8thermomechanical parameters of porous thermolabile materials studied by hot distortion tests
Báo cáo khoa học: Protein stabilization by compatible solutes Effect of diglycerol phosphate on the dynamics of Desulfovibrio gigas rubredoxin studied by NMR docx
... completely restricts concerted motions of groups on larger time-scales The inuence of DGP addition on the order parameters of RdDg is of the same magnitude as the effect of ligand binding reported in ... evaluated prior to analysis The software package R1R2_DIFFUSION [31,40] was used to translate the centre of mass of the mean structure of the NMR ensemble [28] to the origin of coordinates, and to estimate ... exibility of the N-terminal region of the protein The difference of S2 values in the presence and absence of solute are shown in Fig Overall, the average S2 values tend to be higher in the presence of...
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Báo cáo khoa học: Catalytic transformations of supercoiled DNA as studied by flow linear dichroism technique doc
... DNA topoisomerization studied by FLD A B Fig Mechanisms of action of enzymes of DNA topoisomerization (A) Topoisomerase I-3¢ (B) Topoisomerase II Two possible ways of action of topoisomerase I are ... Comparison of the kinetics of inhibition of reaction of lg of pUC19 DNA with lg of topoisomerase II by etoposide and AMPPNP (A) lM (curve 1), lM (2), 10 lM (3), 25 lM (4), 50 lM (5) of etoposide; (B) ... global shape parameters of DNA, i.e their writhe or twist The use of a length-independent parameter, the parameter reflecting DNA topoisomerization studied by FLD a local alteration of DNA geometry,...
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Selected aspects of enzymatic catalytic activity studied by theoretical methods
... Comparison of W-band ED EPR (8 K) spectra of frozen solutions of WT-NO, Y10F-NO and dHis-NO Simulations (magenta) of the spectra of WT-NO (b) and Y10F-NO (c) 95 Figure 3.28 Comparison of orientation ... (MHz) of protons of Tyr10 and His369 which are H-bonded to the NO group 104 Table 3.18 FeS Cofactors and Redox States of Hase I 111 Table 3.19 Mössbauer parameters of the ... calculations are often required for both signal assignment and interpretation of the spin Hamiltonian parameters in terms of structure because of the overlapping ENDOR signals of several H-bonds...
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Tài liệu Báo cáo Y học: The solution structure and activation of visual arrestin studied by small-angle X-ray scattering pot
... points obtained by dilution of a 140-lM stock solution are indicated by circles, while those obtained by further concentration of the stock solution are indicated by squares All of the data points ... unit of both crystal structures [9,10] has a radius of gyration of almost 4.3 nm, and would have a forward scattering approximately twice as large as that observed by us Neither of these parameters ... concentration range of 30–150 lM (1.3–6.5 mgÆmL)1), 90 lL of arrestin solution was mixed with 10 lL of 10 mM peptide solution to yield a final peptide concentration of mM For higher concentrations of arrestin...
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Báo cáo khoa học: Structural features and dynamics of a cold-adapted alkaline phosphatase studied by EPR spectroscopy docx
... dynamical modes of the nitroxide are a combination of rotary diffusion of the macromolecule, internal bond isomerization of the spin-label and backbone uctuations Analysing the lineshape of the resulting ... conguration (i.e isosteric replacement of a hydroxyl group of serine for a thiol group of cysteine) Previously, nearby loop-residues S53, S78 and S80 were all predicted by a homology model to be within ... populations of the nitroxide spin-label that have different rotameric forms of the R1 side chain [34] An immobile rotamer is suggested to arise because of an interaction of the probe with other parts of...
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Báo cáo khoa học: New roles of flavoproteins in molecular cell biology: Blue-light active flavoproteins studied by electron paramagnetic resonance pptx
... radical of E coli CPD photolyase [30] Right, 360.03 GHz EPR spectrum of the flavin radical of a protein-bound FMN radical of the LOV1 domain (C57M mutant) of Chlamydomonas reinhardtii phototropin ... 537–543 14 Partch CL & Sancar A (2005) Photochemistry and photobiology of cryptochrome blue-light photopigments: the search for a photocycle Photochem Photobiol 81, 1291–1304 15 Brudler R, Hitomi ... short-lived radical pair species in FAD photoreduction of photolyases [2,79] The origin of the radical pair signal in cryptochrome-DASH could be unraveled by examination of a single-point mutant, Trp324Phe,...
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Báo cáo khoa học: Netropsin interactions in the minor groove of d(GGCCAATTGG) studied by a combination of resolution enhancement and ab initio calculations pot
... R-value No of nonsolvent atoms No of water molecules ˚ Average B-values of DNA (A2) ˚ Average B-values of Nt (A2) ˚ Average B-values of water molecules (A2) ˚ Rmsd of bond lengths (A) Rmsd of bond ... one of the major consequences of binding of a drug molecule in the minor groove is the widening of this groove, which is confirmed by the reported structure The minor groove width is defined by ... atoms of the drug in particular form H-bonds with thymine O2 and adenine N3 atoms in the AATT-rich sequence of the decamer Part of the spine of hydration is substituted by the amide N atoms of the...
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characterizations of porous titania thin films produced by
... growth of porous titania Pieces of mm × mm were cut from the foil and one side was coated with gold (100 nm) On the other side a thin layer (10 nm) of Ti–2 wt%Al solid solution was deposited by e-beam ... the surface and a porous morphology is developed The band gap of titania is ∼3.2 eV and the peak wavelength of the UV radiations used is ∼350 nm Hence, UV photo irradiation of the oxide surface ... quantity of aluminium is less, the chance of formation of excess unreacted aluminium oxide responsible for higher resistivity is negligible This argument is substantiated by the low value of resistivity...
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Báo cáo khoa học: Bilayer localization of membrane-active peptides studied in biomimetic vesicles by visible and fluorescence spectroscopies pptx
... the %CR (degree of blue–red transition; see the Materials and methods) induced by increasing the quantity of bound peptides, i.e the extent of induced blue–red transitions affected by the added peptides ... fluorescence quenching of NBD-PE Decay of the fluorescence (538 nm) of NBD-PE dye induced by sodium dithionite following addition of peptides Data showing dithionite-induced quenching of fluorescence emission ... modification of the rigidity of the lipid environment in proximity to the fluorescent probe; and alteration of the amount and mobility of water molecules at the probe area [30,35,38] The effects of the...
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Báo cáo khoa học: Structural function of C-terminal amidation of endomorphin Conformational comparison ofl-selective endomorphin-2 with its C-terminal free acid, studied by 1 H-NMR spectroscopy, molecular calculation, and X-ray crystallography pot
... for the pH dependence of their NMR spectra Characteristically, the NMR spectra of EM2 in water of pH 2.7 and DPC micelles of pH 3.5 were the same as those in solutions of pH 5.2 This was in contrast ... conformers of EM2 in water and DPC micelles were hardly influenced by the variation in pH, because the NMR spectra of EM2 in a solution of acidic pH were identical to those in solution of pH 5.2 ... separated by more than one residue resulted in the absence of a well-defined overall structure, and the lack of direct ROEs among the aromatic protons of Tyr1, Phe3 and Phe4 leads to the fluctuation of...
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Báo cáo hóa học: " Layer-dependent nanoscale electrical properties of graphene studied by conductive scanning probe microscopy" docx
... bias of V, the ΔC values of SLG are slightly smaller than those of BLG, but at the DC bias of +3 V, the ΔC values of SLG are larger than those of BLG Figure 2e, f Page of 0 Figure AFM image of ... height of a graphene layer on top of graphene is close to the interlayer distance of graphite [15,25] we fitted the measured graphene height (h) as a function of the assigned layer number (n) by ... Figure The dC/dV amplitude images of graphene on SiO2 The dC/dV amplitude images of graphene on SiO2 obtained at DC biases of V (a) and +3 V (b) The line profiles of the marked lines (from right...
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Báo cáo hóa học: "Fabrication of Densely Packed AlN Nanowires by a Chemical Conversion of Al2O3 Nanowires Based on Porous Anodic Alumina Film" potx
... most of the alumina nanowires have been converted into the AlN nanowires during heat treatment Fig FE-SEM images of densely packed alumina nanowires produced by chemical etching of the porous ... like to thank Prof S S Fan, Prof Y D Li, Prof L J Bie, and Mr Y C Sun for their help and valuable discussions This work was supported by the National Natural Science Foundation of China under ... composed of gel-like alumina The chemical etching of porous alumina film can relax colloidal alumina wires, and thus produce the densely packed nanowires [21] Figure shows a typical FE-SEM image of...
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Báo cáo hóa học: " Preparation and Characterization of Nano structured Materials from Fly Ash: A Waste from Thermal Power Stations, by High Energy Ball Milling" potx
... Particle size of fly ash with milling time (in hours) Table Surface energy and work of adhesion of fresh as well as ball milled fly ash Fly ash sample Fig Variation of Specific surface area of fly ash ... shows the SEM images of nanostructured fly ash after different times of ball milling Figure (C and D) corresponds to the photomicrographs of nano-structured fly ash after 20 h of ball milling The ... total duration of milling was 60 hours The following milling conditions were maintained: loading of the ball mill with 10:1 ratio of balls to fly ash and milling chamber and balls were of tungsten...
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Báo cáo vật lý: "MORPHOLOGY STUDIES OF POROUS GaP, SYNTHESIZED BY LASER-INDUCED ETCHING" pdf
... size structures of the porous layer.18 Journal of Physical Science, Vol 18(1), 103–116, 2007 105 In n-GaP made porous by anodization etching, the photocurrent response within the porous layer indicates ... devices Most of studies reported to date concerning the porous GaP layer formation are blue and UV photoluminescence from porous GaP structures prepared by electrochemical anodization of crystalline ... optical properties of the porous GaP are different from the properties of the original single crystal The modification of the properties of GaP could be due to an intensification of the electron-phonon...
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Báo cáo vật lý: "EXOTHERMIC TRANSITIONS ON COOLING OF GELATINIZED NATIVE RICE STARCH STUDIED BY DIFFERENTIAL SCANNING CALORIMETRY" doc
... technologically important properties of starch-containing foods by changing the granule swelling, solubilization, and crystallization of starch polymers.8 In the case of native rice starch, other than ... perform comparison of means at 95% probability level RESULTS AND DISCUSSION 3.1 Effects of Defatting on Thermal Transitions The amylose content of rice starch, determined by amylose-iodine blue ... processes, thus the presence of more water promotes higher mobility of the whole system and made the recrystallization process appeared at lower temperature The enthalpy of exotherm of 1:2 system was higher...
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báo cáo khoa học: "Size-dependent endocytosis of gold nanoparticles studied by three-dimensional mapping of plasmonic scattering images" docx
... yp, zp) position The uptake rate of AuNPs was defined by the number of AuNPs in the cell divided by the total number of AuNPs The total AuNP number was obtained by summing up AuNP numbers for all ... solution [16,17] Different diameters of AuNPs were made by using different ratios of chloroauric acid and reducing agent The fabrication parameters for different sizes of AuNPs were listed in Table ... different sizes of AuNPs in an array of 500-nm-holes The scattering of AuNPs in the hole can be used to mimic the scattering of AuNP aggregate in the vesicle The preparation of the samples were...
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báo cáo khoa học: " Designing an experimental HIV/HCV intervention to promote the safe re-use of drug preparation materials by injection drug users in Puerto Rico" potx
... levels of risky injection behaviors, including number of daily injections [4], utilization of shooting galleries [5], joint drug purchase and injection of shared drugs [6], and re-use of injection ... addition to the central aim of reducing contamination of preparation materials by blood in injection syringes http://www.harmreductionjournal.com/content/5/1/14 sessions; of the 10 participants attended ... three rounds produced a total of six sessions At the beginning of each session, participants were offered refreshments; sessions lasted about 1.5 hours The content of office-based sessions changed...
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báo cáo khoa học: " Genetic relationships among seven sections of genus Arachis studied by using SSR markers" ppt
... relationships among 96 accessions of 36 different species and sections of Arachis by using the SSR markers developed by Cuc and colleagues [28] from genomic DNA library of cultivated groundnut and ... first species [35] Transferability of SSR markers between related species is a consequence of the homology of flanking sequences of the microsatellites and size of the region between the primer ... attributed to the use of larger number of SSR markers, and also the conserved genic regions as origin of CS SSRs used Most of the primer pairs tested in the present study amplified regions of expected...
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Báo cáo y học: " Key transmission parameters of an institutional outbreak during the 1918 influenza pandemic estimated by mathematical modelling" pptx
... camp in 1918 from all causes as reported by the Principal Medical Officer at the camp [3] Further examination of data on the cause of death and date -of- death suggests the total mortality attributable ... 1918 [2] A unique feature of this military camp outbreak was the systematic collection by medical staff of morbidity data as well as mortality data We undertook modelling of these data to understand ... 1: Parameters used in the SEIR incidence model* Parameter Scenario Initial proportion of the population susceptible (Pis) Proportion of infected cases who develop symptoms (Pids) Infectivity of...
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