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).     

论认知语境与英语多媒体教学的整合与同构

自上世纪末,我国语言学界掀起了研究认知语言学热潮,尤其是对认知语境与关联理论在对语言教学的指导方面推崇备致,而多媒体在语言教学中的作用却受到了某些人士的质疑。本文的目的在于揭示认知语境和关联理论在指导教学中的局限性,并通过多媒体与传统教学手段进行比照,说明多媒体教学比传统教学更能有效地解决认知语境与关联理论的这一局限性。     

基于虚拟现实技术的企业认知实践教学设计与仿真实验开发

机械类专业学生企业认知学习的目标和任务是使学生了解企业生产和工作环境,增加学生对机械专业工作岗位群的感性认识,并通过理论联系实际初步培养学生的工程意识、工程素质和工程实践能力,为今后进一步学好各门专业课奠定基础。而由于实习学生人数多、学生实习既耽误工作又妨碍生产,因此很多企业都不太愿意接收学生在企业实习,实习企业难找是目前大部分机械类专业面临的共性问题。本论文针对实习企业难找的问题,利用虚拟现实技术设计了以真实存在企业环境为基础的虚拟认知实践教学环境,并开发了可完成仿真实验的数字化虚拟工厂。基于虚拟现实技术的数字化工厂有效解决了学生实习企业难找的问题,为实习学生提供了不到工厂也能参观企业的各个部门及生产车间、了解生产流程、熟悉各类生产设备和工艺的平台。     

数学教师认知偏差的分析及对策

借助认知偏差的概念，归纳出数学教师认知偏差的表现及对数学教学的消极影响，对数学教师的认知偏差进行了归国分析，指出了数学教师认知偏差的克服途径。     

汉语个体量词的产生及其原因探讨

从历时的角度考察了汉语个体量词产生、发展和成熟时期的情况,和汉语个体量词产生的动因。认为汉语个体量词的产生是汉语范畴化和汉语类型特点制约的结果,同时反映了汉民族的认知视点。     

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…     

广告双关语的概念整合分析

双关作为一种有效的修辞手段,备受广告商的青睐。近年来,对广告双关语的研究仅仅局限于对其结构形式、语用功能和美学功能的讨论。本文从认知的角度,用概念整合理论分析了广告双关语的产生和解读过程,并认为广告双关语具有独特的认知特性:对双关语的解读过程有实时性,需要在特定的语境下进行,同时也受文化模式的制约。     

运用概念图进行生物教学对学生认知方式的影响

本研究以高二学生为被试 ,采用不同教学方法进行高中生物“新陈代谢”一章的教学后 ,对高二学生的认知方式及其学业成绩进行了分析。结果表明 :(1)不同的教与学方法对学生的认知方式会产生显著影响。 (2 )使用画概念图的实验班学生多选择“规则 (P)”为其认知方式。这表明 ,学生主要以有意义的方式在进行学习和建构自己的认知结构 ,其生物学业成绩较好。 (3)运用传统教学法的控制班选择“回忆 (R)”为主要认知方式。这表明 ,控制班学生以机械记忆为主构建自己的认知结构     

Cognitive Development in Gifted Children: Toward a More Precise Understanding of Emerging Differences in Intelligence

To truly understand gifted performance, it is necessary to merge research on giftedness with current thinking in cognitive development and intelligence. This article presents traditional research on gifted children's cognitive development then considers how the application of newer models and theories from the field of cognitive development can be combined with research on giftedness to change the way people think about gifted performance. First four factors that have often been associated with giftedness are discussed from the perspectives of cognitive developmental psychology and gifted education. Next, emphasis is placed on investigating the strategic development of gifted children. Specifically, R. S. Siegler's (Emerging Minds: The Process of Change in Children's Thinking, Oxford University Press, New York, 1996) model of strategy development is addressed in terms of what it may contribute to understanding gifted cognition. Finally, future lines of research using models from cognitive development and complex systems models of development are recommended.     

大学生英语听力训练模式数据分析及学习策略的思考

本文就大学生听力训练的三种学习模式进行了实验,并结合认知学习论和“母语-英语知识-认知双元结构”的相关理论,对实验的相关数据进行了分析,同时,针对不同的学生提出了不同的学习策略和教学模式.