Various breathing training programmes may be helpful for adults with asthma. The main therapeutic aim for many of these programmes is the correction of dysfunctional breathing. Dysfunctional breathing can be viewed practically as a multidimensional entity with the three key dimensions being biochemical, biomechanical and psychophysiological. The objectives of this review are to explore how each...

Low oxygen breathing has been the subject of considerable research in recent years. The present review aims to determine physiological and neuropsychological benefits low-oxygen training. Specifically, we explored ways low affects hormones, neurotransmitters growth factors responsible for neuroplasticity, higher cognition positive emotions. In addition, shed light on importance hypoxia expand c...

Several types of breathing circuits are available in anaesthesia practice.[1] Complications have been reported with almost all the breathing circuits.[2,3] Pre-use check of anaesthesia machine and circuits is recommended to avoid these complications.[4] Latest addition to the armamentarium of breathing circuit is Limb-O circuit [Figure 1]. This circuit is a ‘“double lumen’” single-tube breathin...

Kitchen indoor environment is not always satisfied due to unfavourable thermal condition and poor air quality in domestic cooking especially for Chinese-style residential kitchen (CRK). Traditional CRKs are only equipped with a range hood natural make-up from window openings or cracks. Thus, this paper made numerical simulation study under three make-ups. Three kinds of conditions were selected...

Recently, open-type push-pull ventilation systems have been widely employed as effective substitutes for the conventional local exhaust ventilation system, and have prevailed at many welding workshops in Japan. In this study, the effect of the uniform velocity on carbon dioxide (CO2) shielding arc welding was examined by laboratory experiments. The ventilation system examined in the experiments...

We report the development and testing of a simple breathing circuit that maintains isocapnia in human subjects during hypoxic hyperpnea. In addition, the circuit permits rapid switching between two gas mixtures with different partial pressures of oxygen. Eleven volunteers breathed repeated cycles of exposure to air (2 min of 21% O(2), balance N(2)) and hypoxia (2 min of 8.3+/-0.1% O(2), balance...

The air conditioning system of most commercial aircrafts consists a main system, which operates on the principle mix ventilation, and personalized called gasper. Field studies show that passengers prefer to keep gasper parcially open or redirect it away from head due discomfort. Therefore, there is demand characterize flow this device for future improvements. In way, present work aims experimen...

Current situation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1 Education for the liberal professions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2 Elite education . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 General...