Effect of Charge and Composition on the Structural Fluxionality andStability of Nine Atom Tin-Bismuth Zintl Analogues

... that the interconversion could occur under normal conditions of temperature However, this is not the case for the other Sn9 anions The charge has a major effect on the fluxional behavior of the ... substitution have on the relative stability of the two isomers? Furthermore, what role the sizes of the constituent atoms play as one substitute a larger Bi atom in place of a Sn atom? The purpose of ... that the size of a Bi atom is larger than that of a Sn atom Hence, while the replacement of Sn by Bi enables one to control the overall charge, the substitution of Sn by Bi also involves the effect...

Effects of simultaneous doping with boron and phosphorous on the structural, electronic and optical properties of silicon nanostructures

... asymptotically the value of the band-gap of the undoped Si-nw This is another indication of how doping can modify the electronic and optical properties of the Si nanostructures Conclusions 3.2 3.4 ... systematic analysis of the effect of the B and P codoping in Si-nw, concentrating not only on the structural properties but also on how doping inﬂuences the electronic and optical properties Here, ... concentrate on the dependence of the doped Si-nw properties on the dopant concentration, we note ﬁrst that on augmenting the number of atoms in the cell (thus lowering the dopant concentration),...

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Báo cáo hóa học: " Effect of the Nd content on the structural and photoluminescence properties of silicon-rich silicon dioxide thin film" pdf

... http://www.nanoscalereslett.com /content/ 6/1/161 function of the Nd concentration and the annealing temperature in relation with their microstructures The Nd- doped silicon- rich silicon oxide (SRSO) thin layers were synthesized ... emission of Nd3 + ions is more efficient while Si-np are formed, and while the Nd content is low (0.08 at.%) In such conditions, Nd3 + ions benefit from the sensitizing effect of Si-np and from the ... doi:10.1186/1556-276X-6-161 Cite this article as: Debieu et al.: Effect of the Nd content on the structural and photoluminescence properties of silicon- rich silicon dioxide thin films Nanoscale Research Letters 2011...

Effect of dissolved organic matter (DOM) and biofilm on the adsorption capacity of powdered activated carbon in activated sludge

... with incubation time In other word, the adsorption capacity of PAC increased with increase in the amount of organic carbon on PAC The adsorption capacity of PAC after 4th incubation was almost the ... of organic carbon on PAC after each incubation Figure Figure shows the adsorption isotherm of new PAC, PAC in the aeration tank, and PAC after 1st and 4th incubation The adsorption capacity of ... decrease the adsorption capacity of PAC for 3,5-DCP To clarify the effect of biofilm on the adsorption capacity of PAC, PAC covered with biofilm was made and its adsorption capacity was compared to the...

Tài liệu Báo cáo khoa học: Effect of ionic strength and oxidation on the P-loop conformation of the protein tyrosine phosphatase-like phytase, PhyAsr docx

... al Effect of ionic strength and oxidation on PhyAsr A A R258 R258 C252 OCS 252 B B R258 R258 OCS252 C252 Fig (A) Conformation of the P-loop at low ionic strength in the absence of ligand The P-loop ... Structure of PhyAsr under low and high ionic strength conditions To examine the structural effect of ionic strength on the P-loop, X-ray crystal structures of PhyAsr were determined at several ionic strengths, ... [30] The ionic strength P was calculated using the equation I = ½ ciZi2, where I is the ionic strength of the solution, and ci and Zi are the concentration and charge of species i, respectively The...

Báo cáo khoa học: Inﬂuence of divalent cations on the structural thermostability and thermal inactivation kinetics of class II xylose isomerases pdf

... enzyme’s inactivation kinetics, the inactivation course of TNXI in the presence of various metal concentrations and metal combinations was determined Figure shows the inactivation courses of apo-TNXI ... courses of apo-TNXI and of TNXI in the presence of mm concentrations of each of the three divalent cations (Mg2+, Mn2+, or Co2+) With the exception of apo-TNXI, whose inactivation was ﬁrst-order, ... (kcal/mole·K) Thermostability of class II xylose isomerases TTXI ECXI TNXI TNXI* Fig Effect of metals on the Tm values of class II XIs DT is the difference between Tm (enzyme in the presence of lM single...

Báo cáo khoa học: Effect of mutations at Glu160 and Val198 on the thermostability of lactate oxidase doc

... in the thermal-inactivation curves of the V198I mutant and wild-type lactate oxidases (Fig 2) This indicates that the V198I mutation affects the thermostability of the E160G mutant lactate oxidase, ... [S] and V are, respectively, the L -lactate concentration and the initial reaction rate Results and discussion Irreversible enzyme inactivation assay of mutant lactate oxidases at position 160 On ... activity of V198I lactate oxidase was approximately the same as that of wild-type lactate oxidase, and that of E160G/V198I mutant lactate oxidase was approximately the same as that of E160G (data...

Báo cáo Y học: Effect of ibuprofen and warfarin on the allosteric properties of haem– human serum albumin A spectroscopic study potx

... extended conformation Remarkably, ibuprofen, a nonsteroidal anti-inﬂammatory agent [12], and warfarin, an anticoagulant drug [12], are considered as stereotypical ligands for Sudlow’s site II and Sudlow’s ... HSA inhibits ibuprofen and warfarin association to the warfarin primary cleft (i.e Sudlow’s site I), corresponding to the ibuprofen secondary site [1,3,11] Then, ibuprofen and warfarin impair ... may reﬂect a conformational transition(s) towards a ferric HSA –haem state where slowly exchanging water molecules are far apart from the paramagnetic centre On the other hand, the lifetime of...

Báo cáo hóa học: " Effects of silver impurity on the structural, electrical, and optical properties of ZnO nanowires" doc

... J/cm2, and the shot area on the target surface was 0.042 cm2 Before the deposition, there should be pre-deposition process for The deposition process continued for 30 The structural and (a) (b) optical ... http://www.nanoscalereslett.com/content/6/1/552 (a) Au catalyst Page of (c) EDS (b) (103) ZnO NW nm Figure TEM images of 3SZO NW (a) The location and the size of the Au catalyst, the present of Au catalyst, is demonstrated the ... enables the synthesis of oxide NWs while controlling the doping concentration feature The doping could be controlled by adjusting the target composition since it guarantees the transfer of the composition...

Báo cáo hóa học: " The Effect of Single, Binary and Ternary Anions of Chloride, Carbonate and Phosphate on the Release of 2,4-Dichlorophenoxyacetate Intercalated into the Zn–Al-layered Double Hydroxide Nanohybrid" pot

... solutions: chloride, carbonate and phosphate and the combination of them by adding about 0.34 g of ZANDI into a 500 ml of the aqueous solution The accumulated amount of 2,4-D released into the ... Fig Release proﬁles of 2,4-D from the interlamellae of ZANDI, the nanohybrid into various aqueous solution systems containing single, binary and ternary anions of chloride, carbonate and phosphate ... Fitting the data of the release of 2,4-D from the interlamellae of ZANDI, the nanohybrid into various aqueous solutions systems containing single, binary and ternary anions: chloride (a), carbonate...

Báo cáo hóa học: "Inﬂuence of Rare Earth Doping on the Structural and Catalytic Properties of Nanostructured Tin Oxide" docx

... Sn#1000 Conversion/Selectivity (%) Conversion/Selectivity (%) ð1Þ The effects of the process of segregation and de-mixing of these rare earths on the SnO2 catalytic properties were studied and compared ... modiﬁcation of the nanostructure and the basic sites of the particles Another phenomenon starts to occur on the surface of doped samples, a segregation process of particles of metastable solid solution, ... on the morphology and properties of tin oxide Rare earth cations have, as yet, been little explored as tin oxide dopants for catalytic purposes However, the consensus is that their inﬂuence on...

Báo cáo lâm nghiệp: "Effect of gibberellic acid and ethephon on the germination of European beech dormant and chilled beechnuts" pptx

... effect of gibberellic acid and ethephon on overcoming beechnut dormancy and stimulation of beechnut germination Materials and methods Seeds Three beechnut seedlots with a moisture content of 8.6–9.0% ... mg·l–1 of ethephon or 40 mg·l –1 of GA 3, – dormant seeds treated with 100 mg·l–1 of ethephon or 300 mg·l–1 of GA3, – dormant seeds treated with 120 mg·l–1 of ethephon or 1,000 mg·l–1 of GA3, – dormant ... apparent effect of different concentrations of ethephon or GA3 on germination capacity The only exception was the application of 1,000 mg·l–1 GA3 to dormant seeds that reduced the MGT to six weeks...

Báo cáo khoa học: "Effect of endomycorrhizas and nematodes on the growth of seedlings of Dicorynia guianensis Amshoff, a tree species of the tropical rain forest in French Guiana " docx

... observations on both seedlings and mature trees of D guianensis in French Guiana (Béreau and Garbaye, 1994) ance The analysis of variance of the data was first performed two-ways (four blocks and ... observed on two Caesalpinioideae, including Dicorynia guianensis Amshoff (local names: Angélique, Basralocus, Angelica Para, Tapiuna), an important timber species economically Thus, the aim of the ... (data not shown): the growth of seedlings of two other endomycorrhizal species of Caesalpiniaceae from the rain forest (Eperua falcata Aublet and Recordoxylon speciosum Benoist Norm and Mar) the...

Báo cáo y học: "Protective effects of total fraction of avocado/soybean unsaponifiables on the structural changes in experimental dog osteoarthritis: inhibition of nitric oxide synthase and matrix metalloproteinase-13" docx

... predominantly involved in matrix degradation in the more superficial zones of cartilage These results support the hypothesis that the reduction in collagen degradation in the deep zone of cartilage ... alpha2delta ligand, reduces the development of experimental osteoarthritis by inhibiting metalloproteinases and inducible nitric oxide synthase gene expression and synthesis in cartilage chondrocytes Arthritis ... layers The total number of chondrocytes and those staining positive in each zone for the specific antigen were determined The final results were expressed as the percentage of chondrocytes staining...

A STUDY ON THE STRUCTURAL FEATUES OF ENGLISH NEWS STORY.DOC

... “one of the reasons to make the paragraphs consisting one sentence is due to the work of ordering the lay-out of a newspaper Otherwise, the one-sentence paragraphs are usually easier to read than ... methods and design of the study Part B is the main part of the study that consists of three chapters below • Chapter I focuses on the theories of the study • Chapter II is an Analysis of the structural ... is newspaper Neither the advent of television nor that of internet could affect the importance of the newspaper The reason for it is the width, breadth and the depth of news provided by the newspaper,...

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