美国的科学政策

《美国的科学政策——1939到现在》一书(修订版),1972年由美国麻省理工学院出版,编者是四位历史学家.全书共分六个部分:一、导言:历史的概述,二、准备和战争,三、战后科学的规划(1945-1950),四、本世纪中叶(1950-1957),五、反应的年代(1957-1965),六、衰退中的体系(1965-1970).编者依据大量材料(其中包括许多美国官方文件),对美国自1939到1970年的科学体制和政策作了历史的论述.对我们研究美国的科学政策和体制的演变有一定参考价值.下面是本书主要内容的简要介绍.     

基于标准过程的供应链管理模型的研究

企业业务过程是通过一系列功能和任务的实施来完成的。功能和任务可以用抽象的标准过程陀螺模型和标准过程链模型加以描述。本文论述了标准过程陀螺模型的定义及意义,建立了基于标准过程的标准过程链模型和供应链管理模型。指出e-Commerce构架了供应链环节间的相互联系。     

多样化的现代性:全球化时代中的基督教、伊斯兰教和印度教

20世纪晚期 ,作为跨地域文化系统的世界宗教发生了影响深远的变化。本文旨在考察基督教、伊斯兰教和印度教三大宗教最近之变迁的政治性和意义。文章重点讨论那些重构宗教意义和权威的诸多力量的本质、推动归信和标准化的过程以及这些宗教重构对我们理解后期现代性本身的启发。本文认为 ,尽管现代性是多样化的 ,每个传统也都是独特的 ,但由于大众社会的全球化和晚期现代性的多元主义的缘故 ,所有这些宗教都面临着一个相似的困境     

警惕西方敌对势力利用“法轮功”的政治图谋

西方某些反华势力,错误地估计形势,以为李洪志及其邪教“法轮功”是一个可以廉价利用的、能够用来推翻中国共产党的领导、改变中国社会主义政治制度的工具。对这种险恶政治图谋,我们必须保持高度警惕,予以彻底揭露。     

"Good looks don’t boil the pot": Irish-Newfoundland women as fish(-producing) wives

This article explores the historical understanding of maritime womanhood in Newfoundland by examining women in fishing families along the southern Avalon Peninsula from the late eighteenth to the early twentieth centuries. It does not talk about fishwives in any popular sense of the word, for these women did not market fish; rather, they produced salt fish for market. And while middle-class observers may have perceived them as coarse and bold, within their own families and fishing communities they were seen as essential partners who contributed equally to family economies. Within a sexual division of labor that assigned vital and complementary tasks to both men and women, Newfoundland fish(-producing) wives carried out hard physical labor at public sites of production. This contributed significantly to the construction of “woman” as essential worker, which in turn had broader repercussions for their status and authority within fishing communities. The participation of fish(-producing) wives changed significantly from the 1950s onward, as the fishery moved from household production to a modernized, and discursively masculinized, industry. Yet the iconic image of the fish(-producing) wife in traditional household production remains undisrupted in the early twenty-first century.     

Innovation in user-centered skills and performance improvement for sustainable complex service systems

In order to leverage individual and organizational learning and to remain competitive in current turbulent markets it is important for employees, managers, planners and leaders to perform at high levels over time. Employee competence and skills are extremely important matters in view of the general shortage of talent and the mobility of employees with talent. Two factors emerged to have the greatest impact on the competitiveness of complex service systems: improving managerial and employee's knowledge attainment for skills, and improving the training and development of the workforce. This paper introduces the knowledge-based user-centered service design approach for sustainable skill and performance improvement in education, design and modeling of the next generation of complex service systems. The rest of the paper cover topics in human factors and sustainable business process modeling for the service industry, and illustrates the user-centered service system development cycle with the integration of systems engineering concepts in service systems. A roadmap for designing service systems of the future is discussed. The framework introduced in this paper is based on key user-centered design principles and systems engineering applications to support service competitiveness.     

Impact of lightweight and conventional jackhammers on the operator

Jackhammer manufacturers have recently developed lightweight (45-60 lbs) jackhammers intended to reduce the required lifting and pushing forces during operation. However, the vibration characteristics of the lightweight jackhammers and their effect on muscle activity are currently unknown. The objective of this study was to compare the measured vibration and muscle activity between: (i) conventional (90 lb) and light weight (60 lb) jackhammers, (ii) different pavement type/thickness combinations, and (iii) pneumatic and hydraulic jackhammers. Five jackhammers were tested on 4 and 6 inch thick asphalt and concrete pavements by four experienced operators. Analysis of the results revealed that both weight classes averaged 9.7 m/s(2) at the 20 Hz weighted 1/3 octave band frequency, and the TLV of daily exposure for either weight class of jackhammer was less than 1.5 hours/per day. There was an approximately 33% difference in vibration measured on the hand of the operators due to pavement thickness, 30% due pavement type, and no difference due to power source. Conventional jackhammers overall produced higher muscle activity than lightweight jackhammers. Although selection of the correct jackhammer for the job involves many factors including pavement type and thickness, the results of this research can be used to assist in selecting the appropriate jackhammer.     

How do people differentiate between jobs: and how do they define a good job?

Employed individuals from a range of jobs (n=18) were interviewed using a repertory grid technique, to explore the criteria they used to distinguish between different jobs. The concepts of 'a good job' and 'a job good for health' were also discussed. Interactions with others and the job itself were the most commonly used criteria and were also the most common features of a 'good job'. Pay and security were mentioned frequently but were less important when comparing jobs and when defining a 'good job'. Physical activity was rarely associated by interviewees with a 'good job' but was frequently associated with a 'job good for health'. A comprehensive definition of a 'good job' needs to take all these factors into account.