... the description. For the second type of question, human examinees would search their knowledge base for the description of each of four candidate terms. Then they would choose the candidate term ... token ring In the autumn of 1999, out of 80 questions, the num- ber of the first and second types were 22 and 18, re- spectively. 4.3 Implementing a QA system For the...
Ngày tải lên: 20/02/2014, 18:20
... in the edit distance in this section, the cost of substi- tutions is less than that of insertions and deletion- s. Here, we assume that the cost of substitutions is based on the similarity of the ... transcription. The features used for the scoring model are as fol- lows: • The Edit Distance (ED): The edit distance is the linear combination of the weights...
Ngày tải lên: 07/03/2014, 18:20
Báo cáo khoa học: Arginine-induced conformational change in the c-ring ⁄a-subunit interface of ATP synthase ppt
... significant conformational change within the structure of the ion-binding site upon contact with subunit a. This conformational change is dependent on the presence of the conserved arginine in the stator. ... formation by the aN230C ⁄ cT67C cysteine pair. To further investigate the influence of the stator arginine on the conformational changes of the c sub- unit,...
Ngày tải lên: 16/03/2014, 06:20
Báo cáo khoa học: "SOLUTIONS TO ISSUES DEPEND ON THE KNOWLEDGE REPRESENTATION" ppt
... thr~t the u.~efulness of these remarks depends on The degree one is aware of the knowledge representatLon that underlie.s the solution suggested, For ex~Mple~ in the case of the last ... ship, Then "London ship" is four ways ,~Mbifuous~ ~e~ning: (i) the ship London~ (2) London (ho~e port) ships, (3) l.ondon (depr~r~-ur~z par-X) ~hips ~nd (4) Lond...
Ngày tải lên: 24/03/2014, 01:21
Báo cáo khoa học: "Automatic Text Summarization Based on the Global " ppt
... conjecture and assertion), (5) rhetorical rela- tion (such as reason and example), and (6) position of sentence in the whole text. Most of these are ex- tracted by a shallow processing of the ... texts. The browser has the functionality of summarization and content-based retrieval of tagged documents. This paper focuses on summarization based on this system...
Ngày tải lên: 31/03/2014, 04:20
Tài liệu Báo cáo khoa học: 3T3-L1 adipocyte apoptosis induced by thiazolidinediones is peroxisome proliferator-activated receptor-c-dependent and mediated by the caspase-3-dependent apoptotic pathway doc
... cell, the activation of PPARc is linked to the induction of apoptosis. It has been suggested that PPARc is involved in the suppression of cell proliferation and promotion of apoptosis in endothelial ... adipocytes, the translo- cation of Bax from the cytoplasm into the mitochon- dria, cytochrome c release and cleavage of caspase-3 were all observed (Fig. 4B–D). To...
Ngày tải lên: 16/02/2014, 09:20
Tài liệu Báo cáo khoa học: Golgi reassembly stacking protein 55 interacts with membrane-type (MT) 1-matrix metalloprotease (MMP) and furin and plays a role in the activation of the MT1-MMP zymogen pdf
... furin-mediated activation of transmem- brane substrates. The activation of ADAM17 by furin [68] and our observation of an interaction between GRASP55 and the ICD of ADAM17 (C. Roghi and L. Jones, unpublished ... MT1-MMP and GRASP55 in HT1080 cells by video microscopy (Fig. 3). GRASP55 expression induces formation of a MT1-MMP–furin complex The interaction on the on...
Ngày tải lên: 18/02/2014, 04:20
Tài liệu Báo cáo khoa học: 2,5-diamino-6-ribitylamino-4(3H)-pyrimidinone 5¢-phosphate synthases of fungi and archaea docx
... analysis of the signal integrals reveals rapid consumption of the b anomer and less rapid con- sumption of the a anomer of substrate 3. All data are in line with the hypothesis that the b anomer ... catalysing the transfer of deuterium from the 4(R) position of NADPH to the 1¢ (S) position of the substrate. These results are in agreement with the known thre...
Ngày tải lên: 18/02/2014, 18:20
Tài liệu Báo cáo khoa học: Changes in purine specificity in tandem GAF chimeras from cyanobacterial cyaB1 adenylate cyclase and rat phosphodiesterase 2 pptx
... spe- cificity. The expectation of this hypothesis was fulfilled by construct I. A cyaB1 tandem GAF domain with replacement of this segment by the rPDE2 region, which comprised only 23% of the residues of the cyaB1 ... difference between the exchange of the N-terminal region Ile250 to Gly267 (construct I) and the T258 ⁄ L259 couple (construct VIII) was the complete ab...
Ngày tải lên: 19/02/2014, 02:20