大学生信息素质培养模式探索

通过对信息素质教育核心体系、信息素质教育内容的层次化、模块化和特色化及信息素质教育方法的探索性研究,提出了构建一个整体连贯的、全方位的、多层次的、可操作的信息素质教育模式,并初步设计出了一体化信息素质教育模式图。     

河南省人口-水资源-经济和谐发展时空变化分析

面对日益严峻的人、水、经济矛盾,研究区域人口-水资源-经济的和谐发展水平,分析其时空变化过程,能为区域缓解人口密集、水资源紧缺提供指导。本文根据人水和谐量化方法,确定了河南省2000-2012年18个城市的和谐发展水平,先利用变差系数对时间和空间的差异程度进行识别,再利用箱形图等分析其时间变化过程,利用全局Moran's I和局部Moran's I指数法分析其空间变化过程。结果表明,年际变差系数先上升后持续下降、趋于均衡,空间上周口市变差系数最大、郑州市变差系数最小;在时间上,河南省人口-水资源-经济的和谐发展水平整体有所提升,由“较不和谐”提高到了“较和谐”状态;在空间上,和谐发展水平存在显著空间正相关,三门峡、洛阳、济源为高高聚集区,商丘和濮阳为低低聚集区,整体呈现西优东劣态势。     

Evaluating Teacher Education Programs Using a National Survey

Abstract

The authors used the National Survey of Teacher Education Program Graduates, developed by Freeman, Loadman, and Kennedy (1991), to evaluate the baccalaureate and master's of education (M.Ed.) teacher education programs at a major Carnegie I research university. The instrument's 4 measures—acting as proxies for teacher education graduate careers, quality of program, teaching skills, and teaching knowledge satisfaction—were compared with national norms from other teacher education programs across the country. The survey data from the class of 1996, consisting of 263 baccalaureate graduates and 171 M.Ed, graduates, suggested that they were generally very positive about their programs and careers. In general, the baccalaureate and M.Ed. graduate responses on all 4 measures were more alike than different. Both groups of 1996 graduates rated the measures more positively than the national norms.     

The redistributive equity of affirmative action: Exploring the role of race,socioeconomic status,and gender in college admissions

This paper contributes to research on affirmative action by examining issues of equity in the context of racial quotas in Brazil. We study the experience of the University of Brasilia, which established racial quotas in 2004 reserving 20% of available admissions slots for students who self-identified as black. Based on university admissions data and a student survey conducted by the authors, we find evidence that race, socioeconomic status, and gender were considerable barriers to college attendance and achievement. For example, first-difference regressions involving pairs of siblings indicate that black identity and gender had a negative effect on entrance exam scores. Moreover, we compare displaced and displacing applicants and find that racial quotas helped promote equity to some extent. Nevertheless, the scale and scope of redistribution were highly limited, and the vast majority of Brazilians had little chance of attending college, suggesting that more still needs to be done.     

美国产学研协同创新联盟建设与经验——以I/UCRC模式为例

源于20世纪70年代的"产业/大学合作研究中心"现已发展成为美国最典型的产学研协同创新模式,并拓展为"州/产业/大学合作研究中心"模式。"产业/大学合作研究中心"协同创新模式在组织构成、组织管理和协同创新项目设计上都具有其明显优势,并在其长期发展中积累了丰富经验,这对我国产学研协同创新联盟建设具有重要借鉴价值。     

开放教育英语I的自主学习策略

针对开放教育的特点,提出了自主学习的必要性和可行性。通过对开放英语I的学习策略分析,探讨了开放教育学生在英语学习素质上的自我完善,从而培养学生自主学习的能力,促进开放教育可持续发展。     

姜黄素神经保护作用研究进展

姜黄素（curcumin）是从姜科姜黄属植物的根茎中提取出来的一种黄色植物多酚,具有抗炎、抗氧化等多种药理作用,可以改善癌症、糖尿病和脑外伤等多种疾病症状。近年来随着对姜黄素的深入研究,发现其在神经系统疾病中也有较好的效果,如阿尔茨海默病、帕金森病、神经疼痛和神经系统肿瘤等。该文综述了姜黄素神经保护效应及其机制。     

Joint analysis of preschool attendance and school performance in the short and long-run

This paper aims at explaining the academic performance of a sample of children starting their first year at public schools in Montevideo, Uruguay, during 1999. We are mainly interested in the effect of pre-school education on the children's academic results. Previous probit and OLS estimations suggested that pre-school education has a positive impact on short and long term school performance. However, these results could be biased because a rather strong endogeinity of the pre-school education variable. We solved the problem by bivariate probit and treatment effects estimations. The results confirmed the bias and suggest that our previous estimations underestimated the positive effect of pre-school educations. Thus, we found fairly strong empirical evidence to suggest that having pre-school education has a short term positive effect on these children's results in the first year at school, and the long-term effect, after six years, seems to be somewhat weaker but is still positive. We also found several other factors connected with schools and with households that might lie behind children's short-term and long-term performance. It is important to note that, in the long-run, we found that a variable reflecting the general performance of the school had a strong effect on the academic performance after six year.     

Forecasting performance of grey prediction for education expenditure and school enrollment

GM(1,1) and GM(1,1) rolling models derived from grey system theory were estimated using time-series data from projection studies by National Center for Education Statistics (NCES). An out-of-sample forecasting competition between the two grey prediction models and exponential smoothing used by NCES was conducted for education expenditure and school enrollment under the assumption that grey prediction was as promising as NCES's forecasting technique in dealing with univariate time-series data while some other determinants of the variables under examination were excluded. The purpose of this study, therefore, was to verify that the GM(1,1), and GM(1,1) rolling models would provide forecasts that were at least as accurate as the NCES's approach to extrapolating education expenditure and school enrollment. The findings revealed that the forecasting efficiency of GM(1,1) rolling model was superior to exponential smoothing and GM(1,1) model. The results can offer valuable insights and provide a basis for further research in model building for short-term estimation on educational statistics.     

第一、二人称指示语映射使用的交互主观性功能探析

第一人称"我"和第二人称"你"在使用过程中,常常出现错位和虚化现象,即映射现象,其背后有着深刻的交互主观性功能实质。虽然不同的映射使用显示的交互主观性意义有差别,但都显示的是将听话人纳入话语中心,视作交际主体的语用策略。