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ScienceDaily: Most Popular News |
| NASA's Webb Telescope reaches major milestone as mirror unfolds Posted: 08 Jan 2022 11:27 AM PST NASA's James Webb Space Telescope team fully deployed its 21-foot, gold-coated primary mirror, successfully completing the final stage of all major spacecraft deployments to prepare for science operations. |
| Study sets framework for precision surveillance of colorectal cancer Posted: 07 Jan 2022 12:21 PM PST A team of researchers has revealed some of the mechanisms by which polyps develop into colorectal cancer, setting the framework for improved surveillance for the cancer utilizing precision medicine. Their study describes findings from a single-cell transcriptomic and imaging atlas of the two most common colorectal polyps found in humans: conventional adenomas and serrated polyps. |
| Novel brainstem circuit gives rise to the rhythms of vocalization Posted: 07 Jan 2022 12:21 PM PST The vocal sounds of humans -- laughing, crying, and the babbling of babies -- have the same rhythmic quality as the sounds made by many mammals, songbirds, and even some species of fish. Researchers have discovered that a small cluster of neurons in the brain stem not only regulates tempo but also coordinates vocalization with breathing. |
| Anxiety and PTSD linked to increased myelin in brain's gray matter Posted: 07 Jan 2022 05:44 AM PST Scientists have shown in both anxious rats and military veterans with PTSD that acute stress is associated with increased myelination of axons in areas of the brain associated with memory and emotions. These areas in the brain's gray matter are normally only lightly myelinated. Since myelin speeds communication in the brain, the increased myelination may be making some neural circuits hyperresponsive to memories of trauma. |
| Sunshield successfully deploys on NASA's next flagship telescope Posted: 05 Jan 2022 02:41 PM PST The James Webb Space Telescope team has fully deployed the spacecraft's 70-foot sunshield, a key milestone in preparing it for science operations. |
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