chemical and textural properties of the catalysts used in benzonitrile hydrogenation
Supported group II transition metal catalysts in liquid phase reactions using borrowing hydrogen methodology 1
... N-alkylation of nitroarenes using alcohols Table 6-1 Textural properties of the catalysts in the self-coupling of benzyl amines tested Table 6-2 Self-coupling of benzyl amine in the presence of different ... different catalysts Table 6-3 Self coupling of various amines Table 6-4 Reaction studies and conditions in the self-coupling of benzylamines Table 7-1 Chemical and textural properties of the catalysts ... remains in the form of an oxide During calcination, some other processes can also take place: (i) sintering of the precursor or of the oxide to form bigger aggregates, and (ii) reaction of the...
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the study common errors of reported speech made by grade 11 students at doc binh kieu high school, kien giang province
... copies of the mini-test to the 79 students of the two classes 11A9 and 11A13 and collected them 30 minutes later That is, students had to the mini-test in class under the supervision of the researcher ... 3.5: The elements that need changing in the order of ascending difficulty Figure 3.5 indicates the order of ascending difficulty of the five elements that need changing in reported speech In the ... example, the percentage of the students‟ correct answers in each of the items 13, 14, 15 and 16 is about 20% of their answers It is noteworthy that the percentage of the students‟ incorrect answers in...
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Tài liệu Báo cáo khoa học: The mechanism of a-proton isotope exchange in amino acids catalysed by tyrosine phenol-lyase doc
... formed The anchoring of a-carboxylate and a-amino group in the external aldimine defines automatically the positions of the a-proton and the side chain of any bound amino acid The lability of the ... number of amino acids [5] under the action of TPL gives evidence for the orthogonal orientation of the a-proton with respect to the cofactor plane [17], and shows that the pattern of binding is the ... group of lysine 257, which forms the aldimine bond with the carbonyl group of the cofactor, PLP, in the holoenzyme structure For the reaction of any nondeuterated substrate in D2O the amino group,...
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Tài liệu Báo cáo Y học: Phosphatidylinositol synthesis and exchange of the inositol head are catalysed by the single phosphatidylinositol synthase 1 from Arabidopsis docx
... extracted and the amount of labelled PtdIns was determined (Table 1) In the absence of CMP, the presence of AtPIS1 allows the incorporation of labelled inositol into PtdIns, according to the enzymatic ... disappearance of PtdIns in the lower phase ()108 pmolÆmin)1Æmg)1) On the other hand, membranes lacking AtPIS1 not induce any variation in the radioactivity partitioned between each phase during the incubation ... allow detectable synthesis The level of PtdIns in the membranes does not allow synthesis of detectable PtdIns by exchange of the polar head As in Fig 1D the only source of PtdIns molecular species...
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Báo cáo khoa học: Active site residue involvement in monoamine or diamine oxidation catalysed by pea seedling amine oxidase doc
... underlying the selectivity of PSAO not only affect the binding mode of the amine in the active site, but also the identity of the residues recruited in the catalytic steps In particular, the new ... bonded with the O4 of TPQ To determine the charged-state of residues involved in substrate binding or in catalytic steps, we computed the pKa of the titratable residues in the presence of the substrate ... (T) of Km, we calculated the DH and DS accompanying the binding of substrate to enzyme according to the van’t Hoff equation DH* and DS*, the enthalpy and entropy of activation accompanying the...
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Báo cáo khoa học: Kinetic deuterium isotope effects for 7-alkoxycoumarin O-dealkylation reactions catalyzed by human cytochromes P450 and in liver microsomes Rate-limiting C-H bond breaking in cytochrome P450 1A2 substrate oxidation pdf
... secondary kinetic isotope effects [19,27–29] The existence of a gem secondary kinetic isotope effect has the effect of attenuating the rate of C-H bond-breaking, so in principle the intrinsic kinetic ... The results are interpreted in the context of a rate-limiting chemical step involved in the reaction of the activated enzyme complex (Fe-O species) with the substrate, even in the most relevant ... as to whether the microsomal (and in vivo) rates are limited by reduction and other steps involved in the generation of the reactive oxygen species, as opposed to the reactions of the activated...
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Báo cáo khoa học: Cofactor-independent oxygenation reactions catalyzed by soluble methane monooxygenase at the surface of a modified gold electrode pot
... was maintained Detection of the products of substrate oxygenation by the adsorbed MMOH was achieved by holding the potential at )0.5 V for 30 in the presence of substrate and then removing the ... electric fan The effect of the substrate methane on the electrochemical properties of the MMOH/MMOB/catalase system was investigated by enclosing the electrode assembly in a PVC chamber in which ... S-transferase and prepared the recombinant truncate by the same method used for the full-length protein Like the recombinant intact MMOB [11], the recombinant MMOBtru had two additional vectorencoded amino...
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Genetic Manipulation of DNA and Protein – Examples from Current Research Edited by David Figurski potx
... by the elimination of the hydrogen bonds formed by the amino acids involved in the binding of NADP+ The position of the NADP+ in the mutant is the same as it is in the native enzyme The loop formed ... with the active site lying at its base Domain contains the residues involved in substrate binding, catalysis, and coordination of the active-site zinc Domain consists of a dinucleotide-binding ... structure (in blue) and unwinds the labeled strand If a Tus-Ter complex is present in a blocking orientation, the sliding DnaB is arrested, thereby preventing the unwinding of the blue strand; a...
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Báo cáo khoa học: NADH oxidation and NAD+ reduction catalysed by tightly coupled inside-out vesicles from Paracoccus denitrificans doc
... competitive inhibitor of the mitochondrial enzyme [24] The Ki value for competitive inhibition of the bacterial Fig Kinetics of NADH oxidation and NAD+ reduction by SPP Lineweaver–Burk plots of the initial ... competitive inhibitor of the dinucleotide-binding site of the mitochondrial enzyme [24] As in the case of mitochondrial complex I, ADP-ribose is capable of selective suppression only of the NADH-oxidase ... mM)1Æcm)1) Other details of the assays are indicated in the legends to figures RESULTS The SPP used in this work are tightly coupled Addition of gramicidin to SPP, respiring on NADH, results in an %...
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KINEMATIC GEOMETRY OF SURFACE MACHINING 2008 by Taylor & Francis Group ppt
... feeding into the rotating twist drill The combination of the rotation of the twist drill and of the translation of the worktable, which is carrying the work, results in the hole being machined in ... on the consideration of the relative motion of the work and of the cutting tool regardless of the kind of elementary absolute motions that are performing the work and the cutting tool Use of the ... determination of the generating surface of the form-cutting tool as the R-mapping of the sculptured surface to be machined Therefore, optimal parameters of the generating surface of the form-cutting...
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"Historical Dictionary of Modern Chinese Literature" by Li-hua Ying - Part 11 pdf
... characters in the context of the economic reforms since the 1970s in order to examine the conflict between agrarian society and the modern world due to rapid industrialization While the themes in these ... in the rainforest of Southeast Asia and others in metropolitan Taipei, both intersecting with the author’s sense of self-identity Most notable are his portrayals of the Chinese immigrants in ... husband of the actress, the author accentuates the contrast between the values of the city and those of the countryside and the dilemmas faced by the peasants when their traditional way of life...
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Báo cáo y học: " Inhibitor of IκB kinase activity, BAY 11-7082, interferes with interferon regulatory factor 7 nuclear translocation and type I interferon production by plasmacytoid dendritic cells" ppsx
... BAY11 targets IKKα in the inhibition of IFN-α and IKKβ in the inhibition of TNF-α at the downstream of TLR7/9-MyD88 The other two IKK-related kinases, TANK-binding kinase (TBK1) and IKKτ (also called ... difference in the rate of viable cells up to 10-7 M of BAY11 (Figure 7B) Based on these in vitro findings, we next analyzed the serum IFN-α level at several time points after the injection of poly U in ... colocalization of IRF7 and DAPI staining was prevented by the presence of 10-8 M and 10-7 M of BAY11 (Figure 5A) Thus, BAY11 helped retain IRF7 in the cytoplasm, indicating an inhibitory effect of IRF7 nuclear...
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Group 10 and group 11 transition metal chemistry of benzimidazolin 2 ylidene and indazolin 3 ylidene ligands
... Evaluation of donor strength of indazolin-3-ylidene ligands 72 81 Palladium and gold complexes of fused indazolin-3-ylidene ligands 90 6.1 Synthesis of ligand precursors 90 6.2 Synthesis of Pd(II) ... reports the synthesis, reactivity and catalytic studies of transition metal complexes (mainly Ni, Pd and Au) bearing benzimidazolin-2-ylidene and indazolin-3-ylidene ligands The findings of the research ... Furthermore, the studies on -donor properties of the new indazolin-3-ylidene ligands were also carried out Chapter deals with the synthesis of Pd(II) and Au(I) complexes bearing fused indazolin-3-ylidene...
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Development of direct asymmetric aldol reactions mediated by primary amino acid derived organocatalysts exploring DNA cleaving activities of varacin b and varacin c
... enamine catalysis In addition, the presence of an extra N–H in the enamine b’ intermediate derived from the primary amino group may facilitate the control of the enamine structure, and direct the ... organocatalysts containing the pyrrolidine core that were widely used in either enamine catalysis or iminium activation However, the use of primary amino acid-mediated enamine catalysis is rather infrequent ... 32 Scheme 2-3 The main aldol products obtained in Table 2-5 and Table 2-6 45 - xiii - PhD Thesis Jiang Zhaoqin Scheme 2-4 Balance of imine and enamine 58 Scheme 3-1 Catalysts used in our study...
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Synthesis and characterization of group 11, 12 and 13 metal selenocarboxylates potential single molecular precursors for metal selenide nanocrystals 3
... Characterization of AgInSe2 NRs An XRPD pattern of the synthesized AgInSe2 NRs and the bulk AgInSe2 (synthesized by pyrolyzing the precursor in a vacuum) is shown in Figure 9.6 The broadening of the diffraction ... patterns of ZnSe and CdSe NPs Figure 8.10 SAED of (a) ZnSe and (b) CdSe The TEM images of ZnSe and CdSe NPs isolated after of heating are shown in Figure 8.11 and 8.12 The size of the ZnSe and CdSe ... pattern of the corresponding AgInSe2 Peaks labeled in * correspond to the tetragonal phase AgInSe2 The FTIR and EDX spectra of the AgInSe2 NRs are shown in Figure 9.3 and 9.4 Based on the IR spectral...
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Synthesis and characterization of group 11, 12 and 13 metal selenocarboxylates potential single molecular precursors for metal selenide nanocrystals 1
... thiobenzoates The size and coordinating ability of the solvents play a role in these systems during and/ or nucleation The solvent CH2Cl2 being smaller in size with more coordinating ability, keeps the ... in the solid-state by the use of appropriate counter ions Further these compounds thermally decompose to the corresponding metal sulfides in the solid-state and the inception temperature of the ... atom.1, and normally exist either in the form of acid or alkali-metal salt Historically, the synthesis of thiocarboxylic acid was first reported by Kekulé in 1854.3 Since then, the synthesis and properties...
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Synthesis and characterization of group 11, 12 and 13 metal selenocarboxylates potential single molecular precursors for metal selenide nanocrystals 2
... uniformity of the size, shape, composition, crystal structure and surface properties of the NCs is vital in the process of uncovering the intrinsic properties of the NPs Many of the reported syntheses ... 6.1c) indicate good crystallinity of the particles There is no drastic change in the morphology and only a slight change in the size of the particles when we increased the amount of HDA under the ... being formed at high temperatures because in the single injection synthesis, an increase in the nucleic concentration always caused the reduction in the size of the NP.74 No drastic change on the...
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SEVERAL THESES ON THE SUBJECT OF INTERCULTURAL THEATRE SUPPLEMENTED BY SEVERAL KEY EXAMPLES THAT INCLUDE STATIONARY WRITERS, TRANSLATIONS, TRAVELLERS ON FOOT, HORSES, OR VESSELS, AND SEARCH ENGINES
... both sides of the coin, balancing controversies, discourses and stands without taking a definite stand; and that is its stand It is then the practice of writing of a Gegenwart, against the illusionary ... convincingly and not be able to resist doing it And this often involves writing and reading back, interpreting the presentation Whether I like it or not, in writing any thesis, I am given the ... texts on interculturalism and Intercultural Theatre, however, illustrate the problems of defining what Intercultural Theatre is or means The thesis next places the field in the context of the history...
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Tìm thêm: xác định các nguyên tắc biên soạn khảo sát chương trình đào tạo gắn với các giáo trình cụ thể xác định thời lượng học về mặt lí thuyết và thực tế tiến hành xây dựng chương trình đào tạo dành cho đối tượng không chuyên ngữ tại việt nam điều tra đối với đối tượng giảng viên và đối tượng quản lí điều tra với đối tượng sinh viên học tiếng nhật không chuyên ngữ1 khảo sát thực tế giảng dạy tiếng nhật không chuyên ngữ tại việt nam khảo sát các chương trình đào tạo theo những bộ giáo trình tiêu biểu mở máy động cơ lồng sóc mở máy động cơ rôto dây quấn các đặc tính của động cơ điện không đồng bộ hệ số công suất cosp fi p2 đặc tuyến hiệu suất h fi p2 đặc tuyến mômen quay m fi p2 đặc tuyến tốc độ rôto n fi p2 đặc tuyến dòng điện stato i1 fi p2 động cơ điện không đồng bộ một pha thông tin liên lạc và các dịch vụ từ bảng 3 1 ta thấy ngoài hai thành phần chủ yếu và chiếm tỷ lệ cao nhất là tinh bột và cacbonhydrat trong hạt gạo tẻ còn chứa đường cellulose hemicellulose chỉ tiêu chất lượng 9 tr 25