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| As we develop, the brain connects lessons learned differently Posted: 15 Nov 2021 12:10 PM PST A new study of brain activity patterns in people doing a memory task finds that the way we make inferences -- finding hidden connections between different experiences -- changes dramatically as we age. The study's findings might one day lead to personalized learning strategies based on a person's cognitive and brain development. The researchers found that whereas adults build integrated memories with inferences already baked in, children and adolescents create separate memories that they later compare to make inferences on the fly. |
| Trees on the move: Researchers reveal how wildfire accelerates forest changes Posted: 15 Nov 2021 12:10 PM PST As climate conditions change, tree species are shifting their ranges. Wildfire is accelerating this process, likely by reducing competition from established species -- a finding that raises questions about how to manage land in an era of shifting ecosystems. |
| Africa's 'Green Wall' also makes economic sense Posted: 15 Nov 2021 12:10 PM PST Fifteen years ago, the African Union decided on an ambitious program: degraded ecosystems in parts of the Sahel are to be successively restored in order to secure food for the people living there and to protect the soil against further degradation. At the same time, the African Great Green Wall is an important contribution to combating climate change. A study now shows that it also makes economic sense - although not everywhere in the Sahel. |
| Nascent polypeptides stabilize ribosomes for uninterrupted translation Posted: 15 Nov 2021 12:10 PM PST Protein production (translation) is a complex process involving machinery called ribosomes. How do cells counter ribosomal destabilization leading to premature termination of translation? Scientists have uncovered a novel role of nascent protein chains in stabilizing translating ribosomes. They suggest that longer peptide sequences spanning the ribosomal exit tunnel and bulky amino acid residues in the tunnel entry help stabilize the ribosome by bridging its subunits, ensuring uninterrupted translation. |
| Carbon dioxide cold traps on the moon are confirmed for the first time Posted: 15 Nov 2021 12:10 PM PST After decades of uncertainty, researchers have confirmed the existence of lunar carbon dioxide cold traps that could potentially contain solid carbon dioxide. The discovery will likely have a major influence in shaping future lunar missions and could impact the feasibility of a sustained robot or human presence on the moon. |
| Researchers discover new insights about tau proteins in people living with ALS Posted: 15 Nov 2021 09:35 AM PST Investigators found elevated levels of tau and a phosphorylated form of the tau protein in brain tissue from deceased people who had amyotrophic lateral sclerosis (ALS) and carried a mutation in the C9orf72 gene. The team also identified new genetic mutations in the tau gene that may exacerbate ALS onset or progression. Tau in the cerebrospinal fluid may be a viable biomarker for ALS because levels correlate with disease progression. |
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