Towards a maturity model for big data analytics in airline network planning

The evaluation, acquisition and use of newly available big data sources has become a major strategic and organizational challenge for airline network planners. We address this challenge by developing a maturity model for big data readiness for airline network planning. The development of the maturity model is grounded in literature, expert interviews and case study research involving nine airlines. Four airline business models are represented, namely full-service carriers, low-cost airlines, scheduled charter airlines and cargo airlines. The maturity model has been well received with seven change requests in the model development phase. The revised version has been evaluated as exhaustive and useful by airline network planners. The self-assessment of airlines revealed low to medium maturity for most domains. Organizational factors show the lowest average maturity, IT architecture the highest. Full-service carriers seem to be more mature than airlines with different business models.     

林业产业结构影响因素的实证分析——基于多元线性回归模型

以多元线性回归模型为载体,使用Stata计量软件对我国2000年以来林业方面的各项经济数据进行统计分析,并指出自然要素禀赋、宏观经济发展情况、微观生产要素、政府政策与环境方面影响我国林业产业结构层次的要素。研究结果表明:森林蓄积量、城镇化水平与林业产业结构的优化度呈相同变化趋势,林业制度改革具有推动林业产业结构积极转型的作用,同时居民消费水平对林业产业结构具有显著影响。并从自然资源禀赋等四个方面提出了建议。     

Bringing the past to life: Co-creating tourism experiences in historic house tourist attractions

This ethnographic study concentrates on the co-creation of experiential value between the tourist and tour guide in a single historic tourism site; Huntingdon Castle, Ireland. Built upon the principles of service dominant logic, the research explores how storytelling acts as an engagement platform and value enhancing strategic resource. In doing so, it impels the value co-creation journey and shapes the tourist's experience. Observation is coupled with qualitative interviews to capture the dual perspective of both guides and tourists. Findings exhibit the co-creation process through the performance of stories; how and when people derive pleasure (value); the influencing aspects of the environment or place; and guide/tourist perspectives on how they feel and think during the experience. The research contributes by taking a practical operational view of how co-creation occurs. It goes beyond the guide's perspective and exhibits the importance of co-creation of lived experience in the story enhanced tourism experience framework.     

Operational risk and its impact on North American and British banks

This study examines the financial impact of operational risk and its loss announcements on the value of publicly traded banks in United States, UK and Canada. There are three main findings: (1) on average, the market reacts more negatively to a loss’s initial announcement than its settlement news; (2) operational loss events cause strong reputational damage to the announcing banks and (3) the market is particularly sensitive to the announcement of losses caused by internal fraud, of a large magnitude, resulted in the order of restitution, and that are the rulings of a regulatory investigation.     

二甲双胍的抗衰老效果与饮食密切相关

本文从二甲双胍已知的降血糖功效引入,解读分析多篇文章,了解二甲双胍的作用机理以及饮食因素对药效的调节作用,得到了营养物质影响二甲双胍药效的结论,摄取糖类对二甲双胍的吸收有间接影响,并进一步分析抗衰老药物问世的可能性.     

Evolution of network relations,enterprise learning,and cluster innovation networks: the case of the Yuyao plastics industry cluster

Industrial clusters have become a crucial carrier of economic globalisation. However, constrained by the nation’s industrial development model, clusters in China have long been relegated to a low-end position. This study, based on the perspective of focal enterprises, analysed the relationships among network relations, enterprise learning, and the evolution of cluster innovation networks and explored the three formation stages of a cluster innovation network by examining the example of the Yuyao plastics industry cluster. The results showed (1) that focal enterprises exert spin-off effects on enterprise learning and are critical for innovation networking and (2) that weak network ties facilitate exploratory learning, whereas strong ties influence exploitative learning. In addition, tie strength showed a coevolutionary feature. Furthermore, the results showed that (3) this evolutionary process demonstrated a phase-changing characteristic, with government policy exhibiting substantial effects on focal enterprises, organisational learning mechanisms, and cluster innovation networks.     

Evolving Purchasing and Supply Organizations: A contingency model for structural alternatives

Purchasing and Supply Management (PSM) is under significant pressure to find levers to further increase its contribution to corporate goals. In order to improve performance in line with expectations, Purchasing and Supply Organizations (PSOs) have to evolve continuously. To help address this challenge, a comprehensive contingency framework of PSO structures is presented. The framework is based on existing literature on PSO contingency factors as well as analysis of two case companies. The findings highlight the importance of taking a contingency perspective for understanding the PSO and combining a detailed view of macro-level structural dimensions with micro-level characteristics. These macro-level dimensions comprise category, business unit, geography and activity. The micro-level characteristics comprise centralization, formalization, specialization, participation and standardization. From a theoretical perspective, the contingency framework opens up insights that can be leveraged in future studies in the fields of hybrid PSOs, global sourcing organizations, and International Purchasing Offices (IPOs). From a practical standpoint, an assessment of external and internal contingencies and their relation to specific structural dimensions and characteristics provides the opportunity for more consciously evolving the PSO to continue to improve PSM's contribution.     

多学科视角下的恢复性自然环境研究 综述

恢复性环境指对人身心健康具有恢复或促进作用 的环境，非威胁性的自然环境通常被认为是典型的恢复性环 境。因此，以“恢复性自然环境”为议题，对近40年的研究 成果，从学科背景、研究层次、研究方法、研究结论等方面 进行综合分析，归纳整理出6种重要的研究视角，即遗传进化 视角、心理机制视角、公共卫生视角、辅助治疗视角、规划 设计视角和文化溯源视角，并对每一种视角的研究思路和重 要成果进行了概述。研究的目的在于为多学科的互相借鉴与 融合提供基础，继而实现恢复性自然环境研究在理论与实践 上的连续统一。     

期望失验视角的实习满意度比较研究——基于酒店、高校、学生的访谈

面对酒店行业用工短缺与酒店管理专业毕业生行业退出的困境,文章探讨酒店实习对毕业生择业意愿的影响。以期望失验理论为基础,通过对酒店经理、实习指导老师和实习生的深度访谈,对比三者的实习期望、实习感知与实习满意度及其差异。结果表明,酒店经理实习期望高,实习感知质量也高;实习指导老师实习期望低,实习感知质量也低;而实习生实习期望与实习感知的巨大落差是实习不满意的根源。论文提出酒店对实习期望重新定位,高校加强对实习的组织管理,实习生端正自己的实习态度等建议。     

带阻尼器拉索结构的索力识别研究

为解决带多个阻尼器索结构的索力识别问题,依据动力学相关理论,建立带3个减振器的拉索-减振器动力学模型,推导其频率方程,构造相应的无量纲参数并进行参数分析.结果表明:随着减振器支撑刚度的增加,无量纲振动频率逐渐增大,但这种增大趋势随支撑刚度的继续增加而趋于平缓;随着减振器安装距离的增加,无量纲振动频率逐渐增大,且这种趋势接近线性变化.最后利用有限元分析软件ANSYS并分别采用LINK单元与BEAM单元对其结论进行验证.