textural properties of the catalysts in the n alkylation of benzyl alcohols with anilines
Supported group II transition metal catalysts in liquid phase reactions using borrowing hydrogen methodology 1
Ngày tải lên :
09/09/2015, 10:14
... reactions including the N- alkylation of amines by alcohols, reductive vi N- alkylation of nitroarenes by alcohols, and self-coupling of aromatic amines, in all cases using the borrowing hydrogen methodology ... pre-treatments Table 4-1 Textural properties of the catalysts in the N- alkylation of benzyl alcohols with anilines Table 4-2 N- alkylation of aniline with benzyl alcohol over various catalysts ... conversion of aniline to secondary amine/imine at 120 oC as a function of average particle size of Ag in Ag/Al2O3 catalysts Figure 4-6 N- alkylation of aniline with benzyl alcohol in the presence...
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Đề tài " Extension properties of meromorphic mappings with values in non-K¨ahler complex manifolds " pot
Ngày tải lên :
22/03/2014, 16:20
... sequence {sn } ⊂ A converging to s0 ∈ A, and therefore if we take nonintersecting B n (sn ) we obtain µ(S) ≤ n µ(B n (sn )) = −∞ This is a contradiction Further increasing of the dimension is now ... containing KC and moreover KC is an open subset of K Of course, in general the dimension of irreducible components of Cf is not bounded, and in fact the space Cf is too big Let us denote by Gf the ... EXTENSION PROPERTIES OF MEROMORPHIC MAPPINGS 809 Thus, all connected components of φ−1 (z) should be compact Let K denote the union of connected components of φ−1 (z) intersecting Gf,C0 Since...
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COMPARATIVE ANALYSIS OF TEXTURAL PROPERTIES OF SBA-15
Ngày tải lên :
08/08/2015, 19:35
... illustrated in Fig may also play an important role in the synthesis by modification of the electrostatic interaction or the local curvature energy at the interface of the inorganic silica and the surfactant ... surfactant Cl Fig 5: Molecular model of the transition metal-PEO interaction In the case of synthesis mixture containing metal ions, the modified pathway can be now denoted as REFERENCES 554 ... Moulijin, T W N M Van Lee Wel, A Van Santeen Catalysis An integrated approach to homogeneous, Heterogeneous and industrial catalysis, NAOK, Netherlands, 428-437 (1993) Vinh-Hoang Thang Synthesis,...
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Đề tài " Ergodic properties of rational mappings with large topological degree " pot
Ngày tải lên :
06/03/2014, 08:21
... several interesting conversations Numerical invariants In this section we define and establish inequalities between several numerical invariants This involves some technicalities because our mappings ... does not depend on the choice of desingularization In other words, f ∗ α is the trivial extension, as current, of (f|X\If )∗ α through If This definition induces a linear action on the cohomology ... is fixed, n |Y denotes the restriction of n to Y and ( n |Y )ε is the ε-neighborhood of n |Y in n A canonical invariant measure µf Theorem 2.1 Let f : X → X be a rational mapping such that...
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Tài liệu Báo cáo Y học: Short peptides are not reliable models of thermodynamic and kinetic properties of the N-terminal metal binding site in serum albumin doc
Ngày tải lên :
22/02/2014, 04:20
... interpretation and modelling of Cu(II) and Ni(II) transport by albumins On the other hand, the direct thermodynamic and kinetic characterization of Ni(II) binding at site I in HSA and BSA was obtained These ... bind phosphate ions, thereby providing another level of competition for metal ion binding Kinetics of Ni(II) binding and Cu(II)/Ni(II) exchange The data presented in Table demonstrate that the ... strongly on the nonbonding substituents in positions 1, 2, and even (Table 3) Moreover, the comparison with the spectra of albumin complexes clearly indicates the inuence of the whole protein, which...
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Báo cáo khoa học: The properties of phosphodiesterase 11A4 GAF domains are regulated by modifications in its N-terminal domain pptx
Ngày tải lên :
16/03/2014, 06:20
... interesting to see whether common structural features exist in the N- termini of GAF-domain-containing PDEs that might contribute to intramolecular signalling in a similar manner Another point merits ... dealing with two independent control mechanisms In summary, the data emphasize the important role that the N- termini of those PDEs possessing an N- terminal 1648 GAF tandem domain may exert in regulation ... 221 amino acids in PDE2, 148 in PDE5, 82 in PDE10 and 196 in PDE11A4, and it is conceivable that they have a function in conjunction with the regulation of PDE activity in addition to the phosphorylations...
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Báo cáo toán học: "On the Tur´n Properties of Infinite Graphs a" pptx
Ngày tải lên :
07/08/2014, 15:23
... Proof of Theorem 1.2 We start with an outline of the proof First, we redefine the sequence B by adding k to all its terms, i.e., bn := bn + k For an even integer k we construct a new sequence C ... (4) and (5) we choose an integer r, which is a power of 2, and further subdivide the interval ni (m), , ni+1 (m) − into r disjoint intervals of the same length, i.e., r−1 ni (m), , ni+1 ... our main “tool” was the fact that for any l there are integers m ∈ N and i ∈ {0, , k − 1} such that ni (m) ≤ l < ni+1 (m), and consequently that (4) and (5) hold In order to strengthen inequalities...
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Tài liệu Psychometric properties of the quality of life scale Child Health and Illness Profile-Child Edition in a combined analysis of five atomoxetine trials pdf
Ngày tải lên :
12/02/2014, 19:20
... track changes in QoL over time The internal consistency of domains and subdomains was robust against single missing items, except for changes in the TA sub-domain and the AP subdomain Results ... domains and the total score Internal consistency (Cronbach’s alpha) Internal consistency of CHIP-CE was assessed using Cronbach’s alpha The results are shown in Table The internal consistency ... for the changes from baseline Correlations between sub-domains and domains and between domains and the total score were similar at baseline and endpoint The correlations for change from baseline...
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Tài liệu Báo cáo khoa học: The antibacterial and antifungal properties of trappin-2 (pre-elafin) do not depend on its protease inhibitory function pptx
Ngày tải lên :
18/02/2014, 17:20
... electrostatic interactions We then examined the effect of heparin on the antimicrobial 2012 Fig Western blot analysis of ela n and trappin-2 fractionated on heparin-Sepharose The heparin-binding capacities ... trappin-2 in the incubation mixtures, suggesting that another, as yet unidentified, mechanism is responsible for the observed insensitivity of K pneumoniae and H in uenzae to high trappin-2 concentrations ... part of the pulmonary innate defense system, together with a vast array of defense effector molecules, including the defensin and cathelicidin families of antimicrobial peptides Many WAPcontaining...
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Tài liệu Báo cáo khoa học: Tryptophan tryptophylquinone cofactor biogenesis in the aromatic amine dehydrogenase of Alcaligenes faecalis Cofactor assembly and catalytic properties of recombinant enzyme expressed in Paracoccus denitrificans pptx
Ngày tải lên :
19/02/2014, 07:20
... expression was similar in wildtype P denitrificans and pRKAADH containing P denitrificans Characterization of recombinant AADH During the purification of recombinant AADH, the elution conditions during ... limiting with ‘fast’ substrates The lack of inhibition observed with benzylamine (Fig 5A) in comparison to the inhibition observed with tryptamine (Fig 5B) suggests differences in binding of the ... plot of initial velocity against benzylamine concentration for recombinant AADH is shown in Fig 5A Apparent Michaelis constants were determined by fitting the Michaelis–Menten equation to initial...
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Tài liệu Báo cáo khoa học: Role of K22 and R120 in the covalent binding of the antibiotic fosfomycin and the substrate-induced conformational change in UDP-N-acetylglucosamine enol pyruvyl transferase docx
Ngày tải lên :
19/02/2014, 13:20
... fosfomycin binding due to charge–charge repulsions Most interestingly, the uncharged valine side chain completely abolishes fosfomycin binding in the absence of UDPNAG Clearly, UDPNAG binding creates ... enolpyruvyl-accepting substrate, shikimate-3-phosphate, does not interact with R124 in the ternary complex [20] Hence, the mechanism of binding of fosfomycin by reinforcement of an initial binding site (mainly ... additional favorable interactions that promote fosfomycin binding to the enzyme As shown in Fig 5, UDPNAG may exhibit a direct and/or an indirect effect on the binding environment of fosfomycin The...
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Tài liệu Báo cáo khoa học: Co-operative effect of the isoforms of type III antifreeze protein expressed in Notched-fin eelpout, Zoarces elongatus Kner ppt
Ngày tải lên :
19/02/2014, 16:20
... blue and green in Fig The sequence identity within the 13 isoforms is 48% The identity is 77% when compared within the SP isoforms, 76% within the QAE1 isoforms, and 91% within the QAE2 isoforms, ... trypsin (T1–T5) By comparing the cleaved sequences with each other, the N1 and T1 fragments were assigned to the N- terminal sequence, and N5 and T5 to the C-terminal sequence The C-terminus was ... examined using a protein sequencer, and 13 sequences were independently determined by analysis of cDNA sequences using the mRNA library constructed for the fresh liver of this fish By comparing...
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Tài liệu Báo cáo Y học: Antibacterial and antifungal properties of a-helical, cationic peptides in the venom of scorpions from southern Africa pptx
Ngày tải lên :
21/02/2014, 15:20
... scorpion venom known today We found that there is a high conservation in amino acid sequence of the peptides in the venom of scorpions belonging to the same family, independent of the continent and ... pandinin contains only one charged amino acid in this fragment Parameters that might in uence antibacterial activity that differ between opistoporin and pandinin are the hydrophobicity (pandinin ... and changing ion permeabilities, pore-forming peptides can in uence cell functioning by interacting with intracellular signaling Interaction with G-proteins has been described in different cell...
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Báo cáo " Study on the characteristics and catalytic properties of Pt/SBA-15 in the selective oxidation of D-Glucose " potx
Ngày tải lên :
05/03/2014, 11:21
... dispersed with the size under 6nm in the channels of SBA-15 and at this state, Pt/SBA-15 catalyst showed the highest activity and selectivity in the oxidation of glucose When increasing the content of ... suitability of plantinum nanoparticles in the selective oxidation of glucose When the reaction was performed without pH control on PS-1 catalyst, the conversion decreased significantly The pH at the end ... maintain pH value at during the oxidation process In table 2, we also see that increasing the Pt contents led to decrease in catalytic activity The average particle size of the catalyst with the...
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Báo cáo khoa học: Conserved residues in the N-domain of the AAA+ chaperone ClpA regulate substrate recognition and unfolding pdf
Ngày tải lên :
07/03/2014, 05:20
... three domains: an N- domain and two ATP-binding domains referred to as the D1 and D2 domains Interestingly, deletion of the N- domain from ClpA not only abolishes binding of the adaptor protein, ClpS, ... binding to the substrate via two elements in ClpA, one in the N- domain and the other in the pore of the ClpA hexamer In the case of short unstructured peptides or unfolded proteins such as casein, ... the N- domain, which in turn allows substrate unfolding to proceed Importantly, in contrast to previous studies on the N- domain of ClpA (which examined the effect of removing the entire domain...
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Báo cáo khoa học: Effect of oculopharyngeal muscular dystrophy-associated extension of seven alanines on the fibrillation properties of the N-terminal domain of PABPN1 pot
Ngày tải lên :
07/03/2014, 11:20
... conclusion was based on investigations employing mutants in which the RNA-binding domain of PABPN1 had been either deleted or inactivated by point mutations The absence of an intact RNA-binding domain ... N- and C-terminal domains An RNP-type RNA-binding domain, which lies in the middle of the protein, is preceded by an a-helical segment [13,14] The poly l-alanine extensions affect the N- terminal ... widths Longitudinal section of N- WT and N- (+7)Ala fibrils obtained using Nanoscope Section Analysis [28] Furthermore, given that even the incubation temperature can in uence the conformation and stability...
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Báo cáo khoa học: An arginyl in the N-terminus of the V1a vasopressin receptor is part of the conformational switch controlling activation by agonist docx
Ngày tải lên :
07/03/2014, 21:20
... off-state The unique ability of arginyl to fulfil this constraining function in the N- terminus of the V1aR is similar to the unique constraining role of alanyl previously reported for Ala293 in the ... subsequently stabilize the G-protein interaction of the active receptor [28] In summary, Arg46 of the V1aR is required for high affinity agonist binding and signalling It is one of the constraining ... segment of this domain is critical for high affinity agonist binding but not antagonist binding [14] The corresponding residue in the OTR is also an arginyl (Arg34) and furthermore this arginyl is...
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Báo cáo khoa học: Enzymes of mannitol metabolism in the human pathogenic fungusAspergillus fumigatus– kinetic properties of mannitol-1-phosphate 5-dehydrogenase and mannitol 2-dehydrogenase, and their physiological implications pot
Ngày tải lên :
14/03/2014, 23:20
... that binding of one reactant weakens the afnity of the enzyme for binding of the other reactant Kcoenzyme and Ksubstrate are dissociation constants for binary enzyme complexes with coenzyme and ... describing how bound A affects the binding of B In Eqn (5), KiEI is a competitive inhibition constant, and I is the molar inhibitor concentration Unless mentioned, KIEs were obtained by using Eqn ... of inhibitor The observed inhibition was, in each case, best described by competitive binding of coenzyme and adenine nucleotide Inhibition constants (KiEI) were obtained from nonlinear ts of...
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Báo cáo khoa học: Role of the structural domains in the functional properties of pancreatic lipase-related protein 2 pot
Ngày tải lên :
16/03/2014, 06:20
... the N2 proteins was independent of the nature of the C-terminal domain, in contrast to the situation with Nc proteins Indeed, the C2 domain induced sensitivity of the Nc active site to E600 inhibition ... N2 Cc In conclusion, the accessibility of the active site was better in the protein bearing the N2 domain than in the protein bearing the Nc domain Thus, the accessibility of the active site in the ... bind colipase whatever the nature of the N- terminal domain Moreover, the C-terminal domain of hoPLRP2 was not able to bind colipase even in the presence of the PL N- terminal domain In uence of...
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