Related Experiment Video
Updated: Feb 16, 2026
09:41
Visualization of Cell Cycle Variations and Determination of Nucleation in Postnatal Cardiomyocytes
Published on: February 24, 2017
9.1K
Area variation in recreational cycling in Melbourne: a compositional or contextual effect?
C B M Kamphuis1, K Giskes, A M Kavanagh
1Department of Public Health, Erasmus University Medical Centre, P.O. Box 2040, 3000 CA Rotterdam, The Netherlands. c.kamphuis@erasmusmc.nl
Journal of Epidemiology and Community Health
|September 16, 2008
Summary
Area characteristics like safety and aesthetics influence recreational cycling. Supportive environments may reduce inequalities and differences in cycling participation across neighborhoods.
Area of Science:
- Urban planning and public health research.
- Environmental influences on physical activity behavior.
Background:
- Socioeconomic inequalities persist in recreational cycling participation.
- Understanding area-level factors is crucial for promoting equitable cycling.
Purpose of the Study:
- To investigate associations between area socioeconomic status and recreational cycling.
- To determine if area characteristics mediate socioeconomic inequalities in cycling.
Main Methods:
- Cross-sectional survey of 2349 adults in Melbourne, Australia.
- Objective environmental audits and Geographic Information Systems (GIS) for area characteristics.
- Multilevel logistic regression models analyzing cycling frequency, area deprivation, and environmental factors.
Main Results:
- Residents of deprived areas showed lower odds of recreational cycling.
- Significant between-area variations in cycling were observed.
- Aesthetic and safety characteristics were associated with cycling participation and explained variations.
Conclusions:
- Improving area safety and aesthetics can reduce inequalities in recreational cycling.
- Environmental interventions are key to promoting equitable cycling access and participation.
Related Concept Videos
01:14What is Variation?
18.8K
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...
The range, standard deviation, standard error, and variance are the different measures of variation.
Range: The range is the difference between its maximum and...
18.8K
01:19Variation
8.1K
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...
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...
8.1K
03:35Classifying Matter by Composition
91.9K
Matter: Pure Substances and Mixtures
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
According to its composition, the matter can be classified into two broad categories — pure substances and mixtures.
A pure substance is a form of matter that has a constant composition throughout with uniform properties. For example, any sample of sucrose has the same composition and same physical properties, such as melting point, color, and sweetness, regardless of the source from which it is isolated.
A mixture is composed of two or...
91.9K
02:53Conservative Site-specific Recombination and Phase Variation
6.9K
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...
The recognition sites for Cre recombinase called LoxP...
6.9K
01:18Variation of Atmospheric Pressure
4.2K
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...
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...
4.2K
02:26Comparing Copy Number Variations and SNPs
18.8K
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%...
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%...
18.8K