土地征用制度改革探析

土地问题是城镇发展建设和城市化过程中的热点问题,土地使用制度的改革关系到城市的发展和土地使用者的切身利益。通过对当前土地征用过程中存在的问题和原因的分析,进而提出了一种新的土地使用制度———土地征购制。     

独立学院人才培养计划中实施职业教育的研究

独立学院主要面向地方和区域经济培养应用型、技能型本科人才,技能培养可通过有效的职业教育来实施。阐述了在独立学院开展职业教育的必要性,探讨了以构建职业能力培养为主线的实践教学体系,以增强职业能力为目标的职业技能鉴定工作,将就业指导贯穿于人才培养计划始终的职业教育方式。     

孤残儿童的机构照顾与社会融合

机构照顾是我国目前孤残儿童福利服务的主要模式,对孤残儿童的衣、食、住、行、医有了较全面的保障,并为这些特殊儿童提供了安全、健康的集体环境。但随着我国改革开放的不断深入,儿童福利照顾的理念和照顾模式也在发生新的变革,跟很多发达国家的发展经历相似,在照顾模式中,改革、变化的趋势是:从大机构到小机构的转变,从机构照顾到家庭寄养和家庭收养模式的转变。本文重点探讨国外孤残儿童机构照顾的实践及其反思,以及我国孤残儿童机构照顾模式存在的问题,特别在社会融合方面存在的缺陷。试图分析孤残儿童走向社会融合的可能途径,并以上海市儿童福利院为例,从现实操作层面来看这些途径的有效性。     

关于发展老年卫生健康服务领域的若干思考

本文在界定了老年卫生健康服务领域的基础上,详细地分析了老年人对该领域产品或服务需求的基本现状,认为在现阶段发展老年卫生健康服务领域必须考虑到老年人的购买能力以及消费特点;还要依靠产业政策的扶持带动老年消费市场的持续发展。     

还杨修之死本来面目

杨修死于帝位之争,而非曹操的屈才．《三国演义》发挥了《世浯》中杨修恃才逞能的一面,而略去帝位之争不提,是为了塑造奸雄曹操的性格特征,与史实并不符合．     

试论言语交际中语用级别性的把握

本文在对语用级别性存在于言语交际中的原因以及其对言 语交际产生的利弊进行分析的基础上,着重通过礼貌原则内部的级别性 和语用原则间的级别性两个方面探讨了在言语交际中把握语用级别性的 关键：以得体为要领,结合交际对象、内容、目的及背景适量、适中、适宜、 适用并适可而止地运用语用级别性来形成自己的交际技巧和谈吐风格。     

司法与行政:中国司法行政化及其检讨

司法行政化是中国司法改革的重大阻碍和重要对象 ,它也是研究司法改革“中端”层面的很好切入。本文从中国司法行政化的宏观观察、症结分析和克服对策三个方面全面阐述了一条新的司法改革路径     

Cox regression of clustered event times with covariates missing not at random

Motivated by a recent tuberculosis (TB) study, this paper is concerned with covariates missing not at random (MNAR) and models the potential intracluster correlation by a frailty. We consider the regression analysis of right‐censored event times from clustered subjects under a Cox proportional hazards frailty model and present the semiparametric maximum likelihood estimator (SPMLE) of the model parameters. An easy‐to‐implement pseudo‐SPMLE is then proposed to accommodate more realistic situations using readily available supplementary information on the missing covariates. Algorithms are provided to compute the estimators and their consistent variance estimators. We demonstrate that both the SPMLE and the pseudo‐SPMLE are consistent and asymptotically normal by the arguments based on the theory of modern empirical processes. The proposed approach is examined numerically via simulation and illustrated with an analysis of the motivating TB study data.     

Vegetation on and around large-scale buildings positively influences native tropical bird abundance and bird species richness

High population growth in the tropics is driving urbanisation, removing diverse natural ecosystems. This is causing native species to suffer while introduced synanthropes flourish. City planners are developing urban greenspace networks, in part trying to address this issue. Architects contribute to these greenspace networks by designing elevated and ground level green spaces on large-scale buildings. However, little evidence is available on whether building green spaces support native fauna. This is true for birds in tropical Singapore that support important ecosystem services and have existence value. Therefore, in this study, we conducted bird surveys and statistical analyses to determine, if and how vegetation on three building green space types (ground gardens, roof gardens and green walls) have a positive impact on native or introduced bird species. We found that elevated greenery (roof gardens and green walls) on large-scale buildings supported a higher richness of birds and abundance of urban native birds than control roofs and walls without vegetation. Ground gardens supported similar levels of native species as roof gardens but also a larger proportion of generalist synanthropes. However, we found no tropical forest habitat specialists across any space type. Therefore, we recommend roof gardens and ground gardens as a potential space for urban natives outside of a less competitive ground-level urban environment. Our study also found certain building design elements (height of elevated space, presence of specific plants) supported different species groups. Therefore, we suggest that these ecological requirements for different species groups are considered when designing a building’s green space.

     

适应性网络空间抽样的设计及估计研究

随着大数据背景下抽样环境复杂化,特别是3S技术（遥感技术、地理信息系统和全球定位系统）日趋成熟,越来越多社会经济问题涉及空间抽样,其样本呈现出规模相对稀少、分布不均匀、局部聚集的特征,使得传统抽样调查面临着严重挑战。本文介绍了适应性抽样技术应用于空间网络环境的基本原理、主要操作步骤和马尔可夫链蒙特卡罗估计推断,并以广州市天河区的商户抽样为例讨论实际操作中应注意的问题,以期为流动人口、环境污染、区域经济研究等方面调查提供理论支撑和实证方法参考。