滨海新区土地的开发与高效利用

继深圳、浦东之后,国家将大规模开发天津滨海新区.国家"十一五"发展规划,将开发滨海新区列入国家重要的战略布局,期冀通过开发滨海新区,带动环渤海区域经济发展,进而改变我国经济"南快北慢"的局面.这给滨海新区带来了前所未有的发展机遇,但同时,土地资源的有限性也成为制约滨海新区发展速度的因素之一.因此滨海新区今后的土地开发方向、如何实现土地资源的高效利用成为目前亟须研究的课题.     

拓展与优化城市公共空间的思考

一、引言 一般认为,城市公共空间是城市中面向公众开放使用和进行各种活动的空间,是社会、经济、文化、科技、自然、地理气候等多种因素综合作用于城市的物质形态表现;是由各种实体(道路、街区、建筑物、树木、广场、绿地和其他设施等)共同构成的城市空间.     

德国非营利科研机构模式及其对中国的启示——以弗琅霍夫协会为例的考察

战后德国科研机构的主导模式是以著名的马普协会、霍尔姆茨协会、弗琅霍夫协会和莱布尼兹科学研究联合会等为代表的非营利科研机构模式。由于这一模式具有治理结构完善、组织运营高效、科研业绩卓越的优点,因而多年来一直受到国际社会的高度评价,成为越来越多国家重塑科技体制的参考样本。系统考察弗琅霍夫协会的内部组织结构、资源分配方式与成果评估体系,对深化我国科技体制改革应有重要的借鉴和启示意义。     

对国有资产中有形资产流失问题的探讨

国有资产中有形资产的流失存在动态流失与静态流失两种形式,动态流失因产权不清、管理不严或产权交易中规则不健全所致,具体又可分为经营性动态流失和人为性动态流失．静态流失与其是否进入市场交易有关．加强经济立法,完善和发展产权交易市场等可减少或避免国有有形资产的流失。     

Hard thresholding regression

In this paper, we propose the hard thresholding regression (HTR) for estimating high‐dimensional sparse linear regression models. HTR uses a two‐stage convex algorithm to approximate the ?₀‐penalized regression: The first stage calculates a coarse initial estimator, and the second stage identifies the oracle estimator by borrowing information from the first one. Theoretically, the HTR estimator achieves the strong oracle property over a wide range of regularization parameters. Numerical examples and a real data example lend further support to our proposed methodology.     

The Importance of Racial Socialization: School‐Based Racial Discrimination and Racial Identity Among African American Adolescent Boys and Girls

This study examined various parental racial socialization messages as mediators between school‐based racial discrimination and racial identity formation over 4 years for African American boys (N = 639) and African American girls (N = 711). Findings indicated that school‐based racial discrimination was associated with racial identity beliefs. For African American boys, behavioral racial socialization messages mediated the relation between school‐based racial discrimination and racial centrality over time. Mediation also resulted for African American girls, but for a different set of race‐related messages (negative messages and racial barriers) and racial identity beliefs. The developmental significance of the findings and implications for future research are discussed.     

Robust inference for estimating equations with nonignorably missing data based on SIR algorithm

Nonresponse is a very common phenomenon in survey sampling. Nonignorable nonresponse – that is, a response mechanism that depends on the values of the variable having nonresponse – is the most difficult type of nonresponse to handle. This article develops a robust estimation approach to estimating equations (EEs) by incorporating the modelling of nonignorably missing data, the generalized method of moments (GMM) method and the imputation of EEs via the observed data rather than the imputed missing values when some responses are subject to nonignorably missingness. Based on a particular semiparametric logistic model for nonignorable missing response, this paper proposes the modified EEs to calculate the conditional expectation under nonignorably missing data. We can apply the GMM to infer the parameters. The advantage of our method is that it replaces the non-parametric kernel-smoothing with a parametric sampling importance resampling (SIR) procedure to avoid nonparametric kernel-smoothing problems with high dimensional covariates. The proposed method is shown to be more robust than some current approaches by the simulations.     

Third-Person Effect,Religiosity and Support for Censorship of Satirical Religious Cartoons

The violent attack on the staff of Charlie Hebdo and an earlier plot to kill cartoonists from the Danish newspaper Jyllands-Posten raise the issue of censorship of satirical religious cartoons to avoid potential retaliatory violence from those offended by the cartoons. With third-person effect (TPE) as the theoretical underpinning, this study examined the relationship among TPE, religiosity, and support for censorship of religious satirical cartoons. Data were collected in May 2015. A national sample of participants (N=374) was acquired through Amazon’s Mechanical Turk. The results show that individuals with a higher degree of religiosity are more likely to support censorship of satirical religious cartoons, and though TPE is not positively correlated to support for censorship, respondents’ perception of the effect of the cartoons on themselves may indicate an increased propensity for supporting censorship.     

知识社会个人知识管理的方法及运用

个人知识管理有利于培养良好的知识收集、整理、应用习惯,有利于提高个人的工作绩效。个人知识管理的方法有信息技术检索、评估、组织、分析等。架构于个人知识三维情报网和个人知识管理体系,以实施个人知识管理。     

中华民族共同体建设视阈下改土归流的历程、原因及作用

明清时期中央王朝实施的改土归流,不仅彻底废除了土司的政治、经济、军事、司法等特权,将国家版图内的人事权、财政权、军事指挥权、行政管理权、文化教育权等悉数收归中央,而且也是中华民族共同体由“自在”向“自觉”过渡的关键环节。明清改土归流经历了一个长期、艰巨、复杂的过程,其中既有土司利益与王朝利益的矛盾、各地土司与辖区民众的矛盾,也有中央王朝通过改土归流以增加税收、朝廷命官与乡村民众要求改土归流等现实动因。改土归流实现了国家“大一统”的目标、凸显明清国家治理能力的进步、加快了中华民族共同体建设的速度。中华民族共同体是一个由政治共同体、经济共同体、文化共同体和社会共同体四者构成的命运共同体。改土归流的实施,不仅是推动共同体由“自在”向“自觉”迈进的关键步骤和重要举措,而且使中华民族共同体在政治、经济、文化和社会诸方面发生巨大变化。