ETHNICITY, GENERATION, AND SCHOOL ATTAINMENT OF ASIANS, HISPANICS, AND NON-HISPANIC WHITES

Research on immigration and attainment in U.S. schools typically does not separate out generation of U.S. residence, a critical factor in attainment. This article explores immigrant generation effects (native, child of immigrant, immigrant) on schooling attained for Asians, Hispanics, and non-Hispanic whites, using Current Population Survey data. Previously unpublished cross-sectional data are presented. Regressions predicting school years completed show variable generation-by-ethnicity effects. Asian attainment increases sharply between immigrant and child-of-immigrant generations, leveling off thereafter. Hispanic attainment improves with successive generations of U.S. residence. Non-Hispanic white attainment peaks in the child-of-immigrant generation and declines for later generations.     

吉林省城乡居民消费变化的特点及差异研究

随着城乡居民收入的提高 ,吉林省居民的消费水平有了显著变化 ,按可比价格计算的居民消费水平指数总体上呈上升趋势。进入 90年代以来 ,居民的消费构成也相应发生了很大的转变 ,但城乡之间仍然存在较大的差异。实践表明 ,在经济发展水平相对较高的条件下 ,居民消费的心理、水平、构成及其变化 ,对经济增长的影响力度势必呈现出越来越大的趋势     

近五十年我国中印文化关系史研究综述

本文介绍了中华人民共和国成立50多年来我国研究中印文化关系史的概况,尤其对改革开放后20多年来发表的有关专著、论文集和资料集作了重点介绍和评价,并归纳了特点,提出了不足。     

中国城市化与生态环境协调发展预警系统研究

本文构建了城市化与生态环境协调发展预警指标体系,并对1991～2010年中国城市化与生态环境的协调度进行了测算及预测,根据协调度建立了预警系统,并对90年代以来中国城市化与生态环境的协调发展进行了分析。结果表明,2007年以来,中国的生态环境不断恶化,城市化与生态环境的协调度不断下降,保护生态环境成为城市化进程中的重要问题。     

Variable Selection for Partially Linear Models with Randomly Censored Data

This article proposes a variable selection procedure for partially linear models with right-censored data via penalized least squares. We apply the SCAD penalty to select significant variables and estimate unknown parameters simultaneously. The sampling properties for the proposed procedure are investigated. The rate of convergence and the asymptotic normality of the proposed estimators are established. Furthermore, the SCAD-penalized estimators of the nonzero coefficients are shown to have the asymptotic oracle property. In addition, an iterative algorithm is proposed to find the solution of the penalized least squares. Simulation studies are conducted to examine the finite sample performance of the proposed method.     

Cox regression analysis in presence of collinearity: an application to assessment of health risks associated with occupational radiation exposure

This paper considers the analysis of time to event data in the presence of collinearity between covariates. In linear and logistic regression models, the ridge regression estimator has been applied as an alternative to the maximum likelihood estimator in the presence of collinearity. The advantage of the ridge regression estimator over the usual maximum likelihood estimator is that the former often has a smaller total mean square error and is thus more precise. In this paper, we generalized this approach for addressing collinearity to the Cox proportional hazards model. Simulation studies were conducted to evaluate the performance of the ridge regression estimator. Our approach was motivated by an occupational radiation study conducted at Oak Ridge National Laboratory to evaluate health risks associated with occupational radiation exposure in which the exposure tends to be correlated with possible confounders such as years of exposure and attained age. We applied the proposed methods to this study to evaluate the association of radiation exposure with all-cause mortality.     

流浪乞讨人员救助管理制度的实践社会学分析——以北京市C救助站为例

基于对北京市C救助站的个案调查,以实践社会学为理论指导,比较分析我国救助管理制度的核心理念从＂收容＂转向＂救助＂的转变,尤其对实施过程中的实践逻辑进行了深入探究。研究认为,救助管理制度在运行中,其实践逻辑发生了偏误。要完善救助管理制度,不仅要充分调动社会救助主体的积极性,加强部门合作,而且要从理念上升为行动,确保制度的执行。     

自由贸易与劳工权益保护——对"中美彩电反倾销案"的另一种思考

“中美彩电反倾销案”凸显中国在WTO框架内市场经济地位的重要性,但美国劳工组织的诉讼参与及其对劳工权益保护的态度,更值得思考和重视。为保护进口国的贸易利益,以劳工权益保护为由,从“产品倾销”衍生出“劳动力倾销”的论调,不符合DSU依照国际公法的习惯规则澄清WTO协议现有条款的规定;而在国际贸易中如何有效地保护劳工权益是一个十分迫切而现实的法律问题。为维护中国对外贸易利益,保障中国社会生态链的健康循环,中国应采取适当措施,关注和保护本国劳工的合法权益。     

社会主义新农村建设的调查与思考——以华夏朝鲜族第一村为例

被誉为华夏朝鲜族第一村的沈阳市东陵区满融村,在社会主义新农村建设中取得了丰硕成果,充分发挥基层党组织的先锋模范带头作用,新农村精神文明建设务实有效;突出朝鲜族文化特色,建立新农村建设开放性的思维;突出区域经济特色,激发社会主义新农村建设的经济活力;坚持农村生态环境的科学发展,高标准规划和建设社会主义新农村。同时,新农村建设面临社会保障问题突出,经济发展快速,但产业结构不合理,生态、生活和生产环境需要进一步改善等问题。因此,提出多种政策齐下,完善社会保障体系;采取优惠的税收政策,促进企业自主创新;发扬民族文化特色,加快新农村建设步伐;提高生态环境质量,创造生产生活新环境等对策。     

法国文化产业的发展模式及其启示

法国文化产业的发展模式是典型的国家主导模式。这一模式的特征主要体现在倡导"文化民主化"、坚持"文化特殊"原则、强调"国家主导"作用。法国文化产业的发展模式对于我国有两点重要启示:一是提示我们要高度重视文化产业的特殊性;二是展示出国家对文化产业保护和扶持的重要性。