temperature and the biophysical properties of surfactant

... and the A- and the P-loops (that are the stem loops of helices H80 and H92) The second (middle) shell includes helices H80 and H92, the stems of the A- and the P-loops, H74 and H90 The outer shell ... Analysis of the properties of this region illuminated a unified mechanism for the formation of the peptide bond, the translocation of the tRNA molecules and the entrance of nascent proteins into the ... formation, and the shift of the acceptor stems of the tRNA Sovereign motions of structural features of the tRNA, although of a different nature, were suggested previously and are the basis for the hybrid-state...

Ngày tải lên: 23/03/2014, 17:22

... using the SPSS program RESULTS AND DISCUSSION 3.1 Effect of type of oil on the interfacial tension and modulus of the adsorbed film at the oil/water interface In many food formulations the proteins ... purified oil and purified oil, respectively Interfacial tension (mN/m) The interfacial tension and modulus are two important parameters to determine the purity of the oil The effect of the type of oil ... among the values of the various oils) 10 Factors affecting the interfacial properties of surfactant absorbed layers Interf acial tension (mN/m) While the dynamic interfacial tension of the sunflower...

Ngày tải lên: 06/08/2014, 19:20

... Figure 3.9 The Pr and the Ec as a function of PZT contents (a) and Zr/Ti ratios (b) 3.2.2 The temperature dependence of ferroelectric properties of PZT PZN PMnN ceramics The effect of temperature ... ferroelectric materials The objective of the thesis is: (i) Fabrication and research the effects of Pb(Zr0,47Ti0,53)O3 on the structure, microstructure and the physiscal properties of xPb(Zr0,47Ti0,53)O3 ... loss of the material Therefore, the dielectric loss increases, the size of the hysteresis loops increases, the remanent polarization Pr and the coercive field Ec increases[81] When the temperature...

Ngày tải lên: 04/12/2014, 02:54

... for the wild type (WT) and mutant Tms The uncertainties listed are the standard errors of the mean and included the uncertainty in the determination of protein concentrations The values are the ... parameters for the thermal-induced unfolding of wild type (WT) and mutant Tms The values are the mean ± standard deviation of at least three experiments Tm1 is the midpoint of the thermal transition ... by the repeatability of the DSC endotherms upon rescanning and the recovery of the native far-UV CD spectra upon cooling (data not shown) The Tm of each Tm transition is shown in Table 2, and they...

Ngày tải lên: 16/03/2014, 18:20

... significantly absorbed in the intestinal tract, and reach the colon mainly intact [27] They are therefore bioavailable to the epithelial cells in the intestinal wall, where procyanidins and other phenolics ... investigated the relationship of different structural factors of procyanidins, such as the mean degree of polymerization and percentage of galloylation, with their antiproliferative potential and their ... from green tea, is a potent antioxidant and chemopreventive agent [21,22] These and other results suggest that the galloylation of catechins and the presence of gallocatechin moieties in natural...

Ngày tải lên: 07/03/2014, 05:20

... sodium dithionite The EPR spectra and the redox properties of chlorite dismutase are, surprisingly, more similar to those of the globins than of the heme enzymes The midpoint potential of chlorite ... aliquots of where B is the maximum absorbance difference, [L] is the ligand concentration, Aobs is the observed absorbance, and A0 is the absorbance without ligand Preparation of NO adduct of chlorite ... peroxide concentration, the Soret band decreases as the result of further oxidation of the heme by the excess hydrogen peroxide EPR spectroscopy of chlorite dismutase and adducts Ferric chlorite...

Ngày tải lên: 08/03/2014, 16:20

... thermal stability Furthermore, there is a clear correlation between thermostability and molecular volume occupied by the tetramers (Table 1) The difference between the tetrameric volume and the ... that of TTRs and TRPs (Fig 1) In the current study, the fibril-forming and amyloidforming properties of three representatives from the TTR and TRP families were investigated Amyloidogenic properties ... heating These fibrils are similar both in shape and in dimension to the fibrils of hTTR and sbTTR formed by heating The thick and straight morphology of heat-induced fibrils of hTTR, sbTTR and ecTRP...

Ngày tải lên: 16/03/2014, 01:20

... conformation and hydrogen bonding network of the pterin cofactor in the three structures Superpositions of the binary and ternary complexes of hPAH onto the crystal structure of the ligand-free dimeric ... features of its hysteretic properties Thus, the structures of the binary and ternary complexes of hPAH have provided a detailed picture of the protein contacts involved in the binding of biopterin cofactor ... required for the cofactor inhibition of phosphorylation (data not shown) The molecular basis for the negative modulatory effects of the pterin cofactor and dopamine binding to wt-hPAH and their reversal...

Ngày tải lên: 17/03/2014, 09:20

... in the EPR tube They contained 24 mg Rc1Fe per mL and 0.6 mg Rc2Fe per mL in the case of the Fe nitrogenase and 28 mg Rc1Mo per mL and 0.7 mg Rc2Mo per mL in the case of the Mo nitrogenase The ... identical with the control spectrum in the absence of Rc1Mo Furthermore, with the exception of the classical S ¼ 3/2 signal of the MoFe protein at lower temperatures (< 12 K), no other signal was ... type of nitrogenase cluster [27–31] In view of the lack of analogous studies on the cofactor and the P-cluster of the MoFe protein from R capsulatus (Rc1Mo), as well as our intention to use the...

Ngày tải lên: 18/03/2014, 01:20

... close to the wavenumbers of the strongest modes of monoclinic tungsten oxide The two bands at 270 and 327 cm−1 had been assigned to O W O bending modes of the bridging oxide, while the 712 and 807 ... determine whether the crystalline structure is triclinic or monoclinic, since their position and relative intensity is very similar On the other hand, the intensity distribution of the diffraction ... consists of W 4f7/2 and W 4f5/2 doublet peaks with the spin-orbit splitting energy of 2.1 eV Fig 6A and B shows W 4f XPS spectra of N2 annealed samples at the two temperatures of 400 and 600 ◦...

Ngày tải lên: 20/03/2014, 13:11

... kinetic properties of NR1, and as we have shown for CPR and P450 BM3 (23,24,28) the properties of the flavin binding domains of NR1 are likely to mimic the redox properties of the domains in full-length ... spectroelectrochemical titrations of the isolated FAD/NADPH and FMN domains of NR1 enabled the determination of the midpoint reduction potentials for the oxidized/semiquinone (E1) and semiquinone/hydroquinone ... FAD/NADPH domain and the oxidized FMN domain The lack of a second order dependence of the observed rate for interdomain electron transfer as the Ó FEBS 2003 Redox properties of human NR1 (Eur...

Ngày tải lên: 23/03/2014, 21:20

... diminish in the presence of either drug In fact, the Soret band is blue-shifted, the charge transfer band is red-shifted and the a band is decreased in intensity with respect to the b band The spectral ... q FEBS 2001 vicinity of the binding site(s), affecting both the structure and the ligand binding properties of the whole HSA molecule [1 –11] The interaction of ligands with HSA occurs mainly ... Â 1028 M and n ¼ 1.0 ^ 0.1, in the absence of drugs, and Kd ¼ 1.5 ^ 0.2 Â 1027 M and n ¼ 1.0 ^ 0.1, in the presence of ibuprofen and warfarin The haem concentration was 1.0 Â 1027 M The electronic...

Ngày tải lên: 31/03/2014, 23:20

... conducted the statistical analyses and wrote the manuscript BK and URS were the principal investigators of the study; they designed the study's concept and supervised the writing of the manuscript ... psychometric properties The first psychometric property of interest is the dimensionality of the assessment Analyses of this property could reveal whether the children themselves and their parents ... indicator of a chronic health condition Proxy report data were available for 7,166 cases In 82.8% of cases, the proxy was the mother and in 11.4% it was the father The mean age of mothers was...

Ngày tải lên: 18/06/2014, 19:20

... conducted the statistical analyses and wrote the manuscript BK and URS were the principal investigators of the study; they designed the study's concept and supervised the writing of the manuscript ... psychometric properties The first psychometric property of interest is the dimensionality of the assessment Analyses of this property could reveal whether the children themselves and their parents ... indicator of a chronic health condition Proxy report data were available for 7,166 cases In 82.8% of cases, the proxy was the mother and in 11.4% it was the father The mean age of mothers was...

Ngày tải lên: 20/06/2014, 16:20

... [29] Page of 12 The temporal behavior of the channel capacity can be investigated with the help of the LCR and ADF of the channel capacity The LCR of the channel capacity is a measure of the expected ... presents the derivation and analysis of the PDF, CDF, LCR, and ADF of the instantaneous channel capacityc of spatially correlated Nakagami-m channels, for both MRC and EGC The PDF of the channel ... can be found with the help of (4) and by employing the relation pg(z) = (1/gs) pΞ (z/gs) Thereafter, applying the concept of transformation of random variables, the PDF pC(r) of the channel capacity...

Ngày tải lên: 20/06/2014, 22:20

... negligibly small The optical quality of the AlGaAs capping layer can be monitored by the PL intensity of the QW In the sample capped at 450°C, the PL intensity is almost the same as that of the 580°C ... annealing Page of Conclusion We have studied the effects of a low -temperature AlGaAs capping layer on the optical properties of a GaAs QW, using different capping temperatures of 200, 350, 450, and 580°C ... there was a clear difference in the optical qualities between the 200°C-capped sample and the others In the sample capped at 200°C, incorporation of excess arsenic followed by the formation of...

Ngày tải lên: 21/06/2014, 06:20

... that the emission area in this high field region not changed, and the stability of field emission is high The slopes and intercedes of these plots in the high field region are the same, showing the ... are the same With the temperature increasing, the turn-on field is 2.0, 5.5 and 7.0 V/lm, respectively The turn-on field for the former one is lower than that of the latter two, mainly because they ... sensitive to the reaction temperature Because the Ag-TCNQ nanowires with 30-nm-thick Ag film are with regular array and proper structure of tips, their field emission properties dependence on the other...

Ngày tải lên: 21/06/2014, 17:20

... and the transition |3i to a surface states emission By analysing the temperature dependence of the PL intensities I1, I2 and I3 for the three states, we found evidence for thermal population of ... (A) PL intensity of the three states as a function of temperature for CdSe/ZnS QDs (symbols) The same behaviour characterizes the CdSe QDs The continuous lines are the best fit of experimental ... considering only thermal population effects in the range of 15–60 K, we have imposed and solved a set of rate equations The solutions gave us the expressions for the intensities I1, I2 and I3: I1 ðTÞ...

Ngày tải lên: 22/06/2014, 18:20

... between the cellulose and the LDPE matrix Therefore, the mechanical properties of the composites had improved Elongation at break of the pure LDPE was higher than the corresponding values for the ... increased to the point of being comparable to that of pure LDPE The presence of a coupling agent improved the mechanical properties of the composites A comparison of the SEM micrographs for the fracture ... results showed that as the filler loading reached 25 phr of the total weight of the LDPE, the tensile strength of the composite was comparable to that of pure LDPE The effect of having a coupling...

Ngày tải lên: 07/08/2014, 14:20

... the limited distribution of WSX-1, the ability to activate Jak/STAT signaling pathways implies that the principal function of the IL-27R, like that of fellow GP130 user IL-6R (Fig 1), is in the ... hypothesis, recombinant IL-27 can augment proliferation and secretion of IFN-γ by naïve CD4+ T cells [3,39,40] and when combined with The paradoxical pro- and anti-inflammatory properties of IL-27 ... enhanced T and NK T cell production of IFN-γ and the severe liver pathology observed in these animals can be curbed through depletion of IFN-γ, CD4+ cells or NK1.1+ cells [54] Together, these studies...

Ngày tải lên: 09/08/2014, 01:24