نتایج جستجو برای: کاتالیزور mcm
تعداد نتایج: 5625 فیلتر نتایج به سال:
برخی از آلاینده های آب و پساب با استفاده از روش های معمول و سنتی تصفیه از بین نمی روند؛ لذا استفاده از روش های نوین با کارایی بالاتر و هم سویی بیشتر با محیط زیست، مورد توجه محققان قرار گرفته است. هدف اصلی این پژوهش، بررسی کارایی حذف فنل از آب با استفاده از مواد کریستالی موبیل mcm-41)) عامل دار ti-mcm-41، fe-mcm-41،mcm-sic3h6nh2 و mo-mcm-41 و ماده mcm-41 بدون عامل کلسینه شده و نشده بود. در این ...
Prostate cancer is one of the most frequent cancers among men in the United States. In the current study, we examined the susceptibility of the human LNCaP prostate cancer cells to the apoptotic effect of marina crystal minerals (MCM), a crystallized mixture of minerals and trace elements from sea water, in vitro. Cancer cells were cultured with MCM at different concentrations (0-1000 microg/ml...
The catalytic performance of incorporated V-MCM-41 catalysts for the partial direct oxidation of methane to formaldehyde with molecular oxygen has been investigated. V-MCM-41 catalysts containing 0.56–1.86 wt.% V have been prepared by incorporating the vanadium ions into the framework of mesoporous siliceous MCM-41, resulting in a highly ordered structure with large BET surface area and high su...
BACKGROUND Minichromosome maintenance proteins (MCM), due to their involvement in DNA replication in the course of mitosis, may provide sensitive markers of cell proliferation. Localization of MCM-3 and the extent of its expression were evaluated in mammary adenocarcinomas and soft tissue fibrosarcomas in dogs. The obtained results were compared to grades of malignancy (G) of the studied tumour...
In eukaryotic cells, MCM, the minichromosome maintenance proteins, form a heterohexamer during G(1) phase in the cell cycle and constitute a DNA helicase activity at the onset of replication. MCM proteins are downregulated and dissociated from chromatin when cells exit the cell cycle. MCM proteins are upregulated frequently in a variety of dysplastic and cancer cells. To delineate the role of M...
De novo replication of the influenza virus RNA genome is regulated by DNA replicative helicase, MCM.
By dissecting and reconstituting a cell-free influenza virus genome replication system, we have purified and identified the minichromosome maintenance (MCM) complex, which is thought to be a DNA replicative helicase, as one of the host factors that regulate the virus genome replication. MCM interacted with the PA subunit of the viral RNA-dependent RNA polymerase that is found to be involved in ...
Cytomegaloviruses (CMV) are highly species-specific due to millennia of co-evolution and adaptation to their host, with no successful experimental cross-species infection in primates reported to date. Accordingly, full genome phylogenetic analysis of multiple new CMV field isolates derived from two closely related nonhuman primate species, Indian-origin rhesus macaques (RM) and Mauritian-origin...
manganese (?) complex with 2, 2? bipyridine, 1, 1? dioxide (bpdo) ligand was immobilized within nanoreactors of mcm-41. the immobilized complex was characterized by powder x-ray diffraction (xrd), nitrogen adsorption desorption, and ftir. the pore volume, surface area and pore diameter of mcm-41 decreased after immobilization of mn complex. three bands observed at 1250, 1220 cm?1 and 757 cm?1 a...
vo2+ and its complexes with ethylenediamine (en), acetylacetonate (acac), 2, 2’-bipyridine(bpy) ligands, immobilized within nanoreactors of al-mcm-41 designated as vo2+/al-mcm-41 or vol2/al-mcm-41, were prepared and characterized by x-ray powder diffraction (xrd), ft-ir, bet nitrogen adsorption-desorption and chemical analysis techniques. vo2+/al-mcm-41 and vol2/al-mcm-41 were found to catalyze...
background: dendritic cells (dc) induce tumor or pathogen-specific t cell responses in humans. several laboratories have developed culture systems, including maturation factors for human dc from peripheral blood monocytes. we comprehensively compared standard maturation stimulus, an autologous monocyte-conditioned medium (mcm), with heparin for their ability to promote uniformly mature dc that ...
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