نتایج جستجو برای: h14
تعداد نتایج: 178 فیلتر نتایج به سال:
[1و2و4] تری آزولو[3و4-b][1و3و4] تیادی آزین ها و [1و2و4] تری آزینو[3و4-b] [1و3و4] تیادی آزین ها دسته ای از ترکیبات هتروسیکل هستند که گستره وسیعی از خواص فارماکولوژیکی و واکنشهای شیمیایی از خود نشان می دهند. این ترکیبات دارای خواص ضد میکروبی، ضد التهابی، ضد ویروسی،ضد تومور، ضد قارچی و همچنین ضد افسردگی هستند. در این تحقیق امکان سنتز مشتقات تری آزولوتیادی آزین ها با استفاده از کاتالیستهای هتروپلی...
Cyberattack prevention factors have a significant impact on the perception of social and moral values in business context. Despite leaders’ role encouraging enculturating cybersecurity practices their organizations, there is noticeable gap literature to highlight empirically how leaders top management organizations foster organizational cybersecurity. Therefore, this study aims explore leadersh...
Migratory waterfowl of the world are the natural reservoirs of influenza viruses of all known subtypes. However, it is unknown whether these waterfowl perpetuate highly pathogenic (HP) H5 and H7 avian influenza viruses. Here we report influenza virus surveillance from 2001 to 2006 in wild ducks in Alberta, Canada, and in shorebirds and gulls at Delaware Bay (New Jersey), United States, and exam...
The largest subunit of RNA polymerase II contains a unique C-terminal domain (CTD) consisting of tandem repeats of the consensus heptapeptide sequence Tyr1-Ser2-Pro3-Thr4-Ser5-Pro6-Ser7. Two forms of the largest subunit can be separated by SDS-polyacrylamide gel electrophoresis. The faster migrating form termed IIA contains little or no phosphate on the CTD, whereas the slower migrating II0 for...
Seventy-four E. coli strains isolated from piglets with diarrhea or edema disease in Spain were serotyped and examined for production of heat-labile (LT) and heat-stable (ST) enterotoxins (LT-I, LT-II, STaH, STaP, and STb) and verotoxins (VT1, VT2, and VT2v = VTe) by phenotypic (Vero cell assay and infant mouse test) and genotypic (colony hybridization and PCR) methods. In general, an excellent...
Background: The cool-season grain legume chickpea (Cicer arietinum L.) crop is sensitive to salt stress. Especially, NaCl inhibits both the rate and extent of seed germination plant establishment. Methods: 20 Desi genotypes were investigated under different levels stress (0, 4, 6, 8, 10 dS/m) at seedling stage with three replications during Rabi 2020-21. Observations recorded 15 30 DAS (Days af...
Abstract The striving for energy savings by lightweight construction requires the combination of different materials with advantageous properties. For joining sheet metal components, clinching offers a good alternative to thermal processes. In contrast processes, microstructure in zone remains largely unaffected. Conventional clinch joints, however, have protrusion on underside joint, which res...
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