mudcake and formation interaction
Teacher questioning strategies and Classroom interaction in Ly Thai To school
... learning and creative use of English Teacher can achieve this by establishing informal and warm-hearted interaction between teacher and learners, as well as among learners themselves This friendly interaction ... classroom interaction and other cultural classroom interaction? For such purposes and for providing some suggestions for Vietnamese English language teachers, based on the 17 principals and facets ... classroom interaction in L2 acquisition Language classroom can be seen as sociolinguistics environments (Cazden, 1988) and discourse communities (Hall and Verplaetse, 2000) in which interaction...
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Tài liệu Báo cáo khoa học: Structure and membrane interaction of the internal fusion peptide of avian sarcoma leukosis virus pdf
... to monitor the interaction between the peptide and lipid vesicles of DMPC/DMPG (1 : 1, molar ratio) with a suspension containing 0.06 lM and 300 lM of the NBD-labelled peptide and phospholipid, ... condition and staining method followed the procedures given in PhastSystem handbook (ref no 80-1312-29 and 80-1312-30, respectively) Compositions of the buffer system in the gel, buffer strips and ... which also displays the results for IFP–F13 and IFP–V13 All peptide analogues exhibit diffuse bands and migrate roughly as dimeric species, with F13 and V13 variants forming oliogomers of slightly...
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Tài liệu Báo cáo khoa học: Plant a-amylase inhibitors and their interaction with insect a-amylases ppt
... activity PPA and HSA 0.19 T aestivum PPA and HSA 0.53 T aestivum HSA and PPA (low) 0.28 WRP25 T aestivum T aestivum PPA and HSA None WRP26 T aestivum None WRP27 T aestivum None 1,2 and BIII S cereale ... 2A Ó FEBS 2002 catalytic site and the ligand binding residues [20,21] Domain B is globular and is inserted into domain A It is formed by several extended segments and a short a helix (residue ... 1) and forms a separated folding unit, exclusively made of b sheet Eight of the 10 strands fold into a b sandwich structure with ÔGreek keyÕ topology The conservation of the interface of A and...
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Tài liệu MECHANICAL PROPERTIES OF THE HEART AND ITS INTERACTION WITH THE VASCULAR SYSTEM ppt
... understanding of the heart as a muscular pump and of the interaction between the heart and the vasculature The concepts of contractility, preload and afterload are paramount to this understanding and ... bundles of myosin strands with each strand having a tail, a hinge and a head region The tail regions bind to each other in the central portion of the filament and the Page of 23 strands are aligned ... troponin and tropomyosin Tropomyosin is a thin protein strand that sits on the actin strand and, under normal resting conditions, covers the actin-myosin binding site thus inhibiting their interaction...
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Báo cáo khoa học: Typical 2-Cys peroxiredoxins – modulation by covalent transformations and noncovalent interactions doc
... covalent transformations of (a) Thr90 catalyzed by CDK1, (b) CysR by autophosphorylation and (c) CysP assisted by Srx, and noncovalent interactions that drive the quaternary structure to the formation ... modifications and noncovalent interactions that trigger the appropriate response to oxidative stress At the forefront of this goal is the demand for biochemical mechanisms to identify protein targets and ... (2001) Structural, redox, and mechanistic parameters for cysteine-sulfenic acid function in catalysis and regulation Adv Protein Chem 58, 215–276 53 Allison WS (1976) Formation and reactions of sulfenic...
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Báo cáo khoa học: C-terminal, endoplasmic reticulum-lumenal domain of prosurfactant protein C – structural features and membrane interactions ppt
... envelope between 11 and 26 charges (m ⁄ z 4982–2108) was observed, and for hexamers and nonamers, complete envelopes between 20 and 35 charges (m ⁄ z 5480–3132) and between 28 and 37 charges (m ... 1.2 and 1.9 kV, and cone and RF lens potentials were 100 and 38 V, respectively The pumping of the ESI interface region was restricted; backing pirani vacuum gauge from 1.8 to 1.95 mbar, and ... b-strand conformation; and (e) CTC added in trans prevents SP-C from forming amyloid fibrils [14] These findings suggest that CTC works as a specific scavenger of misfolded SP-C in the ER and thereby...
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Báo cáo khoa học: Identification, subcellular localization and functional interactions of PilMNOWQ and PilA4 involved in transformation competency and pilus biogenesis in the thermophilic bacterium Thermus thermophilus HB27 ppt
... PilA4 and PilQ are individually essential for transformation and piliation [7,8] In contrast to PilQ and PilA4, an individual role of PilM, PilN, PilO and PilW in natural transformation and piliation ... pil cluster could not be excluded, and therefore the question of whether the products of pilM, pilN, pilO and pilW each play a role in natural transformation and piliation is still open Here, ... for natural transformation of T thermophilus HB27 Furthermore, we present the first information on the subcellular localization of the PilMNOWQ and PilA4 competence proteins and on the effect...
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Cadmium and zinc interactions and their transfer in
... WA was 47 and 17 times higher than the contents found at YA and MA in spring wheat lands, respectively, and 46 and 20 times in corn lands, respectively Soil Zn concentration at WA was and 1.5 times ... applications and industrial wastewater irrigation, and partially from aerial deposition and the usage of fertilizers and pesticides ŽMench et al., 1994; Ullrich et al., 1999; Nan and Zhao, 2000; ... at WA was and 1.5 times higher than the contents found at YA and MA in spring wheat lands, respectively, and and 2.4 times in corn lands, respectively These facts could be the result of differences...
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Báo cáo khoa học: What’s in a covalent bond? On the role and formation of covalently bound flavin cofactors doc
... et al On the role and formation of covalently bound flavin cofactors A B Fig (A) All known types of covalent flavin–protein linkages FMN is show in black, FAD in black and gray, and known linking ... 8a-histidyl–flavin, tyrosyl–flavin or cysteinyl– flavin formation B1–B3 represent active site bases potentially involved in covalent flavinylation, and L stands for the ligand amino acid (histidine, tyrosine, or ... noncovalently, and is also able to perform catalysis The apo and holo forms of this VAO mutant display highly similar crystal structures, indicating that, prior to self-catalytic cova- On the role and formation...
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Báo cáo khoa học: Contributions to catalysis and potential interactions of the three catalytic domains in a contiguous trimeric creatine kinase doc
... remaining domains Both CyCK and MtCK have been shown to undergo substantial conformational changes upon substrate binding, and it is reasonable to expect that similar movements and interactions also occur ... the case, and that these interactions may be representative of a suite of interactions and structural changes that are required for catalysis across this entire enzyme family Results and Discussion ... when MgADP, creatine and nitrate are bound to CKs This transition involves the movement of two flexible loops (residues 60–72 and 323–333 in both Torpedo and rabbit CyCKs) and ˚ at the N-terminus,...
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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
... close biochemical and, apparently, structural similarities There is complete conservation of the protein ligands to the binuclear iron site (four glutamyl and two histidyl residues) and all catalyse ... inhibition and activity assay protocols we have been able to produce large amounts of pure high-activity AMO and to perform a more thorough investigation of its interaction with alkynes and hydrogen ... epoxypropane formation as described in the Experimental procedures, using 40 lM epoxygenase and reaction times of (solid line), 10 (dotted line) and 15 (dashed line) Error bars show standard deviations...
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sno2 - fe2o3 hierarchical nanostructure hydrothermal preparation and formation mechanism
... (JCPDS file no 33-0664) were observed No compounds of tin and iron Fig XRD patterns of (a) sample and (b) sample X stands for a-Fe2O3; O stands for SnO2 W.-W Wang / Materials Research Bulletin ... employed to determine the composition of nanosheets and nanorods, respectively Both nanosheets and nanorods contained Fe, Sn and O elements (Fig 2c and d; copper came from the TEM copper grid of the ... between SnO2 nanorods and Fe2O3 nanosheets is a very important factor in heterostructure growth and it is Fig (a) TEM micrograph; (b) SEM micrograph; (c) and (d) EDS spectra; (e) and (f) HRTEM micrographs...
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chronopotentiometric stripping analysis of gelatinase b, collagen and their interaction
... measurements were performed with AUTOLAB Analyzer (EcoChemie, Netherlands) connected to VA-Stand 663 (Metrohm, Switzerland), using a standard cell with three electrodes A hanging mercury drop elec ... 539 CPSA of Gelatinase B, Collagen and Their Interaction Fig Dependences of MMP-9 (1 ng/mL) peak height on A) pH of acetate buffer, B) stripping current and C) and inset, MMP-9 concentration The ... Signals of collagen, MMP-9 and collagen after interaction with MMP-9 measured by AdTS CPSA (interaction time: 30 s) D) Height of CPSA peaks of collagen (0.5 or mg/mL) after interaction with MMP-9...
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Báo cáo khoa học: Crystal structure of RNase A tandem enzymes and their interaction with the cytosolic ribonuclease inhibitor potx
... (residues 51–57), a b-strand (residues 61–63) and a loop region (residues 75–79) of the N-terminal entity, and a-helix I¢ (residues 4¢–12¢), a loop region (residues 13¢–18¢) and the end of a-helix ... substrate] and cytotoxic (IC50 values between 12.9 lm and 40.0 lm with mammalian K-562 cells) All three variants showed thermodynamic stabilities similar to that of monomeric RNase A, and were ... by the interactions, and even though His12¢, which is an essential component of the active site [24], is part of helix I¢, its side chain points away from the interface Nevertheless, the tandemization...
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Báo cáo khoa học: The starch-binding capacity of the noncatalytic SBD2 region and the interaction between the N- and C-terminal domains are involved in the modulation of the activity of starch synthase III fromArabidopsis thaliana pdf
... D2 domain and D(495–535) in the D3 domain, are involved in the interaction with CD, and that this interaction enhances the catalytic activity of the enzyme Our results show that the interaction ... D23, D1, D2 and D3 We determined a positive interaction between protein D23 and CD (Fig 2C, lane 1), and this result was also confirmed by far western blotting (Fig 2D) However, a lack of interaction ... St2.2, St2.3, St3.2 and St3.3 (see Fig 1) We determined a positive interaction between St2.1 and St3.3 with CD (Fig 3A, B), whereas St2.2, St2.3 and St3.2 proteins showed no interaction with CD...
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Báo cáo khóa học: The C-terminal t peptide of acetylcholinesterase forms an a helix that supports homomeric and heteromeric interactions potx
... residues (one lysine, two arginines and one histidine), which might form internal salt bridges between residues D4 or E5 and R8, between E7 and K11, and between E13 and R16, as analyzed in a further ... residues 21 and 22 would bring the N-terminal and C-terminal ends into close proximity To obtain information on the articulation between the catalytic domain and the t peptide, we analyzed the formation ... with the QN-CC construct was maximal for cysteines at positions and 4, bracketed by a decrease at and and a smaller increase at and AChET subunits with cysteines at positions 19 or 21 did not...
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Báo cáo khoa học: Azotobacter vinelandii rhodanese Selenium loading and ion interaction studies potx
... maintained at 23 °C, and the protein concentration was kept constant at lM The excitation and emission bandwidths were and nm, respectively The excitation wavelength was set at 286 nm, and the spectra ... the methyl groups of Leu238 and Leu180 face Arg235 and Trp195, the residues affected by the conformational changes around the active site, thus these are likely candidates to be affected by the ... Azotobacter vinelandii highlights the evolutionary relationship between the rhodanese and phosphatase enzyme families J Mol Biol 298, 691–704 Ó FEBS 2003 Rhodanese interaction with ions and selenium...
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Gauge Theoriesof the Strong and Electroweak Interactions
... understanding of light, or – about a century later – the unification of electromagnetism and weak interactions Nowadays one distinguishes four fundamental interactions: a) Electromagnetic interactions ... (1.2) 1.1 Particles and Interactions b) Weak interactions They are responsible for the β - decay and other processes range ≈ 10−18 m (1.3) relative strength ≈ 10−5 (1.4) c) Strong interactions They ... be candidates 12 INTRODUCTION The Standard Model This means the theory of Glashow, Weinberg and Salam (G.W.S.) plus QCD There is no mixing between the Lagrangians for electroweak and strong interactions,...
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doctoral dissertation. optical and electrical interaction in self-assembled metal nanoparticle superstructures, 2008, p.72
... noble metals and thiol ligands The desired chemical characteristics and functionality of the nanoparticles is achieved by choosing the capping ligand layer and thus, directing the interactions ... superstructure formation and the final structure of the aggregate [11] On the other hand, the coagulation of the nanoparticles is often unwanted and thus the basic knowledge of the cluster formation ... considered and the effects of size and geometry have not been taken into account [85, 86] The layer of the capping ligand also shifts towards higher wavelengths and dampens the plasmon band of individual...
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báo cáo hóa học: " Gliovascular and cytokine interactions modulate brain endothelial barrier in vitro" docx
... restrict paracellular transport and depend on biochemical support and interaction with astrocytes and neurons [70,71] We attempted to identify specific responses involving interactions between astrocytes, ... conceived and performed the majority of the experiments, analyzed data and wrote the study WEC assisted in performing experiments and revising the manuscript SW and MJ assisted with experiments and ... interpretation and revision of the study JSA helped conceive, analyze and interpret data and assisted in writing the manuscript All authors read and approved the final manuscript Authors’ information...
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