A Comparative Study of Temperature Fluctuations in Different Parts of the Human BodyCarnegie Institution of Washington, 1911 - 73 Seiten |
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A Comparative Study of Temperature Fluctuations in Different Parts of the ... Francis Gano Benedict,Edgar P. Slack Keine Leseprobe verfügbar - 2015 |
Häufige Begriffe und Wortgruppen
acid Agar alloy animals antimony apparatus axilla body-temperature bulb calibration Casein food cavity cent centimeters clinical thermometer coil constant constantan Constituents copper correction curves for experiment DATA ON RAT Days CHART determined dietary Diopside electromotive force element error expansion coefficient Experiment of January experimental extrapolation fæces female fixed points flask Food eaten furnace galvanometer gas thermometer Gliadin food glutenin gradient Grams groin heat Holborn Holborn and Day hydrochloric acid Intake iridium Lard left axilla male manometer measurements melting melting-point mercury metal method microvolts Milk food mixed food mometer N-balance N-utilization nickel Nitrogen balance Normal rate nutritive observations obtained ohms palladium perature period platin-iridium platinum porcelain potentiometer precipitate pressure Protein-free milk pure rate of growth readings rectum Reichsanstalt resistance rhodium scale shown sole protein standard Starch TABLE temperature Temperature curves thermal junction thermal-junction thermo-element tion tube wire Zein zinc
Beliebte Passagen
Seite 1 - The expenses of this investigation were shared by the Connecticut Agricultural Experiment Station and the Carnegie Institution of Washington, DC 1 Magendie, F.,Ann.
Seite 68 - Apparently the animal organism is capable of drawing upon its reserve for the purposes of sustaining the growth process for a considerable time and to a considerable extent.
Seite 64 - The upper limit of the size of an animal is determined by heredity. The stature to which an animal may actually attain, within this definitely fixed limit, is directly related to the way in which it is nourished during its growing period.
Seite 5 - Ann. d. chim. et d. phys. (2), 41, p. 247, 1829. which to maintain the gas (air) at constant pressure within, and connected also with a reservoir of olive oil ; the expansion of the air in the bulb displaced a proportionate amount of oil, which was caught and weighed and the temperature calculated. With this apparatus Prinsep made excellent temperature measurements, chiefly of the melting-points of the alloys of gold, silver, and platinum, which bear his name and are still sometimes used. The usefulness...
Seite 3 - It is no disparagement of the present system of temperature definition to say that the gas thermometer itself is a complicated and cumbersome instrument to use in any of the forms which have hitherto been devised, and possesses limitations, both of range and accuracy, which are difficult to overcome. One consequence of this, particularly in the region of high-temperature measurements, is that temperatures easily come to be regarded with unwarranted confidence in the hands of those who have never...
Seite 65 - In the first measurements of these temperatures, the elements were left on the bulb through several runs, in consequence of which the readings of the outside elements on the bulb steadily decreased, whereas the temperatures derived from the inside elements are fairly constant. The contamination of the inside element was found to be less in amount and distributed over a region of more constant temperature. For insulating the thermo-element wires from the bulb and furnace, capillary tubes, both of...
Seite 127 - ... interpretation. The metals which, have commonly been used for the purpose are not obtainable commercially in sufficiently uniform purity to guarantee an accuracy within 1° at the higher temperatures. This is too large an error for the interpretation of the gas thermometer scale in its present refinement. No effort has been made to prepare metals in our own laboratory, of exceptional purity for the reason that such metals would not be available for general use and would therefore be of little...
Seite 33 - This changed the temperature gradient considerably without materially improving it ( see Furnace II seq. ), after which a third coil was prepared with still closer windings, which proved to be considerably overcompensated and was rejected. In all, we made five separate trials of this kind, in the last two of which (Furnaces III and IV ) a thick-walled iron tube was substituted for the porcelain furnace tube in the hope of gaining increased uniformity of temperature through the increased heat conductivity...
Seite 8 - On the other hand the figures show that, on the average, the loss of body-weight was slower with tryptophane than without it. But this result might well be expected, even if the tryptophane administered undergoes utilization without directly contributing to tissue formation or structural maintenance. If it serves as a basis for the elaboration of a substance absolutely necessary for life — something, for instance, of an importance equal to that of adrenaline — then, in starvation, or when it...
Seite 8 - If it serves as a basis for the elaboration of a substance absolutely necessary to life — something, for instance, of an importance equal to that of adrenaline — then, in starvation, or when it is absent from the diet, a supply is likely to be maintained from the tissueproteids; the demand for it would become one of the factors determining tissue breakdown. In the case of young animals which directly benefit from the addition of a protein constituent, otherwise absent from their diet, to the...