印尼正规小学华文教材使用及本土华文教材编写现状研究     

蔡丽 《暨南大学华文学院学报》2011,(3):14-22

本文通过实地调查、访谈以及文献研究等方式考察和分析了印尼小学华文教材的使用情况,指出了印尼小学在教材使用及编写上存在的问题,并依此提出相应的解决对策,以期提高教材使用及编写的效果,促进华文教学的发展。  相似文献   

当代高校大学生报社运作模式化探索——基于江西省高校大学生报社     

赫芳随  蔡毅 《中国教育技术装备》2011,(33):29-30

首先论证当代高校大学生报社运作模式化的必要性,其次论述当代高校大学生报社运作模式化的可行性,最后以江西省内的高校大学生报社运营实践为蓝本,较为全面地阐述当代高校大学生报社的模式化运作。  相似文献   

高校教学档案信息安全管理策略     

蔡小簪 《科教文汇》2020,(4):25-26

为适应当前社会的飞速发展,全国高校都开始了扩招政策,但是高校在扩大自身规模的同时,却忽略了教学档案信息安全管理的重要性。教学档案信息记录着全校师生的教学实践和生活轨迹,因而加强其信息安全管理、提出行之有效的管理策略是十分必要的。  相似文献   

健康领域的支付意愿研究综述     

李娟  岳宗朴  李慧  李琳  王晓丹  李伟国  刘彩 《科教文汇》2020,(5):80-82

目的:归纳健康领域中有关支付意愿及其影响因素的研究,总结健康领域中支付意愿相关研究现状及前景。方法:在中国知网、万方数据库与维普网检索相关文献,经筛选后获取信息。结果:共纳入50篇相关文献,其中中国知网纳入31篇,万方数据库纳入17篇,维普网纳入2篇。结论:目前我国关于支付意愿的研究仍处于探索阶段,且大部分集中在环境领域,涉及健康领域的研究较少;在健康领域中对支付意愿的研究主要集中在具体疾病及医疗保险方面,其他方面涉及的较少。  相似文献   

教学与科研融合的高校生物学实验教学模式探究     

周棋赢  韩月华  袁红雨 《科教文汇》2020,(6):55-57

文章分析了目前本科生生物学实验教学与高校生物学研究的现状,倡导将本科生生物学实验教学融于科学研究的教学模式;指出了这种新的生物学实验教学模式在资源配置以及创新型生物人才培养方面的优势;探讨了这种教学模式的教学体系、教学内容和方法以及教学评估方法。对于高校生物学实验教学改革和生物专业人才培养具有重要意义。  相似文献   

初中语文课堂培养学生核心素养的教学探索     

蔡鸿 《科教文汇》2020,(6):115-116

核心素养对培养学生良好的学习习惯和浓厚的学习兴趣具有不可忽视的作用。随着我国经济的不断发展,人们的物质生活越来越充裕,但在精神层面仍有缺失。因此,作为初中语文教师,不能忽视学生的核心素养建设。  相似文献   

TED演讲所传播的文化对当代大学生人格塑造的影响     

董宏宇 《科教文汇》2020,(11):181-182

TED演讲视频短小精悍,且富有感染力,内容涉及科技、教育、健康和思想等各个方面。本文通过对本校学生调查后发现:通过两个学期的视频学习和讨论后,学生不但对视频内容印象深刻,而且对演讲者的观点都表示认同,这对当代大学生的人格塑造产生了较大的正向效果。  相似文献   

Ultrabithorax is a key regulator for the dimorphism of wings,a main cause for the outbreak of planthoppers in rice     

Fangzhou Liu  Xiang Li  Muhua Zhao  Mengjian Guo  Kehong Han  Xinxin Dong  Jing Zhao  Wanlun Cai  Qifa Zhang  Hongxia Hua 《国家科学评论(英文版)》2020,7(7):1181

Rice planthoppers, the most devastating rice pests, occur in two wing forms: the short-wing form for rapid population growth and long-wing form for long-distance migration, which together create the mechanism for outbreak. Here we show that Ultrabithorax (Ubx) is a key regulator for switching between the long- and short-wing forms of rice planthoppers. Ubx is expressed in both forewing and hindwing pads, which is different from the canonical model of Ubx expression. In brown planthoppers, expression of Ubx (NlUbx) is regulated by nutritional status of the rice host. High-quality young plants induce NlUbx expression leading to the short-wing form; low-quality ripe plants reduce NlUbx expression resulting in long-wing form. We also showed that NlUbx is regulated by the insulin receptors NlInR1 and NlInR2. The default expression of NlInR1 inhibits NlUbx resulting in long-wings, while high-quality hosts induce NlInR2 expression, which represses NlInR1 thus promoting NlUbx expression to produce short-wings.  相似文献   

Bi2Te3-based applied thermoelectric materials: research advances and new challenges     

Jun Pei  Bowen Cai  Hua-Lu Zhuang  Jing-Feng Li 《国家科学评论(英文版)》2020,7(12):1856

  相似文献   

Olivine-norite rock detected by the lunar rover Yutu-2 likely crystallized from the SPA-impact melt pool     

Honglei Lin  Zhiping He  Wei Yang  Yangting Lin  Rui Xu  Chi Zhang  Meng-Hua Zhu  Rui Chang  Jinhai Zhang  Chunlai Li  Hongyu Lin  Yang Liu  Sheng Gou  Yong Wei  Sen Hu  Changbin Xue  Jianfeng Yang  Jie Zhong  Xiaohui Fu  Weixing Wan  Yongliao Zou 《国家科学评论(英文版)》2020,7(5):913

Chang’E-4 landed in the South Pole-Aitken (SPA) basin, providing a unique chance to probe the composition of the lunar interior. Its landing site is located on ejecta strips in Von Kármán crater that possibly originate from the neighboring Finsen crater. A surface rock and the lunar regolith at 10 sites along the rover Yutu-2 track were measured by the onboard Visible and Near-Infrared Imaging Spectrometer in the first three lunar days of mission operations. In situ spectra of the regolith have peak band positions at 1 and 2 μm, similar to the spectral data of Finsen ejecta from the Moon Mineralogy Mapper, which confirms that the regolith''s composition of the landing area is mostly similar to that of Finsen ejecta. The rock spectrum shows similar band peak positions, but stronger absorptions, suggesting relatively fresh exposure. The rock may consist of 38.1 ± 5.4% low-Ca pyroxene, 13.9 ± 5.1% olivine and 48.0 ± 3.1% plagioclase, referred to as olivine-norite. The plagioclase-abundant and olivine-poor modal composition of the rock is inconsistent with the origin of the mantle, but representative of the lunar lower crust. Alternatively, the rock crystallized from the impact-derived melt pool formed by the SPA-impact event via mixing the lunar crust and mantle materials. This scenario is consistent with fast-cooling thermal conditions of a shallow melt pool, indicated by the fine to medium-sized texture (<3 mm) of the rock and the SPA-impact melting model [Icarus 2012; 220: 730–43].  相似文献