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以活动为媒介,促学生写作灵感迸发
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作者 陈明兰 《课外语文(下)》 2017年第9期69-69,共1页
小学生在学习语文过程中,学习习作是必不可少的一个环节。笔者在自己的教学经历中,积极设计一些符合学生身心发展的活动方案,力求以活动为媒介,促使学生写作的灵感如喷泉迸发。本文就将针对实际操作过程展开具体论述。
关键词 习作现状 设计活动 解剖过程 系列活动 少先队活动
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Morphogenesis of Oil Palm Fruit (Elaeis guineensis Jacq.) in Mesocarp and Endocarp Development 被引量:1
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作者 Hermine Bille Ngalle Joseph Martin Bell +3 位作者 Georges Franck Ngando Ebongue Lambert Nyobe Felix Chancelin Ngangnou Godswill Ntsefong Ntsomboh 《Journal of Life Sciences》 2013年第2期153-158,共6页
This work aims to study the development of the pericarp of the fruit of Elaeis guineensis Jacq. var. dura. The thickness, the water and the oil contents of its tissues are evaluated every two weeks, from pollination t... This work aims to study the development of the pericarp of the fruit of Elaeis guineensis Jacq. var. dura. The thickness, the water and the oil contents of its tissues are evaluated every two weeks, from pollination to the maturity of the fruit. The development of the oil palm fruit takes 5.5 months. The endocarp reaches its maximum thickness at the 70th DPP (day post-pollination), with a water content of 72%. It then starts its dehydration, while sclerifying. It therefore isolates the seed at start and later protects it. The mesocarp is visible at anthesis and its water content is close to 92%. From the 100th DPP, it begins a continuous dehydration associated, from the 130th DPP, with an active lipids biosynthesis. Ultimately, the pericarp of the oil palm fruit fulfills both functions, namely to protect the seed by early sclerification of the endocarp and ensure the dissemination of the species by the high oil content of the mesocarp. A comparative anatomy of the pericarp tissues of the three genotypes.of E. guineensis Jacq., during the first three weeks of fruit development, will enhance the understanding of the primary effect of sh gene. 展开更多
关键词 Elaeis guineensis Jacq. FRUIT ENDOCARP MESOCARP development.
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Laparoscopic Cholecystectomy in Situs Inversus Totalis:a Case Report
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作者 Sheng-ning Zhang Li Li +4 位作者 Jiang-hua Ran Jing Liu Yu Liang Yang Gao Min-jie Yang 《Chinese Medical Sciences Journal》 CAS CSCD 2013年第4期245-247,共3页
SITUSinversus totalis is uncommon anatomic anomaly, with gallbladder on the left side} Since the first known laparoscopic cholecystectomy in a patient with situs inversus has been reported by Camposand Sipes in 1991,2... SITUSinversus totalis is uncommon anatomic anomaly, with gallbladder on the left side} Since the first known laparoscopic cholecystectomy in a patient with situs inversus has been reported by Camposand Sipes in 1991,2 there have been only approximately 40 cases of laparoscopic cholecystectomy performed in patients with situs inversus reported in the published literatures.3' 4 These cases may cause difficulties in the diagnostic and therapeutic management due to the mirror-image anatomy during operation, which requires more technically procedures and needs reorientation of visuomotor skills to the left upper quadrant. We herein discuss technical and diagnostic difficulties and review the literatures. 展开更多
关键词 laparoscopic cholecystectomy sims inversus totalis
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