bài 15 tiêu hóa
VIBRATION AND SHOCK
Ngày tải lên :
25/10/2013, 13:15
... 10.2 102 020 102 000 = 9-^A 10 nm 100 nm /mi 10 ptm 100 fjan mm 10 mm 1m fN (Hz) 980 576 498 157 .6 49.8 15. 76 4.98 0.498 Note, from Eqs (23.2a) and (23.2b), that fN depends on 6, and thus on both ... by "optical wedge" device Fig 23 .15 Vibration calibration When one wants an optical indication that D has reached a particular value, the scheme of Fig 23 .15 is useful Two parallel lines, perpendicular ... appear as in Fig 23 .15 To adjust the D of a shaker to, say, A in., increase shaker power until two gray bands separated by a white band, all 1A in high, appear as in Fig 23.15b For a D of Vi in.,...
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Bài giảng Chapter 17 Free Energy and Thermodynamics
Ngày tải lên :
28/11/2013, 01:12
... CO(g) Ca(s) Cu(s) Fe(s) H2(g) H2O(g) HF(g) HBr(g) I2(s) N2(g) NO(g) Na(s) S(s) 28.3 152 .3 2.43 197.9 41.4 33.30 27 .15 130.58 188.83 173.51 198.49 116.73 191.50 210.62 51.45 31.88 Al2O3(s) Br2(g) ... W is the number of energetically equivalent ways, unitless Tro, Chemistry: A Molecular Approach 15 W (microstates possible) Energetically Equivalent States for the Expansion of a Gas Tro, Chemistry: ... Fe2O3(s) H2O2(l) H2O(l) HCl(g) HI(g) I2(g) NH3(g) NO2(g) O2(g) SO2(g) -1669.8 +30.71 -393.5 -635.5 -156 .1 -822.16 -187.8 -285.83 -92.30 +25.94 +62.25 -46.19 +33.84 -296.9 Entropy • entropy is a thermodynamic...
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Tài liệu Báo cáo khoa học: Crystal structure of the cambialistic superoxide dismutase from Aeropyrum pernix K1 – insights into the enzyme mechanism and stability pdf
Ngày tải lên :
14/02/2014, 22:20
... et al Crystal structure of SOD from A pernix K1 Introduction Superoxide dismutases (SODs; EC 1 .15. 1.1) play a protective role against oxidative stress by catalyzing disproportionation of the ... target of several studies investigating primitive antioxidation mechanisms in aerobic life [11 15] A pernix K1 produces a hyperthermophilic, cambialistic SOD [16] that exhibits more activity ... c = 76.85 b = 91.81 50.0–1.35 (1.40–1.35) 1.94 4.8 (36.1) 98.0 (97.0) 1179512 164370 7.3 (6.9) 15. 9 (5.8) 13.8 a = 69.06 b = 71.76 c = 76.40 b = 91.72 50.0–1.48 (1.53–1.48) 1.92 7.7 (38.3) 95.9...
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Tài liệu Báo cáo khóa học: Mutations in the hydrophobic core and in the protein–RNA interface affect the packing and stability of icosahedral viruses doc
Ngày tải lên :
19/02/2014, 12:20
... 7.5) buffer using a 0.1 cm pathlength quartz cuvette The spectropolarimeter used was a Jasco J- 715 1505 model Infectivity assays An overnight culture of E coli was diluted : 20 (v/v) in LB medium ... measurements, the sample was excited at 320 nm and the emission measured from 315 to 325 nm Standard buffer: 50 mM Tris /150 mM NaCl (pH 7.5) Fluorescence data points are the average and standard deviation ... H.N., Stormo, G & Uhlenbeck, O.C (1987) RNA binding sites of R17 coat protein Biochemistry 26, 156 3 156 8 10 Johansson, H.E., Dertinger, D., LeCuyer, K.A., Behlen, L.S., Greef, C.H & Uhlenbeck,...
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Tài liệu Báo cáo khoa học: Relationships between structure, function and stability for pyridoxal 5¢-phosphate-dependent starch phosphorylase from Corynebacterium callunaeas revealed by reversible cofactor dissociation studies doc
Ngày tải lên :
19/02/2014, 16:20
... 1.95 0.12 8.6 0.2 11.2 2.0 12.2 2.7 0.49 0.04 Phosphite (10) 15. 0 0.2 1.08 0.11 subunit-to-subunit interactions in CcStP [15, 17,18] is a key factor driving the resolution of the holo-enzyme ... phosphorylation signals converge at the catalytic center in glycogen phosphorylases Structure 5, 151 1152 3 23 Chang, Y.C., McCalmont, T & Graves, D.J (1983) Functions of the 5Â-phosphoryl group of ... in the structural rearrangement are located within the predicted dimer contact region of CcStP [15] Reversible subunit dissociation experiments should thus be useful to explore structural requirements...
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VITAMINS IN FOODS Analysis, Bioavailability, and Stability potx
Ngày tải lên :
08/03/2014, 00:20
... 137 138 138 139 139 139 139 139 141 142 142 143 143 143 145 146 149 149 149 150 150 150 151 151 152 154 154 155 155 156 7.5.2.1 Thiaminases 7.5.2.2 Polyphenols ... Chapter 15 Vitamin C 15. 1 Background 289 15. 2 Chemical Structure, Biopotency, and Physicochemical Properties 290 15. 2.1 ... 290 15. 2.2 Physicochemical Properties 15. 2.2.1 Solubility and Other Properties 15. 2.2.2 Stability in Aqueous Solution 15. 3 Vitamin...
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Báo cáo khoa học: Local changes in the catalytic site of mammalian histidine decarboxylase can affect its global conformation and stability pptx
Ngày tải lên :
08/03/2014, 08:20
... decarboxylase and synthesis of histamine by human small cell lung carcinoma Am J Pathol 160, 156 1 156 5 Nathan, C (2002) Points of control in inflammation Nature 420, 846–852 Medina, M.A., Urdiales, ... (2000) In vitro study of proteolytic degradation of rat histidine decarboxylase Eur J Biochem 267, 152 7 153 1 ´ ´ Rodrı´ guez-Agudo, D., Sanchez-Jimenez, F & Medina, M.A (2000) Rat histidine decarboxylase ... enzyme and is crucial for the successive increase in the pKa during catalysis Biochemistry 37, 150 76 150 85 Guex, N & Peitsch, M.C (1997) SWISS-MODEL and the SWISSPDBVIEWER: an environment for comparative...
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Arsenic speciation in environmental and biological samples extraction and stability studies
Ngày tải lên :
15/03/2014, 23:49
... Gurleyuc, J Tyson, P Uden, Analyst 126 (2001) 151 1 151 8 [14] D.T Heikemper, N.P Vela, K.R Stewart, C.S Westphal, J Anal At Spectrom 16 (2001) 299–306 [15] P Quevauviller, Trends Anal Chem 19 (2000) ... found in Dorm-2 (AsB: 15. 84 ± 0.5 g g−1 As; DMA: 0.66 ± 0.04 g g−1 As) was close to those certified values (AsB: 16.4 ± 0.5 g g−1 As) The As species concentration for NIST 155 8 (As(III) 75g g−1 ... Chatterjee, Talanta 51 (1999) 303–314 [5] P.M Yehl, H Gurleyuk, J.F Tyson, P.C Uden, Analyst 126 (2001) 151 1 151 8 [6] C Hymer, A Caruso, J Liq Chromatogr Rel Technol 25 (2002) 639–653 [7] J Alberti, R Rubio,...
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BIS Papers No 62 Financial sector regulation for growth, equity and stability doc
Ngày tải lên :
23/03/2014, 02:20
... “Financial Sector Regulation for Growth, Equity and Stability in the Post Crisis World” 15 16 November 2011, Mumbai Day – 15 November 2011 11.45–12.45 Inaugural session - Addresses by D Subbarao, Governor, ... BIS, on "Financial Sector Regulation for Growth, Equity and Stability in the Post Crisis World" on 15 16 November 2011 in Mumbai The conference provided a forum for central bankers, financial sector ... organised by the BIS and the Centre for Advanced Financial Research and Learning (CAFRAL) in Mumbai on 15 16 November 2011 The views expressed are those of the authors and not necessarily reflect the...
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Báo cáo khoa học: Increased amylosucrase activity and specificity, and identification of regions important for activity, specificity and stability through molecular evolution doc
Ngày tải lên :
23/03/2014, 11:20
... A226G C469G, G691T,C1441T C698T,C1239T,G1597A G184A, C1317T, G1516A G99A, G495A, A 1159 G G1221T, G1839T A680G C123T, G1165C, A1509T C58T, G444T, T1793C N76D P157A, D231Y P234L, G554S E62K, D506N ... oligosaccharide-binding sites (SB and OB, respectively, Fig 1) Combined with biochemical and mutagenic studies [12 15] this allowed elucidation of the enzyme’s features implicated in the amylosucrase reaction mechanism ... specific amylosucrase features are involved in catalysis 20 Regions involved in reaction specificity 15 25 35 45 55 65 Temperature (°C) Fig Temperature optima of the variants Wild-type (s), H4 (n),...
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Báo cáo khoa học: Thermodynamic analysis of the unfolding and stability of the dimeric DNA-binding protein HU from the hyperthermophilic eubacterium Thermotoga maritima and its E34D mutant pdf
Ngày tải lên :
23/03/2014, 12:20
... bottom): 2, 5, 7, 10, 15, 20, 30, 45, 60, 75, 120, 150 and 180 lM The symbols in (B) correspond to various concentrations between and 180 lM at four different temperatures: 10, 15, 20 and 25 °C (h, ... 25.0 16.0 15. 4 101.9 98.0 97.8 94.2 74.4 73.0 ± ± ± ± ± ± 2 2 3 ± ± ± ± ± ± 0.3 0.3 0.3 0.3 0.4 0.4 DDGU,25 (kJÆmol)1) ± ± ± ± ± ± 0.2 0.2 0.2 0.2 0.3 0.3 1.8 ± 0.3 1.6 ± 0.3 0.6 ± 0.4 150 2 J Ruiz-Sanz ... temperature alone and not on pH (Appendix) Ó FEBS 2004 150 0 J Ruiz-Sanz et al (Eur J Biochem 271) CD measurements CD measurements were made with a Jasco- 715 spectropolarimeter (Japan) equipped with a...
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Báo cáo khoa học: Solution structure and stability of the full-length excisionase from bacteriophage HK022 pot
Ngày tải lên :
23/03/2014, 15:21
... heteronuclear 1H-15N HartmannHahn-multiple quantum coherence and nuclear Overhausermultiple quantum coherence spectroscopy: application to interleukin b Biochemistry 28, 6150 – 6156 39 Davis, D.G ... short starvation period (20 min), the cells were supplemented with either 1.0 gÆL)1 of 15NH4Cl or 1.0 gÆL)1 of 15NH4Cl, 0.5 gÆL)1 of 13 C-labelled glucose and 1.5 gÆL)1 of 13C-labelled glycerol Cell ... mm tripleresonance (1H/13C/15N) probes with XYZ-gradient capability Proton chemical shifts were referenced relative to internal 4,4-dimethyl-4-silapentane-1-sulfonate; 15N and 13 C chemical shifts...
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Báo cáo Y học: Domain organization, folding and stability of bacteriophage T4 fibritin, a segmented coiled-coil protein docx
Ngày tải lên :
24/03/2014, 03:21
... 258 182 120 108 75 58 )9280 )3610 )3170 )1660 – )1216 )630 ) 515 )7600 )3080 )2640 )1170 )687 )656 – – – )530 )530 )490 – )560 – ) 515 0.13 0.39 0.42 0.88 0.91 0.81 – – The crystal structure of ... USA) solution in Tris/EDTA buffer was added; the concentrated protein solution was kept on ice for 15 After centrifugation, ammonium sulfate was added to the supernatant to a final concentration of ... against Tris/EDTA buffer and stored at °C The E, S1 and F proteins were additionally applied to a 15- mL DEAE–Sephacryl column and eluted with a linear gradient of NaCl Fractions containing proteins...
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Báo cáo Y học: Cytochrome c from a thermophilic bacterium has provided insights into the mechanisms of protein maturation, folding, and stability potx
Ngày tải lên :
24/03/2014, 03:21
... subsequent biochemical study indicated that E coli CcmC can interact with CcmE during heme transfer [15] It was predicted that heme transfer occurs in the periplasm in vivo A site-directed mutagenesis ... coli [23,36] An apo-(HT c-552) variant carrying mutations at the heme covalent binding site (C12A/C15A) has also been expressed in the E coli cytoplasm This gene product was found to have a compactly ... Cytochromes c555 from the hyperthermophilic bacterium Aquifex aeolicus Ó FEBS 2002 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 Cytochrome c structure and stability (Eur J Biochem 269) 3361...
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Islamic vs. Conventional Banking: Business Model, Efficiency and Stability ppt
Ngày tải lên :
29/03/2014, 08:20
... [0.069] 0.014 0.02 0.003*** [0. 015] [0.013] [0.001] 0.02 4.440***-0.265*** [0.706] [0.562] [0.038] 38.116*** 9.165*** 2.413*** [3.112] [2.264] [0 .153 ] x 29117 0.47 x 29 015 0.1 x 29181 0.11 2.505*** ... provisions loans (7) (8) -5.887*** [1.962] -1.356*** [0 .157 ] 0.035*** [0.011] 3. 115* ** [0.165] 3.234*** [0.272] -0.253*** [0.056] -3. 615* ** [1.212] 0.006 [0.016] -3.982*** [0.726] 0.018 [0.014] ... [0.018] -0.018 [0.026] -2.168 [2.418] 0 .156 *** [0.053] -0 .155 *** [0.048] P-value test (1)=(2) 0.022 0.047 0.000 0.002 0.000 Number of observations R-squared 158 16 0.08 28995 0.07 28749 0.60 27835...
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Báo cáo khoa học: Metal ions modulate the folding and stability of the tumor suppressor protein S100A2 docx
Ngày tải lên :
30/03/2014, 02:20
... second derivative 0.06 153 0 ΔAbs (a.u.) 0.04 0.02 0.00 –0.02 –0.04 153 0 cm–1 155 2 cm–1 1622 cm–1 1651 cm–1 1.0 0.08 155 2 –0.06 0.8 0.6 0.4 0.2 0.0 1651 –0.08 1700 1650 1600 155 0 Wavenumber (cm–1) ... 0.06 0.04 0.02 153 0 0.00 –0.02 –0.04 –0.06 –0.08 –0.10 –0.12 –0.14 155 2 80 90 80 90 1608 cm–1 1622 cm–1 1635 cm–1 1693 cm–1 1.0 % Variation second derivative ΔAbs (a.u.) C 0.14 150 0 0.8 0.6 0.4 ... In both conditions, denaturation consisted of transition from a-helical ( 1650 and 155 0 cm)1) to random (152 5 cm)1) and b-structures ( 1622 cm)1) (Fig 4A,C) The latter vibration is associated...
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Báo cáo khoa học: Tryptophan 243 affects interprotein contacts, cofactor binding and stability in D-amino acid oxidase from Rhodotorula gracilis ppt
Ngày tải lên :
30/03/2014, 11:20
... 0.03 95 ± 2d 1.6 ± 0.1d 135 940 230 900 340 465 370 715 0.04 ± 0.01 108 ± 1.4 ± 0.1 As described previously [9] b As described previously [15] c As described previously [7] of a large excess of ... properties of the wild-type DAAO [15] The Trp243 DAAO mutants were expressed using the strain BL21(DE3)pLysS Escherichia coli as host and purified as reported previously [15] ; however, the W243I mutant ... fluorescence change at 340 nm during the binding of FAD to wild-type (d) and W243Y (n) apoproteins at 15 °C and pH 7.5 Proteins were used at a concentration of 0.1 lM (0.004 mgÆmL)1) in 50 mM potassium...
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Báo cáo khóa học: High level cell-free expression and specific labeling of integral membrane proteins doc
Ngày tải lên :
30/03/2014, 13:20
... in 15 mM Tris/HCl, pH 6.5; mM dithiothreitol, 150 mM NH4Cl and 20 lgÆmL)1 circular plasmid DNA (pUC18) were suspended in 980 lL of outside buffer (15 mM Tris/HCl, pH 8.5; mM dithiothreitol; 150 ... DDM in 10 mM sodium phosphate, pH 7.4 (B) 15 lM SugE in 15 mM sodium phosphate, pH 6.8, mM dithiothreitol with various detergents (C) 15 lM TehA in 15 mM sodium phosphate, pH 6.8, mM dithiothreitol ... the conventional in vivo expression NMR spectroscopy 17 Two dimensional 1H,15N correlated spectra of [98% 15 N]Gly,[98% 15N]Ala labeled samples of 0.1 mM EmrE and 0.5 mM SugE in CDCl3/CD3OH/H2O...
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