News tagged with brain cells

Scientists solve mystery of the eye

( -- Scientists have a good overall understanding of human vision: when light enters our eyes, it is focused by the lens and strikes the retina in the back of the eye. The light causes some of the millions of ...

dateNov 17, 2011 in Biochemistry feature
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Attacking cancer cells with nanoparticles

( -- About every three days, Colleen Alexander, a chemistry graduate student, feeds cells that cause a deadly type of brain cancer. It’s a ritual that involves assessing the health of the cells under a microscope, ...

dateOct 25, 2011 in Bio & Medicine
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How cells know when to tighten the belt

The epithelial cells that line the surface of tissues form a tightly sealed barrier, with individual cells joined together by structures called apical junctional complexes (AJCs). However, embryonic epithelium undergoes multiple ...

dateOct 21, 2011 in Cell & Microbiology
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Bursting neurons follow the same beat, sometimes

A simplified mathematical model of the brain's neural circuitry shows that repetitious, overlapped firing of neurons can lead to the waves of overly synchronized brain activity that may cause the halting movements that are ...

dateSep 12, 2011 in Mathematics
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