现代篮球攻击性个人防守技术及其运用

以现代篮球防守技、战术的主要特征为参考系,分析了现代篮球攻击性个人防守技术方法,攻击性个人防守技术运用,并提出了现代篮球攻击性个人防守能力的要素及其训练手段。     

常压模拟高住低练对大鼠RBC、Hb及HCT的影响

目的探讨常压模拟高住低练对大鼠RBC、Hb及HCT的影响。方法60只SD大鼠随机分成两大组对照组(Ⅰ)和运动组(Ⅱ)。其中,Ⅰ分为常氧组(A)、高住8h组(B)和高住12h组(C);Ⅱ分为常氧运动组(D)、高住8h运动组(E)和高住12h运动组(F)。D、E、F组大鼠每天在坡度为0的动物跑台上以25m/min的速度训练1h。训练完后,将B、E组和C、F组放入氧浓度为12.5%(相当于海拔4000m)的低氧舱内8h和12h。实验期为4w,5d/w。实验后取血进行全血红细胞计数(RBC)、血红蛋白(Hb)、红细胞压积(HCT)检测。结果B组和C组RBC、Hb、HCT值显著上升(P<0.001);D组和E组RBC、Hb、HCT值显著下降(P<0.001);B组与E组比较,3项指标均具有高度显著性差异(P<0.001)。结论模拟高原环境能够使SD大鼠RBC、Hb及HCT值显著增加,实验采用的模拟高住低练训练模式使SD大鼠RBC、Hb及HCT值降低,且高住8h组和高住12h组、高住8h运动组和高住12h运动组之间差异无显著性。     

南社佚名诗人稿本的发现

前时孔网上有两册旧抄本拍卖,标价其实并不高,但以所上图片影影绰绰之故,连续四次（事后查询得知）上拍而无人问津。笔者略略看出一件似是诗抄,一件为文论,语涉近代史实,感觉其中应有些意思,待第四次流拍之后,跟拍主商价要下。购品收到,视其书法、纸张,     

高校班级学风建设的探索与实践

加强班级学风建设工作，营造良好的班级学习风气，是形成优良校风的基础，是保证教育质量，培养高素质人才的重要前提，班级学风建设也是高校班主任工作的核心内容之一。     

对我国布拉德福定律研究文献的科学计量研究

通过中文科技期刊数据库(维普数据库)检索到的有关布拉德福定律研究文献的多方面统计,包括文献产出量分析、文献合著分析、来源期刊分布等,旨在揭示我国布拉德福定律的研究现状。     

灯盏花的研究进展

综述了近几十年来有关灯盏花的化学成分、药理作用、配伍及化学成分的构效关系研究工作．     

高校多媒体教学系统的运行管理与维护

多媒体教学系统是进行课堂教学重要基础设施,其正常的运行对于教学活动的开展至关重要.根据多媒体教室维护和管理的经验,总结了多媒体教室使用管理方法和维护经验,以便更好地使用多媒体教室,充分发挥多媒体教室在教育教学中的作用.     

Components of Conceptual Ecologies

The theory of conceptual change is criticized because it focuses only on supposed underlying logical structures and rational process processes, and lacks attention to affective aspects as well as motivational constructs in students’ learning science. This is a vast underestimation of the complexity and diversity of one’s change of conceptions. The notion of conceptual ecology provides a context for understanding individuals’ conceptual change learning, as it is the environment through which all information is interpreted. This research investigated how high school students’ statements, made in answering questions, reflect selected components of their conceptual ecologies. Data for this study was collected from six interviews in which seven students took part. The data also include the science teacher’s profiles of each student, the students’ personal journals, their assignments, and their examinations and answers in class. The analysis presented will here include only those components that were represented in the discourse of the seven high school students who were interviewed. When students were asked questions, there was evidence of the engagement of the various components of conceptual ecologies. These components include: epistemological commitments, metaphysical beliefs, the affective domain and emotional aspects, the nature of knowledge, the nature of learning, the nature of conceptions, and past experience. Evidence from this study suggests that these components might function as constraints to learning. This study contributes to the field by expanding our knowledge of the components of high school students’ conceptual ecologies through its definition of the categories and themes associated with those components. In examining across the range of components, the study illustrates the variety and sources of science conceptions within high school students’ conceptual ecologies.     

合成生物学工业应用的现状和展望

通过合成生物学技术可以实现化学品的生物合成,从而为摆脱石油资源依赖提供了可能。合成生物学技术的发展极大地提高了微生物细胞工厂生产化学品的能力,创造的新菌种、新工艺可以有效替代传统工艺,显著降低污染,大幅减少能耗,提升传统发酵行业的技术水平。文章对利用合成生物学技术构建细胞工厂以及构建多酶分子机器来生产化学品的关键因素和典型案例进行了综述,并对合成生物学技术工业应用的未来进行了展望。     

建筑智能化省级实验教学示范中心的建设与实践

高等院校实验教学示范中心建设是教育部质量工程的重要内容之一.结合江苏省省级建筑智能化实验教学示范中心建设的体会,介绍了建筑智能化实验教学示范中心实践教学体系建设、实验教学改革、实验中心的特色建设及发挥实验中心辐射和示范作用等方面的成效与经验.