implementation of industrial ecology for industrial hazardous waste management
Handbook of industrial and hazardous wastes treatment - Part 1 pot
... Contributors Implementation of Industrial Ecology for Industrial Hazardous Waste Management Lawrence K Wang and Donald B Aulenbach iii ix Bioassay of Industrial and Hazardous Waste Pollutants Sveltana ... National University of Singapore, Singapore Copyright #2004 by Marcel Dekker, Inc All Rights Reserved 1 Implementation of Industrial Ecology for Industrial Hazardous Waste Management Lawrence ... Dekker, Inc All Rights Reserved Implementation of Industrial Ecology 11 Of course, by using hazardous waste fuels, the nation’s hazardous waste (including infections waste) problem is at least partially...
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Decolorization of Dye with Iron Oxide Catalysed Decomposition of Hydrogen Peroxide
... dye+OH • [OH •]ss − (1) A plot of observed first order rate constant (min-1) for dye removal as a function of FeOOH concentration is shown in Figure All R2 for the fitness of observed first order reaction ... hindered at pH of favorable for homogeneous Fenton reaction This is a clear evidence for indicating that the reaction mechanism of iron oxide catalysed H2O2 decomposition differs from that of homogeneous ... different effect of tert-butanol on hydrogen peroxide decomposition and dye removal The presence of tert-butanol caused only slight change of hydrogen peroxide decomposition, whereas 10 mM of tert-butanol...
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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
... peroxidase in the early stages of melanogenesis, despite reports of the involvement of peroxidase–H2O2 systems in later stages during the oxidation of indolequinone precursors of eumelanin and benzothiazinylalanine ... scenario for the production of these molecules involves the partial reduction of O2 caused by 2412 Fig Representative chromatographs showing the effects of SOD on tyrosinase-mediated oxidation of DOPA ... defined, with some reports indicating it functions to enhance pigment formation by regulating Fig Comparison of the modes of action of tyrosinase and peroxidase in converting tyrosine to dopaquinone...
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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
... programmed cell death expressed with a PCD score of 0–6, where a score of indicates no change, and a score of signifies completion of PCD with the formation of apoptotic bodies [4] Nuclear morphology ... 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 ... production of hydrogen peroxide by the enzymatic reaction of GOD results in the inhibition of PCD Selective suppression of 20E-inducible genes by hydrogen peroxide V7 ASGs were incubated for various...
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Effect of hydrogen peroxide on the destruction of organic contaminants synergism and inhibition in a con
... those of most of previous photocatalytic studies For example, the existence of a maximum enhancement factor at optimum H2 O2 concentrations was reported for the photocatalytic degradation of microcystin-LR ... of hydrogen peroxide of 0.2 mM while the evolution of • OH followed a Langmuir-type relationship At higher concentrations of hydrogen peroxide (up to 0.5 mM), the enhancement factor for the formation ... decomposition of hydrogen peroxide was less than the stoichiometric (i.e., formation of 1H2 O and 1/2O2 ), suggesting internal hydroxylation of the TiO2 surface layers or the formation of stable...
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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
... in some forms of stress-induced apoptosis [30,31] Phosphorylation of JNK at Thr183 and Typ185 is required for JNK activation [32] Activation of p38 MAPK occurs through phosphorylation of Thr180 ... cleavage of distinct and vital proteins [21–23] In particular, caspase-3 is one of the key executioners of apoptosis, as it is either partially or totally responsible for the proteolytic cleavage of ... 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...
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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
... Inactivation of stromal ascorbate peroxidase Fig Alignment of amino acid sequences of C-terminal half-regions of ascorbate peroxidase (APX)-B and stromal APX of spinach Recombination sites for creating ... APX samples per absorbance of Soret peak (roughly corresponding to heme amount) were 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 ... function of ascorbate peroxidase isoenzymes J Exp Bot 53, 1305–1319 Bradford MM (1976) A rapid and sensitive method for the quantitation of microgram quantities of protein utilizing the principle of...
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Synthesis of silicon nanowires after hydrogen radical treatment
... intensity of the (222) peak compared with the other peaks On the other hand, hydrogen radical treatment was performed on the substrate for at 400 °C to fabricate the metal nanocrystal catalysts As for ... 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 indium oxide film as a metal ... 62 (2008) 3903–3905 the use of a transmission electron microscope (TEM) and an energy dispersive X-ray spectrometer (EDX) Results and discussion For the fabrication of the metal nanocrystal catalysts,...
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Báo cáo khóa học: Mechanistic insight into the peroxidase catalyzed nitration of tyrosine derivatives by nitrite and hydrogen peroxide doc
... due to the formation of the nitrophenolic derivatives, in the initial phase of the reactions The conversion of the data from DAặs)1 to Mặs)1 was performed using the e422 values for 14; for 3-nitro-L-tyrosine, ... coefcient of the dimeric product of the reaction This e322 value was obtained from a plot of absorbance versus number of moles of hydrogen peroxide consumed in the HRP-catalyzed oxidation of 4, where ... of the phenols to the corresponding phenoxide radicals; the values of 840 mV (versus Ag/AgCl/KCl saturated) for and 790 mV for were found Voltammeric oxidation of phenols causes passivation of...
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Báo cáo khoa học: Microperoxidase 8 catalysed nitrogen oxides formation from oxidation of N-hydroxyguanidines by hydrogen peroxide ppt
... catalyses the oxidation of to the corresponding cyanamide with formation of only minor amounts of urea Reaction of and NOHA in the presence of MP8 and H2O2 leads to NO formation as evidenced by ... in the formation of cyanamide Furthermore, implication of the iron atom of MP8 in the catalysis was indicated by the almost complete inhibition of the reaction performed in the presence of lM ... indicated for the oxidation of N-hydroxyguanidines by one-electron oxidants and for the oxidation of benzamidoximes by H2O2 in the presence of HRP [15,37,38] In addition, the formation of intermediate...
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Báo cáo khoa học: Hydrogen peroxide efflux from muscle mitochondria underestimates matrix superoxide production – a correction using glutathione depletion pptx
... 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, ... and regulation of mitochondrial ROS production [10–18] The basic premise of the assay is straightforward Superoxide is the initial product formed as a result of the reduction of O2 by single ... peroxidise and either 100 or 25 UÆmL)1 of Cu ⁄ Zn-SOD for site IF and IIIQo respectively Note, although 25 UÆmL)1 of SOD is sufficient for superoxide detection, 100 UÆmL)1 of SOD was found to substantially...
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Re-Evaluation of Some Organic Chemicals, Hydrazine and Hydrogen Peroxide potx
... in humans for the carcinogenicity of dimethylformamide There is evidence suggesting lack of carcinogenicity of dimethylformamide in experimental animals Overall evaluation Dimethylformamide is ... carcinogens, 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 ... effects of 1,4-dioxane exposure of rats have been reported Most of the broad of tests for genotoxic activity have produced negative results, but positive results were obtained in a cell transformation...
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RE-EVALUATION OF SOME ORGANIC CHEMICALS, HYDRAZINE AND HYDROGEN PEROXIDE ppt
... 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 ... may be grouped together for the purpose of a single evaluation of degree of evidence (i) Carcinogenicity in humans The applicability of an evaluation of the carcinogenicity of a mixture, process, ... The objective of the programme is to prepare, with the help of international working groups of experts, and to publish in the form of monographs, critical reviews and evaluations of evidence on...
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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
... opposite effect of the full-length form For example, it is reported that the MDS1 ⁄ EVI1 isoform enhances the growth inhibitory effects of TGFb [26], whereas the full-length form blocks this ... activity of the indicated cell lines and populations in the absence (grey columns) or presence of lM paclitaxel for 16 h (black columns) The columns represent the mean of an experiment performed ... activity of the indicated cell lines and populations in the absence (grey columns) or presence of 750 lM H2O2 for 16 h (black columns) The columns represent the mean of an experiment performed...
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Báo cáo hóa học: " Involvement of intracellular free Ca2+ in enhanced release of herpes simplex virus by hydrogen peroxide" ppt
... examined the effect of H2O2 on the release of HSV-1 When FI cells were infected with HSV-1 at a multiplicity of infection (MOI) of plaque forming units (PFU)/cell, cultured for 18 h and treated ... indicating the induction of DNA fragmentation When FI cells were infected with HSV-1 at an MOI of PFU/cell and cultured for 18 h, the profile of DNA content was different from that of mock-infected cells ... (Calbiochem) for 10 prior to the H2O2 treatment For buffering [Ca2+]i, cells were pretreated with 50 μM of the acetoxymethyl ester of BAPTA (BAPTA/AM; Calbiochem) or 50 μM of the acetoxymethyl ester of...
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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
... also gives the value of kwirges previously reported by Wirges [5] for comparison Table Values of k for the experiments performed assuming first order kinetics Exp T [°C] 20 15 OF 3.75886 1.86852 ... table also presents the error for the optimization, OF, equation (13) Table Values of k and m for the experiments performed assuming "mth" order kinetics Exp T [°C] 20 15 OF 0.3298 0.1878 0.1796 0.1406 ... in this study Most of the works in the literature focused on the use of hydrogen peroxide for the remediation of wastewater and the concentrations were very low (in the order of 10-3 mol/L) In...
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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
... opennings of fistulas Methods: all patients with anal fistulas in this prospective study were in Gia Dinh hospital and HoChiMinh Univeristy Medical Center (09/200306/2004) All patients were performed ... 3D software (BK3Di Type 6503) to reconstruct images Findings in operations were the gold standards Results: in 132 patients (109 males, 23 females, mean age 49.67), there were a variety of anal ... sonography was able to identify the inner opennings of all cases, particularly cases with two inner opennings Accordings to the classification of Parks et al, we had six submucosal fistulas, three...
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Báo cáo y học: "HIV-1 Nef increases astrocyte sensitivity towards exogenous hydrogen peroxide" potx
... Importance of the nef gene for maintenance of high virus loads and for development of AIDS Cell 1991, 65:651-662 51 Simard MC, Chrobak P, Kay DG, Hanna Z, Jothy S, Jolicoeur P: Expression of simian ... was performed as described in the Methods section The relative fluorescence represents the ratio of the fluorescence intensity of study cells versus mock-treated Data obtained after h of starting ... 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
... 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 sampling (day ... significantly more observations of growth for S aureus and/or S zooepidemicus compared to LHP ® treated and untreated wounds Therefore petrolatum for topical treatment of open wounds in horses may ... as no growth, sparse (n < 20), moderate (20 to 100), or profuse (> 100) on the basis of the number of colonies on the agar plates Growth of b-haemolytic streptococci, Staphylococcus aureus, Pseudomonas...
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Báo cáo y học: "Aspergillus fumigatus allergen expression is coordinately regulated in response to hydrogen peroxide and cyclic AMp" doc
... 50°C for h followed by 40 cycles of 94°C for 30 sec, 55°C for 30 sec and 72°C for 60 sec Fluorescence was read at 55°C three times during each cycle Melting curves were subsequently determined for ... shown for each gene tested to give an indication of level of expression Error bars represent standard error of mean of biological replicates calculated using GraphPad PRISM 4.0 exception of Asp ... release of oxidative agents by macrophages and neutrophils during killing of conidia [35] This should be especially true for genes coding for proteins, which are involved in conversion of toxic...
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