Effects of gall volume on survival and fecundity of gall-making aphidsAdelges japonicus (Homoptera: Adelgidae)

Summary The number of larvae reaching maturity within the gall ofAdelges japonicus was positively related to gall volume, and the relationship between the number of mature larvae and gall volume did not change with different densities of colonized larvae. The population changes in the bud galls ofA. japonicus were surveyed by collecting the galls, which did not suffer predation or parasitism within the galls, from young artificial plantations ofPicea jezoensis over two years. In the year when the density of colonized larvae was high, they suffered a 42% mortality within the galls, whereas mortality was nearly zero in the low density year. The numbers of larvae per gall were positively correlated with gall volume. The regression lines of the number of colonized larvae on gall volume did not differ significantly in the regression coefficients between the two years, whereas the intercept was significantly higher in the year when the density of colonized larvae was higher. However, different within-gall mortality nullified this difference, and the regression lines of the number of mature larvae on gall volume had no significant difference both in the regression coefficients and the intercepts. This suggests that the number of mature larvae per gall was limited by available resources within the gall which were positively related to gall volume. In 25% of the galls in which mature larvae inhabited, the space within the galls were completely filled by the larvae, indicating that space was one of the limiting resources. Gall volume also affected the number of adults that emerged from the gall and the potential number of their progeny.     

论大学生素质教育

本文论述了素质和大学生素质教育的基本内涵和本质,并论述了当前我国大学生素质的现状以及影响和制约当前我国大学生素质教育的因素,提出了加强和改进大学生素质教育的途径和方法。     

大学语文在素质教育中的功能

科学素质与人文素质相结合,培养复合型人才是未来教育的发展趋势。大学语文课程作为文理渗透、文化与科技交融的主干课程,在拓展学生视野、改善学生思维、开启学生心智等方面是其它专业课程所无法替代的。在教师指引下,学生通过对作品思想及艺术的分析,将有助于提高他们的文化底蕴,促使其对人文科学的热爱。     

The Establishment and Application of a Labor Quality Index: The Case of Taiwan’s Manufacturing Industry

The labor quality index (LQI) not only serves as an important reference for monitoring the progress of the sustainable development of a country, but it can also serve as an important parameter for economic analysis. To compile such an index for Taiwan, we conducted two large-scale surveys of 1000 major enterprises and 844 union leaders, respectively, to determine the appropriate weights for each key factor. We also searched for all the relevant statistics that were used to calculate the weighted sum of the 25 sub-indexes, in order to compile a LQI for Taiwan’s manufacturing industries covering the period from 1990-2000. Our calculations show that this LQI rose from 80.2 in 1990 to 117.5 in 2000, which reflected an impressive 37.3% increase in just one decade. This rate of growth has, however, been slowing down since 1997. Our results indicate that the LQI provides a valuable indicator for monitoring the enhancement of labor quality in this society.     

网络环境下学科馆员素质创新与提高

新时期人类进入网络时代,信息技术革命对传统图书馆提出挑战。培养创新型图书馆馆员是适应网络环境发展的需要。图书馆馆员必须主动适应现代化的新形势,努力提高自身的创新能力。学校、图书馆必须建立建全有效机制,营造宽松的学习环境和浓厚的学习氛围,鼓励和培养馆员的创新意识、创新人格、创新能力和创新作为。     

资本结构研究的新发展:基于战略视角

从战略的角度看,企业的资本结构决策是基于公司战略、竞争战略以及企业所面临的竞争环境所作出的理性选择。把战略与资本结构连接,开辟了资本结构研究的新领域。企业的战略类型、企业管理者对风险的态度、企业所面临的竞争环境等战略因素对资本结构有着重要影响。     

专业课程教学中的美学思考

素质教育是当前教育界的一个热门话题,美育是培养高质量、高水平、高素质人才的一个重要方面。本文从教师的角度,阐述了专业课程教学中如何融入美学思想和进行美学实践,以提高学生的全面素质,增强学生的创造思维能力和激发学生的探究精神等方面的问题     

“民工荒”：产业结构升级的契机——透视“民工荒”现象

在我国农村大量剩余劳动力需要转移、城市就业形势严峻的情况下,我国东南沿海地区出现"民工荒"现象值得关注。对此问题,众多学者曾从不同角度进行了分析,但大多是就现象而论。这里则从产业结构升级与相应的人力资源素质关系分析出发,认为"民工荒"是民工素质与产业结构升级不适应的结果,其根源在于民工双重身份所衍生的诸多问题,对此背后之原因进行了深入分析,同时就"民工荒"现象带来的警示进行了揭释。     

大学数学教学改革的探索与思考

文章分析了当前大学数学课程教学中存在的一些问题,结合教学实际,对大学数学教学改革的目标定位进行了探讨,总结了我校数学教学工作在教学观念、教学方法、教学模式、教学内容及教材建设等方面的一些改革措施与效果。     

依法办报和质量立刊:高校报刊工作的两个基本点——“‘三标一体’教育质量模型与高校报刊工作”系列研究之一

"依法办报(刊)"和以"质量立(报)刊",是高等学校报刊工作必须遵循的两个基本点;忽略了其中的任何一点,高等学校的报刊工作必然就会遭受挫折。推而广之,一个企业,一所学校,一家报刊,都只有紧紧抓住"依法……"和"质量……"这两个基本点,才能在竞争激烈的当今社会,真正占有自己的一席之地———这就是重庆文理学院"三标一体"教育质量模型先进管理理念的精华之所在。