用于实践性教学的电磁场与波智能实验系统     

赵双 《大众科技》2012,14(3):210-212,184

文章在既有的电磁场与波实验系统基础上,设计并实现了1套全新的用于实践性教学的电磁场与波智能实验系统。该系统不仅改进了既有实验系统在长期教学实践中体现出的种种不足,更扩展了该系统的实验接口,为以后该实验系统的功能扩展提供了有力保障。通过串口网络的引用,使得以前孤立的实验平台和教师PC有机地结合起来,使得计算机辅助教学和实践性教学这两大电磁场与波辅助教学手段的结合成为了可能,为未来电磁场与波实践性教学提供了新的方向和更加广阔的前景。  相似文献   

广西经济增长率与通货膨胀率关系分析     

劳青 《大众科技》2012,14(3):257-260

经济增长与通货膨胀是宏观经济的核心问题。文章以1979年至2009年广西GDP与CPI年度数据资料为观测序列,考察广西经济增长率与通货膨胀率的长期均衡关系,并运用协整检验实证方法对两者的数量关系进行研究,寻求相应的对策。  相似文献   

国民经济与运动员获世界冠军情况的关系研究     

李江林 《科技广场》2012,(2):249-251

本文的数据分析,结果说明了国民经济与运动员获世界冠军情况的密切关系,主要使用相关分析发现两者具有相关关系,利用SPSS19.0得到两者的三次方曲线模型,借此来说明国民经济发展和体育事业发展的关系。  相似文献   

走出困境:中学教育研究的路径选择     

王昌平 《四川职业技术学院学报》2010,20(1):65-66

中学教育研究要根据教育的实践本性,意识到当前教育研究在理论研究、实践研究和方法论研究方面的困境,用生成性思维深入探究新课改中为什么教、怎样教和怎样评的问题,在实践研究中建构新课程的教学模式.  相似文献   

“思想道德修养与法律基础”课程教师教学现状实证研究 ——基于对长株潭地区高校“基础课”教师的问卷调查     

李湘黔 《成都教育学院学报》2010,24(1):74-76

通过对长株潭地区高校“思想道德修养与法律基础”课程（以下简称“基础课”）教师的问卷调查,发现当前“基础课”教学的主要形式是大班教学,“基础课”教师在教学中使用的方法具有多样性的特点,绝大部分“基础课”教师喜欢自己的“基础课”教学工作,“基础课”教师对自己教学中的教学互动的注重还不够,基于调查提出运用多元智能理论来提高“基础课”教学实效性。  相似文献   

浅谈汉语作为第二语言教学中多元智力的培养     

杨丽萍 《思茅师范高等专科学校学报》2010,26(6):65-69

多元智能理论作为一个年轻的理论,在其具体的运用和研究中尚处于起步阶段,特别是在汉语作为第二语言的教学中。结合汉语作为第二语言教学的特点,重点从如何运用多元智能理论来整合汉语作为第二语言的教学。教师在课堂教学中要向学生展示多方面的智力领域,善于鉴别和发展学生的优势智力,从而培养学生的多元智力,以谋求学生的个性化发展。  相似文献   

Using Excel for White's Test—An Important Technique for Evaluating the Equality of Variance Assumption and Model Specification in a Regression Analysis     

Mark L. Berenson 《Decision Sciences Journal of Innovative Education》2013,11(3):243-262

There is consensus in the statistical literature that severe departures from its assumptions invalidate the use of regression modeling for purposes of inference. The assumptions of regression modeling are usually evaluated subjectively through visual, graphic displays in a residual analysis but such an approach, taken alone, may be insufficient for assessing the appropriateness of the fitted model. Here, an easy‐to‐use test of the assumption of equal variance (i.e., homoscedasticity) as well as model specification is provided. Given the importance of the equal‐variance assumption (i.e., if uncorrected, severe violations preclude the use of statistical inference and moderate violations result in a loss of statistical power) and given the fact that, if uncorrected, a misspecified or underspecified model could invalidate an entire study, the test developed by Halbert White in 1980 is recommended for supplementing a graphic residual analysis when teaching regression modeling to business students at both the undergraduate and graduate levels. Using this confirmatory approach to supplement a traditional residual analysis has value because students often find that graphic displays are too subjective for determining what constitutes severe from moderate departures from the equal variance assumption or for assessing patterns in plots that might indicate model misspecification or underspecification.  相似文献   

葡萄与葡萄酒质量的综合评价   总被引：1，自引：0，他引：1  

朱家明  张晓芳  王强  胡继俊 《通化师范学院学报》2013,34(6):8-12

从体现酒品质量的感官评价和酿酒葡萄与葡萄酒的理化指标两方面入手,运用t检验、主成分分析法、模糊c均值聚类分析、多元线性回归分别建立显著性差异检验、主成分、聚类分析、质量影响和论证等模型,并运用SPSS、Matlab7软件,得出两组评酒员的评价结果差异性和可信度,酿酒葡萄的分级,酿酒葡萄与葡萄酒的理化指标之间的联系,最后分析并论证了葡萄、葡萄酒的理化指标与葡萄酒质量的关系.  相似文献   

Reconsidering the use of video clubs for student-teachers' learning during field placement: Lessons drawn from a longitudinal multiple case study     

《Teaching and Teacher Education》2018

Although video clubs have been used to support (student) teachers' learning through reflection upon practice, less attention has been paid to their potential use for supporting changes in participants' practice over a period of time. Prior work has also largely treated (student) teachers as an undifferentiated whole that benefits in similar ways from video clubs. In this study, we problematize this assumption by drawing on three cases of student teachers to exemplify three different learning paths while participating in a video club during field placement. Reflecting on these findings, we discuss implications for differentiating the video-club approach to address different student teachers.  相似文献   

Application of network meta-analysis in the field of physical activity and health promotion     

Xiwen Su  Daniel J. McDonough  Haitao Chu  Minghui Quan  Zan Gao 《运动与健康科学(英文)》2020,9(6):511-520

Continued advancement in the field of physical activity and health promotion relies heavily on the synthesis of rigorous scientific evidence. As such, systematic reviews and meta-analyses of randomized controlled trials have led to a better understanding of which intervention strategies are superior (i.e., produce the greatest effects) in physical activity-based health behavior change interventions. Indeed, standard meta-analytic approaches have allowed researchers in the field to synthesize relevant experimental evidence using pairwise procedures that produce reliable estimates of the homogeneity, magnitude, and potential biases in the observed effects. However, pairwise meta-analytic procedures are only capable to discerning differences in effects between a select intervention strategy and a select comparison or control condition. In order to maximize the impact of physical activity interventions on health-related outcomes, it is necessary to establish evidence concerning the comparative efficacy of all relevant physical activity intervention strategies. The development of network meta-analysis (NMA)—most commonly used in medical-based clinical trials—has allowed for the quantification of indirect comparisons, even in the absence of direct, head-to-head trials. Thus, it stands to reason that NMA can be applied in physical activity and health promotion research to identify the best intervention strategies. Given that this analysis technique is novel and largely unexplored in the field of physical activity and health promotion, care must be taken in its application to ensure reliable estimates and discernment of the effect sizes among interventions. Therefore, the purpose of this review is to comment on the potential application and importance of NMA in the field of physical activity and health promotion, describe how to properly and effectively apply this technique, and suggest important considerations for its appropriate application in this field. In this paper, overviews of the foundations of NMA and commonly used approaches for conducting NMA are provided, followed by assumptions related to NMA, opportunities and challenges in NMA, and a step-by-step example of developing and conducting an NMA.  相似文献