The fiber keeps the polymer particles evenly spaced so that they can soak up the blood quickly while expanding uniformly.
It works because certain types of hard rock, such as quartz and feldspar, do not expand uniformly when they get hot.
Once the targets are labeled, the researchers break down the proteins that hold the tissue sample together, allowing it to expand uniformly as the polyacrylate gel swells.
Clearly, if the division planes in a cell mass are randomly oriented and individual cells expand uniformly, the tissue will enlarge as a sphere.
However, EVA does not expand uniformly and currently there is no precise method of predicting the expansion of components with variable thickness.
Hubble was the astronomer who in 1929 discovered that the universe is expanding uniformly in all directions, thereby kicking off the search for the elusive number for that expansion rate.
In all three mutants, developing tracheal tubes bud and extend normally, but the epithelial walls of the tubes do not expand uniformly, and the resultant tubes are grossly misshapen, with constricted and distended regions all along their lengths.
By making hexagonal cuts into flat materials the team is able to let the pieces expand uniformly allowing them to create, say, a sphere from a rigid piece of plastic.
Here, the 'cord' is the spinal cord proper (not the thecal sac) extended 5 mm inferior and superior to the involved vertebral bodies, and the 'PTV' is the involved segment of the vertebral body expanded uniformly by 2 mm but excluding the spinal cord volume expanded by 2 mm (Ref. RTOG 0631).
The glowing, bluish lobes of the 2-light-year-diameter nebula aren't expanding uniformly in all directions, possibly because the dying star whose remnants are now a white dwarf in the center of the nebula had a close-orbiting companion.
"At first it kind of puzzled us because it didn't appear to expand uniformly," Schaefer said.
