共查询到20条相似文献,搜索用时 156 毫秒
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耿延军 《北京教育(高教版)》2021,(3):94-94
幼儿园里有三棵柿子树,孩子们每天都去看柿子,根据孩子的兴趣,我们开展了"柿子红了"主题活动。在自然角里,孩子们自主、自由、大胆地开展游戏,我以同伴的身份参与、支持幼儿的游戏。1.调动经验,引发猜想幼儿园中时时处处存在教育契机,随着"柿子红了"主题活动的开展,孩子们提出想要快点吃上柿子的意愿。 相似文献
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柿子的涩成分可防癌王平,欣存日本秋田县盛产柿子。新品种的柿子从种植幼苗开始约2-3年便可结果。目前日本盛行在塑料大棚内栽种柿子,每年的九月收获。柿子有甜柿子和涩柿子两种。涩柿子没籽,比甜柿子产量大。提起涩柿子好多人都觉得它涩,不好吃。这实际上是对其成... 相似文献
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“七月枣、八月梨、九月柿子红了皮”,五年前八十一岁的爷爷在柿子的季节吃着红柿子听着小孩子们唱的儿歌,永远地离开了人世。爷爷生前爱吃柿子爱种柿树,爷爷在房后按照两个五角星的十条边种 相似文献
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柿果快速脱涩与果汁饮料加工工艺研究 总被引:3,自引:1,他引:3
翟文俊 《陕西教育学院学报》2005,21(1):96-100
本文研究了以硬鲜柿果、成熟软柿果、柿饼为原料,经磨浆、调配等工艺处理,配制成多种风味和口感的柿果饮料;着重解决了柿果饮料的脱涩、返涩、分层等技术问题。该柿果饮料柿果香味浓郁、无涩,具有天然柿果色泽,营养丰富,本研究为饮料家族增添了新成员。 相似文献
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以甜柿与涩柿叶片为试材,采用3种不同有机溶剂作为提取液,比较研究了甜柿和涩柿2种柿树叶片叶绿素含量的测定方法.结果表明:采用研磨法提取叶绿素时,溶剂以体积分数为95%的乙醇最好,甜柿叶片叶绿素总含量、叶绿素a含量和叶绿素b含量分别为1.428、1.086和0.341mg/g,涩柿叶片叶绿素总含量、叶绿素a含量和叶绿素b含量分别为0.951、0.737和0.213mg/g,均显著高于体积分数为80%的丙酮和二者的混合液;采用浸泡法提取叶绿素时,以体积分数为80%的丙酮和体积分数为95%的乙醇按体积比1:1混合的混合液提取效果最好,甜柿叶片叶绿素总含量、叶绿素a含量和叶绿素b含量分别为1.478、1.089和0.388mg/g,涩柿叶片叶绿素总含量、叶绿素a含量和叶绿素b含量分别为1.180、0.886和0.294mg/g,均显著高于体积分数为95%的乙醇和体积分数为80%的丙酮.两种叶绿素提取方法比较发现,浸泡法优于研磨法. 相似文献
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陈君杰 《宁德师专学报(自然科学版)》2007,19(1):44-45,59
无核柿是闽东地区主要名、特、优产品,长期以来深受群众喜爱,市场前景广阔,具有良好的发展空间.根据多年来无核柿栽培管理的实践,对其生产管理技术进行总结整理,具有较强的实用性. 相似文献
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柿叶中黄酮类物质的提取工艺研究 总被引:1,自引:0,他引:1
为了开发柿叶中黄酮类活性物质的医用价值,弄清提取柿叶中黄酮的影响因素及最佳工艺参数,主要研究了柿叶黄酮的乙醇提取工艺。采用芦丁为对照,利用其铝络合物测定液在510nm处有吸收峰的特点,建立标准曲线,运用吸光光度法测出黄酮类物质的含量;通过单因素试验和正交试验确定了柿叶黄酮类化合物的最佳提取工艺条件。结果表明:用乙醇作为提取溶剂时,影响柿叶中黄酮化合物提取率的因素由大到小依次为:提取时间>提取温度>料液比>乙醇浓度;最佳工艺条件为:提取温度80℃,提取时间40min,乙醇浓度70%,料液比1:35,柿叶黄酮类物质的得率为5.76%。 相似文献
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大盘甜柿属完全甜柿品种,自1997年从湖北引种金华。果实扁圆形,平均单果重250g,最大果重600g,9月下旬成熟。成熟果橙红色,味甜汁多,无核,可溶性固形物含量14.02%,果实着色完熟后便可直接食用。本文从大盘甜柿植物学特性、栽培技术和主要病虫害防治三个方面作了论述。 相似文献
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张之沧 《淮阴师范学院学报(哲学社会科学版)》2005,27(3):301-306,311,419
理查德·罗蒂立足后现代主义、解构主义、文化自由主义、相对主义和后哲学文化论,建立的协同性实用主义,批判分析哲学、现象学、传统的认识论、反映论、符合论和真理观,肯定解释学的功能与教化作用,否定客观性、绝对性、永恒性和不变性,反对理性主义、科学主义和实在论,主张解构形而上学,创立无冕哲学,提倡工具主义、约定主义、实用主义、多元主义,以及心灵与社会的协同性作用。 相似文献
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《British Journal of Educational Studies》1997,45(1):83-116
Buckingham, David Moving Images: Understanding Children's Emotional Responses to Television
Aldrich, Richard (ed) In History and in Education: Essays presented to Peter Gordon
Kohli, Wendy (ed) Critical Conversations in Philosophy of Education
Griffiths, Morwenna Feminisms and the Self: the web of identity
Fryer, Marilyn Creative Teaching and Learning
Atkinson, Paul; Davies, Brian and Delamont, Sara (eds) Discourse and Reproduction: Essays in Honour of Basil Bernstein
Slee, Roger Changing Theories and Practices of Discipline
Woods, Peter and Jeffrey, Bob Teachable Moments: The Art of Teaching in Primary Schools
Best, Ron (ed) Education, Spirituality and the Whole Child
Bassey, Michael Creating Education Through Research
Higham, Jeremy; Sharp, Paul and Yeomans, David The Emerging 16–19 Curriculum: Policy and Provision
Bruner, Jerome The Culture of Education
Halsall, Rob and Cockett, Mike (eds) Education and Training: Chaos or Coherence
McBride, Rob (ed) Teacher Education Policy
Wideen, Marvin F. and Grimmett, Peter P. (eds) Changing Times in Teacher Education
Nixon, Jon; Martin, Jane; McKeown, Penny and Ranson, Stewart Encouraging Learning: towards a theory of the learning school
Gewirtz, Sharon; Ball, Stephen, J. and Bowe, Richard Markets, Choice and Equity in Education 相似文献
Aldrich, Richard (ed) In History and in Education: Essays presented to Peter Gordon
Kohli, Wendy (ed) Critical Conversations in Philosophy of Education
Griffiths, Morwenna Feminisms and the Self: the web of identity
Fryer, Marilyn Creative Teaching and Learning
Atkinson, Paul; Davies, Brian and Delamont, Sara (eds) Discourse and Reproduction: Essays in Honour of Basil Bernstein
Slee, Roger Changing Theories and Practices of Discipline
Woods, Peter and Jeffrey, Bob Teachable Moments: The Art of Teaching in Primary Schools
Best, Ron (ed) Education, Spirituality and the Whole Child
Bassey, Michael Creating Education Through Research
Higham, Jeremy; Sharp, Paul and Yeomans, David The Emerging 16–19 Curriculum: Policy and Provision
Bruner, Jerome The Culture of Education
Halsall, Rob and Cockett, Mike (eds) Education and Training: Chaos or Coherence
McBride, Rob (ed) Teacher Education Policy
Wideen, Marvin F. and Grimmett, Peter P. (eds) Changing Times in Teacher Education
Nixon, Jon; Martin, Jane; McKeown, Penny and Ranson, Stewart Encouraging Learning: towards a theory of the learning school
Gewirtz, Sharon; Ball, Stephen, J. and Bowe, Richard Markets, Choice and Equity in Education 相似文献
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M. Gail Jones Ron Blonder Grant E. Gardner Virginie Albe Michael Falvo Joel Chevrier 《International Journal of Science Education》2013,35(9):1490-1512
Nanotechnology has been touted as the next ‘industrial revolution’ of our modern age. In order for successful research, development, and social discourses to take place in this field, education research is needed to inform the development of standards, course development, and workforce preparation. In addition, there is a growing need to educate citizens and students about risks, benefits, and social and ethical issues related to nanotechnology. This position paper describes the advancements that have been made in nanoscale science and nanotechnology, and the challenges that exist to educate students and the public about critical nanoscience concepts. This paper reviews the current research on nanotechnology education including curricula, educational programs, informal education, and teacher education. Furthermore, the unique risks, benefits and ethics of these unusual technological applications are described in relation to nanoeducation goals. Finally, we outline needed future research in the areas of nanoscience content, standards and curricula, nanoscience pedagogy, teacher education, and the risks, benefits, and social and ethical dimensions for education in this emerging field. 相似文献