the hydrogen bonding properties of molecules
Tài liệu Báo cáo khoa học: Binding of ligands originates small perturbations on the microscopic thermodynamic properties of a multicentre redox protein pptx
... in the signals of the haem methyls of DvHc3:ZnRb complex vs the results in the isolated cytochrome is close to the full effect of complex formation Because the thermodynamic parameters for the ... contributions, hence they are suitable for monitoring the thermodynamic properties of the cytochrome The paramagnetic chemical shift of the haem methyl resonances is a very sensitive probe of the haem environment ... respectively The figure shows that the effect of binding Zn-rubredoxin on the NMR signals of the haem methyls vs the results obtained for the isolated cytochrome is very small As observed for the case of...
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Báo cáo khoa học: Structure analysis of the flavoredoxin from Desulfovibrio vulgaris Miyazaki F reveals key residues that discriminate the functions and properties of the flavin reductase family pdf
... b sheet with the b12 of the other monomer, and towards the C-terminus, the subsequent residues, Phe182Lys186, pass through the a2 vicinity of the other monomer For the FeR dimer, the N-terminal ... Resolution of the structure of NADP+-bound FeR revealed that the nicotinamide moiety of NADP+ faces the re-side of the isoalloxazine ring, and that the 2Â-P-AMP moiety is held in the groove between the ... in the binding of the phosphate group(s) of FMN or FAD Lys92 forms a salt bridge with the O3P of FMN A salt bridge that involves avin species has not been reported in the structures of the other...
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Báo cáo khoa học: Effect of mutations in the b5–b7 loop on the structure and properties of human small heat shock protein HSP22 (HspB8, H11) pptx
... destabilization of the overall structure of the sHsp [35,36] Therefore, we analyzed the effect of point mutations in the linker connecting the b5 and b7 strands of HSP22 on its thermal stability The wild-type ... correspond to the b8 strand of the other sHsp The primary structure of the a-crystallin domain of human sHsp is very conservative and the loop connecting the b5 and b7 strands is shorter than the corresponding ... affect the elution profile of any of the proteins analyzed The amplitude, position and the width of the protein peaks were not dependent on the transient heating These data suggest that the wild-type...
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Báo cáo khoa học: Expression and characterization of cyanobacterium heme oxygenase, a key enzyme in the phycobilin synthesis Properties of the heme complex of recombinant active enzyme potx
... residue to G143, the higher is the pKa value, independent of the nature of the displaced amino acid One possible explanation for the high pKa value of heme–Syn HO-1, and of Hmu O, is that the distal ... mg of the purified protein Formation of the heme–Syn HO-1 complex When an aliquot of the alkaline-hemin solution is added into the solution containing Syn HO-1, the resultant solution gives the ... Curve fitting of the fraction of the alkaline form to the calculated values using the Henderson–Hasselbalch equation yielded the best-fitted result with pKa ¼ 8.9 (Fig 5B) EPR spectra of the heme–Syn...
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Báo cáo khoa học: Kininogen-derived peptides for investigating the putative vasoactive properties of human cathepsins K and L docx
... suggests that cathepsin K is a new member of the kininase family Both the kininogenase activity of cathepsin L and/or the kininase activity of cathepsin K may be favored by the generation of an acidic ... components, which reduces the pH of the pericellular environment of macrophages [20] This raises the question of the dual behaviour of kininogens complexed with CP While concentrations of cystatins C, ... sites were identified, one at the Gly384Phe385 bond and the other at the Arg389-Ser390 bond, which is consistent with the unique ability of cathepsin K among mammalian cathepsins to accomodate Pro...
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Báo cáo hóa học: "Evaluation of the anti-angiogenic properties of the new selective aVb3 integrin antagonist RGDechiHCit" potx
... Conclusions The present study indicates the importance of RGDechiHCit in the selective inhibition of endothelial aVb3 integrin Such inhibition opens new fields of investigation on the mechanisms of angiogenesis, ... in serum The RP-HPLC profile of the peptide before the incubation showed a single peak at tr = 16.64 min, ascribable to the complete sequence by the MS spectrum (Figure 1C) After 24h of incubation ... without the addition of hFN, they showed formation of only a few spontaneous tube structures (17.4 ± 1.2 branches per 10000 μm ) On the other hand, when the cells were plated on Matrigel with the...
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Báo cáo hóa học: " Polycrystallization effects on the nanoscale electrical properties of high-k dielectrics" doc
... pA, while the black areas show a current lower than the noise level the conduction and trapping properties of the stacks, which could reduce the reliability of the MOS devices due to the weaker ... strength of the grain boundaries Finally, the influence of the environment conditions on the study of polycrystalline high-k dielectrics was also analyzed The results demonstrate that the reduction of ... However, since the EOT of the polycrystalline sample is smaller (see Table 1), its lower conductivity can only be attributed to the crystallinity of the stack and not to the reduction of the oxide...
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Báo cáo vật lý: "Effect of Filler Incorporation on the Fracture Toughness Properties of Denture Base Poly(Methyl Methacrylate)" pptx
... towards the innards of these aggregates in which filler particles and the polymer matrix are present Nevertheless, the mechanical properties of the filled samples were degraded after the absorption-desorption ... micrograph of the fracture toughness surfaces of the PMMA matrix at a magnification of 2000X Figure 4: SEM micrograph of fracture toughness surfaces of the 10 w% (BaTiO3-filled) PMMA matrix at 10000X The ... Effect of filler content on the fracture toughness of the PMMA matrix containing 10 wt% BaTiO3 3.2 The Effect of SBF Exposure on Fracture Toughness The mechanical properties of denture-base polymers...
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Báo cáo toán học: "On the Tur´n Properties of Infinite Graphs a" pptx
... if ≤ i ≤ k , , otherwise The meaning of the existence of tB (i) is similar as in Remark 2.3 Proof of Theorem 1.2 We start with an outline of the proof First, we redefine the sequence B by adding ... implies the statement of Theorem 1.2 Proof of Theorem 1.2 In view of Lemma 1.5 we need to show that sC (2k) > 0.255 To this end, we will verify that the limit inferior of the right side of (3) ... take a sequence C of 2k symbols from the proof of Theorem 1.3, for k ≥ 12 and even Then an approach similar to the one used in Theorem 1.3 yields sC (2k) > 1− 2k + Proof of Theorem 1.4 For a...
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Báo cáo y học: "Chondroitin and glucosamine sulfate in combination decrease the pro-resorptive properties of human osteoarthritis subchondral bone osteoblasts: a basic science study" pptx
... then converted to number of molecules, and the values for each sample were calculated as the ratio of the number of molecules of the target gene to the number of molecules of GAPDH Data are expressed ... resorption The additive effect of both compounds at inhibiting bone resorptive activity could then be explained by the sum of the effect of CS on the OPG and RANKL and the effect of one or both of these ... osteoblasts, and the number of differentiated osteoclasts was measured with the tartrate-resistant acid phosphatase (TRAP) using the Bioquant software At the end of the incubation period, the cells...
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Báo cáo khoa học: " Characterization of the RNA-binding properties of the triple-gene-block protein 2 of Bamboo mosaic virus" pdf
... to the RNA, resulting in quenching of the tyrosine fluorescence We then studied the effect of changing the molar ratio of the viral RNA fragment to TGBp2 on the tyrosine fluorescence quenching ... property of TGBp2, which is responsible for the non-specific interaction between TGBp2 and viral RNA On the basis of the known topological properties of TGBp2 [9], we propose that the self-assembly of ... binding of TGBp2 To determine whether the unfused TGBp2 binds viral RNA in a specific or non-specific manner, two non-viral Figure The RNA-binding properties of unfused TGBp2 The RNA-binding properties...
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Evaluation of the anti diabetic properties of averrhoa bilimbi in animals with experimental diabetes mellitus
... simplified the treatment of diabetes It is a competitive inhibitor of the major α-glucosidase enzymes in the brush border of the mucosal cell of the small intestine It inhibits the digestion of the ... modulator of the rate of insulin biosynthesis, through changes in mRNA levels (Kakita et al., 1982) Rat β-cells exhibit a differential regulation of biosynthesis of the two insulin isoforms at the ... Laboratory Officers, Ms Ng Foong Har of the Department of Biochemistry and Ms Annie Hsu, of the Department of Pharmacology and Ms Boon Yoke Yin, Laboratory Officer, Department of Biochemistry, for their...
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Characterisation of the cyclic softening properties of solder
... accurate positioning of the sample at the centre of the jaws, a correct amount of tightening of the jaw bolts was required – overtightening of the jaw caused buckling of the sample, while insufficient ... the name suggests, this method involves application of a measured acceleration pulse, or G-level, to the mounting holes of the board None of the other supporting structures such as the standoffs ... area of the gauge length The engineering strain in the sample is defined by L Lo (3.2) where L is the extension of the sample and Lo is the original length The true strain t, i.e the instantaneous...
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Characterisation of the cyclic softening properties of solder
... accurate positioning of the sample at the centre of the jaws, a correct amount of tightening of the jaw bolts was required – overtightening of the jaw caused buckling of the sample, while insufficient ... the name suggests, this method involves application of a measured acceleration pulse, or G-level, to the mounting holes of the board None of the other supporting structures such as the standoffs ... area of the gauge length The engineering strain in the sample is defined by L Lo (3.2) where L is the extension of the sample and Lo is the original length The true strain t, i.e the instantaneous...
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Thermal properties of the vernacular buildings envelopes: the case of the "Sassi di Matera" and "Trulli di Alberobello
... characteristics of the "Sassi of Matera" and "Trulli of Alberobello" In the South of Italy, the sites of the "Sassi of Matera" (Figure 1a) (classified as humanity world heritage in 1993) and "Trulli of Alberobello" ... if the present structures are characterized with local materials, namely, “Tufo of Matera” for the structures of the "Sassi of Matera," and “Stone of Fasano” for the structures of the "Trulli of ... and the knowledge of the temperature coefficient of the material of which it is made A single measure allows for the determination of diffusivity, thermal conductivity, and specific heat of the...
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Effects of time of heatsetting on the tensile properties of ingeo™ poly (lactic acid) (PLA) fabric
... time of heatsetting (air, solvent or water) and the tension applied to the substrates during heatsetting [11, 12] The essence of this paper is to determine the effect of time of heatsetting on the ... Figure Effect of time of heatsetting on the linearity of load extension in weft direction of knitted Ingeo™ Poly (lactic acid) Figure Mean effect of time of heatsetting on the linearity of load extension ... [PLA] Figure Mean [Ā] of effect of time of heatsetting on the tensile extension EM [%] of Ingeo™ Poly (lactic acid) 3.2 Linearity of load extension curve LT [-] The linearity of load extension curve...
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Tài liệu Psychometric properties of the quality of life scale Child Health and Illness Profile-Child Edition in a combined analysis of five atomoxetine trials pdf
... the SH sub-domain (item 1: ‘‘How often does your child have a lot of fun?’’ and item 4: ‘‘How often does your child feel happy?’’) The items of the SPS sub-domain Psychometric properties of the ... smaller The RA and the PA sub-domains had lower correlations with their domains than most of the other domains at baseline, at endpoint, and Psychometric properties of the CHIP-CE also for the change ... use the sub-domains rather than the domains of the CHIPCE when evaluating ADHD patients This is supported by the factor analysis based on the sub-domains and the correlation analysis of the sub-domains,...
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Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx
... et al / VNU Journal of Science, Mathematics - Physics 25 (2009) 1-7 the magnetic squareness Mr/Ms reduced with J because of the presence of the Fe3Pt Of cause, the kink in the magnetic curves ... duration toff of 0.5 s During ton, FePt nanoparticles were deposited on the surface of the electrode When the current was switched off, an ultrasound was activated to remove the nanoparticles from the ... that of Pt which is similar to the XRD result of FePt foils prepared by cold deformation [20] The Pt peaks in the as-prepared samples are broad due to the small size of the particles Using the...
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Tài liệu Báo cáo " The effect of cobalt substitution on structure and magnetic properties of nickel ferrite " pptx
... of ferrites Ni1-xCoxFe2O4, hence it was the increasing of HC The increasing of HC proved that the soft magnetic property of ferrite NiFe2O4 changed to the hard magnetic property of ferrite CoFe2O4 ... 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, ... 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 increasing of...
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Tài liệu The Electrical Properties of Cancer Cells pptx
... in the ECM, and the pH of the ECM control the filtering aspect of the ECM The ECM is a transit area for the passage of nutrients from the bloodstream into the cells and for toxins released by the ... improve the electrical functions of the ECM Therefore the composition and degree of toxicity of the ECM-glycocalyx interface will affect the electrical field and the flow of biocurrents in the ECM The ... between the inside of the cell and the outside of the cell The difference is known as the membrane potential • Because the membrane potential is created by the difference in the concentration of ions...
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Tìm thêm: khảo sát các chuẩn giảng dạy tiếng nhật từ góc độ lí thuyết và thực tiễn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 nội dung cụ thể cho từng kĩ năng ở từng cấp độ phát huy những thành tựu công nghệ mới nhất được áp dụng vào công tác dạy và học ngoại ngữ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha sự cần thiết phải đầu tư xây dựng nhà máy thông tin liên lạc và các dịch vụ phần 3 giới thiệu nguyên liệu từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng theo chất lượng phẩm chất sản phẩm khô từ gạo của bộ y tế năm 2008 chỉ tiêu chất lượng 9 tr 25