A new CO2 inhalation system for studying regulation of breathing.
نویسندگان
چکیده
منابع مشابه
A new CO2 inhalation system for studying regulation of breathing.
This paper describes the development of a computer-controlled system that controls inspired CO2 or end-tidal PCO2 (PETCO2) to follow preprogrammed functions such as step, sinusoid, and pulse, under normoxic, hyperoxic, and hypoxic conditions. The system uses a proportional-integral (PI) controller that was optimized by adjusting the PI parameters so as to minimize the integral-time of absolute ...
متن کاملa new approach to credibility premium for zero-inflated poisson models for panel data
هدف اصلی از این تحقیق به دست آوردن و مقایسه حق بیمه باورمندی در مدل های شمارشی گزارش نشده برای داده های طولی می باشد. در این تحقیق حق بیمه های پبش گویی بر اساس توابع ضرر مربع خطا و نمایی محاسبه شده و با هم مقایسه می شود. تمایل به گرفتن پاداش و جایزه یکی از دلایل مهم برای گزارش ندادن تصادفات می باشد و افراد برای استفاده از تخفیف اغلب از گزارش تصادفات با هزینه پائین خودداری می کنند، در این تحقیق ...
15 صفحه اولEffect of Co2 Inhalation on Ventilation and Mechanics of Breathing in Mitral Disease.
Administration of different concentrations of CO2 is known to cause an increase in respiratory minute volume. This increase of ventilation in healthy subjects is directly related to the height of the inspired alveolar carbon dioxide tension. It has been shown, however, that in patients with emphysema and in those with mitral valvular disease the increment of minute volume is smaller than in the...
متن کاملErythropoietin: a model system for studying oxygen-dependent gene regulation.
The physiological regulation of the red cell mass depends upon enhanced transcription of the erythropoietin (Epo) gene in response to hypoxia. Studies of Epo gene expression have been useful in investigating the mechanism by which cells and tissues sense hypoxia and respond with biologically appropriate alterations in gene expression. It is likely that oxygen sensing involves a heme protein in ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: The Japanese Journal of Physiology
سال: 1989
ISSN: 1881-1396,0021-521X
DOI: 10.2170/jjphysiol.39.635