nitrous oxide oxygen and ethylene oxide

CHARACTERISTICS AND DISTRIBUTIONS OF NITROUS OXIDE-PRODUCING DENITRIFYING FUNGI IN NATURAL ENVIRONMENTS

Ngày tải lên : 05/09/2013, 08:40

... 115-140 Tokuda S and M Hayatsu (2000) Nitrous oxide production from strongly acid tea field soils Soil Science and Plant Nutrtion, 46, (4), 835-844 Weiss R.F and B.A Price (1980) Nitrous oxide solubility ... Bleakley B.H and J M Tiedje (1982) Nitrous oxide production by organisms other than nitrifiers and denitrifiers Applied and Environmental Microbiology, 44, 1342-1348 Burdige J D and C S Martens ... samples Chloramphenicol and cycloheximide were used as specific growth inhibitors of bacteria and fungi, respectively (Anderson and Domsch, 1975; Newell et al., 1983; Fuhrman and McManus, 1984; Bjornsen,...

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Báo cáo y học: "Tumor necrosis factor alpha-dependent aggrecan cleavage and release of glycosaminoglycans in the meniscus is mediated by nitrous oxide-independent aggrecanase activity in vitro" pptx

Ngày tải lên : 09/08/2014, 14:22

... sulfanilamide and 0.1% N-(1-naphtyl) -ethylene diamine-dihydrochloride in 5% H3PO4, Sigma-Aldrich, St Louis, MO, USA) A 100 μl aliquot of each sample and 100 μl Griess reagent were mixed and incubated ... Germany) and destained with 10% (v/v) acetic/50% (v/ v) methanol and with 10% (v/v) acetic acid/10% (v/v) methanol MMPs were identified by molecular weight and substrate specificity as clear bands ... enzymes MMP-3 and ADAMTS-4 (see below) Collagen type I mRNA was decreased in all cases (0.75 ± 0.15), while aggrecan and collagen type II as well as MMP-1 and MMP-13 showed both increases and decreases...

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Tài liệu Báo cáo khoa học: The multicopper oxidase from the archaeon Pyrobaculum aerophilum shows nitrous oxide reductase activity docx

Ngày tải lên : 18/02/2014, 04:20

... nitrite to nitric oxide, nitric oxide to nitrous oxide, and nally nitrous oxide to dinitrogen [20,21] The nitrate and nitric oxide reductases of P aerophilum have been isolated and biochemically ... for nitrous oxide as substrate than for dioxygen, and a higher efciency was measured for nitrous oxide reduction than for dioxygen reduction Therefore, McoP shows a preference for nitrous oxide ... compilation ê 2010 FEBS 3185 A novel nitrous oxide reductase in Archaea A T Fernandes et al analysis with Fe2+ (as reducing substrate) and nitrous oxide and dioxygen (as oxidizing substrates) was...

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nitrous oxide fluxes from a commercial beef cattle feedlot in kansas

Ngày tải lên : 28/05/2014, 14:38

... 2006;35:1678–1685 10 Kanako K, Ronggui HU, Sawamoto T, Hatano R Three years of nitrous oxide and nitric oxide emissions from silandic andosoils cultivated with maize in Hokkaido, Japan Soil Sci Plant Nutr ... moist/muddy, II – dry and loose, III – dry and compacted, and IV – flooded) Air, Soil and Water Research 2014:7 37 Aguilar et al • • Figure N2O emissions behavior between morning and afternoon sampling ... slopes between the first and second and between the first and third N2O concentrations, respectively.23 Statistical Analysis Emission flux data and soil/manure chemical and physical characteristics...

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lean combustion characteristics of hydrogen-nitrous oxide-ammonia mixtures in air

Ngày tải lên : 29/11/2014, 07:11

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tìm hiểu về nhóm phụ gia chất khí gồm Agon, Hydrogen, Nitrous Oxide

Ngày tải lên : 29/03/2015, 14:59

... Khả hòa tan nitrousoxide số chất:Trong nước, rau quả, sucrose solutionrong sodium chloride solution, ethanol solution, propylene glycol d Các nguồn nitrousoxide d.1.Nguồn nitrousoxide tự nhiên ... khí nitrousoxide (N2O) chiếm khoảng 0.00003% Chăn nuôi súc vật để làm thịt nguồn thán khí, nguồn khí methan nitrous oxide lớn nhất Lĩnh vực chăn nuôi tạo 9% lượng thán khí, 65% lượng nitrous oxide, ... bị điện khác Trang 11 TL Phụ Gia Thực Phẩm GVHD: Nguyễn Thị Hoàng Yến B NITROUS OXIDE Giới thiệu a Lịch sử sử dụng nitrousoxide (N2O) Năm 1794, Thomas Beddoes James Watt làm việc với để xuất sách...

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Báo cáo khoa học: Muramyl-dipeptide-induced mitochondrial proton leak in macrophages is associated with upregulation of uncoupling protein 2 and the production of reactive oxygen and reactive nitrogen species docx

Ngày tải lên : 05/03/2014, 23:20

... endothelial injury from nitric oxide and superoxide Proc Natl Acad Sci USA 87, 1620–1624 Miwa S, St-Pierre J, Partridge L & Brand MD (2003) Superoxide and hydrogen peroxide production by Drosophila ... are complexes I and III [34] The ROS generated in mitochondria are removed by local superoxide dismutases and peroxidases and by reaction with low molecular weight reductants and sulfhydryl-containing ... these molecules with the level and function of UCP2 and free radical production in macrophages We ﬁnd that MDP induces reactive oxygen and nitrogen species production and upregulates UCP2 protein...

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Oxygen and the Evolution of Life pptx

Ngày tải lên : 14/03/2014, 10:20

... (reduced) Oxygen binding proteins Oxygen transport proteins Present dioxygen level Phosphodiesterase Reactive oxygen species Superoxide dismutase Tumor necrosis factor xi Chapter Oxygen, Its Nature and ... damage The main reaction of superoxide is to react with itself and hydrogen to produce hydrogen peroxide and triplet oxygen, 21 O2 ÀÃ þ 2Hþ ! H2 O2 þ3 O2 This superoxide dismutation can occur spontaneously ... the oxygen oxygen bond of hydrogen peroxide (H2O2) to produce a hydroxyl radical (HO*) and a hydroxide ion (HOÀ) The overall process, called the Fenton reaction proceeds as follows: ðsuperoxide...

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HYDROGEN, OXYGEN AND NITROGEN AND GROWTH doc

Ngày tải lên : 29/06/2014, 15:20

... Hydrogen and oxygen are never taken into consideration in manuring lands, as they are so readily obtained from the water constituting the sap of the plant, and consequently should ... travels, and assure us that, after wandering about in all sorts of places, it had returned to us the same little atom of nitrogen which we had owned twenty years before, and which for thousands of ... hydrogen and oxygen Thus we see that the plant obtains its food in the following manner:— In the form of carbonic acid from the atmosphere, and from CARBON — that contained in the sap, the oxygen...

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Báo cáo lâm nghiệp: "Polyamines and ethylene during of Prunus avium L. in vitro rooting" pps

Ngày tải lên : 09/08/2014, 04:20

... at intervals in the shoot apical and basal mm portions, stem and leaves Dansylated derivatives of the polyamines were separated by thin-layer chromatography and fluorometrically determined The ... of labeled PUT, the precursor of SPD and SPM, was evaluated by adding 185 kBq to 100 ml of medium (15 shoots) Shoot portions were extracted on d 2, and 15 and polyamines were analyzed as described ... inserted, and a center well containing either 0.1 M mercuric acetate (in methanol) or 0.25 M mercuric perchlorate in order to capture the labeled ethylene formed The radioactivity in the ethylene...

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Báo cáo y học: "Decreased GABAB receptor function in the cerebellum and brain stem of hypoxic neonatal rats: Role of glucose, oxygen and epinephrine resuscitation" pot

Ngày tải lên : 10/08/2014, 05:21

... acetylcholinesterase [67], GABAA and serotonin receptors [68] reported the neuroprotective role of glucose and combination of glucose and oxygen resuscitation and the damaging effects of oxygen supplementation ... Hx+G, Hypoxic rats oxygen treated - Hx+O, Hypoxic rats glucose and oxygen treated - Hx+G+O, Hypoxic rats epinephrine treated - Hx + E, Hypoxic rats glucose, epinephrine and oxygen treated - Hx+G+E+O ... Hx+G, Hypoxic rats oxygen treated - Hx+O, Hypoxic rats glucose and oxygen treated - Hx+G+O, Hypoxic rats epinephrine treated - Hx + E, Hypoxic rats glucose, epinephrine and oxygen treated - Hx+G+E+O...

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Studies of cobalt and iron oxidesoxyhydroxides nanostructures for electrochemical applications

Ngày tải lên : 10/09/2015, 09:27

... glucose, hydrogen peroxide or hydrazine (Chapter & 5) On the other hand, we fabricated a novel nanocomposite by coupling iron oxide (α-Fe2O3) nanotubes (NTs) and reduced graphene oxide (rGO) Several ... Co 2p3/2 (upper spectra) and O 1s (lower spectra) core levels for CoOOH (a and c) and Co3O4 (b and d) nanosheet arrays, respectively 65 3.8 CVs obtained using CoOOH (a) and Co3O4 (b) electrodes ... iron (III) oxyhydroxide /oxide electrode in M KOH (a), M Na2SO4 (b) and M Na2SO3 (c) at different scan rates (10 to 200 mV/s); (d) Comparison of CV curves of iron (III) oxyhydroxide /oxide electrode...

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Báo cáo khoa học: Nitric oxide formation from the reaction of nitrite with carp and rabbit hemoglobin at intermediate oxygen saturations pdf

Ngày tải lên : 16/03/2014, 06:20

... full and intermediate oxygen saturations, and Hb will never become fully deoxygenated It is therefore important to understand how the reaction of nitrite with Hb proceeds at intermediate oxygen ... vasodilation and increases blood ow, consistent with its conversion into NO by hemoglobin and or red cells [4,1214] The reactions of nitrite with oxygenated hemoglobin (oxyHb) and deoxygenated ... concentrations of oxygenated hemoglobin, methemoglobin, nitrosylhemoglobin and deoxygenated hemoglobin during the reaction of nitrite with carp hemoglobin at different oxygen saturations Initial oxygen...

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Báo cáo y học: "NITRIC OXIDE (NO), CITRULLINE – NO CYCLE ENZYMES, GLUTAMINE SYNTHETASE AND OXIDATIVE STRESS IN ANOXIA (HYPOBARIC HYPOXIA) AND REPERFUSION IN RAT BRAIN"

Ngày tải lên : 26/10/2012, 09:07

... amino acid transporter-2, and NOS in activated murine microglial cells (19) and co-induction of inducible NOS and arginine recycling enzymes in cytokine-stimulated PC12 cells and high output production ... incidents involving anesthesia To understand the role of citrulline-NO cycle enzymes, GS and the oxidative status in anoxia and reperfusion, NOS, AS, AL, GS and arginase activities along with the ... (TBARS) and Total antioxidant status (TAS) were estimated in cerebral cortex (CC), cerebellum (CB) and brain stem (BS) of rats subjected to anoxia (hypobaric hypoxia) and reperfusion (reoxygenation)...

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Design and development of major balance of plant components in solid oxide fuel cell system

Ngày tải lên : 05/09/2013, 16:10

... subscripts h, c, i and o denote hot, cold, inlet and outlet, respectively It represents the relationship between the temperature difference between the hot and cold gas streams at inlet and the temperature ... the cold side absorbed heat and UA value by 18% and 24%, respectively, compared to the commercial design Figure Cold side absorbed heat and UA value of commercial and INER-Kaori plate heat exchangers ... water to the point of gasification in a pre-heater and then mixing the resulting steam with hydrogen, nitrogen, carbon monoxide and carbon dioxide provided by a gas supply system As with the cathode...

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Tài liệu SMALL BUSINESS GUIDE FOR ETHYLENE OXIDE docx

Ngày tải lên : 18/02/2014, 00:20

... Occupational Safety and Health Act requires employers to comply with safety and health standards promulgated by OSHA or by a State with an OSHA-approved state plan However, the Ethylene Oxide standard (29 ... Dosimeters and Traditional Air Sampling Methods Using a Pump and Sorbent Tube 59 Related OSHA Standards and Other Helpful Resources 61 A B C D E F G H I Ethylene Oxide - General ... EtO standard, including an explanation of the requirements of the standard and its Appendices A and B Employees must also be informed (1) that a copy of the standard is available to them and (2)...

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Tài liệu Báo cáo khoa học: Structural and mechanistic aspects of ﬂavoproteins: electron transfer through the nitric oxide synthase ﬂavoprotein domain pdf

Ngày tải lên : 18/02/2014, 11:20

... Arg, H4B, CaM, NADPH, FAD and FMN have been identified based on crystallography, mutagenesis and homology studies [17–22] 3960 NOS are heme-thiolate enzymes and catalyze oxygen activation by a mechanism ... and a distinct proximal Fig Simplified model of arginine hydroxylation in NOS enzymes Ferric heme receives an electron from FMNH2 ⁄ FMNH) enabling oxygen binding and formation of a ferrous dioxygen ... Acknowledgements We thank past and present members of the Stuehr lab for their efforts and valuable discussions, and National Institutes of Health grants GM51491, CA53914 and HL76491 for financial support...

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Tài liệu Báo cáo Y học: Enhancement by a-tocopheryl hemisuccinate of nitric oxide production induced by lypopolysaccharide and interferon-c through the upregulation of protein kinase C in rat vascular smooth muscle cells docx

Ngày tải lên : 22/02/2014, 04:20

... concentrations of LPS and IFN NO production is reported to be stimulated by LPS and IFN through independent signal pathways; LPS and IFN stimulate cells by activating NF-jB and the interferon regulatory ... the effects of inhibitors of PKA and PKC on TS-enhanced NO production As shown in Fig 5A, the PKA inhibitors KT-5720 and H8 and the PKC inhibitors Ro31-2880 and GF109203X did not affect apparently ... Eﬀects of PKA inhibitors (KT-5720 and H8) and PKC inhibitors (Ro31-8220 and GF109203X) on the enhancement by TS of LPS/IFNinduced NO production in VSMC (A), and Western blot analysis of PKCa...

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Báo cáo khoa học: Space, time and nitric oxide – neuronal nitric oxide synthase generates signal pulses pptx

Ngày tải lên : 07/03/2014, 00:20

... constants k1, k4 and k8 correspond to heme reduction; k2 and k5 correspond to oxygen binding; and k3 and k6 correspond to catalytic steps k7 and k9 correspond to the release of NO from ferric and ferrous ... k1, k4, k¢4 and k8 correspond to heme reduction; k2 and k5 correspond to oxygen binding; and k3 and k6 correspond to catalytic steps k7 and k9 correspond to release of NO from ferric and ferrous ... Salerno JC (2003) Nitric oxide synthases: domain structure and alignment in enzyme function and control Front Biosci 8, 193–209 37 Rossi S et al (2000) Oxygen delivery and oxygen tension in cerebral...

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Báo cáo khoa học: Transport of L-arginine and nitric oxide formation in human platelets pdf

Ngày tải lên : 08/03/2014, 02:20

... correlation between the L-arginine transport systems y+L and y+ and NO formation The effects of N-ethylmaleimide and L-leucine on L-arginine uptake and on NOx formation were closely correlated (y ¼ ... Atherosclerosis 117, 273–284 11 Wang, B.Y., Candipan, R.C., Arjomandi, M., Hsiun, P.T., Tsao, P.S & Cooke, J.P (1996) Arginine restores nitric oxide activity and inhibits monocyte accumulation after ... L-arginine uptake and NO formation as determined directly by the detection of NOx and indirectly by the assay of cGMP level, suggesting that the L-arginine transport systems y+L and y+ are both...

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