نتایج جستجو برای: respiratory system

تعداد نتایج: 2405833  

Journal: :British medical journal 1978
R J Fallon

2001
Walter F. Boron

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...

Journal: :Canadian Anaesthetists' Society journal 1979
K Rehder

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...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شهید چمران اهواز - دانشکده علوم 1394

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...

Journal: :archives of clinical infectious diseases 0
masoud mardani infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran; infectious diseases and tropical medicine research center, shahid beheshti university of medical sciences, tehran, ir iran. tel: +98-2122439963/8, fax: +98-2122439964

اشرفی, انسیه, مصدق راد, علی محمد,

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...

ژورنال: طب کار 2012
اصلانی, مریم, امینیان, امید, صادق‌نیت‌حقیقی, خسرو,

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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