A new non-electric transport incubator has been developed for transferring babies between health facilities in developing countries. The temperature performance of this prototype was compared with a commercial electric incubator. The warm-up time for the prototype was 51.8 min, compared with 48.1 min for the electric incubator. Forty-five non-distressed premature babies, aged 24-72 h, with a gestational age of less than 37 weeks, were continuously evaluated for a 2 h period. Twenty-five babies, with a mean weight of 2073 g (range 1500-2500 g), were studied in the prototype, and 20 babies, with a mean weight of 2076g (range 1550-2500 g), were studied in the electrical incubator. The rectal and abdominal skin temperature, heart rate, oxygen saturation and respiratory rate of the babies were recorded. The temperature, oxygen and humidity level of the canopy and the room temperature were also measured. The SaO2, heart rate and respiratory rate were within the normal range (in the prototype: 96.5%, 130.5 beats min(-1) and 43 breaths min(-1), respectively; and, in the electric incubator: 96.5%, 128.5 beats min(-1) and 40 breaths min(-1), respectively). No evidence of carbon dioxide narcosis, hypoxia, acidosis or adverse thermoregulatory behaviour were observed in the two groups. The mean rectal temperature for both groups was within the range 36.5 degrees C-37.5 degrees C. There was no significant difference between the measurements of the two groups. The level of oxygen inside the canopy was 21%, and no decrease was observed. The new nonelectric transport incubator confirmed its safety and efficiency in providing a warm environment for non-distressed premature babies over a 2 h period.
With the increasing technological advances, people need more goods and services especially in consumerist societies. This increase in consumption along with technological advances leads to increase in the variety of peoples taste. Therefore, furniture companies try to design their products based on their customers needs. This study examines the factors that affect the furniture sales in high-income segments of the society. 42 students including 23 women and 19 men between 20 to 38 years, attending Kish International Campus at Tehran University, fill out questionnaires related to the beauty, comfort, color, quality, durability, price and brand of their preferred furniture. All data were collected and analyzed using statistical methods. Furniture with symmetric shapes are more desirable (p<0.0001) than asymmetric furniture. Wooden furniture has the highest demand (36%) while metallic furniture has the least demand (8%). These results showed users preferences and factors that affect the furniture sale in high-income families. Such studies can help adapting furniture design based on costumers need and may lead to improve companies furniture sales.
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