我国技术反哺农业的实现路径与政策建议

技术反哺是工业反哺农业、城市反哺农村的造血机制。农业技术具有不同程度的公共产品属性,技术反哺是一项综合性、系统性、开放性、动态性的工作,要求充分发挥政府、企业、科研院所、离乡群体和社会组织等多重主体的各自优势,采取有效措施,相互配合、分工协作,做到五位一体整体推进。     

《海上花列传》的人物塑造艺术

<海上花列传>的人物形象既有艺术的概括性.又有生活的现实性,形象鲜明,性格统一,人物之间很少雷同.小说人物塑造艺术高超,作者善于使用曲笔,善于扣住性格特征,步步深化、完善,在人物的相互关系中表现人物性格.塑造人物时,小说成功运用了写实、白描,以及多层显现、由表及里,关键之处最后点出等表现手法.     

电子技术实验教学改革探讨

针对当前电子技术实验教学中存在的几个问题 ,指出为了适应电子技术的飞速发展 ,必须改进实验内容 ,使教学手段多样化、现代化 ,使教学方法灵活多样 ,并要加强考核方法改革及师资队伍的建设 ,以提高学生的实践能力和创新能力 ,增强竞争力。     

我国女子跳远运动员起跳技术的运动学分析

选择目前我国优秀女子跳远运动员的起跳动作作为研究范围,通过运动图像解析系统对在比赛现场得到的相关运动学参数进行了分析.试图找出目前我国女子跳远与世界水平之间的差距,为我国女子跳远运动训练提供参考和依据.分析结果表明,我国女子跳远运动员起跳技术比较成熟,但起跳缓冲技术较差,起跳时间高于世界优秀运动员.     

教育技术的发展与展望

本文阐述了教育技术的产生,在教育活动中的巨大作用,以及在国内外的发展进程和未来趋势。     

楼宇智能化技术的多媒体教学及课件制作初探

本文章阐述了楼宇智能化技术课程的体系结构,说明了多媒体课件在该课程教学中的重要意义,详细介绍了多媒体教学的设计过程以及课件的开发环境、过程和实现方法,并讨论了应用多媒体教学的注意之处.     

20世纪初美国社会现实的艺术再现——评《被背弃的老祖母》

美国现代主义小说家凯萨琳·安恩·波特的小说以其细腻的描写、娴熟的技巧和深邃的思想内涵而深受读者、评论家和作家的赞扬和推崇。她的短篇小说《被背弃的老祖母》采用象征和意识流的写作手法,反映了20世纪初美国社会现实。本文对作品中的象征手法和意识流手法进行了仔细分析。     

A meta-analysis of the pique technique of compliance

A random-effects meta-analysis was undertaken to examine the effectiveness of the pique technique of compliance-gaining. Results indicated an overall significant effect of the pique technique on increased compliance rate across 17 comparisons (r = .27). Moderator analyses showed the technique worked significantly better than controls in gaining compliance when a smaller amount was requested, when the reason for the request was included, and when the technique was used in France. In addition, the pique technique was more successful than control requests in terms of the total amount of money or time given by participants and the percentage of participants inquiring about the requests. Theoretical and practical implications for the success of pique technique are discussed for future research.     

A closer look at de-aliasing effects using an efficient foldover technique

Foldover techniques are used to reduce the confounding when some important effects (usually lower order effects) cannot be estimated independently. This article develops an efficient foldover mechanism for symmetric or asymmetric designs, whether regular or nonregular. In this paper, we take the uniformity criteria (UC) as the optimality measures to construct the optimal combined designs (initial design plus its corresponding foldover design) which have better capability of estimating lower order effects. The relationship between any initial design and its combined design is studied. A comparison study between the combined designs via different UC is provided. Equivalence between any combined design and its complementary combined design is investigated, which is a very useful constraint that reduce the search space. Using our results as benchmarks, we can implement a powerful algorithm for constructing optimal combined designs. Our work covers as well as gives results better than recent works of about 20 articles in the last few years as special cases. So this article is a good reference for constructing effective designs.     

A stratified unrelated question randomized response model using Neyman allocation

This paper applies stratified random sampling using Neyman allocation to Mangat et al. (1992 Mangat, N.S., Singh, R., Singh, S. (1992). An improved unrelated question randomized response strategy. Cal. Stat. Assoc. Bull. 42:277–281.[Crossref] , [Google Scholar]) unrelated question randomized response (RR) strategy for both completely truthful reporting and less than completely truthful reporting. It is shown that, for the prior information given, our new model is more efficient in terms of variance (in the case of completely truthful reporting) and mean square error (in terms of less than completely truthful reporting) than Kim and Elam's (2007 Kim, J.M., Elam, M.E. (2007). A stratified unrelated question randomized response model. Stat. Papers 48:215–233.[Crossref], [Web of Science ®] , [Google Scholar]) model. Numerical illustrations and graphs are also given in support of the present study.