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102 combinatorial problems from the training of the usa imo team download

Báo cáo y học:

Báo cáo y học: "ISOLATION OF CHLAMYDIA PNEUMONIAE FROM SERUM SAMPLES OF THE PATIENTS WITH ACUTE CORONARY SYNDROME"

Y học thưởng thức

... disputable relevance of our results to pathogenesis and clinical manifestations of atherosclerosis. The finding of C. pneumoniae in serum of ACS patients does not establish causality for the pathogen ... from the same volume of whole serum with QIAmp Blood Midi Kit (QIAGEN, Valencia, CA) according to the manual. Bacterial DNA was also extracted from the bac-terial particles trapped from the ... may originate from destructed mononuclear cells and/or macrophages residing in the atherosclerotic plaques. However regardless of the origin, we can claim that the presence of virulent chlamydial...
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Tài liệu THE ESTIMATION OF THE EFFECTIVE REPRODUCTIVE NUMBER FROM DISEASE OUTBREAK DATA pdf

Tài liệu THE ESTIMATION OF THE EFFECTIVE REPRODUCTIVE NUMBER FROM DISEASE OUTBREAK DATA pdf

Sức khỏe phụ nữ

... final part of the outbreak data, as there is often a period lasting ten or more weeks when there arefew cases.We investigated whether the removal of the lowest-valued points from the datasets ... differences between the behavior of the SIR model and the data. Potentialsources of these differences include inadequacies of the mathematical model to de-scribe the process underlying the data and ... proportional to the square of the predicted incidence: wj= 1/[z(tj; θ)]2.On the other hand, if ρ = 1/2, then the weights are proportional to the rec iprocal of the predicted incidence; these correspond...
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Tài liệu Banks’ exposure to interest rate risk, their earnings from term transformation, and the dynamics of the term structure pptx

Tài liệu Banks’ exposure to interest rate risk, their earnings from term transformation, and the dynamics of the term structure pptx

Ngân hàng - Tín dụng

... is the cross-sectional average of the bank-specific variable αi of those banks forwhich there is an observation in month t. As the composition of this sample changes in the course of time, the ... (column 3) and the model with only the regulation variables (column 4). The R2 of the full model is17.24%, i.e. the combined contribution of the systematic factor and the regulation to the total ... constantand the own funds decrease or increase.With the help of the two other specifications, it is possible to disentangle the contri-butions of the systematic factor and of the regulation....
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Tài liệu ANDRE BAZIN FROM WHAT IS CINEMA? THE ONTOLOGY OF THE PHOTOGRAPHIC IMAGE pptx

Tài liệu ANDRE BAZIN FROM WHAT IS CINEMA? THE ONTOLOGY OF THE PHOTOGRAPHIC IMAGE pptx

Sân khấu điện ảnh

... applying the optical principle of the persistence of the image on the retina, as also the continuous progress of the syntheses of movement as compared with the state of photographic techniques. The fact ... to have the last word in the ar-gument with death by means of the form that endures. If the history of the plasticarts is less a matter of their aesthetic than of their psychology then it will ... of all is the obstinateresistance of matter to ideas rather than of any help offered by techniques to the imagination of the researchers. Furthermore, the cinema owes virtually nothing to the...
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Tài liệu Báo cáo khoa học: Crystal structure of thiamindiphosphate-dependent indolepyruvate decarboxylase from Enterobacter cloacae, an enzyme involved in the biosynthesis of the plant hormone indole-3-acetic acid doc

Tài liệu Báo cáo khoa học: Crystal structure of thiamindiphosphate-dependent indolepyruvate decarboxylase from Enterobacter cloacae, an enzyme involved in the biosynthesis of the plant hormone indole-3-acetic acid doc

Báo cáo khoa học

... catalytic residues The active site cavity in IPDC extends from the thiazoliumring of the cofactor to the surface of the protein. The entrance of the active site cleft is covered by the C-terminalhelix ... on the other hand involving the C-terminal part of the polypeptide chain (Fig. 7). In the latter, differences in the conformation of the loop betweenFig. 6. Stereo picture of the model of the a-carbanion/enamine ... However, the packing of the two dimers in the tetramer is different from that of the PDCs of known structure, best described as a 20° rotation of one dimer towards the other when compared to the Z....
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Tài liệu Báo cáo khoa học: Purification and characterization of a sialic acid specific lectin from the hemolymph of the freshwater crab Paratelphusa jacquemontii pdf

Tài liệu Báo cáo khoa học: Purification and characterization of a sialic acid specific lectin from the hemolymph of the freshwater crab Paratelphusa jacquemontii pdf

Báo cáo khoa học

... NeuAc.Discussion The presence of naturally occurring agglutinins in the hemolymph of several crustaceans has been well knownsince the beginning of the 20th century [34]. An evaluation of the literature ... °C. The eluant wascollected at a rate of 0.6 mLÆmin)1.Thecolumnwaswashed with HSB until the A280 of the effluent was < 0.002. The column was further washed with LSB at 4 °C until the A280 of ... containing 100 lLof100mMCaCl2at a rate of 0.3 mLÆmin)1. The presence of calcium chloride wasrequired in the collected fractions because the lectin wasunstable in the presence of EDTA. The fractions...
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Tài liệu Báo cáo Y học: Identification of a set of genes involved in the biosynthesis of the aminonucleoside moiety of antibiotic A201A from Streptomyces capreolus pdf

Tài liệu Báo cáo Y học: Identification of a set of genes involved in the biosynthesis of the aminonucleoside moiety of antibiotic A201A from Streptomyces capreolus pdf

Báo cáo khoa học

... proteinsimplicated in the biosynthesis of the aminonucleoside moiety of A201A. Here we report the sequencing of a total of 6946 bp, which include the ata genes most likely implicatedin the biosynthesis of this ... it. Further sequencing of the atacluster could provide an insight into the biosyntheticpathway of the other moieties of A201A and provideprobes which may be useful to identify genes of the hygromycin ... in the biosynthesis of the D-rhamnose and a-p-coumaric acid moieties of A201A. Further sequencing of 2 kb of DNA downstream of ard1 has disclosed a region which might contain one end of the...
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Tài liệu Báo cáo khoa học: The structure of the carbohydrate backbone of the lipopolysaccharide from Acinetobacter baumannii strain ATCC 19606 docx

Tài liệu Báo cáo khoa học: The structure of the carbohydrate backbone of the lipopolysaccharide from Acinetobacter baumannii strain ATCC 19606 docx

Báo cáo khoa học

... 269) 427[26,27]. Then, the biosynthesis of the core region of LPS from A. baumannii strain ATCC 19606 should proceed with the introduction of a third Kdo residue to O-5 of the secondKdo. This ... mechanism of the transfer of the third Kdo residue has not yet beenidenti®ed.In addition to the work on the determination of the chemical and antigenic structures of O-speci®c polysaccha-rides from ... to a completestructure of the carbohydrate backbone of the LPS from A. baumannii strain ATCC 19606 as depicted in Fig. 4. The structures o f four core regions from LPS of d ifferentAcinetobacter...
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Tài liệu Báo cáo Y học: Steady-state kinetics of the glutaminase reaction of CTP synthase from Lactococcus lactis The role of the allosteric activator GTP in coupling between glutamine hydrolysis and CTP synthesis potx

Tài liệu Báo cáo Y học: Steady-state kinetics of the glutaminase reaction of CTP synthase from Lactococcus lactis The role of the allosteric activator GTP in coupling between glutamine hydrolysis and CTP synthesis potx

Báo cáo khoa học

... locks the enzyme in the active form for CTP synthesis andthereby stimulates the kcat of the reaction. Since GTP actually willactivate the uncoupled glutaminase reaction the structure of the monomer ... wassimilar to that of the overall CTP synthesis reaction. Itwas concluded that the effect of GTP was mainly toenhance the rate of chemical steps of the glutaminasereaction. The finding that the kcatvalue ... as the displacement of the baseline. The peaksobserved at each injection time are derived from the heat of dilution of glutamine into the reaction cell. (B) The heat generated by hydrolysisof...
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Gentle Measures in the Management and Training of the Young docx

Gentle Measures in the Management and Training of the Young docx

Sức khỏe giới tính

... over the minds of the children by means of these dolls. She fell at once into the idea of the children in regard to them, and treated them always as if theywere real persons; often speaking of them ... perseveringly followed up by the watchful efficiency of the mother. We can not substitute the action of the child for that of the parent in the work of early training, but we can often derive very greatadvantage ... a wood. Either of them led to the river. But there was a brook to cross, andfor one of these paths there was a bridge. There was none for the other. George said that they would take the former....
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Báo cáo khoa học: Exosites mediate the anti-inflammatory effects of a multifunctional serpin from the saliva of the tick Ixodes ricinus potx

Báo cáo khoa học: Exosites mediate the anti-inflammatory effects of a multifunctional serpin from the saliva of the tick Ixodes ricinus potx

Báo cáo khoa học

... Pi. The effect of these samples on cyto-kine production by PBMCs activated by LPS was thenassessed as described above.Prediction of interaction sites The prediction of binding sites from the ... amphipathicity) of the helices. The mean surface accessibility of the predicted epitopes on the Iris 3D structures was calculated by averaging the accessiblesurface area of the peptide residues using the Shrake ... meal from a variety of verte-brates, ranging from amphibians to mammals, andincluding domestic animals and humans [2]. It is the one of the vectors of Borrelia burgdorferi, the agent of Lyme...
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Báo cáo khoa học: Phaiodotoxin, a novel structural class of insect-toxin isolated from the venom of the Mexican scorpion Anuroctonus phaiodactylus pdf

Báo cáo khoa học: Phaiodotoxin, a novel structural class of insect-toxin isolated from the venom of the Mexican scorpion Anuroctonus phaiodactylus pdf

Báo cáo khoa học

... molecular mass of the native peptide wasconsistent with the oxidation of the corresponding thiolgroups, in order t o form the last missing disulfi de bridge.Furthermore, this is one of the c onstant ... shown thereafter. The first group(11 sequences) is from the a-ScTXs, t he second is from the b-ScTXs. Birtoxin is the sho rtest. The de pressant and the long-chain ex citatory are in the last two ... of the N-terminal segment with C5 of the b2 stran d [ 9]. The fourth disulfide bond is established between C1 and C8, of the N- with t he C-terminal region. The excitatory insecttoxins lack the...
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Báo cáo Y học: Ferritin from the spleen of the Antarctic teleost Trematomus bernacchii is an M-type homopolymer doc

Báo cáo Y học: Ferritin from the spleen of the Antarctic teleost Trematomus bernacchii is an M-type homopolymer doc

Báo cáo khoa học

... lower thanthat of the L -rich apoferritin of horse spleen (t1/2¼ 60 0 s)[19]. The iron-oxidation capacity is maintained byT. bernacchii apoferritin at low temperature; the rate of the reaction ... Interest-ingly, the 262 nm phenylalanine band is of opposite sign t o the protein a t pH 7.0 (Fig. 4B). The f ar-UV CD spectrum of T. bernacchii apofer ritin at pH 2.5 shows a modest blueshift of the zero ... fishferritins on the basis of the available sequences.A further distinctive property of t he fish H chains knownto date relative to those o f mammals appears to be the lack of the four-amino-acid...
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Báo cáo khoa học: The role of the Fe-S cluster in the sensory domain of nitrogenase transcriptional activator VnfA from Azotobacter vinelandii potx

Báo cáo khoa học: The role of the Fe-S cluster in the sensory domain of nitrogenase transcriptional activator VnfA from Azotobacter vinelandii potx

Báo cáo khoa học

... electronic condition of the Fe-S cluster through the protein scaffold, resultingin an alteration of the signal rhombicity of the EPRspectrum. The divergence of the g-value from that of the whole cell ... upstream of the GAF domain are the potential ligands of the Fe-S cluster. Consequently, the binding of the ATPanalog and the subsequent rearrangement of the inter-domain interaction affects the ... level of the lacZ gene immediately after the addition of o-phen to minimize the effect of the growthinhibition by o-phen on the transcriptional activity of VnfA. Figure 5 shows the time course of...
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Báo cáo khoa học: Identification and characterization of plasma kallikrein–kinin system inhibitors from salivary glands of the blood-sucking insect Triatoma infestans pptx

Báo cáo khoa học: Identification and characterization of plasma kallikrein–kinin system inhibitors from salivary glands of the blood-sucking insect Triatoma infestans pptx

Báo cáo khoa học

... APTTreagent in the absence of Ca2+. In these experiments, the kallikrein–kinin system had been activated before the addition of triafestin-1 or triafestin-2. In the absence of Ca2+, factor ... chro-mogenic substrates. Neither triafestin-1 nor triafestin-2inhibited the amidolytic activities of any of theseplasma proteins (data not shown). Therefore, we exam-ined the effects of triafestin-1 and ... HK. The fact thatthese three unrelated blood-sucking arthropods sharesuch similar bioactive substances as major components of the saliva emphasizes the biological importance of inhibition of the...
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