Báo cáo khoa học: "Morphonology in the Lexicon" docx

... from the beginning of the word until the onset of the vowel feature and the alveolar feature would be defined as commencing at the end of the vowel feature and ending at the end of the word. ... have the value (ext ext) for the path <sylls> at its own entry, so the first line defines the root in this case to be <struct ext ext>. The second line defines the value for the ... <coda> == 1. The structure is inherited from the Word node, with just the values of the onset, peak and coda defined at the node Spell 2. In our example theory defining a fragment of the English...

Báo cáo khoa học: "Parsing in the Ahsmmeeofa Comldete Lexicon" ppt

... model in which aec~sing the database on indexcd or hashed ficlds is the least expensive, a single remaining interpretation warrants an assumption of corrccmcss, aud lasdy, remaining ambiguities ... The category assignments leading to successful parses are then ordered by a procedure which estimates the cost of chocking them. This ordering currently assumcs an undcrlying cost model in ... records all the terms known to the system because of: ta) redundv.cy: Kccpmg the same intbrmation in two places (the lexicon and the database) lcads to problcms of integrity. Updating is more...

Tài liệu Báo cáo khóa học: Mutations in the hydrophobic core and in the protein–RNA interface affect the packing and stability of icosahedral viruses doc

... with valine, the cavity volume increased to 43 A˚3, reﬂecting a reduction in the surface area of the residue (% 59 A˚2)andintheinteractions occurring there (Fig. 8). Met88 resides in the Fig. ... the M88V mutant (by substitutionusing the same program) for the existence of internal cavities in this region in the structure. A signiﬁcant cavity in the WTphage structure in the neighboring ... possessing a temperature sensitivegrowth phenotype. Overall, our data show how point sub-stitutions in the capsid protein, which aﬀect either the packing or the interaction at the protein–RNA interface,result...

Tài liệu Báo cáo khoa học: "Centering in-the-Large: Computing Referential Discourse Segments" doc

... for the definitions). The fourth column depicts the levels of discourse segments which are com- puted by the algorithm in Table 6. Horizontal lines in- dicate the beginning of a segment (in the ... level 2 is opened, set- ting the beginning and the ending to "4". The phrase "das diinne Handbiichlein" (the thin leaflet) in U5 does not co-specify the C v (2, U4) but ... better integrated into centering than the caching model, since the cells of segment struc- tures simply contain "pointers" that implement a direct link to the original centering data....

Báo cáo khoa học: "Search in the Lost Sense of “Query”: Question Formulation in Web Search Queries and its Temporal Change" pptx

... observe how the fraction of query trafﬁc con-taining the phrase1changes over time. For instance,as shown next, the fraction of query trafﬁc contain-ing “how to” has in fact been going up since ... learning the most effective query formulation for the search en-gine. These suggest an interesting research question:what is causing the rise in question-query usage?Irrespective of the cause, ... cause, given that there is anincreased use of Q-queries in spite of the seem-ingly inferior search results, there is a strong needfor the search engines to improve their handling ofquestion-queries.AcknowledgmentsWe...

Báo cáo khoa học: "MORPHOLOGY in the EUROTRA BASE LEVEL CONCEPT " pdf

... text (in analysis) or the target text (in synthesis) and it is the job of the linguists who are building the translation system to use these generators in such a way that they construct linguistically ... derivation and compounding. The following constructor would build representations of all French verbs of the regular er-paradigm in the infinitive, including the information that these representations ... people working together in close contact for a limited period of time. Many coders working over long periods are needed, and they will constantly be maintaining, revising and up-dating the work...

Báo cáo khoa học: Alterations in the photoactivation pathway of rhodopsin mutants associated with retinitis pigmentosa potx

... Khorana HG (1996) Structure andfunction in rhodopsin: correct folding and misfolding in two point mutants in the intradiscal domain of rhodop-sin identiﬁed in retinitis pigmentosa. Proc Natl Acad ... of the mutants and their ability to activateGt could be correlated with the increase in size of the side-chain at position 51, pointing to a disruption of the interhelical packing due to the ... Thus, the introduction of the V300Gmutation in G51V protein did not increase the activation of the single mutant. Indeed, molecularFig. 5. Mutational effects of G51V and G89D in the context of the...

Báo cáo khoa học: Mutations in the C-terminal domain of ALSV (Avian Leukemia and Sarcoma Viruses) integrase alter the concerted DNA integration process in vitro pot

... highlight the role of the C-terminal domain in the general folding of the enzymeand, hence, on its activity. This study points to the importantrole of residues at the IN C-terminal domain in the ... FranceIntegrase (IN) is the retroviral enzyme responsible for the integration of the DNA copy of the retroviral genome into the host cell DNA. The C-terminal domain of IN is involved in DNA binding and enzyme ... wild-type IN and the C-terminal domain mutants. Letters above indicate the mutation: the ﬁrst letter is the originalresidue, the number its position in the protein, and the second letter the residue...

Báo cáo khoa học: Dynamics in the transmission of genetic information: from meiosis to postmeiotic events doc

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Báo cáo khoa học: acids in the brain: D-serine in neurotransmission and neurodegeneration ppt

... Localizations of serine racemase protein and mRNA in the brain. (A) Staining for serine racemase in the cerebral cortex (Ctx) of a P7rat (layers IV–VI). (B) Staining of neurons in the stratum pyramidale ... that serine racemase, the d-serine biosynthetic enzyme, iswidely expressed in neurons of the brain, suggesting that d-serine also hasa neuronal origin. We now review these ﬁndings, focusing on ... nuclei of the hindbrain[38,39,66] and in ganglion cells of the retina [67].Table 1. Some transmitter-like properties of brain D-serine. ASCT, alanine, serine, cysteine and thrionine transporter.D-Serine...

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