直接移动环境下基于位置的发布/订阅机制研究

基于位置的应用服务是移动计算中的特色与亮点,位置相关的发布/订阅系统可以实现基于位置的特色推服务.本文研究了位置信息在发布/订阅系统设计中的关键作用,设计了一种基于位置的通用订阅/分发系统原型,并针对一种汽车导航服务给出了一个实现的框架.     

公共救助分配中的公平与效率

现代市场经济以其充分满足消费者需求的效率而备受推崇,但其运行的结果会产生收入分配不公和低收入群体的负面影响。公共救助是向低收入群体传递与分配社会资源的重要机制。本文首先从公共救助分配的公平机制入手,分析了建立政府主导型公共救助制度的必然性。然后从社会福利这一新的视角来界定公共救助的内涵,以充分体现特定的社会价值观念取向。最后探讨了我国公共救助制度的有关效率问题。     

Supporting innovation and venture development in established companies

Accumulated research findings call into question the ability of established corporations to develop and manage new ventures successfully. This article argues that the problem comes in large part from failing to differentiate between the requirements of administrative management—geared to managing existing activities and holding things in place to ensure continuation of already-developed activities—and the requirements of entrepreneurial management—designed to create change by developing something new. The two kinds of management are in tension and may interfere with each other, but every established organization needs both in order to get both innovation and efficiency.Innovations and new ventures have four particular characteristics that account for their special management requirements: uncertainty, knowledge-intensivity, competition with alternative courses of action, and boundary-crossing. Thus entrepreneurial management to support creation of the new puts a stress on such features as visionary leadership, “patient money,” planning flexibility, team continuity/stability, and interfunctional cooperation. But the usual requirements of administrative management in established corporations contradict these principles. Thus some companies try to set their new ventures apart from the old to avoid conflicts in management requirements. However, this this only partially solves the problem.All companies need both to manage ongoing activities and to create new ones—with the proportions of each depending on the nature of the business. They need to strike a balance between administrative and entrepreneurial management. The problem of venture development in established corporations occurs when administrative management comes to dominate and innovation is not valued sufficiently. The command system of administrative management needs to be replaced by a mutual adjustment system.High innovation companies build mutual adjustment into their design. They allow flexibility to move into an entrepreneurial mode. They are characterized by broader jobs: structures built around small business units or functionally complete project teams; cultures stressing the ability of people to contribute more over time; and easy access to the key “power tools” of information, support, and resources.A more entrepreneurial corporation minimizes hard-and-fast rules and procedures governed by a rigidly defined command structure and emphasizes instead flexibility and broadly-skilled sets of employees in flexible units that can be grouped or regrouped as changing circumstances require.Large corporations must institute deliberate programs to encourage innovation and entrepreneurship, including removing the roadblocks of unnecessary administrative requirements; encouraging integration across departments and functions: changing budgeting and accounting procedures and providing internal venture capital and special project funds; discretionary time; and new business performance measures.     

Get Ready for Innovation by Invasion

From many years of field research in West Germany and the United States, and especially from a recent study of relatively mature firms in Ohio, Gerhard Mensch has become aware of the disruption caused by the invasion of industries by new technologies from the outside. He sees the frequency of these invasions increasing in coming years for reasons that go beyond technological matters to the pressures for change coming from the capital markets. In this Perspective , he suggests the invasions can be countered and the capital markets satisfied by giving a more prominent role to the innovation manager in the strategy development process.     

网络环境下图书馆的个性化信息服务

本文论述了个性化信息服务是以用户为中心的主动服务，即根据用户的特定需求提供服务或通过分析用户的个性、使用习惯等主动向用户提供信息服务。同时分析国内外个性化信息服务的现状和差距以及实现个性化信息服务的途径和措施。     

Firm size,profitability, and savings in Canada

This paper explores the relationship between firm size, profitability, and corporate savings behavior in Canada. It shows that the long-run propensities to save out of profits are much the same for firms of all sizes, although foreign-owned firms generally retain more of their profits compared to domestic firms. Profitability has also been found to be largely independent of variations in firm size, although large foreign-owned firms generally earn higher profits than large domestic firms. The study also finds no evidence for the superiority of the “dividend effect” over the “retained effect”. It is suggested that the relatively high debt ratio experienced by small domestic firms might be better explained by the demand than the supply side of the markets for new equity.     

Determinants of Success in the Development of Applications Software

In this article, the third in the trio of software innovation articles, Chris Voss outlines the key factors that determine whether a new software development is likely to be successful. His research draws on an innovation framework that has emerged from previous research. His results are similar to those of the earlier studies and suggest that the software innovation process has many demands that are common to innovation in other product areas.     

Diffusion of technical change in medicine— a case study of oncology in a traditional society

This article reviews a new program established to provide modern modes of oncologic therapy to Arab cancer patients in the West Bank. The population of this region is distinguished by its fatalistic and traditional attitudes, and communication via word of mouth is prevalent. Therefore, the social system can be considered as one of traditional norms discouraging the adoption of new ideas. Demonstration effects and face-to-face communication proved effective in bringing about social change in health patterns.