元谋古猿下颌臼齿三维立体特征

采用欧氏距离矩阵分析 (EDMA)方法对 72枚元谋古猿及作为对比样本的 10枚禄丰古猿、现生大猿类和人类下颌臼齿齿冠 13个测量标志点三维测量数据的统计分析显示 :元谋古猿在下颌臼齿齿冠三维形态测量特征上与禄丰古猿最为接近。与现生大猿类及人类相比 ,元谋古猿和禄丰古猿均与人类之间呈现出非常显著的差异 ,而与猿类较为接近。它们两者及现生大猿类均与人类之间具有许多共同的差异表现特点。元谋古猿在下颌臼齿三维测量特征方面与三种现生大猿类各自之间的差别表现相似。其中 ,元谋古猿与猩猩之间在牙齿形态特征上似乎更为接近。

Three-dimensional Morphometric Analyses of Hominoid Lower Molars from Yuanmou in Yunnan Province,China

Analysis of 3D measurements of 13 landmarks on 72 Yuanmou Hominoid lower molars and some comparative samples, using Euclidean Distance Matrix Analysis (EDMA), show that the 3D morphometric features of Yuanmou Homi noid lower molars largely resemble those of Lufengpithecus. Compared with extant great apes and humans, both Yuanmou Hominoid and Lufengpithecus differ markedly from humans, whereas they show much resemblance to apes. The two Chinese hominoids and extant great apes are different from humans in many of the same ways. Moreover, 3D morphometric features of Yuanmou Hominoid lower molars differ from those of each of the three extant great apes in similar ways. Of the three, the orangutan is the closest match to Yuanmou Hominoid in tooth morphology. However, the exact implications of these similarities and differences remain to be determined.

社会政策与经济政策的关系:中西方公共福利负担建构

本文旨在探索两个经济和文化体制迥异的国家在“公共负担”方面的特点。即使在熟悉其起因的西方,“公共负担”依然没有被研究。而且,正如我们展现的,相同的福利取向也可以在中国发现。为了理解对社会政策和经济政策负面关系的普遍建构,我们采用了一个新的三方框架。分析从经济理念开始,但是结论认为两个另外的解释性因素必不可少:体制或制度的差异,经济发展水平。