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1.
Epistemic communities are an established concept in the study of international relations but can also explain policy change at the domestic level. This article asks why some epistemic communities manage to convince decision makers of their preferred policies while others do not. It suggests that the reason lies in the causal mechanism of epistemic communities' influence on decision makers, mediated by decision makers' demand for expert input. Most epistemic communities scholarship focuses on single case studies where the communities' influence on policy was strong and clear, leading to an overestimation of the groups' influence. To help correct this probable bias, this article compares a successful case of epistemic community influence (health technology assessment in Poland) with an unsuccessful example of the same policy (in the Czech Republic). The juxtaposition allows for unpacking of the necessary parts of the causal mechanism (emergence of an epistemic community, its activity, access to decision makers, and successful suasion) and separating them from the crucial scope condition. Decision makers' uncertainty about the policy issue at hand has traditionally been the key scope condition for epistemic communities but the successful Polish case demonstrates that epistemic communities can be influential even in highly certain areas of routine policymaking, leading to a reconceptualization of uncertainty as policymakers' demand for expert input. Demand can originate from various sources, but any change of it affects individual parts of the causal mechanism, leading to a success or failure of epistemic communities' policy enterprise.  相似文献   
2.
季节性移民聚居现象受到西方学术界的极大关注,而我国鲜有研究。采用观察法和访谈法,对巴马盘阳河流域"一地多类"的季节性移民社区的形成过程、类型特征与作用机理进行归纳与揭示。研究表明:①季节性移民社区演变历经萌芽、快速参与和转型发展三个阶段,社区人口结构、聚居空间、经济业态、景观设施及人文氛围在不同时期呈现出不同的特征;②季节性移民社区形态存在差异,可以归类为交融性社区、优势性社区,共享性社区,纯粹性社区。③季节性移民社区是差异化的"美好生活"需求、独特的长寿资源及乡村生活环境、外来商业资本、地方政府调控和利益共生等"五力驱动"的结果,不同发展阶段其主导动力和作用方式存在差异。  相似文献   
3.
明代年例银制度是经过长期演变逐渐形成的一项军事供给制度。宣德十年(1435)首先出现京运银,历经景泰、天顺时期,京运银两中有一笔银两开始向"岁例"发生制度性转变的趋势;成化、弘治之际,"常数"、"岁运"、"岁例"、"年例"、"年例银"等名称的出现是这笔京运银两制度化发展的结果,标志着明代年例银制度的初步形成;嘉靖十六年(1537)年例银一年一发的规定以及年例银会计预算制的出现,意味着明代年例银制度的完全确立。年例银制度的形成和确立,改变了明代国家的军事供给体制,是明代军事财政史上的一个重大变革。  相似文献   
4.
Kicking in soccer has been the subject of scientific research for more than 40 years yet review articles summarizing the biomechanical fundamentals of kick optimization as a guide to coaching are scarcely to be found. The current review article aims to bridge the gap between scientific research into the maximal instep kick (including studies employing 3D motion capture and full-body biomechanical modelling) and the application of such research in coaching. It does so by supplying a scientifically founded, coaching-friendly article explaining identifiable characteristics and motor control sequencing that define this skill. Relevant biomechanical factors are identified in a way that should help coaches better develop training programmes and, at the same time, foster better understanding of the skill among athletes. Such information will contribute to both accelerated skill acquisition and, by concomitant gains in skill efficiency, the development of programmes that minimize risk of injury to athletes during training.  相似文献   
5.
During recent reinvestigations in the Great Cave of Niah in Borneo, the ‘Hell Trench’ sedimentary sequence seen by earlier excavators was re-exposed. Early excavations here yielded the earliest anatomically-modern human remains in island Southeast Asia. Calibrated radiocarbon dates, pollen, algal microfossils, palynofacies, granulometry and geochemistry of the ‘Hell Trench’ sequence provide information about environmental and vegetational changes, elements of geomorphic history and information about human activity. The ‘Hell’ sediments were laid down episodically in an ephemeral stream or pool. The pollen suggests cyclically changing vegetation with forest habitats alternating with more open environments; indicating that phases with both temperatures and precipitation reduced compared with the present. These events can be correlated with global climate change sequences to produce a provisional dating framework. During some forest phases, high counts of Justicia, a plant which today colonises recently burnt forest areas, point to fire in the landscape. This may be evidence for biomass burning by humans, presumably to maintain forest-edge habitats. There is evidence from palynofacies for fire on the cave floor in the ‘Hell’ area. Since the area sampled is beyond the limit of plant growth, this is evidence for human activity. The first such evidence is during an episode with significant grassland indicators, suggesting that people may have reached the site during a climatic phase characterised by relatively open habitats ∼50 ka. Thereafter, people were able to maintain a relatively consistent presence at Niah. The human use of the ‘Hell’ area seems to have intensified through time, probably because changes in the local hydrological regime made the area dryer and more suitable for human use.  相似文献   
6.
金、元以后永定河水害急剧增多,由北京的母亲河变成了常常威胁京城安全的害河。金代以来各朝都十分重视对永定河的治理,元明清三朝更是把修筑永定河的堤防作为京畿事务中的重大问题。历史上永定河的大规模筑堤为京城减少了洪水之虞,但同时也带来了包括北京水环境在内的一系列地理环境的变化。本文追溯永定河筑堤后北京地区水环境变迁以及下游地貌改变的重要史实,阐述筑堤工程对于流域整体环境的深远影响,以期引起人们对历史上一些重大水利工程的环境效应的反思。  相似文献   
7.
杨效忠  严星雨 《人文地理》2022,37(3):1-6+162
近年来,旅游业已然成为中国国民经济的战略性支柱产业,但以经济发展为主要目标的旅游研究却呈现出固化和乏味的态势。未来旅游研究应科学与哲学齐头并进,与生命哲学的结合,更是旅游研究顺应时代发展的应有之义。文章以生命哲学研究的主要内容梳理为切入点,探索旅游生命观的形成,以生命哲学视野下的旅游概念与本质为整个研究体系的逻辑起点,分析生命哲学视域下旅游发展的内在机理,从矛盾论、价值论的视角逐步探讨未来旅游的研究与实践方向。结合当今时代特征,发现生命哲学下的旅游本质应是体察风景、体验生活与体悟生命的统合。人与自然共同构建生命共同体,科学旅游发展观应转向“以生命为本”,未来旅游的最终目的是促进人的生命自由和全面发展,实现人与自然的生命延续。  相似文献   
8.
张瑾 《史学月刊》2000,12(3):110-115
民国重庆城市现代化起步于刘湘“军人干政”时期。而川江航运的繁荣,城市精英的觉醒以及刘湘政权的若干举措,为“上海模式”输入重庆提供了重要条件。作为后发外生型条约体系城市,重庆的现代化不仅依靠西方现代性要素的刺激,而且更直接地受到“上海模式”的辐射和拉动。“军人干政”的负面效应致使以“上海模式”为蓝本的重庆城市现代化呈现畸变态势。在“上海模式”的冲击下,在本社会还缺少现代性因素积累的情况下,重庆城市现代化于20年代末期启动。  相似文献   
9.
The aim of this article is to analyse and discuss the development of performative spaces in public libraries from a cultural policy perspective. First, a framework of three concepts of culture, 1.0–3.0, is used as a tool to analyse the overall development of public libraries. Against this background, we introduce the notion of performative spaces in public libraries by highlighting Nordic examples. The tendency can also be seen on a broader level in European and North American libraries, where a ‘performative turn’ can be seen as the relationship between the library and its users, especially the younger ‘digital natives’. The rationales behind the emergence of performative spaces in public libraries are analysed and discussed: democratisation, empowerment and economic impact. This article concludes that the performative spaces are legitimized by multiple rationales in the same way as cultural policies and cultural institutions are legitimised today.  相似文献   
10.
The development of tourism can have a considerable sociocultural impact on ethnic communities, but few studies have attempted to separate the unique impact of ethnic tourism from the overall impact of modernization and describe its mechanism clearly. This paper describes a quasi-natural experiment performed in three typical Dai villages in different stages of tourism development. A crosswise and longitudinal comparative study was performed on Dai village culture. The study indicates the following: (1) spiritual culture has been transmitted relatively unchanged across generations in three Dai villages, but material culture has undergone various degrees of change. (2) The changes in material culture and some parts of institutional culture have been caused primarily by the pressure of overall social modernization. (3) Currently, the overall thrust of modernization in mainstream Chinese society has driven some ethnic cultural practices out of use, while the endogenous driving force of tourism development in ethnic communities has pulled them back into use. (4) Under the influence of modernization, the issue of whether ethnic tourism communities can be developed in a sustainable way depends on both bottom-up and top-down factors: the leading role played by community elites internally, developing useful parts of ethnic culture and discarding useless parts during repeated games in the tourism field, and government policy and guidance facilitating planning.  相似文献   
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