Báo cáo khoa học: "Biology and ecology of Elatophilus nigricornis Zetterstedt (Hemiptera Anthocoridae) predator of Matsucoccus feytaudi Ducasse (Homoptera Matsucoccidae) in the South-East of France" pot

... the beginning of March onwards,coincides with the appearance of the adults and the lay-ing of the pine scale which extends from the end of February / beginning of March to mid-April / end of May, ... a hypothesis con-cerning the behaviour of the laying females. Accordingto this hypothesis, after being fertilised in the deepcracks of the trunk, they make their way to the needlesvia the ... – The pine scale Matsucoccus feytaudi was accidentally introduced into the maritime pine stands of the Maure and EstérelForests. It is the primary cause of the dieback of 120000 ha stands and...

Báo cáo khoa học: "GRAMMIATICAL AND UNGRAMMATICAL STRUCTURE SINUSER - ADVISER DIALOGUES1 EVIDENCE FOR SUFFICIENCY OF RESTRICTED LANGUAGE SINNATURAL LANGUAGE INTERFACES TO ADVISORY SYSTEMS." potx

... define a core grammar portable to most user-advising situations, irrespec- tive of the domain. On the other hand, the complexity of referring expressions and the degree of completeness and ... from the users of avoiding certain types of un- grammaticalities. On the other hand, knowing the nature and frequency of the actual ungrammaticaiities produced by users, as they are provided ... constrains the usability of natural language interfaces as interfaces to advisory systems. One needs to identify the conditions under which the benefits of obtaining help outweight the costs of...

Báo cáo khoa học: cGMP and glutathione-conjugate transport in human erythrocytes The roles of the multidrug resistance-associated proteins, MRP1, MRP4 and MRP5 pot

... substrates, including vincristine, requireGSH for their transport and that vincristine inhibits the high afﬁnity DNP-SG transport in the presence but not in the absence of GSH [12,45,46]. Thus the effect ... Unoninh; 1 ¼ ni¼ 2 ð3Þwhere I is the concentration of the inhibitor, IC50is the inhibitor concentration producing 50% inhibition of the inhibitable component, U0is the uptake in the absence ... 1A). Uptake of [3H]cGMP in the absence of ATP but in the presence of the nonhydrolysableATP analogue, ATP-c-S, was less than 5% of the uptake in the presence of ATP. The amount of [3H]cGMP...

Báo cáo khoa học: "Immunomodulatory and antitumor effects in vivo by the cytoplasmic fraction of Lactobacillus casei and Bifidobacterium longum" pot

... Bifidobacterium, immunopheno-typing, in vivo, survival rateIntroduction The enhancement of the gut mucosal barrier may prevent the invasion of pathogens and assist in handling antigens.Lactic acid ... wasshown in Table 4.Change of body weight in F9-bearing miceDuring administration of cytoplasmic fraction of LABsfor 4 wks, F9 was inoculated into mice at 2 wks. Though the body weight of mice ... with the intraperitoneal injection of L.casei [28]. Furthermore, MHC class II+ cells and NK cellswere increased with long-term feeding of LABs, and thiscan be one of factors for the improved...

Tài liệu Báo cáo khoa học: Applications and trends in systems biology in biochemistry docx

... acid,argininecatabolismto NO and polyaminesNG, aortaendothelialcellsLow affinity transporter and arginaseshare the control of the fluxesthrough the pathways involvingarginine as a precurser of nitricoxide and polyaminesODE ... computationalmodeling. Here, computational modeling does notrefer to statistical models or models of data miningbut rather to a mathematical or ’virtual’ representation of the living system of interest in the ... sapiens,neutrophilgranulocytes The role of the NADPH oxidase in promoting oscillations wasconfirmed. The model predicted anincrease in the amplitude of NADPHoscillations in the presence of melatonin, which was...

Tài liệu Báo cáo khoa học: Structure and function of active chromatin and DNase I hypersensitive sites pdf

... relievessilencing [110]. PARP-1 binds to chromatin by engag-ing each of the two strands of DNA at the point atwhich they exit from the nucleosome, thereby opposing the actions of transcriptional ... to promote GATA-1 binding tochromatin [244]. In some cases there is a clear hierar-chy in binding. Steroid receptors can bind to nucleo-somes and promote the binding of other factors suchas ... varia-tion and complexity in the number of nucleosomes dis-rupted, the histone composition of the remainingnucleosomes, and the number and nature of proteincomplexes they interact with.Much has...

Tài liệu Báo cáo khoa học: miRNAs and regulation of cell signaling pptx

... repressing the indicated targets and presumably hundreds of other as yetunidentiﬁed targets. (B) miR-34a and the miR-34a-binding site in the 3¢ UTR of genes shown in (A).miRNAs and cell signaling ... fac-tor induced the expression of miR-221 and miR-222 in PC12 cells, and that this induction is dependent onsustained activation of the ERK1 ⁄ 2 pathway [20].Furthermore, the induction of miR-34a ... signaling pathways. Many miRNAs are inducedby the action of conserved signaling pathways but, in turn, the induced miRNAs regulate these pathways byrepressing the expression of components of the...

Tài liệu Báo cáo khoa học: Functional and structural analyses of N-acylsulfonamidelinked dinucleoside inhibitors of RNase A ppt

... the Kmvalues is attributable to the uracil moiety binding in the same fashion [38], which could trigger the initialbinding of both substrates. In UpG, the binding of the guanine moiety is deterred by ... studies of the structure and binding sites of enzymes. 8. Inhibitor binding toribonucleases. J Mol Biol 45, 491–511.33 Ui N (1971) Isoelectric points and conformation of proteins. I. Effect of urea ... did the phosphoryl groups in analo-gous complexes. These data encourage the further development and use of N-acylsulfonamides and sulfonimides as antagonists of nucleic acid-bindingproteins.DatabaseStructural...

Tài liệu Báo cáo khoa học: Active and regulatory sites of cytosolic 5¢-nucleotidase doc

... [1]. The transfer of phosphate can lead to phosphorylation of inosine,guanosine and a number of their analogues [2]. There-fore, in addition to being involved in regulation of purine intracellular ... 2Study of cN-II crystallized in the presence of adeno-sine indicates that this nucleoside binds to this site,even though only the amino acid residues involved in the binding of the purine base ... sites 1 and 2 and involved in bind-ing of adenylic nucleotides and BPG.Our results partially conﬁrm the molecular model-ling, suggesting that effector site 1 is the binding sitefor Ap4A and...

Tài liệu Báo cáo khoa học: Structural and functional studies of the human phosphoribosyltransferase domain containing protein 1 docx

... activity of PRTFDC1towards hypoxanthine and guanine is only 0.26% and 0.09%, respectively, of the activity of HPRT, the role of the PRTFDC1 in purine metabolism remainsunclear and it is uncertain ... side chain of Lys173 interacts with bothO6 and N7 (Fig. 1C). The 2¢OH of the ribose is hydro-gen bonded to the main chain and the side chain of Asp142 (Fig. 1C). Both hydroxyl groups of the riboseare ... and hypoxanthine. (B) HPRT and hypoxanthine. (C) PRTFDC1 and guanine. (D) HPRT and guanine.Table 2. Km and Vmaxvalues for Hx and G in the presence of 1 mM PRPP, determined using the DE-81 ﬁlter...

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