analysis characterization and monitoring of operative droughts
Handbook of industrial and hazardous wastes treatment - Part 1 pot
Ngày tải lên :
11/08/2014, 17:22
... ecologists’ qualifications, and ways and means for analysis and design The benefits of IE are shown as they relate to sustainable agriculture, industry, and environment, zero emission and zero discharge, ... communities, and nations 1.3 GOAL, ROLE, AND OBJECTIVES An industrial ecologist’s tasks are to interpret and adapt an understanding of the natural system and apply it to the design of man-made ... viability of systems for industry, trade, and commerce; (f) coordinating design over the life cycle of products and processes; and (g) enabling creation of short-term innovations with awareness of their...
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Decolorization of Dye with Iron Oxide Catalysed Decomposition of Hydrogen Peroxide
Ngày tải lên :
05/09/2013, 08:40
... the catalytic decomposition of H2O2 and dye removal were suggested in Table and Figure Similar mechanism for surface catalysed H2O2 decomposition in the presence of sand was suggested by Miller ... determination of hydrogen peroxide Ind Eng Chem Anal., 15(5), 327–328 Ganesh R and Boardman G.D and Michelsen D (1994) Fate of Azo Dyes in Sludge Wat Res., 28, 1367-1376 Lin S and Gurol M.D (1998) ... H2O2 Decomposition and Contaminant Degradation in the Presence of Sand, Wat Res., 33(12), 2805-2816 Valentine R.L and Ann Wang H.C (1998) Iron Oxide Surface Catalysed Oxidation of Quinoline by Hydrogen...
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Báo cáo khoa học: Production and utilization of hydrogen peroxide associated with melanogenesis and tyrosinase-mediated oxidations of DOPA and dopamine docx
Ngày tải lên :
07/03/2014, 17:20
... Overview of the principal melanotic pathways and some of the proposed sites of activity of DOPA decarboxylase (DDC), tyrosinase (TYR), tyrosine-3-hydroxylase (TAH), peroxidase (PER), and phenylalanine ... tetrahydrobiopterin; GSH, reduced glutathione compounds, and reducing agents, the activities of melanogenic enzymes and competitive oxidases, and the availability of enzyme cofactors The two-step reaction sequence ... given to understanding the role of peroxidase in the early stages of melanogenesis, despite reports of the involvement of peroxidase–H2O2 systems in later stages during the oxidation of indolequinone...
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Báo cáo khoa học: Glucose oxidase prevents programmed cell death of the silkworm anterior silk gland through hydrogen peroxide production ppt
Ngày tải lên :
15/03/2014, 00:20
... GOD activity in the extracts of various tissues of V3 larvae and (C, inset) GOD expression in the ASG, the middle silk gland (MSG) and the posterior silk gland (PSG) of V0 larvae, as determined ... trehalase is produced by the silk gland cells and is localized to the cavity of ASGs [19,20] The silk gland and the salivary gland are homologous organs [21], and both produce silk protein [22] ... incubating one V5 ASG in 0.3 mL of Grace’s medium for 48 h (V5 CM) When the CM of one gland had less than unit of the activity, the number of glands cultured in 0.3 mL of medium was increased to five...
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Effect of hydrogen peroxide on the destruction of organic contaminants synergism and inhibition in a con
Ngày tải lên :
16/03/2014, 00:07
... function of the characteristics of the feed solution (type and concentration of organics, pH, presence of inorganic ions), the concentration of oxygen in the reaction solution, the magnitude of the ... photocatalytic reactor (RDPR) Details on the development, characterization, evaluation, and mechanism of operation of the RDPR for the destruction of pesticides and other organic pollutants in water at small ... The flow rate and the pressure of the pump were 1.23 ml min−1 and 1400–1600 psi, respectively The mobile phase was a solution of 3.5 mM Na2 CO3 and 1.0 mM NaHCO3 The concentration of H2 O2 in...
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Báo cáo khoa học: Mammalian 105 kDa heat shock family proteins suppress hydrogen peroxide-induced apoptosis through a p38 MAPK-dependent mitochondrial pathway in HeLa cells potx
Ngày tải lên :
16/03/2014, 06:20
... lg of protein) of the cell extracts were separated by SDS–PAGE and immunostained using anti-Hsp105 or anticaspase-9 The intensity of bands was quantified by public-domain NIH IMAGE software, and ... fragmentation and ⁄ or chromatin condensation For assessment of proportion of apoptotic cells, the number of cells on cover slips and the number of detached cells were determined Immunoblot analysis ... of Hsp105a and Hsp105b prevents the activation of caspase-3, resulting in suppression of H2O2-induced apoptosis However, Hsp105a and Hsp105b seem to suppress H2O2-induced apoptosis upstream of...
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Báo cáo khoa học: An inserted loop region of stromal ascorbate peroxidase is involved in its hydrogen peroxide-mediated inactivation pot
Ngày tải lên :
16/03/2014, 14:20
... 60–80% of that of APX-B, and that of the spinach stromal APX sample was 140% of that of APX-B By comparing specific activities per protein and per absorbance of Soret peak, the purity of these ... concentrations of ascorbate (0–0.5 mM) and a fixed concentration of hydrogen peroxide (0.1 mM) dKm value was determined with various concentrations of hydrogen peroxide (0–0.1 mM) and a fixed concentration of ... concentration of generated hydrogen peroxide and the rate of inactivation are relatively lower than when an excess amount of hydrogen peroxide is exogenously added, and we could determine the halftime of...
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Synthesis of silicon nanowires after hydrogen radical treatment
Ngày tải lên :
16/03/2014, 15:13
... diameter, and their lengths extended to about 10 μm Furthermore, to confirm the crystal structure of the SiNWs, TEM analysis was carried out The results of the high-resolution TEM (HR-TEM) analysis ... indicates that the particle is composed of Si and In Here, the detected O and Cu are the effect of the TEM copper grid The indium nanoparticle located on top of the synthesized SiNW suggests that ... FE-SEM micrograph of the assynthesized SiNWs The voluminous quantities of SiNWs were grown for h at 400 °C Fig XRD patterns before and after hydrogen radical treatment (a) Peaks of the asdeposited...
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Báo cáo khóa học: Mechanistic insight into the peroxidase catalyzed nitration of tyrosine derivatives by nitrite and hydrogen peroxide doc
Ngày tải lên :
16/03/2014, 16:20
... times of and were 11.5 and 12.7 min, respectively, and those of the corresponding nitration products, 3-(4-hydroxy-3-nitrophenyl)-propionic acid and 4-hydroxy-3-nitrobenzonitrile, were 13.9 and ... peaks at 11.1 and 11.3 min, and minor peaks for unreacted and six other products with retention times of 9.9, 10.4, 11.8, 12.0, 12.2 and 12.4 Fig Biphasic behavior of the rate of HRP-mediated ... 271) Table Analytical data of 4-hydroxy-3-nitrobenzonitrile Elemental analysis, 1H-NMR, MS (ESI) and IR characterization of 4-hydroxy3-nitrobenzonitrile Elemental analysis (%) Calculated Found...
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Báo cáo khoa học: Microperoxidase 8 catalysed nitrogen oxides formation from oxidation of N-hydroxyguanidines by hydrogen peroxide ppt
Ngày tải lên :
17/03/2014, 09:20
... addition of catalase to stop the reaction Amino acids were derivatized in the presence of NDA and NaCN [7], and analysis of the reaction mixtures by RP-HPLC showed the disappearance of NOHA with ... MP8 and mM H2O2 were thus performed and stopped after by the addition of catalase Analysis of the reaction mixtures by RP-HPLC using UV-detection revealed a signicant decrease of the amount of ... degradation of MP8 had occured under those oxidative conditions (data not shown) The effect of changing the pH of the reaction medium on the efciency and selectivity of the reaction of in the presence of...
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Báo cáo khoa học: Hydrogen peroxide efflux from muscle mitochondria underestimates matrix superoxide production – a correction using glutathione depletion pptx
Ngày tải lên :
22/03/2014, 21:21
... the presence of malate plus glutamate, also maximized by the addition of rotenone as a result of the full reduction of FMN and of NAD+ Addition of glutamate allows the production of a-ketoglutarate, ... Sites of ROS production Several sites of mitochondrial superoxide production have been recognized and defined by the selective use of specific substrates and inhibitors The four major sites of importance ... site of complex I in the presence of malate (to reduce NAD+ to NADH), maximized by the addition of rotenone (to block exit of electrons from complex I and fully reduce the active site FMN, and...
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Re-Evaluation of Some Organic Chemicals, Hydrazine and Hydrogen Peroxide potx
Ngày tải lên :
28/03/2014, 19:20
... incidence of hepatocellular adenomas and carcinomas in mice, tumours of the nasal cavity, liver subcutaneous tissues, mammary gland and peritoneal mesotheliomas in rats and tumours of the liver and ... Harderian gland, mammary gland, liver, kidney, skin, mesentery, forestomach and Zymbal gland In one study in rats, chloroprene caused increased incidences of tumours of the oral cavity, thyroid gland, ... catechol enhanced the incidence of papillomas of the tongue, carcinomas of the oesophagus, squamous-cell carcinomas of the forestomach and adenocarcinomas of the glandular stomach 5.4 Other relevant...
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RE-EVALUATION OF SOME ORGANIC CHEMICALS, HYDRAZINE AND HYDROGEN PEROXIDE ppt
Ngày tải lên :
28/03/2014, 19:20
... number of aspects of design and analysis as described in the report of the study Most of these considerations apply equally to case–control, cohort and correlation studies Lack of clarity of any of ... major collection of data and the preparation of first drafts of the sections on chemical and physical properties, on analysis, 12 IARC MONOGRAPHS VOLUME 71 on production and use and on occurrence ... imply acceptance of the adequacy of the study design or of the analysis and interpretation of the results, and limitations are clearly outlined in square brackets at the end of the study description...
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Báo cáo khoa học: Enhanced sensitivity to hydrogen peroxide-induced apoptosis in Evi1 transformed Rat1 fibroblasts due to repression of carbonic anhydrase III docx
Ngày tải lên :
29/03/2014, 08:20
... glutathione peroxidases and peroxiredoxin III and nonenzymatic systems including vitamins C, E and B2, coenzyme Q10, glutathione and carotene [14] If the amount of ROS exceeds the capacity of the antioxidant ... production of subgenomic transcripts for the expression of neo (B) Western blot analysis of whole cell protein extracts derived from the indicated cell lines and populations using a-Evi1 (1806) and ... protects cells from a variety of inducers of apoptosis, the effects of H2O2 have not yet been examined Rat1 cells and 5.61 cells were exposed to various concentrations of H2O2 and cell viability monitored...
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Báo cáo hóa học: " Involvement of intracellular free Ca2+ in enhanced release of herpes simplex virus by hydrogen peroxide" ppt
Ngày tải lên :
20/06/2014, 01:20
... an MOI of PFU/cell and cultured for 18 h, the profile of DNA content was different from that of mock-infected cells A broad peak was observed at the position of G0/G1 and the population of 100 ... ciated of1 2O2 on the amount of cell-free virus and cell-assoEffect virus Effect of H2O2 on the amount of cell-free virus and cell-associated virus FI cells were infected with HSV-1 at an MOI of ... proliferation and activity of protein and DNA synthesis will influence virus release and infectivity It is possible that oxidative stress promotes the steps of transport and/ or maturation of virus...
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Báo cáo nghiên cứu khoa học: " EXPERIMENTAL AND THEORETICAL ANALYSIS OF A CRITICAL CHEMICAL REACTION: DECOMPOSITION OF HYDROGEN PEROXIDE (H2O2)" potx
Ngày tải lên :
22/07/2014, 03:20
... because of the explicit influence of pH and catalyst concentration to the kinetics of the reaction The values of the optimized reaction rate constant, k, and the values of the objective function, OF ... summarized in table (1) The influences of hydrogen peroxide and catalyst concentration and of the initial temperature of the reactor on the reaction rate and the heat flow behavior were evaluated ... enthalpy is a function of the composition, temperature and pressure, but primarily temperature [6] So, it can be written as the product of the temperature of the system, Tr, and the average heat...
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KHẢO SÁT SIÊU ÂM LÒNG HẬU MÔN VỚI HYDROGEN PEROXIDE TRONG BỆNH RÒ HẬU MÔN VÀ RÒ HẬU MÔN - ÂM ĐẠO doc
Ngày tải lên :
01/08/2014, 16:20
... the 360 rotating tranducer and BK equipment (BK Hawk 2102 – EXL) Radiologists used the 3D software (BK3Di Type 6503) to reconstruct images Findings in operations were the gold standards Results: ... variety of anal and ano-vaginal fistulas The endoanal sonography was able to identify the inner opennings of all cases, particularly cases with two inner opennings Accordings to the classification of ... to classify the fistulas and to identify the inner opennings of fistulas Methods: all patients with anal fistulas in this prospective study were in Gia Dinh hospital and HoChiMinh Univeristy...
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Báo cáo y học: "HIV-1 Nef increases astrocyte sensitivity towards exogenous hydrogen peroxide" potx
Ngày tải lên :
11/08/2014, 21:21
... by a depletion of endogenous antioxidant moieties and an increased production of ROS Oxidative stress, in particular, is thought to be a cause of neuronal cell death in the brain of HIV-1 infected ... prepared, separated and blotted, and HIV-1 Nef and GAPDH have been detected as described in the Methods section Scanner (GE Healthcare), and analyzed using ImageQuant 5.2 software (Molecular Dynamics) ... applying an excitation wavelength of 532 nm and an emission filter of 580BP30 nm Data were analyzed using ImageQuant™ TL software (GE Healthcare) The fluorescence intensity of medium containing only...
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Báo cáo khoa học: " Evaluation of LHP® (1% hydrogen peroxide) cream versus petrolatum and untreated controls in open wounds in healthy horses: a randomized, blinded control study" pdf
Ngày tải lên :
12/08/2014, 18:22
... initiator, designer and performer of the project and author of the manuscript; HB: Contributor to design and revising the manuscript, acquisition of funding; VB and EB: Bacterial cultures and analyses; ... http://www.actavetscand.com/content/53/1/45 Page of 10 Figure Kaplan-Meier survival plot of days from start of the study until healing according to treatment in the majority of horses regardless of the day of ... treatment and examination day, and the random effect of horse, to account for the repeated observations on horse However, the model on days until healing only included the effects of treatment and...
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Báo cáo y học: "Aspergillus fumigatus allergen expression is coordinately regulated in response to hydrogen peroxide and cyclic AMp" doc
Ngày tải lên :
13/08/2014, 13:22
... fungus (macrophage only and RPMI-FBS-PS only) were used as controls Preparation of RNA Three aliquots consisting of ml of each culture grown in various media and 200 μl of A fumigatus/macrophage ... suppression of the fungus by the macrophages and higher MOI (> 1:200) resulted in rapid overgrowth of the culture with fungus and death of the macrophages after 48 h To ensure viability, cultures and ... to the comparator, b-tubulin (T) and this is shown for each gene tested to give an indication of level of expression Error bars represent standard error of mean of biological replicates calculated...
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