The functional significance of many features of the reptilian cardiopulmonary system remains unknown; particularly the importance of cardiac shunts. One hypothesis for a physiological function for shunts is that they play a role in myocardial oxygenation and are therefore important when cardiac work is elevated. In this study we examined cardiac function by monitoring electrocardiograms in red-...

The products of the hydrolysis of sucrose and palatinose by the sucrase-isomaltase complex from rabbit small intestine were investigated by persilylation followed by gas-liquid chromatography and mass spectrometry. If the hydrolysis is carried out in H218O, the heavy oxygen is found exclusively at the Ci of the alpha-glucopyranose formed. The 18O enrichment equals that of the incubation medium....

We show the dependence of the Bayesian and the N2-derived oxygen abundances on the N-enrichment history of the star-forming galaxies. We select 531 metal-poor and ∼20,000 metal-rich galaxies from the SDSS database for this study. Their “accurate” O/H abundances are obtained from Te and P method, respectively. The discrepancies of the Bayesian and N2-derived abundances from these two “accurate” ...

Experimental evidence is presented to show that the O enrichment in the leaf biomass and the mean (timeaveraged) transpiration rate are positively correlated in groundnut and rice genotypes. The relationship between oxygen isotope enrichment and stomatal conductance (gs) was determined by altering gs through ABA and subsequently using contrasting genotypes of cowpea and groundnut. The Peclet mo...

The basic design of what was to become the Triservice Apparatus (TSA) was first described in 1968 [1]. It consisted of two Oxford Miniature Vaporisers (OMV) placed in series, leading to an Oxford Inflating Bellows, a length of corrugated tubing, expiratory valve and face mask. Air was used as a carrier gas, but it was noted that a T piece could be attached to the inlet port of one of the vapori...