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reaction center and electron transport

Báo cáo khoa học: J1–Photosynthetic Light Harvesting and Reaction Center Complexes ppt

Báo cáo khoa học: J1–Photosynthetic Light Harvesting and Reaction Center Complexes ppt

Báo cáo khoa học

... photoreaction center (RC) of photosynthetic bacteria and green plants (photosystem I and II) In all known reaction centers the primary electron donor is a (bacterio)chlorophyll dimer, P, and the ... those cellular and ion transport processes controlling responses as diverse as stomatal, leaf and floral movements, hypocotyl elongation, nutrient uptake and inter- and intracellular transport The ... (pheophytin, quinone molecules and iron-sulfur centers) The nuclear wave packet formed by 18-fs excitation on the P* potential energy surface in native and mutant reaction centers (RCs) of Rhodobacter...
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Báo cáo Y học: Exploring the primary electron acceptor (QA)-site of the bacterial reaction center from Rhodobacter sphaeroides Binding mode of vitamin K derivatives pptx

Báo cáo Y học: Exploring the primary electron acceptor (QA)-site of the bacterial reaction center from Rhodobacter sphaeroides Binding mode of vitamin K derivatives pptx

Báo cáo khoa học

... been presented elsewhere [29] MATERIALS AND METHODS Quinone-depleted reaction centers Reaction centers from the strain R sphaeroides R-26 were isolated and purified in lauryldimethylamine-N-oxide ... naphthoquinone compounds and a detailed knowledge of their binding properties are of critical importance for the investigation of electron transfer reactions in photosynthetic reaction centers In this ... first electron transfer to QB Similarly, the mechanism of the – – proton-coupled electron transfer reaction [QAQB+ H+ fi – QA(QBH) ] was elucidated by Okamura and coworkers They showed that this reaction...
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dynamical symmetries for nanostructures implicit symmetries in single-electron transport through real and artificial molecules

dynamical symmetries for nanostructures implicit symmetries in single-electron transport through real and artificial molecules

Đại cương

... theory and quantum mechanics is therefore well established and has been exposed in numerous excellent handbooks A somewhat more subtle aspect featuring group theory and quantum mechanics emerged and ... two electrons, N = In the general case two more parameters enter the game, namely, the Coulomb and exchange energy of a two -electron system In our case both electrons are in orbital s-states, and ... spectrum and decays) Then we remain with a multiplet consisting of two singlets, (ground state S and exciton E2 ) and the spin triplet T , 20 HIDDEN AND DYNAMICAL SYMMETRIES OF ATOMS AND MOLECULES...
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Báo cáo lâm nghiệp:

Báo cáo lâm nghiệp: "Effects of light intensity on the growth and energy balance of photosystem II electron transport in Quercus alba " potx

Báo cáo khoa học

... excitation energy transfer from light harvesting complex II to the PS II reaction center and ΔF = F'm–Fs (16) The relative electron transport rate was calculated as ETR = [(F'm–Fs)/ F'm] × absorbed ... level on RCD and HT and changes in RCD and HT over the experimental period Due to significant interactions between light treatment and measuring dates, the RESULTS 3.1 Growth dynamics and biomass ... approximate redox state of the primary electron acceptor (1–qP) and the electron transport rate (ETR) The symbols are full light ( ), light shade (×), medium shade ( ), and high shade ( ) The data are...
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Modeling and simulation of electron transport through nanoscale heterojunctions

Modeling and simulation of electron transport through nanoscale heterojunctions

Cao đẳng - Đại học

... QUANTUM TRANSPORT The parameter and are the shorthand notation for time and momentum coordinates, 1=[k1 ,t1 ] etc., and the subscript c stands for integral around the contour in Fig.(2.1) and of ... interacting electron gas as independent or noninteracting quasiparticles, and the single electron theory can be applied straight forwardly to give satisfactory or acceptable results The transport ... review articles and books [11] , and we 1.1 NANOSCALE HETEROJUNCTIONS shall only discuss some relevant aspects related to electronic devices The simplest realization of a CNT electronics is perhaps...
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Báo cáo y học:

Báo cáo y học: "The Diels-Alder-Reaction with inverse-Electron-Demand, a very efficient versatile Click-Reaction Concept for proper Ligation of variable molecular Partners"

Y học thưởng thức

... classical Diels-Alder Reaction possess electron- rich dienes and electron- poor dienophile compounds, the DARinv exhibits exactly the opposite distribution of electrons This reaction (schema/table ... intermediate product is irreversible and switches the reaction to the product side Table (Scheme 1) The Diels-Alder -Reaction with inverse electron demand (DARinv) is shown R1 and R2 represent different ... high and quantitative reaction rate, 3) the potential for selective multiple reactions at the identical molecule, 4) the easy monitoring of the chemical reaction and 5) the feasibility of the reaction...
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The 1780s - the immediate post-Kantian reaction Jacobi and Reinhold

The 1780s - the immediate post-Kantian reaction Jacobi and Reinhold

TOEFL - IELTS - TOEIC

... tion, and he proceeded to write a lengthy and rather dense book on it, An Attempt at a New Theory of Human Capacities of Representation, published in  and dedicated both to Kant and Wieland. ... time); and, with Reinhold’s fame, Jena, also the home of the Allgemeine Literatur Zeitung and the Teutscher Merkur (the journal edited by Wieland and Reinhold), became the intellectual epicenter ... namely, sensibility and understanding, which perhaps spring from a common, but to us unknown root,” and repeatedly in the Critique of Judgment he spoke about the indeterminate and indeterminable...
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A study of difficulties in learning english listening skill for beginners in the asemlink of intrernational languages center and some suggested solutions

A study of difficulties in learning english listening skill for beginners in the asemlink of intrernational languages center and some suggested solutions

Khoa học xã hội

... answers include: listen and draw; listen and color; listen and reorder the scrambled pictures; listen and marking worksheets; listen and trace the route on the map; listen and perform physical actions; ... those problems and the sollutions for both teachers and learners in teaching and learning the listening skill Therefore, the author applied the qualitative and quantitative methods and descriptive ... is more, in teaching and learning English listening skill in Vietnam in general and in the Asemlink center in particular, teachers and learners cope with a lot of problems and difficulties because...
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Tài liệu WORKSHOP ON NUCLEAR REACTION DATA AND NUCLEAR REACTORS: PHYSICS, DESIGN AND SAFETY doc

Tài liệu WORKSHOP ON NUCLEAR REACTION DATA AND NUCLEAR REACTORS: PHYSICS, DESIGN AND SAFETY doc

Vật lý

... right-hand side and then expressing these coordinates by those on the lefthand side The vectors Qn are the intercluster coordinates ρk , see eq (2.35) and fig 1, on the left- and right-hand sides, ... differences, advantages and disadvantages I discuss in some detail in the following the He-system and the Lisystem, which contains another standard reaction Li (n,t)4 He The reaction 10 B(n,α) closes ... and a semi-realistic one, which will be used later on on the Li(n,t) reaction, are compared to data and the R-matrix analysis At forward and backward angles large discrepancies between data and...
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Tài liệu Báo cáo khoa học: Enzymatic and electron paramagnetic resonance studies of anabolic pyruvate synthesis by pyruvate: ferredoxin oxidoreductase from Hydrogenobacter thermophilus doc

Tài liệu Báo cáo khoa học: Enzymatic and electron paramagnetic resonance studies of anabolic pyruvate synthesis by pyruvate: ferredoxin oxidoreductase from Hydrogenobacter thermophilus doc

Báo cáo khoa học

... ferredoxins, Fd1 and Fd2, from this bacterium are considered to serve as low-potential electron donors for this key reaction [8] POR is distributed among archaea, bacteria and anaerobic protozoa, and is ... coupled assay also demonstrated that Fd1 and Fd2 function as electron mediators for POR (and also for OGOR) [45] in both the oxidative and reductive reactions These results corroborate the operation ... would lead to a deeper understanding of the overall reaction mechanism of this enzyme Materials and methods Bacterial strains and growth conditions Escherichia coli JM109 and BL21(DE3) were used as...
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Tài liệu Báo cáo khoa học: A novel electron transport system for thermostable CYP175A1 from Thermus thermophilus HB27 doc

Tài liệu Báo cáo khoa học: A novel electron transport system for thermostable CYP175A1 from Thermus thermophilus HB27 doc

Báo cáo khoa học

... between 350 and 600 nm multistep chromatography, and identified the electron transport proteins The system utilized NADPH as a source of electrons, and was composed of Fdx (TTC1809) and FNR (TTC0096) ... Thermostable electron transport system T Mandai et al purified CYP175A1, NADPH, and the 100 mm KCl fraction from the DE52 column (data not shown) The peak was subjected to SDS ⁄ PAGE, and a single band ... the electron transport system is composed of ferredoxin (Fdx) and 2-oxoacid:Fdx oxidoreductase (OFOR), and utilizes pyruvate as an electron source rather than NAD(P)H [13,14] On the other hand,...
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Tài liệu Báo cáo khoa học: Cytochrome b559 content in isolated photosystem II reaction center preparations docx

Tài liệu Báo cáo khoa học: Cytochrome b559 content in isolated photosystem II reaction center preparations docx

Báo cáo khoa học

... molecular mass standards; lanes 1, 2, 3, and 5: increasing amounts of RC1 complex (5–43 lM reaction centers); lanes and 7: a duplicate of PSII membranes whose amounts of a-subunit and D1 fit within ... densities of the two respective bands in the blot (Fig 1) RC1 and RC2 show similar ratios, but RC3 and especially RC4 and RC5 showed much higher ratios The results of Tables and demonstrate that increasing ... cytochrome b559 in the photosystem II reaction center Biochemistry 33, 10060–10068 Shuvalov, V.A (1994) Composition and function of cytochrome b559 in reaction centers of photosystem II of green...
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Tài liệu U.S. ARMY MEDICAL DEPARTMENT CENTER AND SCHOOL FORT SAM HOUSTON, TEXAS 78234-6100 doc

Tài liệu U.S. ARMY MEDICAL DEPARTMENT CENTER AND SCHOOL FORT SAM HOUSTON, TEXAS 78234-6100 doc

Nông nghiệp

... grade and class of chicken is procured by the Armed Forces for troop consumption? a Grade A, all classes b All grades and Classes and c Grade A and Classes 1, 2, and d Grade A or better and Class ... becomes firm and rigid Young chickens are rangy, the meat is light and soft, and the fat is evenly distributed Older chickens are more blocky, their meat is darker and tougher, and the fat is ... wishbone and keel; and finally over the back and hips On well-finished chickens, the fat over the breast, drumsticks, and thighs makes the flesh difficult to see Fat is patchy in older chickens and...
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Tài liệu Báo cáo khoa học: Reconstitution of coupled fumarate respiration in liposomes by incorporating the electron transport enzymes isolated from Wolinella succinogenes docx

Tài liệu Báo cáo khoa học: Reconstitution of coupled fumarate respiration in liposomes by incorporating the electron transport enzymes isolated from Wolinella succinogenes docx

Báo cáo khoa học

... phospholipid)1) were used in experiments III and V The concentration of DMN in the reaction mixture at reaction time zero was 5.2 lM (I) and 9.2 lM (II and III) Fumarate reduction by H2 was recorded ... the axial ligand H200 of the distal heme group and by residues N128 and Q131 in the stretch connecting the hydrophobic parts of helices II and III specically affected in mutants N128D and Q131L, ... the proteoliposomes catalyzing electron transport from formate to fumarate Biochim Biophys Acta 725, 4148 Jones, R.W & Garland, P.B (1977) Sites and specicity of the reaction of bipyridylium compounds...
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Báo cáo khoa học: Re-evaluation of the function of the F420dehydrogenase in electron transport ofMethanosarcina mazei potx

Báo cáo khoa học: Re-evaluation of the function of the F420dehydrogenase in electron transport ofMethanosarcina mazei potx

Báo cáo khoa học

... dehydrogenase in Ms mazei C Welte and U Deppenmeier A B Fig Model of the branched electron transport pathway in Methanosarcina mazei (A) Membrane-bound and (B) cytoplasmic electron transport in Ms mazei ... rates and methane-formation rates with trimethylamine as a substrate, cell lysates and washed membrane preparations of the wild-type and the mutant strains were prepared and the coupled redox reaction ... clostridial Fdred and reduce F420 The kinetic parameters of the reaction exhibited a maximal velocity (Vmax) of 225 mUặmg)1 of protein and KM values of and 0.5 lm for F420 and Fdred, respectively...
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Báo cáo khoa học: Thermosynechoccus elongatus DpsA binds Zn(II) at a unique three histidine-containing ferroxidase center and utilizes O2 as iron oxidant with very high efficiency, unlike the typical Dps proteins ppt

Báo cáo khoa học: Thermosynechoccus elongatus DpsA binds Zn(II) at a unique three histidine-containing ferroxidase center and utilizes O2 as iron oxidant with very high efficiency, unlike the typical Dps proteins ppt

Báo cáo khoa học

... (Cys30 and Cys69, respectively) and in the BCloop (Cys102, Cys103, and Cys114) The X-ray crystal structure clearly shows that Cys30, Cys69 and Cys114 are completely buried in the monomer, and that ... gray, blue, and yellow Water molecules are shown as spheres and depicted in red; zinc ions are shown as spheres and depicted in gray (B) Electron density map 2Fo – Fc of the ferroxidase center contoured ... 30 and 48 A2 in the A-site and the B-site, respectively, and thus points to tighter binding of the metal to the former site Accordingly, the distances between Zn(II) and the pro˚ tein ligands...
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Báo cáo khoa học: Adventitious reactions of alkene monooxygenase reveal common reaction pathways and component interactions among bacterial hydrocarbon oxygenases ppt

Báo cáo khoa học: Adventitious reactions of alkene monooxygenase reveal common reaction pathways and component interactions among bacterial hydrocarbon oxygenases ppt

Báo cáo khoa học

... FEBS Reactions contained lM of epoxygenase and 12 lM each of reductase and GST-coupling protein fusion in a total volume of 100 lL; the headspace concentration of alkyne was 11% (v ⁄ v) and the reaction ... using 40 lM epoxygenase and reaction times of (solid line), 10 (dotted line) and 15 (dashed line) Error bars show standard deviations from three experiments The peroxide shunt reaction in AMO showed ... whole-complex reactions except that reductase and (except where stated otherwise) the coupling protein were omitted and the reaction was started by adding hydrogen peroxide instead of NADH The reaction...
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Integrated Systems of Meso-Meteorological and Chemical Transport Models docx

Integrated Systems of Meso-Meteorological and Chemical Transport Models docx

Tự động hóa

... Meso-Meteorological and Chemical Transport Models Alexander Baklanov Alexander Mahura Ranjeet S Sokhi l l Integrated Systems of Meso-Meteorological and Chemical Transport Models Editors Prof Alexander Baklanov ... NWP and air quality modellers to discuss and make recommendations on the best practice and strategy for further developments and applications of integrated and coupled modelling systems “NWP and ... 215 Alexander Baklanov, Sander Tijm, and Laura Rontu 22 Summary and Recommendations on Integrated Modelling 229 Alexander Baklanov, Georg Grell, Barbara Fay, Sandro Finardi, Valentin...
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Báo cáo khoa học: Effect of magnesium ions on the activity of the cytosolic NADH/cytochrome c electron transport system pptx

Báo cáo khoa học: Effect of magnesium ions on the activity of the cytosolic NADH/cytochrome c electron transport system pptx

Báo cáo khoa học

... 10 and reaction stopped at 15 (a); at addition of mM MgCl2, at 10 addition of lM cyto-c, and the reaction stopped at 15 (Mg-c); at addition of lM cyto-c, at 10 addition of mM MgCl2, and the reaction ... ions and cytosolic cytochrome c oxidation prerequisite to study the activity of the respiratory chain, but becomes mandatory for the new, additional and independent NADH/cyto-c electron transport ... in 1969 [14] and invoked in 1981 [15] and 2002 [16]) to shuttle electrons between the cyto-b5 of MOM and the cytochrome oxidase of MIM is in contrast with the already mentioned and well-known...
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Báo cáo khoa học: Functionally distinct dopamine and octopamine transporters in the CNS of the cabbage looper moth* potx

Báo cáo khoa học: Functionally distinct dopamine and octopamine transporters in the CNS of the cabbage looper moth* potx

Báo cáo khoa học

... this transporter has little afnity for octopamine as a transport substrate [11] The moth octopamine transporter (TrnOAT), on the other hand, has similar and high afnity for both dopamine and octopamine ... catecholamine transporter cDNA was identied and cloned by RT-PCR using degenerate primers designed to conserved regions of mammalian dopamine and GABA transporters with rst-strand cDNA from T ... afnity-type DATs and OATs Neurotransmitter transporters are normally named after their tissue context and/ or substrate they transport most efciently [12,34] Although TrnDAT and TrnOAT have similar...
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