Báo cáo khoa học: "CHARACTERIZING STRUCTURAL DESCRIPTIONS PRODUCED BY VARIOUS GRAMMATICAL FORMALISMS*" pptx
Báo cáo khoa học: "CHARACTERIZING STRUCTURAL DESCRIPTIONS PRODUCED BY VARIOUS. GRAMMATICAL FORMALISMS*" pptx
... consider the structural descriptions produced by vari- ous grammatical formalisms in ~ of the complexity of the paths and the relationship between paths in the sets of structural descriptions ... CHARACTERIZING STRUCTURAL DESCRIPTIONS PRODUCED BY VARIOUS. GRAMMATICAL FORMALISMS* K. Vijay-Shanker David J. Weir Aravind K. Joshi ... of grammatical systems in computational linguistics has been focused on the weak generative capacity of grammatical forma~sm- Little attention, however, has been paid to the structural descriptions...
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Tài liệu Báo cáo khoa học: NMR structural characterization of HIV-1 virus protein U cytoplasmic domain in the presence of dodecylphosphatidylcholine micelles doc
... as a tight loop of VpUcyt, are indicated by greystripes and an open rectangle, respectively. The two helices are connected by an interhelical linker. Structural elements are denoted at thebottom ... NMR signals of residues in the tight loopare almost completely quenched by both Mn2+and16-doxylstearic acid, symbolized by the yellow colourin Fig. 10. These loop residues seen in the upper ... confor-mation is then recognized by the binding partner.Directed withdrawal of a particular conformationalsubpopulation from the equilibrium is counteracted by a continuous readjustment of the...
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Tài liệu Báo cáo khoa học: Yeast glycogenin (Glg2p) produced in Escherichia coli is simultaneously glucosylated at two vicinal tyrosine residues but results in a reduced bacterial glycogen accumulation docx
... and R I data by using theASTRAsoftware(version 4.75 , WTC; e xtrapolation by D ebye, first order) .Maltooligosaccharide patternsBacterial cells (100 mL suspension) were p ellete d by centrifugation ... chromatography(RP-HPLC)The peptides generated by either in-ge l trypsination or by cyanogen bromide cleavage and subsequent a-amylasetreatment were separated by RP-HPLC (SMART system,Pharmacia, Uppsala, ... Subse-quently, the nucleases were inactivated by heating (5 min at100 °C) and the denatured p rotein was removed by centrif-ugation. The supernatant was concentrated by filtrationusing an Amicon filter...
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Tài liệu Báo cáo khoa học: "Using Structural Information for Identifying Similar Chinese Characters" pdf
... component is represented only by “一一” in the Cangjie codes for “頸” and “勁”. The simplification makes it relatively harder to identify visually similar charac-ters by comparing the actual Cangjie ... costs can be very high. We propose methods for identifying visually similar Chinese characters by adopting and extending the basic concepts of a proven Chinese input method Cangjie. We present ... Introduction A Chinese sentence consists of a sequence of char-acters that are not separated by spaces. The func-tion of a Chinese character is not exactly the same as the function of an...
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Báo cáo khoa học: Conserved structural determinants in three-fingered protein domains pdf
... were calculated by takinginto account all 12 atoms of cystines and using the rota-tion ⁄ translation procedure developed by Kabsch [83]. Wefollowed the propositions developed by Harrison and ... by the Ly6 and Plaur genes. The analysis of sequences of diverse snake toxins, various ectodomains of the receptors that bind activin and other cytokines,and numerous gene products encoded by ... fine structural traits in com-parison with the architecture of the fingers in theTFPDs of uPAR and the ECDs of the receptors. Thelast two groups have longer loops which are oftenflanked by short...
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Báo cáo khoa học: "From route descriptions to sketches: a model for a text-to-image translator" doc
... paper deals with the automatic trans- lation of route descriptions into graphic sketches. We discuss some general prob- lems implied by such inter-mode transcrip- tion. We propose a model ... situations, verbal RDs are often accompanied by sketches, thus participating in a 2- mode representation. A sketch can also function as a route representation by itself. We will first outline some ... to translate RDs into graphic maps consisted in manually transcribing linguistic descriptions into sketches. By doing this, we encoun- tered several problems, some of which we will try to illustrate...
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Báo cáo khoa học: "UNDERSTANDING SCENE DESCRIPTIONS AS EVg~NT SIMULATIONS " pot
... modified by succeeding sentences, e.g. by listing exceptions to one's ordinary expectations of the prototype, or by providing specific values for optional items in he prototype, or by similar ... plausibility. 2. THE NATURE OF SCENE DESCRIPTIONS I have found it useful to distinguish between static and dynamic scene descriptions. Static scene descriptions express spatial relations ... the simulation. By studying cases where we judge descriptions to be implausible we can gain insight into Just what is done routinely dm'ing the understanding of scene descriptions, since...
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Báo cáo khoa học: A structural overview of the PDI family of proteins docx
... structureprovided the first structural insights into protein bind-ing by the catalytic domains of a mammalian PDI [13].In the structure, the a domain of full-length ERp57 islinked to tapasin by a disulfide ... surrounded by more mobile catalyticdomains with active site cysteines. The mobility of cat-alytic domains may be beneficial when acting uponincorrectly disulfide-bonded proteins and substrates of various ... Tennant LL, Slaby I, Lindell M,Cui DS, Kuprin S & Holmgren A (1997) Effects of bur-ied charged groups on cysteine thiol ionization andreactivity in Escherichia colithioredoxin: structural...
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Báo cáo khoa học: The structural basis for catalytic function of GMD and RMD, two closely related enzymes from the GDP-D-rhamnose biosynthesis pathway pdf
... achieved. Theresin was removed by filtration, and the solution was neutral-ized by the addition of triethylamine. Finally, water andtriethylamine were removed by lyophilization.NMR spectroscopyNMR ... including the d-rhamnose homopolymer produced by Pseu-domonas aeruginosa, called A-band O polysaccharide. GDP-d-rhamnosesynthesis from GDP-d-mannose is catalyzed by two enzymes. The first isa GDP-d-mannose-4,6-dehydratase ... of dehydratase and reductase activities exhib-ited by His6-GMD. Sugar nucleotide peaks were identified by NMR; other peaks were identified by comparison with standards.His6-GMD catalyzes the...
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Báo cáo khoa học: "Annealing Structural Bias in Multilingual Weighted Grammar Induction∗" doc
... how a structural locality bias can improve theaccuracy of state-of-the-art dependency grammar inductionmodels trained by EM from unannotated examples (Kleinand Manning, 2004). Next, by annealing ... model by setting δ to different570 0 0.1 0.2 0.3 0.4 0.5 0.6 0.7-1 -0.5 0 0.5 1 1.5δFGermanBulgarianTurkishFigure 2: Test-set F1performance of models trained by EMwith structural ... penal-ize long dependenciesless. We call this structural annealing, since we are varying the strength of asoft constraint (bias) on structural hypotheses. In structural annealing, the final objective...
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