Now showing items 1-10 of 11
Seasonal variation of metabolism and thyroid activity in the Mexican ground squirrel Citellus mexicanus
Metabolic measurements in thermal neutrality for the Mexican ground squirrel, Citellus mexicanus, in-dicated a mean summer metabolism of 1.10± .08 cc 02/gm/hr and a mean winter metabolism of .56±.08 cc 02/gm/hr. Animals ...
Genetic studies of mutants of Neurospora crassa lacking ornithine transcarbamylase
Arginine has long been of interest to chemists, biochemists and biologists because of its close relation-ship to urea. Srb and Horowitz (1944) isolated many arginineless mutants of Neurospora crassa and found the mutants ...
Temperature regulation and metabolic rhythms in populations of the house sparrow Passer domesticus
This study was an attempt to correlate the influences of the environmental stresses of high ambient temperatures and high humidities on selected physiological properties related to temperature regula-tion in the house ...
The effects of pyridoxal and ammonium ion on the active transport of methionine and other amino acids in H. diminuta
The uptake and accumulation of methionine and other amino acids in the cestode H. diminuta is studied with respect to the influence of pyridoxal, pyridoxine, and ammonium ion. It is found that neither pyridoxal nor ...