PET tagged posts

It happens far too often: you plug your laptop in and walk away only to return hours or days later to find it has lost some of its charge despite sitting idle and unused.

The phenomenon—called self-discharge—has frustrated users and industry alike, and puzzled manufacturers trying to determine why lithium-ion battery cells tend to lose some of their charge over time.

A researcher at Dalhousie has identified a surprisingly common culprit that, if replaced, could address an enduring problem for the industry.

“In commercial battery cells there is tape—like Scotch tape—that holds ...

Microplastics — tiny pieces of plastic less than 5 mm in length — are everywhere, from bottled water to food to air. According to recent estimates, people consume tens of thousands of these particles each year, with unknown health consequences. Now, researchers reporting in ACS’ Environmental Science & Technology found that people with inflammatory bowel disease (IBD) have more microplastics in their feces than healthy controls, suggesting that the fragments could be related to the disease process.

The prevalence of IBD, which includes ...

Tau PET brain imaging could launch precision medicine era for Alzheimer’s disease. Brain imaging of pathological tau-protein “tangles” reliably predicts the location of future brain atrophy in Alzheimer’s patients a year or more in advance, according to a new study by scientists at the UC San Francisco Memory and Aging Center...

Turmeric powder and roots. Turmeric contains curcumin, which has been shown to have anti-inflammatory and antioxidant properties. Credit: © pinkomelet / Fotolia

Twice-daily supplements boosted cognitive power over 18 months. Daily consumption of a certain form of curcumin improved memory and mood in people with mild, age-related memory loss, according to the results of a study conducted by UCLA researchers. The research, published online Jan. 19 in the American Journal of Geriatric Psychiatry, examined the effects of an easily absorbed curcumin supplement on memory performance in people without dementia, as well as curcumin’s potential impact on the microscopic plaques and tangles in the brains of people with Alzheimer’s disease.

Found in turmeric, curcumin has previously been shown to ha...