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element of physical chemistry

... think formal names s/b used, not familiars David Andrews, University of East Anglia Richard Ansell, University of Leeds Nicholas Brewer, University of Dundee Melanie Britton, University of Birmingham ... University of Groningen Guy Denuault, University of Southampton Karen Edler, University of Bath Fiona Gray, University of St Andrews Gerhard Grobner, Umeồ University Georg Haehner, University of ... University of York Peter Knowles, University of Cardiff Adam Lee, University of York Dúnal Leech, National University of Ireland, Galway Gửran Lindblom, Umeồ University Lesley Lloyd, University of...

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Laying Out GUIs and Setting Properties

Danh mục: Kỹ thuật lập trình

... the Property Inspector, as shown in the following figure 3-40 Setting Component Properties — The Property Inspector To change a property, click in the field to the right of the property name, delete ... Command-line accessibility options configure HandleVisibility and IntegerHandle in the Property Inspector (see Figure Properties That Control Access): Option Handle Visibility Integer Handle Callback ... handles.close_button) Note Since GUIDE uses the Tag property to name functions and structure fields, the tag you select must be a valid MATLAB variable name Use isvarname to determine if the string you want to...

35768 Study of Electrode Reactions and Interfacial Properties

Danh mục: Hóa học - Dầu khí

... p-aminodiphenylamine product Another example (of industrial relevance) is the reductive coupling of activated oleﬁns to yield a radical anion, which reacts with the parent oleﬁn to give a reducible dimer ... interactions and fast electron transfers The peak area at saturation (i.e., the quantity of charge consumed during the reduction or adsorption of the adsorbed layer) can be used to calculate the surface ... semiconductor (e.g., tin oxide), deposited on a transparent material such as quartz or glass substrate The ﬁlm thickness is often selected as a compromise between its electrical conductivity and...

Tài liệu Metric Dimensions and Sections Properties pptx

Danh mục: Kĩ thuật Viễn thông

... section modulus (mm3) Elastic section modulus about the X-X axis (mm3) Elastic section modulus about the Y-Y axis (mm3) Design wall thickness (mm) Plastic section modulus (mm3) Plastic section modulus ... upon outside corner radii equal to 2.0 times the design wall thickness The section property data for rectangular and square SAW HSS are based upon outside corner radii equal to 3.0 times the design ... section property information published for hot rolled structural shapes and the manufacturing tolerances associated with those products The section property data for rectangular and square ERW HSS...

Electronic and Optoelectronic Properties of Semiconductor Structures

Danh mục: Vật lý

... epitaxial growth of a semiconductor layer is the quality of the semiconductor-vacuum interface This semiconductor surface must be “clean,” i.e., there should be no impurity layers (e.g., an oxide ... Carriers in Doped Semiconductors 2.11.2 Mobile Carrier Density and Carrier Freezeout 2.11.3 Equilibrium Density of Carriers in Doped Semiconductors 2.11.4 Heavily Doped Semiconductors 92 95 96 97 ... TRANSPORT EQUATION 4.2.1 Diffusion-Induced Evolution of fk(r) 4.2.2 External Field-Induced Evolution of fk(r) 4.2.3 Scattering-Induced Evolution of fk(r) 153 155 156 156 4.3 AVERAGING PROCEDURES 163...

Tài liệu Báo cáo " The effect of cobalt substitution on structure and magnetic properties of nickel ferrite " pptx

Danh mục: Báo cáo khoa học

... parameters of Ni1-xCox Fe2O4 Table Calculated lattice parameter ‘a’, X-ray density ‘DX’, Actual density and Relative density of Ni1-xCoxFe2O4 ferrites Sample NF NFC02 NFC04 NFC06 NFC08 Particle size ... 8.362 8.371 8.382 X-ray density ‘DX’ (g/cm3) 5.4 5.4 5.3 5.3 5.3 Actual D’x (g/cm3) 5.3 5.2 5.2 5.2 5.1 Relative density D’X/ ‘D’X (%) 98.2 96.3 98.1 98.1 96.2 156 N.K Dung, N.H Tuan / VNU Journal ... Science, Mathematics - Physics 25 (2009) 153-159 The X-ray density or theoretical density was estimated by using the relation [6]: X-ray density D x = ∑ A N A V (1) Where, A is the atomic weights of...

Tài liệu Báo cáo khoa học: Interleukin-1-inducible MCPIP protein has structural and functional properties of RNase and participates in degradation of IL-1b mRNA doc

Danh mục: Báo cáo khoa học

... mRNA We found that the stability of IL-1b transcript is dependent on the type of MCPIP expressed by the vector introduced into these cells In control cells (empty vector) and cells overexpressing ... coding for wild-type MCPIP in comparison to cells transfected with an empty vector or one expressing D ⁄ A-MCPIP (Fig 5, lanes 2,3 and 4, lower band) The levels of mutant and wild-type MCPIP mRNAs ... Involvement of MCPIP in IL-1b mRNA stability (A) For determination of the stability of exogenous IL-1b mRNA, HepG2 cells were transfected with an empty vector pcDNA3, a vector overexpressing...

Tài liệu Báo cáo khoa học: The antibacterial and antifungal properties of trappin-2 (pre-elaﬁn) do not depend on its protease inhibitory function pptx

Danh mục: Báo cáo khoa học

... antibacterial activity of trappin-2, we designed a trappin-2 variant, trappin-2 A62D ⁄ M63L, in which both P1 and P1¢ residues, two key residues involved in the protease inhibitory activity, were mutated ... activity ( 30%) at a 15–30 lm concentration of trappin-2 As with the bacteria, the uninhibitory mutant had the same antifungal activity as wild-type trappin-2 Elaﬁn had a lower antifungal activity ... with wild-type trappin-2 (Fig 2) The mutant appeared to be signiﬁcantly more active against S aureus than was wild-type trappin-2 Taken together, this suggests that the antimicrobial activity of...

Tài liệu Báo cáo khoa học: Tryptophan tryptophylquinone cofactor biogenesis in the aromatic amine dehydrogenase of Alcaligenes faecalis Cofactor assembly and catalytic properties of recombinant enzyme expressed in Paracoccus denitriﬁcans pptx

Danh mục: Báo cáo khoa học

... similar to those obtained during single wavelength studies of the reductive half-reaction (Table 2) Stopped-ﬂow studies of the reductive half-reaction of AADH Studies of the reductive half-reaction ... employed in the alkaline region (e.g sodium borate) were avoided to reduce complications from cation induced adduct formation A typical example of data collected is presented in Fig 4A, as well as ... total volume of mL AADH activity was measured using a dye-linked assay in which the reduction of PES is followed by coupling its oxidation to the reduction of DCPIP Reduction of DCPIP was monitored...

Tài liệu Báo cáo khoa học: The isolation and characterization of cytochrome c nitrite reductase subunits (NrfA and NrfH) from Desulfovibrio desulfuricans ATCC 27774 Re-evaluation of the spectroscopic data and redox properties ppt

Danh mục: Báo cáo khoa học

... peroxidase [29] and nitrite reductase activity staining [30]; in both cases the sample buffer did not contain the reductive agent dithiotreitol and, for nitrite reductase activity, the protein samples ... mM Tris/HCl The eluate fraction containing nitrite reductase activity was ultracentrifugated at 40 000 g, for h The nitrite reductase purity was checked by SDS/PAGE and by UV-Vis spectroscopy ... extract nitrite reducing activity in the D desulfuricans ATCC 27774 soluble fraction and suggested that most of the activity could be caused by interference of the soluble sulﬁte reductase [3,25]...

Tài liệu Báo cáo Y học: Antibacterial and antifungal properties of a-helical, cationic peptides in the venom of scorpions from southern Africa pptx

Danh mục: Báo cáo khoa học

... and preliminary studies on antibacterial activity showed that the quality and biological activity of native and synthesized toxins were identical Due to a shortage of native material, all biological ... amphipathicity, a-helicity and cationicity due to the presence of high amounts of lysine and arginine are the most important factors for activity and are important for the cell selective activity of certain ... mastoparan): charge, helicity, hydrophobic Fig Hemolytic activity of parabutoporin (closed triangle), opistoporin (open triangle), melittin (open square) and mastoparan (closed square) on human red...

Tài liệu Báo cáo Y học: Short peptides are not reliable models of thermodynamic and kinetic properties of the N-terminal metal binding site in serum albumin doc

Danh mục: Báo cáo khoa học

... the identical mode of coordination, important thermodynamic and kinetic parameters of Cu(II) and Ni(II) interactions could not be reproduced quantitatively by short peptides The present paper presents ... high purity defatted HSA and BSA [6] and Val-Ile-His-Asn (VIHN) peptide were obtained from Sigma Peptide AspAla-His-NH2 (DAHam) was a gift of Henryk Kozlowski, Faculty of Chemistry, University of ... were pooled and lyophilized to yield with solid of purity exceeding 99% as assessed by HPLC analysis of the nal materials Identity and purity of peptide was conrmed by mass spectrometry, utilizing...

Tài liệu PHYSICAL, CHEMICAL, AND MECHANICAL PROPERTIES OF BAMBOO AND ITS UTILIZATION POTENTIAL FOR FIBERBOARD MANUFACTURING docx

Danh mục: Kĩ thuật Viễn thông

... specific gravity, contact angle, modulus of rupture, modulus of elasticity, and compressive strength To fabricate bamboo fiberboard and evaluate water soaking, modulus of elasticity (MOE), modulus of ... Use of bamboo as material Ornamental horticulture Local industries Artisanat Furniture A variety of utensils Houses Wood and paper industries Strand boards Medium density fiberboard Laminated lumber ... Properties Specific gravity (SG) is a measure of the density of a substance The specific gravity of a substance is a comparison of its density to that of water The specific gravity of bamboo varies...

Báo cáo " Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose " potx

Danh mục: Báo cáo khoa học

... the selectivity of D-gluconic product is quite low The high oxidation ability with high acidity of HNO3 make the reaction occur at many positions and in different ways, so by-products occupy ... determined again by EDX method after reducing platinum salt with NaBH4 Figure of PS-1 (1% Pt/ SBA-15) sample displays typical peaks of Si and Pt and the result from the quantitative estimation of peak ... directly on the selectivity of gluconic acid product and the best condition for the reaction is pH Acknowledgement This work was financially supported by the QG-09-08 project of Vietnam National 190...

Báo cáo khoa học: Ibuprofen binding to secondary sites allosterically modulates the spectroscopic and catalytic properties of human serum heme–albumin doc

Danh mục: Báo cáo khoa học

... highest-afnity site for ibuprofen in tHSA) and the FA7 (also named Sudlow site I and corresponding to the warfarin-binding pocket) sites show low afnity for FAs, whereas the FA1 (also named the ... crystallography [6] The third low-afnity ibuprofen-binding site has been tentatively identied with the FA2 site Indeed, it acts as the modulatory site that controls the FA-induced conformational switch ... afnity for FAs [17] Therefore, the effect of FAs is opposite to that of ibuprofen [8] Moreover, FA binding to the FA1 site induces heme dissociation from HSAheme, thus impairing HSAheme reactivity...

Báo cáo khoa học: Crystal structure and enzymatic properties of a bacterial family 19 chitinase reveal differences from plant enzymes pdf

Danh mục: Báo cáo khoa học

... (2000–6000-fold reduction in activity), whereas mutation of Glu68 reduced activity to below the level that could be detected with our assays (> 24 000-fold reduction in activity) Discussion Whereas ... ﬁrst reaction equally often results from cleavage between sugars and (new reducing end on the tetramer product) as from cleavage between sugars and (new reducing end on the dimer product) Thus, ... these two residues The role of these glutamates was demonstrated by site-directed mutagenesis Table shows that all mutants had greatly reduced catalytic activity Some detectable activity was still...

Báo cáo khoa học: Spectroscopic and kinetic properties of the horseradish peroxidase mutant T171S Evidence for selective effects on the reduced state of the enzyme potx

Danh mục: Báo cáo khoa học

... that are mediated exclusively on the reduced state of the enzyme We hypothesize that this residue imposes a degree of rigidity to the structure of the reduced state of class III peroxidases Results ... transfer proteins, reduction of HRPC leads to a marked increase in entropy [28] Thus, the greater exibility of the proximal cavity structure evident in 5517 Selective effects on the reduced state of ... potential of the T171S mutant compared to the wildtype protein Mutations of distal residues can give rise to a substantial reduction of the catalytic activity if they have a direct impact on the disposition...

Báo cáo khoa học: Plant oxylipins: Plant responses to 12-oxo-phytodienoic acid are governed by its speciﬁc structural and functional properties ppt

Danh mục: Báo cáo khoa học

... signal-transduction cascades in answer to the altered environment With regard to inducible response mechanisms of plants and animals, compounds derived from the metabolism of polyunsaturated fatty acids, ... ⁄ 2fad7 ⁄ 2fad8 (fatty acid desaturase) triple mutant that is unable to produce the JA precursor a-linolenic acid [33] and the coi1 (coronatine insensitive) JA signal transduction mutant [36] ... wild-type plants, leaf areas were signiﬁcantly reduced By contrast, opr3 mutants infested with B impatiens larvae were able to survive the attack, whereas in the aos mutant the population was reduced...

Báo cáo khoa học: The lactate dehydrogenases encoded by the ldh and ldhB genes in Lactococcus lactis exhibit distinct regulation and catalytic properties ) comparative modeling to probe the molecular basis pdf

Danh mục: Báo cáo khoa học

... LDH activity during the puriﬁcation procedure, the reaction mixture contained 100 mm Tris ⁄ HCl (pH 7.2), mm MgCl2, mm Fru(1,6)P2, 0.3 mm NADH and 20 mm pyruvate (sodium salt) LDHB activity was ... 56.8% identity with LDH-Lp LDHB displays 50.6% identity with LDHBs and 46.7% identity with LDH-Lp The program modeler (version 6.0) [40,41] was used in the comparative modeling procedures The tetramer ... encoded by the ldh gene LDHB (ldhB gene product) and LDH (ldh gene product) share 43% identity in the amino acid sequence The deduced isoelectric points were 5.2 and 4.9, respectively Kinetic properties...

Báo cáo khoa học: Ligand binding and antigenic properties of a human neonatal Fc receptor with mutation of two unpaired cysteine residues docx

Danh mục: Báo cáo khoa học

... cysteine residues [4,5] that complicate heterologous production We have previously described successful heterologous production of truncated MHC class I molecules [31,32] and of a shFcRn wild-type (WT) ... mean residual ellipticity with iodoacetamide (aliquot 1) or after sequential alkylation with iodoacetamide, reduction and alkylation by iodoacetic acid (aliquot 2) Thus, cysteine residues become ... cysteine residues have previously been reported to induce the formation of a tight turn (type VIII turn) of the protein backbone [41] Replacement of the two unpaired cysteine residues with serines...

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