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Related Concept Videos

Distance Corrections01:15

Distance Corrections

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...
NMR Spectrometers: Resolution and Error Correction01:14

NMR Spectrometers: Resolution and Error Correction

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...
Accuracy, limits, and approximation01:28

Accuracy, limits, and approximation

Accuracy, limits, and approximations are common in many fields, especially in engineering calculations. These concepts are imperative for ensuring that a given value is as close as possible to its true value.
Accuracy is defined as the closeness of the measured value to the true or actual value. In engineering mechanics, repeated measurements are taken during theoretical or experimental analyses to ensure that the result is precise and accurate.
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Types of Errors: Detection and Minimization01:12

Types of Errors: Detection and Minimization

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.
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Contaminants and Errors01:16

Contaminants and Errors

Effective sample preparation is crucial for accurate and reliable laboratory analysis. During this process, two significant sources of error can arise: concentration bias from improper sample splitting and contamination caused by methods used to reduce particle size, such as grinding or homogenization. Identifying and minimizing these potential errors is crucial to ensuring the validity of the analysis.
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Updated: Jul 12, 2026

Proofreading and DNA Repair Assay Using Single Nucleotide Extension and MALDI-TOF Mass Spectrometry Analysis
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Published on: June 19, 2018

Corrections and clarifications

    Science (New York, N.Y.)
    |December 4, 1992
    PubMed
    Summary

    This correction clarifies Dr. Gardner's affiliation and the origin of his views. His letter reflects personal opinions, not official subcommittee positions, ensuring accurate attribution in scientific discourse.

    Area of Science:

    • Scientific communication
    • Policy analysis

    Background:

    • A previous publication incorrectly listed Dr. Gardner's address.
    • This address implied an official endorsement of his views by a government subcommittee.

    Purpose of the Study:

    • To correct the attribution of a published letter.
    • To clarify the independence of Dr. Gardner's stated views.

    Main Methods:

    • Review of publication details.
    • Verification of Dr. Gardner's fellowship status and tenure.

    Main Results:

    • Dr. Gardner's address was inaccurately reported.
    • His views were personal, not those of the Subcommittee on Human Resources and Intergovernmental Relations.

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    Conclusions:

    • Accurate attribution is crucial for scientific integrity.
    • Personal opinions should not be conflated with institutional stances.