Báo cáo khoa học: "INTEGRATING TEACHING THE ENGLISH TENSE: NAIVE AND FORMAL GRAMMARS IN AN INTELLIGENT TUTOR FOR FOREIGN LANGUAGE TEACHING" pdf
... • ~ • TEACHING THE ENGLISH TENSE: INTEGRATING NAIVE AND FORMAL GRAMMARS IN AN INTELLIGENT TUTOR FOR FOREIGN LANGUAGE TEACHING Danilo Fum 1, Bruno Pani 2 and Carlo Tasso 2 1 ... the formal grammars developed by theoretical and computational linguists. The paper discusses the relationships between naive and formal grammars in foreign...
Ngày tải lên: 18/03/2014, 02:20
... Intelligence techniques for developing very sophisticated systems, called Intelligent Tutoring Systems, in the specific domain of foreign language teaching (Barchan, Woodmansee, and Yazdani, ... TENSE GENERATION IN AN INTELLIGENT TUTOR FOR FOREIGN LANGUAGE TEACHING: SOME ISSUES IN THE DESIGN OF THE VERB EXPERT Danilo FUM (*), Paolo Giangrandi(°), Carl...
Ngày tải lên: 01/04/2014, 00:20
... Rad51-S233W, and Rad51-G236W mutants did not cause significant defects in ssDNA binding and dsDNA binding A B Fig. 3. The DNA binding activities of the Rad51 mutants. (A) The ssDNA binding experiments. The ... the strand- exchange reaction (Fig. 4B). These results suggest that the Rad51-Tyr232 residue in the L1 loop is involved in the functional DNA binding during str...
Ngày tải lên: 19/02/2014, 06:20
Báo cáo khoa học: Structure of the atrial natriuretic peptide receptor extracellular domain in the unbound and hormone-bound states by single-particle electron microscopy ppt
... single-transmembrane polypeptide, each containing an extracellular ANP- binding domain (ECD), a transmembrane domain, and an intracellular domain consisting of an ATP-binding regulatory domain and a GCase ... 6. ANP-induced structural change in the ANP receptor juxta- membrane domains and proposed rotation mechanism for trans- membrane signaling. (A) The X-ray structures o...
Ngày tải lên: 07/03/2014, 03:20
Báo cáo khoa học: Val216 decides the substrate specificity of a-glucosidase in Saccharomyces cerevisiae doc
... maltose and isomaltose but neither the Gly217 nor the Ser218 mutant changed their substrate specificity, indicating that Val216 is an important residue discriminating the a-1,4- and 1,6-glucosidic linkages ... by the use of a Blunting kit (Takara Syuzo). The fragment was inserted into the pKP1500 vector and the resulting plasmid was intro- duced into E. coli KP3998. Sever...
Ngày tải lên: 07/03/2014, 16:20
Báo cáo khoa học: Characterization of the glutamyl endopeptidase from Staphylococcus aureus expressed in Escherichia coli pptx
... GluSE, GluV8 and their derivatives. The lysates (lanes 1–5) and batch-purified fractions (lanes 6–10) of recombinant GluSE (lanes 1 and 6), GluV8 (lanes 2 and 7), proGluSE-matGluV8 (lanes 3 and 8), ... were trans- formed with the plasmid (designated as pQE60-GluSE), and the transformants were selected on LB broth agar plates containing 50 lgÆmL )1 of ampicillin and 25 lgÆmL...
Ngày tải lên: 16/03/2014, 06:20
Báo cáo khoa học: Relationship between the structure of guanidines and N-hydroxyguanidines, their binding to inducible nitric oxide synthase (iNOS) and their iNOS-catalysed oxidation to NO pptx
... CNRS, Paris) for the synthesis of the guanidines and N-hydroxyguanidines used in this study. DL-G thanks Zhi-Qiang Wang, Chin-Chuan Wei and Koustubh Panda (Cleveland Clinic Foundation) for their help with ... association and dissociation rate con- stants of the guanidine or N-hydroxyguanidine with the protein in the presence of 400 lm ImH. Three guanidines and the...
Ngày tải lên: 16/03/2014, 22:20
Báo cáo khoa học: Bioenergetics of the formyl-methanofuran dehydrogenase and heterodisulfide reductase reactions in Methanothermobacter thermautotrophicus pot
... formyl-methanofuran and methanofuran ([f-MFR] : [MFR]) and (B) membrane potential (Dw,mV)(h) and sodium motive force (smf, mV) (r). In (C) the Gibbs free energy changes of formyl-methanofuran synthesis ... than 5–10%. Formyl-methanofu- ran was quantified from the difference between the meth- anofuran contents in incubated and nonincubated cells. Analysis of HS-CoM, HS-CoB an...
Ngày tải lên: 17/03/2014, 09:20
Báo cáo khoa học: Modulation of the endocannabinoid system by focal brain ischemia in the rat is involved in neuroprotection afforded by 17b-estradiol pdf
... arachidonic acid and ethanol- amine [5]. Taken together, AEA, its congeners and the proteins that bind, synthesize or transport them form the ‘endocannabinoid system’ [6]. In the brain, endocannabinoids ... relationship for the endogenous cannabinoid, anandamide, and certain of its analogues at vanilloid receptors in transfected cells and vas deferens. Br J Pharmacol 132...
Ngày tải lên: 23/03/2014, 07:20
Báo cáo khoa học: Deviation of the neurosporaxanthin pathway towards b-carotene biosynthesis in Fusarium fujikuroi by a point mutation in the phytoene desaturase gene ppt
... 100% A within 7 min, followed by another 10 min under the same conditions. The flow-rate was then enhanced to 2 mLÆmin )1 , and the sepa- ration was continued for further 8 min. Using a Maxplot (400–500 ... of the car genes in carS and carS ⁄ carB mutants As shown in Figs 7 and 8, the striking difference in the carotenoid content between SF21 and its precursor strai...
Ngày tải lên: 30/03/2014, 01:20