BACKGROUND The traditional nasal cannula with bubble humidifier is limited to a maximum flow of 6 L/min to minimize the risk of complications. We conducted a bench study of 2 new Food and Drug Administration-approved nasal cannula/humidifier products designed to deliver at flows> 6 L/min. METHODS Using a digital psychrometer we measured the relative humidity and temperature of delivered gas f...

Background: The larvae of Lucilia sericata are efficiently and widely used in maggot therapy. The aim of this study was to investigate some environmental factors that influence the mass rearing of Lucilia sericata as the most suitable candidates for maggot therapy in Iran. Methods: This cross-sectional study was conducted in fli...

Realistic prediction of concrete shrinkage and creep requires the calculation of the distributions of relative humidity at various times. Although the distributions of the relative humidity can be computed by numerical methods from the differential equation for diffusion, simple prediction formulas can facilitate structural analysis. The purpose of this paper is to present a simple formula for ...

Background and objective: The peak heart rate (HRpeak) assessed in maximum laboratory tests has been used to determine the aerobic exercise intensity in field situations. However, HRpeak values may differ in field and laboratory situations, which can influence the relative intensity of the prescribed workloads. The objective of this study was to measure the HRpeak responses in laboratory and fi...

abstract evapotranspiration as one of the important elements in agriculture has a considerable role in water resource management. therefore, using a more exact estimation method is an essential step of agricultural development, especially in arid semi-arid area. in this research, in order to exact estimate of garlic evapotranspiration using lysimeteric data, an artificial neural network (ann) m...

abstract climate variability empowers critical consequences on sustainability of soil and water resources. in this paper the trend of annual and seasonal time scale of temperature (minimum, maximum, average), relative humidity (minimum, maximum, average), precipitation, wind speed, extreme events, cloudiness, reference evapotranspiration employing mann-kendall and least square errors were studi...

While the specific humidity of the atmosphere is expected to increase as the climate warms, roughly consistent with constant relative humidity in a global mean, precipitation increases do not keep pace with specific humidity increases. To investigate systematically how precipitation changes with climate, we conducted a series of simulations with an idealized general circulation model in which w...