Download Selected Topics in Environmental Biology. Based on the by Balraj Bhatia PDF

By Balraj Bhatia

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Additional info for Selected Topics in Environmental Biology. Based on the Sessions on Environmental Biology Held at the XXVI International Congress of Physiological Sciences, New Delhi, October 20–26, 1974

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COLDWELL. The hypother- mie effect of tetrodotoxin in the unanaesthetized cat. J. Physiol. 230:477-492, 1973. 6. GUIEU,. D. HARDY. / Appl. Physiol. 29:675-683,1970. 7. , AND T NAKAYAMA· Effects of biogenic amines on central thermo-responsive neurons, in the rabbitj. Physiol. 232:71-«5,1973. 8. , J. SZOLCSÄNYI, AND N. JANCSO. Stimulation and desensitization of the hypothalamic heat-sensitive structures by capsaicin and similar pungent substances in rats and guinea-pigs. J. Physiol. 206:495-507,1970.

SHARP. 108:369^387, 1970. Probing the rostral brainstem of anesthetized, unanesthetized, and exercising dogs and of hibernating and 17. L. LENZI, AND G. ZAMBONI. Threshold of respiratory responses to a euthermic ground squirrels. Federation Proc. preoptic heating during sleep in freely moving cats. 32:1588-1597, 1973. Brain Res. 52:189-201,1973. 8. W. GOLLIVER, AND P. ANAND. CNS regulation of body temperature in euthermic 18. T. HAMMEL. Effects of fever on salivation response in the resting and exercising dog.

Heating the POH of the subjects at ambient temperature of 10 , 20 , and 25°C caused an immediate decrease in metabolic rate until the basal level was reached. POH heatings were accompanied by little change in posture, general quiescence and, at the lower T a 's, cessation of shivering. In contrast to results obtained at the lower ambient temperatures, the animals showed varied responses to POH cooling at an ambient temperature of 30°C Frequently the animals showed no increase in metabolic rate during 10 to 15-min periods of POH cooling as low as 4°C below normal Thy .

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