نتایج جستجو برای: reaction time rt
تعداد نتایج: 2253306 فیلتر نتایج به سال:
background and aims: influenza a virus infects birds and some mammalian including human. h1 and h3 subtypes are circulated in both human and birds’ population. to determine the prevalence of the mentioned subtypes in birds, different captive bird species in tehran zoo, and affiliated centers in tehran were investigated for virus infection. methods: in this study, between november 2008 and febru...
abstract in aggregate, active forms of reactive silica with mineral names are sometimes associated with sand and gravel in concrete mixture. alkali hydroxides originated from alkalis in the cement or other resources form an alkaline silica gel with this reactive silica which becomes swallowed and expanded during time causing damage to concrete. there have been growing researches on alkaline r...
abstract in first part of this project, the use of a new and biguanid-like catalyst supported on silica as a recyclable catalyst provides a new route for the synthesis of a variety of arylalkylidene rhodanine derivatives through knoevenagle reaction in at present of solvent at room temperature. rhodanine derivatives and especially arylalkylidene rhodanines have proven to be attractive compound...
زمینه و هدف: زمان واکنش (rt یا reaction time) یکی از عوامل مهم تصمیم گیری و نشان دهنده سرعت پردازش اطلاعات (ip یا information process) است که می تواند بر اجرای مهارت های ورزشی اثرگذار باشد، ولی اختلاف آن در بین واکنش های بینایی و شنوایی زنان و مردان ورزشکار در هاله ای از ابهام است. هدف از مطالعه حاضر، مقایسه زمان واکنش ساده ( srtیا simple reaction time) و زمان واکنش انتخابی (crt یا choice react...
زمینه و هدف: زمان واکنش (RT یا Reaction Time) یکی از عوامل مهم تصمیم گیری و نشان دهنده سرعت پردازش اطلاعات (IP یا Information Process) است که می تواند بر اجرای مهارت های ورزشی اثرگذار باشد، ولی اختلاف آن در بین واکنش های بینایی و شنوایی زنان و مردان ورزشکار در هاله ای از ابهام است. هدف از مطالعه حاضر، مقایسه زمان واکنش ساده ( SRTیا Simple Reaction Time) و زمان واکنش انتخابی (CRT یا Choice React...
in this thesis, a better reaction conditions for the synthesis of spirobarbiturates catalyzed by task-specific ionic liquid (2-hydroxy-n-(2-hydroxyethyl)-n,n-dimethylethanaminium formate), calcium hypochlorite ca(ocl)2 or n-bromosuccinimide (nbs) in the presence of water at room temperature by ultrasonic technique is provided. the design and synthesis of spirocycles is a challenging task becaus...
The real-time polymerase chain reaction (RT-PCR), also called quantitative real-time polymerase chain reaction (QRT-PCR) or kinetic polymerase chain reaction (kPCR), is a technique used to simultaneously quantify and amplify a DNA molecule. It is used to determine whether a specific DNA sequence is present in the sample; and if it is present, the number of copies in the sample. It is the real-t...
during 2009-10, real time rt-pcr and conventional rt-pcr techniques used for detecting btvs rna in 310 blood samples. for real time and gel based rt-pcr segment-1 and segment-10 selected as conserve genes to search any btv strains. using these methods, 58 (%18.7) and 14 (%4.5) positive samples were detected among the clinically suspected sheep. sensitivity of both molecular techniques evalua...
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