Báo cáo khoa học: A new paradigm for oxygen binding involving two types of ab contacts docx

... experimental data with the aid of a computer.As a result, the pH-dependence curves for the autoxidationrate of the separated a and b chains have been analysedcompletely in terms of an Ôacid-catalysed ... the rate constants k A 0and kB0.Infact, the catalytic proton enhances the rate dramaticallyboth in the separated a and b chains, by a factor of morethan 106per mole for state A and state ... 2003 A uniﬁed picture for Hb function (Eur. J. Biochem. 270) 4051REVIEW ARTICLEHuman haemoglobin A new paradigm for oxygen binding involving two types of ab contacts Keiji Shikama1,2and Ariki...

Báo cáo khoa học: A new approach for distinguishing cathepsin E and D activity in antigen-processing organelles pdf

... Azuma T, Nakajima M, Yasuda K, HayakumoT, Mukai H, Sakai T & Kawai K (2000) Clinical signiﬁ-cance of cathepsin E in pancreatic juice in the diagnosis of pancreatic ductal adenocarcinoma. ... H, Azuma T, Takahashi T, TaggartRT, Akamine A, Ezaki M, Nakanishi H, Sakai H &Yamamoto K (1993) Isolation and characterization of recombinant human cathepsin E expressed in Chinesehamster ... activityCaD activityTAPACatE activityCaD activityTAPACatE activityCaD activity A BCFig. 5. Distribution of TAPA, CatE and CatD activity in subcellularfractions of the cell lines (A) HaCaT, (B)...

Tài liệu Báo cáo khoa học: "A New Dataset and Method for Automatically Grading ESOL Texts" pdf

... extract an error-rate in a way that doesn’t requiremanually tagged data. However, we also use anerror-rate calculated from the CLC error tags to ob-tain an upper bound for the performance of an ... training data as a separate classiﬁeris trained for each grade point.Recently, Chen et al. (2010) has proposed an un-supervised approach to AA of texts addressing thesame topic, based on a ... distribution of data and, due tooutliers, its value can be misleading, we also re-port Spearman’s correlation. The latter is a non-parametric robust measure of association which isAblated Pearson’s...

Báo cáo khoa học: A new molecular tool for transgenic diatoms Control of mRNA and protein biosynthesis by an inducible promoter–terminator cassette docx

... PCR was performed on an egfp-containing plasmid (a gift from Dr K. Apt, Martek Biosciences, Columbia,MD, USA) with sense primer SOE-3 (5¢-AAAAATCAACGCTGAACAATGGTGAGCAAAGGGCGAG-3¢) andantisense ... (Invitrogen, Carlsbad, CA, USA)by PCR using sense primer 5¢-ATCAAAACAACCAAAATGGCCAAGTTGACCAGTGC-3¢ and antisense primer5¢-GAATGCGGCCGCTCAGTCCTGCTC CTCGGCCAC-3 ¢,which introduced a NotI restriction ... of Materials Science & Engineering, Georgia Institute of Technology, Atlanta, GA, USADiatoms (Bacillariophyceae) are a group of unicellularalgae that are of enormous ecological importance,being...

Báo cáo khoa học: A new and efﬁcient method for inhibition of RNA viruses by DNA interference pptx

... anti-sense strand (5¢-ATGAGTTTTCCAGAGCAACTT-3¢), andsiRNA was synthesized using DNA templates (sense strand,5¢-AAATGAGTTTTCCAGAGCAACCCTGTCTC-3¢; anti-sense strand, 5¢-AAGTTGCTCTGGAAAACTCATCCTGTCTC-3¢) ... 5¢-CAATACTGTCTTTCTGGCCTTC-3¢, and that of s-DNA is 5¢-ATAGGCGGGAATTTTGCATC-3¢. Anti-TMV siRNA was synthe-sized using the DNA templates 5¢-AAGGGACGAGCATATGTACACCCTGTCTC-3¢ and 5¢-AAGTGTACATATGCTCGTCCCCCTGTCTC-3¢ and a ... dsDNA shows highercellular stability than dsRNA. The other advantages of AB Fig. 3. Hydrolysis of dsDNA in tobacco leaf extract and in vitrowith Dicer. (A) Autoradiogram of 10% polyacrylamide...

Tài liệu Báo cáo khoa học: A facile method for expression and puriﬁcation of the Alzheimer’s disease-associated amyloid b-peptide pdf

... 5¢-CACAACGCCACCAACCATCAGACCGATGATAGCACCCTTGTTAGAACCCAC-3¢ ;Ab- start, 5¢-GCGTAGGGTCGACATATGGACGCTGAATTCCGTCACG-3¢;Abstop, 5¢-CCTGCCGAGCTCCTATTACACAACGCCACCAACCATCAG-3¢.The PCR solution was prepared ... andusing the following primers: Aba, 5¢-ATGGACGCTGAATTCCGTCACGACTCTGGTTACGAAGTTCACCACCAGAAGCTGGTG-3¢;Abb, 5¢-GTTCACCACCAGAAGCTGGTGTTCTTC GCTGAA GACGT GGGTTCT AACAAGGGTGCT-3¢;Abc, 5¢-CACAACGCCACCAACCATCAGACCGATGATAGCACCCTTGTTAGAACCCAC-3¢ ;Ab- start, ... enzyme, and contained Aba, Abb and Abcat40 nm each, and the start and stop primers Abstart andAbstop at 600 nm each, and 200 lm each of dATP, dCTP,dGTP and dTTP. The product was separated from...

Tài liệu Báo cáo khoa học: "A Statistical Model for Unsupervised and Semi-supervised Transliteration Mining" pptx

... creates a reasonable alignment of the labelleddata from which multigram counts can be obtained.The labelled data is a small list of transliterationpairs. Therefore we use the unlabelled data ... and to use probabili-ties from unlabelled data where the labelled data issparse. This is achieved by smoothing the labelleddata probabilities using the unlabelled data probabil-ities as a ... count of non-transliterations by N.3.2 Implementation DetailsWe use the Forward-Backward algorithm to estimatethe counts of multigrams. The algorithm has a for- ward variable α and a backward variable...

Tài liệu Báo cáo khoa học: "A Gibbs Sampler for Phrasal Synchronous Grammar Induction" docx

... insert/delete sampler. A pair of adjacent nodes in a ternary rule can be re-parentedas a binary rule, or vice-versa.falls between two existing terminals whose tar-get phrases are adjacent, then any new ... expressive grammars would be a straightforward extension of our model.3 Related workMost machine translation systems adopt theapproach of Koehn et al. (2003) for ‘training’ a phrase-based translation ... optimized for MT (Chang et al., 2008).The Arabic text was preprocessed according to theD2 scheme of Habash and Sadat (2006), whichwas identiﬁed as optimal for corpora this size. Theparameters of...

Tài liệu Báo cáo khoa học: "A Modular Toolkit for Coreference Resolution" pdf

... whichuses a classical combination of tagger and chun-ker, with the Stanford POS tagger (Toutanova et al.,2003), the YamCha chunker (Kudoh and Mat-sumoto, 2000) and the Stanford Named Entity ... use of the coreference resolution as part of a larger sys-tem, but also performing qualitative error analysisusing integrated MMAX2 functionality (annotation1An open source version of BART ... enriched with classiﬁcation features by fea-ture extractors, and then handed over to a machinelearning-based classiﬁer that decides, given the fea-tures, whether anaphor and candidate are corefer-ent...

Tài liệu Báo cáo khoa học: "A Pipeline Framework for Dependency Parsing" ppt

... accuracy(RA) and leaf accuracy (LA), as in (Yamada andMatsumoto, 2003). When evaluating the result,we exclude the punctuation marks, as done in (Mc-Donald et al., 2005) and (Yamada and Matsumoto,2003).4.3 ... evaluation datasets were provided by the tagger of (Toutanova etal., 2003) (which has an accuracy of 97.2% section7023 of the Penn Treebank).4.1 Features for Action Classiﬁcation For each ... w2(as in (Yamada and Matsumoto, 2003)).The key additional feature we use, relative to (Ya-mada and Matsumoto, 2003), is that we includethe previous predicted action as a feature. Wealso add...

Xem thêm