Learning through engagement: undergraduate students engaging in community-based participatory research (CBPR) in hospitality and tourism education

This paper discusses how instructors can engage their students in community-based participatory research (CBPR) projects that involve not only research on a topic but also include community stakeholders in the research process and provide opportunities for service learning. CBPR is defined, examples of effective CBPR student projects are presented, the possible benefits and drawbacks of CBPR student projects are offered, and tips for conducting successful CBPR projects with hospitality and tourism students are provided.     

积极心理学在旅游学研究中的应用

积极心理学是心理学研究的一个新思潮。它关注人类的积极品质,探索人类的美德,主张用开放的、欣赏的眼光去看待人类的潜能、动机和能力等。积极心理学不仅契合社会发展背景,而且迎合民众追求幸福的心理,因此其在学术研究和普通民众中的影响力日渐增加。在澳大利亚旅游心理学家菲利普·皮尔斯等(Philip Pearce,et al.)的引荐下,旅游学,一门致力于提升个人和社会的和谐发展与幸福指数的学科,也开始关注积极心理学的应用。文章首先阐述积极心理学的基本主张,注重条理化归纳,然后对积极心理学与旅游学的融合研究做重点述评,注重客观的应用性拓展研究介绍,最后结合国内外的研究现状和国内实情,认为积极心理学在旅游学研究中具有广泛的应用和提升空间,创新的核心是融合中国传统与当代文化,做有深度的研究。结合国内外研究现状,文章提出三个创新提升方向:关注旅游社区的居民福祉,聚焦旅游与游客个人发展、社会和谐的关系,关注日益庞大的老年旅游群体。     

传统农业时代乡村粮食安全水平估测

传统农业时代中国单位面积的粮食产量长期在世界处于领先地位,农业技术水平的提高在很大程度上降低了饥荒风险,减缓了饥荒的发生。隋唐以前粮食生产能力处于持续上涨阶段,粮食生产能力完全能够应对可能发生的饥荒,而且还可以供养更多的人口。宋元明时期粮食生产能力依然高于秦汉时期的水平。入清以后由于人口增殖过快,人口压力剧增,粮食供应空前紧张。清代中国人均粮食占有量倒退到2000多年前春秋战国时代的水平上,饥荒的频繁发生已经呈现出不可避免的恶化趋势。因此提高粮食产量水平成为20世纪中国最为关键的问题,在耕地资源基本开发殆尽的情况下,唯有采取改进农业技术提高单位面积产量的办法最为可行。战争和自然灾害是导致粮食波动的根本性因素,局部地区因此而出现粮食短缺,饥荒的发生成为可能。农民是粮食生产的主体力量,同时也是最易遭受饥荒危害的社会群体。中国传统社会农民生活水平长期处于贫困化的状态,直至20世纪中叶依然没有发生根本性变化。     

天然林保护工程绩效评价:现状、问题与研究展望

天然林保护工程实施绩效评价是优化工程宏观决策机制的基础.本文回顾了公共财政支出项目绩效评价的理论基础,天然林保护工程绩效评价研究现状、评价实践,分析天然林保护工程绩效评价研究和实践过程中存在的主要问题,提出了天然林保护工程绩效评价进一步研究的重点以及需要解决的机制问题.     

茵栀黄注射液研究进展

本文通过查阅整理近20年有关茵栀黄注射液的文献,总结了茵栀黄注射液的化学成分、药理作用、临床报道及不良反应,以期为茵栀黄注射液的二次开发提供有益借鉴。     

上市公司股权集中度影响因素实证分析

本文以上市公司数据为样本,采用主成分法、逐步回归、方差分析等多种分析方法对我国上市公司股权集中度影响因素进行了实证分析。结果表明,上市公司股权集中度的主要影响因素为持股主体、行业分布和规模,在此基础上还对我国上市公司的治理提出了建议。     

Using replication research for just-in-time purchasing construct development

Using replication research, the validity of the just-in-time purchasing (JITP) construct is established. Although empirical researchers have examined JITP over the last two decades, a consistent set of valid, reliable factors has not been used. The lack of valid construct is a barrier to hypotheses testing and meta-analyses on JITP. This study confirmed the validity of six JITP factors: top management commitment, employee relations, training, supplier quality management, transportation, and quantities delivered using two different data sets and testing the first- and second-order structure of the JITP construct. Content validity, reliability, unidimensionality, convergent validity, discriminant validity, criterion-related validity, and an invariant factorial structure of the JITP construct were empirically established.     

The private value of plant variety protection and the impact of exemption rules

Plant Breeders Rights (PBRs) are sui generis IPRs intended to promote plant variety creation. Two characteristics distinguish PBRs from patents: the research and the farmers' exemptions. This article attempts to assess the impact of these exemption rules on the private value of PBRs. For this purpose, a microeconometric model of PBRs renewals is developed and estimated. This model extends previous models of patents renewals by allowing the use of PBRs-specific variables. It is argued that simple tests on the coefficients associated with key PBRs-specific variables can provide insights into the impact of the two exemption rules. Implementation to PBRs in France over the period 1973–2011 for six major crops suggests that neither the farmers' exemption nor the research exemption have a clear-cut effect on the private value of PBRs. We conclude that there is no evidence to argue in favor of a reform of PBRs.     

山西省科研院所专利资本化现状及对策研究

通过对公开的专利数据库进行检索,分别从时间分布、有效/失效专利、资本化主体、资本化流向等角度,客观分析了山西省科研院所专利资本化现状,剖析其中存在的突出问题,从主体、客体和环境三方面提出了符合山西省实际需要的促进科研院所专利资本化的对策建议,为山西省科研院所的专利创新和资本化提供情报支撑,为政府制定相关决策提供参考。     

原油降凝剂的研究进展及发展趋势

介绍了原油降凝剂的产生、种类及在国内外的发展现状。分析和探讨原油降凝剂的主要作用机理,并对未来降凝剂的发展趋势进行预测。