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 ... which is useful in building a representation of the text structure. In order to cope with these problems, we have chosen, in EUROTRA, to define the input and the output of the system as extended...

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: "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: "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 ... that the decreasing gap in search quality (as measuredby click positions) might have contributed to the in- crease in Q -level, if we examine the co-click datawithout the stability constraint, ... thiscoincides with the rise in popularity of community-based Q&Asites.Q-rate than the light users. And for the most heavyusers, the Q-rate tapers down.Furthermore, taking the data from the...

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

...

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 ... in these regions [38].Neuronal D-serine in NMDAR regulationIs there a role for neurons in synthesizing and releas-ing d-serine? Although present at a lower level than in astrocytes, d-serine ... 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...

Báo cáo khoa học: Biotinylation in the hyperthermophile Aquifex aeolicus Isolation of a cross-linked BPL:BCCP complex pptx

... that in BirA, the N-terminal domain is somehow involved in tight-binding of the two ligands. In future, it would be interesting to study aBPL:BirA chimera by fusing the DNA-binding domain at the ... [25]. In most cases, the biotincarrier domain of biotin-containing enzymes is located at the C-terminal end of the carboxylase, with the biotinyl-lysine about 35 residues from the C-terminus. ... doi:10.1046/j.1432-1033.2003.03493.x the absence of DNA provides insight into how the N-terminal DNA-binding domain interacts with the 40 bpbiotin operator sequence [12]. The structure of the apo- andholo-forms of the biotinylation...

Xem thêm