Comparison of the Effects of Different Forms of Nutrition Education on Adolescent Male Soccer Players.

The purpose of this study was to compare the educational effects on nutrition knowledge of two teaching methods targeting adolescent male soccer players through learning online from WeChat account articles (WeChat group) or taking classroom courses (classroom group). The study investigates whether such teaching methods can improve self-efficacy and nutrition knowledge for athletes. A total of 41 U15 (age 15) youth male soccer players, 21 in the classroom group and 20 in the WeChat group, participated in the experiment by receiving the same nutrition education separately for 12 weeks. An athlete nutrition KAP questionnaire and self-efficacy questionnaire were conducted before the intervention, immediately after the intervention, and 6 weeks and 12 weeks after the intervention. As a result, the nutritional knowledge score and the total score of the athlete nutrition KAP questionnaire in the classroom group increased significantly and were notably higher than those in the WeChat group. Self-efficacy scores improved significantly in both groups. In conclusion, the study showed that the level of nutritional knowledge of U15 male soccer players was mediocre, and both forms of nutrition education can significantly improve the level of nutritional knowledge and self-efficacy of the players. In comparison, the educational effect of classroom teaching is significantly greater and more consistent than that of learning from WeChat public articles.

Simultaneous soot combustion and nitrogen oxides storage on potassium-promoted hydrotalcite-based CoMgAlO catalysts.

A series of potassium-promoted hydrotalcite-based CoMgAlO mixed oxide catalysts used for simultaneous soot combustion and nitrogen oxides storage were prepared by impregnation method. The techniques of TG/DTA, XRD, H2-TPR and in situ DRIFTS were employed for catalyst characterization. Over the catalyst containing 7.5% or 10% K, the soot ignition temperature (Ti=260 degrees C) and total removal temperature (Tf=390 degrees C) are decreased by 180 degrees C and 273 degrees C, respectively, as compared with the uncatalyzed reaction. The results of kinetic calculation show that the presence of K-promoted catalysts decreases the activation energy of soot combustion from 207kJ/mol to about 160kJ/mol. When 400ppm NO is introduced, lower characteristic temperatures or higher reaction rate for soot oxidation is achieved. Simultaneously, relatively larger nitrogen oxides storage capacity is obtained. It is revealed by H2-TPR that the addition of K increases the amount of active Co sites and the mobility of bulk lattice oxygen due to the low melting point of K-containing compounds, the low valence of K+ and the strong interaction between K and Mg(Al). For nitrogen oxides storage, different routes via chelating bidentate nitrates, monodentate nitrates and ionic nitrates are confirmed by in situ DRIFTS over the CoMgAlO catalysts with potassium loadings of 0, 1.5 and 7.5%, respectively.

Prevention of anastomotic stricture with a purse-string suture technique on the gastric side during esophageal carcinoma operations: retrospective study of 463 consecutive cases.

OBJECTIVE: The objective of this study was to investigate the effect of a gastric side purse-string technique on anastomotic strictures during esophageal carcinoma operations. METHODS: From 1996 to 2005, esophageal carcinoma operations were performed on 1128 consecutive patients. Among them, 463 underwent esophagogastric anastomosis with purse-string sutures on the gastric side (purse group) and the other 665 did not (nonpurse group). Anastomotic strictures, reflux, and leakage were analyzed and compared between the two groups after the operations. RESULTS: Complete follow-up was conducted on all 1128 patients within 6 months after the operation. In contrast to the nonpurse group with a postoperative anastomotic stricture rate of 5.4% (36/665), the purse group demonstrated a significantly lower rate (0.2%, 1/463). The occurrence rates of anastomotic leakage in the nonpurse and purse groups were 0.9% (6/665) and 0.4% (2/463), respectively. Of the 17 cases of gastroesophageal reflux, 15 (15/665, 1.8%) were found in the nonpurse group and 2 (2/463, 1.1%) in the purse group. CONCLUSIONS: Thus, a purse-string suture technique on the gastric side might be an effective method for preventing the occurrence of anastomotic strictures after esophageal resection.