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  2. Virus quantification - Wikipedia

    en.wikipedia.org/wiki/Virus_quantification

    Virus quantification is counting or calculating the number of virus particles (virions) in a sample to determine the virus concentration. It is used in both research and development (R&D) in academic and commercial laboratories as well as in production situations where the quantity of virus at various steps is an important variable that must be monitored.

  3. Dose–response relationship - Wikipedia

    en.wikipedia.org/wiki/Dose–response_relationship

    Statistical analysis of dose–response curves may be performed by regression methods such as the probit model or logit model, or other methods such as the Spearman–Kärber method. [5] Empirical models based on nonlinear regression are usually preferred over the use of some transformation of the data that linearizes the dose-response ...

  4. Spearman's rank correlation coefficient - Wikipedia

    en.wikipedia.org/wiki/Spearman's_rank_correlation...

    The simplified method should also not be used in cases where the data set is truncated; that is, when the Spearman's correlation coefficient is desired for the top X records (whether by pre-change rank or post-change rank, or both), the user should use the Pearson correlation coefficient formula given above.

  5. Indirect immunoperoxidase assay - Wikipedia

    en.wikipedia.org/wiki/Indirect_immunoperoxidase...

    Microtiter plates with 96, 384 and 1536 wells. Indirect immunoperoxidase assay (IPA) is a laboratory technique used to detect and titrate viruses that do not cause measurable cytopathic effects and cannot be measured by classical plaque assays.

  6. Rank correlation - Wikipedia

    en.wikipedia.org/wiki/Rank_correlation

    Dave Kerby (2014) recommended the rank-biserial as the measure to introduce students to rank correlation, because the general logic can be explained at an introductory level. The rank-biserial is the correlation used with the Mann–Whitney U test, a method commonly covered in introductory college courses on statistics. The data for this test ...

  7. Spearman–Brown prediction formula - Wikipedia

    en.wikipedia.org/wiki/Spearman–Brown_prediction...

    The Spearman–Brown prediction formula, also known as the Spearman–Brown prophecy formula, is a formula relating psychometric reliability to test length and used by psychometricians to predict the reliability of a test after changing the test length. [1] The method was published independently by Spearman (1910) and Brown (1910). [2] [3]

  8. File:Adaptive chart - adaptive method.pdf - Wikipedia

    en.wikipedia.org/wiki/File:Adaptive_chart...

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  9. Damköhler numbers - Wikipedia

    en.wikipedia.org/wiki/Damköhler_numbers

    In its most commonly used form, the first Damköhler number (Da I) relates particles' characteristic residence time scale in a fluid region to the reaction timescale. The residence time scale can take the form of a convection time scale, such as volumetric flow rate through the reactor for continuous ( plug flow or stirred tank ) or semibatch ...