Tài liệu Báo cáo khoa học: "Methods for the Qualitative Evaluation of Lexical Association Measures" doc

... The signiﬁcance of differences be-tween the AMs is addressed in section 6.2 The Qualitative Evaluation of Association Measures2.1 State -of -the- artA standard procedure for the evaluation of ... Examination of 50% of the datain the SLs leads to identiﬁcation of between 75%(AdjN) and 80% (PNV) of the TPs. (ii) For the ﬁrst 40% of the SLs, and lead to the worstresults, with outperforming ... Characteristics of the set of candidate dataemployed for collocation identiﬁcation: (i) the syntactic homogeneity of the base data, i.e.,whether the set of candidate data consists only of adjective-noun,...

Tài liệu Báo cáo khoa học: Looking for the ancestry of the heavy-chain subunits of heteromeric amino acid transporters rBAT and 4F2hc within the GH13 a-amylase family ppt

... b-strandsb2, b3, b4 and b8 of the (b ⁄ a)8barrel domain, and for rBAT also with the short stretch near the C-terminus of domain B [9,19]. From the sequence–structure point of view, the basic difference ... the lack of domain B protruding out of the TIM barrel in the place of loop 3 connecting the b3-strand to the a3-helix [9,21]. Sharing domain B by rBATs andGH13 enzymes, and especially the sequence of ... all of them (Fig. 2), CSR III (b5-strand with the glutamate acting as a proton donor) is not easily iden-tiﬁable, even for the enzymatically active GH13 mem-bers [13]. Therefore, one of the...

Tài liệu Báo cáo khoa học: Enzymes for the NADPH-dependent reduction of dihydroxyacetone and D-glyceraldehyde and L-glyceraldehyde in the mould Hypocrea jecorina doc

... then used for furtheranalysis.In the reductive reaction, the Michaelis–Menten con-stant Km for DHA was 1 mm, and the Km for NADPH was 50 lm. The Vmaxwas estimated at2400 nkat per mg of ... USA)three times for 30 s. The mixture was then centrifuged inan Eppendorf microcentrifuge at full speed for 25 min, and the supernatant used for the analysis. The protein content of the extract ... genomic DNA. For that rea-son, we ampliﬁed the open reading frame from cDNA. For the second of the two potential glycerol dehydro-genases, we predicted no introns and therefore ampli-ﬁed the open...

Tài liệu Báo cáo khoa học: Evidence for interactions between domains of TatA and TatB from mutagenesis of the TatABC subunits of the twin-arginine translocase docx

... in the presence of substrate and a protonmotive force [23]. On the basis of these studies, it hasbeen proposed that binding of substrate to the TatBCsubunits triggers the recruitment of the ... important to test the effects of introducing struc-tural rearrangements of the TM spans of these subunits.It has not been established whether these TM spanssimply anchor the amphipathic regions ... parallel with the Sec system, it is responsible for the export of a subset of proteins into the periplasm, outer membrane orextracellular medium, and the primary deﬁning attrib-ute of the system...

Tài liệu Báo cáo khoa học: "NLP for Indexing and Retrieval of Captioned Photographs" pot

... in the caption;and (ii) triples of the form (Argument', Relation,Argument2), where Relation is the name of the relation and Argument, are its arguments. The arguments have the form ... the photographs. Therefore, most of the complexity of the written text is eliminated,while its meaning is retained in an elegant andsimple way. The relational facts that are extractedare of ... extractedare of the form: ARG1-RELATION-ARG2 andthey are used as indexing terms for the crime scenevisual records. In these triples, the argumentsmay be simple or complex noun phrases, whereas the relations...

Tài liệu Báo cáo khoa học: nsights into the reaction mechanism of glycosyl hydrolase family 49 Site-directed mutagenesis and substrate preference of isopullulanase doc

... lost the activity for pullulan ( 0.4% of the wild-type IPU) and the activity for p anose w as almost undetectable ( 0.1%) under the given conditions. The W31F enzyme had only 38% activity for ... located in the vicinity of the active siteand could form a binding site for a glucosyl unit i n subsite)1 (Fig. 4B). Together with the observations from the site-directed mutagenesis, Trp402 of IPU ... Gly426 of IPU, respectively. Therefore, evenif the a-( 1ﬁ6)-linked glucose units enter to the active cleft of IPU as shown in Fig. 4 A, it would be impossible for the substrate to be retained in the...

Tài liệu Báo cáo khoa học: "Inferring Selectional Preferences from Part-Of-Speech N-grams" doc

... Proceedings of the 49th Annual Meeting of the Association for Computational Linguistics, Portland, OR, 2011, 1556–1565. 386Proceedings of the 13th Conference of the European Chapter of the Association ... and the second NN will be the direct object (dobj) of the VB. This prediction is not 100% reliable. For example, the initial 5-gram of The big boy ate meat pie has the same POS 5-gram as before. ... evaluated. If the model assigns only one of the words a probability, prefer it, based on the assumption that the unknown probability of the other word is lower. If the model assigns the same...

Tài liệu Báo cáo khoa học: Role for nectin-1 in herpes simplex virus 1 entry and spread in human retinal pigment epithelial cells docx

... products of the expected size for all thesereceptors were detected. To further analyze the cellsurface expression of gD receptors, ﬂow cytometry wasperformed. As nectin-2 does not mediate entry of ... responsible for the content or functionality of any supplementarymaterial supplied by the authors. Any queries (otherthan missing material) should be directed to the corre-sponding author for the ... [26].In an effort to determine a mechanism for HSV-1 inretinal damage, speciﬁcally in terms of its ability toenter the cells of the retina, the present study used reti-nal pigment epithelial (RPE)...

Tài liệu Báo cáo khoa học: Evidence for noncooperative metal binding to the a domain of human metallothionein ppt

... constants of divalent metal ions for the a domain are larger than those for the b domain.Further interpretation of these data resulted in the proposal of positively cooperative metal binding as the primary ... Sequence of the a domain of rhMT-1a, showing the connectivities of the four divalent metal cations to the 11 cystei-nyl sulfurs. The numbering of the cysteines(1–11 starting from the N-terminus) ... right side of Fig. 3 are the deconvoluted spectra showing the mass and identity of the species detected. The deconvoluted spectra on the right side of Fig. 3 clearly show the formation of inter-mediate...

Tài liệu Báo cáo khoa học: Progress for dengue virus diseases Towards the NS2B–NS3pro inhibition for a therapeutic-based approach ppt

... that the region 40–66 of the cofactor is important in the folding of the protein and that the C-terminal part of the cofactor,which is absent in the truncated form, directly interactswith the ... via the histidine to the serine. The transfer of the Ser Oc proton to the histidine converts the serineinto a strong nucleophile for the attack on the peptidylcarbonyl of the substrate. The ... processing of the viral proteins, most of the NSproteins associate with the 3¢-UTR of viral RNA toform a replication complex for RNA synthesis [2]. The association of protein C with genomic RNA on the cytosolic...

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