Báo cáo khoa học: "Analysis and simulation of the architecture of a growing root system: application to a comparative study of several tree seedlings" ppsx

... Analysis and simulation of the architecture of a growing root system: application to a comparative study of several tree seedlingsM. Colin-Belgrand1L. Pages2E. ... suggested that the shape and the spatial extension of root systems markedly influence the rate and patterns of nutrient uptake from the soil.Many nutrient and water uptake modelshave ... detailed analysis of a growing root system with all its dynamicaspects (Belgrand et al., 1987). It is also a developmental approach: a root is definedas the non-branched...

Tài liệu Báo cáo khoa học: "Analysis and Repair of Name Tagger Errors" pptx

... describing them in further detail. 6 Experimental Results and Analysis Table 4 shows the data used to train each stage, drawn from the ACE training data and other sources. The training samples of the ... (Roth and 4202005 training data. The annotator scores (when measured against a final key produced by review and adjudication of the two annotations) were F=92.5 for one annotator and F=92.7 ... that through an extension of our joint inference approach we may soon be able to exceed the performance of a single manual annotator. Our analysis of the types of errors, and the per-formance...

Báo cáo khoa học: "Analysis and Synthesis of the Distribution of Consonants over Languages: A Complex Network Approach" pptx

... the x-axis denotes the degree of eachnode expressed as a fraction of the maximum de-gree and the y-axis denotes the number of nodeshaving a given degree expressed as a fraction of the total ... builttaking into consideration the β-distribution ratherthan just the mean value of the inventory size thatcan explain the negative slope of the ﬁrst regime.We look forward to do the same as a ... Jakobson and M. Halle. 1956. Fundamentals of Language, The Hague: Mouton and Co.P. Ladefoged and I. Maddieson. 1996. Sounds of the Worlds Languages, Oxford: Blackwell.B. Lindblom and I. Maddieson....

Báo cáo khoa học: Analysis and biological relevance of advanced glycation end-products of DNA in eukaryotic cells ppt

... were asfollows: b-actin – hsbact-S3-391 (5¢-TGA GAC CTT CAACAC CCC AG-3¢) and hsbact -A5 -1046 (5¢-CAT CTG CTGGAA GGT GGA CA-3¢); b-galactosidase – b_Gal_F (5¢-AAT CGT CTG ACC GAT GAT CC-3¢) and ... separated on agarosegels, and the amount was determined semiquantitatively. Relativeluciferase activity was deﬁned as the ratio of luciferase to a co-transfected b-galactosidase mean value ... Relative luciferase activities were deﬁned as the ratio of the ﬁreﬂy luciferase to b -galactosidasevalue of each sample to the mean ratio of the unmodiﬁed pGL3 Control vector. The results of the luciferase...

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

... microdomains of the plasmamembrane (caveolae), intracellular organelles, ligand-independent activation of growth factor- and cytokinereceptors and autocrine stimulation of signal transduc-tion ... which again depends on a acid sphin-gomyelinase-catalyzed ceramide production and subse-quent activation of the PKCf [15]. Baﬁlomycin A1 (aninhibitor of vacuolar-type H+-ATPases) and the anionchannel ... stimulates ana-bolic metabolism and proliferation and provides cyto-protection, whereas cellular shrinkage leads to catabolism and insulin resistance and sensitizes cells to apoptotic stimuli.The...

Tài liệu Báo cáo khoa học: Pathways and products for the metabolism of vitamin D3 by cytochrome P450scc docx

... provides a clear explanation for the inability of P450scc to cleave the side chain of vitaminD3. Hydroxylation of the side chain of cholesterol at the adjacent carbons C22 and C20, to produce2 0a, 22R-dihydroxycholesterol ... School of Biomolecular, Biomedical and Chemical Sciences, The University of Western Australia, Crawley, Australia2 Department of Pharmaceutical Sciences, College of Pharmacy, University of Tennessee ... which they arose by the action of P450scc, as well as the products that they gave rise to. This revealed both the major and minor pathways for the metabolism of vitamin D3 by P450scc.ResultsMetabolism...

Tài liệu Báo cáo khoa học: Unfolding and aggregation during the thermal denaturation of streptokinase pptx

... respect to temperature provides the heat capacity relative to N, also known as the excessheat capacity. The addition of the heat capacity of the native state, Cp(N), gives the total heat capacity ... 637–648.10. Chaudhary, A. , Vasudha, S., Rajagopal, K., Komath, S.S., Garg,N.,Yadav,M.,Mande,S.C.&Sahni,G.(1999)Functionofthecentral domain of streptokinase in substrate plasminogen docking and processing ... from these equations using the following set of parameters: a linear heat capacity function for the nativestate, Cp(N); the enthalpies and the heat capacities of the unfolded state, DHUand...

Báo cáo khoa học: Flexibility and communication within the structure of the Mycobacterium smegmatis methionyl-tRNA synthetase Henrik Ingvarsson and Torsten Unge potx

... againstTrp294, end -to- end stacking against the two histidines19 and 22, and close-packing interactions to Gly21.Analysis of the catalytic-site amino acid sequencesGeneral analysis of catalytic-site ... lattice. The CAPS molecule binds to a shal-low pocket situated in the junction between the C-terminal end of helix a4 of the catalytic domain, the N-terminal end of strand b4 and helix a5 , and the C-terminal ... are made between all Ca atoms of the catalytic domains of the M. smegmatis MetRS structures (the rmsdis  0.3 A ˚for all proteins). The three proteins A, B and C of the asymmetric unit of the...

báo cáo khoa học: "Nanofibers and nanoparticles from the insectcapturing adhesive of the Sundew (Drosera) for cell attachment" ppsx

... coatings of the scaffo ld, as confirmed by both AFM imaging and the staining pattern of Alcian Blue coated surfaces. The cells generally attached to areas where the Alcian Bluestaining was barely ... Right, an AFM scan overlaid onto the stained micrograph. An area of interest has been outlined to demonstrate the overlapbetween the Alcian blue stain and the topography image from the AFM. Scale ... Ca, Mg, O, and Cl. The presence of high amounts of Ca, Mg, and Cl, along with the crystallinestructure of the nanoparticles indicates that the nanoparticles are the results of salts in the adhesive.Zhang...

Tài liệu Báo cáo khoa học: "Names and Similarities on the Web: Fact Extraction in the Fast Lane" ppt

... which the candidate fact is extracted; and c) the pattern-based scores of the candidate fact. The latter fea-ture converts the scores of the patterns extracting the candidate fact into a score ... literaturequasi-unanimously assesses the quality of eachcandidate fact based on the number and qual-ity of the patterns that extract the candidate fact(more is better); and the number of seed ... documents to extract entities of types Company and Country,as well as facts of type Person-CeoOf-Company and City-CapitalOf-Country. Based on manualevaluation of precision and recall, a total of 23,128company...

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