preparation of diethyl ether from denatured alcohol with concentrated sulfuric acid or battery acid
preparation of hexagonal wo3 from hexagonal ammonium tungsten bronze for sensing nh3
Ngày tải lên :
20/03/2014, 13:06
... [17] The morphology of h-WO3 was investigated by SEM The precursor of h-WO3, i.e HATB was built up by aggregated 50– 100 nm particles (Fig 3a) The annealing of HATB did not affect the morphology ... Sensitivity of h-WO3 to various levels of NH3 at 300 8C of the test, respectively This means the sensor performance is reversible and recoverable, which is important for its application In addition, ... significant amount of reduced W atoms (see XPS results below) As a consequence the absorption bands were very broad in the Raman spectrum of HATB Fig XRD pattern of h-WO3 Fig Raman spectra of (a) HATB;...
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Báo cáo Y học: Structural study on lipid A and the O-specific polysaccharide of the lipopolysaccharide from a clinical isolate of Bacteroides vulgatus from a patient with Crohn’s disease ppt
Ngày tải lên :
31/03/2014, 23:20
... purchased from Sigma (St Louis, MO, USA) Chemical degradation and separation LPS was hydrolyzed with 0.6% acetic acid at 105 °C for 2.5 h, and the reaction mixture was partitioned with chloroform/methanol/water ... values using chloroform (d ¼ 7.2 p.p.m.) for 1H spectra The spectra of the OPS-rich fraction were recorded at 303 K at a Fig SDS/PAGE profile of LPS Ó FEBS 2002 Lipopolysaccharide of B vulgatus ... 2002 (11A-1) from the Ministry of Health and Welfare of Japan, and ÔResearch for the FutureÕ program no 97L00502 from the Japan Society for the Promotion of Science REFERENCES Sartor, R.B (1997)...
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Báo cáo khoa học: "Disintegration of Dung Pats from Cattle Treated with the Ivermectin Anthelmintic Bolus, or the Biocontrol Agent Duddingtonia flagrans" ppsx
Ngày tải lên :
12/08/2014, 15:20
... the decomposition rate of uniform, artificial dung pats derived from groups of cattle that were either treated with the ivermectin bolus, fed chlamydospores of D flagrans, or were maintained untreated ... was performed with Intercooled Stata 7.0 for Windows NT (Stata Corporation, College Station, Texas, USA) To obtain normal distribution and equal variances, weight of the dung pat was transformed ... King KL: Soil nematodes as indicators of the effect of management of grasslands in the New England Tablelands (NSW): effect of measures for control of parasites of sheep Pedobiologia 1997, 41,...
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An experimental study of video uploading from mobile devices with HTTP streaming
Ngày tải lên :
28/09/2015, 13:28
... similar with that imple- 31 mented for Android platform only with a different library, we simply leave out the description of the algorithm here 3.2.2 Delivery Format Selection The file format of an ... delivery format of a segment can be either an ISO-based file format or an MPEG-2 Transport Stream [13] Because DASH utilizes the HTTP protocol it is more widely compatible with network firewalls ... compression format supported in Apple is the H.264 codec for video and the AAC/MP3 codec for audio The duration of 10 seconds for each segment file is a tradeoff between the management of more segment...
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Báo cáo y học: " Surgical Removal of lipoma from an area with tattooed skin"
Ngày tải lên :
25/10/2012, 11:35
... Written informed consent was obtained from the patient for publication of this case report and accompanying images A copy of the written consent is available for review by the Editor-in-Chief of this ... similar case of surgical removal of lipoma from an area with tattooed skin using this aesthetic procedure was found in literature The intent of the case study is to highlight the use of pre-existing ... Consequently, in order to meet the need of our patient of removing the lipomatous formation while keeping the tattoo intact, during the surgical treatment of the lipoma, we followed the exact lines of the...
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Báo cáo y học: "ISOLATION OF CHLAMYDIA PNEUMONIAE FROM SERUM SAMPLES OF THE PATIENTS WITH ACUTE CORONARY SYNDROME"
Ngày tải lên :
26/10/2012, 08:57
... lack of standardized criteria for laboratory diagnostics of chronic C pneumoniae infection as well as contradictory information about distribution of the pathogen throughout of the tissues of human ... sequence (16S rRNA or omp1), best PCR performance has been achieved with DNA extracted with phenol-chloroform protocol, whereas TaqMan PCR sensitivity became unsatisfactory at low values of bacterial ... TaqMan PCR protocol for quantification of C pneumoniae DNA extracted from serum specimens with phenol-chloroform method Standard curves were made using incremental dilutions of reference plasmid...
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Báo cáo y học: " Differentiation of convulsive syncope from epilepsy with an implantable loop recorder Khalil Kanjwal, Beverly Karabin, Yousuf Kanjwal, Blair P Grubb"
Ngày tải lên :
26/10/2012, 09:53
... monitoring techniques Zaidi et al (14) found that close to 45% of patients with atypical seizures had a cardiac related cause of these episodes, and it was only because of prolonged monitoring with ... 41-year-old woman was referred for evaluation of recurrent convulsive episodes At the age of 29 years, she began to experience episodes of sudden loss of consciousness associated with convulsive activity ... http://www.medsci.org Int J Med Sci 2009, Discussion Syncope, the transient loss of consciousness with spontaneous recovery occurs as consequence of a period of cerebral hypoxia A number of conditions...
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Tài liệu Báo cáo khoa học: Suppressed catalytic efficiency of plasmin in the presence of long-chain fatty acids Identification of kinetic parameters from continuous enzymatic assay with Monte Carlo simulation ppt
Ngày tải lên :
18/02/2014, 17:20
... of a first-order rate constant defining the capacity of the enzyme–substrate complex to form product [12] The integrated form of Eqn (3) is: Estimation of the kinetic parameters of plasmin according ... Kinetic parameters of plasmin in the presence of fatty acids The values of kp and Km were determined from the amidolytic assay of plasmin activity, according to Model I, in the presence of oleate (OA) ... indicates the set of parameters in the absence of fatty acids Shaded ellipses combine parameters belonging to the same type of fatty acid (data for oleate and the absence of fatty acids are found...
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Tài liệu Báo cáo Y học: Characterization of an omega-class glutathione S-transferase from Schistosoma mansoni with glutaredoxin-like dehydroascorbate reductase and thiol transferase activities pptx
Ngày tải lên :
21/02/2014, 01:21
... in abnormally divergent parasite sequences as shown for GSTs and nuclear receptors of the parasite, or by abnormally host-parasite converged sequences as was reported for the tropomyosins of S ... and Dr Eleonora Garcı´ a Vescovi for her critical reading of the manuscript This research was supported by Fundacion Antorchas, Third World Academy of Sciences and the Research Program of the UNR ... of the S mansoni EST database with the complete sequence of Tc52 revealed a clone (EST AI975843) with around 25% sequence identity with the GST-like domain of the T cruzi protein A fragment of...
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Báo cáo khoa học: Crystal structures of the apo form of b-fructofuranosidase from Bifidobacterium longum and its complex with fructose pot
Ngày tải lên :
06/03/2014, 00:21
... amino acids) of b-fructofuranosidase from B longum KN29.1 determined on the basis of 1557 nucleotides (the complete ORF of gene b-fructofuranosidase) was compared with other amino acid sequences ... and purification of recombinant b-fructofuranosidase The high-resolution structure of b-fructofuranosidase from B longum is the first one for an enzyme of the GH32 family from nonsporulating probiotic ... The alignment of b-fructofuranosidase from B longum KN29.1 with the known crystal structures of GH32 showed only 22–28% amino acid sequence identity (Fig 1) On the basis of amino acid sequence...
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Báo cáo khoa học: Molecular design of a nylon-6 byproduct-degrading enzyme from a carboxylesterase with a b-lactamase fold ppt
Ngày tải lên :
07/03/2014, 00:20
... system Integration of the reflections was performed using the hkl2000 software package [22] Rigid-body refinement was performed using the coordinates of Hyb-24DN to fit the unit cell of the Hyb-24DNY ... positional and B-factor refinement with cns [23] The initial model was similarly obtained using the coordinates of Hyb-24DN-A112–Ald for protein crystals of Hyb-24D-A112– Ald and of Hyb-24DNY-A112–Ald ... estimation of the specific activity of each enzyme, we quantified the amount of Hyb-24-related protein and Ald-hydrolytic activity in cell extracts, and normalized the data on the basis of the amount of...
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Báo cáo khoa học: Molecular imprinting of cyclodextrin glycosyltransferases from Paenibacillus sp. A11 and Bacillus macerans with c-cyclodextrin pptx
Ngày tải lên :
07/03/2014, 10:20
... after h of Yield of CD8 (% of starch) A 40 30 20 10 0 5 10 15 20 25 Yield of CD8 (% of starch) B 40 30 20 reaction with the CLIP CGTase from A11 The differences in the time course of CD8 formation ... the yield of CD8 increased four-fold with the CLIP CGTase from A11, and three-fold with the CLIP CGTase from BM, after 24 h of reaction The amount of CD8 produced by the CLIP CGTase from BM slowly ... comparison The effect of pH on the activity of the different CGTase preparations from A11 and BM was Table Degree of derivatization of the CGTases from A11 and BM obtained with different protein...
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Báo cáo khoa học: The effect of replacing the axial methionine ligand with a lysine residue in cytochrome c-550 from Paracoccus versutus assessed by X-ray crystallography and unfolding ppt
Ngày tải lên :
07/03/2014, 17:20
... thiol groups of C15 and C18 form thioether linkages with the two vinyl groups of the heme The N-terminal a-helix (helix 1) is distorted so the thioether bond from C15 to the heme can form (Fig 1) ... have a profound effect on the kinetics of the rearrangement of the ‘open’ and ‘closed’ forms of the ligand loop [19] Therefore, conformer A may be considered as the open form, albeit with the ... main-chain torsion angles and coordinates of the two conformers it is apparent that conformer B has almost identical geometry and coordi2445 X-ray and unfolding studies of cyt c-550 J A R Worrall...
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Báo cáo khóa học: Characterization of presenilin complexes from mouse and human brain using Blue Native gel electrophoresis reveals high expression in embryonic brain and minimal change in complex mobility with pathogenic presenilin mutations pptx
Ngày tải lên :
16/03/2014, 16:20
... Analysis of PS1 complex from sporadic AD and tissue with early onset familial AD mutations Membrane fractions were prepared from frontal cortex of cases with sporadic AD and compared with age-matched ... lg) from membranes of embryonic day 14 (E14) mouse brain (E14MB), or from adult mouse brain with PS1 [M146L] (AdMB), were treated with DDM or digitonin before BN/PAGE and Western blotting for ... major differences in PS1 complex mobility with AD (Fig 5A) Human brain cortex had lower detectable levels of PS1 complex compared with preparations from SY5Y No major differences in expression of...
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preparation and characterization of high surface area nanosheet titania with mesoporous structure
Ngày tải lên :
20/03/2014, 13:06
... University for the use of XRD equipment This work was supported by grant-inaids from the Ministry of Education, Science Sports, and Culture of Japan under the 21 COE program, the Nanotechnology Support ... authors would like to express their gratitude to Prof S Isoda and Prof H Kurata, Institute for Chemical Research, Kyoto University for the use of TEM apparatus and to Prof T Yoko, Institute for ... IUPAC type IV pattern with inflection of nitrogen adsorbed volume at P/P0 about 0.45 (type H2 hysteresis loop), indicating the existence of mesopores The pore size distribution of the sample, as...
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Báo cáo khoa học: Identification of critical residues of subunit H in its interaction with subunit E of the A-ATP synthase from Methanocaldococcus jannaschii potx
Ngày tải lên :
30/03/2014, 04:20
... fitting of the X-ray coordinates of the atomic models of subunit A from P horikoshii [17] and subunit B of Methanosarcina mazei Go1 [18] into the ¨ electron density map of the A-ATP synthase from ... size of the particles because of the interaction of E41–60 with H1–47 according to the Stoker–Einstein relation The calculations were performed using confocor software version 4.2, Microsoft excel ... many) with a path length of 0.1 mm, at 20 °C and with a step resolution of nm The readings were for an average of s at each wavelength, and the recorded ellipticity values were the mean of three...
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Báo cáo khoa học: Functional interaction of Escherichia coli heat-labile enterotoxin with blood group A-active glycoconjugates from differentiated HT29 cells docx
Ngày tải lên :
30/03/2014, 10:20
... at confluence for 18 days were incubated with different concentrations of CT-B or LT-B for 30 at °C and then further incubated with 125I-labeled LT-I (5.0 nM) for 60 at °C Binding of 125Ilabelled ... binding of 125I-labelled toxin in the presence of an excess of unlabeled LT-B To assay nonspecific binding of 125I-labelled LT-I or competitive inhibition by unlabelled LT-B or CT-B, the B subunits of ... Each point is the mean of triplicate determinations, with a standard deviation 610% In order to determine the number of LT-I receptors, additional to GM1, on the cell membrane of polarized and nonpolarized...
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báo cáo hóa học: " Health-related quality of life in young adults with symptoms of constipation continuing from childhood into adulthood" potx
Ngày tải lên :
18/06/2014, 19:20
... Quality of Life of young adults with a history of functional childhood constipation in comparison with the HRQOL of peers from the general Dutch population Secondly, it aimed to gain more insight ... 416 children with constipation, 299 patients reached the age of 18 years before January 2007 Of these adults, 68 patients (22.7%) dropped out from the follow-up cohort before 2004 for several reasons: ... quality of life (HRQoL) of adult patients experiencing constipation since childhood Therefore, the aim of this study was to compare current HRQoL in young adults with a history of constipation with...
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Báo cáo hóa học: " Complete genome sequence of a highly divergent astrovirus isolated from a child with acute diarrhea" ppt
Ngày tải lên :
20/06/2014, 01:20
... Tosti G, Fiorentini S, Caruso A: Detection of sporadic cases of Norovirus infection in hospitalized children in Italy New Microbiol 2007, 30:49-52 World Health Report World Health Organization; ... human astroviruses The start codon of ORF2 is shown underlined and the stop codon of ORF1b is shown italicized in bold for each virus Page of (page number not for citation purposes) Virology Journal ... divergent from any of the known human astroviruses Based on the predicted 756aa protein of ORF2, AstV-MLB1 has only 11–24% amino acid identity to other astrovirus capsid precursor proteins (Table 2) Origin...
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báo cáo hóa học:" Low RBM3 protein expression correlates with tumour progression and poor prognosis in malignant melanoma: An analysis of 215 cases from the Malmö Diet and Cancer Study" potx
Ngày tải lên :
20/06/2014, 04:20
... depth of invasion was obtained from the clinical- and /or pathology records Information on recurrence (local, regional or distant) was obtained in 2010 from patient records and pathology reports ... missing values were coded as a separate category for categorical variables and as the mean of all observations for continuous variables Missing values for categorical variables co-varied and the multivariate ... population Notably, since older melanoma patients often present with more advanced disease [27], the relatively low proportion of cases with advanced disease reported here is somewhat unexpected This could...
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