论民国时期“政府主导、服务型”乡村改造模式——以民国江西农村服务为中心

1934年国民党在江西开展了农村服务运动。当时的民国江西农村工作者,从管教养卫四个方面开展农村服务工作,探索出了一套以政府主导、服务农村为特点的传统乡村社会改造模式,力图从多方面推动江西农村社会的现代化。尽管这种模式有其难以解开的死结,但仍是值得今天借鉴的农村改造模式之一。     

The Impact of an SES-Based Model on a College's Undergraduate Admissions Outcomes

In Grutter vs. Bollinger, the U.S. Supreme Court ruled that the use of race as one factor, among many in admissions decisions is constitutional. It is not known, however, whether future legal opinions will continue to uphold the use of affirmative action policies. Some have argued that class-based preferences can achieve many of the same goals as in affirmative action while being more likely to withstand legal challenges. To date, no empirical studies have been conducted on the potential impact of a class-based admissions policy if implemented at an undergraduate institution. This paper reports on a study at a selective public college and compares a number of outcomes under three admissions models: the original admissions decisions, a purely academic model, and an socio-economic status (SES)-based model. The findings showed that use of the SES-based model would have led to a more academically qualified class than in the original admitted class while maintaining substantially greater student diversity that was found under the academic model. An admissions policy based on preferences for socio-economically disadvantaged applicants appears to hold promise for other colleges and universities with similar institutional and applicant characteristics. The ideas and research design reported in this paper are based on the doctoral dissertation study of the second author, Undergraduate Admissions Models Incorporating Socioeconomic Factors (Johnson, 2000).     

Models and Paradigms in Kuhn and Halloun

In Modeling Theory in Science Education, Halloun (2004) adopts the word ‘paradigm’, but his use of the term is radically different from that of Kuhn. In this paper, I explore some of the differences between Kuhn’s paradigms and Halloun’s paradigms. Where Kuhn’s paradigms are public, community-defining exemplars of practice, Halloun’s paradigms are private, individualized ways of thinking. Where Kuhn writes of the paradigm shift as a revolutionary, vision-altering conversion experience, Halloun writes of a gradual evolution from one way of thinking to another and an easy back-and-forth switch between paradigms. Since Kuhn’s paradigms are self-enclosed and incommensurable, there is no objective standard by which one paradigm can be shown to be superior to the other. But Halloun uses ‘viability’ as a standard for paradigm choice. Underlying all of this is the more basic question of whether the history of science is an appropriate metaphor for student progress in the classroom. I conclude with some brief thoughts on this question.     

汉英句子扩展模式之对比研究及相关汉译英策略

翻译是一个比较差异、解决差异的过程,而句子是交际活动中的基本语言单位。现从句子层面对比分析英汉两种语言不同的句子扩展模式,即汉语的句首开放性与英语的句尾开放性,以及由此导致的不同句式特点,并探讨相关的汉译英策略。     

On-line estimation of concentration parameters in fermentation processes

INTRODUCTION Saccharomycete, closely linked with human life, is the only microbe that has been utilized to the extent of over a million tons in the world, and is one of the modelled biological bacteria mostly used in modern genetic engineering. Since there are no effective online instruments for measuring the production or resultant concentration, which is a very important quality index in fermentation process, soft sensors (Martin, 1997; Tham et al., 1991; Assis and Filho, 2000; Salgad…     

英语教学中思维能力的培养模式及其对教师的要求

英语思维在英语学习中占有重要地位,英语教学中的三种不同思维能力培养模式即自发思维能力培养模式、启发思维能力培养模式、合作思维能力培养模式,相互促进,相互联系。从不同思维能力培养的角度,对知识的传授者——教师也提出了不同的要求。     

两类典型产业生态系统的建模及比较研究

基于两类典型的产业生态系统建立基本数学模型,提出清洁生产系数和耦合适应度系数概念,在运用数学模型对生态产业园区的几种类型进行解释说明的基础上,得出清洁生产具有广泛的适用性,生态产业园区和区域副产品循环网络具有相对的适用性,而技术创新是产业生态系统成功运行的关键因素等结论。     

Reconsidering the Character and Role of Inquiry in School Science: Analysis of a Conference

We summarize a conference on scientific inquiry bringing together science educators, cognitive scientists and philosophers of science with three goals:

广义线性模型极大似然估计弱相合性的数值模拟

广义线性模型是经典线性模型的自然推广,它是一类应用广泛的统计模型.选择Probit模型,利用matlab编程,通过数值模拟的方法验证了广义线性模型的极大似然估计的弱相合性.     

美国弗吉尼亚大学五年一贯制教师教育模式探析

五年一贯制教师教育模式作为自20世纪80年代兴起的一种整合型教师教育模式,经过二十余年的发展与完善,在美国当今的教师教育研究与实践中已占有一席之地。弗吉尼亚大学作为该模式的首创者和成功践行者,其五年一贯制模式得到了多方的高度认可。该模式中一体化的培养体制、高度融合的课程以及密切合作的师资是践行教师教育理论与实践、学科专业教育与教育专业教育有机融合理念的集中体现和重要保障。