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区域环境中农作物材料的运用
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作者 邱小勤 《求知导刊》 2019年第37期74-75,共2页
教育家陈鹤琴先生提出“大自然、大社会都是活教材”。大自然中蕴含着丰富的教育资源,他倡导在大自然中发掘一切可利用的自然资源。但是在资源获取过程中,教师不能做随随便便的“拿来主义”者,必须从幼儿园和幼儿的实际出发,对幼儿身边... 教育家陈鹤琴先生提出“大自然、大社会都是活教材”。大自然中蕴含着丰富的教育资源,他倡导在大自然中发掘一切可利用的自然资源。但是在资源获取过程中,教师不能做随随便便的“拿来主义”者,必须从幼儿园和幼儿的实际出发,对幼儿身边的资源进行调查、梳理、加工、合理运用,让这些资源真正成为能够引发幼儿主动探究、想象和创造的重要媒介。 展开更多
关键词 区域环境 农作物材料 幼儿教学
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浅析班级美工区环境创设中农作物材料的有效运用
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作者 薛丽峰 《名师在线》 2020年第28期79-80,共2页
适宜的美工区环境对于幼儿的审美、欣赏、表现、创造等能力发展具有重要的影响和作用。一年来,笔者围绕农作物材料创设有本土特色的美工区环境,支持、引导幼儿与农作物材料进行互动,以发展幼儿发现美、创造美的能力。
关键词 班级美工区 环境创设 农作物材料
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农作物秸秆材料新产品及生态环保型人造板的研制开发 被引量:3
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作者 周晓燕 《林业科技开发》 2002年第3期8-9,共2页
关键词 农作物秸秆材料 研制 开发 生态环保型人造板
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Study on Antioxidants and Lipid Peroxidation from Pea Crops of Platean 被引量:11
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作者 李园媛 《Agricultural Science & Technology》 CAS 2009年第4期19-21,共3页
[ Objective] The aim of this study was to discuss the effect of antioxidants and lipid peroxidation from pea crops of plateau. [ Method] SOD enzyme liquid from pea crops of plateau was extracted by means of protein co... [ Objective] The aim of this study was to discuss the effect of antioxidants and lipid peroxidation from pea crops of plateau. [ Method] SOD enzyme liquid from pea crops of plateau was extracted by means of protein concentration assay, enzyme activity assay and antioxidant activity determination by DPPH method, peroxide activity inhibition of in vitro tissues from mice by homogenate MDA colorimetry method and lipid peroxidation assay of in vitro tissues. [ Result ] IC50 of the crude enzyme liquid extracted from pea on DPPH was 55.16 mg/L, while the scavenging rate of the crude enzyme liquid was lower than that of ascorbic acid, tea polyphenol and citric acid with the same concentration. The synergistic effect was found in ascorbic acid and crude enzyme liquid, but the synergism of ascorbic acid was better than that of citric acid. IC50 of SOD enzyme liquid extracted from pea on DPPH was 11.1 mg/L, which was better than that of tea polyphenol and closely similar to that of ascorbic acid. SOD enzyme liquid extracted from pea had an inhibitory effect on MDA production from in vitro tissues such as liver, kidney and heart, especially for a significantly inhibitory effect on MDA from liver in vitro. When the concentration was 0.25 mg/ml, the inhibition rate reached 78.3%, and then the inhibition rate increased little with the concentration incresas, while its effect on heart and kidney were inferior. [ Conclusion] SOD crude enzyme liquid and SOD enzyme liquid extracted from pea all have certain DPPH scavenging capacity, while SOD enzyme liquid extracted from pea has an inhibitory effect on lipid peroxidation. 展开更多
关键词 Pea crops of plateau SOD DPPH Lipid peroxidation IC50
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