基于系统思维的创新创业教育协同机制研究

创新创业教育作为新发展格局中的内生变量,在新时代高等教育高质量发展中具有举足轻重的作用.但从系统思维的视角下审视,在创新创业教育系统中当前仍存在育人机制整体协同性程度不高、教育模式结构层次性不完善、内部要素动态发展性挑战应对不足、教育系统开放性程度较低等问题.针对这些问题,运用系统思维从主体合力、过程合力、内容合力、渠道合力四个维度去探究完善创新创业教育协同机制的优化路径,从而进一步完善创新创业人才的培养.     

特色学校创建:概念透视与模式重构

近年来,创建特色学校成为我国中小学改革的热点.就目、前国内实践状况来看,特色学校建设呈现出基本概念模糊、理念欠缺、切实可行的操作模式与方法缺乏等问题.特色学校创建应强调对学校的整体改善,关注自下而上、内在发展和相关技术的运用,通过强化学校的优势领域等逐步形成学校共同愿景,实现师生认知、行为方式的改变.     

关系数据库设计范式应用实例剖析

关系数据库中的关系必须满足一定的要求,满足不同程度要求的为不同范式,本文就数据库设计中经常使用的1NF、2NF、3NF和BCNF进行了详细的剖析,通过实例指出满足一定的范式可以使数据库结构清晰简洁。     

学校管理标准:构建及思考——兼谈UNICEF爱生学校标准的主要内容

作为一个国家教育管理的标志和衡量尺度,学校管理标准具有引领、规范、监测、预测和解释学校管理及学校教育发展的多种功能。为促进我国学校管理的规范化和科学化,克服"凭经验办教育"、"凭感觉做管理"的历史缺陷,我国应尽快建立自己的学校管理标准。联合国儿童基金会的"爱生学校标准"值得我们借鉴。     

毛泽东社会主义思想的理论贡献与时代意义

毛泽东社会主义思想的全面提出为开拓中国特色社会主义事业留下了宝贵的理论遗产。它是社会主义思想史上的一次飞跃。其理论贡献和时代意义，为我们在新的发展历史阶段上，建设中国特色社会主义提供了重要启示。     

电导法准确测量乙酸乙酯皂化反应速率常数的实验方法研究

本文拟在通过实验,叙述乙酸乙酯的皂化反应速率常数的测定,使用原来酯碱有相同起始浓度的所谓常规电导法进行测定,其实验结果不准确,与化学方法测定的文献值相差较大,分析误差产生的内在原因后,提出改进电导法的测定原理。克服了原来常规电导法的不足,并用实验数据加以论证,从而得出较满意的结果。     

Sap flow response of Eucaylyptus (<Emphasis Type="Italic">Eucalyptus urophylla</Emphasis>) to environmental stress in South China

Sap flow and environmental conditions were monitored at two Eucalyptus (Eucalyptus urophylla S.T. Blake) plantations at Hetou and Jijia, located in Leizhou, Zhanjiang, Guangdong Province. It was found that daily sap flux density (SFD) of Eucalyptus was closely related to daily atmospheric vapor pressure deficit (VPD) (R ²=0.76, P=0.01 at Hetou and R ²=0.7021, P=0.01 at Jijia) at both sites. No significant relationship existed between daily SFD and mean daily air temperature at both sites. Daily SFD varied with wind speed Y=−17585X ³+15147X ²−1250.7X+2278.4 (R ²=0.68; P=0.01) at Hetou and Y=−101.67X ³−1.65X ²−376.4X+1914.8 (R ²=0.40, P=0.05) at Jijia, where Y was daily SFD, X was daily wind speed. Experimental observations yielded the following data: (1) the critical lower and upper daily VPD threshold were 0 and 2 kPa, within which daily SFD varied from 540±70 L/(m²·d) to 4739±115 L/(m²·d) at Hetou site, from 397±26 L/(m²·d) to 3414±191 L/(m²·d) at Jijia site; (2) Diurnal SFDs at Hetou site were much higher under low relative humidity (<30%) and slightly lower under high relative humidity (>80%) compared with those at the Jijia site; (3) The upper and lower threshold of daily and diurnal RAD for the optimal water use of E. urophylla plantations were 18±2.7 and 2±1 MJ/(m²·d), 669 and 0 J/(cm²·h) during the observation period. Project supported by Knowledge Innovation Funds from Chinese Academy of Sciences (Nos. KSCX2-SW-120, KZCX1-SW-01-01A3) and the Key Project of Guangdong Natural Science Foundation (No. 010567), China     

Na?ve Students’ Conceptual Development and Beliefs: The Need for Multiple Analyses to Determine what Contributes to Student Success in a University Introductory Physics Course

This research involved na?ve physics learners who were interested in majoring in science or engineering. In a semester-long quasi-experimental study, open-ended pretests and weekly interviews were used to analyse the progressive development of students’ conceptions relating to sound and wave motion. Semi-structured interviews were also conducted to elucidate: (1) how their conceptions developed from everyday conceptions to unclear scientific conceptions to scientific conceptions, and (2) their beliefs of physics knowledge. Despite efforts to enable these students to learn physics, the findings showed that only two out of ten students developed acceptable physics conceptions during the course that would enable them to pursue the subject to a higher level. Also, students’ conceptual development was found to be related to their cognitive understanding and to epistemological beliefs of physics. Therefore, to facilitate na?ve physics learners’ success in a general physics course, in addition to the acquisition of content knowledge, explicit emphasis needs to be placed on the nature of physics knowledge.