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explain the role of art music and dance in african society

Báo cáo khoa học: The role of residues R97 and Y331 in modulating the pH optimum of an insect b-glycosidase of family 1 pdf

Báo cáo khoa học: The role of residues R97 and Y331 in modulating the pH optimum of an insect b-glycosidase of family 1 pdf

Báo cáo khoa học

... resultfrom the modifications in the interactions between the catalytic glutamates and the residues R97 and Y331,indicating that these residues play a role in the modulation of the Sfbgly50 pH optimum.Sequence ... mMBicine buffer 7.0–8.5). The pH stability of Sfbgly50 was checked by incubation in the same buffers for a time equal to the assay time and thendetermining the activity remaining at the optimum ... [10,12].Nevertheless, it is not possible to assume that the same isoccurring in the mutant R97M, because there is no data on the interactions between the substrate and the arginineresidue.Finally, another...
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Tài liệu Báo cáo khoa học: Structural effects of a dimer interface mutation on catalytic activity of triosephosphate isomerase The role of conserved residues and complementary mutations pptx

Tài liệu Báo cáo khoa học: Structural effects of a dimer interface mutation on catalytic activity of triosephosphate isomerase The role of conserved residues and complementary mutations pptx

Báo cáo khoa học

... only criticalfor the stability of the dimer, it may also be involved in maintaining the integrity of the active site. These resultsclearly suggest that the dimer interface in the Y74W*mutant ... bond with the backbone CO of F102. Fur-thermore, the orientation of the side chain of the tworesidues brings the guanidinium plane and the aro-matic ring of F102 into close proximity, with ... elevated temperature and in the presence of denaturants [27].Extending these studies, we examine here the effect of increasing the bulk of the residue at position 74.Surprisingly, the Y74W mutant...
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Báo cáo khoa học: The role of helix 8 and of the cytosolic C-termini in the internalization and signal transduction of B1 and B2 bradykinin receptors potx

Báo cáo khoa học: The role of helix 8 and of the cytosolic C-termini in the internalization and signal transduction of B1 and B2 bradykinin receptors potx

Báo cáo khoa học

... by the amount of internalized agonist[20]. As the internalization is expressed in percentage of total binding, decreasing the binding affinity of the Role of helix 8 and C-termini in bradykinin ... FEBS The role of helix 8 and of the cytosolic C-termini in the internalization and signal transduction of B1 and B2bradykinin receptorsAlexander Faussner1, Alexandra Bauer1, Irina Kalatskaya1, ... particular the part com-prising putative helix 8, may be involved in the inter-action of GPCRs with cognate G proteins.Synthetic peptides from the C-terminus of the Gasubunit Gt and of the Gc...
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Báo cáo khoa học: Use of lithium and SB-415286 to explore the role of glycogen synthase kinase-3 in the regulation of glucose transport and glycogen synthase pdf

Báo cáo khoa học: Use of lithium and SB-415286 to explore the role of glycogen synthase kinase-3 in the regulation of glucose transport and glycogen synthase pdf

Báo cáo khoa học

... of GSK3 (using Li or SB-415286)appears to be sufficient for inducing activation of GS in muscle and fat cells, and that inhibition of the kinasepotentiates insulin action in muscle of insulin-resistant ... < 0.05.Results and discussionEffects of insulin, Li and SB-415286 on GSK3 activityAs an initial starting point for our studies we investigated the effects of insulin, Li and the maleimide, ... phosphatidylinositol3-kinase, p70, S6 kinase and glycogen synthase kinase-3 activity in L6 muscle cells: evidence for the involvement of the mammaliantarget of rapamycin (mTOR) pathway in the L-leucine-inducedup-regulation...
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Báo cáo Y học: The role of hydrophobic active-site residues in substrate specificity and acyl transfer activity of penicillin acylase pdf

Báo cáo Y học: The role of hydrophobic active-site residues in substrate specificity and acyl transfer activity of penicillin acylase pdf

Báo cáo khoa học

... phenylalanine was thereforemutated to Ala, Leu, Trp or Tyr. These mutations may in uence the shape and volume of the acyl binding pocket and thereby alter the binding mode and affinity of the enzyme ... PAA and derivatives thereof, while maintaining the hydrophobicity of the binding site.To test the effect of the mutations on the specificity forphenylacetylated substrates, the steady-state kinetic ... kcatrepresents the rate of acylation and Kmequals the binding constant of the substrate to the free enzyme. The results then indicateÓ FEBS 2002 Role of active-site phenylalanines in penicillin acylase...
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PHYSICAL TECHNIQUES IN THE STUDY OF ART, ARCHAEOLOGY AND CULTURAL HERITAGE VOLUME 1 pdf

PHYSICAL TECHNIQUES IN THE STUDY OF ART, ARCHAEOLOGY AND CULTURAL HERITAGE VOLUME 1 pdf

Vật lý

... founded in 1997 with the main objective of promoting research and educa-tion in the field of cultural heritage, based on the directions and recommendations given in the Professional Guidelines of the ... and of the paint layer, the characteristic“touche” of the author, the eventual existence of an underlying painting, the pentimenti, the alterations, the restorations, the modifications of frame, ... collaborate with the network. The main characteristics of these institutions, together with a database on the techniquesused and the cultural areas in which they are working are mentioned in the websitehttp://www.chim.unipg.it/chimgen/LabS...
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A Different Story of the History of Western Music and the Aesthetic Project pdf

A Different Story of the History of Western Music and the Aesthetic Project pdf

Chụp ảnh - Quay phim

... considered art music to be the happy middle point – dieglückliche Mitte – in the strivings of man.8 Art music as both an object and a means of solace thus held a key role in the cultural upbringing of ... analyses and disguise their value judgments as objective aesthetic opinions.V. aestheticI, aestheticII, aestheticIII, and . In the beginning of the 20th century, in the course of this process, the ... start with the latter, during the last half of the eighteenth century taking part in cultural societies of different kinds became increasingly popular. A new literate and musically inclined bourgeoisie...
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Báo cáo khoa học: Dissecting the role of protein–protein and protein–nucleic acid interactions in MS2 bacteriophage stability potx

Báo cáo khoa học: Dissecting the role of protein–protein and protein–nucleic acid interactions in MS2 bacteriophage stability potx

Báo cáo khoa học

... unsure of the mechanism of DNA-induced stabilization of the protein, and whe-ther it is related to the normal RNA-binding function of coat protein, as RNA binding had no effect. The increased ... understood, and we have investigated thesequestions in this work. We sought to determine the role of protein–RNA and protein–protein interactions in virus stability, measuring the effects of urea,GdnHCl ... play a role in the different behavior. In the natural virion, apart of the maturase protein is present on the innersurface of the capsid shell where it interacts with viralRNA. Another part must...
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the role of labour mobility and informal networks for knowledge transfer

the role of labour mobility and informal networks for knowledge transfer

Đại cương

... analyzing the determinants of venture capital investment in the United States between 1986 and 1998, they find that the likelihood of a ven-ture capitalist investing in a given target declines ... of industrial clustering. The organizations of the first economy, either because of their charter to doresearch as in the case of universities and R&D laboratories, or as a by-product of ... actual businessoutsourcing to India. The study accounts for the impact of cultural factors onknowledge transfer and on the likelihood to start a software firm, finding the software industry...
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Báo cáo hóa học:

Báo cáo hóa học: " The role of feed-forward and feedback processes for closed-loop prosthesis control" doc

Hóa học - Dầu khí

... people act in anticipation of their actions in the absence of ext ernally-a rising cues. The formation and maintenance of internal models hasbeen studied in healthy individuals (reviewed in [17]),but ... important step in understanding the human-machine interface.By manipulating feedforward and feedback uncertaintywe have shown that the seemingly trivial task of grasp-ing and lifting objects ... (left) and second (right) phases of training. Subjects performed significantly worse in the absence of eithersource of feedback.Saunders and Vijayakumar Journal of NeuroEngineering and Rehabilitation...
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báo cáo hóa học:

báo cáo hóa học:" The role of FGF-2 and BMP-2 in regulation of gene induction, cell proliferation and mineralization" pptx

Hóa học - Dầu khí

... BMP-2, the yin and yang of mineralization:Contrast of effect of 24 hours of treatment with FGF-2 or BMP-2 on fold increase in abundance of mineralization-related geneexpression. Mineralizing ... visualized the mineralizingcells with 2% Alizarin Red. After rinsing in distilledwater and air drying the samples, we mounted the cov-erslips on microscope slides using Fluoromount and examined and ... reduce the relativeabundance of a majority of the mineralizing-associatedgenes.ThedramaticreductionofIGF-1byFGF-2sug-gests a role for IGF-1 in minera lization, this is i n agree-ment with findings...
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báo cáo hóa học:

báo cáo hóa học:" The role of FGF-2 and BMP-2 in regulation of gene induction, cell proliferation and mineralization" pdf

Hóa học - Dầu khí

... Li4AbstractIntroduction: The difficulty in re-growing and mineralizing new bone after severe fracture can result in loss of ambulation or limb. Here we describe the sequential roles of FGF-2 in inducing ... visualized the mineralizingcells with 2% Alizarin Red. After rinsing in distilledwater and air drying the samples, we mounted the cov-erslips on microscope slides using Fluoromount and examined and ... BMP-2, the yin and yang of mineralization:Contrast of effect of 24 hours of treatment with FGF-2 or BMP-2 on fold increase in abundance of mineralization-related geneexpression. Mineralizing...
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