Xinjiang,the most northwest provincial administrative area of China,was the area where the oriental people met the occidental.The populations in Xinjiang exhibit very high genetic diversity.Previous study revealed that the eastern Xinjiang populations of the Bronze Age were mixed by the Eastern and the Western Eurasians.However,few studies have been performed to reveal when the population admixture started and how far to the west it reached.In this paper,we studied 148 craniofacial traits of 18 skulls from the Bronze Age Liushui graveyard in Khotan(Keriya County) in the southwest of Xinjiang.Seventeen craniometrical parameters of the Khotan samples were then compared with those of other ancient samples from around Xinjiang using dendrogram cluster analysis,principal components analysis,and multidimensional scaling.The results indicated that population sample of Liushui graveyard was mixed by the Western and Eastern Eurasians with about 79% contribution from the east.Therefore,we demonstrated that population admixture between east and west Eurasia can be traced back to as early as 1000 BC in southwest Xinjiang.
TAN JingZeLI LiMingZHANG JianBoFU WenQing, GUAN HaiJuan2, AO Xue2,WANG LingE1, WU XinHua3, HAN KangXin3, JIN Li1'2 & LI Hui1'2.FU WenQingGUAN HaiJuanAO XueWANG LingEWU XinHuaHAN KangXinJIN Li
目的：验证体力活动总能量消耗问卷中文版（Total Energy Expenditure Questionnaire—Chinese，TEEQ—C）的信度和效度。方法：分层随机抽取300名泰州市居民，间隔7天重复进行问卷调查检验问卷信度．采用7天体力活动日记作为标准检验问卷效度。205名研究对象进入信度和效度分析。信度分析采用组内相关系数分析。效度分析采用Spearman相关分析。结果：总体力活动能量消耗的组内相关系数为0．84（P〈0．05），各强度体力活动能量消耗的组内相关系数为0．54～0．94（P〈0．05）。总体力活动能量消耗与体力活动日记的相关系数为O．73（P〈0．001）。各强度体力活动能量消耗与体力活动日记的相关系数为0-35～0．62（P〈0．001）。均在可接受范围．其中1．5MET强度静坐的效度相关系数最高（0．62。P〈0．001）。结论：TEEQ—C在泰州人群中显示了可接受的效度和较好的信度．尤其在总体力活动水平和静坐方面。
