Báo cáo khoa học: Macromolecular NMR spectroscopy for the non-spectroscopist: beyond macromolecular solution structure determination potx

Báo cáo khoa học: H NMR study of the molecular structure and magnetic properties of the active site for the cyanomet complex of O2-avid hemoglobin from the trematode Paramphistomum epiclitum pdf

... to the iron and positioned toprovide the H-bond to the bound cyanide, and byimplication, to the bound O2in the reduced form in eachof the three globins. The extensive sequence homology for ... (1996) Solution 1H NMR structure of the heme cavity in the low-aﬃnity state for the allosteric monomeric cyano-met hemoglobins from Chironomusthummi thummi. Comparison to the crystal structure. ... of the strengths of dipolar interactions in solution with the alternate crystal structures of methemo-globin establish that the solution structure of wild-type Hbmore closely resembles the...

Tài liệu Báo cáo khoa học: Pathways and products for the metabolism of vitamin D3 by cytochrome P450scc docx

... an explanation for hydroxylation at C22rather than C23. More likely, the difference inreported structures is associated with the collectionand interpretation of the NMR data. Their spectrawere ... responsible for the content or functionality of any supplementarymaterials supplied by the authors. Any queries (otherthan missing material) should be directed to the corre-sponding author for the ... determining the substrates from which they arose by the action ofP450scc, as well as the products that they gave rise to.This revealed both the major and minor pathways for the metabolism of vitamin D3...

Tài liệu Báo cáo khoa học: "Incorporating Context Information for the Extraction of Terms" pdf

... 1996), incorporating information gained from the textual context of the candidate term. 2 Context information for terms The idea of incorporating context information for term extraction came ... word units in that they cannot be freely modified" (Sager, 1978). Therefore, information from the modifiers of the candidate strings could be used in the pro- cedure of their evaluation ... cell carcinoma. There are cases where the verbs that appear with terms can even be domain independent, like the form called of 501 the verb to call, or the form known of the verb to know,...

Báo cáo khoa học: YidC is required for the assembly of the MscL homopentameric pore potx

... impact on the level of the MscL–HA complex, suggesting that the Sec tran-slocon is dispensable for the oligomerization of the MscL subunits.DiscussionWe have analysed the requirements for targeting,membrane ... distance to the plane of the lipid bilayer. In contrast, position 68, which wasused in the earlier study [13], is located adjacent to the centre of the pore-forming TM1. It is thereforeconceivable ... is critical for assembly of the ATP synthase subunits rather than their individualinsertion into the membrane [26].If neither YidC nor the Sec machinery is absolutelyrequired for membrane...

Báo cáo khoa học: " An Input Device for the Harvard Automatic Dictionary" pot

... columns. For example, 0010011 is defined as a token for the Cyrillic letter Й. The symbols circled in the "Lower Case" column are the normal correspondents of the tokens. For example, ... defined as a token for Й in the ranked code, it is nor- mally a token for the semi-colon. Therefore, since the output equipment has not been modified, Cyrillic material in the ranked code still ... to the Univac I. The modified device is performing satisfactorily in the compilation and experimental operation of the Harvard Automatic Dictionary. THE PROPERTIES of a given automatic information-processing...

Báo cáo khoa học: "A Formula Finder for the Automatic Synthesis of Translation Algorithms" docx

... encountered, the program specifies the truth values of the variables in Dr for the given values of i and j. The program then evaluates the truth value of Dr in terms of the truth values of the ... lectively incrementing the Xk and Yk registers. C. THE OPERATION OF THE FORMULA SYNTHESIZER The input to the final machine program shown in Fig. 4, called formula synthesizer, is the set of tally ... Certain information is therefore not reflected in the algorithm: in the former case the configuration was not encountered, in the latter case it was encountered and found to have the value...

Báo cáo khoa học: "QARLA:A Framework for the Evaluation of Text Summarization Systems" pdf

... that the summary is useless. The issue is, therefore, how to ﬁnd informativemetrics, and then how to combine them into an op-timal single quality estimation for automatic sum-maries. The most ... that breaks the universal quantiﬁer conditionover x.We have to look, then, for an alternative for- mulation for K. The best K should minimiseQUEEN(a), but having the quality of the modelsas ... increasing the similarity of the peers to the models (the x(m, a) factor in the in-equality) or decreasing the similarity between au-tomatic summaries (the x(a, a) factor in the in-equality)....

Báo cáo khoa học: "Semi-supervised Training for the Averaged Perceptron POS Tagger" potx

... is the data and their selection(including the selection of the way they are auto-matically tagged) that makes all the difference. The following “parameters” of the (unsuper-vised part of the) ... annotated data for the esti-mation of the weight coefﬁcients α. The train-ing algorithm is very simple—only integer num-bers (counts and their sums for the averaging) areupdated for each feature ... n is the number of features, αiis the weight coefﬁcient of the ithfeature and φi(C, T )is the evaluation of the ithfeature for context Cand tag T . In the averaged perceptron, the val-ues...

Báo cáo khoa học: "Abstracts of Papers for the 1963 Annual Meeting of the Association for Machine Translation and Computational Linguistics" pptx

... distance from an attribute to the structure exceeds the distance from the head to the structure, and in exocentric structures that the distances from each constituent to the structure are equal. Representations ... an analysis of the written form. This determination depends upon the ability to deter- mine the number of graphic syllables in the word. It is natural, then, to speculate as to the nature of ... position with the final c. The final e in compounds also serves to identify the forms that are generally split off from the rest of the word. A thorough analysis is made of the accuracy of the rules...

Báo cáo khoa học: "Multilingual Multiplatform Architecture for the development of Natural Language Voice Services" ppt

... areresponsible (among other factors) for the behaviour of the system during the dialogue. The Describer also defines different "squeletons" for the rest of the modules of the application, ... of the Kernel. The Linguistic Kernel contains the independent knowledge of the system, related to the dialogue management. The rest of the configurable modules are adjusted to the designof the ... abstract dialogue forms, as in the case of the semantic parsing these could bedialogue labels. These labels have theircorrespondent utterance forms in the outputcontent for con each language....

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