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  • Title: [Amplification factor in the thermoregulatory system at different environmental temperatures].
    Author: Slepchuk NA, Rumiantsev GV, Kruk B.
    Journal: Fiziol Zh SSSR Im I M Sechenova; 1978 Feb; 64(2):226-30. PubMed ID: 640090.
    Abstract:
    With the aid of a heater implanted into the hypothalamus, the temperature was raised in the medial preoptic area of the rabbit hypothalamus; Vasodilatation was observed at that in the helix and in the nose skin. The heat emanated during this response was measured with the aid of a dynamic biocalorimeter. The amplification coefficient in the thermoregulation system was calculated as the ratio: the heat emanated by the rabbit during the vascular thermoregulatory response--the heat introduced into the hypothalamus in the course of heating. At the temperature 20% in the calorimeter chamber, the amplification coefficient was 3.9+/-0.8, and at 24 degrees it was as high as 13.6+/-1.0.
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