... the utterances of others, AMBER models the learning of generation strategies, rather than strategies for understanding language. Selfridge's and Reeker's models differ from other language ... problem of recovering from errors. The current research extends this idea even further, since all of AMBER'S learning strategies operate through a process of error recove...
Ngày tải lên: 17/03/2014, 19:21
... a model of how to say something, not of what to say. When it arrives at a decision point on what to say, GEMS makes a random choice. Hence, GEMS is not a complete model of the activity of ... meaning of a number of English sentence types are briefly described. I. Constructing the meaning of sentences Most work on natural language generation has been concerned with...
Ngày tải lên: 18/03/2014, 02:20
Tài liệu Báo cáo " The meaning and structure of a science fiction story: a sysyemic functional analysis " doc
... the cohesive harmony of the text; to a summary of the context of situation of the text in terms of the three contextual parameters: field, tenor and mode. 2. The Context of the Chosen Text ... first time. The “what is going on?” of the text is well represented in the experiential component of meaning. From the point of view of transitivity, of the 36 clauses 17...
Ngày tải lên: 12/02/2014, 20:20
Tài liệu Báo cáo khoa học: Animal models of amyloid-b-related pathologies in Alzheimer’s disease docx
... of inheritance, account for < 2% of all AD cases. Onset is most often before 65 years of age, and the penetrance is nearly always complete. The purifica- tion and partial sequencing of Ab from ... 1391 Transgenic animal models Models devoid of any disease-causing APP mutations Animal models expressing wild-type (wt) human APP are of interest because the great majority of spo...
Ngày tải lên: 16/02/2014, 09:20
Tài liệu Báo cáo khoa học: Catalytic mechanism of SGAP, a double-zinc aminopeptidase from Streptomyces griseus pdf
... hydro- lysis of Leu-pNA. The enthalpy of ionization, DH ion ¼ 30 kJÆmol )1 , was calculated from the slope of the line. A B Fig. 4. Inhibition of SGAP by fluoride. (A) A representative plot of the Lineweaver–Burk ... detailed sequence of zinc- coordination changes during catalysis and the mode of inhibition of anions such as fluoride and phosphate. Experimental procedures Puri...
Ngày tải lên: 19/02/2014, 02:20
Tài liệu Báo cáo khoa học: Crystal structure of a subtilisin-like serine proteinase from a psychrotrophic Vibrio species reveals structural aspects of cold adaptation docx
... homology model of Vibrio proteinase based on the known structure of proteinase K (PDB ID: 1IC6) [35] was used as a search model. The structure was refined with refmac5 [74]. A ran- dom set of 10% of ... encompasses amino acids 140–420 of the 530 amino acid prepro-enzyme [34]. The model was refined at a resolution of 1.84 A ˚ with an R-factor of 14.1% and an R free value of...
Ngày tải lên: 19/02/2014, 16:20
Tài liệu Báo cáo khoa học: "Translation Model Adaptation for Statistical Machine Translation with Monolingual Topic Information" doc
... the “bag -of- words” assumption that the or- der of words can be ignored, these methods model the text corpus by using a co-occurrence matrix of words and documents, and build generative model- s ... approach to translation model adaptation in detail. 3.1 Hidden Topic Markov Model During the last couple of years, topic models such as Probabilistic Latent Semantic Analysis (Hof-...
Ngày tải lên: 19/02/2014, 19:20
Tài liệu Báo cáo Y học: Kinetic study of sn-glycerol-1-phosphate dehydrogenase from the aerobic hyperthermophilic archaeon, Aeropyrum pernix K1 potx
... ranges from 90 to 105 °C. Most of the proteins from A. pernix are expected to be active at high temperature. The g lycerol dehydrogenase gene in A. pernix K1 from the d atabase provided by National ... was isolated from the cultivated cell of A. pernix by the method of Meade et al.[10]. Correspondence to K. Ishikawa, The Special Division for Human Life Technology, National I...
Ngày tải lên: 22/02/2014, 04:20
Báo cáo khoa học: Molecular mechanisms of the phospho-dependent prolyl cis ⁄ trans isomerase Pin1 docx
... spectrum of the triply phosphorylated SRSRpT 212 PpS 214 LPpT 217 PPTR peptide of Tau. The cis conformation for the Pro219 is below the limit of detection. Upon addition of a catalytic amount of Pin1, ... populations of the cis conformer. Finally, we review the data on the possibility of alternative modes of substrate binding and the complex role that Pin1 plays in the degrada...
Ngày tải lên: 07/03/2014, 05:20
Báo cáo khóa học: Chaperone activity of cytosolic small heat shock proteins from wheat pptx
... a recipient of a National Institutes of Health Postdoctoral Fellowship. B. D. was supported by NSF BB1- 9974819. We thank Drs Kim Giese and Kenneth Friedrich for critical reading of the manuscript. References 1. ... understanding of sHsp substrate interactions will require not only considera- tion of substrate binding sites and binding interactions, but also the dynamics of the...
Ngày tải lên: 07/03/2014, 15:20