优化河南投资环境途径探析

投资超常增长是促使经济快速发展的重要因素，河南投资环境基础比较好，应该扬长避短进一步优化，其具体途径可以从投资的国际经济环境、投资的国内经济环境、投资的区域经济环境入手。     

北京市中学生关于SARS的认识与反应的跟踪调查研究

2 0 0 3年 5月和 2 0 0 4年 1月 ,通过问卷跟踪调查方式对海淀区某居民小区的中学生有关SARS的认识和反应进行了研究 ,内容涉及中学生对SARS的了解程度及了解方式、关于预防SARS的知识和相应的行为变化等。中学生对SARS有一定的认识和了解 ;各大媒体在SARS期间对于宣传公共卫生知识起到了重要的作用 ;中学生群体目前对SARS仍旧有一定的恐惧心理 ;中学生注重卫生的程度因为SARS的远去而有所降低。加强公众对于流行疾病的基本认识 ,进一步改善其卫生习惯 ,仍然是我们需要面对的问题。     

iTV: A major opportunity for financial services,or not?

Interactive television has arrived, thanks to substantial technology investments that have been made by Sky and others. It is growing in importance as innovative interactive applications are developed for broadcast programmes (eg the BBCi service and Big Brother), and for advertising — and will develop further when broadband deployment gets to critical mass. Readers should not expect a television-variant of the world wide web, however. This was tried during 2000–2002 in the form of web look-alike, interactive ‘walled garden’ sites, and failed to attract critical mass footfall. The model has evolved and now revolves around interactive content synchronised with broadcast, which offers financial services companies an interesting new way to increase awareness and to differentiate the service presentation. Furthermore, over the next ten years, broadband is expected to usher in a new era of personalised television — in which specialised broadcasts (such as personal pensions advice programmes) can be made available on demand. The observations in this paper are mainly drawn from the UK, where digital television penetration is high; the lessons can be applied more broadly, however, and are relevant to any organisation thinking of promoting its service through entertainment channels.     

Foreign debt and economic growth

This paper empirically examines the relationship between government foreign debt and the growth rate of per capita GDP based on a total sample of 77 countries, as well as sub‐samples of various regions. Cross‐sectional estimates of the coefficient of foreign debt based on the total sample have a negative sign, but are not always statistically significant. Available data from African countries indicate that foreign debt and the growth rate of per capita GDP were negatively related at a high level of significance. For industrialized and Latin American sub‐samples, this relationship is negative but statistically insignificant. The sub‐sample Asian and other developing countries show a positive but insignificant relationship. JEL classification: F34, H6, O23.     

用作图法确定光在单轴晶体中传播的方向

用作图法直观确定常见几种情况下入射光在单轴晶体双折射现象中o、e光传播方向,解决折射定律无法解决的问题     

Global economy gathering strength

Encouraged by a highly expansionary economic policy, the global economy is enjoying a rapid upturn. Utilisation of capacity is high in many sectors, particularly in the growth centres of the USA and East Asia, where China leads the field. With inflationary risks on the increase, most countries are now shifting the focus of economic policy. Fiscal policy in particular can be expected to provide little in the way of further stimulus. In addition, there has been a turnaround in interest rates in many countries. Yet how quickly can the monetary reins be tightened without jeopardising growth or endangering price stability?