Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx

Tài liệu Báo cáo khoa học: "Names and Similarities on the Web: Fact Extraction in the Fast Lane" ppt

... separately for the beginning of the ﬁrst (left) and end of the sec-ond (right) phrases of the candidate fact. For gen-erality, the computation relies only on the part- of- speech tags of the current ... distinguish the quality of extractionpatterns based, for instance, only on the percent-age of the seed set that they extract. The secondreason is the noisy nature of the Web. A substan-tial number of ... consecutiveoccurrences of the part -of- speech tag Pi. The se-quence [P1P2 Pn] must be exactly the sequence of part of speech tags from the right side of one of the seed facts. The point where the sequence...

Tài liệu Báo cáo "Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition " pptx

... Journal of Science, Mathematics - Physics 25 (2009) 1-7 1 Effect of the preparation conditions on the properties of Fe-Pt nanoparticles produced by sonoelectrodeposition Nguyen Hoang Luong* ... remove the particles from the Ti cathode. The composition of Fe-Pt particles can be controlled by changing the concentration of Fe and Pt ions in the electrolyte and the deposition voltage. The ... and discussion The chemical composition of the Fe-Pt nanoparticles was controlled by adjusting the current density (corresponding to the applied voltage). When the current density of 15 – 20...

Tài liệu Báo cáo " Effect of Sweet potato (Ipomoea batatas (L.) Lam) leaf extract on hypoglycaemia, blood insulin secretion, and key carbohydrate metabolic enzymes in expermentally obese and STZ-induced diabetic mice " pptx

... anti-oxidant [2,3]. Flavonoid is considered to be one of main bioactive components of Ipomoea batatas leaf [3]. In the world, there some studies on bioactive components and the effects of natural compound ... pH 4.5). Control lots of ( ND and HFD mice) were injected with the citrate buffer alone. 72 hours after STZ injection, the blood fasting glucose of all the mice was monitored. Only STZ-treated ... secretion was proven. Especially, insulin secretion stimulating effect of the EtOAc fraction was 25.74%, higher as compared to other fractions. 3.4. Effect of ethyl acetate fraction on lipid...

Tài liệu Báo cáo khoa học: An alternative isomerohydrolase in the retinal Muller cells of a cone-dominant species doc

... thetase to esterify the 13cROL generated in the reac-tion. Therefore, 13cROL is accumulated in the absence of LRAT in the reaction (Fig. S3B).Under the in vitro assay conditions of the ... that the enzy-matic activity of RPE65c is iron-dependent.Characterization of the kinetic parameters of the enzymatic activity of zebraﬁsh RPE65cTo determine the steady-state kinetics of the ... (Fig. 5A). Therefore, all of furtherexperiments in the present study were conductedwithin this range. Second, to establish the dependence of 11cROL and 13cROL production on the level of RPE65c...

Tài liệu Báo cáo khoa học: X-ray crystallographic and NMR studies of pantothenate synthetase provide insights into the mechanism of homotropic inhibition by pantoate docx

... inhibition by panto-ate and the alleviation of this inhibition by high con-centrations of ATP.DiscussionPSs from all known sources are dimeric, although the contribution of this dimerization to the ... [13].Details of the structural basis for the biochemicallyobserved inhibition of plant PS by pantoate, as well as of the alleviation of this inhibition by another sub-strate of the enzyme, ATP, ... back to the resonanceposition observed for the free form of the protein. The observed changes in resonance positions in the HSQCspectrum upon addition of pantoate followed by ATPcan be reconciled...

Tài liệu Báo cáo khoa học: Steﬁn A displaces the occluding loop of cathepsin B only by as much as required to bind to the active site cleft doc

... additional hydrogenbond formed between the amide hydrogen of L73 and the side chain carbonyl of E109. A layer of solventmolecules mediates the contacts between the C-termi-nal part of the second ... adopt a variety of con-formations, whereas the rest of the structure of cathep-sin B appears to be rigid.A comparison of the interaction constants of the binding of chagasin (Ki= 0.93 nm [25]) ... and cathepsin B G24 carbonyl. The binding of this loop is further stabilized by a hydrogen bondbetween the steﬁn A N52 side chain amide and the cathepsin B S25 carbonyl group. The second binding...

Tài liệu Báo cáo khoa học: Activation loop 3 and the 170 loop interact in the active conformation of coagulation factor VIIa pdf

... two of the components of the invisible scaffold supporting the active conformation. One bond participates in stabil-ization of the 170 loop while the other connects activa-tion loops 2 and ... Lys341(192)–Gly342(193) peptide bond, which constitutes part of the oxyanion hole and the rim of the S1 pocket, mayrotate 180 °C depending on the type of inhibitorbound. Similarly, rotation of the Ser363(214)–Trp364(215) ... included in the pub-lished alanine scanning mutagenesis study of FVIIa[13], and investigated the effects of the mutation on the enzymatic maturation of FVIIa and on the response of FVIIa to...

Tài liệu Báo cáo khoa học: Osmosensing and signaling in the regulation of mammalian cell function docx

... depends on a ROS-mediated tyrosinephosphorylation of the epidermal growth factor(EGF)-receptor, the association of CD95 with the EGF-receptor, and phosphorylation of CD95 on Tyr232 and Tyr291 by the ... August2007)doi:10.1111/j.1742-4658.2007.06100.xVolume changes of mammalian cells as induced by either anisoosmolarityor under isoosmotic conditions by hormones, substrates and oxidativestress critically contribute to the regulation of metabolism, ... downstream of the ROS production triggered by endosomal acidiﬁcation mentioned above [15,38]. Hyp-erosmotic CD95 activation includes trafﬁcking of the CD95 from inside the hepatocyte to the plasma...

Tài liệu Báo cáo khoa học: Branched N-glycans regulate the biological functions of integrins and cadherins doc

... that the degree of cellular adhesion to the ECM substrateis a critical factor in the regulation of the cell migra-tion rate [59]. Conversely, deletion of GnT-V modiﬁ-cation in mouse embryonic ... integrin conformation andbiological function. For example, only N-glycanslocated on either the b-propeller of a5[55] or the I-likedomain of b1or b3[68] contribute to the regulation of integrin ... of integrin function. Therefore, we speculate that modiﬁ-cation of particular sites, which are involved in regula-tion of the conformation of integrin, determine the extent of cell migration. The mutual...

Tài liệu Báo cáo khoa học: Chemical approaches to mapping the function of post-translational modiﬁcations ppt

... a novel thionation reaction for the direct conversion of prenyl alcohols to the corre-sponding thiol, thereby allowing direct compatibilitywith selenenylsulﬁde protein conjugation (D. P. Gam-blin, ... manuscript in preparation) . These preliminary results not only repre-sent the ﬁrst examples of site-selective protein lipida-tion, but also demonstrate the dramatic effect of prenylation upon the physical ... optimized conditions, both allow complete conversion in a matter of hours.As a demonstration of the biological relevance, thismethodology was used to model the P-selectin-bindingdomain of the mucin-like...

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