adaptation
(Elsevier, 1975-10)
The luminance invariance and additivity of opponent-color equilibria were tested under conditions of chromatic adaptation to unique blue, green, yellow and to (nonunique) 650-nm red lights, varying from about 40 to 2000 ...
Temperature dependent alteration in bacterial protein composition
(Elsevier, 1975-02-03)
When different strains of or are grown at 30[deg] or at 42[deg] and their proteins are compared using SDS-polyacrylamide gel electrophoresis, differences are observed in the protein composition of the cells. In particular, ...
Ultrastructural study of the neural fat-body system in the cockroach Periplaneta americana
(Springer-Verlag, 1975-06)
The neural fat-body system of the ventral nerve cord in the cockroach Periplaneta americana was studied with the light and electron microscopes. This adipose tissue surrounds the connectives and extends over the ganglia. ...
Evidence for an activating factor formed during prostaglandin biosynthesis
(Elsevier, 1975-07-22)
SummaryThe oxygenation of 5,8,11,14-eicosatetraenoic acid by acetone powder preparations of sheep vesicular glands proceeded with a lag or accelerative phase when inhibitory concentrations of NaCN were present. This ...
The effects of rotation and positional change of stump tissues upon morphogenesis of the regenerating axolotl limb,
(Elsevier, 1975-12)
Rotation of a skin cuff 180[deg] around the proximodistal axis of the upper arm in the axolotl results in the formation of multiple regenerates in about 80[deg] of cases after amputation of the limb through the rotated ...
Discrete demographic models with density-dependent vital rates
(Springer-Verlag, 1975-09)
The standard Leslie model of population growth in an age structured population is modified so as to incorporate density-dependent feedback control on each parameter of the standard projection matrix. Under fairly general ...
Multiple regeneration from axolotl limb stumps bearing cross-transplanted minced muscle regenerates
(Elsevier, 1975-07)
Flexor and extensor muscles in the upper arms of axolotls were minced and cross-transplanted. The limbs were amputated 5 and 30 days after mincing. In each experiment a high percentage of the regenerates consisted of ...