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土地荒漠化是全球可持续发展面临的问题和挑战。中国政府提出将"丝绸之路经济带"建设与中亚的生态环境保护融于一体,打造中国-中亚命运共同体,推动"绿色丝绸之路"的可持续发展。然而,咸海生态危机引发水体大幅缩减,生物多样性丧失,以及土地盐渍化、沙化、盐尘等已成为"绿色丝绸之路"建设在中亚遇到的重大环境问题。文章在梳理咸海生态危机引发的土地荒漠化问题的基础上,科学分析了近30年来咸海地区沙化和盐渍化土地发展的趋势,探讨了阿姆河流域-咸海地区植被稳定性和承载力的空间分异性,提出基于多学科融合的沙化和盐渍化土地生态恢复的思路和防控对策。助力解决咸海生态危机及荒漠化问题是建设"绿色丝绸之路"的焦点之一,也是构建人类命运共同体和践行生态文明全球价值观的重要体现。 相似文献
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“一带一路”倡议实施10年以来,在推动我国构建人类命运共同体、积极融入全球治理体系方面发挥了重要作用,同时对国内区域发展起到了重要的促进作用。青藏高原是地球“第三极”,是重要的国际化区域,更是“一带一路”重要的组成部分,面临着打通南亚陆路通道的新机遇。文章结合实际案例对“一带一路”科技合作支撑青藏高原区域发展进行了分析,系统梳理了当前“一带一路”下的青藏高原地区的国际合作情况,包括科技合作计划与项目、国际合作组织、科学数据国际合作、人才培养等方面的进展,总结了其中存在的成效和不足,并在此基础上进一步提出了“一带一路”科技合作支撑区域协调发展的建议。 相似文献
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根据中亚五国科技部报告、国际组织专题报告,基于Web…of…Science数据库、InCites数据库、ESI数据库,采用文献计量法、辅以社会网络分析法,从科技投入和产出两方面分析中亚五国的科研竞争力、重点研究学科和优势学科,探讨"一带一路"倡议提出前后中亚五国的国际科技合作变化,并依据中亚五国的科技政策归纳总结各国的优先发展产业。研究发现,中亚五国的科研竞争力参差不齐,学科发展各有侧重,各国政策对产业优先发展方向都进行了调整。为推进"一带一路"建设,深化中国与中亚五国的国际科技合作,中国与中亚五国应在物理、数学、化学等基础学科领域加大合作,实现彼此学科共同发展;中国应在临床医学、环境生态、动植物科学等学科领域加强与中亚五国合作以进一步提升科技影响力,抓住中亚国家产业调整机遇推动在农业、环境保护、轻工业、能源以及信息通信等高新技术领域的科技合作,采取国别差异化选择开展科研合作以提高与中亚各国的科技合作效率。 相似文献
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旨在为推进“一带一路”建设,深化中国与中亚五国的国际科技合作,提供客观、可靠的中亚五国科研竞争力、学科发展分析和科技合作建议。依据中亚五国科技部报告,国际组织专题报告,Web of Science数据库、Incites数据库和ESI数据库,采用文献计量法,辅以社会网络分析法,从科技投入和产出两方面分析中亚五国的科研竞争力、重点研究学科和优势学科,探讨其“一带一路”战略前后的国际科技合作变化;依据中亚五国的科技政策,归纳总结各国的优先发展产业。研究发现,中亚五国科技竞争力参差不齐,学科发展各有侧重,各国政策对产业优先发展方向进行了调整。中国与中亚五国应在物理、数学、化学等基础学科领域加大合作,实现彼此学科共同发展;应在临床医学、环境生态、动植物科学等学科领域加强合作,提升中国的科技影响力;应抓住中亚国家产业调整机遇,推动在农业、环境保护、轻工业、能源以及信息通信等高新技术领域的科技合作;采取国别差异化选择开展科研合作,以提高中国与中亚各国的科技合作效率。 相似文献
5.
基于“一带一路”倡议下的国际科技创新合作模式的研究,结合“一带一路”沿线国家全球竞争力评级,着重对江苏省与相关“一带一路”沿线国家在产业研发合作与学术研究合作两个方面进行项目统计分析,并在此基础上归纳和思考了近年来江苏参与“一带一路”合作的实践做法,为继续深化“一带一路”创新合作与技术转移提供有益的参考。 相似文献
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“一带一路”倡议提出以来,中国与“一带一路”共建国家积极开展创新合作,在基础科学研究、技术转移转化、合作网络与平台基地建设等方面取得了可喜成绩。当前,国内外政治经济格局新变化和新形势对“一带一路”科技合作创新建设提出了更高的要求。因此,高质量共建“一带一路”需要总结经验,找准科技合作领域。在此背景下,文章梳理了“一带一路”的科技创新建设现状及面临的主要挑战,研判了未来科技创新合作的重点领域和任务,进一步针对“一带一路”共建国家战略需求与发展基础,提出了具体的科技领域创新合作机制和发展方向。 相似文献
8.
摘要：自2013年习近平主席提出“一带一路”倡议以来,中国秉持和平合作、开放包容、互学互鉴、互利共赢的理念,全方位推进务实合作,打造政治互信、经济融合、文化包容的利益共同体、责任共同体和命运共同体,在政治、经济、文化等领域成果丰硕。尤其是“一带一路”在科技和文化领域的发展,已然成为对接各国发展战略的粘合剂。诚然,科技与文化发展不仅反映着一定时期国家间文化的生态状况,而且在世界互联互通的发展中逐步体现着人类命运共同体意识,因此探究科技和文化的合作发展,也是全球治理的重要内容。本文点面结合,以“一带一路”沿线7个合作紧密的国家为典型,全面分析中国与“一带一路”国家在科技和文化方面合作发展的现状,窥见其存在的问题,并提出建设性的意见建议。 相似文献
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中国已成为世界最大出境客源市场,出境旅游的国际影响力处于领先地位。检验“一带一路”倡议对中国出境旅游流的动态影响并剖析其作用机制,对借助“一带一路”倡议发挥中国出境旅游影响力有重要指导意义。基于理论分析,本文系统阐释了“一带一路”倡议与中国出境旅游流的关系,使用2001—2019年117个国家的国际面板和文本数据,以“一带一路”倡议实施为准自然实验,检验“一带一路”倡议对中国出境旅游流的影响,并结合中介效应、文本挖掘与分析、三重差分法、调节效应模型探索影响的作用路径。研究发现：①“一带一路”倡议显著促进了前往参与国的中国出境旅游流,这种影响表现出参与当年的及时效应、较晚参与的红利缩减,且参与国出境市场潜力更大的特点。②“一带一路”倡议通过加强参与国同中国的贸易往来和文化交流,推动了中国前往参与国的商务、文化及相关旅游活动,存在“因商而游”和“寻文而至”的影响路径。不同贸易和文化实力情境下,由于小规模贸易的经济理性和文化交流影响的边际效应递减,两种机制分别呈现出规模经济和规模不经济的差异性特征。③“因商而游”和“寻文而至”间存在良性互动,有着交互促进的正向影响。本文为推动“一带一路”倡议建设,提高中国国际影响力提供了新思路和政策启示。 相似文献
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“一带一路”倡议实施10年以来,已成为当今世界深受欢迎的国际公共产品和国际合作平台。我国与“一带一路”共建国家在推动健康、绿色、数字、创新等新领域的科技战略规划,建设国际科学组织、科教合作中心,开展科技合作交流、提供人才培养平台、服务民生、促进区域高质量发展等科技创新与合作已取得相当的进展与成果。然而,新时期“一带一路”在科技创新领域还面临顶层设计与机制不够完善、科技创新与合作的模式与深度还需提升、专业人才较为短缺等诸多问题与挑战。在此背景下,文章系统分析了科技创新与合作在“一带一路”高质量发展中的关键性作用,并在此基础上,提出了科技创新与合作支撑“一带一路”高质量发展的战略目标、基本原则,指出了新时期“一带一路”科技创新与合作的重点领域与重点任务,以期为探索“一带一路”发展面临挑战的解决方案提供科学参考。 相似文献
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A research group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol-a chemical found in the skins of red grapes in red wine-can improve the sensitivity of mice to the hormone insulin according to a report in the October issue of Cell Metabolism.…… 《中国科学院院刊(英文版)》2008,22(1):14-15
Aresearch group led by Prof. ZHAI Qiwei from the Institute for Nutritional Sciences under the CAS Shanghai Institutes for Biological Sciences has discovered that even relatively low doses of resveratrol--a chemical found in the skins of red grapes and in red wine--can improve the sensitivity of mice to the hormone insulin, according to a report in the October,2007 issue of Cell Metabolism. As insulin resistance is often characterized as the most critical factor contributing to the development of Type 2 diabetes, the findings“provide a potential new therapeutic approach for preventing or treating” both conditions, the researchers said. 相似文献
12.
《中国科学院院刊(英文版)》2008,22(1):2-3
CAS should stick to the principle of rendering service to, and giving impetus for, the development of China＇s science enterprise by making S＆T innovations, said CAS President LU Yongxiang. The CAS president made the remarks in a recent talk to communicate the gist of the winter session of the Party＇s Leading-member Group at CAS, which was held from 7 to 11 January in Beijing. 相似文献
13.
Marjorie Armstrong-Stassen Margaret Landstrom Ramona Lumpkin 《The Information Society》1998,14(2):153-164
This study examined how students who had no prior experience with videoconferencing would react to the use of videoconferencing as an instructional medium. Students enrolled in seven different courses completed a questionnaire at the beginning of the semester and again at the end of the semester. Students at the origination and remote sites did not differ in their reactions toward videoconferencing but there was a significant difference for gender. Women reacted less favorably to videoconferencing. Compared to the beginning of the semester, students reported significantly less positive attitudes toward taking a course through videoconferencing at the end of the semester. There were no significant differences in students' attitudes toward videoconferencing across courses at the beginning of the semester but there were significant differences across the courses at the end of the semester. The results suggest the need for better preparation for both students and instructors. 相似文献
14.
《中国科学院院刊(英文版)》2008,22(1)
With great care, Dr. ZHOU Zhonghe takes out a package wrapped by cotton tissue from a drawer and says: "This is the gem of our collections: the fossil of a bird that lived 125 million years ago!" Then, pointing at a tiny mound, he explains: "Look, this is the claw and that is the head. It was in the egg shell and ready to hatch ... The species fell into a family of waterside inhabitants." 相似文献
15.
A joint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology his co-workers from Norway US Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells suggesting that China's projected climate warming could decrease the pest's numbers. The study was published in Proceedings of the National Academy of Sciences on September .…… 《中国科学院院刊(英文版)》2008,22(1):6-7
Ajoint study by Prof. ZHANG Zhibin from the CAS Institute of Zoology and his co-workers from Norway, US and Swiss have indicated that historical outbreaks of migratory locusts in China were associated with cold spells, suggesting that China＇s projected climate warming could decrease the pest＇s numbers. The study was published in Proceedings of theNational Academy of Sciences on 17 September, 2007. 相似文献
16.
Caroline Haythornthwaite 《The Information Society》2001,17(3):211-226
A computer-mediated group is a complex entity whose members exchange many types of information via multiple means of communication in pursuit of goals specific to their environment. Over time, they coordinate technical features of media with locally enacted use to achieve a viable working arrangement. To explore this complex interaction, a case study is presented of the social networks of interactions and media use among members of a class of computer-supported distance learners. Results show how group structures associated with project teams dominated who communicated with whom, about what, and via which media over the term, and how media came to occupy their own communication niches: Webboard for diffuse class-wide communication; Internet Relay Chat more to named others but still for general communication across the class; and e-mail primarily for intrateam communication. Face-to-face interaction, occurring only during a short on-campus session, appears to have had a catalytic effect on social and emotional exchanges. Results suggest the need to structure exchanges to balance class-wide sharing of ideas with subgroup interactions that facilitate project completion, and to provide media that support these two modes of interaction. 相似文献
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Active biological molecules functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery disease diagnosis therapy new nanodevice construction.…… 《中国科学院院刊(英文版)》2008,22(1):22-22
Active biological molecules and functional structures can be fabricated into a bio-mimetic system by using molecular assembly method. Such materials can be used for the drug delivery, disease diagnosis and therapy, and new nanodevice construction. 相似文献
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Electronic data interchange (EDI) provides means for interorganizational communication, creates network externalities, requires an advanced information technology (IT) infrastructure, and relies on standards. In the diffusion of such innovations, institutional involvement is imperative. Such institutions contain governmental agencies, national and global standardization organizations, local government, and nonprofit private organizations like industry associations. The last type of organizations we call intermediating institutions. They intermediate or coordinate ("inscribe") the activities of a group of would-be adopters. Unfortunately, little is known of how these organizations shape the EDI diffusion trajectory. In this article we examine one specific type of intermediating organizations?industry associations?and how they advanced the EDI diffusion process in the grocery sectors of Hong Kong, Denmark and Finland. We identify six institutional measures, placed into a matrix formed by the mode of involvement (influence vs. regulation) and the type of diffusion force (supply push vs. demand pull), that can be mobilized to further the EDI diffusion. Industry associations were found to be active users of all these measures to varying degrees. Their role was critical especially in knowledge building, knowledge deployment, and standard setting. Furthermore, institutional involvement varied due to policy and cultural contingencies and power dependencies. 相似文献
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Leah A. Lievrouw 《The Information Society》2000,16(2):155-159
This essay focuses on universal service and the Internet as means to support social and political participation. The emphasis on access to telecommunications systems in conventional approaches to universal service is contrasted with access to content. A model of the information environment is described that accounts for the roles of content and conduit, both of which are necessary conditions to achieve true access. A method is outlined for employing information indicators to observe or measure the information environment. 相似文献
20.
Puay Tang 《The Information Society》1998,14(1):19-31
The increasing prospects of digital piracy has prompted the perceived need by electronic publishers to adopt technical systems of protection, and governments to reform their copyright laws. This article is a preliminary study of the management of intellectual property by electronic publishers, defined as those involved in the production of online databases, and CD-ROMs. It focuses on three main issues: (1) how electronic publishers view the increasing threat of piracy; (2) the methods of protection employed to protect intellectual property in digital format; and (3) the importance of technological protection of intellectual property in electronic publications. The analysis is based on a sample of 23 UK electronic publishers. The interviews revealed an interesting assortment of protection methods and did not show that technological protection was a preferred way. Instead, the means of protection, in addition to copyright law, comprised niche markets, pricing, trust, bad publicity, and nontechnical and technical means. 相似文献