Simulations were conducted with the regional climate model RegCM incorporating water table dynamics from 1 September 1982 to 28 August 2002 to detect precipitation and temperature extremes. Compared with observed r10(...Simulations were conducted with the regional climate model RegCM incorporating water table dynamics from 1 September 1982 to 28 August 2002 to detect precipitation and temperature extremes. Compared with observed r10(number of days with precipitation ≥ 10 mm d–1), RegCM3_Hydro(the regional climate model with water table dynamics considered) simulated rain belts, including those in southern China and the middle and lower reaches of the Yangtze River, and provided data for arid to semi-arid areas such as the Heihe River Basin in northwestern China. RegCM3_Hydro indicated a significant increasing trend of r95p(days with daily precipitation greater than the 95th percentile of daily amounts) for the Yangtze, Yellow, and Pearl River basins, consistent with r95p observations. The Haihe River Basin was also chosen as a specific case to detect the effect of groundwater on extreme precipitation using peaks over threshold(POT)-based generalized Pareto distribution(GPD) with parameters estimated by the L-moment method. Quantile plots showed that all but a few of the plotted points were distributed near diagonal lines and the modeled data fitted well with the samples. Finally, the effects of water table dynamics on temperature extremes were also evaluated. In the Yellow River Basin and Songhuajiang River Basin, the trends of the number of warm days(TX95n) from RegCM3_Hydro matched observed values more closely when water table dynamics were considered, and clearly increasing numbers of warm days from 1983 to 2001 were detected.展开更多
目的:探索有氧运动和抗阻运动两种常见运动方式对非酒精性脂肪肝病(NAFLD)患者内脏脂肪、肝功能与脂代谢治疗效果对比,为患者选择适宜的运动方案提供依据。方法:检索PubMed、Web of Science、中国知网等数据库,搜集随机对照试验文献,采...目的:探索有氧运动和抗阻运动两种常见运动方式对非酒精性脂肪肝病(NAFLD)患者内脏脂肪、肝功能与脂代谢治疗效果对比,为患者选择适宜的运动方案提供依据。方法:检索PubMed、Web of Science、中国知网等数据库,搜集随机对照试验文献,采用Cochrane偏倚风险评估文献质量,Review Manager 5.3软件meta分析。结果:1)内脏脂肪与脂代谢方面,有氧运动与抗阻运动之间的疗效差异不具有统计学意义;2)肝功能方面,肝功能天冬氨酸氨基转移酶(AST)、丙氨酸氨基转移酶(ALT)与氨酰转移酶(GGT)在两种运动间的疗效差异不具有统计学意义;进一步亚组分析显示,有氧运动对AST在“年龄<52岁”、“BMI≥28”、“干预频次为3次/周”、“干预周期≤12周”亚组中改善效果比抗阻运动好;对ALT的改善在“BMI≥28”、“干预频次为3次/周”亚组中效果更佳。结论:有氧运动与抗阻运动相比,对NAFLD患者内脏脂肪、肝功能与脂代谢治疗效果均无差异,两种运动方式的干预效果相近;但不同亚组仍表现出差异,有氧运动组AST在低龄、高BMI、短干预周期和短干预频次组改善效果更佳,ALT在低龄、短干预周期组具有更好效果。提示患者应根据自身心肺功能、肌肉力量及自身运动情况等,选择适宜自己的运动进行,而当患者需要改善AST与ALT时,建议选择有氧运动干预方式。展开更多
基金Project(2017YFC0804201)supported by the National Key Research and Development Program of ChinaProject(51574246)supported by the National Natural Science Foundation of China+1 种基金Project(2011QZ01)supported by Fundamental Research Funds for the Central Universities,ChinaProject(C201911362)supported by the National Training Program of Innovation and Entrepreneurship for Undergraduates,China。
基金supported by the National Basic Research Program of China (Grant Nos. 2010CB428403 and 2009CB421407)the National Natural Science Foundation of China (Grant No. 91125016)Strategic Priority Research Program of the Chinese Academy of Sciences (Grant No. XDA05110102)
文摘Simulations were conducted with the regional climate model RegCM incorporating water table dynamics from 1 September 1982 to 28 August 2002 to detect precipitation and temperature extremes. Compared with observed r10(number of days with precipitation ≥ 10 mm d–1), RegCM3_Hydro(the regional climate model with water table dynamics considered) simulated rain belts, including those in southern China and the middle and lower reaches of the Yangtze River, and provided data for arid to semi-arid areas such as the Heihe River Basin in northwestern China. RegCM3_Hydro indicated a significant increasing trend of r95p(days with daily precipitation greater than the 95th percentile of daily amounts) for the Yangtze, Yellow, and Pearl River basins, consistent with r95p observations. The Haihe River Basin was also chosen as a specific case to detect the effect of groundwater on extreme precipitation using peaks over threshold(POT)-based generalized Pareto distribution(GPD) with parameters estimated by the L-moment method. Quantile plots showed that all but a few of the plotted points were distributed near diagonal lines and the modeled data fitted well with the samples. Finally, the effects of water table dynamics on temperature extremes were also evaluated. In the Yellow River Basin and Songhuajiang River Basin, the trends of the number of warm days(TX95n) from RegCM3_Hydro matched observed values more closely when water table dynamics were considered, and clearly increasing numbers of warm days from 1983 to 2001 were detected.
文摘目的:探索有氧运动和抗阻运动两种常见运动方式对非酒精性脂肪肝病(NAFLD)患者内脏脂肪、肝功能与脂代谢治疗效果对比,为患者选择适宜的运动方案提供依据。方法:检索PubMed、Web of Science、中国知网等数据库,搜集随机对照试验文献,采用Cochrane偏倚风险评估文献质量,Review Manager 5.3软件meta分析。结果:1)内脏脂肪与脂代谢方面,有氧运动与抗阻运动之间的疗效差异不具有统计学意义;2)肝功能方面,肝功能天冬氨酸氨基转移酶(AST)、丙氨酸氨基转移酶(ALT)与氨酰转移酶(GGT)在两种运动间的疗效差异不具有统计学意义;进一步亚组分析显示,有氧运动对AST在“年龄<52岁”、“BMI≥28”、“干预频次为3次/周”、“干预周期≤12周”亚组中改善效果比抗阻运动好;对ALT的改善在“BMI≥28”、“干预频次为3次/周”亚组中效果更佳。结论:有氧运动与抗阻运动相比,对NAFLD患者内脏脂肪、肝功能与脂代谢治疗效果均无差异,两种运动方式的干预效果相近;但不同亚组仍表现出差异,有氧运动组AST在低龄、高BMI、短干预周期和短干预频次组改善效果更佳,ALT在低龄、短干预周期组具有更好效果。提示患者应根据自身心肺功能、肌肉力量及自身运动情况等,选择适宜自己的运动进行,而当患者需要改善AST与ALT时,建议选择有氧运动干预方式。
