tuning the electronic structure of solids by means of nanometer sized microstructures
Báo cáo hóa học: " Tuning the electronic properties of boron nitride nanotube by mechanical uni-axial deformation: a DFT study" docx
... on the electronic structures of BNNTs Figure 7a,b,c,d,e shows the PDOS of s and p orbitals of B68 and N35 atoms as well as the summation of these orbitals for the (8,0) BNNT At strain of 0, there ... l z(t ) is the length of the BNNT in the axial b BNNT (6,6) The normal strain in the axial direction of the BNNT is given by (2) j where is the average radius of atom i and rij is the distance ... address the influence of axial tensions on the electronic properties of (8,0) zigzag and (5,5) armchair BNNTs Although the stress-strain profiles indicate the mechanical properties of these two...
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Báo cáo khoa học: Tracking interactions that stabilize the dimer structure of starch phosphorylase from Corynebacterium callunae Roles of Arg234 and Arg242 revealed by sequence analysis and site-directed mutagenesis doc
... through analysis of the StP primary structure The results have revealed clearly that Arg234 and Arg242 of the TOWER interface region of StP partially destabilize the dimer structure of the unligated ... elements of rmGP [4] and EcMalP [3] onto the linear sequence of StP and thus measures the extent of conservation of the respective ÔsitesÕ in StP As in other GPs, the catalytic site and the PLP ... about by the mutations is reflected by significant shifts of the Cm values for the mutants, relative to that for the wild-type, to higher urea concentrations by % M or greater The stabilization of...
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Tài liệu Đề tài " The causal structure of microlocalized rough Einstein metrics " pptx
... take the use of the special structure of the Einstein equations one step further by deriving unexpected regularity properties of optical functions which are essential in the proof of the Main Theorem ... derivatives of the traceless part of χ A similar observation holds for another null component of the Hessian of the optical function, η The role of the Raychaudhuri equation is taken by the transport ... properties of the components of the Riemann curvature tensor Rαβγδ The remaining sections are occupied with the proof of the Asymptotics Theorem We give a detailed description of their content and the...
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Tài liệu Báo cáo khoa học: The crystal structure of human a-amino-b-carboxymuconatee-semialdehyde decarboxylase in complex with 1,3-dihydroxyacetonephosphate suggests a regulatory link between NAD synthesis and glycolysis ppt
... on the hACMSD crystals using the same beamline, clearly indicated the presence of a Zn metal ion bound to the enzyme Analysis of the diffraction data set allowed us to assign the crystal to the ... content of 50% Data were processed using the program mosflm [38], and the ccp4 suite of programs [39] was used for scaling Structure determination for hACMSD was performed by means of the molecular ... related by a dyad axis in the crystal, and a mixture of monomeric and dimeric forms in solution [18] Therefore, the available structural data suggest Fig Ribbon representation of the overall structure...
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Tài liệu Báo cáo khoa học: "Understanding the Semantic Structure of Noun Phrase Queries" pptx
... name of an intent class For example, the IH of the query “alice in wonderland 2010 cast” is “cast”, which is an attribute name of Movie By issuing the query, the user intends to find out the values ... goal of this work is to identify the semantic labels of IMs, i.e., the attribute names they implicitly refer to We use Ac to denote the set of IM semantic labels for the intent class c Other ... for semantic understanding of noun phrase queries Assuming that the intent class c ∈ C of a query is known, we cast the problem of extracting the semantic structure of the query into a joint segmentation/classification...
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Tài liệu Báo cáo khoa học: The solution structure of reduced dimeric copper zinc superoxide dismutase doc
... determined by the experimental intrahistidine NOEs The presence of the disulfide bridge between Cys57 and Cys146 was checked through SDS/PAGE and through the analysis of the 13C shifts of the Cb of the ... percent of the backbone 13C resonances were assigned and about 86% of the 13C side-chain resonances All the ring protons of the histidines of the active site and of His43 were assigned through the ... respectively, for the backbone of the two subunits The difference between rmsd of monomeric and dimeric species is due to the indetermination of the reciprocal orientation of the two subunits The average...
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Tài liệu Báo cáo khoa học: The crystal structure of coenzyme B12-dependent glycerol dehydratase in complex with cobalamin and propane-1,2-diol pptx
... the overall structure is shown in Fig 3A The enzyme exists as a dimer of the abc heterotrimer There is a noncrystallographic twofold axis around the center of Fig 3A The structure of an abc heterotrimer ... from a bulk of water by the corrin ring of cobalamin Figure 4B shows the structure around the enzyme-bound cobalamin The cobalamin molecule is bound between the a and b subunits in the so-called ... cob(II)alamin by X-ray irradiation [59] Therefore, we believe that the structure reported in this paper is also that of the glycerol dehydrataseÆcob(II)alamin complex The dihedral angle of the northern...
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Tài liệu Báo cáo Y học: Molecular modeling of the dimeric structure of human lipoprotein lipase and functional studies of the carboxyl-terminal domain docx
... orientation, the catalytic site in the N-terminal domain of one subunit and the substrate recognition site in the C-terminal domain of the other face each other, thereby bringing together the substrate-binding ... established Of two possible dimeric structures of LPL, the head-tohead and the head-to-tail models, the studies of the chimeric proteins of hepatic lipase and LPL and the tandem repeat approach of LPL ... modeling of the dimeric structure of LPL Two dimeric model structures of LPL were constructed using INSIGHT II version 2000 on a Silicon Graphics workstation The model structure of the closed...
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Publicly Funded Agricultural Research and the Changing Structure of U.S. Agriculture doc
... of further analysis The Structure of Agriculture The structure of agriculture” is a broad phenomenon involving both the characteristics of farms (the system of agricultural production) and the ... secure the services of eminent members of appropriate professions in the examination of policy matters pertaining to the health of the public The Institute acts under the responsibility given to the ... influenced the structure of U.S agriculture and, if so, how The Committee to Review the Role of Publicly Funded Agricultural Research on the Structure of U.S Agriculture was asked to assess the role of...
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Báo cáo khoa học: The crystal structure of NlpI A prokaryotic tetratricopeptide repeat protein with a globular fold potx
... principally by the Of ces of Biological and Environmental Research and of Basic Energy Sciences of the US Department of Energy, and from the National Center for Research Resources of the National ... Crystal structure of NlpI A B C D Fig Solubility of NlpI constructs and the structure of mature NlpI (A) 10–20% gradient SDS ⁄ PAGE of NlpI expression products, showing the insolubility of the 3-TPR ... matches to the consensus the full-length HOP, they act to facilitate the assembly of multichaperone regulatory complexes The structural independence of these TPR domains, and the presence of independent...
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Báo cáo khoa học: "Understanding the thematic structure of the Qur’an: an exploratory multivariate approach" pdf
... other profile in the data set The profiles of G can be summarized by a vector s whose dimensionality is that of the data, and each of whose elements contains the mean of the frequencies for the ... where j is the index to the jth element of s, i indexes the rows of the data matrix F, and n is the total number of rows in cluster G If s is interpreted in terms of the semantics of the matrix ... interpretation of the cluster tree, therefore, is to work through the levels of the tree from the top, constructing and comparing thematic profiles for the subclusters at each level as far down the tree...
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Báo cáo khoa học: Molecular mass of macromolecules and subunits and the quaternary structure of hemoglobin from the microcrustacean Daphnia magna ppt
... Accordingly, the present data on the molecular mass of the native Hb complex as well as the Hb subunits are inconsistent In addition, there are only two hypothetical models concerning the structure of the ... [2,4,8,11,12,42] offers the chance to relate the structure and function of this interesting molecule The present study has contributed to this approach: (a) the determination of the molecular mass of the ... SDS ⁄ PAGE the separation of polypeptides is influenced not only by the molecular mass but also by the degree of coverage of surface charges, which depends on the amino acid composition of proteins...
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The Economic Structure of Intellectual Property Law pot
... output by restricting the use of the property, and if so this is as much a cost of the property right as the cost of the fence is Suppose the owner of a shopping center does charge for the use of ... division would be giving the head of a recovered statue to the finder and the rest of the statue to the original owner In the case discussed by Holmes, the owner of the safe owned the banknotes Suppose ... deemed the owner of the leased premises because the landlord, by virtue of the lease, loses physical control over them (that is, the landlord cannot barge into the premises during the term of the...
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Báo cáo khoa học: Methods to monitor the quaternary structure of G protein-coupled receptors doc
... efficiency of transfer is determined both by the orientation of the energy transfer partners and by the distance between them [28] The fact that the efficiency of transfer varies with the 6th-power of the ... expressed as the ratio of the distance ‘r’ separating the donor and the acceptor over the distance resulting in 50% of the maximal efficacy (R0) As indicated by the Forster equation, the efficiency of ¨ ... assessing the effect of ligand-binding on the quaternary structure of the receptors, the possibility that the antibodies could inhibit binding to the receptor also needs to be controlled Finally, the...
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Báo cáo khoa học: "Parsing the Internal Structure of Words: A New Paradigm for Chinese Word Segmentation" doc
... where R is the root part -of- speech headed by the word r, and S is the suffix part -of- speech headed by s If the head of this word is its suffix, then we can define the probability of w by Pr(w) = ... parse tree T , if we denote the set of lexicalized phrase structures in T by C, the set of lexicalized word structures by W, and the set of unknown flat words by F, then the joint probability Pr(T, ... very complex structures By (3)–(5), the generation of word structures is exactly the same as that of ordinary phrase structures Hence the probabilities of these words can be defined in the same way...
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Báo cáo khoa học: The crystal structure of annexin Gh1 from Gossypium hirsutum reveals an unusual S3 cluster Implications for cellulose synthase complex formation and oxidative stress response potx
... are either distorted or the access of a cation to the site is blocked by the presence of a side chain of a basic residue In case of the IIAB site (Fig 2), the acidic residue acting as the bidentate ... crystal structure of Anx(Gh1) from cotton emphasizes the high conservation of the unique annexin fold even among the members of the plant subfamily of annexin proteins The fold is comprised of the ... Anx24(Ca32), the tryptophan residue in the present structure is somehow halfway between the loop-in and the loop-out position of the bell pepper annexin Fig The three-dimensional structure of Anx(Gh1)...
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Báo cáo khoa học: "TENSE TREES AS THE "FINE STRUCTURE" OF DISCOURSE" ppt
... pleased with the result." The processing of the (indexical) LF of a new utterance always begins with the root node of the current tense tree (structure) in focus The processing of the top-level ... traversal of trees and the addition of new tokens is simply and fully determined by the logical forms of the sentences being interpreted The major advantage of tense trees is that they allow ... among E, R and S, but rather by successively taking account of the meanings of the nested pres, futr and perf operators in the LF of the sentence As it happens, each of those operators implicitly...
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Báo cáo Y học: The solution structure of gomesin, an antimicrobial cysteine-rich peptide from the spider pptx
... the C-terminal strand This leads to a higher twist of the b sheet of androctonin compared to the two other peptides Despite such differences, the rmsd of the coordinates of the b strands of the ... on each side of the sheet reduces considerably the hydrophobicity of the surface of androctonin when compared to the two other peptides (Fig 5) Mode of action The mode of action of the three peptides ... in the headgroup region of the membrane, leading to a decrease of the thickness of the lipid bilayer, and then to (b) an active state, when the peptide penetrates the hydrocarbon core of the...
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Báo cáo khoa học: "TEMPORAL REASONING IN NATURAL LANGUAGE UNDERSTANDING: THE TEMPORAL STRUCTURE OF THE NARRATIVE" docx
... their mother to fix the tail v-~hveof the windmilL b In the great expanse of the prairie where they lived, the high tower of the windmill was the only real landmark (Worline, 1956:1) Given the conceptual ... events: the tail v~ne broke, mother sent the children to fix it, the children set off walking The temporal focus, Indicated by the past perfect tense, is in the middle of the wallri~g event; the ... progression of events within the same narrative unit The required Inferential work le relatively transparent The event of John's entering the o n c e results in the state of his being in the ofrice:...
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electronic structure of titanium oxide nanotubules
... CB The displacement of the photogenerated electrons and holes leads to the change of the surface net charges thereby the surface photovoltage is produced [13] Interestingly, the FISPS of the ... exhibits under the effect of the external electric field Based on the experimental data of FISPS and PL, in the framework of band theory, we ascribe the new photovoltage responses to the electronic ... that the traps were the main contribution to the PL of TiO2 nanomaterials Furthermore the oxygen vacancies had been considered to be the origin of the observed PL of TiO2 nanowires [16] Therefore,...
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