Tag: "squeezing" at biology news
Efforts to clone primates move forward
...n to replicating the South Korean method of gently squeezing
out the egg's nucleus rather than the traditional practice of removing genetic material with a vacuum needle, Pittsburgh researchers performed nuclear transfer with eggs that had not yet achieved full maturity. Cells prepare to divide by moving throu...
Difference in talking louder, talking over noise depends on verbal cues, internal targets
...ed their expiratory muscle tension and pressure by squeezing
their abdominal or stomach muscles. This was the "only condition where there were significant changes from 'comfortable' in the abdominal measurements." This large increase "may suggest that subjects underestimated the amount of pressure that would b...
Rhythm gene discovered
...at contracts every seven seconds during ovulation, squeezing
out eggs so they can be fertilized by sperm. The intestines, which must pressurize and then release so the worm can defecate every 45 to 50 seconds. When the scientists disabled the vav-1 gene, the worms could not swallow food and died before t...
Scientists discover secret behind human red blood cell's amazing flexibility
...rina, ceaselessly spinning, tumbling, bending, and squeezing
through openings narrower than its width to dispen...ay explain why the deformations of red blood cells squeezing
through narrow capillary openings are so important: the movement of proto-filaments may effectively ...
Unearthing explanations for New Madrid earthquakes
...eavy it pressed into the Earth's surface. Think of squeezing
a rubber ball with your finger. As the climate warmed, melting the ice, the ground was freed of the heavy pressure of the ice sheet. It is the constant release of this pressure that causes earthquakes in New Madrid, he explained. Zoback's model predi...
Polynesia explorers created worldwide web of scientific knowledge
...the outcome of a system reaching across the globe, squeezing
from the travelers information to satisfy state ministers, the scientific community and public opinion," wrote Liebersohn, a European cultural and intellectual historian at the University of Illinois at Urbana-Champaign. Braving extremes of polar col...
Researchers show that veins stiffen as we age
...s having one foot immersed in cold water, or while squeezing
a handgrip. They also administered a nitroglycerin pill under the tongue of each participant to relax the veins. In each case, they found that the tests had no effect on the response of the veins in either age group. "Thus, we think that the stiffen...
Climate change a threat to Indonesian agriculture, study says
... with an almost rainless dry season in some areas, squeezing
rice farmers on both ends." While the study did not address how climate change could affect the frequency or intensity of El Nio events in the future, the authors concluded that even if there were no changes in the current El Nio pattern, Indonesia...