نتایج جستجو برای: مدل اکتیویته wilson
تعداد نتایج: 138164 فیلتر نتایج به سال:
We describe mirror manifolds in dimensions different from the familiar case of complex threefolds. We emphasize the simplifying features of dimension three and supply more robust methods that do not rely on such special characteristics and hence naturally generalize to other dimensions. The moduli spaces for Calabi–Yau d-folds are somewhat different from the “special Kähler manifolds” which had...
This paper describes a model for Computer Support Reflective Learning (CSRL) as a conceptual framework to support the design, application and evaluation for tools supporting reflection as a learning mechanism at work. The CSRL model has been derived from theory and inspired by empirical work done in the MIRROR project. It contains necessary steps of reflection, which form a reflection cycle and...
زمینه: اسکن استخوان رایجترین اسکن در مراکز پزشکی هستهای است. اندازهگیری خطرات ناشی از پرتو و استفاده بهینه از تکنیکهای تشخیصی مختلف با رادیودارو مستلزم اندازهگیری دقیق دز جذبی برای هر گروه از بیماران میباشد. هدف از انجام این تحقیق تعیین دز جذبی اندامها در بیماران تحت اسکن استخوان با استفاده از روش MIRD بوده است. مواد و روشها: در این مطالعه به هر یک از بیماران 25 میلیکوری رادیودارو 99mT...
wilson disease is a metabolic disorder with an autosomal recessive genetic pattern and occurs in 1-4 of every 100000 individuals. inactivation of the atp7b gene leads to accumulation of the toxic copper to liver and brain causing hepatic and neurological complication. therefore, most patients suffer from chronic hepatic inflammation and central nervous system disorder. nowadays, up to 500 mutat...
A viscosity model, based on Eyring’s absolute rate theory combined with a cubic PR equation of state and Wong-Sandler mixing rule, has been proposed in order to correlate viscosities of aqueous solutions of alkanolamine mixtures at atmospheric pressure and different temperatures. In the proposed method, the energy and size parameters in studied Equation of State (EoS) have been obtained usi...
bacground: wilson's disease is a rare autosomal recessive disorder characterized by toxic accumulation of copper in liver and brain. the disorder is caused by mutations in the atp7b gene, encoding a copper transporting p-type atpase. characterization of the spectrum of mutations in this gene is important both for diagnosis and genetic counseling of the families.materials and methods: we en...
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