segmentation of domainspecific dialogue acts

Ngày tải lên: 07/03/2014, 22:20

Ngày tải lên: 22/06/2014, 06:20

Ngày tải lên: 24/03/2014, 03:20

... al-Rashed RS, al-Jeffry M, Hossain A, el-Hazmi M. Profile of hepatitis C virus and the possible modes of transmission of the virus in the Gizan area of Saudi Arabia: a community-based study. Ann ... elucidated. Conflict of interest The authors have declared that no conflict of interest exists. References 1. WHO. Global surveillance and control of hepatitis C. Report of a WHO Consultation ... Pakistan, the seroprevalence of HCV was 1.8% with a trend of increasing proportion of positive donors from 1998-2002. [16] There has been very high prevalence rates of HCV reported in Egypt in...

Ngày tải lên: 02/11/2012, 09:56

... reservoir of chronically infected persons is estimated at 170 million, or 3% of the global population. There is much controversy surrounding the natural history of hepatitis C infection. The rate of ... (HCC). The rate of progression to cirrhosis is highly variable, and is influenced by several factors, including the amount of alcohol consumption, age of initial HCV infection, degree of inflammation ... 10%-15% of HCV-infected persons will advance to cirrhosis within the first 20 years. Persons with cirrhosis are at increased risk of developing HCC. An understanding of the natural history of hepatitis...

Ngày tải lên: 02/11/2012, 09:56

... Assistant Professor of Medicine and Staff Physician at the Department of Gastroenterology and Hepatology, University Hospital Freiburg, Germany. Since 2004 he is the head of the Division of Gastroenterology ... are urgently needed. The development of such strategies depends on a detailed understanding of the molecular virology of HCV infection. The investigation of the HCV life cycle and pathogenesis ... Department of Medicine II, University of Freiburg, D-79106 Freiburg, Germany 2. Division of Gastroenterology and Hepatology, Centre Hospitalier Universitaire Vaudois, University of Lausanne,...

Ngày tải lên: 02/11/2012, 10:00

... number—the number of protons, which determines what type of element it is; and the isotope number—the number of protons plus the number of neutrons, which deter- mines which isotope of the element ... to our example of treating isotopes of the chemical elements, the List class is a good choice to represent the isotopes of an element, since each element has a different number of isotopes. The ... have heard of carbon dating, in which the amount of radioactive carbon-14 is measured to determine the age of wood or other organic materials. Carbon can have an isotope number of 12, 13, or...

Ngày tải lên: 05/10/2013, 08:20

... b 8. The salary of a bus driver is much higher ……………. a. in comparison with the salary of a teacher b. than a teacher c. than that of a teacher d. to compare as a teacher  c 9. Professional people ... finding c. of finding d. about finding  a 171. According to a recent survey, ……………. doctors do not have a personal physician. a. a large amount of b. large amount of c. a large number of d. large ... give d. conclude  b 266. A few of the passengers were trying to get some sleep, but …………… of them were reading. a. almost b. all most c. most d. mostly  c 267. A lot of the passengers were traveling...

Ngày tải lên: 25/10/2013, 02:20

... population of monomers with a hydrodynamic radius of approximately 16 A ˚ , which is in agreement with the results of the NMR. The addition of SDS to the C-peptide sample leads to formation of larger ... distribu- tion of 100 l M proinsulin C-peptide in the presence of divalent Ca 2+ and Mg 2+ ions under native conditions (B), and of 100 l M C-peptide in the presence of insulin (C) and of 100 l M ... peptide concentration) of SDS, indicating that the equilibrium between nomomers and oligomers remains. We find that the amount of oligomers formed is enhanced by the addition of modest amounts of SDS to solutions of...

Ngày tải lên: 18/02/2014, 04:20

... Number of genes Number of genes Number of genes Number of genes Fig. 5. Left column: cross-validation of the seed distribution method for six different transcription factors. By means of a jack- knife ... the case of c-Myc, the broad-spectrum ontologies [34]. The results of this jack-knife procedure also provide an estimate of how many of the true positives will lie in the upper 5%: about 18–39% of ... the ratio of the number of occurrences in the upper 5% of the rank divided by the expected occur- rence in the top 5% (given by 0.05 times the total number of occurrences). A list of the motifs...

Ngày tải lên: 18/02/2014, 18:20

... magnification of original spectra. (D) Absorption spectra of the acid- denatured K13N mutant (spectrum a), of the K13N mutant after 3 ms of mixing with 40 m M sulfate (spectrum b), and after 5 s of mixing with ... reagents used were of analytical grade. Construction of horse cytochrome c expression system A version of the horse cytochrome c synthetic gene was designed on the basis of the sequence of a previously ... of electrostatic repulsions in the acidic molten globule of cytochrome c. J Mol Biol 222, 679–686. 13 Jordan T, Eads JC & Spiro TG (1995) Secondary and tertiary structure of the A state of...

Ngày tải lên: 19/02/2014, 05:20

... mem- brane of mitochondria of osteoclasts [57]. Moreover, there are 50 tyrosine residues in the sequence of rat DPP IV, all of which are located in the lumen. A B C Fig. 5. Effect of the PTP ... concentration of the soluble form of DPP IV may result in an increased proteolysis of GLP-1 peptides and thus decreased insu- lin secretion [20]. The insulin-dependent phosphoryla- tion of DPP IV ... (2003) Suppression of postsynaptic density protein 95 expression attenuates increased tyrosine phosphorylation of NR2A subunits of N-methyl-D–aspartate receptors and interactions of Src and Fyn with...

Ngày tải lên: 19/02/2014, 07:20

... would be substantial, amounting to  7% of the rate of glucuronidation of 4-methylumbelliferone, one of the best substrates for glucuronidation. The involvement of UDP-glucuronosyltransferases in ... was a kind gift of Pfizer. All other reagents, whenever possible, were of analytical grade. Preparation of crude liver extracts, microsomes and other subcellular fractions All steps of the described ... was independent of glucuronate 1-phosphate formation. In the presence of ATP-Mg, the rate of hydrolysis of 0.5 mm glucuronate 1-phosphate amounted to 0.04 nmolÆmin )1 Æmg )1 protein irrespective of the...

Ngày tải lên: 19/02/2014, 07:20

... symmetrical reduction of the size of most organs, developed lung emphysema due to lack of alveolar myofibroblasts, resulting in the loss of parenchymal elastin fibres and no formation of alveolar septa. ... constitutive activation of PDGFR kinases, activating mutations of the PDGFR kinases, autocrine signalling due to overexpression of PDGFs and the PDGFRs, contributing to a number of human dis- eases, ... cellular receptor expression allowing binding of some PDGFs but not others. Additionally, some cells display only one of the PDGFR isoforms while other cells express both isoforms, simultaneously or separately....

Ngày tải lên: 19/02/2014, 07:20

... thiol reagents than those of PIP, indicating that the C-peptide of HPI reduces the stability of the disulfide bonds more than that of PIP. The reduced disulfide bond stability of HPI may explain why ... molecular mass of the disulfide isomers of HPI and the enzyme-digested fragments were measured by ESI MS. The molecular mass of the mixture of scrambled isomers was measured by MALDI-TOF MS. CD studies CD ... that of HPI and the denaturation curves are also shown in Fig. 4. Comparison of the denaturation curves of PIP with those of HPI show that PIP is significantly more stable than HPI, regardless of...

Ngày tải lên: 19/02/2014, 12:20

... dynamics simulations of the rotary mobility of c within the ‘hydrophobic bearing’ at the top of a 3 b 3 The molecular model of the rotary part of c and the surrounding part of (ab) 3 was constructed ... a complete unfolding of the single-helical portion of c at the level of cR254–cV257 residues, a partial deformation of the double-helical part of c, but the C-terminal portion of c was tightly clamped ... the torque of 56 pNÆnm. The secondary structure of c is shown for the time of 1 ns (the end of initial equilibration), 17 ns (half of turnover), 23 n s (one turnover) and 32 ns (the end of final...

Ngày tải lên: 19/02/2014, 16:20

... using deletion mutants of the 3¢ terminus of the minus-strand RNA but deletions were made on the basis of the structure of the 5¢UTR of the plus-RNA, the structure of the 3¢-end of the minus- strand ... part of the stem of SL-E1 has a primary sequence homology with the SL-II stem loop of the 3¢UTR [13,14]. It has been previously shown that a recombinant NS5B interacts with the 3¢X sequence of ... the replication mechanism of the hepatitis C virus (HCV), we have studied the role of sequences at the 3¢-end of HCV minus-strand RNA in the initiation of synthesis of the viral genome by viral...

Ngày tải lên: 20/02/2014, 01:20

... to the problem of segmenting parallel parts of documents. The task of aligning each sentence of an abstract to one or more sentences of the body has been studied in the context of summarization ... facilitate the development of better user interfaces and im- prove the performance of summarization and in- formation retrieval systems. Discourse segmentation of the documents com- posed of parallel parts ... concentration param- eter of the underlying DP distribution. GEM(α) defines a distribution of partitions of the unit inter- val into a countable number of parts. The formal definition of our model is as...

Ngày tải lên: 20/02/2014, 04:20

Ngày tải lên: 20/02/2014, 12:20