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Wednesday 17 April 2019

New research offers solution to riddle of ocean carbon storage

However, researchers have identified that this process—the biological gravitational pump (BGP) - cannot account for all of the carbon reaching the deep ocean, and a range of additional pathways that inject a much wider range of particles have been explored.

* This article was originally published here

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YouTube's Notre Dame-9/11 flub highlights AI's blind spots

YouTube might need a few more humans. The machines whose job is to tamp down conspiracy theories are not cutting it just yet.

* This article was originally published here

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New software aims to reduce variability in ELISA biomarker tests

A new computational approach has been developed to reduce variability in common research biomarker tests, a promising step in improving the ability of biomedical researchers and basic scientists to reproduce data and facilitate more consistent results across laboratories and long-term projects. Researchers from Boston Medical Center (BMC) and Boston University School of Medicine (BUSM), developed a new software program, called ELISAtools, which provides a stable platform to compare data from research-use-only assay kits and minimize variability over months or even years. The results were published online in PLOS One.

* This article was originally published here

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Fundamentally new MRI method developed to measure brain function in milliseconds

The speed of the human brain is remarkable—in a fraction of a second, neurons are activated, propagating thoughts and reactions to stimuli. But the speed at which we can noninvasively follow brain function using an MRI is not as impressive. Functional MRI (fMRI), which measures changes in blood oxygen levels, has revolutionized the field of neuroscience by revealing functional aspects of the brain. But the changes that fMRI is sensitive to can take up to six seconds in humans—a veritable eon in brain time. Investigators from Brigham and Women's Hospital, in collaboration with colleagues at King's College London and INSERM-Paris, have discovered a fundamentally new way to measure brain function using a technology known as magnetic resonance elastography (MRE), an approach that creates maps of tissue stiffness using an MRI scanner. In a paper published in Science Advances, the team presents data from preclinical studies indicating that the technique can track brain function activity on a time scale of 100 milliseconds. Studies of the technique in human participants are now underway.

* This article was originally published here