Tài liệu Báo cáo khoa học: "Can you summarize this? Identifying correlates of input difficulty for generic multi-document summarization" docx

... Proceedings of ACL-08: HLT, pages 825–833, Columbus, Ohio, USA, June 2008. c 2008 Association for Computational Linguistics Can you summarize this? Identifying correlates of input difficulty for generic ... define a suite of features cap- turing aspects of the topicality cohesiveness of the input (Section 3) and relate these to system perfor- mance, identifying...

Ngày tải lên: 20/02/2014, 09:20

Ngày tải lên: 17/02/2014, 05:20

... addition of CoA solution). The K m value for CoA of the OGOR enzyme is reported to be 80 lm [30]. Thus, decarboxyl- ation of 2-oxoglutarate can proceed as a result of CoA contamination of the acetyl-CoA ... A 340 as a result of NADH oxidation was measured. One unit of enzyme activity was defined as the reduction of 1 lmolÆmin )1 of NADH (corresponding to the carboxylation...

Ngày tải lên: 16/02/2014, 09:20

... fragmentation of their nuclei. The percentage of apoptotic cells was calculated as the number of apoptotic cells divided by the total number of cells counted. A minimum of 500 cells were counted for each ... X (2009) ATP-binding domain of heat shock protein 70 is essen- tial for its effects on the inhibition of the release of the second mitochondria-derived activator of...

Ngày tải lên: 16/02/2014, 09:20

... robust synthesis of pantothe- nate from low amounts of pantoate [9]. Here, we report the results of the structural studies of the panto- ate-bound form of the N-terminal domain of E. coli PS (nPS). ... occupy allowed regions of the Rama- chandran map [32,33]. Comparison of the monomer of the substrate-free form of E. coli PS [13] with the monomers of nPS in the pantoate-...

Ngày tải lên: 16/02/2014, 09:20

Ngày tải lên: 17/02/2014, 05:20

... distance of 3.4 A ˚ for the major conformation and 3.5 A ˚ for the minor APV conformation. Val50¢ also lost hydrophobic interac- tions with the THF group of APV. The minor confor- mation of APV ... one conformer contained an unusual second binding site for DRV [30]. Moreover, a similar asymmetric arrangement of Asp25 ⁄ 25¢ with a single conformation for Asp25 and two conformat...

Ngày tải lên: 18/02/2014, 04:20

... t-PA and MMPs, insofar as these clinical correlates may be especially important for stroke therapy in humans. Thrombolysis with t-PA is logical for acute ischemic stroke in terms of dissolving clots ... and Hansen et al. [58] for full and detailed reviews for those opposite actions of VEGF). Furthermore, there may also be feedback loops because MMPs can process pro-forms of ma...

Ngày tải lên: 18/02/2014, 11:20

... with 100 l M CoCl 2 for 2 h and then with 10 lM forskolin for a further 24 h. (C) Morphology of cells. (D) Immunocytochemistry of GFAP levels. (E) Quantification of the percentage of GFAP-expressing cells ... its AB C D Fig. 1. Forskolin induces differentiation of C6 glioma cells. C6 cells were incubated with or without forskolin for 24 h or for the time indi- cated. (A) Morp...

Ngày tải lên: 18/02/2014, 13:20

... Rt_cal (phút) Profile 1A 733 0 0.24 86 82 0.95 Profile 1B 1126 15 0.50 22 25 1.12 Profile 2A 688 15 0.30 65 67 1.03 Profile 2B 1244 10 0.50 43 41 0.94 Profile 3A 946 10 0.40 56 51 0.92 Profile 3B (có ... C168.3*10 C273*5 C219.5*5 S120*10 C219.5*5 HEB120 C219.5*5 HEB120 S200*5 PROFILE 1 C139.7*10 PROFILE 2 PROFILE 3 PROFILE 4 PROFILE 5 Bảng 1. Các thông số của cột thí nghiệm Tên mẫu Hệ số...

Ngày tải lên: 18/02/2014, 13:20