A new direction in search of “missing”carbon sinks

ACAS scientist succeeds in developing a new direction for exploring the inorganic carbon cycle of the earth. His creative work was recently reported by the 20th issue of Chinese Science Bulletin in 2007.     

Microbial Carbon Sequestration in the Ocean: The Big Role of Small Bugs in Mitigating Global Climate Change——An Interview with Prof. JIAO Nianzhi

Ocean is the largest carbon reservoir on Earth. By taking up about one-third of all human carbon emissions, it has effectively reduced atmospheric carbon dioxide and eased global climate change. Scientists have studied extensively on the mechanisms of C02 absorption in the ocean, or the so-called ＂carbon pumps＂, from physical to chemical and biological pumps. Microbes, traditionally regarded as organic matter decomposers, had been long neglected until a few years ago Prof. JIAO Nianzhi from Xiamen University proposed the concept ＂microbial carbon pump （MCP）＂ illustrating that these tiny marine inhabitants are also producers of refractory dissolved organic carbon, a persistent form of matter which can be stored in the ocean for thousands of years and thus constitute an ideal carbon pool. Today, the MCP concept has been widely accepted as a promising sequestration strategy, and Prof. JIAO is working hand in hand with scientists from all over the world under the Scientific Committee on Oceanic Research （SCOR） Working Group 134 to better understand how to use these magic creatures for preserving carbon in the deep blue.     

In search of a missing link

Knowledge Management Research & Practice - A variety of indicators suggest that knowledge management (KM), as a field of study and practice, is here to stay. Although still in a formative...     

区域管理：管理学的新方向

区域发展与城市化是世界性的潮流，中国是世界最大的发展中国家，存在着2亿左右的农村剩余劳动力，各地区发展不平衡，中国政府已决定加强西部开发，在这一政策推动下，无论东部还是西部地区，地方政府都采取了积极的经济的政策，产生了发展中必然出现的环境破坏，自然资源大规模开发等问题，事实上大量的农村动力正在进入城市已经成为了不可争辩的事实，所有这些，构成了区域发展与城市化面临的新的管理及政策问题，这些问题将突出地成为我国管理学研究必须回答的问题，成为我国管理科学研究的势点。     

A new mechanism for carbon nanotube evolution

Key discoveries on the growth mechanism of carbon nanotubes(CNTs) have recently been achieved by CAS researcher ZHU Zhenping and his research group at the State Key Laboratory of Coal Conversion,the Institute of Coal Chemistry of CAS, funded by the National Natural Science Foundation of China and the CAS Bairen Program.     

Worldwide impacts of atmospheric vapor pressure deficit on the interannual variability of terrestrial carbon sinksOA

Interannual variability of the terrestrial ecosystem carbon sink is substantially regulated by various environmental variables and highly dominates the interannual variation of atmospheric carbon dioxide(CO₂) concentrations.Thus,it is necessary to determine dominating factors affecting the interannual variability of the carbon sink to improve our capability of predicting future terrestrial carbon sinks.Using global datasets derived from machine-learning methods and process-based ecosy...     

以"三个代表"为指导认真解决好西藏的两件大事

“三个代表”是十六大精神的灵魂。贯彻落实“三个代表”重要思想 ,最根本的问题是加快发展 ,我区各级党组织应把发展作为执政为民的第一要务 ,强化发展理念 ,突出发展重点 ,围绕加快工业化、城镇化、农业产业化和对外开放步伐 ,坚持解放思想与实事求是相统一 ,谋划发展的新的思路和举措。要不断加强和改善党的领导 ,推进党的建设新的伟大工程 ,为加快西藏发展提供坚强的保障。江泽民同志在“十六大”报告中深刻阐述了“三个代表”的重要思想 ,是对党的历史经验的科学总结 ,是指引我们立足当前、开创未来的强大思想武器。新世纪初西藏工作的…     

从“知识分配力”看科技中介机构的作用与走向

“知识分配力”是国家创新系统中的关键性因素。以提高社会“知识分配力”为导向 ,通过开发中间知识产品 ,提高社会知识存量的“可利用性”和整个社会的“知识利用能力” ,向兼具生产和服务功能的中介机构转化 ,成为“创新增值链”中具有重要作用的一个环节 ,是科技中介机构发展的必然走向     

A study of awareness in multimedia search

Awareness of another’s activity is an important aspect of facilitating collaboration between users, enabling an “understanding of the activities of others” (Dourish & Bellotti, 1992). In this paper we investigate the role of awareness and its effect on search performance and behaviour in collaborative multimedia retrieval. We focus on the scenario where two users are searching at the same time on the same task, and via an interface, can see the activity of the other user. The main research question asks: does awareness of another searcher aid a user when carrying out a multimedia search session?To encourage awareness, an experimental study was designed where two users were asked to compete to find as many relevant video shots as possible under different awareness conditions. These were individual search (no awareness), Mutual awareness (where both users could see the other’s search screen), and unbalanced awareness (where one user is able to see the other’s screen, but not vice-versa). Twelve pairs of users were recruited, and the four worst performing TRECVID 2006 search topics were used as search tasks, under four different awareness conditions. We present the results of this study, followed by a discussion of the implications for multimedia information retrieval systems.