Astrophysicists settle cosmic debate on magnetism of planets and stars

Using one of the world’s most powerful laser facilities, a team of scientists experimentally confirmed a long-held theory for cosmic magnetic field generation: the turbulent dynamo. By creating a hot turbulent plasma the size of a penny, that lasts a few billionths of a second, the researchers recorded how the turbulent motions can amplify a weak magnetic field to the strengths of those observed in our sun, distant stars, and galaxies.

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New brain disease test for Parkinson’s, dementia with Lewy bodies

Scientists have modified a test for early diagnosis of prion diseases with the goal of improving early diagnosis of Parkinson’s disease and dementia with Lewy bodies. The group tested cerebral spinal fluid samples from people with Parkinson’s disease; people with dementia with Lewy bodies; and controls, some of whom had Alzheimer’s disease. The test correctly excluded all the controls and diagnosed both Parkinson’s disease and dementia with Lewy bodies with 93 percent accuracy.

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Clock protein controls daily cycle of gene expression by regulating chromosome loops

It’s well known that the human body functions on a 24-hour schedule. The up-and-down daily cycles of a long-studied clock protein called Rev-erb coordinates the ebb and flow of gene expression by tightening and loosening loops in chromosomes, according to new research.

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