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肥胖或超重已经成为现代社会严重的流行性健康问题,是导致糖尿病、脂代谢紊乱等多种代谢疾病的危险因素之一,动物实验是临床前实验研究的重要组成部分,是研究疾病、药理作用的重要方法。本研究目的是研究中链甘油三酯(Medium-Chain Triglycerides,MCT)对大鼠和小鼠体重影响。检索了PUBMED,EMBASE和WEB of SCIENCE三个数据库相关文献,比较分析了含中链甘油三酯或椰子油饮食干预与长链甘油三酯饮食对大鼠和小鼠体重的影响,数据以标准化平均差(SMD)或加权平均差(MD)和95%置信区间(CI)表示。结果发现,中链甘油三酯的干预可以减轻大鼠[SMD,-0.76(95% CI:-1.16,-0.37)]或小鼠[MD,-1.39(95% CI:-2.23,-0.54)]的体重。因此,中链甘油三酯的干预对大鼠和小鼠有一定的改善体重的作用。 相似文献
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太浦河是跨两省一市的长三角生态绿色一体化示范区的空间骨架。目前发布的示范区国土空间规划草案已提出区域协同发展的目标,但从流域尺度的空间规划落实到场地尺度的规划设计尚缺乏中间层次的规划支撑,导致实际问题与解决策略之间的错位。浙大-西浦-同济联合Studio模拟了长三角生态绿色一体化语境下跨行政主体协作的跨学科、多尺度流域规划设计,回溯各个尺度,归纳原型设计策略作为系统性的规划设计导则,探讨在流域尺度进行统一实施的可能性。 相似文献
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长江三角洲城市化进程中面临着多重水风险。近几十年集中式的大型水利基础设施建设工程与严格的土地利用管控措施被广泛实施来管理洪水风险,如今面对更具适应性、生态性的解决方案的需求,这些措施受到了质疑。借鉴三角洲都市主义的理论与方法,从基质、水管理和城市化3个子系统的动态关系视角回溯长三角区域空间的历史演变,研究发现:在由重大历史事件界定的5个时期中,水管理从受制于基质条件过渡到主导城市化,再到与城市化对立,扮演了不断变化的角色;3个子系统变化速率的巨大差异是打破它们之间平衡的重要因素。这一段历史回顾为国土空间规划体系中整合水管理和空间规划提供了多学科的视角,对地方性传统水管理方法的重新认知为研发分散式的适应性水管理策略以及多尺度的空间规划和治理工具提供了参考。 相似文献
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Since 2018, the integrated regional development of the Yangtze River Delta has been subjected as a national strategy to intensify the interconnection between its cities. However, the questions of open space conservation and planning have so far remained essentially quantitative and strongly informed by regulatory and top-down principles. Focusing on the vast green heart between Shanghai, Suzhou, and Hangzhou, this design-driven research project hypothesizes that Taipu Canal can be upgraded from its current technical role into a civic spine that frames new developments and articulates the rich diversity of open spaces, ecosystems, historic water towns and villages. The research adopts a crossscale method of “contextual prototypes” that combines sampling, typological classification, and prototypical design explorations in pilot projects. A reflective phase zooms out to critically assess how these prototypical strategies can be systemized as structuring principles at the regional scale. The conclusion of the article discusses how this prototypical approach offers an opportunity to inductively complement the top-down Chinese territorial planning system, which needs to cope with increasingly complex conditions and vaster scales. 相似文献
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By restructuring its planning system and integrating competences of land resource and water management, environmental conservation, agriculture, as well as spatial planning, under a same Ministry of Natural Resources in 2018, China ambitioned to definitively turn the page on inconsistent and sectoral planning practices. However, existing planning instruments are still linked to administrative boundaries and remain statutory and regulatory in nature, which makes them inadequate to address complex and dynamic megacity regions that span across different administrative entities. The Yangtze River Delta megacity region is the subject of an ambitious integration plan which focuses on economic coordination and urban services, however, there is still no coherent vision on its spatial development at the territorial scale. This article presents the “Jiangnan Park,” a university-led and design-driven research project focusing on the vast triangular plain between cities of Shanghai, Hangzhou, and Suzhou. Using the encompassing metaphor of regional “park” and applying the emerging method of regional design, this project combines mapping, visualization, design strategies, and workshop techniques to elaborate a development vision for this historically and ecologically sensitive area. As a pioneering case of regional design in China, this project exemplifies how the use of cross-scale and cross-sectoral collaborative methods can inform the development of integrative strategies for complex megacity regions. 相似文献
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