: 该文基于年龄, 教育和务农经历的不同将农村流动人口区分为两类不同群体, 即第一代农村流动
人口和新生代农村流动人口. 在此基础上, 本文讨论这两类不同群体的社会认同差别及其对他们…

In accordance with a decision taken at its Thirteenth Session (Maldives, 22 and 25-28
September 1997) and other subsequent decisions, the IPCC decided: To include a Synthesis …

In Skateboarding, Space and the City Iain Borden aims to write a history of the ‘production’and
‘reproduction’of space through the ‘body-centred’practice of skateboarding (Borden, 2001…

Background People who are not present at a traumatic event may experience stress reactions.
We assessed the immediate mental health effects of the terrorist attacks on September 11…

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An estimated 400 million people suffer from mental or neurological disorders or from psychosocial
problems such as those related to alcohol and drug abuse. Many of them suffer silently…

Parkinson’s disease (PD) is named in honor of James Parkinson, whose classic monograph,“An
Essay on the Shaking Palsy,” written in 1817, has provided an enduring description of …

: 中国东部燕山期岩浆岩广泛发育, 其中有一类具埃达克岩的特征, 并根据埃达克岩的成因提出中国
东部在燕山中晚期可能为一个高原. 本文就中国东部高原的范围, 高原存在的依据, 高原隆升和…

基于信息论思想提出反映城市土地利用结构特征的均衡度概念:假定将城区面积为A的城市用地
分为N个职能类,各类别的面积为Ai(i=1,2,…,N),且有∑iAi=A,定义Pi=Ai/A,则可得到土地利用结构…

The LIWC2015 software and the LIWC2015 Operator’s Manual are published by Pennebaker
Conglomerates, Inc, Austin, Texas 78701 USA. Correspondence should be directed to …