More than any other chronic respiratory disease, asthma is characterized by functional and clinical variability: expiratory flow obstruction, dyspnoea and wheezing may be absent, mild, or severe. Moreover, pulmonary gas exchange often does not closely relate to measured airway obstruction. Accordingly, the correlation between arterial oxygen tension and airflow (Pa,O2) rate indices of obstructi...

BACKGROUND Although recommendations in oxygenation and gas exchange monitoring in the neonatal intensive care unit (NICU) are available, little is known of the current practice. AIM To evaluate the current practice in oxygenation and gas exchange monitoring of the NICUs in the Netherlands. METHODS An online survey-based questionnaire concerning preferences and current practice of monitoring...

The cardiopulmonary exercise test (CPET) is an important physiological investigation that can aid clinicians in their evaluation of exercise intolerance and dyspnea. Maximal oxygen consumption ([Formula: see text]) is the gold-standard measure of aerobic fitness and is determined by the variables that define oxygen delivery in the Fick equation ([Formula: see text] = cardiac output × arterial-v...

Present-day technology has greatly facilitated the monitoring of respiratory gas exchange in the clinical exercise laboratory. Despite the growing use of these techniques to assess the severity and progression of disease or therapeutic response in patients with heart failure, the long-term reproducibility of oxygen uptake (VO2), carbon dioxide production, minute ventilation, heart rate (HR), an...

s tock returns of companies listed on the stock exchange is one of the most important criteria in assessing the macroeconomic. this study investigates the effect of exchange rate volatility on the stock exchange returns of d8 countries. it takes monthly data during the period (2008:1-2015:6) constituting 90 observations. at first we used panel-garch model to estimate exchange rate volatility in...

BEAVER, WILLIAM L., KARLMAN WASSERMAN, AND BRIAN J. WHIPP. On-line computer analysis and breath-by-breath graphical display of exercise fun&n tests. J. Appl. Physiol. 34(l): 128-132. 1973.The problem of making continuous calculations of respiratory variables over the duration of extended physiological studies is so difficult that observations of the breath-by-breath variations of derived quanti...

we calculate the stopping power for heavy-ion diclusters moving in a strongly coupled two-dimensional electron gas system by using the local field corrected dielectric function at finite temperature. we obtain a parameterized local field correction factor based on a relation between the thermal compressibility and exchange-correlation energy in two-dimension. the interpolated parameter is deriv...

in this paper, an adaptive-network-based fuzzy inference system (anfis) is used for forecasting of natural gas consumption. it is clear that natural gas consumption prediction for future, surly can help statesmen to decide more certain. there are many variables which effect on gas consumption but two variables that named gross domestic product (gdp) and population, are selected as two input var...