the structure and electrical activity of neurons
Báo cáo khoa học: Effects of a tryptophanyl substitution on the structure and antimicrobial activity of C-terminally truncated gaegurin 4 doc
Ngày tải lên :
31/03/2014, 09:20
... complete restoration of activity In the present work, we further examined the biological activities of several GGN4 analogue peptides The structural effect and the functional role of the tryptophanyl ... helix structure, with the hydrophobic residues on one side and the hydrophilic residues on the other side of the helical axis In particular, all of the lysine residues are oriented to the same ... hydrophobic core of the SDS micelles, at least through the residues F9, V13, and W16 All of the physico-chemical and structural properties of the D16W-D24)37 GGN4, which are similar to those of other known...
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Tài liệu Báo cáo khoa học: Design, structure and biological activity of b-turn peptides of CD2 protein for inhibition of T-cell adhesion ppt
Ngày tải lên :
19/02/2014, 13:20
... Therefore, the structure of peptide cER consists of two b-turns, located at the N- and C-termini A comparison of the b-turn structure of cER with the similar region in the crystal structure of ... with the higher inhibitory activity of the cEL peptide and the very low inhibitory activity of the cYT peptide compared to other peptides The flanking residue of the b-turn, i.e Tyr3 of the cVY ... [38] Analysis of the crystal structure of CD2 revealed that on either side of the binding surface of CD2, there are b-turns which stabilize the b-strands Thus, we hypothesized that these b-turns...
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Tài liệu Báo cáo khoa học: The structure and biological characteristics of the Spirochaeta aurantia outer membrane glycolipid LGLB pdf
Ngày tải lên :
19/02/2014, 16:20
... Fragments of HSQC and HMBC spectra of compound Labels illustrate assignment of the amide linkage between the amino group of Asp and the carboxyl group of GalA residue E Scheme The structures of oligosaccharides ... monosaccharides present in the products and were identified, and the ratio of structures and was close to : All chemical shifts remained mostly unchanged with the exception of H/C-2 and H/C-3 of the glycerol ... because of the existence of branches in the molecule Similarly, the tandem MS was conducted for the doubly charged ion at m/z 1180.25 (data not shown) and the mass spectral data fully agree with the...
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growth, structure and electrical conduction of wo3 nanorods
Ngày tải lên :
19/03/2014, 16:48
... to the rods, there is evidence for the growth of 3-D aggregates, their density is inversely proportional to the density of the rods This evidences that the formation of the nanorods results of ... Science 254 (2007) 270–273 the value of the nanostructure resistance The shape of the curve was elucidated in terms of electrical contacts [18] In such a two-probe method, the electrical contacts play ... substrate, the length direction corresponds to the best accommodation of the HTB on the mica The second step concerns the growth of some monolayers of hexagonal WO3which perfectly matches with the underlying...
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influence of binders on the sensing and electrical characteristics of wo3-based gas sensors
Ngày tải lên :
20/03/2014, 13:04
... methodology andror microstructure of the polycrystals In this paper, we have investigated the effects of binders on the sensing characteristics and the structural electrical properties of WO films The ... cases, even the concentration of the adsorbed gas ions can be measured from the change of potential barrier w15x The potential barrier at the GB of the polycrystal impedes the flow of the electrons ... Thus the addition of a suitable amount of SiO in WO sol–gel is believed to increase the porosity of the composite film and in turn the sensitivity of the sensor w3x To our knowledge, however, the...
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effects of recognition versus disclosure on the structure and financial reporting of share based payments
Ngày tải lên :
03/06/2014, 01:05
... estimate the fair value at the grant date of the equity instruments” (FAS An alternative way to measure accuracy is the standard deviation of the difference between the reported value and the benchmark ... time-specific Thus, the amount of reporting flexibility and the ease of auditing may differ across the inputs I discuss these differences when interpreting the results of the reliability analysis ... in the contractual length and moneyness of options On average, mandatory recognizers reduced the contractual length of CEO and executive options by 3.5 and 2.5 months (significant at the 5% and...
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Báo cáo toán học: " Structure and electrical properties of sputtered TiO2/ZrO2 bilayer composite dielectrics upon annealing in nitrogen" pdf
Ngày tải lên :
20/06/2014, 21:20
... presents the micrograph of the as-deposited sample It can be clearly seen that the structure includes the two layer stacks of TiO2 and ZrO2 films and that the interface layer is observed between the ... the series capacity of the twolayer structure [20] At 773 K, the dielectric constant of the composite thin film is the highest and reaches the maximum of 46.1, while at 973 K, the dielectric constant ... in theTiO2/ZrO2 film and the interface traps at the interface The smallest Vfb is -0.53 V for the 773 K annealed thin film, and for the as-deposited and 573 K and 973 K annealed samples, the...
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báo cáo hóa học:" Crystal structure and electrical properties of bismuth sodium titanate zirconate ceramics" pdf
Ngày tải lên :
21/06/2014, 17:20
... observe the microstructure of the ceramics To prepare the SEM samples, they were well-polished and thermally etched for 15 at 750°C The average grain size was then evaluated from these SEM images The ... experiment and analysis and drafted the manuscript PJ participated as the assistant for the research experiment AW and SJ participated in the conception and design of the study and revised the manuscript ... Almelo, The Netherlands) with CuKa radiation was used to investigate the phase and crystal structure of the sintered ceramics The preliminary crystal structure details were calculated using the Powder...
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Báo cáo toán học: "On the structure and classification of SOMAs: generalizations of mutually orthogonal Latin" docx
Ngày tải lên :
07/08/2014, 06:20
... Thus, the the existence of a SOMA(n − 1, n) is equivalent to the existence of n − MOLS of order n, and hence to the existence of a projective plane of order n If n is a power of a prime then there ... more of: a row permutation, a column permutation, and renaming symbols In this paper we study the structure of a SOMA, and then report on the use of computational group theory and graph theory ... indecomposable if and only if A and ∅ are the only subSOMAs of A The disjoint union of subSOMAs of A is a subSOMA, and it is easy to see that if B and C are subSOMAs of A, then B ∩ C is a subSOMA if and only...
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Investigation on the structure and magnetic properties of co2mnsi heusler alloy for spintronic application
Ngày tải lên :
16/10/2015, 12:00
... Origin of the bandgap According to the calculations by Galanakis et al [34], the origin of the bandgap in Heusler alloys is caused by the d-d states hybridization of X and Y transition metals, as the ... guidance on the understanding of structural and magnetic properties of CMS Heusler alloys and its further application into the field of spin-electronics 1.6 Outline of thesis This thesis was organized ... attention in the field of spinelectronics due to its large band gap of 0.4eV in the minority spin band and high Curie temperature of 712°C According to Valet-Fert model, the use of highly spin-polarized...
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Tài liệu Báo cáo Y học: A Raman optical activity study of rheomorphism in caseins, synucleins and tau New insight into the structure and behaviour of natively unfolded proteins pot
Ngày tải lên :
21/02/2014, 15:20
... longer-chain (and nonglobular) versions of the structure of the Bowman±Birk inhibitor in Fig The X-ray crystal structure pi2 reveals that the /,w angles of most of the residues of the Bowman±Birk ... form of b strand [18] The positive bands at » 1675 cm)1 in the amide I region of the ROA spectra of b- and j-casein, which originate mainly in the peptide C O stretch, are characteristic of disordered ... that the former is likely to be in the Cterminal half and the latter in the N-terminal half of the protein [29,48±51] Sequence-based structure prediction methods suggest that the caseins are of the...
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Tài liệu Báo cáo " The effect of cobalt substitution on structure and magnetic properties of nickel ferrite " pptx
Ngày tải lên :
13/02/2014, 04:20
... atomic weights of all the atoms in the unit cell, V is volume of the unit cell and N is the Avogadro’s number Since each primitive unit cell of the spinel structure contains molecules, the X-ray density, ... (3) where B2θ is the full width half maximum (rad), λ the wavelength of the X-ray, θ the angle between the incident and diffracted beams (degree) and d the particle size of the sample (nm) (in ... coercivity of materials, the second term can take part of several tens percent of HC and the last one whereas can only reach several hundreds of gauss Thus, the increasing of Co-concentration led to the...
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Tài liệu Body Size: The Structure and Function of Aquatic Ecosystems pptx
Ngày tải lên :
17/02/2014, 19:20
... size and temperature The metabolic theory of ecology uses these scaling relations to make and test THE METABOLIC THEORY OF ECOLOGY predictions about the effects of energy and materials on the ... empirical and theoretical work in biological oceanography and limnology that relates the structure, function and biotic composition of these systems to the body sizes of the organisms present and the ... survival The effects of changes in the magnitude of each of these traits on the others (e.g increased offspring size may be traded off against a reduction in offspring number), and their relationship...
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Tài liệu Báo cáo khoa học: Cold survival in freeze-intolerant insects The structure and function of b-helical antifreeze proteins pdf
Ngày tải lên :
19/02/2014, 16:20
... Further examination of the structure and sequence of sbwAFP and TmAFP reveal other similarities (Fig 8C) The panel shows the similarity of the TXT face again, and also reveals the presence of ... Tyr (TmAFP) and the TH activity of the protein was measured The top of the panel shows the protein with the TXT face oriented towards the viewer, while the bottom shows the effect of mutations ... Comparison of the X-ray structures of sbwAFP isoform 337 with CfAFP-501 The structures are shown as smoothed, Ca traces, with the structure and PDB code shown below each panel (A) Overlap of isoform...
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Tài liệu Báo cáo khoa học: Structure and membrane interaction of the internal fusion peptide of avian sarcoma leukosis virus pdf
Ngày tải lên :
19/02/2014, 16:20
... binding of NBD-IFP–wt at pH 7.4 and 37 °C Increased intensity and the blue-shift of fluorescence of NBD attached to the N-terminus of the peptide indicate embedding of the peptide in the apolar ... of for IFP–wt) and the shape of Ix/x vs x plot Specifically, the initial slow rise of the latter plot (from x ¼ 1) reflects that the self-association of the peptide is not tight (on the scale of ... with the effect of the proline on the helix summarized by Barlow and Thornton [28] Discussion We have studied the structure of the IFP of ASLV-A and its membrane interactions to examine the difference...
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Tài liệu Báo cáo khoa học: "The Structure and Process of Talking About Doing" pdf
Ngày tải lên :
21/02/2014, 20:20
... our model of the role of point of view in problem solving SUMMARY We have reported here a three pronged approach to the study of problem solving action and report: I) the collected of data on ... problem solving and talk about problem solving, 2) development of a process model of these behaviors, and 3) use of coding techniques to extract traces of "critical phenomena" from the transcripts ... evaluating the model So far, we have focussed our efforts on two types of problem solving phenomena: the changes in the problem solver's organization of the problem ("point of view"), and systematic...
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Báo cáo khoa học: Amino acids at the N- and C-termini of human glutamate carboxypeptidase II are required for enzymatic activity and proper folding pptx
Ngày tải lên :
07/03/2014, 15:20
... NAAG-hydrolyzing activity (the 44/736 variant), and the C-terminal extension (addition of the V5-His tag in the case of the 44/750_V5-His variant) reduced the activity by a factor of > 104 Furthermore, ... absence of the intracellular and transmembrane domains does not influence carboxypeptidase activity of GCPII and neither does the attachment of the HisXpress epitope at the N-terminus of the 44/750 ... secretion of the truncated variants into the culture medium, suggesting the importance of the C-terminus for the correct folding and procession of GCPII throughout the secretory pathway These data...
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Báo cáo khoa học: Solution structure and backbone dynamics of the XPC-binding domain of the human DNA repair protein hHR23B docx
Ngày tải lên :
07/03/2014, 17:20
... further our knowledge with respect to the mechanisms of action of these proteins, it is crucial that we define the precise boundaries of the STI1-homologous domain and compare the structures of these ... 2A) The N-terminal part of XPCB–hHR23B B C Fig NMR structure of the XPCB domain of hHR23B (A) Stereoview of the 12 superimposed structures of XPCB–hHR23B All Pro residues conserved among the ... [33] The errors of R1 and R2 were estimated from the errors in the single exponential decay fitting, and those of the 15N-1H NOEs were obtained from the difference of two independent experiments The...
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Báo cáo Y học: Electrostatic properties of the structure of the docking and dimerization domain of protein kinase A IIa doc
Ngày tải lên :
08/03/2014, 22:20
... Cc of Asp and Cd of Glu, and Og of Tyr Positive unit charges were added at the following atoms: Nt of the N-terminus, Nf of Lys, Cf of Arg, and Nd or Ne of His (depending on the position of the ... noting the switch of Leu13 from being part of the exposed hydrophobic groove in the top-top structures to becoming part of the hydrophobic core in the top-bottom structures and assuming the role of ... set of available NOEs This protocol allows for the investigation of the role of electrostatics in guiding the optimum relative topology of the two monomers of the dimer Using the pKa values and...
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THE STRUCTURE AND DEVELOPMENT OF THE CEREAL PLANT pptx
Ngày tải lên :
08/03/2014, 23:20
... CHAPTER – THE STRUCTURE AND DEVELOPMENT OF THE CEREAL PLANT 24 THE WHEAT BOOK THE WHEAT BOOK CHAPTER – THE STRUCTURE AND DEVELOPMENT OF THE CEREAL PLANT THE STRUCTURE AND DEVELOPMENT OF THE CEREAL ... parts of a leaf are the tip of the blade and the top of the sheath Where the blade and sheath join, there are structures called the ligule and the auricles (Figure 2.3) Characteristics of the shoot ... structure of the stem and leaf of the wheat plant 27 CHAPTER – THE STRUCTURE AND DEVELOPMENT OF THE CEREAL PLANT DESCRIPTION OF THE WHEAT PLANT THE WHEAT BOOK (continued) at their bases, so the...
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