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A Dabrowska J Pietkiewicz K Dabrowska E Czapińska R Danielewicz 《Canadian Metallurgical Quarterly》1998,1383(1):123-129
This study aimed to measure energy intake (EI) and total energy expenditure (TEE) of asthmatic males and to validate diet history as a method of estimating their energy requirements. EI was assessed by dietary history and TEE by the heart-rate monitoring method in a group of asthmatic and nonasthmatic males. Resting energy expenditure (REE) adjusted for fat-free mass was higher in asthmatic than in nonasthmatic males (5,037 versus 4,839 kJ x day(-1), p<0.05). TEE (93+/-1.8 versus 8.4+/-1.4 MJ x day(-1), respectively; p=NS) and EI (9.2+/-15 versus 8.8+/-15 MJ x day(-1), respectively, p=NS) were not statistically different in asthmatic and nonasthmatic male. EI was not statistically different from TEE in both groups of males. Asthmatic males showed an acceptable agreement between TEE and EI at the individual level (range of agreement: -3.2 to 2.9 MJ x day(-1)), and a good agreement at the group level (95% confidence interval for the bias, - 1.1 to 0.8 MJ x day(-1)). Males with mild-to-moderate asthma have a higher metabolic activity per unit fat-free mass than nonasthmatic males. This increased requirement is apparently well compensated by an adequate energy intake. Diet history is a suitable method for estimating energy requirements in males with mild-to-moderate asthma. 相似文献
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Two new coincidences between theP (31) andP (35) CO2 10.6 μm sequence band emission lines and the15NH3 absorption lines have been found to produce far infrared (FIR) emission lines atlambda = 111.9 and 218 μm. In addition, the known coincidence between the regularR (42) 10.6 μm band CO2 emission line and theasR 相似文献
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Far-infrared laser action is reported for the first time from the optically pumped CH2 F2 molecule. Lasing on twelve FIR transitions was produced by pumping with six emission lines in theR branch of the 9.6 μm band of the CW CO2 laser. High conversion efficiencies of up to 20 percent of the quantum limit have been obtained with the stronger FIR laser lines. 相似文献
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Intense superfluorescent emission in the far infrared has been produced for the first time at wavelengths oflambda = 135.7 mu m andlambda = 90.1 mu m from D2 S pumped with a CO2 TEA laser. The pump and emission lines have been assigned to molecular transitions in the ν2 vibrational mode. An additional strong line atlambda = 183.2 mu m has been attributed to the HDS molecule. 相似文献