... integration value of acetyl protons at 1.8–2.2 ppm and B is that of OH protons and H-1 to H-6 protons of pullulan moiety observed at more than 3.5 ppm Preparation and characterization of PANs and PA/EPI ... 1. FT-IR spectra of PA (a) and pullulan (b) 500 Stability and in vivo evaluation of pullulan acetate 555 (2008) also reported that the smaller size of NPs may be in favor of longer circulation ... INOVA 400 M NMR, Palo Alto, CA) spectrometry The degree of substitution (DS) was defined as the number of acetyl groups per glucose unit of pullulan It was determined by 1H NMR (Zhang et al.,...
Ngày tải lên: 23/04/2013, 21:38
... America, Call Toll Free: 1-800-366-3891 • Outside of North America: +1-952-938-8080 Fax: +1-952-917-3237 • For a listing of ADC’s global sales office locations, please refer to our website ADC ... Minneapolis, Minnesota USA 55440-1101 Specifications published here are current as of the date of publication of this document Because we are continuously improving our products, ADC reserves ... labels for the front and back of the hinged label SH ADCLS-TFP1RUA Adhesive label for ADC’s 2RU TFP Fiber Panel Each label sheet contains labels for the front and back of the hinged label SH ADCLS-TFP2RUA...
Ngày tải lên: 10/12/2013, 19:15
Tài liệu Stability and Control of Large-Scale Dynamical Systems pptx
... 9.2 Conservation of Energy and the First Law of Thermodynamics 9.3 Nonconservation of Entropy and the Second Law of Thermodynamics 9.4 Nonconservation of Ectropy 9.5 Semistability of Discrete-Time ... t t0 Proof The proof is a direct consequence of Proposition 2.1 with STABILITY THEORY VIA VECTOR LYAPUNOV FUNCTIONS 13 w(r) = W r For completeness of exposition, we provide a proof here based ... establishing exponential stability of the zero solution x(t) to (2.24) v) The proof is identical to the proof of iv) q If V : D Q R+ satises the conditions of Theorem 2.3 we say that V (x),...
Ngày tải lên: 12/02/2014, 16:20
Tài liệu The Decline of Traditional Banking: Implications for Financial Stability and Regulatory Policy doc
... the Bank of England, the Group of Thirty, the Of ce of the U.S Comptroller of the Currency, the Commodity Futures Trading Commission, and, most recently, the U.S Government Accounting Of ce (GAO) ... 94 Source: Board of Governors of the Federal Reserve System, Flow of Funds Accounts 28 FRBNY ECONOMIC POLICY REVIEW / JULY 1995 1960 65 70 75 80 85 90 Source: Board of Governors of the Federal ... of the profitability of traditional banking because it includes the increasingly important nontraditional businesses of banks As a share of total bank income, noninterest income derived from off-balance-sheet...
Ngày tải lên: 16/02/2014, 11:20
Tài liệu Báo cáo khoa học: Combinatorial approaches to protein stability and structure pdf
... occurred with mutation of five out of nine core positions that were randomized with hydrophobic amino acids This type of swapping may be at the root of the amyloidogenicity of some GB1 mutants [95] ... some of the lessons from the de novo design of these types of proteins, which have shed considerable light on the problem of protein stability and conformational specificity [30] The a2 series of ... require three elements: construction of a library of molecular variants, selection or screening of the library for molecules with desired properties and identification of selected variants (Fig 1) Constructing...
Ngày tải lên: 19/02/2014, 12:20
Đề tài " Stability and instability of the Cauchy horizon for the spherically symmetric Einstein-Maxwell-scalar field equations " doc
... Formulation of predictability seems unnatural from the point of view of both physics and the theory of partial differential equations The blow-up of the curvature or even of the C norm of the metric ... light cones For any point P of spacetime, the hyperbolic nature of the equations determines the so-called past domain of influence of P , which in the present case of the vacuum equations is just ... nonzero value of the charge parameter In fact, the previous diagram of the 2-dimensional crosssection of the Kerr solution corresponds precisely to the manifold Q of group orbits of the Reissner-Nordstr¨m...
Ngày tải lên: 05/03/2014, 23:20
Báo cáo khoa học: Purine nucleoside phosphorylases from hyperthermophilic Archaea require a CXC motif for stability and folding pot
... efficiency of the oxidative folding process Recently, on the basis of the physical properties of PDI, a variety of CXXC peptides have been synthesized and assayed [27] The active site of PDI has ... oxidative folding of these enzymes with a concomitant recovery of their catalytic activity Indeed, after 22 h of incubation in the presence of SsCSC and PfCGC, the enzymatic activity of SsMTAPII and ... quantitation of microgram quantities of protein utilizing the principle of protein-dye binding Anal Biochem 72, 248–254 30 Lyles MM & Gilbert HF (1991) Catalysis of the oxidative folding of ribonuclease...
Ngày tải lên: 07/03/2014, 00:20
Báo cáo khoa học: Effect of flanking bases on quadruplex stability and Watson–Crick duplex competition pptx
... various ank lengths of 012 bases in KCl We observed enhancement of uorescence intensity on increasing the concentration of the complementary strand, indicative of a greater extent of quadruplex opening ... concentrations of respective ank length at 25 C for 24 h prior to CD experiments The spectra of preformed quadruplexes at a concentration of 7.5 lm in the absence and presence of equimolar concentrations of ... physiological pH of 6.0 The presence of intramolecular stemloop structures in the C-rich complementary strand leads to the existence of competition and thus hinders opening of the secondary structures...
Ngày tải lên: 07/03/2014, 02:20
Báo cáo khoa học: Thermodynamic stability and folding of proteins from hyperthermophilic organisms doc
... [15] Analysis of a structural model of AmFd suggests that a combination of additional surface ion pairs, the zinc cofactor, and an efficiently packed core govern the high stability of this protein ... (TM of 50 °C, pH 7; DGU of 11 kJÆmol)1, pH 7, 20 °C) [44] This difference in thermodynamic stability correlates with two orders of magnitude slower unfolding of TmCsp as compared to unfolding of ... the fold of the protein, the presence of cofactors, the oligomeric state, and the protein databank accession code (PDB ID) (if known) are provided Protein Organism Tmax (growth) Fold Cofactor...
Ngày tải lên: 07/03/2014, 05:20
Báo cáo khoa học: The natural mutation by deletion of Lys9 in the thrombin A-chain affects the pKa value of catalytic residues, the overall enzyme’s stability and conformational transitions linked to Na+ binding pdf
... thrombin after 180 of treatment is reported in the middle of the figure, whereas the chromatogram of DK9 form is given at the bottom The primed numbers refer to the stable B-chain isomers of DK9 thrombin ... residue in the A-chain of thrombin [1,2] Measurements of the pH dependence of both steady-state amidase activity and binding of the high-affinity inhibitor a-NAPAP showed pKa values of the catalytic ... and simultaneous analysis of the experimental data by grafit software allowed computation of the pKa values of the two groups both in the free and substrate-bound species of thrombin forms, along...
Ngày tải lên: 07/03/2014, 12:20
Báo cáo khoa học: Context-dependent effects of proline residues on the stability and folding pathway of ubiquitin docx
... van’t Hoff analysis are close to %5000 JÆK)1Æmol)1 [58,59] It is not entirely clear whether burial of 66–71% of the hydrophobic surface area of the native state should account for all of the ... capacity and entropy of formation of the TSE for folding (U-à) Reported errors reflect the quality of the nonlinear least squares fit to the experimental data We have used the F45W mutant of yeast ubiquitin ... structural analysis of F45W mutants of the yeast protein confirms this We have explored the context-dependent effects of proline on ubiquitin stability by introducing a number of substitutions at...
Ngày tải lên: 07/03/2014, 16:20
Báo cáo Y học: Processing, stability, and kinetic parameters of C5a peptidase from Streptococcus pyogenes pptx
... beginning of thermal unfolding Kinetic parameters of C5a peptidase: hydrolysis of peptide and pNA substrates domains with different stability Melting of C5a peptidase in the presence of mM CaCl2 ... secretion of the cysteine protease The role of a heterologous intermolecular mechanism in the processing of C5a peptidase precursor may be more prominent during stages of maximal synthesis of streptococcal ... inactivation of C5a peptidase is a result of thermal unfolding of its compact structure The temperature range (40–43 °C) of C5a peptidase maximum activity correlates with the maximum temperature of the...
Ngày tải lên: 08/03/2014, 16:20
FINANCIAL LIBERALIZATION, MACROECONOMIC (IN)-STABILITY, AND PATTERNS OF DISTRIBUTION pptx
... analytics of macro adjustments of the two distinct ( i.e 1980-88/89 and 1989-2000) phases of liberalization is the theme of section I We address the modes of accumulation and resolution of macro ... the rate of growth of output is greater than the rate of growth of employment in a particular sector The second term of the right hand side of equation (4) represents the effect of sectoral employment ... weight of 0.243 This sector displays an output share of 27.1% and an employment share of 1.3% However, with an employment growth rate of –5.2%, the productivity by reallocation of labor term of this...
Ngày tải lên: 15/03/2014, 19:20
Báo cáo khoa học: Stability and fibril formation properties of human and fish transthyretin, and of the Escherichia coli transthyretin-related protein potx
... samples, at any of the pH intervals tested (pH 2.0–12.0; data not shown) The white scale bar is 500 nm (B) EM images of fibrils of hTTR (a) and sbTTR (b) incubated at pH 4.5 (C) CR staining of hTTR incubated ... seems to be more resistant to variations of pH However, the SDS ⁄ b-ME treatment generally dissociated a larger fraction of the ecTRP protein material than of hTTR and sbTTR into monomeric structures ... volume of the corresponding number of monomeric units, DV, is negative in all cases, demonstrating that the protein density increases slightly upon tetramerization Analysis of the number of hydrogen...
Ngày tải lên: 16/03/2014, 01:20
Báo cáo khoa học: Crystal and solution structure, stability and post-translational modifications of collapsin response mediator protein 2 pdf
... structure of human CRMP-2 in the absence of calcium Instead of calcium, magnesium ions were required to ˚ grow the crystals, resulting in a 1.9 A structure of CRMP-2 being obtained The effects of Ca2+ ... the sample in the presence of CaCl2, indicating the possibility of subtle calcium-dependent movements of the subunits, or the presence of dimeric or monomeric forms of CRMP-2 in the sample without ... explain the success of crystallization experiments only in the presence of Ca2+ or Mg2+ Analysis of ion binding by surface plasmon resonance To obtain an idea of the extent and affinity of divalent cation...
Ngày tải lên: 16/03/2014, 06:20
power system stability and control chuong (1)
... the reaction of the current during the sag can help determine the source of the sag If the current doubles when the voltage sags 10%, then the cause of the sag is on the load side of the current ... monitor for the job, it is necessary to have an idea of the type of disturbance to be recorded, and an idea of the operating characteristics of the available disturbance analyzers For example, ... delivered to the equipment Manufacturers of recording equipment use a variety of techniques to reduce the volume of the data recorded The most common method of data reduction is to record Min=Max=Average...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (2)
... in 2003 Professor Grigsby is a fellow of the Institute of Electrical and Electronics Engineers (IEEE) During 1998–1999 he was a member of the board of directors of IEEE as director of Division ... distinguished professor, later as the Alabama power distinguished professor, and currently as professor emeritus of electrical engineering He also spent nine months during 1990 at the University of Tokyo ... particular topic of interest is not included in this list, please refer to the list of companion volumes seen at the beginning of this book In reading the individual chapters of this handbook,...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (3)
... this rate is too high A royalty of 12.5% of wholesale amounts to perhaps 6% of retail Cutting the royalty in half would have the potential of reducing the price of gasoline about 3% In a market ... 1.2 Wind Variability One of the most critical features of wind generation is the variability of wind Wind speeds vary with time of day, time of year, height above ground, and location on the earth’s ... small) for perhaps 10% of the time, rated for perhaps another 10% of the time, and at some intermediate value the remaining 80% of the time This variability means that some sort of storage is necessary...
Ngày tải lên: 21/03/2014, 12:11
power system stability and control chuong (4)
... hour of turbine-generator operation The MW ratings and time ratio are influenced by the utility’s load curve, and the price of off-peak power For example, the CAES plant in Germany requires h of ... temperatures of 5728F (3008C) The sodium component of this battery explodes on contact with water, which raises certain safety concerns The materials of the battery must be capable of withstanding ... applications The main features of the five types of fuel cells are summarized in Table 2.1 2.2.3 Fuel Cell Operation Basic operational characteristics of the four most common types of fuel cells are discussed...
Ngày tải lên: 21/03/2014, 12:11