Jove
Visualize
Contact Us
JoVE
x logofacebook logolinkedin logoyoutube logo
ABOUT JoVE
OverviewLeadershipBlogJoVE Help Center
AUTHORS
Publishing ProcessEditorial BoardScope & PoliciesPeer ReviewFAQSubmit
LIBRARIANS
TestimonialsSubscriptionsAccessResourcesLibrary Advisory BoardFAQ
RESEARCH
JoVE JournalMethods CollectionsJoVE Encyclopedia of ExperimentsArchive
EDUCATION
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab ManualFaculty Resource CenterFaculty Site
Terms & Conditions of Use
Privacy Policy
Policies

Related Concept Videos

What is Variation?01:14

What is Variation?

17.6K
Apart from the measures of central tendency, distribution, outliers, and the changing characteristics of data with time, an important characteristic of any data set is its variation or spread. In some data sets, the data values are concentrated closely near the mean; in others, the data values are more widely spread out from the mean.
The range, standard deviation, standard error, and variance are the different measures of variation.
Range: The range is the difference between its maximum and...
17.6K
Variation01:19

Variation

7.8K
An important characteristic of any set of data is the variation in the data. In some data sets, the data values are concentrated closely near the mean; in other data sets, the data values are more widely spread out from the mean. The most common measure of variation, or spread, is the standard deviation, which is the square root of variance.
When independent and dependent variables are plotted on a scatter plot, the slope of a line is a value that describes the rate of change between the two...
7.8K
Conservative Site-specific Recombination and Phase Variation02:53

Conservative Site-specific Recombination and Phase Variation

6.7K
Because the DNA segments are cut and reorganized in a direction-specific manner, site-specific recombination has emerged as an efficient genetic engineering technique. Flippase and Cyclization recombinases or Flp and Cre, respectively, are two members of the tyrosine recombinase family derived from bacteriophages, that are used to mediate site-specific DNA insertions, deletions, and targeted expression of proteins in mammalian cell lines.
The recognition sites for Cre recombinase called LoxP...
6.7K
Variation of Atmospheric Pressure01:18

Variation of Atmospheric Pressure

4.1K
Change in atmospheric pressure with height is particularly interesting. The decrease in atmospheric pressure with increasing altitude is due to the decreasing gravitational force per unit area as we move away from the surface of the earth.
Assuming the air temperature is constant at a given altitude and that the ideal gas law of thermodynamics describes the atmosphere to a good approximation, one can find the variation of atmospheric pressure with height.
Let p(y) be the atmospheric pressure at...
4.1K
Comparing Copy Number Variations and SNPs02:26

Comparing Copy Number Variations and SNPs

18.6K
Sequencing of the human genome has opened up several best-kept secrets of the genome. Scientists have identified thousands of genome variations that exist within a population. These variations can be a single nucleotide or a larger chromosomal variation.
Copy number variations or CNVs are the structural variations that cover more than 1kb of DNA sequence. The single nucleotide polymorphism (SNP), on the other hand, is a single nucleotide change or a point mutation that is found in more than 1%...
18.6K
Coefficient of Variation01:10

Coefficient of Variation

8.3K
The coefficient of variation measures the dispersion of the data points or distribution around the mean. Using the coefficient of variation, we can compare two data series with drastically different means or different units of measurement. The coefficient of variation for a sample and a population is expressed as a percentage of the ratio of standard deviation to the mean.
The coefficient of variation is a practical statistical tool in finance. It allows investors to assess the volatility or...
8.3K

You might also read

Related Articles

Articles linked to this work by shared authors, journal, and citation graph.

Sort by
Same author

Epidemiology of adult asthma within the Hungarian population between 2009 and 2019 - A retrospective financial database analysis.

Global epidemiology·2025
Same author

Tafel-analysis of the AP-CITROX decontamination technology of Inconel alloy 690.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2021
Same author

The excretion of <sup>241</sup>Am and <sup>137</sup>Cs from the broilers organs after long-term application.

Journal of environmental radioactivity·2021
Same author

Comparison of analytical methods for measuring chloride content in crude oil.

Applied radiation and isotopes : including data, instrumentation and methods for use in agriculture, industry and medicine·2021
Same author

Intercomparison on the measurement of the thoron exhalation rate from building materials.

Journal of environmental radioactivity·2020
Same author

How can contemporary climate research help understand epidemic dynamics? Ensemble approach and snapshot attractors.

Journal of the Royal Society, Interface·2020

Related Experiment Video

Updated: Jan 24, 2026

Quantitative Immunofluorescence Assay to Measure the Variation in Protein Levels at Centrosomes
09:39

Quantitative Immunofluorescence Assay to Measure the Variation in Protein Levels at Centrosomes

Published on: December 20, 2014

15.8K

ROLE OF METEOROLOGY AND LITHOLOGY IN THE TEMPORAL VARIATION OF THE OUTDOOR RADON LEVEL.

D Kikaj1,2, T Kovács3,4, J Vaupotič2

  • 1Jožef Stefan International Postgraduate School, Jamova cesta 39, Ljubljana, Slovenia.

Radiation Protection Dosimetry
|May 29, 2019
PubMed
Summary

Outdoor radon concentration is sensitive to atmospheric mixing, especially under clear skies. Cloudy weather disrupts typical radon diurnal patterns due to rapid atmospheric changes.

More Related Videos

Quantitative and Temporal Control of Oxygen Microenvironment at the Single Islet Level
11:49

Quantitative and Temporal Control of Oxygen Microenvironment at the Single Islet Level

Published on: November 17, 2013

9.5K
Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
07:15

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Published on: January 16, 2019

11.3K

Related Experiment Videos

Last Updated: Jan 24, 2026

Quantitative Immunofluorescence Assay to Measure the Variation in Protein Levels at Centrosomes
09:39

Quantitative Immunofluorescence Assay to Measure the Variation in Protein Levels at Centrosomes

Published on: December 20, 2014

15.8K
Quantitative and Temporal Control of Oxygen Microenvironment at the Single Islet Level
11:49

Quantitative and Temporal Control of Oxygen Microenvironment at the Single Islet Level

Published on: November 17, 2013

9.5K
Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation
07:15

Determining the Likelihood of Variant Pathogenicity Using Amino Acid-level Signal-to-Noise Analysis of Genetic Variation

Published on: January 16, 2019

11.3K

Area of Science:

  • Environmental Science
  • Atmospheric Physics
  • Radiological Protection

Background:

  • Radon (Rn) is a naturally occurring radioactive gas.
  • Radon concentration in the atmosphere is influenced by meteorological conditions and topography.
  • Understanding radon behavior is crucial for environmental monitoring and public health.

Purpose of the Study:

  • To investigate the relationship between outdoor radon concentration and atmospheric boundary layer (ABL) mixing volume.
  • To compare radon behavior in different topographical areas (sub-Alpine basin and sub-Mediterranean valley).
  • To analyze the influence of seasonal and weather conditions (clear-sky vs. cloudy) on radon concentrations.

Main Methods:

  • Continuous monitoring of outdoor radon concentration and meteorological parameters.
  • Data analysis categorized by season (winter/summer) and weather conditions (clear-sky/cloudy).
  • Comparison of observed radon time series with calculated atmospheric boundary layer 'mixing volume'.

Main Results:

  • Radon concentration showed significant sensitivity to the expected ABL mixing volume at both study sites.
  • The correlation between radon concentration and ABL mixing was most pronounced under calm, clear-sky conditions.
  • Cloudy conditions, associated with rapid weather changes, led to well-mixed ABL and disrupted typical diurnal radon trends.

Conclusions:

  • Atmospheric boundary layer dynamics are a key factor controlling outdoor radon concentrations.
  • Topography and meteorological conditions, particularly cloud cover, significantly modulate radon behavior.
  • Clear-sky, calm conditions provide the most reliable scenario for observing radon-ABL mixing relationships.