نتایج جستجو برای: شاخص z score بدون تورش
تعداد نتایج: 491635 فیلتر نتایج به سال:
background: standardization of the semen analysis may improve reproducibility. we assessed variability between laboratories in semen analyses and evaluated whether a transformation using z scores and regression statistics was able to reduce this variability. materials and methods: we performed a retrospective cohort study. we calculated between-laboratory coefficients of variation (cvb) for spe...
Standard ranges of atomic and residue volumes are computed in 64 highly resolved and well-refined protein crystal structures using the classical Voronoi procedure. Deviations of the atomic volumes from the standard values, evaluated as the volume Z-scores, are used to assess the quality of protein crystal structures. To score a structure globally, we compute the volume Z-score root mean square ...
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