抗日战争时期旅日中国留学生的救亡活动

抗日战争是一场中华民族的抵抗日本侵略的战争,中华民族的各个组成部分都为最后的胜利做出了自己的贡献。当时旅居于日本的中国留学生与中国国内的各界民众一样,曾以旺盛的民族精神,积极投身于创办反战报刊、搜集日军情报、发展抵抗组织等爱国抗日活动,这些活动成为以国共两党为中心的抗日民族统一战线的一支重要海外策应力量。     

The Size-adjusted Critical Region of Moran's I Test Statistics for Spatial Autocorrelation and Its Application to Geographical Areas

In this article, we explore the expression of the asymptotic approximation of the distribution function of Moran's I test statistic for the check of spatial autocorrelation, and we derive a more accurate critical value, which gives the rejection region similar to significant level α to the order of N^?1 (N = sample size). We show that in some cases our procedure effectively finds the significance of positive spatial autocorrelation in the problem testing for the lack of the spatial autocorrelation. Compared with our method, the testing procedure of Cliff and Ord (1971) is clearly ad hoc and should not be applied blindly, as they pointed out. Our procedure is derived from the theory of asymptotic expansion. We numerically analyze four types of county systems with rectangular lattices and three regional areas with irregular lattices.