focus on the regulation and correction mechanisms of chromosome to microtubule attachments
Studies on the molecular and cellular mechanisms underlying the process of learning and memory formation body
... inhibited by tonic Gi/o protein activity in the presynaptic terminal Based on the fact that the tonic activity of the G protein is a consequence of the tonic activation of A1 adenosine receptors, removal ... their corresponding coronal brain diagrams in the Paxinos rat brain atlas (Figure 3.2) This was done to confirm the locations of the bregma and to ensure that the MRI slices corresponded to the ... against the antigen of interest to the desired concentration in antibody diluents Add the primary antibody solution onto the tissue sections and incubate overnight (~16 hr) at 4° C 38 5) On the second...
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Studies on the molecular and cellular mechanisms underlying the process of learning and memory formation
... Average concentrations and standard errors of Fe Cu and Zn in different layers and background levels, based on seven sections from seven rats 100 List of Figures Figure 1.1 Basic anatomy of the ... There are two parts of work which have been done in this thesis to investigate the underlying mechanisms of learning process and long-term memory formation In part I, two projects have been focused ... Introduction of the hippocampus……………………………… 1.1.1.2 Introduction of the mossy fibers………………………………… 1.1.2 Histology of Mossy fiber pathways……………………………………… 1.1.3 Anatomic plasticity of the mossy...
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Báo cáo " Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose " potx
... end of the reaction was about 2.7 This condition facilitated the formation of gluconolactone and disaccharide and inhibited the catalyst activity [2] So, we should add alkaline solution continuously ... products of D-glucose oxidation on PS-1 catalyst On the other hand, the reaction on Pt/SBA15 catalysts with pH control not only showed a high conversion, but also high D-gluconic acid selectivity This ... many chemical conversions [4-6] (b) (c) (d) (e) Figure Transmission electron micrographs of SBA-15 in the direction of pore axis (a)(100) and in the direction perpendicular to the pore axis SBA-15...
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Báo cáo khoa học: Context-dependent effects of proline residues on the stability and folding pathway of ubiquitin docx
... for all of the observed DCpà for folding, and how other factors relating to desolvation of polar groups, conformational dynamics and hydrogen bonding also contribute [60] The observation of a positive ... region (residues 21–35) N terminal to the X37 and X38 mutation sites, and the sequence of the short helix (residues 38–40) and fourth strand of b-sheet (residues 42–46) on the C-terminal side of ... angles Thus, we conclude that the Pro to Ala substitutions are not significantly perturbing the backbone conformation and dynamics of the protein around the mutation sites and in the adjacent a-helix...
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Báo cáo khoa học: Effects of salt on the kinetics and thermodynamic stability of endonuclease I from Vibrio salmonicida and Vibrio cholerae potx
... study, the effect of NaCl concentration on the kinetic constants and thermodynamic stability of VsEndA and VcEndA was investigated In addition, the effects of reciprocal mutations of two non-conserved ... boundary conditions, and the resulting grid was adopted as the boundary condition for one further focused calculation The protein molecules occupied 90% of the box in the final calculations The molecular ... of the thermodynamic data, together with mutational and structural investigations, was used to gain an insight into halotolerant adaptation Results Protein production and thermal stability The...
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Báo cáo khoa học: Isothermal unfolding studies on the apo and holo forms of Plasmodium falciparum acyl carrier protein Role of the 4¢-phosphopantetheine group in the stability of the holo form of Plasmodium falciparum acyl carrier protein docx
... estimated on the basis of the linear regression of the fraction number of the molecular mass markers cytochrome c (CyC), carbonic anhydrase (CA), and BSA From the calibration curve of the sucrose ... the interaction of the 4Â-PP group with the polypeptide backbone and its effect on the stability of holo-ACP The average major conformation of the holo-ACP NMR structure was analyzed for ligandprotein ... interactions, and the blue lines denote CHO hydrogen bonds The 4Â-PP group is linked to the protein by the Ser37 O-c atom Only residues 3138 of the protein make extensive contacts with the cofactor...
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Báo cáo khoa học: Effects of cardiomyopathic mutations on the biochemical and biophysical properties of the human a-tropomyosin docx
... chain, as demonstrated by the biophysical assays Our studies have provided additional contributions to the understanding of the effects of these mutations on the clinical symptoms of patients ... SDS/PAGE The actomyosin S1 Mg2+ ATPase was determined in the absence of troponin as a function of tropomyosin concentration, and in the presence of troponin and Ca2+ concentration varying from 10)6 to ... charge of Tm The two other mutations (A63V and K70T) are located at the N-terminal region, far from the troponin binding region and occur at the g position of the repeat The K70T mutation also...
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influence of binders on the sensing and electrical characteristics of wo3-based gas sensors
... by changing the distribution of interface states and the electron occupation on them In some cases, even the concentration of the adsorbed gas ions can be measured from the change of potential ... adsorptionrdesorption kinetics of NO x gas region width, and e is the permittivity of the semiconductor From the charge neutrality condition between the interface charge Qi and the space charge in depletion ... dangling bond energy plays the role of neutrality level for the intimate contact between covalent semiconductors w13x The interface formed on an etched semiconductor surface andror on the GB of a...
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Báo cáo "Effects of Zn content on the magnetic and magnetocaloric properties of Ni-Zn ferrites " pdf
... attributed to the magnetic frustration arising from the co-existence of competing antiferromagnetic and ferromagnetic interactions The separation of FC and ZFC curves at low temperatures could be considered ... in Fig 2, where ϕ is the angle between direction of magnetic moment of A ions and magnetic moment of B1 and B2 ions Comparing MSt and MSe from Tab 2, we could determine the canting angle between ... content in the samples due to larger ionic radius of Zn2+ ion (0.82 Å) substituted for Ni2+ ion (0.78 Å) The X-ray density, the real density as well as porosity of ferrites also determined and...
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Báo cáo khoa học: Effects of a tryptophanyl substitution on the structure and antimicrobial activity of C-terminally truncated gaegurin 4 doc
... structures randomly showed a short a helical conformation in the C-terminal part The disordered conformation in the C-terminal region of D24)37 GGN4 is probably due to the break of the peptide bond at ... matching the backbone atoms in residues I2V18, and the mainchain (N, Ca, C¢, and O) and the tryptophan side chain atoms are represented portions Position 16 is at the border between the loop region ... from the methylene protons of SDS [29], was observed Figure clearly depicts the intermolecular NOE cross-peaks between the SDS methylene protons and the peptide backbone amide protons of the F9,...
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EFFECT OF STORAGE TEMPERATURES ON THE PHYSIOLOGICAL AND BIOCHEMICAL PROPERTIES OF HYLOCEREUS POLYRHIZUS
... diOMe flavone (Bui et aI., 2004) There were studies that only compare the effect of drying methods alone (Chan et aI., 2009); and also study on the optimization of extraction conditions on herbs ... together for the completion of the lab work and given their help to complete my thesis I would also like to thank Teoh Hang Boon and Choi Yik Huey for their guidance in using the response surface ... 2007) Due to optimization of both drying and extraction methods on herb had not being studied, the main ·objective of this study was to study the effect of extraction and drying methods on antioxidant...
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effects of recognition versus disclosure on the structure and financial reporting of share based payments
... compensation by analyzing time series changes in the terms of option contracts and for substitution towards other forms of compensation I focus primarily on changes in the number of option grants ... inputs Moneyness is the relation between the market stock price (on the grant date in my paper) and the exercise price of the option to disclosed fair value inputs, the distribution of all three ... Prior to FAS 123, proxy statements included the number of 15 options granted to the top five executives, the percentage of options granted to each of the top five executives as a percent of total...
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báo cáo hóa học: " e differential mediating effects of pain and depression on the physical and mental dimension of quality of life in Hong Kong Chinese adults" pptx
... University of Hong Kong, Kowloon Tong, Hong Kong 2Department of Social Work, Hong Kong Baptist University, Hong Kong 3Department of Community Medicine, The University of Hong Kong, Pokfulam, Hong Kong ... about 75% of the effect of pain on QoL impacted through the mediator of depression, and 25% of the effect was direct Statistically, the mediation of depression (Model 4: 75%) exerted the strongest ... effect of pain on the depression-QoL pathway was 0.043, suggesting that about 28% of the effect of depression on the mental aspect of QoL went through the mediator of pain, and over 72% of the effect...
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A review of the chemical and physical mechanisms of the storage stability of fast pyrolysis bio oils
... undergoes condensation reactions with the evolution of water, analogous to the condensation of ortho-methylol phenol, i.e., with linkages at the and ring positions (adjacent to the oxygen of the furan ... amount of CO2 formed (a 7% conversion of the carbon to gas) and 34% by volume yield of an aqueous phase containing 8.2% of the carbon The oxygen content of the bio-oil was reduced from 38% to 15% ... combination of contributions from the nonpolar or dispersion interactions, the polar interactions, and the hydrogen bonding interactions of the molecules: δt2 = δd2 + δp2 + δh2 where δt is the total...
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Báo cáo hóa học: " Effect of growth temperature on the morphology and phonon properties of InAs nanowires on Si substrates" doc
... of the TO, SO, and LO phonon mode of InAs NWs confinement and the relaxation of q = selection rule However, the diameter of our InAs NWs is very large (> 20 nm) and shows almost no quantum confinement ... explain the observed downshift in phonon frequency of LO and TO phonon peaks Another one is the thermal anharmonicity effect caused by temperature change Anharmonicity entails the participation of ... image of the nanowire (e) High-resolution image of a portion of the nanowires The inset of (a) shows a higher magnification image of sample A; the inset of (b) is a top view image; the inset of...
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Báo cáo hóa học: "Effect of the carbon nanotube surface characteristics on the conductivity and dielectric constant of carbon nanotube/poly(vinylidene fluoride) composites" doc
... due to the reduction of the surface conductivity of the CNTs due to the oxidation process [8], and is similar for all the functionalized composites Further, the increase of surface area due to the ... the nanocomposites prepared with the different functionalized CNTs The reduction of the electrical surface conductivity of the CNT due to the oxidation process, together with an increase of the ... dielectric constant at room temperature and 10 kHz for the PVDF/CNT original composites for a given concentration and a shift of the percolation threshold to higher concentrations On the other hand,...
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Báo cáo hóa học: " Effect of the Nd content on the structural and photoluminescence properties of silicon-rich silicon dioxide thin film" pdf
... non-resonant excitation brings to light the sensitizing effect of Si-np towards Nd3+ ions The evolution of the integrated PL intensity of the Sinp PL band and the 920-nm PL peak is shown in the ... presents the evolution of the FTIR spectra of samples annealed at 1100 °C as a function of the Nd concentration One can observe that the LO band Page of intensity, which is constant at low Nd concentrations ... positions of the LO3 and TO3 vibration modes, and the LO3 /TO3 intensity ratio, as a function of the annealing temperature One can observe that, while the annealing temperature was increased, the TO3 and...
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Báo cáo hóa học: " Impacts of Post-metallisation Processes on the Electrical and Photovoltaic Properties of Si Quantum Dot Solar Cells" potx
... as Rsh of the cell is in the order of MX.cm2 The short circuit current increases by a factor of three due to the decrease of Rs Contact and Sheet Resistances To identify the origin of the large ... existence of localised Al shunts lying across the p-type and n-type regions as the annealing improves the contact of the Al shunts to both p- and n-regions of the cell thus shorting the cell more ... times The contact resistance is small in comparison with the semiconductor sheet resistance, as shown in Fig Therefore, the reduction of series resistance is largely due to the reduction of the...
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Báo cáo hóa học: " Influence of Uniaxial Tensile Stress on the Mechanical and Piezoelectric Properties of Short-period Ferroelectric Superlattice " potx
... reflect the slope of polarization versus stress curves The enhancement of piezoelectricity corresponds to the maximum slope of the curve of Fig 4a at rc, it is the change of magnitude of polarization ... by the Ti2-O6 bond After the bond breaks, the system converts into a planar structure with alternating layers On the other hand, Fig 3a and b show that the valence charge density becomes more and ... than the theoretical value of 0.81 C/m2 of ground state PTO, but slightly larger than the value of 0.28 C/m2 of tetragonal BTO (the other theoretical value is 0.26 C/m2 [28]), which supports the...
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