NASA is developing autonomous space robots to build shelters, solar arrays, and more on the moon and Mars.
Oregon State University scientists studying ways to filter greenhouse gases from the air recently discovered that when molecules of the metal vanadium are bound with oxygen molecules as peroxide, they can pull carbon dioxide from the air. The carbon molecules can be siphoned off using a small amount of energy that’s then funneled into other uses, like making limestone for buildings or enhancing the atmospheric carbon in greenhouses, accelerating plant growth.
The process could help improve nascent technologies in capturing carbon dioxide from the air to slow the impacts of global climate change. The discovery was published in the journal of the Royal Society of Chemistry in December.
Carbon dioxide is responsible for about two-thirds of the atmospheric heating causing global climate change, and it is primarily released in the burning of fossil fuels for energy, according to the National Oceanic and Atmospheric Administration.
In an observational study, noninvasive respiratory support was associated with disease slowing for ALS patients, regardless of stage or site of onset.
Alpha ketoglutarate, or AKG, has long been used as a dietary supplement in the bodybuilding world.
By satisfying bioenergetic demands, generating biomass, and providing metabolites serving as cofactors for chromatin modifiers, metabolism regulates adult stem cell biology. Here, we report that a branch of glycolysis, the serine biosynthesis pathway (SBP), is activated in regenerating muscle stem cells (MuSCs). Gene inactivation and metabolomics revealed that Psat1, one of the three SBP enzymes, controls MuSC activation and expansion of myogenic progenitors through production of the metabolite α-ketoglutarate (α-KG) and α-KG-generated glutamine. Psat1 ablation resulted in defective expansion of MuSCs and impaired regeneration. Psat1, α-KG, and glutamine were reduced in MuSCs of old mice. α-KG or glutamine re-established appropriate muscle regeneration of adult conditional Psat1 -/- mice and of old mice. These findings contribute insights into the metabolic role of Psat1 during muscle regeneration and suggest α-KG and glutamine as potential therapeutic interventions to ameliorate muscle regeneration during aging.
Keywords: aging; glutamine; ketoglutarate; muscle regeneration; muscle stem cells.
Published by cold spring harbor laboratory press.
Covering the latest scientific breakthroughs and innovations that are shaping the world.
A research team led by Prof. Meng Guowen and Prof. Han Fangming from the Hefei Institutes of Physical Science of the Chinese Academy of Sciences, together with Prof. Wei Bingqing from the University of Delaware, miniaturized line-filtering capacitors with “matryoshka doll” structure electrodes, providing a high-performance and space-saving solution for line-filtering applications.
The Tesla FSD V12.3 performs well in snowy conditions, demonstrating good acceleration, braking, and handling capabilities, as well as safety features such as pausing at intersections without stop signs.
Questions to inspire discussion.
How does the Tesla FSD V12.3 perform in snowy conditions?
—The Tesla FSD V12.3 performs well in snowy conditions, demonstrating good acceleration, braking, and handling capabilities.
A new research paper has discovered the usefulness of DRAM cache for GPUs which can help enable higher performance at low power.
Researchers Propose The Use Of Dedicated DRAM Caches Onto Newly-Built SCMs For GPUs, Replacing Conventional HBM Configuration
The GPU industry, which involves consumer, workstation, and AI GPUs, is proceeding in a way that we are seeing advancements in memory capacities and bandwidth, but it isn’t sustainable, and ultimately, we could hit the limits if an innovative approach isn’t taken.
The advanced artificial intelligence model powering Copilot’s Pro tier wasn’t free to all until now.
SpaceX’s president and COO has one priority for the next test-flight: ‘getting reentry right.’