نتایج جستجو برای: ظرفیت حیاتی پرفشار fvc
تعداد نتایج: 33507 فیلتر نتایج به سال:
دراین پژوهش اثر نوسان سالانه کمربند پرفشار جنب حاره (آزورز) در منطقه شرق مدیترانه و زبانه پرفشار سیبری در ایران بر چرخندزایی دریای مدیترانه و بارش ایران در دوره 1960 تا 2002 بررسی شده است. نتایج بررسی تغییرات بازه های نوسان سالانه کمربند پرفشار جنب حاره در شرق مدیترانه و سیبری و ارتباط آن ها با بارش سالانه چند ایستگاه همدیدی در کشور نشان می دهد که بین بازه نوسان سالانه کمربند پرفشار جنب حاره در...
در این تحقیق زمانیابی ورود و آغاز فعالیت پرفشار سیبری به سواحل جنوبی دریای خزر با روش سینوپتیکی مطالعه شده است. در این مطالعه، داده های دمای حداقل و فشار سه ایستگاه انزلی، بابلسر و گرگان، طی دوره آماری 1971 الی 1980 م. برای ماههای سپتامبر، اکتبر، نوامبر و دسامبر، به عنوان ایستگاههای منتخب استفاده شد. معیار تشخیص پرفشار سیبری، حضور زبانه سامانه مذکور با خط هم فشار حداقل 1020 هکتوپاسکال در سواحل ...
Respiratory dysfunction is a major source of morbidity and mortality in patients with spinal cord injury (SCI) and an abdominal binder improves efficiency of the diaphragm and inturn has an effect on respiratory function. To find out the effect on Pulmonary Function with Abdominal Compression Binder in Adult Paraplegics. Method: 20 Paraplegic was selected, informed consent was taken. In sitting...
Purified iron-saturated human lactoferrin (LF) was assessed in vivo for effects on the survival rates of C57BL x DBA/2 f, (hereafter called BD2F,) (Fv-2") mice and titers of spleen focus-forming viruses (SI-1-V) in BD2F, and DBA/2 (Fv-2") mice inoculated with the polycythemiainducing strain of the Friend virus complex (FVC-P). LF prolonged the survival rates and decreased the titers of SFFV in ...
BACKGROUND Persons with vertebral fracture may have reduced pulmonary function, but this association has not been much studied. The aim of this cross-sectional study was therefore to examine the relationship between vertebral fracture and pulmonary function in a general, elderly population. METHODS Vertebral morphometry was used for vertebral fracture assessment in 2132 elderly men (n = 892) ...
BACKGROUND AND OBJECTIVES Lung function depends nonlinearly on age and height, so that the use of age and height specific reference values is required. The widely used age and height specific GLI (Global Lung Initiative) z-scores derived from cross-sectional data, however, have not been proven for validity in an elderly population or for longitudinal data. Therefore, we aimed to test their vali...
The Global Initiative of Chronic Obstructive Lung Disease (GOLD) guidelines define chronic obstructive pulmonary disease (COPD) in subjects with FEV(1)/FVC <0.7. However, the use of this fixed ratio may result in over-diagnosis of COPD in the elderly, especially with mild degree of COPD. The lower limit of normal (LLN) can be used to minimize the potential misclassification. The aim of this stu...
The objective of the present study was to establish multiethnic, all-age prediction equations for estimating stature from arm span in males and females. The arm span/height ratio (ASHR) from 13 947 subjects (40.9% females), aged 5-99 years, from nine centres (in China, Europe, Ghana, India and Iran) was used to predict ASHR as a function of age using the lambda, mu and sigma method. Z-scores fo...
A retrospective analysis of spirometric data from divers attending for annual medical examination at intervals from three to nine years was carried out to examine the long term effect of diving on lung volumes. Those divers with records over a three or four year interval (group 1, n = 224) showed a mean reduction of forced vital capacity (FVC) of 240 ml; those with records over a five or more y...
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