Tag: "presses" at biology news
Scientists identify molecular source of friction
... body over anotheris proportional to the load that presses
them together and is also independentof the areas of the surfaces. Scientists have argued, however, about therelative importance of surface roughness, chemistry and other factors that mightcontribute to friction. Simple theories that leave out the "...
Molecular repair of ruptured discs
...e. The semifluid disc filling then spills out and presses
on nerves, resulting in low back pain and sciatica, shooting pain in the legs. "We know that about half of patients with disc herniation will improve within six weeks, and that the herniation may be completely resolved over time," Spengler said. ...
Nanofabricated 'gel' separates DNA
...the longer strand, in the form of a larger sphere, presses
a larger area against the barrier, meaning that there are more parts of itself that might extend into the shallow area to form a sort of beachhead and pull the rest through. Armed with this knowledge, Han used the facilities of the Cornell Nanofabric...
MIT probes cartilage on nanoscale
... steric forcesor those that result when one simply presses
down on a tissuealso played a role. "Our primary goals are a total deconvolution of the individual force components, a complete understanding of how they are related to each other, and how they lead to macroscopic biomechanical properties," the team ...
Purdue biologists expose the inner workings of viral machine
...could play a role in determining how to stop those presses
someday." The discovery was possible because of an innovative improvement on the microscope technology developed in Baker's lab at Purdue. To get the complete image, graduate student Zhang obtained images of 8,000 different particles, each of which s...
Carbohydrates offer some help in muscle protein synthesis, but not enough for the desired effect
...exercise bout (10 sets of eight repetitions of leg presses
at 80 percent of one repetition maximum) before they rested in bed for four hours. One group (CHO) received a drink consisting of 100 grams of carbohydrates one hour after exercise; the placebo group received a noncaloric placebo drink. Leg amino aci...