Tài liệu Báo cáo khoa học: "A Selectionist Theory of Language Acquisition" docx

... inadequacies of the previous approaches to language acquisition, we will pro- pose a theory that aims to meet language learn- ability and language development conditions simul- taneously. Our theory ... the actual process of language acquisition is no more remarkable than generic psychological mod- els of learning. The selectionist theory, if correct, show an example of the interaction between ... A Selectionist Theory of Language Acquisition Charles D. Yang* Artificial Intelligence Laboratory Massachusetts Institute of Technology Cambridge, MA 02139...

Tài liệu Báo cáo khoa học: A functional polymorphism of apolipoprotein C1 detected by mass spectrometry docx

... vivo.Known variants of the ApoC1 gene are limited to un-translated regions of the gene, synonymous mutations of the coding sequence and a number of variants of theintron regions of the gene (NCBI ... dif-ferent proteins often give peaks of unequal intensitybecause of unequal rates of biosynthesis, utilization, ordegradation. Variants of TTr that are associated withpathophysiology often show unequal ... comparison of m ⁄ z values with those of knownplasma proteins, Edman degradation of the entire sam-ple with observed removal of mass appropriate for theexpected N-terminal residue of each component,and...

Tài liệu Báo cáo khoa học: A novel type of highly negatively charged lipooligosaccharide from Pseudomonas stutzeri OX1 possessing two 4,6-O-(1-carboxy)-ethylidene residues in the outer core region ppt

... B,O-3 and O-4 of residue C, O-3 of residue D,O-4andO- 6of residues E and F, O-6 of residue G, O-5 and O-4 of residueL,whereasI was a terminal residue. In the high ﬁeld region of the spectrum ... absence of anomericsignals from GlcN I and GlcN II of Lipid A, the lack of pyruvate methyl groups, as a consequence of the cleavage of the ketal group under acid treatment, and the presence of singlet ... theunderstanding of adaptive chemical alterations of theouter membrane of P. stutzeri OX1 as a consequence of its exposure to solvents, which has already been docu-mented in other cases [1,8,9]. Most of...

Tài liệu Báo cáo khoa học: A kinetic model of the branch-point between the methionine and threonine biosynthesis pathways in Arabidopsis thaliana doc

... theactivating interaction of AdoMet with TS may attenuatethe changes in the ﬂux of threonine due to a modiﬁcation of the level of AdoMet. Indeed, upon an increase in the level of AdoMet, TS is activated ... independent of what happens on the cystathionineside. The Phser branch-point combines the divergence of two ﬂuxes (ﬂuxes of cystathionine and threonine) with theconvergence of two ﬂuxes (ﬂuxes of Phser ... absence and presence of a saturating concentration of AdoMet, respectively. K1K2is the product of the bindingconstants for the association of the ﬁrst and the secondmolecule of AdoMet with the...

Tài liệu Báo cáo khoa học: A possible role of mitochondria in the apoptotic-like programmed nuclear death of Tetrahymena thermophila Takashi Kobayashi and Hiroshi Endoh docx

... Leary JH III & Evans DL (2000)Role of nonspeciﬁc cytotoxic cells in the induction of programmed cell death of pathogenic protozoans: Parti-cipation of the Fas ligand-Fas receptor system. ... possible role of mitochondria in the apoptotic-likeprogrammed nuclear death of Tetrahymena thermophilaTakashi Kobayashi and Hiroshi EndohDivision of Life Science, Graduate School of Natural Science ... antiapoptoticmembers of the Bcl-2 family proteins regulate loss of mitochondrial inner membrane potential, which resultsin the release of these apoptogenic factors [1,10]. Theinvolvement of mitochondria...

Tài liệu Báo cáo khoa học: "A Comprehensive Dictionary of Multiword Expressions" doc

... indication of the syntactic flexibility of entry expressions (i.e., possibility of internal modification of constituent words) of entry expressions. In section 2, we outline the main features of ... available, presumably because of the difficulty of extracting correctly without any human insight. Recognizing the crucial importance of such expressions, one of the authors of the current paper began ... proper solution of idiosyncratic multiword expressions (MWEs) is one of the most difficult and intriguing problems in NLP. In principle, the nature of the idiosyncrasy of MWEs is twofold: one...

Tài liệu Báo cáo khoa học: "A Succinct N-gram Language Model" ppt

... by theword id of wn+1. The boundary of the region is de-termined by the pointer of the next N-gram in the1The compact representation of the ﬂoating point is out of the scope of this paper. ... (lg(x)=log2(x))1-gram 2-gram 3-gramprobabilityback-offpointerword idprobabilityback-offpointerword idprobabilityback-offpointerFigure 1: Data structure for language modeland LOUDS succinctly represents ... withblock compression. N-gram language models of 42.65GB were compressed to 18.37GB. Finally,the 8-bit quantized N -gram language models arerepresented by 9.83GB of space.Table 2 shows the compression...

Tài liệu Báo cáo khoa học: A unique variant of streptococcal group O-antigen (C-polysaccharide) that lacks phosphocholine ppt

... Sweden;2Department of Medical Microbiologyand Immunology, University of Aarhus, DenmarkStreptococcus mitis strain SK598, which represents a sub-group of biovar 1, possesses a unique variant of theC-polysaccharide ... cell wall of all strains of Streptococcus pneumoniae and in some strains of S. mitis.This new variant lacks the choline methyl groups in contrastto the previously characterized forms of C-polysaccharide,which ... [1]. Reaction with both of themonoclonals was observed for all strains of S. pneumoniaeandforamajorityofS. mitis biovar 1 strains. However,other strains reacted with one of the two monoclonals...

Tài liệu Báo cáo khoa học: "A Hierarchical Account of Referential Accessibility" pptx

... Thompson(1988).One of the conjectures of VT is that the veinexpression of a unit (terminal node), whichincludes a chain of discourse units that containthat unit itself, provides an “abstract” orsummary of ... referentialexpressions in a corpus of texts C using DRAs of size k is computed as the sum of the effortse(M,a,DRAk) of all referential expressions awhere VT finds the co-reference of a in a leftsatellite. ... representation tree.Heads of elementary discourse units arethe units themselves. Heads of internalnodes, i.e., discourse spans, are computedby taking the union of the heads of theimmediate child...

Tài liệu Báo cáo khoa học: "A Statistical Analysis of Morphemes in Japanese Terminology" docx

... growth rate of the morphemes of each type observed separately. Each of them expresses the probability of encountering a new morpheme for the separate sample consisting of the morphemes of the ... quantitative status of the morphemes of each type as a mass in terminology. So the transi- tions of Pf and Rf, with changing N, express the changes of the status of the morphemes of each type in ... report the result of a quan- titative analysis of the dynamics of the con- stituent elements of Japanese terminology. In Japanese technical terms, the linguistic contri- bution of morphemes greatly...

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