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 [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] ... [20]  说明：本文是哈佛化学与化学生物学学院G. M. Whitesides教授研究小组内部分发的论文写作方法，从中我们不但可以学到如何有效的写作论文，而且可以学到一个科研小组是如何协作完成论文的写作。 Whitesides Group: Writing a Paper George M. Whitesides Department of Chemistry and Chemical Biology, Harvard University, Cambridge, MA 02138, USA  阅读全文……Efficient Reading of Papers in Science and Technology Prepared by: Michael J. Hanson Updated by: Dylan J. McNamee version of January 6, 2000 Introduction: Why Read? [态度] Before beginning to read a paper, consider why you are doing it. What do you want to get out of it? Your needs control how you read. If you only need an overview, a brief skim may suffice. If you will present the paper to others, you will need to dig deeply, to challenge the paper’s arguments until you understand it fully. If you will use the information later, taking notes will help you remember it. If you don’t know what you hope to gain from the paper, you can not tell whether reading it will be beneficial or a waste of time. [不同目的选择不同态度和方式] 阅读全文……Titanium Dioxide Almost Breaks the Energy Barrier Dr. John Emsley, Department of Chemistry, University of Cambridge, U.K. Hydrogen gas (H2) promises to solve many of the world's energy problems. As a liquid it could fuel all forms of transport, including aircraft, and as a gas it could be pumped into homes and workplaces to power heating systems and cooking appliances. All we need are unlimited supplies of it, which of course we do not have. What we do have are unlimited supplies of its most stable compound: H2O. Extracting the H2 from H2O has tantalized generations of chemists since it was shown two centuries ago that passing an electric current through water would split it into its component elements. Of course if electrical energy has to be used to extract H2, then the net benefit in energy terms will be nil, but there is a source of energy that is equally unlimited, and that is light from the sun. Paper S.U.M. Khan, M. Al Shahry, W.B. Ingler, Jr., "Efficient photochemical water splitting by a chemically modified n~TiO2," Science, 297: 2243~5, 27 September 2002. in the current Hot Ten brings closer the day when sunlight may make all the H2 we need. 阅读全文……There’s Something New Under the Sun Dr. John Emsley, Department of Chemistry, Cambridge University, U.K. In 1996 the Royal National Theatre in London staged a play by Stephen Poliakoff called Blinded by the Sun in which a chemist claimed to have discovered a catalyst that would produce copious quantities of hydrogen gas from water, simply by exposing it to sunlight. Of course the claim was false, not that it prevented the chemist from becoming famous—and infamous. Much as the world might long for such a method of solving its energy problems, the idea seemed intrinsically implausible. A mere five years later, however, a group of Japanese scientists was within reach of such a goal. If hydrogen gas is to be the fuel of the future, then water will be the source from which it is derived. Although the raw material costs nothing, extracting hydrogen from it is energy intensive. It can be done by electrolytic means, but the electricity has to be generated and indeed that source of power might be better used in other ways. The cheapest source of energy on planet Earth is of course sunlight, and now paper Z.G. Zou, et al., "Direct splitting of water under visible light irradiation with an oxide semiconductor photocatalyst," Nature, 414: 625~7, 6 December 2001. shows how this too might be used to generate hydrogen gas from water. 阅读全文……科技论文的选题是要确定专攻方向，明确待解决的主要问题。它是科技论文写作的第一步，是重要的也是最难的一步。 一、科技论文的选题要明确以下几条原则 1、价值性原则 价值主要指（1）选题的实用价值。（2）选题的理论价值。 既要选择现实性较强的题目，也要考虑其有无理论和认识上的价值，即普遍性的意义，能否能进行理论的分析和综合，从个别上升到一般，从具体上升为抽象。 阅读全文……3D-Dock suite - The growing number of individual protein structures in the databases and the relatively small number of solved complexes makes predictive docking an important theoretical method. FTDock ( F ourier T ransform Dock ) performs rigid-body docking on two biomolecules in order to predict their correct binding geometry. RPScore ( R esidue level P air potential Score ) uses a single distance constraint empiricaly derived pair potential to screen the ouptut from FTDock. MultiDock ( Multiple copy side-chain refinement Dock ) : A further improvement in the quality of the predictions [U]Accelrys[/U]  - Accelrys is the leading provider of simulation and informatics software and services to R&D organizations in the pharmaceutical, biotechnology, and chemicals industries. 阅读全文……今天偶有所感，觉得人与人生活态度的区别真的很大，本以为很稳妥的人生也许过得很乏味，本为很幼稚的人生也许过得很精彩，真的希望能过一种简单、快乐、萧洒一些的生活： 不能简单：以为越复杂、事情做得越多生活就越有保证、越安全 ——— 事实上简单往往意味着高效。 不能萧洒：以为考虑得越多、计划越完美最终的结果就会越成功 ——— 事实上是太多顾虑、太多包袱。 不能放松：以为一放松就不能得到别人的认同，不能取得众人所认为的成功 ——— 事实上什么才是成功？ 当我们“被迫”地追名逐利的时候，我们是否已经忘记了我们本来要的是什么了？或者我们大部分人并不知道自己究竟要的是什么，但我想我们一定不会想过一种每天板着脸孔的高度压迫的复杂的迷失方向的生活吧。 阅读全文……做研究首先要研究文献。 在以前，大部分人做科研只需要定期阅读几本杂志即可。 然而在信息泛滥的今天，获得文献甚至是论文全文已经变得相对简单，各种电子文献数据库的检索功能也很完善。特别是象Web of Science这样的数据库，甚至提供了各种文献的跟踪和统计功能，其目的是利用计算机的功能，让我们发现“Great Work”。 然而，我们经常发现自己陷入文献的漩涡之中，选择文献和阅读文献好象变得比以前更加复杂了。 反思如何阅读文献，我觉得有三点是特别重要的： 阅读全文……中国试剂信息网化工词典 1、 词汇量351556条。其中包含CAS编号的有246309条，既有中文名又有英文名的85922条。部分包含分子量、分子式，熔点、沸点。 2、 可以输入中文名称、英文名称、CAS编号或者分子式进行查询。 3、 部分记录有多个中文名称和多个英文名称，每个名称以开头。 4、 关键词、字的前后顺序会影响检索结果，例如在中文名称中检索“胺 乙基”和“乙基 胺”，检索结果会不同： 检索“胺 乙基”时，会检索到二乙胺基乙基纤维素，但不会检索出四乙基乙二胺。检索“乙基 胺”时，会检索到四乙基乙二胺，但不会检索出二乙胺基乙基纤维素。 阅读全文…… [8] [9] [10] [11] [12] [13] [14] [15] [16] [17] ... 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