نتایج جستجو برای: age determination
تعداد نتایج: 995041 فیلتر نتایج به سال:
in this study, a simple, rapid and selective method was developed for the determination of dexamethasone. the proposed method is based on inhibitory effect of dexamethasone on the oxidation of orange-g by bromate in sulfuric acid media. the reaction was followed spectrophotometrically at 478.5 nm (?max). under optimum experimental conditions, (72.6 ?mol l-1 of orange-g, 0.76 mol l-1 of h2so4, 0...
Elephants have the longest pregnancy of all mammals, with an average gestation of around 660 days, so their embryonic and foetal development have always been of special interest. Hitherto, it has only been possible to estimate foetal ages from theoretical calculations based on foetal mass. The recent development of sophisticated ultrasound procedures for elephants has now made it possible to mo...
An original software package for determination of biological age has been offered. The package is simple for understanding and convenient in application. It is designed for the users who are not professionals in the fields of applied statistics or computer science. The problems and the algorithms realized in the package, the features and the possibilities of their application are described in b...
Introduction: The discovery of a secondary-crater strewn field generated by the 10-km crater Zunil [1] stirred up a discussion of what is the real shape of the primary production crater size-frequency distribution and if age determination based on craters in the smaller-crater size range is possible. The main point of the discussion is whether or not the steep branch (below about 1 km diameter)...
PURPOSE T1WI (T1 weighted image) was acquired in order to grade bone fusion following the studies by FIFA (Federation Internationale de Football Associations). Research using images other than T1WI has not been reported. The aim of this study is to evaluate the grade of epiphyseal fusion by T2* weighted images (T2*WI) and to investigate new findings on T2*WI as compared with T1WI. METHODS A t...
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