上海市高校高水平足球队建设与管理探索

高校高水平运动队是我国体育事业的重要组成部分,准确评估是促进发展的基础。文章对上海市高校高水平足球队的基本情况、获奖情况、建设情况、管理情况、训练情况等进行了分析,总结了上海市高校高水平足球队建设的成效与问题,并提出了相应的建议,以期为上海市高校高水平足球队的发展提供参考。     

授权型领导影响知识型员工创新的信任机制

授权型领导是领导对员工信任基础上所作出的管理决策和领导方式,并影响到员工创新行为。本文研究授权型领导如何通过影响知识型员工的两种信任,并进一步影响知识型员工创新行为的中间信任机制,以及组织支持感在该机制中的调节作用。通过配对调研和数据收集与处理,实证研究发现,授权型领导能够正向影响知识型员工对领导产生的基于情感的信任和基于认知的信任,并最终正向影响知识型员工的创新行为,组织支持感正向调节授权型领导对知识型员工基于情感的信任和基于认知的信任的影响关系。     

“旋转木马教学法”在药理学中的应用——以“高血压的临床用药”为例

本文将“旋转木马教学法”运用到药理学的教学中,以高血压的临床用药为例,教师创设连锁药店职场情境,学生按照“旋转木马”教学原则实施高血压“问病荐药”角色扮演,融入企业文化和元素,明确课程主题,在真实的职场环境中实施教学,激发学生的学习兴趣,培养学生的职业素养。     

浅谈如何适应高中到大学的学习转变——以攻读大学生物学专业为例

自2016年高考改革以来,已经有三届考生通过新高考进入大学。随着高考体制的不断变革与完善,各学科考试的新颖度与难度也在逐年增加,作为亲历新高考的考生,在此文中一方面是想谈谈近年来高考体制的具体变化;另一方面,则是结合个人在大学学习中的心得,为即将面对高考的考生们提供一些建议,以便考生能更好地适应高中至大学的转变。     

Steering elementary steps towards efficient alkaline hydrogen evolution via size-dependent Ni/NiO nanoscale heterosurfaces

Alkaline hydrogen evolution reaction (HER), consisting of Volmer and Heyrovsky/Tafel steps, requires extra energy for water dissociation, leading to more sluggish kinetics than acidic HER. Despite the advances in electrocatalysts, how to combine active sites to synergistically promote both steps and understand the underlying mechanism remain largely unexplored. Here, Density Functional Theory (DFT) calculations predict that NiO accelerates the Volmer step while metallic Ni facilitates the Heyrovsky/Tafel step. A facile strategy is thus developed to control Ni/NiO heterosurfaces in uniform and well-dispersed Ni-based nanocrystals, targeting both reaction steps synergistically. By systematically modulating the surface composition, we find that steering the elementary steps through tuning the Ni/NiO ratio can significantly enhance alkaline HER activity, and Ni/NiO nanocrystals with a Ni/NiO ratio of 23.7% deliver the best activity, outperforming other state-of-the-art analogues. The results suggest that integrating bicomponent active sites for elementary steps is effective for promoting alkaline HER, but they have to be balanced.     

MKRN3 regulates the epigenetic switch of mammalian puberty via ubiquitination of MBD3

Central precocious puberty (CPP) refers to a human syndrome of early puberty initiation with characteristic increase in hypothalamic production and release of gonadotropin-releasing hormone (GnRH). Previously, loss-of-function mutations in human MKRN3, encoding a putative E3 ubiquitin ligase, were found to contribute to about 30% of cases of familial CPP. MKRN3 was thereby suggested to serve as a ‘brake’ of mammalian puberty onset, but the underlying mechanisms remain as yet unknown. Here, we report that genetic ablation of Mkrn3 did accelerate mouse puberty onset with increased production of hypothalamic GnRH1. MKRN3 interacts with and ubiquitinates MBD3, which epigenetically silences GNRH1 through disrupting the MBD3 binding to the GNRH1 promoter and recruitment of DNA demethylase TET2. Our findings have thus delineated a molecular mechanism through which the MKRN3–MBD3 axis controls the epigenetic switch in the onset of mammalian puberty.     

Drone-based entanglement distribution towards mobile quantum networks

Satellites have shown free-space quantum-communication ability; however, they are orbit-limited from full-time all-location coverage. Meanwhile, practical quantum networks require satellite constellations, which are complicated and expensive, whereas the airborne mobile quantum communication may be a practical alternative to offering full-time all-location multi-weather coverage in a cost-effective way. Here, we demonstrate the first mobile entanglement distribution based on drones, realizing multi-weather operation including daytime and rainy nights, with a Clauser-Horne-Shimony-Holt S-parameter measured to be 2.41 ± 0.14 and 2.49 ± 0.06, respectively. Such a system shows unparalleled mobility, flexibility and reconfigurability compared to the existing satellite and fiber-based quantum communication, and reveals its potential to establish a multinode quantum network, with a scalable design using symmetrical lens diameter and single-mode-fiber coupling. All key technologies have been developed to pack quantum nodes into lightweight mobile platforms for local-area coverage, and arouse further technical improvements to establish wide-area quantum networks with high-altitude mobile communication.     

“985工程”院校图书馆电子资源揭示和组织的现状调查

对39所＂985工程＂院校图书馆网站进行调查,从是否有OPAC编目揭示、电子资源揭示的方式和种数、图书馆首页资源揭示的方式和种数、是否有使用指南及指南方式、是否提供统一检索以及统一检索平台的类型等五方面获取了图书馆电子资源组织和揭示的情况,并提出了相关建议,为国内其他图书馆科学合理地组织和揭示电子信息资源提供参考。     

河南省大学生跆拳道锦标赛现状及对策研究

文章运用文献资料法和访谈法等研究方法,从河南省大学生跆拳道锦标赛现状入手,对呈现出来的问题进行分析.结果显示,赛会规模较小、裁判员问题、教练员问题以及竞赛水平差异大,都是制约河南省跆拳道锦标赛发展的问题所在.文章针对所呈现出来的问题进行研究,为河南省大学生锦标赛快速、健康发展提出一些建议.     

现代信息技术在高职英语课堂教学中的运用

为进一步深化高职英语教学改革,提高高职院校学生英语学习的积极性和能动性,培养学生的自主学习能力和运用能力,将现代信息技术融合到整个高职英语教学过程中的改革方法已经得到了高职教育界的广泛认可。然而在教学过程中如何有效利用现代信息技术,如何对其进行行之有效的管理和测评依然是众多教育学者和从事高职英语一线教学的教师们思考和研究的问题。