Investigating the interaction and mutual dependence between science and technology     

Catari Vilela Chaves  Sueli Moro 《Research Policy》2007,36(8):1204-1220

Literature on the economics of science and technology (S&T) suggests not only that technological innovation demands the expansion of the institutional borders between universities, research institutes, industrial companies and the financial system, but also that science leads as well as follows technology. Medical innovation in particular is very dependent on scientific research, which represents a source of information that impels the productive sector. The latter introduces a series of questions that motivate the researchers in their attempt to understand how the human body reacts to certain products and therapies. This paper analyses the pattern of S&T interaction for both the national system of innovation (NSI) and the health innovation system. The panel data and simultaneous equations models analyze the interaction between S&T. The theory about the existence of a mutual dependence between them has been confirmed, which means that science moves technology and technology also influences scientific development. The estimated models, which use data from scientific papers and patents as proxies of science and technology, represent just the tip of the iceberg called NSI, known as a multifaceted and complex institutional arrangement.  相似文献   

A utility model for teaching load decisions in academic departments     

William F. Massy  Robert Zemsky 《Economics of Education Review》1997,16(4):349-365

The authors model the class size and teaching load decisions of academic departments in terms of a departmental utility function. Utility is postulated to be asymmetric around class size and teaching load norms, and variables for curricular structure, disciplinary domain, and institutional type are taken into account. Maximization of the utility function produces decision rules for the number of sections to be offered for each course, and hence the faculty's overall teaching load. A nonlinear estimator is developed for the decision rules' parameters and applied to data from four liberal arts colleges and two research universities. Results are consistent with theories about faculty discretionary time and with expectations about the effects of curricular structure on class size. The paper concludes with a discussion about the effects of enrollment uncertainty on faculty load decisions.  相似文献   

伊丽莎白政府的外交政策与苏格兰问题的成功解决     

夏继果 《首都师范大学学报(社会科学版)》1997,(6)

本文论述了伊丽莎白政府1559—1560年在苏格兰问题上采取的循序渐进的干涉政策:适中的承诺,金钱和武器援助,公开武装干涉.在此基础上分析了英格兰取胜的根本原因:外交战略的调整;独立自主的外交政策;伊丽莎白女王与威廉·塞西尔相得益彰的合作.试图说明:苏格兰问题的解决使不列颠岛日益成为一个防御整体,在此基础上英格兰走出了一条全新的外交路线.  相似文献   

新型数控I2C总线彩电特有故障检修的要点     

曾光杰 《重庆职业技术学院学报》2005,14(2):126-127,130

目前市售的新型数控彩电都采用I^2C总线控制技术。使电视机的电路结构发生了较大的变化，从而新型数控彩电的故障现象、故障原因、故障处理方法都与传统彩电有很大的不同。本文主要从新型数控I^2C总线彩电的结构出发，结合本人的实践教学工作经验，介绍了检修新型数控I^2C总线彩电故障过程中对I^2C总线彩电特有故障处理时应注意的要点。  相似文献   

沿海地区设计潮位计算方法探讨   总被引：1，自引：0，他引：1  

孔乐  陈娥 《泰州职业技术学院学报》2005,5(3):36-38

采用P-Ⅲ型分布及极值Ⅰ型分布,研究了沿海地区设计潮位计算方法.阐述了资料的一致性检验的方法.结合坎门站潮位资料,对比了两种方法的计算效果.结果表明,两种方法对不同重现期设计值的估计结果相当,但P-Ⅲ型分布计算时参数的选取与习惯用法不符,因此,建议采用极值Ⅰ型分布进行设计潮位计算.  相似文献   

从《我与地坛》看史铁生对生命的沉思     

温江斌 《江西教育学院学报》2007,28(2):89-92

史铁生是当代文坛最具有哲学思想的作家之一。《我与地坛》是作家历经磨难和困苦之后的心血之作,积融了他十五年来对生命爱和忧的沉思与断想。史铁生在《我与地坛》中不断地探寻生命的价值和意义,不仅看到生命中难以承受苦难的普遍性,也敢于在苦难中不吝前行,更把自己融入到生命整体的永恒流变中。从理解苦难到勇于生存,从敢于生存到懂得生活,一种宏阔而恒远的境界由此洋溢在个体周围,最终成就了作家内心无限的希冀与不舍的探寻。  相似文献   

^125I在鹌鹑Coturnix coturnix中的吸收动态及其分布     

李斯明  钟创光 《中山大学学报论丛》2001,21(3):19-21

利用同位素示踪法研究了125I(NaI)在鹌鹑Coturnix coturnix中的吸收动态及其分布.鹌鹑对经口喂的125I的吸收过程可以分为快清除期和平台期,0～1 d为快清除期,在这期间,鹌鹑快速的排出进入体内的125I.1～7 d为平台期,鹌鹑体内的125I维持在一个相对恒定的平台,此时体内的放射性活度占起始活度的10%～15%,表明鹌鹑能利用部分进入体内的碘.进入体内的125I主要分布于甲状腺中,5 h时125I在甲状腺中的比活度高达6180 060Bq·g-1,约占体内总量的75%～80%.  相似文献   

工字钢辊式矫直时腹板作用的有限元仿真分析     

刘炳新  李秋彬  姚海英  刘刚 《唐山学院学报》2004,17(4):92-94

工字钢辊式矫直是通过对腹板施以可调辊压使翼缘产生一定的塑性变形来实现的。理论分析认为求解各可调辊的压下挠度时,可以不考虑腹板的影响而按翼缘组成的"矩形"断面来进行。通过建立适当的有限元模型,运用ANSYS软件仿真了考虑腹板和不考虑腹板的情况,从而验证了理论结果的正确性。  相似文献   

Teacher salaries in Latin America: A review     

George Psacharopoulos  Jorge Valenzuela  Mary Arends 《Economics of Education Review》1996,15(4):401-406

In this paper we use data from household surveys of 12 Latin American countries to assess how teacher salaries compare to workers in other occupations. The results show great variability from one country to another, ranging from an apparent underpayment of teachers in Bolivia by 35% relative to the control group, and a respective overpayment of 65% in Colombia. However, when statistical controls are introduced for the differential education, hours worked and gender composition between teachers and the comparison group, much of the earnings differential between the two groups disappears. On the basis of this finding, we cannot support the position that teachers are either overpaid or underpaid.  相似文献   

桌面PC数据传输瓶颈分析     

谢建民 《宁波广播电视大学学报》2003,1(1):71-73

桌面PC数据传输瓶颈，是造成处理器速度不能发挥，计算机整体性能提高与处理器主频提升不同步等现象的重要原因之一。本文从硬件层面出发，对目前桌面PC中存在的处理器总线与内存总线的数据传输瓶颈、I／O扩展总线的数据传输瓶颈和硬盘的数据传输瓶颈进行分析，并提出现实的处理方法。  相似文献