Báo cáo khoa học: Macrocypins, a family of cysteine protease inhibitors from the basidiomycete Macrolepiota procera pot

... with Z-Ala-Ala-Asn-AMC as the substrate, while stopped assays were performed forcathepsins K, S and B using Z-Phe-Arg-AMC as the sub-strate and for cathepsin H with Arg-AMC as the substrate[6]. ... basidiomycete Macrolepiota procera, and havecharacterized some of its natural and recombinantmembers.ResultsIsolation of cysteine- protease inhibitors from M. procera Cysteine protease inhibitors ... promotersequences have a typical TATA box (TATAAAA)present at position )85, and a putative transcriptioninitiation site (CTAGTCC) at position )55, indicatingFig. 1. SDS–PAGE analysis of the natural cysteine...

Báo cáo khoa học: Channel-forming activities of peroxisomal membrane proteins from the yeast Saccharomyces cerevisiae pot

... require addition into the reaction medium of any cofactor or other bulky solute. The data of the latency determination support the notion that, similarto the mammalian peroxisomal membrane [10], the membrane ... Therefore, the overall functional organization of the yeast peroxi-somal membrane transport system may be similar tothat of the outer membrane of bacteria.Experimental proceduresStrains, media and ... than the amplitude of the channel itself. The lower trace in the right panel shows the direct transition of one of the spikes down to the fully-closedstate of the channel (marked by arrowhead).(B)...

Tài liệu Báo cáo khoa học: Post-translational cleavage of recombinantly expressed nitrilase from Rhodococcus rhodochrous J1 yields a stable, active helical form ppt

... with the appropriate twofold axis of the stainenvelope. Thus, the two possible degrees of freedom(apart from the known helical parameters) are the radial distance of the model along the dyad axis ... nitrilase band of  40 kDa. The contaminating band at60 kDa was identiﬁed as GroEL on the basis of its characteristic appearance in the micrographs. CFE, cell-free extract; MWM, molecularmass marker. ... only after the spiral has completed a full turn.In the case of P. stutzeri cyanide dihydratase, an addi-tional set of interactions across the groove at the E surface leads to termination of the...

Tài liệu Báo cáo khoa học: "DiMLex: A lexicon of discourse markers for text generation and understanding" docx

... which are traditionally treated as function words belonging to the realm of grammar rather than to the lexicon. But for a single discourse relation there is often a set of similar markers, allowing ... found a cheap bar. If one accepts these sentences as paraphrases, then the various discourse markers all need to be associated with the information that they sig- nal a concessive relationship ... realized, and the lookup yields the range of alternatives. But many markers have more semantic and pragmatic constraints associated with them, which have to be verified in the generator's...

Tài liệu Báo cáo khoa học: "TOWARDS A THEORY OF COMPREHENSION OF DECLARATIVE CONTEXTS " docx

... WITH THEIR CHECKING ACCOUNTS. FOR EACH ACCOUNT THE BANK WANTS A LIST SHOWING THE BALANCE AT THE BEGINNING OF THE PERIOD, THE NUMBER OF DEPOSITS AND WITHDRAWALS, AND THE FINAL BALANCE. THE ACCOUNTS ... "offer". From the highest level of abstraction all of them are tagged with the marker ATRANS. The procedures that parse the action verbs and the descriptive verbs are called ACTION-VERB ... checking accounts. For each account the bank wants a list showing the balance at the beginning of t1~e period, the number of deposits and withdrawals, and the final balance." Assume that...

Báo cáo khoa học: "Creating a Corpus of Parse-Annotated Questions" docx

... datarepeatParse a new section of raw dataManually correct errors in the parser outputAdd the corrected data to the training setExtract a new grammar for the parseruntil All the data has been ... Urbana-Champaign.3We use equal amounts of data from each source so as not to bias the corpus to eitherdata source.3.1 TREC Questions The TREC evaluations have become the standardevaluation ... results are also better and are com-parable to the baseline (Table 1).5.3 Ablation RunsIn a further set of experiments we investigated the effect of varying the amount of data in the parser’straining...

Báo cáo khoa học: "Generating a Table-of-Contents" pptx

... Table -of- ContentsS.R.K. Branavan, Pawan Deshpande and Regina BarzilayMassachusetts Institute of Technology{branavan, pawand, regina}@csail.mit.eduAbstractThis paper presents a method for the auto-matic ... Most of these approaches are tailored to a par-1 The code and feature vector data forour model and the baselines are available athttp://people.csail.mit.edu/branavan/code/toc.ticular domain, ... twotasks: the hierarchical segmentation of the text, and the generation of informative titles for each segment. The ﬁrst task can be addressed by using the hier-archical structure readily available...

Báo cáo khoa học: "Toward a Redefinition of Yea/No Questions" pot

... marked as true, since they are entailed. Horn called this phenomenon scalar predleation, and Gazdar {Gazdar, 1979) later used a variation as the basis for a phenomenon he termed sea/at quantity ... deny a queried member {llawaii). The affirmati,~n of an unqueried ah,'rnate value generally conveys the falsity or R's ignorance of the queried value. SA partial ord~-rin 9 may be ... negating the lowest deniable scalar. In such a denial a speaker may implicate his affirmation or ignorance of lower scalars. So, in exchanges like { 9a) , a value higher than a queried value...

Báo cáo khoa học: "Representing a System of Lexical Types Using Default Unification" pdf

... subcategorisation arguments they specify. The subcategorisation arguments of a particular category 2 are defined in its SUBCAT feature as a difference-list. Thus, the verbal hierarchy starts ... /e~list>]. HEAD: rip, TAIL: TAIL: Similarly, the instances and subtypes of trans inherit from intrans all the attributes for the subject NP and from trans the attributes for the object NP, in addition ... information as their trans type, except that the former specifies the SUBCAT For reasons of space we are only showing the parts of the lexical hierarchy that are relevant for this paper. 2Linguistic...

Báo cáo khoa học: "Implementing a Characterization of Genre for Automatic Genre Identification of Web Pages" pot

... this paper, we report a partial evaluation based on single-label classification accuracy and predictions. From a theoretical point of view, the inferential model makes a clear-cut separation ... the classification accuracy of the inferential model with the accuracy of classifiers. Two standard classifiers – SVM and Naive Bayes from Weka Machine Learning Workbench (Witten, Frank, 2005) ... inferential model is ca. 86%. An accuracy of 86% is a good achievement for a first implementation, especially if we consider that the standard Naïve Bayes classifier returns an accuracy of about...

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