Tag: "snowball" at biology news
Study casts doubt on 'Snowball Earth' theory
...00 million years ago, which is a challenge for the snowball
theory." The evidence from the drill core does not prove that large parts of the ocean remained free of sheet ice during the pre-Cambrian glaciation. It is statistically unlikely but possible, Olcott said, that the drill core found one of the tiny "...
Septum keeps neurons in synch, can reduce epileptic seizures by 90 percent
... a chatter that has to be kept in check, or it can snowball
into an electrical storm that marks an epileptic seizure, Colom explained. Epilepsy affects an estimated 4 million Americans, he said. There are a variety of ways to induce neurons to fire rhythmically, including, interestingly, engaging in stimula...
Scientists find potential 'off-switch' for HIV virus
...more Tat proteins the gene creates, resulting in a snowball
effect that is difficult to stop," Weinberger said of the onset of full-blown infection. Mechanisms do exist to halt the process, however. For example, another enzyme within the affected cell called SirT1 is capable of pulling the chemical tail o...