Some used an electronic walkway, a long mat outfitted with sensors that measure small differences in walking speed, cadence (the number of steps per minute), the width of the stride and variability (how often the person's stride changes).
A linear mixture model based on calibrated, atmospherically corrected Probe-1 hyperspectral imagery was compared with three vegetation indices to test its relative ability to measure small differences in percent green vegetative cover for areas of sparse vegetation in arid environments.
By also placing them in precisely arranged arrays, he employs a very sensitive technique called interferometry to measure small differences in the arrival times of the radiation photons, thereby greatly increasing the information they provide.
"We could measure small differences in the redshift of the galaxies and see that the light from galaxies in the middle of a cluster had to 'crawl' out through the gravitational field, while it was easier for the light from the outlying galaxies to emerge," Wojtak says.
The two major strengths of our assay are the ability to: 1) reproducibly measure small differences in allelic expression for both common and rare mRNAs and 2) generate population distributions of log2AEI ratios that are useful for generating testable hypotheses concerning the number, location and relative contributions of genetic variants that regulate mRNA expression.
Regardless of the experimental technique employed, appropriate normalization is essential for obtaining an accurate and reliable quantification of gene expression levels, especially when measuring small expression differences or when working with tissues of different histological origin [ 9].
Regardless of the experimental technique employed, appropriate normalization is essential for obtaining accurate and reliable quantifications of gene expression levels, especially when measuring small expression differences or when working with tissues of different histological origin [ 9].
Interest in human biomonitoring has undergone a renaissance in recent years with the application of new innovative analytical techniques for measuring small incremental differences in body burden or receptor binding.
But baby is measuring small.
Detecting those spirals required measuring infinitesimally small differences in the temperature of the microwaves.
