Objective To investigate dietary fat intake and fatty acid composition in Qingdao residents.Methods Cluster random sampling method was used to select 189 adults (53 males and 136 females) between March and to July 2010.The food intake habit and the relationship between nutrient,fat,fatty acid composition and serum lipid concentrations were analyzed.Results Per capita intake of cereal was 200 g,potato 26 g,poultry meat and offal 85 g,seafood 73 g,nuts 23 g,and oils 40 g.Protein accounted for 16％ of total calorie intake,carbohydrate 48％,and fat 37％.Oils accounted for 43％ of fat intake,and nuts 11％.High fat intake was mainly contributed to intake of oils and nuts.Those with dyslipidemia showed higher nutritent intake and body mass index.ConclusionQingdao residents show higher dietary fat intake and lower long-chainω-3 (n-3) PUFAs consumption.Long-chain n-3 PUFAs may be negatively correlated with dyslipidemia.

Objective To investigate the effects of soybean peptide calcium on apparent calcium absorption rate and bone mineral density of rats.Methods Totally 50 male Wistar rats were divided into 5 groups at comparable body weight:the low calcium control group,calcium carbonate control group and 3 groups with low,medium and high dose of soybean peptide calcium(SPC).Rats of each group were fed with designed forage.At the end of the fourth week of the feeding.calcium metabolic experiment was performed for 3 days and the apparent calcium absorption rate was calculated.Three months later,the left and right femurs of the rats were stripped to assay the bone calcium and bone density.Results Apparent calcium absorption rate of the calcium carbonate control group was 69.9 ％,which was lower than medium(82.6 ％) and high doses(77.4％) of soybean peptide calcium groups(F =31.371,P=0.000,0.001).Compared with the low calcium control group,rats with medium and high doses of SPC had obviously increased levels of weights(F =3.150,P =0.010,0.002),bone mass(F =3.195,P =0.015,0.002),calcium content (F=4.506,P =0.004,0.001)and bone mineral density of midpoint (F=6.185,P =0.006,0.000) and far end of femur (F =6.081,P=0.027,0.000).Despite of the weight index (P＞0.05),the high dose of soybean peptide calcium group also had the same results as the calcium carbonate control group (P=0.046,0.024,0.013,0.001).Conclusions Soybean peptide calcium can promote the apparent calcium absorption rate and increase the bone mineral density.

In this paper,the indoor air quality of several hotelsand dancing halls was evaluated by using of two monitoring indexes.The results showed that the concentration of carbon dioxide of three dancing halls is low before opening,and the oxygen consumption is low too.But after opening an hour,the concentrations of carbon dioxide and carbon monoxide raises with increase of oxygen consumption correlation analysis between the concentration of air-negative ion and the oxygen consumption showed that both is negative correlation,(r=-0.354,P