Subjects: Digital Publishing >> New Media submitted time 2023-10-08 Cooperative journals: 《中国传媒科技》
Abstract：随着移动互联网的发展以及用户阅读习惯的转变，短视频成为人们获取信息的重要方式。各类短视频平台竞相崛起，吸引众多机构和个人入驻，全社会涌起一股短视频创作热潮。在这个过程中，由于技术、受众、资本、文化等多种因素，一些反主流、博眼球的短视频大量涌现形成裂变式传播，且具有广泛受众基础，形成了短视频奇观化现象，对社会发展造成了一定的消极影响。通过分析短视频奇观的生成逻辑及影响，重新审视和思考短视频的正确发展路径，为营造风清气正的网络舆论环境提供一些参考。
Subjects: Geosciences >> Atmospheric Sciences submitted time 2023-08-25 Cooperative journals: 《干旱区研究》
Abstract： Globally, China is one of the country’s most frequently and severely affected by drought. Thesefrequent drought events have subsequently caused serious economic, social development, and ecologicalenvironment losses. Drought simultaneously leads to alterations in both space and time, and this paper aims toidentify drought events and quantify their spatial and temporal dynamic evolution using a three- dimensionalclustering algorithm for mainland China, from 1981-2020. The three- dimensional clustering algorithm can beused to effectively identify drought events and describe their dynamic processes. From 1981-2020 there were102 drought events lasting 2 months or more in mainland China. Spatially, the trajectory of drought events wasfound to show a tendency to develop from east to west. Temporally, there are high time overlaps betweendifferent drought events. In addition, drought events with wide coverage and high severity were concentrated inthe period from 2005-2010. The findings of this paper will help to elucidate the spatial and temporal evolutionpatterns of drought events and provide scientific references for drought monitoring and drought risk managementin mainland China.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-28 Cooperative journals: 《中国科学院院刊》
Abstract： There have been rapid progresses in biodiversity science of China in recent two decades. These progresses have been achieved in six key respects: species catalogue, origination and evolution of biodiversity, biodiversity maintenance and its relationships with ecosystem functioning and services, threats to biodiversity and biodiversity’s responses to global change, biodiversity and ecological security, and construction of research platforms. However, we still lack theoretical breakthrough in biodiversity science. For further progresses, we propose to: (1) translate basic biodiversity research into biodiversity conservation for sustainable utilization; (2) strengthen application of advanced technologies, including high-throughput sequencing, genomics, and remote sensing; and (3) strengthen and expand international collaborations.
Subjects: Other Disciplines >> Synthetic discipline submitted time 2023-03-19 Cooperative journals: 《中国科学院院刊》
Abstract： Biodiversity is not only important strategic resource, but also the safeguard to the ecological security and success of the development of ecological civilization. Gathering “big data” of biological sciences at different levels, the in-depth data mining and novel discoveries stemmed from cross disciplines will switch life sciences to the new data-intensive science paradigm, and eventually leads to the change of the way how life system should be understood, and how biodiversity resources should be utilized sustainably. Therefore, to establish an infrastructure for the big biodiversity data in China is urgently needed. This infrastructure incorporates big biodiversity data from both macro and micro scales, and integrates data services and data mining system. It incorporates in-depth data mining tools, simulation models, standards for compiling and sharing data of biodiversity and ecosystems. In this system, the big data from palaeontology and genomics, diversity of species and ecosystems are well integrated. The datasets from geography, climatology, remote sensing, environmental and social sciences, and economics are also included as a comprehensive visualized big data platform being available to the public. It could be used to promote sound decision making for biodiversity conservation and ecological security in China. These services will also contribute greatly to the advancement of biodiversity science, the industrial innovation and development, providing fundamental information for fulfilling the national obligations in implementing the Convention on Biological Diversity, the prevention and control of invasive alien species and the monitoring of international trade of wildlife, and so on.
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