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Related Concept Videos

Range00:59

Range

13.9K
The range is one of the measures of variation. It can be defined as the difference between a dataset's highest and lowest values. For example, in the study of seven 16-ounce soda cans, the filled volume of soda was measured, thus producing the following amount (in ounces) of soda:
15.9; 16.1; 15.2; 14.8; 15.8; 15.9; 16.0; 15.5
Measurements of the amount of soda in a 16-ounce can vary since different subjects record these measurements or since the exact amount - 16 ounces of liquid, was not...
13.9K
Distance Corrections01:15

Distance Corrections

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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...
285
Power Factor Correction01:20

Power Factor Correction

515
The power transmission to a factory involves the transfer of apparent power, a combination of active and reactive power. The power factor measures how effectively electrical power is converted into useful work output. The ratio of the real power (KW) that does the work to the apparent power (KVA) supplied to the circuit.
515
Variation: Normal Distribution, Range, and Standard Deviation02:32

Variation: Normal Distribution, Range, and Standard Deviation

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In the field of psychology, there are several ways to organize measurements of a trait, feature, or characteristic (i.e., variables). Qualitative data, such as ethnicity, can be tabulated into a frequency count to provide information about the proportion, as well as the variety of groups in a sample or population. On the other hand, researchers can perform a wider set of calculations on quantitative data. The mean, mode, and median, for instance, are central tendency measures to identify a...
27.0K
¹H NMR: Long-Range Coupling01:27

¹H NMR: Long-Range Coupling

2.7K
The coupling interactions of nuclei across four or more bonds are usually weak, with J values less than 1 Hz. While these are usually not observed in spectra, the presence of multiple bonds along the coupling pathway can result in observable long-range coupling.
In alkenes, spin information is communicated via σ–π overlap, as seen in allylic (four-bond) and homoallylic (five-bond) couplings. These coupling interactions are stronger when the σ bond is parallel to the alkene...
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Difference from Background: Limit of Detection01:05

Difference from Background: Limit of Detection

8.2K
The limit of detection (LOD) is the smallest amount of analyte that can be distinguished from the background noise. The LOD value corresponds to the concentration at which the analyte signal is three times larger than the standard deviation of the blank signal. Below this value, the analyte signal cannot be differentiated from the background noise. It is calculated by dividing the calibration slope by 3 times the standard deviation of the blank signals.
The LOD indicates the presence or absence...
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Related Experiment Video

Updated: Jan 27, 2026

Eye-tracking to Distinguish Comprehension-based and Oculomotor-based Regressive Eye Movements During Reading
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Eye-tracking to Distinguish Comprehension-based and Oculomotor-based Regressive Eye Movements During Reading

Published on: October 18, 2018

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Correction: Differences in eye movement range based on age and gaze direction.

Won June Lee1, Ji Hong Kim1,2, Yong Un Shin1

  • 1Department of Ophthalmology, Hanyang University College of Medicine, Seoul, Korea.

Eye (London, England)
|March 30, 2019
PubMed
Summary

This study corrects funding information for research supported by Hanyang University and the National Research Foundation of Korea. This ensures accurate acknowledgment of financial contributions to the scientific work.

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Area of Science:

  • Scientific research funding
  • Grant acknowledgment

Context:

  • Correction of previously published article
  • Ensuring accurate attribution of financial support

Purpose:

  • To amend the funding statement in a published article
  • To provide correct funding details for transparency and integrity

Summary:

  • The authors have identified and are correcting an error in the funding information.
  • The research was supported by Hanyang University and the National Research Foundation of Korea.

Impact:

  • Maintains scientific record accuracy
  • Ensures proper recognition of funding bodies
  • Facilitates future research collaborations and funding applications