对旅游体验及相关研究的解读

本文首先分析旅游体验与休闲的内在联系,在此基础上介绍国内外学术界对旅游体验的研究概况,并就此对相关理论作出客观评述,以期待更多研究者深入到旅游体验的研究中来。     

Information Sharing in a Manufacturer–Supplier Relationship: Suppliers' Incentive and Production Efficiency

While there have been vast discussions on the materialistic benefits of continuous improvement from the Toyota and Honda experiences, the academic literature pays little attention to information sharing. In this study, we construct a dynamic adverse selection model in which the supplier privately observes her production efficiency, and in the contractual duration the manufacturer obtains an informative but imprecise signal regarding this private efficiency. We show that despite the disclosure of proprietary information, information sharing may benefit the supplier; the supplier's voluntary participation is more likely to occur when the shared information is rather imprecise. On the other hand, our analysis also reveals that this information sharing unambiguously gives rise to an upward push of the production quantity, and may sometimes lead to an upward distortion that ultimately hurts the supply chain. We also document the non‐trivial impact of the timing of information sharing on the supplier's incentive to participate.     

国际化学院的课程体验调查分析

北京航空航天大学中法工程师学院通过中外合作的办学模式以实现国际化人才的培养,其重要途径之一就是通过对课程体系进行的改革,而人才培养的质量很大程度上也取决于所授课程的质量。运用一种在国际上普遍采用的课程质量调查方法———大学生课程体验调查,结合国际化学院的特殊背景修订问卷,对北航中法工程师学院与普通学院的学生进行课程体验的调查。调查发现,北航中法工程师学院学生对课程的满意程度高于普通学院学生,特别在良好教学与资源获取方面明显好于普通学院学生,但在课程收获和学业负担方面仍需改进。     

On smoothness of Tukey depth contours

The smoothness of Tukey depth contours is a regularity condition often encountered in asymptotic theory, among others. This condition ensures that the Tukey depth fully characterizes the underlying multivariate probability distribution. In this paper we demonstrate that this regularity condition is rarely satisfied. It is shown that even well-behaved probability distributions with symmetrical, smooth and (strictly) quasi-concave densities may have non-smooth Tukey depth contours, and that the smoothness behaviour of depth contours is fairly unpredictable.     

Predictive Inference for Big,Spatial, Non‐Gaussian Data: MODIS Cloud Data and its Change‐of‐Support

Remote sensing of the earth with satellites yields datasets that can be massive in size, nonstationary in space, and non‐Gaussian in distribution. To overcome computational challenges, we use the reduced‐rank spatial random effects (SRE) model in a statistical analysis of cloud‐mask data from NASA's Moderate Resolution Imaging Spectroradiometer (MODIS) instrument on board NASA's Terra satellite. Parameterisations of cloud processes are the biggest source of uncertainty and sensitivity in different climate models’ future projections of Earth's climate. An accurate quantification of the spatial distribution of clouds, as well as a rigorously estimated pixel‐scale clear‐sky‐probability process, is needed to establish reliable estimates of cloud‐distributional changes and trends caused by climate change. Here we give a hierarchical spatial‐statistical modelling approach for a very large spatial dataset of 2.75 million pixels, corresponding to a granule of MODIS cloud‐mask data, and we use spatial change‐of‐Support relationships to estimate cloud fraction at coarser resolutions. Our model is non‐Gaussian; it postulates a hidden process for the clear‐sky probability that makes use of the SRE model, EM‐estimation, and optimal (empirical Bayes) spatial prediction of the clear‐sky‐probability process. Measures of prediction uncertainty are also given.     

究竟是“失语”还是“得语”——兼论“失语症”的解决之道

在中国现代文论建设中,“失语”现象时有发生,却不是主体;更为主流的是中西文论在遵循精神契合性、民族性、传统性基础上的“得语”。在20世纪的杜甫研究中,“人民性”“现实主义”“民胞物与”等概念的提出,显示出中国文论强大的生命力,是“得语”的明证。疗治“失语症”应该尊重中国文论建设基本规律的前提下,准确认清古代文论在当代社会的文化定位,以及它在经历百年现代化历史进程之后的社会属性,较少掺杂民族主义情感,代之以学理性的分析,重新评估中国现当代文学的创作实际。     

国外重大突发公共卫生事件心理危机干预措施及启示

2020年初,新型冠状病毒肺炎疫情给患者、医护工作者乃至普通民众带来了严重的心理危机。我国逐渐成熟的心理危机干预系统在疫情期间取得成效,但同时也反映出心理危机干预系统建设存在欠缺。文章介绍了美国、以色列等发达国家处置突发公共卫生事件心理危机的机构设置、管理系统、治疗手段、信息沟通系统等干预措施,为加强我国突发公共卫生事件心理危机干预体系建设提供了科学依据和建议。     

体验经济背景下的攀枝花漂流体育旅游发展研究

体验经济是以提供体验作为主要产品形式的新经济形态.四川省攀枝花市凭借自身的旅游资源优势,成功打造出 "万里长江第一漂"的漂流体育旅游品牌.虽然目前还存在着客源区域过于集中、市场化程度低、旅游产品设计和宣传不到位、服务设施还不够完善等问题,但通过策划独特的体验主题、进行市场细分、实施体验营销战略、提供全程的服务体验等措施可以促进其进一步发展.     

价值观教育:问题与对策

价值观是指主体按照客观事物对其自身及社会的意义或重要性进行评价和选择的原则、信念和标准。以教与学为活动形式,有目的、有意识地促进个体价值观发展的实践活动就是价值观教育。当前价值观教育存在的问题主要是:教育者时常戴着面具训导学习者;知性色彩浓厚、人文性缺失在很大程度上加剧了价值观教育的困窘乏力;学校价值观教育在方法与内容上有错位之弊;家庭与学校在价值观教育上未能拧成一股绳。价值观教育的对策是:转变教育者的角色——由主宰者变为"平等中的首席";倡导走向人本与体验的价值观教育;不断完善价值观教育的方法与内容;加强家校协作。