Status of an alien turtle in city park waters and its potential threats to local biodiversity: the red-eared slider in Beijing

Urban Ecosystems - Invasive alien species pose a serious threat to native biodiversity and the ecosystem structure through predation or competition, and this threat is especially severe in China....     

使用双膦酸盐类药物的不良反应

回顾了与氨基双膦酸盐相关的不良反应事件.双膦酸盐类药物有口服与静脉注射两种类型.口服双膦酸盐主要用于治疗骨质疏松症,静脉注射的双膦酸盐用于肿瘤和骨质疏松症的治疗.两类双膦酸盐类药物的副作用在许多方面都不同.     

The Meanings of Democracy among Mass Publics

Social Indicators Research - In this paper, we illustrate that composite views about democracy vary significantly within and across national populations. Using World Values Survey data, we use...     

构建人民币汇率目标区的初步设想

在新的开放形势下,我国应根据经济发展水平、经济运行和国际收支状况在深化金融改革中进一步改革人民币汇率制度,探索和完善人民币汇率形成机制。选择汇率目标区,可以避免人民币汇率单向运动带来的负面影响,增强汇率政策的有效性和灵活性。为此,需要在理论上构建人民币汇率目标区政策体系并进行相应的配套改革。