投融资机制与技术创新:基于中国省级区域的实证研究

有效的投融资机制,能够促使技术创新主体开展更多更有效率的技术创新活动,从而提高技术创新能力,进而推动经济持续增长。本文在对已有的技术创新能力的研究进行归纳和总结的基础上,提出了以投资主位为核心的投融资机制概念,并依据中国31个省级区域的具体数据就投融资机制对技术创新能力的影响作用进行了实证分析。在实证分析的基础上,可以得出结论:技术创新投资主要从投资额度、投资结构和发挥作用的年限三个方面深刻影响着技术创新能力;而技术创新融资是从融资结构和对投资的匹配度两个方面影响技术创新投资并进而影响技术创新能力。只有根据中国的投融资机制特点,有针对性地制定政策,构建完善的投融资机制,才能更好地提高技术创新能力,促进经济和社会发展。     

数字图书馆个性化信息组织模式构建

个性化、以用户为中心的信息组织已成为信息资源建设的主要方向。本文提出了以用户信息组织为基础的数字图书馆个性化信息组织模式,并在该模式中重点探讨了个性化信息资源组织全过程,即信息描述和标引、以用户为中心的资源整合、个性化服务、信息反馈与更新。     

区域性科技文献资源共享服务机制探索——以上海为例

简要介绍区域性科技文献资源共享服务机制的相关理论,系统地论述了上海地区科技文献资源共享服务机制的发展状况并提出了有针对性的改进措施。     

高校图书馆面向社会服务的思考

高校图书馆面向社会服务是共享文献信息资源的必然要求,也是图书馆自身发展的需要。文章分析了高校图书馆面向社会开放服务的必要性和可能性,探讨了服务途径与相关的保障措施。参考文献4。     

The relationship between peak height velocity and physical performance in youth soccer players

Longitudinal changes in height, weight and physical performance were studied in 33 Flemish male youth soccer players from the Ghent Youth Soccer Project. The players' ages at the start of the study ranged from 10.4 to 13.7 years, with a mean age of 12.2 +/- 0.7 years. Longitudinal changes were studied over a 5 year period. Peak height velocity and peak weight velocity were determined using non-smoothed polynomials. The estimations of peak height velocity, peak weight velocity and age at peak height velocity were 9.7 +/- 1.5 cm x year-1, 8.4 +/- 3.0 kg x year-1 and 13.8 +/- 0.8 years, respectively. Peak weight velocity occurred, on average, at the same age as peak height velocity. Balance, speed of limb movement, trunk strength, upper-body muscular endurance, explosive strength, running speed and agility, cardiorespiratory endurance and anaerobic capacity showed peak development at peak height velocity. A plateau in the velocity curves was observed after peak height velocity for upper-body muscular endurance, explosive strength and running speed. Flexibility exhibited peak development during the tear after peak height velocity. Trainers and coaches should be aware of the individual characteristics of the adolescent growth spurt and the training load should also be individualized at this time.     

Identification with sport teams as a function of the search for certainty

Based on ideas from subjective uncertainty reduction theory, we examined the extent to which individuals hold similar sport team preferences to their family and friends. We also assessed the extent to which perceived sport importance and personal need for structure are influential in the development of team identification. Australian high school students aged 15.5+/-1.0 years (mean+/-s) completed questionnaires containing the Personal Need for Structure Scale, the Relational-Interdependent Self-Construal scale, a Team Identification Scale, and items assessing perceptions of sport importance and team preferences. As expected, correlations indicated that preferences for sport teams were significantly related to the preferences of family and friends. Separate analyses of variance confirmed the remaining hypotheses. More specifically, individuals who perceived that sport was important identified with the team more than individuals who perceived sport to be less important. Also, individuals high in personal need for structure scored higher in cognitive/affective team identification than those low in this need. Individuals with differing needs for structure did not differ in their scores on other dimensions of team identification. The results support the notion that cognitive/emotional attachments to sport teams are influenced by perceptions of the importance of sport and by needs for subjective structure. It is possible that other psychological motives, such as the desire for self-esteem, facilitate the development of evaluative dimensions of team identification.