Xem 1-20 trên 383 kết quả Fragments
  • Kỹ thuật RFLP là kỹ thuật nghiên cứu tính đa hình chiều dài của các phân đoạn DNA dựa trên điểm cắt các enzim giới hạn. Khi ủ DNA với enzim giới hạn ở dung dịch đệm thích hợp ở pH, nhiệt độ thích hợp sẽ sẽ tạo ra những phân đoạn DNA với kích thước khác nhau, từ đó lập nên các bản đồ gen. Tham khảo chương hai "Kỹ thuật RFLP - Restriction fragment length polymorphisms" để hiểu hơn về vấn đề này.

    doc10p thanhbinh2305 09-11-2015 70 28   Download

  • DNA fragmentation is a hallmark of apoptosis that is induced by apopto-tic stimuli in various cell types. Apoptotic signal pathways, which eventu-ally cause DNA fragmentation, are largely mediated by the family of cysteinyl aspartate-specific protease caspases.

    pdf15p mobifone23 07-01-2013 11 2   Download

  • Non-sentential utterances (e.g., shortanswers as in “Who came to the party?”— “Peter.”) are pervasive in dialogue. As with other forms of ellipsis, the elided material is typically present in the context (e.g., the question that a short answer answers). We present a machine learning approach to the novel task of identifying fragments and their antecedents in multiparty dialogue.

    pdf8p bunbo_1 17-04-2013 21 2   Download

  • Dominance constraints are logical descriptions of trees that are widely used in computational linguistics. Their general satisfiability problem is known to be NP-complete. Here we identify the natural fragment of normal dominance constraints and show that its satisfiability problem is in deterministic polynomial time.

    pdf8p bunrieu_1 18-04-2013 21 2   Download

  • This paper presents the problem within Hittite and Ancient Near Eastern studies of fragmented and damaged cuneiform texts, and proposes to use well-known text classification metrics, in combination with some facts about the structure of Hittite-language cuneiform texts, to help classify a number of fragments of clay cuneiform-script tablets into more complete texts.

    pdf5p nghetay_1 07-04-2013 11 1   Download

  • We present a simple but accurate parser which exploits both large tree fragments and symbol refinement. We parse with all fragments of the training set, in contrast to much recent work on tree selection in data-oriented parsing and treesubstitution grammar learning. We require only simple, deterministic grammar symbol refinement, in contrast to recent work on latent symbol refinement.

    pdf10p hongdo_1 12-04-2013 13 1   Download

  • We present a novel method for extracting parallel sub-sentential fragments from comparable, non-parallel bilingual corpora. By analyzing potentially similar sentence pairs using a signal processinginspired approach, we detect which segments of the source sentence are translated into segments in the target sentence, and which are not. This method enables us to extract useful machine translation training data even from very non-parallel corpora, which contain no parallel sentence pairs.

    pdf8p hongvang_1 16-04-2013 22 1   Download

  • We introduce two novel methods of text categorization in which documents are split into fragments. We conducted experiments on English, French and Czech. In all cases, the problems referred to a binary document classification. We find that both methods increase the accuracy of text categorization. For the Na¨ve Bayes classifier this increase is ı significant.

    pdf4p bunbo_1 17-04-2013 10 1   Download

  • We aim at finding the minimal set of fragments which achieves maximal parse accuracy in Data Oriented Parsing. Experiments with the Penn Wall Street Journal treebank show that counts of almost arbitrary fragments within parse trees are important, leading to improved parse accuracy over previous models tested on this treebank (a precis ion of 90.8% and a recall of 90.6%). We isolate some dependency relations which previous models neglect but which contribute to higher parse accuracy.

    pdf8p bunrieu_1 18-04-2013 10 1   Download

  • This paper describes an analysis of telegraphic fragments as regular structures (not errors) handled by rn~n~nal extensions to a system designed for processing the standard language. The modular approach which has been implemented in the Unlsys natural language processing system PUNDIT is based on a division of labor in which syntax regulates the occurrence and distribution of elided elements, and semantics and pragumtics use the system's standard mechankms to interpret them.

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  • Disfluent speech adds to the difficulty of processing spoken language utterances. In this paper we concentrate on identifying one disfluency phenomenon: fragmented words. Our data, from the Spoken Dutch Corpus, samples nearly 45,000 sentences of human discourse, ranging from spontaneous chat to media broadcasts. We classify each lexical item in a sentence either as a completely or an incompletely uttered, i.e. fragmented, word.

    pdf8p bunthai_1 06-05-2013 18 1   Download

  • That at least some syntax is necessary to support semantic processing is fairly obvious. To know exactly how much syntax is needed, however, and how and when to apply it, is still an open and crucial, albeit old, question. This paper discusses the solutions used in a semantic analyser of French called SABA, developed at the University of Liege, Belgium. Specifically, we shall argue in favor of the usefulness of two syntactic processes: fragmentation, which can he interleaved with semantic processing, and part-of-speech disambiguation, which can be performed as a preprocesslng step. ...

    pdf7p buncha_1 08-05-2013 6 1   Download

  • Tham khảo tài liệu 'presentation cơ bản về ngữ pháp tiếng anh: fragments', ngoại ngữ, chứng chỉ a, b, c phục vụ nhu cầu học tập, nghiên cứu và làm việc hiệu quả

    ppt7p yuki_snow_86 21-05-2009 395 190   Download

  • Báo cáo Kỹ thuật di truyền: Kỹ thuật Aflp (amplified fragments length polymorphism) sẽ giới thiệu về kỹ thuật Aflp; nguyên tắc, hóa chất, trang thiết bị, dụng cụ; các bước tiến hành; ưu, nhược điểm; ứng dụng; kết luận và tài liệu tham khảo.

    doc15p nguyenvanlieu09 17-12-2014 39 21   Download

  • Arthur Waite wrote his Key to the Tarot (which was not Pictorial until artwork was added in a later edition) as a companion to the Waite-Smith Tarot, providing theory, history and meanings. He covers various theories of the history of the cards, and gives a quick overview of the images themselves (the specifics of which occasionally seem to diverge from Pamela Smith's actual artwork). His symbolism and interpretations are based substantially upon his readings of Book "T", Etteilla, and possibly Robert Chamber's "Notes on English Cartomancy".

    pdf134p conchokon 08-01-2013 49 12   Download

  • Learn something new in an Instant! A short, fast, focused guide delivering immediate results. Learn how to write apps that work on any Android version. Ready to use code to solve any compatibility issue. Get hands-on with the biggest issue that faces Android developers

    pdf66p phungnguyet_123 25-02-2013 22 8   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành hóa học dành cho các bạn yêu hóa học tham khảo đề tài: Asymptotic Analysis of Coagulation–Fragmentation Equations of Carbon Nanotube Clusters

    pdf13p sting10 07-03-2012 15 4   Download

  •  Sequence Diagrams - Software Design Methodology provides about introduction, basic notation, alternating paths, modularity (referencing a diagram,  parallel fragments, critical fragment) behavior Modeling, language, lternations and some thing else.


    pdf28p ngkhacvu 22-05-2015 8 4   Download

  • Tuyển tập các báo cáo nghiên cứu về y học được đăng trên tạp chí y học General Psychiatry cung cấp cho các bạn kiến thức về ngành y đề tài: Biomechanical modulation of collagen fragment-induced anabolic and catabolic activities in chondrocyte/agarose constructs...

    pdf15p thulanh14 19-10-2011 24 3   Download

  • Tuyển tập báo cáo các nghiên cứu khoa học quốc tế ngành y học dành cho các bạn tham khảo đề tài: Study of quality of life and its determinants in patients after urinary stone fragmentation

    pdf6p panasonic05 23-12-2011 19 3   Download

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