烹饪原料在烹饪加工过程中水溶性维生素的保存方法研究

水溶性维生素是一类重要的食品营养成分,其含量少、稳定性差、在高温下易被破坏。因此,在烹饪过程中,要注重对水溶性维生素的保护。本文从饮食烹饪角度出发,分析日常烹饪方法对食物中水溶性维生素的破坏,并提出科学合理的烹饪方法。     

生产率增长测算的半参数估计方法:理论综述和相关探讨

半参数模型是参数和非参数回归模型的一种概括统一，其中的参数分量部分用于对确定性影响因素进行分析，而非参数分量部分则用于对随机干扰因素的刻画。Olley和Pakes最早给出了关于生产率增长测算的半参数估计方法的研究，Ackerberg和Caves对这一研究进行了修正和补充。但由于理论发展方面还不够成熟，限制了方法的实证应用。半参数方法对经济现实的描述更接近真实，随着半参数估计理论的日渐成熟，半参数估计方法在生产率增长测算领域必将发挥越来越大的作用。     

北京建设世界城市战略定位与发展模式研究

新的世界政治经济形势下,北京提出建设世界城市的战略目标,对北京的城市发展与中国的和平崛起具有重要的现实意义与历史意义.本研究针对北京建设世界城市这一主题展开研究,从世界城市的特色研究入手,分析了纽约、伦敦、东京发展层面上的各自特征,并通过发展指标将北京与现有世界城市进行比较研究,认为当前北京与世界城市的标准尚有差距,但...     

城市密集建设区绿色空间网络的规划布局探索——以重庆市主城区为例

本文是从城市规划的角度,来研究城市密集建设区内的绿色空间网络规划所涉及的相关理论基础和实践中的规划布局要点.在理论上认为连接性、服务覆盖面和多功能复合性是规划布局的要素,并认为景观生态学的景观安全格局和网络效应原理可以用来指导规划布局.在重庆市主城区的实践探索中,提出了体现“梳理——评价——辨析——成果”思路的工作程序...     

产学研协同创新成本分摊机制研究

产学研协同创新是推动技术创新的一条重要路径,但创新成本分摊机制是影响产学研协同合作的一个重要问题。通过构建充分竞争市场下的多阶段博弈模型,从成本分摊机制角度探究了如何有效推进产学研协同创新。通过模型扩展与求解,获得成本分摊后的帕累托改善以及产学研协同创新的可行路径。结果表明：企业和学研方基于自身收益最大化而进行的成本分摊协商无法实现帕累托最优,而轮流出价博弈模型下的成本分摊形成机制能够有效改善各方收益,并使整体收益达到帕累托最优,因此是一条现实可行的帕累托改善路径,其中,各方获得的收益增量与耐心程度的对比有关。     

高校非会计专业会计学课程教学改革和方法研究

经济快速发展,使许多经济管理、金融和贸易等与经济相关的非会计专业越来越认识到会计学知识在培养高素质管理人才中的重要性,许多非会计专业都开设了会计学课程。但是,在教学过程中存在着一些问题。信息技术的发展对传统的会计学课程教学提出了新的挑战。如何适应信息化的浪潮,对会计学课程教学进行改革,成为高校目前亟待解决的一个课题,文章结合教学实践,分析了产生问题的原因并提出了相关的对策。     

Research engagement,impact and sustainable tourism

In this editorial, we reflect on how the Journal of Sustainable Tourism can contribute towards sustainable tourism researchers achieving more impact with their research. We propose some changes that can be tested in, and introduced gradually and collaboratively with, the community of the editorial board and authors. To support impactful mind sets, we will promote research that reflects diverse academic communities. To promote impactful research topics, we will encourage authors to frame their submitted articles against the Sustainable Development Goals, while research that is time sensitive will be fast tracked so it can contribute to current debates. To promote impactful methodologies, we shall favour articles that use mixed methods and action research, and those that conduct longitudinal, experimental, and evaluative research. To promote impactful partnerships, we will favour multidisciplinary approaches and research that has been co-created with stakeholders. To promote impactful communication and dissemination, we will continue to build an online community on social media for sustainable tourism researchers, we will promote articles in social media to raise their visibility, and we will provide free access to those articles that are deemed to have the greatest potential to impact positively on society.     

"反规划"理论在城市总体规划中的应用--以沅江市城市总体规划为例

反规划理论是相对于传统规划理论而言的一种新的规划理论,它强调规划应先从控制城市生态基础设施入手.文章介绍了反规划理论是如何在沅江市城市总体规划的实践中加以应用的.     

Rethinking social impacts of tourism research: A new research agenda

Understanding the social impacts of tourism on communities is extremely important for government at all levels so that action can be taken to reduce the likelihood of a community backlash against tourists and tourism development. Given that the residents of many tourism destinations are a fundamental part of the tourism ‘product’, resident attitudes and behaviour have a sizable impact on the success or otherwise of a destination. Research on the social impacts of tourism on communities is substantial and ongoing and while advances have been made in the area, the research has not addressed some of the deep seated issues faced by tourist destinations. This paper provides a critique of the social impact of tourism literature, highlighting the inadequacies in the research that has been conducted to date, which then leads to the development of a new conceptual framework. The paper traces the key developments in social impact research and argues that the predominance of quantitative methods potentially limits our ability to gain a more in-depth understanding of the impacts and how they influence both the host community and tourists. The paper finds that the quantitative focus from previous social impact research has led to a narrow understanding of the issues surrounding social impacts and proposes a new research agenda based on ‘layers’ of social impact understanding through the use of ethnography or phenomenology. The paper concludes with recommendations to progress social impact research beyond simply describing the issues towards explanations of why they occur by suggesting that social impact research examine, in greater depth, the values and intrinsic characteristics of the host residents.     

Application of appreciative inquiry in tourism research in rural communities

Appreciative inquiry is a participatory research method based on positive psychology. Founded upon grounded theory and the social constructivist paradigm, appreciative inquiry is a simple, effective, and epistemologically sound tool to understand the rural population’s knowledge, needs, and priorities without alienating them from research. Based on the study conducted to comprehend the interrelationships among conservation, livelihood, and tourism development in three rural communities located in the vicinity of Chitwan National Park, Nepal, this study argues that appreciative inquiry can be a useful tool for conducting tourism research in rural communities. This study employs five steps, including grounding, discovery, dream, design, and destiny.