effects of acute systemic hypoxia on the cardiovascular system (cys) and respiration of spontaneously breathing cats were studied in two conditions. 1): hypoxic air (6-8% 02 in n2) was given to the animal to induce systemic hypoxia for 20 minutes. hyperventilation at this condition lowered arterial c02 tension (pac02 hypocapnia). 2): in the second run, induction of hypocapnia was prevented by a...

Article history: Received 30 March 2013 Accepted 14 May 2013 Available online xxxx JEL classification: C02 C13 G14

Objectives: After validation of impedance cardiography (ICG) in healthy children, this same device was tested in children with cystic fibrosis (CF) to validate its capability of measuring cardiac output (Q) in this population. Design: Comparative study of ICG vs the indirect Fick (C02) method. Setting: Tertiary care children's teaching hospital. Patients: Twenty-one CF children with mean FEVX o...

ty, lactic acid bacterial count, and sensery properties. Kimchi sainples treated with pressurized C02 had relatiyely a higher pH value, lower titratable acidity, and smaller lactic acid bacterial population than the untreated sample. A sensory eyaluation showed that the soumess alld overall acceptability of trettted kimchi were better than those ef the contro]. The color, flayor and texture wer...

This research is being funded by Ministerio de Ciencia y Tecnología TIC 2003-09557-C02-02.

Despite previous reports of no apparent photorespiration in C. , plants based on measurements of gas exchange under 2 versus 21% O, at varying [CO,], photosynthesis in maize (Zea mays) shows a dual response to varying [O,]. l h e maximum rate of photosynthesis in maize i s dependent on 0, (approximately 10Y0). lhis O2 dependence is not related to stomatal conductance, because measurements were...

Carbon monoxide, produced in the Venus atmosphere by photolysis of C02, is removed mainly by reaction with OH. The radical OH is formed in part by photolysis of H 20., in part by reaction of 0 with H02 • Photolysis of HCl provides a major source of H radicals near the visible clouds of Venus and plays a major role in the overall photochemistry. The mixing ratio of 0 2 is estimated to be approxi...