我国铜市场形势分析与发展前景预测

90年代,与世界铜矿资源总量相比,我国铜资源是比较贫乏和短缺的,这种状况将延续到下一个世纪。本文对我国近五年的铜金属市场进行了跟踪分析,对进出口进行了统计和形势分析,并对铜产品的市场价格和产量进行预测,提出了研究对策和建议。     

学校职业指导的现状与展望

职业指导是现代学校教育的一个重要组成部分。特别是当前我国正处在由计划经济向市场经济转型的关键时期,就业结构和就业方式发生了巨大的变化,大中专学校和职业技术院校毕业生面临着巨大的就业压力。这无疑对学校职业指导工作产生了更紧迫的要求,提出了更严峻的挑战。本文分别从政策法规和教学研究方面对我国学校职业指导的现状和未来发展进行了探析。     

"十一五"期间农村整体改革展望——以安徽为例

近年来，中央和各地针对农村出台了一系列的改革举措和惠农政策，对农民增收和农村发展起到了一定的促进作用。但要从根本上解决“三农”问题，还有赖于推进农村全面改革，统筹城乡经济社会发展。本文以农业大省安徽为例，总结前期农村改革的实践经验，撂求下一步农村改革之路。     

胶原蛋白在食品中的应用现状及其发展前景分析

由于具有独特的生物功能和理化性质,胶原蛋白拥有着较强的保健功能和较高的营养价值。所以近年来,越来越多的学者开始研究胶原蛋白的保健功能,并且对食品中应用的胶原蛋白的制备问题展开了研究。     

African Agricultural Development: Lessons and Challenges

This paper reviews what has been learned from experiences of African agriculture and hence what policy lessons may be. Views of African agriculture over the last 130 years have changed from optimism to pessimism and at least halfway back again as the performance of the sector has fluctuated. Fortunately it seems the deep pessimism about agricultural prospects expressed in the 1980s and 1990s has receded. The performance of African agriculture since 1990 suggests that neither those who doubt that any significant advances are taking place, nor those who see advances in some remarkable but perhaps isolated cases of rapid transformation of farming and agricultural supply chains, have sufficient evidence – either from national data or small‐scale studies – to support their positions. Hence policy has to rely largely on general principles and historic lessons, rather than more clearly proven propositions. Policy debates over African agricultural development may sharply divide on some topics, but there is little debate over the importance of basic conditions for agricultural development of an enabling investment climate and the provision of rural public goods. Beyond these basics, the challenge is to remedy the failings of markets that deny most smallholders access to inputs, financial services and insurance. Here opinion divides between whether to return to public provision, as with fertiliser subsidies, or whether private and collective institutional innovations will be sufficient. Recent initiatives to test and scale up the latter look promising, but most have yet to be evaluated. If agricultural development is first and foremost about establishing the basic conditions for growth, then most countries in Africa may be better placed than they have been in the past. Given the many examples that show African smallholders investing and innovating when they have the chance, then there are reasons to hope that the modest growth of production and productivity seen in the last two decades may accelerate in the future – thereby allowing African countries to make the transition from agrarian to urban economies.     

跨国公司撤资研究的述评与展望

随着跨国公司不断地在全球范围内进行直接投资和调整布局,由此引发的撤资行为逐渐受到一定的关注。尽管现有研究成果十分丰富,但作为国际商务活动的跨国公司撤资行为仍然没有得到应有重视和充分解释。本文从跨国公司撤资的含义与类型、动机与原因、影响与对策等方面对国内外现有研究进行梳理,评述了相关研究的进展与不足,并提出未来应该从微观层面对撤资行为进行多学科交叉研究,构建完整的跨国公司撤资理论体系。     

Reelection,growth and public debt

In this work we examine how economic growth affects public debt when interacted with reelection prospects. Reelection considerations shorten political time horizons and give rise to political myopia that exacerbates debt accumulation. That laxer institutional reelection restrictions (e.g., no term limits) mitigate this effect due to electoral accountability is well known. Incorporating growth, we find that this mitigation can be reversed because less myopic, and more accountable, incumbents put more emphasis on smoothing the effects of growth across generations. We test these predictions using an annual-based panel of U.S. states over the period 1963–2010. Our identification strategy rests on constitutionally-entrenched differences in gubernatorial term limits that provide plausibly exogenous variation in reelection prospects, and aggregate national TFP shocks that are exogenous to individual states. Our estimates indicate that when reelection is possible a one standard deviation positive income shock induces, within the same year, a relative increase of approximately $40 in real per capita public debt.     

数控机床在大学生实践教学中的应用及存在的问题

随着科技和数控技术的不断发展,我们对数控人才的要求和考核标准也在不断的上升,目前的数控人才培养还存在着很多的问题。本文就目前高校在进行数控维修教学和实训中存在的主要问题做了系统的研究和分析,并着重阐述了虚拟数控机床在数控维修不同教学模块中的作用。     

区域生态风险管理研究热点展望

区域生态风险研究兴起于20世纪80年代,对科学引文索引数据库生态风险研究相关的2 347篇文献进行分析,从文献类型、出版年份、所属国家或地区、学科类别、发表作者和研究热点进行分析,简要描述国内的研究现状,基于国内外的相关研究,提出区域生态风险管理的研究展望。     

会计准则国际趋同问题研究:回顾与展望

文章系统回顾了国内外关于会计准则国际趋同的概念、路径、策略及其影响的研究成果,明确了相关研究对于评价我国会计准则国际趋同路径与策略选择的参考价值,指出我国会计准则国际趋同问题进一步研究的重点方向与研究的理论和现实意义。