Báo cáo khoa học: "Computational structure of generative phonology and its relation to language comprehension " pdf

... Computational structure of generative phonology and its relation to language comprehension. Eric Sven Ristad* MIT Artificial Intelligence Lab ... thought of as com- putations. The goal of language comprehension is to construct structural descriptions of linguistic sensations, while the goal of generative theory is to enumerate all and ... idea of...

Ngày tải lên: 31/03/2014, 18:20

... a given total flux is obviously equivalent to maintaining a given rate of biomass production at a minimum of the total flux. Insofar, the principle of maximal biomass production is a special case of ... oxidative p entose phosphate pathway had to be reversed to maintain the target fluxes. Then, the NADPH needed to drive the reactions of the o xidative pathway into a backwards d...

Ngày tải lên: 07/03/2014, 15:20

... Generalized Encoding of Description Spaces and its Application to Typed Feature Structures Gerald Penn Department of Computer Science University of Toronto 10 King's College Rd. Toronto M5S 3G4, ... Description languages typically need to bind variables to various substructures of a TFS, , and then pass those variables outside the substructures of where they can be...

Ngày tải lên: 08/03/2014, 07:20

... correlation sfromGiminotoCaminoprotons. CNH 2(i) and CNH 2(e) refer to the internal (H-bon ded) and external (free) amino p roton s of the cytosine base. Fig. 3. (H8/H6)–H1¢ cross-peak region of ... featu res of both A and BDNA. Possible implications of this on the topological restrictions of 2¢,5¢ DNA, and its rejection by nature, are discussed. Materials and methods...

Ngày tải lên: 16/03/2014, 18:20

... localization of cystatin F, its restricted and readily regulated expres- sion [18], selective and not too potent inhibition of cathepsins are all in favor of the active role of cystatin F in processes of ... Higher dithiotreitol concentrations than previously reported [12] were needed to restore monomers and inhibi- tory activity under nondenaturing conditions. Loss of i...

Ngày tải lên: 19/02/2014, 17:20

... use of selective inhibitors as convenient tools to study the spe- cificity of the somatic form of ACE. Thus, with this approach, the catalytic property of each domain towards the hydrolysis of ... identification of a C-domain-specific inhibitor, RXPA380 [13], of human ACE may provide such an alternative strategy for studying inhibitor and substrate selectivity of any form of...

Ngày tải lên: 16/03/2014, 13:20

... Crystal Screen I by Hampton Research. Optimization of the molec- ular weight of poly(ethylene glycol) and its concentration, together with pH, led us to the final crystallization condi- tion of 7.5% poly(ethylene ... Kruus 2 , Juha Rouvinen 1 and Nina Hakulinen 1 1 Department of Chemistry, University of Eastern Finland, Joensuu, Finland 2 VTT Technical Research Centre of Fi...

Ngày tải lên: 14/02/2014, 18:20

... according to the following equation: B z ¼ B i À l j r j where B z is the normalized B factor, B i is the B factor of atom i, l j is the mean B factor (excluding water molecules and peptide atoms) and ... average atomic B factors for importin-a in the structure are 32.1 A ˚ 2 for main-chain atoms, 35.7 A ˚ 2 for side-chain atoms and 33.8 A ˚ 2 overall (3244 atoms). For the pep- ti...

Ngày tải lên: 14/02/2014, 19:20

... Kyoto, Japan 3 Department of Chemistry and Biotechnology, Graduate School of Engineering, Tottori University, Japan 4 Department of Biomedical Science, Institute of Regenerative Medicine and Biofunction, ... (Fig. 3A). Three of the ligands, OD2 of Asp165, NE2 of His79 and NE2 of His169, formed an equatorial plane. The other protein ligand, NE2 of His31, bound to the...

Ngày tải lên: 14/02/2014, 22:20

... Arg100 forms hydrogen bonds with two of its side chain nitrogen atoms. Its N e atom and an N g atom bind the scissile 3-phosphate of phytate, and the other N g atom fixes Tyr249 A BC Tyr249 Thr292 Thr292 Asp291 Asp291 His290 His290 Arg100 Arg100 Arg28 Arg28 Thr31 Thr31 Asn209 Asn209 Arg24 Arg24 1 1 2 2 3 3 4 4 5 5 6 6 Fig. ... Comparison with the structures of the related enzymes...

Ngày tải lên: 16/02/2014, 09:20