城市旅游住宅地产发展研究

随着旅游业与房地产业的进一步深化结合,旅游住宅地产经营模式正在被众多企业广泛采用,成为城市房地产开发的主流之一.本文结合旅游住宅地产开发经营的实际,对其发展类型、经营特点、潜在的机遇与风险进行了系统的分析,阐述了这一经营模式的应用前景和发展趋势,以期对城市旅游住宅地产的实际经营进行有益的探讨.     

Land use externalities, open space preservation, and urban sprawl

Parcel data on residential land conversion are used to investigate how land use externalities influence the rate of development and modify policies designed to manage urban growth and preserve open space. Several “smart growth” policies are found to significantly influence land conversion, including a development clustering policy that concentrates development and generates preserved open space. In addition to directly affecting a parcel's hazard rate of conversion, this policy is found to affect neighboring parcels' conversion by generating a positive open space externality that hastens their development. The implication that the clustering policy could generate a more sprawled pattern of development is explored using spatial simulation.     

Preventing HIV in injection drug users: exploring the tradeoffs between interventions

Injection drug users (IDUs) transmit the human immunodeficiency virus (HIV) via both needle sharing and sex. Available interventions for this population have varying costs and effectiveness and focus on different risk behaviors. In this analysis, we look at two interventions. One is inexpensive, broad-based and provides modest risk reductions (street outreach (SO)); the other is narrowly focused, expensive and relatively effective (methadone maintenance). This analysis explores the effects of population risk behavior, intervention effectiveness, intervention costs, and decision constraints when allocating funds between these two interventions to maximize effectiveness. We develop a model of the spread of HIV, dividing IDUs into susceptibles (uninfected) and infectives, and separately portraying sex and injection risk. We simulate the epidemic in New York City for time periods from the mid-1980s to the early 1990s, and incorporate the behavioral effects of two interventions performed singly or in combination to find the allocation that maximizes the number of infections averted in the IDUs and their noninjecting sex partners, assuming interventions have increasing marginal costs. We find that the optimal allocation nearly always involves spending the maximum allowable amount on SO. This result is largely insensitive to variations in risk parameters, intervention efficacy, or cost. The model's structure, however, makes clear that many factors contribute to this insensitivity, namely the scope of the interventions, the dual drug/sex nature of HIV risk in the population, the asymmetry of sexual risk for men and women, and the potential benefits to nonIDUs.     

知识经济的本质特征及对我国发展机遇的思考

本文在解析知识经济本质特征的基础上,分析了知识经济对我国发展带来的机遇和挑战,提出我国实施知识发展战略,应对知识经济挑战的必要性和具体途径,最后从增强吸收知识、获取知识、交流知识能力三方面提出了相关的政策建议。     

VE在油田开发中的应用

孤岛采油厂历经30多年的开发,已处于特高含水期产量递减阶段。由于新井产量受到自然资源和投资的限制是有限的,要减缓原油产量的递减,依靠的是大量增产措施的投入,而每项措施的实施需要耗费几万元到几十万元的费用。所以,引起开发后期油田成本上升的主要原因是油田增产措施难度加大,投入相应增加。为此,我们引入VE原理,科学实施增产措施工作量,达到了降低作业成本,提高增油效果的目的。     

质量生态学研究(5)--生态质量管理系统评价

利用生态学思想及可持续发展理念，建立生态质量管理评价的思路和评价原则，根据构成生态质量管理系统的经济、环境、社会三个方面，建立相应的评价指标体系，综合反映生态质量管理水平。     

Gender differences within early stage and established small enterprises: An exploratory study

This paper examines 2 years of data from GEM Canada in order to develop new insights into the factors that contribute to the performance outcomes of female enterprises and how these factors are affected by the firm’s stage of development. The analysis encompasses both personal and organizational characteristics and assesses their association with selected performance measures at the early stage as well as at the established phase of development. The findings indicate that the greater propensity of men to pursue business growth and earnings can be attributed to marital status (live with a partner) and the expected depth of the ownership team. Moreover, the performance outcomes for male entrepreneurs are influenced by a relatively wide range of variables, with business demographics being more prominent than for the female enterprises. For both genders, the mix of relevant underlying factors varies as the venture progresses along the ‘nascent-new-established’ continuum.     

广西北部湾经济区发展战略探析

分析了广西北部湾经济区的发展现状,创造性地提出其发展要因,最后,基于发展要因提出经济区发展战略,以供决策参考。     

城市交通与城市空间结构演变

通过回顾城市交通和城市空间结构的发展演变过程,研究通过城市交通引导城市空间结构健康"生长"的有效途径,提出通过公共交通引导城市发展的TOD模式,以及适合中国特色的和谐城市形态和城市交通.     

基于绿色逆向物流的可持续发展战略研究

绿色逆向物流管理的主要目的是充分节约和利用资源与能源。保护生态环境．提高经济效益，最终实现可持续发展的战略方针。本文按照可持续发展理论，重点通过对废弃物最小化管理、对逆向物流管理、逆向物流绿色化和逆向物流信息化几个方面的分析，阐述其对可持续发展的战略意义。