An abrupt increase in ambient CO2 resulted in a marked respiratory acidosis which took place within 30 min. During this time there was a considerable reduction in the PCO2 difference between arterial blood and inspired gas caused by an increase in ventilations. Prolonged CO2 exposure (24 h) showed that there was some compensation for the acidosis in that plasma bicarbonate concentrations increa...

Abstract Tilapia production in Ghana has been hit with episodes of stress and pathogen-induced mass fish kills which have anecdotally linked to the culture illegally imported Genetically Improved Farmed (GIFT) strains Nile tilapia, Oreochromis niloticus . This study was thus set up comprehensively assess tolerance GIFT strain a native tilapia (the Akosombo strain) following exposures hypertherm...

In an effort to minimize the risks for scientists exposure to the infectious environment and avoiding infectious incident, high-level bio-safety laboratories are designed and constructed to improve experimental safety by preventing laboratory infectious waste causing harm to people or the environment. The possibility of high-risk pathogens spread to the public environment with flow of people an...

The hemodynamic adaptation of the human body to acute and chronic anemia has been extensively studied. There are few reports, however, of investigations of the response of anemic individuals to exercise. The most exhaustive study to date is that of Bishop, Donald and Wade (1), who evaluated 11 patients with anemia at moderate levels of exercise, performed in a supine position at minute ventilat...

Anti-gravity straining maneuver (AGSM) helps to reduce the occurrence of gravity-induced visual disturbances and loss consciousness. An objective assessment AGSM is still missing during ground training. This study evaluated feasibility using electrical impedance tomography (EIT) assess performance AGSM. Eight undergraduates eight teachers majoring in aerospace medicine were included study. expe...

An intrathoracic pressure regulator (ITPR) is a device that can be added to the external end of a tracheal tube to create controlled negative airway pressure between positive pressure ventilations. The resulting downward bias of the airway pressure baseline promotes increased venous return and enhanced circulation during CPR and also during hypovolemic shock. In the present study, we exercised ...

The critical lifesaving steps of BLS are ● Immediate Recognition and Activation of the emergency response system ● Early CPR and ● Rapid Defibrillation for VF. When an adult suddenly collapses, whoever is nearby should activate the emergency system and begin chest compressions (regardless of training). Trained lay rescuers who are able and healthcare providers should provide compressions and ve...

in this paper, an ultra low carbon high strength low alloy grade steel was subjected to a two-step forging processand this was followed by different post cooling methods. the highest strength was obtained at a faster coolingrate due to the highly dislocated acicular ferrite structure with the fine precipitation of microalloying carbides andcarbonitrides. at a slow cooling rate, the strength fel...