نتایج جستجو برای: mn2
تعداد نتایج: 2944 فیلتر نتایج به سال:
Pigeon cytosolic malic enzyme has a double dimer quaternary structure with three tryptophanyl residues in each monomer distributed in different structural domains. The enzyme showed a three-state unfolding phenomenon upon increasing the urea concentration (Chang, H. C., Chou, W. Y., and Chang, G. G. (2002) J. Biol. Chem. 277, 4663-4671). At urea concentration of 4-4.5 m, where the intermediate ...
The central phosphatase domain of Clostridium thermocellum polynucleotide kinase/phosphatase (CthPnkp) belongs to the dinuclear metallophosphoesterase superfamily. Prior mutational studies of CthPnkp identified 7 individual active site side chains (Asp-187, His-189, Asp-233, Asn-263, His-323, His-376, and Asp-392) required for Ni2+-dependent hydrolysis of p-nitrophenyl phosphate. Here we find t...
this study deals with the uptake of cd2+ and mn2+ ions from contaminated water using two iranian natural clinoptilolite-rich tuffs from meyaneh (z-m), and semnan (z-s) regions , and a synthetic zeolite-p from z-m sample (z-p) under static (batch operation) and dynamic (column operation) conditions. to investigate the selectivity of the zeolites toward cd2+ and mn2+ cations, the ion exchange is...
Despite concerted functional genomic efforts to understand the complex phenotype of ionizing radiation (IR) resistance, a genome sequence cannot predict whether a cell is IR-resistant or not. Instead, we report that absorption-display electron paramagnetic resonance (EPR) spectroscopy of nonirradiated cells is highly diagnostic of IR survival and repair efficiency of DNA double-strand breaks (D...
Dual emitting materials are of great interest for luminescence thermometry. The operating temperature range, the thermal sensitivity as well emission color crucial parameters, which define competitiveness sensor. In this work, we propose a new and convenient method modulation range through control dopant oxidation states crystal field variations. To end, investigated inorganic phosphors in two ...
مطالعات ترمودینامیکی و سطح انرژی پتانسیل برای واکنشهای mn2++o3 و fe2++o3 با استفاده از محاسبات ab initio در سطح mp2/6-311++g** و b3lyp/6-311++g** انجام شد. نتایج نشان داد که واکنش mn2++o3 هم از دیدگاه ترمودینامیکی و هم از دیدگاه سینتیکی بهتر انجام می شود . همچننی زمانیکه یون fe2+ یا mn2+ به اکسیژن انتهایی مولکول ازن حمله می کند، واکنش در مسیر نامسطح آغاز می شود و از طریق ts1 یک حد واسط مجازی، ت...
In order to study the effect of foliar applications of micronutrients on yield, extraction oil production and chemical composition of pot marigold (Calendula officinalis), two experiments were conducted in the randomized complete block design with three replications in Shahrekord, Iran during two growing seasons 2014 and 2015. The objectives of this study were to determine the effects of foliar...
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