天水地区鱼类资源多样性研究

天水位于世界两大动物地理区古北界和东洋界在我国分界线的秦岭西端,属我国华北、华中、蒙新、青藏四大动物地理分布区的交汇地带,鱼类资源比较丰富。有鱼类31种,隶属于4目6科24属,其中野生鱼类26种,渭河水系有15种,嘉陵江水系有9种,两大水系鱼类相似性指数为16.67%,区系构成非常复杂。通过对天水地区鱼类的地理分布及有关分布情况的调查、资料收集、整理,研究了天水地区鱼类资源的多样性。     

梁陈规讽诗探讨

规讽诗以含蓄的手法规劝、嘲讽不合理的社会现象 ,以兴治济身、振危释惫为创作目的。梁陈规讽诗的选题多讽谏朝政 ,从不同阶层诗人的感情角度出发 ,多向性地揭示了统治阶级的内部矛盾 ,披露了门阀士族与寒门庶族之间的派别之争。其特点以刺官为主。在艺术上 ,因受儒家诗教、诗人社会地位的影响 ,梁陈规讽诗呈现出婉曲隐晦的创作特点。     

On Media Concentration and the Diversity Question

Corporate mergers and the consolidation of ownership in the American communications arena have long been sources of concern. U.S. regulatory and antitrust policy traditionally attempted to secure a “diversity of voices” structurally, largely through rules regarding ownership. Although the meaning of diversity was always problematic and undertheorized, the Federal Communications Commission long set ceilings on the numbers of broadcast outlets any single person or corporation could own and enacted cross-ownership rules such as a prohibition against a corporation owning a newspaper and broadcast outlets in the same market. These rules, and the FCC's authority to make them, were upheld, occasionally even compelled, by the federal appellate courts. In the last 20 years, however, legal trends, in conjunction with political developments, have undermined the diversity rationales behind ownership rules and associated structural regulations of mass media. Paradoxically, even as media corporations are becoming larger and presumably more powerful, ownership regulations are being rescinded or struck down. This article explains this history. It concludes with a suggestion that the First Amendment metaphor of a marketplace of ideas is misplaced, and of how our thinking about media ownership and diversity might be better served by the metaphor of a mixed media system.     

地理多样性与产品创新:外部环境和企业能力的调节

基于国内209家制造企业及944家供应商的数据,分析主体外部环境因素(技术不确定性、市场竞争程度)和内部能力因素(技术能力、企业柔性)对其供应商地理位置多样性和产品创新之间关系的调节作用。研究发现,技术不确定性能正向调节地理多样性对产品创新的作用,而市场竞争程度则会削负向调节这种作用;企业技术能力负向调节地理多样性与产品创新之间的关系,而企业柔性则对二者的关系起正向调节作用。     

绿春哈尼族“阿倮欧滨”祭祀的生态实践——兼谈哈尼族传统文化对生物多样性的保护

绿春县城一带13个村落延续了700多年的"阿倮欧滨"祭祀,不仅是哈尼族传统文化的可贵传承,更是哈尼族生态保护的典范实践。表层意义上,"阿倮欧滨"联合祭祀不断强化着祭祀圈13个村落的地缘联系,以及母寨"窝拖布玛"在其中的神圣地位;深层意义上,联合祭祀是对红河南岸哈尼族地区至关重要的水源地"阿倮欧滨"及其周围林地的持续有效保护。"阿倮欧滨"祭祀作为绿春哈尼族传统文化深层内核机制,持续不断地发挥着对当地生物多样性的保护功能。     

The effect of context on student engagement in engineering

The self-belief, motivation, tendency to procrastinate and learning styles of engineering students are discussed. It is proposed that engineering has developed an idiom and a learning approach that favours the dominant client, i.e. men, while simultaneously undermining the self-efficacy and motivation of women. Thematic coherence and teaching within a context that is familiar to students have been shown previously to be effective approaches for engaging students and are extended here to utilise the common experiences of all students to initiate the learning cycle. These approaches are combined with a template for teaching that uses the 5Es (Engage, Explore, Explain, Elaborate and Evaluate) in order to render the fundamentals of engineering more accessible to all students. This methodology can be introduced by individual instructors, who will be rewarded by students who are more engaged, more motivated and more likely to give a higher rating to the instructor and the course.     

不同角速度下自行车运动员髋关节肌群等速向心收缩的肌力研究

利用Con-Trex等速肌力测试与训练系统,以180°/s、120°/s、60°/s的3种角速度对13名男子优秀自行车运动员和13名女子优秀自行车运动员左腿髋关节进行等速向心收缩测试。获得了相应的等速向心收缩的伸屈肌峰值力矩、伸屈肌总功、伸屈肌平均功率等指标,并结合项目特点分析各角速度下指标的差异。     

论民族体育的审美价值

采用美学和人类学相结合的理论与方法,从剖析中华民族传统体育审美特征的异化入手,对传统体育活动的审美价值进行深入考察评估;通过跨文化比较,认为民族传统体育活动的重要价值在于表现体育文化的多样性,而更接近天然状态的质朴纯真魅力是其核心与灵魂。因此,充分尊重少数民族传统体育活动的原生态审美特征,存留原汁原味的审美对象,把活动内容、服装、器械、场所和环境作为非物质文化遗产加以保护,并从中汲取有利于当代体育发展的人文因素,乃当务之急。     

抓住机遇推进高黎贡山国家生物多样性保护基地建设

生物多样性不仅是云南的优势,也是最有潜力的新经济增长点。作为滇西北生物多样性的重要组成部分,高黎贡山在我国乃至国际地理学与生物多样性保护中,占有极其重要的地位。积极推进生物多样性保护基地建设对于云南省生物资源、旅游资源开发利用,实施可持续发展战略,推进我国乃至世界生物多样性的保护,具有重要意义。     

中学体育与健康学生学业评价的实施分析

传统的学业评价虽然能在一定程度上体现学生学习情况,但不能做到因人而异,不能做到全面的、综合的体现一个学生的学业学习水平及态度,也不能体现一个学生的技能发展及体能增长,也不能做到评价结果与教学反馈之间的有效关联。我们这几年来通过自身的课题研究及引入先进地区的评价体系,逐渐形成了具有特色的能够基本全面反映学生真实学业能力的评价体系,并且很大程度提高了学生的对自我及他人的评价能力。