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高校主要承担着培育人才、转移知识、社会服务三大任务,其中最根本的任务就是培育人才。而目前高校的教育模式和教学模式并不是很利于学生的创新能力的培养。传统的教育是以“教”为中心,以教师为中心,而忽略了学生的作用,学生的潜能很难得到发挥。通过调整实验教学模式,对《牧草与草坪草种子学》实验课内容进行自主实践课命题,结果表明,自主实践课命题实践教学模式使学生变被动实践为主动实践,在引导学生“实学”创新、提高学生分析和解决问题能力方面发挥作用。 相似文献
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引入了可分命题和可分命题定理,利用该定理统一证明数学分析中的定理,极大简化了这些定理的证明过程. 相似文献
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通过对东辽浅山区森林资源现状的调查分析,本着体现森林综合效益的原则,指出了浅山区林业可持续发展方向,并结合实际,按林种,提出了建设构想。 相似文献
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新时期我国农业和农业科技的发展方向与重大命题分析 总被引:4,自引:0,他引:4
陆建中 《中国农业科技导报》2014,16(6):1-6
基于我国农业和农业科技发展形势,剖析了农业和农业科技的发展动力,指出未来10~20年农业发展的主体方向是转型发展和升级发展,农业科技发展的主导方向是主导技术和先导技术。围绕农业和农业科技的发展方向,当前要统筹布局和组织实施一批农业科技重大命题,构建大联合协作攻关机制,推动实现农业科技的跨越发展,强有力支撑现代农业可持续发展。 相似文献
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Measurement and monitoring of pasture have been identified as foundations for profitable and sustainable grazing systems. The value that farmers place on pasture assessment in feed management is difficult to ascertain and has seen limited research. The objectives of this study were to test a survey to quantify the perceived value of pasture assessment and identify key criteria for design of pasture assessment technologies. An online survey methodology was piloted with 44 New Zealand farmers to assess perceptions of actual and great grazing management outcomes, good and great pasture assessment, and the value associated with moving from good to great pasture assessment. Results highlighted that many farmers perceive a small potential for improvements in their current pasture performance, whereas industry-level studies suggest that this is not the case. We found limitations with farmers linking better pasture management performance with eventual improvements in milk production. There were anomalies with assessing current and potential improved pasture performance through this type of survey methodology, with many farmers claiming very high levels of current performance, and some rating themselves as performing at more than 100% of potential. This research highlights that pasture assessment technology designers need to be aware of the high expectations of farmers regarding performance, for example measurement accuracy and data timeliness. Over, or under, specification of technology for specific tasks, such as daily allocation of pasture at a herd level, may lead to farmer dissatisfaction around costs of technology, return on investment, and if the technology is fit-for-purpose. 相似文献
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从认知心理学、心理语言学角度讨论了语篇理解的过程及其心理机制。首先从命题、推断、局部与整体连贯三个层次上讨论了语篇理解的认知过程 ;然后从认知构件、认知理解模式对认知结构的模拟以及语篇处理过程中的资源限制三个维度论述了语篇理解的心理机制。文章最后指出 ,语篇理解研究的进一步深化取决于研究方法的改进和研究领域的拓展 相似文献
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对于直言命题的变形推理,传统上认为0命题不能换位。本文通过欧拉图我们可以证明以全称命题为前提的换质位法推理中0命题是能够换位的。它完全符合传统的直言命题变形推理规则。 相似文献