引入在西方被广泛研究的TT(M the transtheortical model,跨理论模型)理论,将其作为研究的理论基础,应用到体育锻炼领域中,以我国普通高校大学生为研究对象,进行该量表的翻译和实证性标准化研究。标准化后的量表结果有较好的信度和效度...引入在西方被广泛研究的TT(M the transtheortical model,跨理论模型)理论,将其作为研究的理论基础,应用到体育锻炼领域中,以我国普通高校大学生为研究对象,进行该量表的翻译和实证性标准化研究。标准化后的量表结果有较好的信度和效度,经重新整合编制适合我国大学生体育锻炼行为变化的4个阶段,这与国外研究的体育锻炼行为变化5个阶段有一定的差异,从中启示今后对于国外的研究量表不能简单地生搬硬套到国内的研究项目中,还必须根据现实国情的考究、检验、标准化后才可以达到理想效果,才能科学指导体育锻炼者实施锻炼计划,也有必要进行后续深入的研究。展开更多
The contamination and environmental risk assessment of the toxic elements in sediments from the middle-downstream (Zhuzhou-Changsha section) of the Xiangjiang River in Hunan Province of China were studied. The results...The contamination and environmental risk assessment of the toxic elements in sediments from the middle-downstream (Zhuzhou-Changsha section) of the Xiangjiang River in Hunan Province of China were studied. The results show that As, Cd, Pb and Zn are major contaminants in sediments, and average concentrations of these elements significantly exceed both the Control Standards for Pollutants in Sludge of China (GB4284-84) for agricultural use in acidic soils and the effect range median (ERM) values. The average concentrations of As, Cd and Pb in the river water slightly exceed the limit of Surface Water Environment Quality Standard (GB3838-2002). The concentrations of As and Cr in depth profiles extensively change, but slight changes are observed in Pb and Zn. Cd and Zn in most sediment samples can easily enter the food-chain and bring possible ecotoxicological risk to organisms living in sediments according to the risk assessment code.展开更多
文摘引入在西方被广泛研究的TT(M the transtheortical model,跨理论模型)理论,将其作为研究的理论基础,应用到体育锻炼领域中,以我国普通高校大学生为研究对象,进行该量表的翻译和实证性标准化研究。标准化后的量表结果有较好的信度和效度,经重新整合编制适合我国大学生体育锻炼行为变化的4个阶段,这与国外研究的体育锻炼行为变化5个阶段有一定的差异,从中启示今后对于国外的研究量表不能简单地生搬硬套到国内的研究项目中,还必须根据现实国情的考究、检验、标准化后才可以达到理想效果,才能科学指导体育锻炼者实施锻炼计划,也有必要进行后续深入的研究。
基金Project (20507022) supported by the National Natural Science Foundation of ChinaProject (EREH050303) supported by the Foundation of Ministry of Education Key Laboratory of Environmental Remediation and Ecosystem Health
文摘The contamination and environmental risk assessment of the toxic elements in sediments from the middle-downstream (Zhuzhou-Changsha section) of the Xiangjiang River in Hunan Province of China were studied. The results show that As, Cd, Pb and Zn are major contaminants in sediments, and average concentrations of these elements significantly exceed both the Control Standards for Pollutants in Sludge of China (GB4284-84) for agricultural use in acidic soils and the effect range median (ERM) values. The average concentrations of As, Cd and Pb in the river water slightly exceed the limit of Surface Water Environment Quality Standard (GB3838-2002). The concentrations of As and Cr in depth profiles extensively change, but slight changes are observed in Pb and Zn. Cd and Zn in most sediment samples can easily enter the food-chain and bring possible ecotoxicological risk to organisms living in sediments according to the risk assessment code.
