A New Respiration Calorimeter

The Respiration Calorimeter

In considering the demands of the body for nourishment and the purposes which foods serve in the body, it was natural that experimenters should direct their attention for a time largely to those questions which were most readily studied, such as the amounts of food eaten and their relation to growth, health, and other physical conditions. The chemical composition of different foods and the purp...

Test of the new GR9 graphite calorimeter

Myxothiazol, a new antibiotic interfering with respiration.

Myxothiazol, a new antibiotic from the myxobacterium Myxococcus fulvus, inhibited the growth of many yeasts and fungi at concentrations between 0.01 and 3 micrograms/ml. It was generally inactive against bacteria. The inhibitory effect was cytostatic. With Candida albicans, Saccharomyces cerevisiae, and Mucor hiemalis, the growth inhibition was neutralized by glucose. Soon after being added to ...

A New Method of Artificial Respiration

The two main recognized methods of artificial respiration, namely, Schafer's and Silvester's, depend for their efficacy on the elastic recoil of the chest wall and diaphragm, which can happen only when the integrity and tonicity of the muscles of the respiration are maintained. Schafer's (1907-8) method consists in Maying the subject prone, and pressing gradually for three seconds with both han...

A new rate law describing microbial respiration.

The rate of microbial respiration can be described by a rate law that gives the respiration rate as the product of a rate constant, biomass concentration, and three terms: one describing the kinetics of the electron-donating reaction, one for the kinetics of the electron-accepting reaction, and a thermodynamic term accounting for the energy available in the microbe's environment. The rate law, ...