ethylene− and vinylidene−ruthenium complexes for atrp
Progress in Controlled Radical Polymerization: Mechanisms and Techniques pot
Ngày tải lên :
14/03/2014, 09:20
... control requires 13 hours for PMMA and 2.8 days for polystyrene (PSt)! Blue (italic underline) entries show the effect of DPT for 500 and 100 values for PMA at 90% conversion The former requires minutes ... relationship between reaction time and conversion for DCF = 5%, 10% and 20% respectively Figure Contour maps for DCF as a function of conversion and polymerization time for different monomers (a) MA; ... opportunities for π-stacking and solvent interactions, and these may be responsible for the deviations of the aromatic monomers M19 and M22 from their corresponding non-silicon containing counterparts, and...
- 339
- 1.6K
- 0
Tài liệu Dramatic Attenuation in Fiber Access Terminals at Low Temperatures doc
Ngày tải lên :
10/12/2013, 20:15
... customer satisfaction References O.S Gebizlioglu, "Time- and Temperature-Dependent Material Behavior and Its Impact on LowTemperature Performance of Fiber Optic Cables." (1998) Web Site: www.adc.com ... portfolio as an important corporate asset and vigorously enforces its patents Products or features contained herein may be covered by one or more U.S or foreign patents An Equal Opportunity Employer ... include the sub-unit material, the sub-unit dimensions (specifically the inner and outer diameters), the type of gel used, and the amount of extra fiber within a sub-unit length Any or all of these...
- 2
- 308
- 0
Tài liệu Báo cáo khoa học: High activity of human butyrylcholinesterase at low pH in the presence of excess butyrylthiocholine pptx
Ngày tải lên :
20/02/2014, 23:20
... is unprotonated and that therefore only 10% of the activity will remain Our results in Fig show that for A328F 71% remains, for A328I 32% remains, for wild-type 40% remains, and for A328G 42% remains ... for the dependence of rate on pH involving a single pKa [29]: k À kA pH ¼ pK a À log kH À k The term k stands for the observed rate, kA stands for the limiting rate at high pH, and kH stands ... min)1 for wild-type, 55 200 ± 1600 min)1 for A328F, and 28 700 ± 700 min)1 for A328W Similar observations were made for wild-type human and B fasciatus AChEs and their mutants modified on the equivalent...
- 10
- 680
- 0
Báo cáo khoa học: Unusual stability of human neuroglobin at low pH – molecular mechanisms and biological significance docx
Ngày tải lên :
07/03/2014, 02:20
... the absence of exogenous ligands, both the ferrous and ferric forms of Ngb are hexacoordinated, with the proximal His64 being the endogenous ligand Therefore, Ngb ligand binding requires the displacement ... at 287 nm and the minimum at 295 nm were used to calculate the Tyr exposure shown in Fig 3B The value of a was calculated for Ngb and Mb in both the holo and apo forms under neutral and acid solvent ... denaturation of the holo forms of Ngb (open circles) and Mb (open triangles) was performed in 20 mM Tris ⁄ HCl and 0.15 M NaCl (pH 7.0), and that of apoNgb (filled circles) was performed in 0.01 M HCl...
- 13
- 495
- 0
Báo cáo khoa học: Different roles of two c-tubulin isotypes in the cytoskeleton of the Antarctic ciliate Euplotes focardii Remodelling of interaction surfaces may enhance microtubule nucleation at low temperature doc
Ngày tải lên :
07/03/2014, 04:20
... consensus included the V of c-T1 and K of c-T2 for G at position 76, A of c-T1 ⁄ c-T2 for the consensus P at position 81, G for S at position 84, F for Y at position 92, and S for A at position 94 Together, ... triplets 327–321 Amplification was performed using standard conditions: 30 cycles at 94 °C for 50 s, 45 °C for min, and 72 °C for A final incubation at 72 °C for was added to the last cycle The ... resuspended in distilled water, and used as template for PCR; the program was 30 cycles at 94 °C for 50 s, 48 °C for min, and 72 °C for A final incubation at 72 °C for was added to the last cycle...
- 16
- 467
- 0
Changes in the Economic Value of Variable Generation at High Penetration Levels: A Pilot Case Study of California pot
Ngày tải lên :
08/03/2014, 06:20
... 1.25 for CSP0 and 2.5 for CSP6 DA forecasts of solar insolation from the WWSIS are also converted into DA forecasts of generation for PV and solar field heat for CSP resources DA solar forecasts ... load and DA forecasts of VG Similar AS requirements are applied for wind and solar (PV and CSP0 ); a reasonable assumption based on previous analysis of 1-min data for wind and solar (Mills and ... were as follows: 60 years for nuclear plants, 50 years for coal, natural gas steam plants and geothermal, and 30 years for CT and CCGT plants The technical life of coal and natural gas steam plants...
- 114
- 834
- 0
Maximum reproductive rate of fish at low population sizes potx
Ngày tải lên :
14/03/2014, 16:20
... prediction of random effects is awkward and unnecessary (Robinson 1991); we will “estimate” both fixed and random effects, with the understanding that for random effects, we are in fact obtaining ... log-transformed maximum annual reproductive rate, µ, for the species and the empirical BLUP of log ~ for each α population (Table 1) For completeness, we have given the mixed model estimates for the ... (βi ), the estimated residual variance for each population, and ~ parameters For each simulation, we randomly generated values for the estimated mean (1.37) and variance (0.37) of the log α $ log...
- 16
- 628
- 0
TiO2nanotubes and CNT–TiO2hybrid materials for the photocatalytic oxidation ofpropene at low concentration
Ngày tải lên :
20/03/2014, 13:11
... larger that for both the anatase and anatase–rutile nanotubes This is attributed to the presence of benzyl alcohol and CNTs, both of which prevent grain growth during phase transformation and so stabilize ... significantly at a slower rate for the TiO2 nanotubes compared with P25 Thus, the reaction rates for the photocatalytic oxidation are lower for the nanotubes than for P25 The results for the conversion of ... rate for the all photocatalysts Fig Propene oxidation using 60 ml/min flow rate for the three hybrids (a) The difference in performance between the anatase and rutile nanotubes was observed for...
- 7
- 456
- 0
Báo cáo Y học: Characterization of a partially folded intermediate of stem bromelain at low pH ppt
Ngày tải lên :
24/03/2014, 00:21
... secondary structure and relatively more exposed hydrophobic surface as seen by ¯uorescence, CD and ANS binding MATERIALS AND METHODS Materials Bromelain (EC 3.4.22.32) lot no B4882 and 1-anilino 8-naphthalene ... the excitation wavelength was set at 280 nm and the emission spectra recorded in the range of 300± 400 nm with 5- and 10-nm slit widths for excitation and emission, respectively Binding of ANS ... incubated for 30 prior to taking the ¯uorescence measurements For the intrinsic tryptophan ¯uorescence spectra, the protein samples were excited at 295 nm and emission spectra recorded between 250 and...
- 6
- 495
- 0
Báo cáo khoa học: ATPase activity of RecD is essential for growth of the Antarctic Pseudomonas syringae Lz4W at low temperature potx
Ngày tải lên :
30/03/2014, 04:20
... helicases by structural and functional analyses, including ATP binding and hydrolysis (motifs I and II), ssDNA binding (motifs Ia, III, IV, and V), and coupling of ATPase and helicase (DNAunwinding) ... and C-terminal fragments was amplified separately for each protein using M13R and reverse-strand mutagenic primers (K229QR, T259AR, D323NR, E324QR, Q354ER, H386DR, R419AR, E633QR and R660AR) and ... measured by EMSA, using single-stranded (25-mer) and doublestranded DNA (blunt-end, 5¢ overhang, 3¢ overhang and forked-end) substrates Binding assays were carried out at and 25 °C in 20 lL reaction...
- 17
- 326
- 0
Báo cáo khoa học: The histidine-phosphocarrier protein of Streptomyces coelicolor folds by a partially folded species at low pH ppt
Ngày tải lên :
31/03/2014, 01:20
... typically equal to nm for the excitation light, and nm for the emission light The fluorescence experiments were recorded between 300 and 400 nm The signal was acquired for s and the increment of ... band of HPr changed dramatically at pH 2.5 and 7.5, as shown by: (a) a substantial loss in the integrated intensity of bands arising from a helix and (b) the appearance of a strong and weak bands ... reviewers for helpful suggestions and ´ corrections We thank Catalina Robledano and Sergio Galan for their involvement in the early stages of this work We thank F N Barrera ´ for helpful discussions and...
- 14
- 353
- 0
Báo cáo hóa học: " Catalytic ozone oxidation of benzene at low temperature over MnOx/Al-SBA-16 catalyst" pdf
Ngày tải lên :
20/06/2014, 23:20
... time for both AlSBA-16-MA15% and Al-SBA-16-MN15%; however, the extent of reduction was larger for Al-SBA-16-MN15% Figure shows the benzene conversions and yields of COx (CO2 + CO) obtained for ... eV), MnO2 (642.2 ± 0.4 eV), and Mn nitrate (644.2 ± 0.4 eV), respectively [12] On the other hand, the peak for Al-SBA-16-MA15% was divided into two peaks located at 641.2 and 642.3 eV, implying the ... System Co., Ltd., Chungcheongbukdo, South Korea) used for the CO and CO2 products, and an ozone analyzer (LAB-S, Ozonetech, Daejeon, South Korea) for the ozone conversion In this study, the gas-phase...
- 5
- 339
- 0
Báo cáo hóa học: " A Versatile Route for the Synthesis of Nickel Oxide Nanostructures Without Organics at Low Temperature" doc
Ngày tải lên :
22/06/2014, 01:20
... recombination between electrons in conduction band and holes in valence band There is a sharp band in the PL spectra of NiO nanoparticles and nanoflowers at 380 and 490 nm, respectively The visible emission ... Nanoparticles were not observed for a sample reacted for 12 h at room temperature (Fig 1a), while almost uniform spherical nanoparticles were produced for sample heated at 100 °C for 12 h (Fig 1b) The ... nanoparticles and nanoflowers obtained by the reaction of nickel metal with water at 100 °C for 12–36 h (a) Images of samples at room temperature for 12 h, (b) at 100 °C for 12 h, (c) at 100 °C for 24...
- 5
- 526
- 0
Báo cáo hóa học: " Research Article How to Solve the Problem of Bad Performance of Cooperative Protocols at Low SNR Charlotte Hucher, Ghaya Rekaya-Ben Othman, and Jean-Claude Belfiore" potx
Ngày tải lên :
22/06/2014, 19:20
... confirmed with a dB asymptotic gain, and better or same performance as SISO for low SNR CONCLUSION We proposed adaptive amplify -and- forward (AF) and decode -and- forward (DF) protocols based on a ... (SISO, AF, and NLOS) and to select the best of them Generalization to the N-relay case S and destination D is g0 , the one between source S and relay Ri is hi , and the one between relay Ri and destination ... asymptotic performance with a dB gain, and solves the problem of bad performance at low SNR 8.2 Simulation results We plot the performance simulations of the SISO, Alamouti DF, and adaptive Alamouti...
- 7
- 376
- 0
báo cáo khoa học: " Light has a specific role in modulating Arabidopsis gene expression at low temperature" potx
Ngày tải lên :
12/08/2014, 05:20
... mJ/cm-2) and prehybridized with 1% BSA (fraction V) in × SSC, 0.1% SDS for 30 at 50°C and washed with × SSC and 0.2 × SSC for After centrifugation (500 × g for 10 sec) the slides were used for the ... washed at room temperature with 0.5 × SSC/ 0.1% SDS for 15 min, twice with 0.5 × SSC/0.01% SDS for and twice with 0.06 × SSC for and spinned dry for 10 sec with microarray centrifuge The slides ... acknowledged for spotting of the microarray chips and verification of the cDNA clones by sequencing We thank Virpi Paakkarinen for growing the Arabidopsis plants and Eveliina Aro for excellent...
- 20
- 290
- 0
báo cáo khoa học: " Spatial distribution of transcript changes in the maize primary root elongation zone at low water potential" docx
Ngày tải lên :
12/08/2014, 05:20
... (SH1 and SUS1) [22], and this is the first indication of a role for this gene outside of the kernel and in a stress response An advantage in ATP consumption, phosphorous use efficiency, and in ... product of SUSY3 and is a substrate for ADP-glucose pyrophosphorylase (ADGase), the first committed step in starch synthesis Transcripts for the large subunit of ADGase (MZ00014257) and for a putative ... and phytase mRNA and protein have been localized in the pericycle, endodermis, and rhizodermis of maize root tips [59] Transcripts for enzymes that could metabolize inositol phosphates, one for...
- 15
- 222
- 0
Báo cáo khoa học: "Hepatic Cobalt and Copper Levels in Lambs in Norway" docx
Ngày tải lên :
12/08/2014, 15:20
... At Forus in Rogaland, Rudshøgda in Hedmark (serving several counties in south-east Norway), Førde in Sogn og Fjordane, Meråker in Nord-Trøndelag, Sortland in Nordland (district of Vesterålen) and ... inner Troms The abattoirs at Forus, Førde and Sortland receive animals mainly from coastal districts, while those at Rudshøgda, Meråker and Målselv serve typical inland areas (Fig 1) The meat inspection ... concentrations were larger and more distinct Samples from the inland districts of Nord-Trøndelag and inner Troms showed high copper concentrations, those from Vesterålen (Sortland) and south-east Norway...
- 9
- 195
- 0
Báo cáo y học: " Wild-type and central DNA flap defective HIV-1 lentiviral vector genomes: intracellular visualization at ultrastructural resolution levels" doc
Ngày tải lên :
13/08/2014, 09:20
... steps phase and have reached their final state [4], transduced and non-transduced cells were fixed in 4% formaldehyde (Merck) in 0.1 M Sörensen's phosphate buffer, pH 7.3, at 4°C for hr These ... file for a detailed protocol for HIV-1 DNA genome detection by in situ DNA hybridization and electron microscopy) Prior to hybridization the grids underwent a series of successive enzymatic and ... of the study, performed the statistical analysis, and drafted the manuscript SSB carried out all hybridizations and electron microscopy observations in a single blind fashion, and contributed...
- 7
- 204
- 0
Báo cáo sinh học: "Genotype by environment interaction for adult body weights of shrimp Penaeus vannamei when grown at low and high densities" ppt
Ngày tải lên :
14/08/2014, 13:21
... included terms for the fixed effects; sex of shrimp, density class, a sex by density interaction and covariates for age and age-squared, and an animal genetic effect Algebraically, the model for the ... among all shrimp, and is the symbol for a direct product In addition, define el and Genotype by density interaction in shrimp 547 Table I Means for BW (and SD) of P vannamei male and female adult ... genetic parameter analyses 2.6.1 Model evaluation Means and standard deviation (SD) of BWs unadjusted for age for each grow-out density and sex were estimated using STATISTICA v.5 software A linear...
- 11
- 288
- 0