A Comparative Study of Temperature Fluctuations in Different Parts of the Human Body

By Francis G. Benedict; Edgar P. Slack | Go to book overview
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CONTENTS.
PART I.
PAGE.
Introduction1
Heat production1
Direct and indirect calorimetry3
Purpose of the research3
Localities for temperature measurement4
Natural cavities4
Artificial cavities6
Surface temperature6
Base line in measuring body-temperature6
Errors in rectal-temperature measurement6
Constancy of rectal-temperature7
Factors affecting body-temperature7
PART II.
Methods and apparatus9
Comparison of methods9
Theory of method of measurement used11
Adaptation of method for use12
Apparatus used in the research12
Constants of the apparatus12
Construction of the apparatus14
Measuring instruments14
Thermal-junction system17
Constant temperature oven20
Calibration of mercury thermometers22
Method of operating apparatus23
Calibration of thermal junctions24
Computations for the calibration25
A sample body-temperature experiment27
Computations for the experiment27
Precision of measurement28
Later modification of the apparatus30
PART III.
Discussion of results35
Thermal gradient of the body35
Method of studying the thermal gradient35
Experimental results36
General conclusions with regard to the thermal gradient39
The selection of localities for simultaneous measurement of fluctuations in body- temperature40
Natural cavities40
Temperature measurements in the mouth40
Artificial cavities43
Simultaneous observations of body-temperature in different localities44
Experimental results45
Conclusions72

-iii-

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