百合科(狭义)植物的分布区对中国植物区系研究的意义     

梁松筠 《中国科学院研究生院学报》1995,33(1):27-51

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关于高职院校“课程思政”建设研究的回顾与展望     

梁小军  胡多 《九江职业技术学院学报》2021,(1):38-43

通过可视化等多种方式系统梳理高职院校“课程思政”建设研究的基本情况,可以发现,学界对“课程思政”概念内涵、关键难点及路径的研究日益清晰。现阶段“课程思政”研究还存在实证研究少、特色化体系建设薄弱等问题。高职院校要强化“课程思政”实践研究,着重研究“课程思政”建设的相关保障和落实机制,关注高职院校与研究型高校在“课程思政”建设上的差异。  相似文献   

学前教育公共服务供给的需求逻辑和现实选择     

柯亮 《湖南师范大学教育科学学报》2021,(2):114-122

从我国大众对学前教育资源的需求侧出发研判学前教育公共服务的供给现实,对于厘清当前学前教育资源的需求层次、提升学前教育公共服务供给质量具有关键意义。学前教育公共服务的目标应把握保基本和求发展的需求逻辑,从基本需求、差额需求和超额需求三个层次出发构建学前教育公共服务供给的差序格局。在明晰学前教育公共服务供给现实问题的基础上,提供公共性和共享性的普及化基本公共服务、公益性和分享性的普惠化补充性公共服务、私益性和独享性的个性化非公共服务,保证学前教育公共服务供给的可实现性和可获得性。对学前教育公共服务供给机制的设计探索,需积极构建责任共担与收益共享的供给制度,保证经费供给的可行性和可持续性,从参与主体、服务供给、成本分担、人员管理、监督管理五个维度设计供给路径。  相似文献   

模块化电工电子工程应用实验平台的设计和应用     

陈安  梁远博  胡兆勇  万频  谢小柱 《中国现代教育装备》2021,(1)

为应对专业认证中复杂工程问题能力培养,研发了单元电路实验与系统实验于一体的电工电子工程应用实验平台,学生在完成基本单元电路实验的基础上,可进一步完成由其中大部分单元电路构成的电机调速系统实验。此实验平台在满足模拟电子技术基础单元实验要求的同时,也能开展综合性实验满足工程专业认证强调复杂工程问题能力培养的要求,从而满足了新工科建设对人才培养质量的更高要求。  相似文献   

“互联网+翻转课堂”实验教学设计     

王晓菲  王康元  徐亮  卢慧芬 《中国现代教育装备》2021,(5):25-28

电力系统分析实验课程是电气工程及其自动化专业的主干实践课程,其教学重点和难点在于系统模型的构建与分析。在新工科与“工业4.0”背景下,“互联网+”与翻转课堂相结合的“互联网+翻转课堂”教学模式符合信息化时代教育教学的新规律,适应经济社会快速发展对人才培养的新要求。“互联网+翻转课堂”电力系统分析实验课程体现了个性化、智能化、泛在化实验教学新模式,能够有效地提高学生的实践能力和培养创新精神,也是在课时压缩形势下保证教学质量的重要举措。  相似文献   

基于校企协同育人模式高职复合型技能人才培养探索     

胡晶晶 《长江工程职业技术学院学报》2021,38(2):15-18,23

校企协同育人是职业院校复合型技术技能人才培养的重要手段.以武汉城市职业学院高职汽车专业为例,通过与上汽大众合作共建校企协同育人平台,校企双方创新人才培养方案、优化专业课程体系,打造高水平教师队伍,搭建高水平实训基地,为企业输送了大量高素质复合型技术技能人才.通过对校企协同育人模式进行深度剖析,以期为优质校建设背景下高职院校技术技能人才培养模式改革提供参考.  相似文献   

Opposite effects of miR-155 in the initial and later stages of lipopolysaccharide (LPS)-induced inflammatory response     

Liu  Yuhua  Wan  Xiaopeng  Yuan  Yuan  Huang  Jingjing  Jiang  Yijia  Zhao  Kaiyue  Wang  Yan  Liu  Yang  Wang  Qingqing  Jin  Hongchuan 《Journal of Zhejiang University. Science. B》2021,22(7):590-598

Although microRNA-155(miR-155) is considered a pro-inflammatory mediator, cumulative evidence indicates that it also has anti-inflammatory effects in macrophages and dendritic cells. In this study, we identified the dramatic expression changes of more than half of potential miR-155-targeted genes upon lipopolysaccharide(LPS) stimulation; 223 genes were down-regulated and 85 genes were up-regulated, including suppressor of cytokine signaling 1(SOCS1) and transforming growth factor-β-activated kinase 1-binding protein 2(TAB2), two well-known genes involved in miR-155-mediated regulation of the Toll-like receptor 4(TLR4) signaling pathway. We also found that miR-155 acted as an anti-inflammatory mediator in the initial stage of LPS-induced inflammatory response mainly through repressing TAB2 protein translation, and as a proinflammatory mediator by down-regulating SOCS1 in the later stage. Meanwhile, overexpression of TAB2 3' untranslated region(UTR) in macrophages promoted the development of endotoxin tolerance by competing for binding with miR-155, which resulted in an elevated expression level of SOCS1 protein. These findings provide new insights for understanding the regulatory mechanisms in fine-tuning of LPS-induced innate immune response.  相似文献   

How silicon fertilizer improves nitrogen and phosphorus nutrient availability in paddy soil?     

Liang  Yuqi  Liao  Min  Fang  Zhiping  Guo  Jiawen  Xie  Xiaomei  Xu  Changxu 《Journal of Zhejiang University. Science. B》2021,22(7):521-532

In order to reveal the mechanism of silicon(Si) fertilizer in improving nitrogen(N) and phosphorus(P) nutrient availability in paddy soil, we designed a series of soil culture experiments by combining application of varying Si fertilizer concentrations with fixed N and P fertilizer concentrations. Following the recommendations of fertilizer manufacturers and local farmers, we applied Si in concentrations of 0, 5.2, 10.4, 15.6, and 20.8 μg/kg. At each concentration of added Si, the availability of soil N and P nutrients, soil microbial activity, numbers of ammonia-oxidizing bacteria and P-decomposing bacteria which means that the organic P is decomposed into inorganic nutrients which can be absorbed and utilized by plants, and urease and phosphatase activity first increased, and then decreased, as Si was added to the soil. These indicators reached their highest levels with a Si application rate of 15.6 μg/kg, showing values respectively 19.78%, 105.09%, 8.34%, 73.12%, 130.36%, 28.12%,and 20.15% higher than those of the controls. Appropriate Si application(10.4 to 15.6 μg/kg) could significantly increase the richness of the soil microbial community involved in cycling of N and P nutrients in the soil. When the Si application rate was15.6 μg/kg, parameters for characterizing microbial abundance such as sequence numbers, operational taxonomic unit(OTU)number, and correlation indices of microbial community richness such as Chao1 index, the adaptive coherence estimator(ACE)index, Shannon index, and Simpson index all reached maximum values, with amounts increased by 14.46%, 10.01%, 23.80%,30.54%, 0.18%, and 2.64%, respectively, compared with the control group. There is also a good correlation between N and P mineralization and addition of Si fertilizer. The correlation coefficients between the ratio of available P/total P(AP/TP) and the number of ammonia-oxidizing bacteria, AP/TP and acid phosphatase activity(AcPA), AP/TP and the Shannon index, the ratio of available N/total amount of N(AN/TN) and the number of ammoniated bacteria, and AN/TN and AcPA were 0.9290, 0.9508,0.9202, 0.9140, and 0.9366, respectively. In summary, these results revealed that enhancement of soil microbial community structure diversity and soil microbial activity by appropriate application of Si is the key ecological mechanism by which application of Si fertilizer improves N and P nutrient availability.  相似文献   

教学能力比赛反思的职业院校青年教师发展研究     

刘颋  陈亮 《济南职业学院学报》2021,(1):68-70

全国职业院校教师教学能力比赛举办多年,不断探索,已经成为提升教师教学能力的重要抓手,大赛在赛项设置、比赛内容和评价体系方面逐年完善,从单一注重教师信息化教学水平到全面考察教师的真实教学能力,对于教师教学能力提升、课程建设水平等方面有显著提升。通过分析职业院校教师教学能力比赛对青年教师发展模式实施状况的影响,提出教师教学能力比赛促进青年教师发展有待提升的方面,探讨职业院校青年教师发展建议,真正落实"以赛促教",促进职业院校青年教师的综合素质、专业化发展和创新能力全面提升。  相似文献   

高职公共基础课“课程思政”建设实践模式探究     

王良 《天津职业院校联合学报》2021,(4):104-110

“课程思政”建设与实施,是新时代高校贯彻落实习近平总书记教育思想的生动实践。它缘起于2016年12月在北京召开的全国高校思想政治工作会议,衍生于上海大学为代表的高校课程思政试点改革探索,推广于教育部的“课程思政”建设的专项方案,深化于持续不断的学习和践行习近平总书记关于教育的论述中,已形成不少专业课探索性成果。尽快破解占高职院校总课时近三分之一的公共基础课,“课程思政”建设难题,是补齐当下高职院校“课程思政”建设短板,助推大思政协同教育的质量和高职院校双高建设的关键所在。  相似文献