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Related Concept Videos

Detection of Gross Error: The Q Test01:00

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When one or more data points appear far from the rest of the data, there is a need to determine whether they are outliers and whether they should be eliminated from the data set to ensure an accurate representation of the measured value. In many cases, outliers arise from gross errors (or human errors) and do not accurately reflect the underlying phenomenon. In some cases, however, these apparent outliers reflect true phenomenological differences. In these cases, we can use statistical methods...
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Error is the deviation of the obtained result from the true, expected value or the estimated central value. Errors are expressed in absolute or relative terms.
Absolute error in a measurement is the numerical difference from the true or central value. Relative error is the ratio between absolute error and the true or central value, expressed as a percentage.
Errors can be classified by source, magnitude, and sign. There are three types of errors: systematic, random, and gross.
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When magnetic nuclei in a sample achieve resonance and undergo relaxation, the signal detected in NMR is an approximately exponential free induction decay. Fourier transform of an exponential decay yields a Lorentzian peak in the frequency domain. Lorentzian peaks in an NMR spectrum are defined by their amplitude, full width at half maximum, and position, where the peak width is governed by the spin-spin relaxation time alone. In real experiments, however, the applied magnetic field is rendered...
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To achieve precise distance measurements, especially in surveying and construction, certain corrections must be applied to account for potential sources of error like the standardization errors, temperature variations, and slope adjustments.Standardization error emerges when measurement equipment undergoes changes, such as wear, repairs, or weather impacts. To address this, surveyors compare the equipment’s readings to a standard. This process identifies any deviation that might lead to...
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Fixing Double-strand Breaks02:04

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The double-stranded structure of DNA has two major advantages. First, it serves as a safe repository of genetic information where one strand serves as the back-up in case the other strand is damaged. Second, the double-helical structure can be wrapped around proteins called histones to form nucleosomes, which can then be tightly wound to form chromosomes. This way, DNA chains up to 2 inches long can be contained within microscopic structures in a cell. A double-stranded break not only damages...
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Two basic types of preparation are used to visualize specimens with a light microscope: wet mounts and fixed specimens.
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Updated: Sep 7, 2025

Proofreading and DNA Repair Assay Using Single Nucleotide Extension and MALDI-TOF Mass Spectrometry Analysis
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Correction Notice

    Journal of Applied Statistics
    |June 16, 2022
    PubMed
    Summary

    This study corrects a previously published article DOI. The correction ensures accurate citation and referencing for future research in the field.

    Area of Science:

    • Bibliometrics
    • Scientific Publishing

    Context:

    • Correction of a published article DOI.
    • Ensuring accurate scientific record.

    Purpose:

    • To amend the Digital Object Identifier (DOI) for a specific publication.
    • To maintain the integrity of scientific literature.

    Summary:

    • The article DOI 10.1080/02664763.2019.1623867 has been corrected.
    • This ensures proper linkage and retrieval of the research.

    Impact:

    • Facilitates accurate citation and referencing.
    • Supports the reliability of scientific databases and archives.

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