نتایج جستجو برای: respiratory system
تعداد نتایج: 2405833 فیلتر نتایج به سال:
For millennia, people have regarded life as being synonymous with breathing. Life begins and ends with breathing. The Bible states that God " breathed into [Adam's] nostrils the breath of life, " and then later used part of Adam's ventilatory apparatus — a rib — to give life to Eve. In the fourth and fifth centuries BC, writings attributed to Hippocrates suggested that the primary purpose of br...
Pulmonary gas exchange is disturbed during general anaesthesia; both oxygenation and elimination of carbon dioxide are impaired. The shape of the chest wall alters after induction of anaesthesia-paralysis in recumbent subjects, and its motion during inspiration is also altered. The mechanical properties of lung and chest wall are also affected and FRC may be reduced. Inspired gas distribution c...
مقدمه. سندرم زجرتنفسی نوزادان (infant respiratory distress syndrome) ، یک بیماری حاد ریوی است که معمولا نوزادان نارس به آن مبتلا می شوند. در این بیماری، ریه نابالغ و غیر عملکردی است. در واقع نقص در سورفاکتانت باعث ایجاد این بیماری می شود. سورفاکتانت باعث کاهش کشش سطحی آلوئول ها می شود و در نتیجه از کلاپس و بسته شدنشان جلوگیری می کند. پروتئین abca3 ترنسپورتر لیپیدهای سورفاکتانت، نقش بسیار مهمی د...
Background and Aim: Quality management, as an organizational strategy, helps enhance hospital effectiveness and efficiency. This study aimed to examine the effect of a quality management model on the efficiency of the respiratory intensive care unit in Labafijejad Hospital, Tehran in 2013-14. Materials and Methods: This was a participatory action research conducted in the respiratory intens...
Background: Although one of the most important occupational hazards in cement industry is the effect of cement dust exposure on respiratory system, there is controversy about the relationship between exposure to cement dust and respiratory symptoms and pulmonary function impairment. Our aim was to assess the effects of cement dust exposure on respiratory symptoms and lung capacities of cement w...
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