Báo cáo khoa học: "The effect of domain and text type on text prediction quality" pptx

... inﬂuence of text type and do-main differences on text prediction quality.By training and testing our text predic-tion algorithm on four different text types(Wikipedia, Twitter, transcriptions of ... transcriptions of con-versational speech and FAQ) with equalcorpus sizes, we found that there is a clear effect of text type on text prediction qual-ity: training and testing on the same text type gave ... differences on the quality of a text prediction algorithm?” and (2) “What isthe best choice of training data if domain- and text type- speciﬁc data is sparse?”By training and testing our text prediction...

Báo cáo khoa học: The effect of zinc oxide nanoparticles on the structure of the periplasmic domain of the Vibrio cholerae ToxR protein pot

... Effect of surface concen-tration on secondary and tertiary conformationalchanges of lysozyme adsorbed on silica nanoparticles.Biochim Biophys Acta 1784, 1694–1701.29 Karlsson M, Martensson ... regulation of protein–protein interactions,cellular signal transduction and transcription of DNA[4–7]. Conformational transition, leading to peptideaggregation and the formation of amyloid ... addition of KCl and reached a maximum at 0.5 m KCl, beyondwhich further addition of KCl did not seem to haveany effect (Fig. 7). NPs have a strong destabilization effect on the structure of ToxRp....

Tài liệu Báo cáo khoa học: The effect of small molecules in modulating the chaperone activity of aB-crystallin against ordered and disordered protein aggregation pdf

... (amorphous) aggregation systemsReduction-induced aggregation of a-lactalbuminUpon addition of 1,4-dithiothreitol (DTT), aggregation and precipitation of a-lactalbumin commenced after25 min and reached ... Arg-HClin the absence of the chaperone precluded analysis of the effect of this concentration on the protectiveability of aB-crystallin.Reduction-induced aggregation of the insulin B-chainLight ... experiment, conclusions regardingthe effects of the additives on the chaperone activity of aB-crystallin were drawn based on the measured percentageprotection when both the additive and chaperone werepresent...

Tài liệu Báo cáo khóa học: The effect of mutations surrounding and within the active site on the catalytic activity of ricin A chain pptx

... addition of 100 lLof2· Kirby buffer [25] and 80 lLofH2O, and rRNA was obtained by precipitation after two phenol–chloroform extractions. Four micrograms of rRNA weretreatedwith20lL of acetic-aniline ... Electron density of RTA N122A in the vicinity of residue 122. The backbone and sidechains of the N122A substitution are shown as stereoimages in thick ball and stick and the position of the ... that of wild- type RTA. Conversion of Arg213 to either alanine oraspartate (R213A and R213D, respectively) reduced theD50(concentration giving half maximal depurination) by10-fold and over...

Tài liệu Báo cáo khoa học: "The Effect of Pitch Accenting on Pronoun Referent Resolution" ppt

... attentional salience. One determiner of whether attentional or propositional effects are dominant is the type of information provided by the accented constituent. Because nonpronominals contribute ... focus of attention. Intonational theories would be similarly hard pressed, but on grounds of information quality and efficient use of limited resources. Given the serial and ephemeral nature of ... on grounds of redundancy. To bestow an intonational marker of salience (the pitch accent) on a textual marker of salience (the pronominal) is unnecessarily redundant and especially when textual...

Báo cáo khoa học: The effect of replacing the axial methionine ligand with a lysine residue in cytochrome c-550 from Paracoccus versutus assessed by X-ray crystallography and unfolding ppt

... ligandunder alkaline conditions and in the presence of GdmHCl is different. Under alkaline conditions release of the axial ligand is postulated to arise from thedeprotonation of an ionizable group ... amounts of guanidinium hydrochloride (GdmHCl) the proteinunfolds resulting in the perturbation of a number of electronic absorption bands and the appearance in thespectrum of new ones. One of these, ... interactions (Fig. 4D). Effect of the M100K mutation on the stability of the native stateThe effect on protein stability upon introduction of aLys ligand to the heme-iron has been assessed for theM100K...

Báo cáo khoa học: The effect of heme on the conformational stability of micro-myoglobin doc

... native-like conformations.ConclusionsThe comparison of apo- and holo-lMb by MD simu-lations reveals a dramatic effect of the heme cofactor,which is seen to stabilize native Mb-like folded confor-mations ... providing details concerning intra- and intermolecular motions as a function of time.Although results of MD simulations do not always and easily translate to assessment of conformationalstability ... The effect of heme on the conformational stability of micro-myoglobinHong-Fang Ji1,2, Liang Shen1,2, Rita Grandori3 and Norbert Mu¨ller21 Shandong Provincial Research...

Báo cáo khoa học: "The Effect of Translation Quality in MT-Based Cross-Language Information Retrieval" pptx

... so degradation of rule base mainly results in word translation errors instead of syntactic errors. Thus, degradation of dictionary and rule base has similar effect on retrieval effectiveness. ... the aspect of lexical coverage. Why lack research on analyzing effect of translation quality of MT system on CLIR performance? The possible reason might be the problem on how to control the ... on dictionary-based degradation comparable to the results on rule-based degrada-tion, we degrade the dictionary so that the varia-tion interval on translation quality is similar to that of...

Báo cáo khoa học: The effect of pH on the initial rate kinetics of the dimeric biliverdin-IXa reductase from the cyanobacterium Synechocystis PCC6803 pptx

... the NADPH concentration constant at nonsat-urating (10 lm) and saturating (1 mm) levels of NADPH and varying the biliverdin concentration inthe range 0.5–10 lm. A concentration of 1 mm wasused ... the effect of pH on the kinetic parameters of a two-substrateenzyme, one substrate is held at 10 · Km(91% saturat-ing) and the variation of initial rate with the concen-tration of the second ... of pH on kcatwith NADPH ascofactor reveals a pK of 5.4 that must be protonated for effective catalysis.Analysis of the effect of pH on kcat⁄ KmNADPHidentiﬁes pK values of 5.1 and 6.1...

Báo cáo khoa học: The effect of HAMP domains on class IIIb adenylyl cyclases from Mycobacterium tuberculosis pptx

... theability of the HAMP domain region to regulate AC activity.The effect of the HAMP domain on the CHD of Rv1319cwas much less pronounced, supporting the earlier notion of a distinct individuality of ... HAMP domain function in thecontext of mycobacterial class IIIb ACs. The isolated CHDs of all four isoforms were puriﬁed and had AC activityin vitro. Inclusion of the N-terminal HAMP-regionenhanced ... construction of chimeras in which the HAMP-domains (amino acids 279–332) were swapped between Rv1319c and Rv3645.Forconstructs containing only the 23 amino acids long linkerbetween HAMP and...

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