Báo cáo khoa học: Neptunium uptake by serum transferrin potx

... been obtained by variation of the solution acidity in the presence of 20 mm NTA from an initial solution of aqueous Np(IV) [Np(IV)] ¼ 1.5 mm; HCl, 1 m; Neptunium uptake by serum transferrin I. ... nanoferrous metals by erum transferrin. In Structure and Bonding. 92, 121–162. Springer Verlag, Heidelberg. 10 Aisen P (1998) Transferrin, the transferrin receptor, and uptake of...

Ngày tải lên: 07/03/2014, 17:20

... by more than 5. The syntactic structure of each source sen- tence is extracted using Apple Pie 7.2 (Sekine 1998), a statistical parser trained on Penn Tree- bank data. It was evaluated by ... {imani,blgates,bloedorn}@mitre.org Abstract This paper describes a program which revises a draft text by aggregating together descriptions of discourse entities, in addition to deleting e...

Ngày tải lên: 17/03/2014, 07:20

... investi- gate whether these reductases can mimic MSR [14] by enhancing the uptake of cobalamin by apo-MS. It was previously shown that apo-MS generated by expression in insect cells or purified from rat ... MSR also has putative chaperone-like activity; it promotes the stability of hMS by facilitating uptake of cobalamin by the apo-form of hMS [14]. The enhanced cofactor binding...

Ngày tải lên: 18/02/2014, 08:20

... rarely operates in isolation. Rather the resultant Ca 2+ signals evoked by this molecule are often boos- ted by Ca 2+ release by RyRs, InsP 3 Rs or both. Inter- actions between different Ca 2+ release ... of lysosomal-related organelles by osmotic lysis [47]. The other approach is aimed at collapsing proton gradients thought to power Ca 2+ uptake into acidic stores by Ca 2+ ⁄ H +...

Ngày tải lên: 20/02/2014, 01:20

... mul- tiple passes over a sentence. If a spanning analy- sis cannot be found by the parser, the number of lexical categories supplied by the supertagger is increased. The supertagger-parser interaction ... example sentence and the sets of categories assigned by the supertagger. The first category in each column is correct and the categories used by the parser are marked in bold. The cor...

Ngày tải lên: 20/02/2014, 04:20

... classified by S → weasel if wpw(S) > σ (4) where σ is an arbitrary threshold used to control the precision/recall balance and wpw(S) is the sum of scores over all words in S, normalized by the ... subjectivity (see Pang & Lee (2008) for an overview). However, even opin- ions have to be backed up by facts to be effective as arguments. Distinguishing facts from fiction re- quires to...

Ngày tải lên: 20/02/2014, 09:20

... grammatical. In this conception, a language (be it natural or not) is produced (or generated) by a grammar by means of a specific mechanism, for example derivation. However, when no structure can be ... the grammaticality indices obtained from PG formalism and the acceptability judgements measured by means of a psycholinguistic analysis. The results show that the derived grammatical- ity...

Ngày tải lên: 20/02/2014, 11:21

... directed acyclic graph 2 Tagging by Path Voting Constraints We assume that sentences are delineated and that each token is assigned all possible tags by a lexicon or by a morphological analyzer. ... wj, i _< j < i + n - 1 is subsumed by the corre- sponding constraint Cj-i+l. When such a match occurs, the vote of the path is incremented by V. When all constraints are a...

Ngày tải lên: 20/02/2014, 18:20

... to resolve these conflicts: 5 (I) Resolve shift-reduce conflicts by shifting. (2) Resolve reduce-reduce conflicts by performing the longer reduction. These two rules suffice to engender ... English is possible, he demonstrated that certain performance "This research was supported by the Defense Advanced Research Proiects Agency under Contract NOOO39-80-C-0575 with the Nava...

Ngày tải lên: 21/02/2014, 20:20

... solve this problem by using G q and Sto increase terms found in as follow: C —q  —q Given w k E C q : • if w k E G q , increase w k by a; • if w k e S q , increase w k by 13; where 0 < ... named QUALIFIER, adopts the by now more or less standard QA system architec- ture as shown in Figure 1. It includes modules to perform question analysis, query formulation by using extern...

Ngày tải lên: 22/02/2014, 02:20