Báo cáo khoa học: "Learning Information Structure in The Prague Treebank" docx

... more, there are twopossibilities: either providing more training data, orconsidering more features. To investigate the effectof the size of the training data we have computed the learning curves ... 2 in the second column. C4.5 and Bagging achieve the bestperformance improving on the results of the rule-based system by 6.99%. The top of the decision tree generated by C4.5 in the training ... all theories considerat least one of the following two distinctions: (i)a topic/focus1distinction that divides the linguis-tic meaning of the sentence into parts that link the content to the...

Tài liệu Báo cáo khoa học: "Identifying Linguistic Structure in a Quantitative Analysis of Dialect Pronunciation" docx

... the underlying linguistic structure, i.e. the specific linguistic elements that contributed to the differences between the dialects. This is very of-ten seen as one of the main drawbacks of the ... presented in Nerbonne (2005) and Nerbonne (2006). In both ofthese papers the identification of linguistic structure in the aggregate analysis is based on the analysis of the pronunciation of the vowels ... ProkićAlfa-InformaticaUniversity of Groningen The Netherlandsj.prokic@rug.nlAbstract The aim of this paper is to present a newmethod for identifying linguistic structure in the aggregate...

Báo cáo khoa học: "From Information Structure to Intonation: A Phonological Interface for Concept-to-Speech" pot

... transparent. We note in passing that although collapsing multilinear data-structures onto a single tier increases the likeliness of combinatorial explosion in processing when using the two-level ... existing grammar was extended with features describing the information structure. The lexicon consists of entries in phonemic form (using SAMPA notation) enriched with in- 2The filter handling ... in- put for speech synthesis. A distinguishing feature of the grammar used in the generator is the integration of sentence- level and word-level processing within the same formalism. I...

Báo cáo khoa học: "Disjunctions and Inheritance in the Context Feature Structure System" doc

... constraints in the type and constraints in the instance. In this case there are valid contexts of the type with invalid corresponding contexts of the instance. Furthermore the inheritance ... part in the theatre.) In the 6'th block, in the line starting with 4 the parser combines type _16 (for the lexicon entry of im) with the type _17 (for Theater) and defines this combination ... in a certain input context. Example: In e 57 a is required in (dl + 1) at the destination of f, and e is required in (d2 + 2) at the destination of f, and the conflict is in the infimum context...

Báo cáo khoa học: Effect of mutations in the b5–b7 loop on the structure and properties of human small heat shock protein HSP22 (HspB8, H11) pptx

... lower than the probability of crosslinking of the wild-type protein(Fig. 4). The data available in the literature indicate that the b5–b7 loop can be involved in the interaction of the sHsp with ... Aoand Atare the intensitiesof the band of intact protein at the beginning of tryp-sinolysis and at the ﬁxed time of trypsinolysis) against the time of incubation (Fig. 8D). The apparent rateconstants ... movement of the N-terminal end) or tochanges in the ﬂexibility of the b5–b7 loop itself. The data available in the literature indicate that the b5–b7loop is involved in a-crystallin intersubunit...

Tài liệu Báo cáo khoa học: An alternative isomerohydrolase in the retinal Muller cells of a cone-dominant species doc

... contribute toproviding chromophore to melanopsin to maintaintheir light sensitivities. The expression and function ofRPE65c in other cell types in the retina remains to beinvestigated.Earlier ... RPE65c in the inner retina,including Mu¨ller cells, but not in the RPE. Furthermore, double-immuno-staining of dissociated retinal cells using antibodies for RPE65c and gluta-mine synthetase (a ... processinvolving multiple enzymes and retinoid-binding pro-teins between photoreceptors and retinal pigment epi-thelium (RPE); it is essential for maintaining normalvision [3,4]. The key step in...

Tài liệu Báo cáo khoa học: Metabolic gene switching in the murine female heart parallels enhanced mitochondrial respiratory function in response to oxidative stress pdf

... 2007)doi:10.1111/j.1742-4658.2007.06051.x The mechanisms underlying increased cardioprotection in younger femalemice are unclear. We hypothesized that serine-threonine protein kinase(protein kinase B; Akt) triggers ... effects via the prosurvival serine-threonineprotein kinase, Akt (also known as protein kinase B)[2]. In agreement with this, elevated levels of activatedAkt in female hearts are linked to improved ... insights into thisinteresting question.Conclusions In summary, we have identiﬁed a novel metabolicgene switch (decrease in fatty acid utilization,increase in glucose utilization) in the murine...

Tài liệu Báo cáo khoa học: Osmosensing and signaling in the regulation of mammalian cell function docx

... integrin-dependentcell volume sensing and signaling integrates into the overall context of insulin signaling. Similarly, sensingof glutamine-induced hepatocyte swelling by integrinsfeeds into ... hepatocyte swelling [12,13], insu-lin-induced hepatocyte swelling is registrated by the integrin system, leading to a Src-dependent activationof the p38-type MAPK and thereby inhibition ofautophagic ... the integrin system asone major sensor of hepatocyte swelling [12–14].Integrin-inhibitory peptides exhibiting an arginine-gly-cine-aspartic acid (RGD) motif abolish hypoosmoticosmosignaling...

Tài liệu Báo cáo khoa học: An intermediate step in the evolution of ATPases – a hybrid F0–V0 rotor in a bacterial Na+ F1F0 ATP synthase pdf

... of the c ring, respectively. The C-terminal helices show a clear handedness, and twoof the rings face in the opposite direction in the membrane to the other two, forming the same patternas in ... of the ion-binding site. Therefore, the c ring of A. woodii hasonly 10 membrane-buried negative charges that areessential for binding the ion and also for the rotationalmechanism of the ring. ... charges on the ring and thus keeps the ring in place [34–36]. How-ever, the system is not stiff but instead the ring idles in front of the positive charge. This site is accessible to the outside,...

Tài liệu Báo cáo khoa học: Bone morphogenetic proteins in the early development of zebraﬁsh pptx

... Follistatin, Chordin and Noggin[12]. These proteins are antagonists of BMP and othermembers of the TGF-b family, binding to and inhibit-ing these signaling molecules from binding to theirreceptors ... theirreceptors in the extracellular space, thus inhibiting ven-tralizing activities. Of these proteins, Chordin has along-range effect. In Xenopus, expression of the chordingene is localized to the dorsal ... forsome time.Other factors affecting the BMPpathwayFactors inhibiting BMP2b, other than direct bindingproteins such as Noggin and Chordin, also affectdorsoventral patterning. One example...

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