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Dec 1, 2022

Scientists discover a new mechanism to generate cartilage cells

Posted by in categories: biotech/medical, life extension

As any weekend warrior understands, cartilage injuries to joints such as knees, shoulders, and hips can prove extremely painful and debilitating. In addition, conditions that cause cartilage degeneration, like arthritis and temporomandibular joint disorder (TMJ), affect 350 million people in the world and cost the U.S. public health system more than $303 billion every year. Patients suffering from these conditions experience increased pain and discomfort over time.

However, an exciting study led by faculty at The Forsyth Institute suggests new strategies for making with huge implications in regenerative medicine for future cartilage injuries and degeneration treatments. In a paper, entitled “GATA3 mediates nonclassical β-catenin signaling in skeletal determination and ectopic chondrogenesis,” co-first authors Takamitsu Maruyama and Daigaku Hasegawa, and senior author Wei Hsu, describe two breakthrough discoveries, including a new understanding of a multifaced protein called β-catenin.

Dr. Hsu is a senior scientist at the Forsyth Insitute and a Professor of Developmental Biology at Harvard University. He is also an affiliate faculty member of the Harvard Stem Cell Institute. Other members conducting the study included Swiss scientists Tomas Valenta and Konrad Basler, and Canadian scientists Jody Haigh and Maxime Bouchard. The study appears in the most recent issue of Science Advances.

Dec 1, 2022

Urban foxes self-evolve, exhibiting Darwin’s domestication syndrome

Posted by in categories: evolution, futurism

Future pets!


A new study finds surprising evidence of the self-evolution of urban foxes.

Dec 1, 2022

Pregnancy causes dramatic changes in the brain, study confirms

Posted by in category: neuroscience

Pregnancy caused women to lose gray matter, and reshaped the brain’s “default mode network,” a set of brain regions that are most active when the brain is wandering.

Dec 1, 2022

Native American inventor Danielle Boyer combines tradition and innovation through robotics

Posted by in categories: education, robotics/AI

Danielle Boyer knew she was interested in robotics from a young age. But with limited learning resources — a problem many Native American students face — Boyer, who is Ojibwe, said she had to take things into her own hands.

She taught herself through watching YouTube videos, flipping through old electrical engineering books, examining maker kits on Amazon, and then “reverse engineering” everything.

Now, as the founder of the nonprofit The STEAM Connection, Boyer, 22, is on a mission to promote technical and cultural educational opportunities among Native American youth like herself — sometimes combining both in the form of robots that teach Indigenous languages, as they face risks of dying out.

Continue reading “Native American inventor Danielle Boyer combines tradition and innovation through robotics” »

Dec 1, 2022

Fusion power is ‘approaching’ reality thanks to a magnetic field breakthrough

Posted by in categories: energy, innovation

Fusion power may be a more realistic prospect than you think. As Motherboard reports, researchers at the Energy Department’s Lawrence Livermore National Laboratory have discovered that a new magnetic field setup more than tripled the energy output of the fusion reaction hotspot in experiments, “approaching” the level required for self-sustaining ignition in plasmas. The field was particularly effective at trapping heat within the hotspot, boosting the energy yield.

The hotspot’s creation involved blasting 200 lasers at a fusion fuel pellet made from hydrogen isotopes like deuterium and tritium. The resulting X-rays made the pellet implode and thus produce the extremely high pressures and heat needed for fusion. The team achieved their feat by wrapping a coil around a pellet made using special metals.

The notion of using magnets to heat the fuel isn’t new. University of Rochester scientists found they could use magnetism to their advantage in 2012. The Lawrence Livermore study was far more effective, however, producing 40 percent heat and more than three times the energy.

Dec 1, 2022

Physicists produce symmetry-protected Majorana edge modes on quantum computer

Posted by in categories: particle physics, quantum physics, robotics/AI

Physicists at Google Quantum AI have used their quantum computer to study a type of effective particle that is more resilient to environmental disturbances that can degrade quantum calculations. These effective particles, known as Majorana edge modes, form as a result of a collective excitation of multiple individual particles, like ocean waves form from the collective motions of water molecules. Majorana edge modes are of particular interest in quantum computing applications because they exhibit special symmetries that can protect the otherwise fragile quantum states from noise in the environment.

The condensed matter physicist Philip Anderson once wrote, “It is only slightly overstating the case to say that physics is the study of symmetry.” Indeed, studying and their relationship to underlying symmetries has been the main thrust of physics for centuries. Symmetries are simply statements about what transformations a system can undergo—such as a translation, rotation, or inversion through a mirror—and remain unchanged. They can simplify problems and elucidate underlying physical laws. And, as shown in the new research, symmetries can even prevent the seemingly inexorable quantum process of decoherence.

When running a calculation on a quantum computer, we typically want the quantum bits, or “qubits,” in the computer to be in a single, pure quantum state. But decoherence occurs when external electric fields or other environmental disturb these states by jumbling them up with other states to create undesirable states. If a state has a certain symmetry, then it could be possible to isolate it, effectively creating an island of stability that is impossible to mix with the other states that don’t also have the special symmetry. In this way, since the noise can no longer connect the symmetric state to the others, it could preserve the coherence of the state.

Dec 1, 2022

[ML News] GPT-4 Rumors | AI Mind Reading | Neuron Interaction Solved | AI Theorem Proving

Posted by in categories: media & arts, robotics/AI, supercomputing

Your weekly news from the AI & Machine Learning world.

OUTLINE:
0:00 — Introduction.
0:25 — AI reads brain signals to predict what you’re thinking.
3:00 — Closed-form solution for neuron interactions.
4:15 — GPT-4 rumors.
6:50 — Cerebras supercomputer.
7:45 — Meta releases metagenomics atlas.
9:15 — AI advances in theorem proving.
10:40 — Better diffusion models with expert denoisers.
12:00 — BLOOMZ & mT0
13:05 — ICLR reviewers going mad.
21:40 — Scaling Transformer inference.
22:10 — Infinite nature flythrough generation.
23:55 — Blazing fast denoising.
24:45 — Large-scale AI training with MultiRay.
25:30 — arXiv to include Hugging Face spaces.
26:10 — Multilingual Diffusion.
26:30 — Music source separation.
26:50 — Multilingual CLIP
27:20 — Drug response prediction.
27:50 — Helpful Things.

Continue reading “[ML News] GPT-4 Rumors | AI Mind Reading | Neuron Interaction Solved | AI Theorem Proving” »

Dec 1, 2022

MRNA vaccines offer one-two punch to combat malaria

Posted by in categories: biotech/medical, health

Malaria is found in more than 90 countries around the world, causing 241 million cases and an estimated 627,000 deaths every year. Vaccines are one intervention that could help eliminate this deadly disease, yet a highly effective vaccine remains elusive. Recent technological advances in vaccine development–such as the mRNA vaccines for SARS-CoV2–could lead to a new generation of malaria vaccines.

Now, a research team led by George Washington University has developed two mRNA candidates that are highly effective in reducing both and transmission. The team also found that the two experimental vaccines induced a powerful immune response regardless of whether they were given individually or in combination. The study was published today in npj Vaccines, an open-access that is part of the Nature Portfolio.

“Malaria elimination will not happen overnight but such vaccines could potentially banish from many parts of the world,” Nirbhay Kumar, a professor of global health at the George Washington University Milken Institute School of Public Health, said. “The mRNA vaccine technology can really be a game changer. We saw how successful this technology was in terms of fighting COVID and for this study we adapted it and used it to develop tools to combat malaria.”

Dec 1, 2022

China’s nuclear arsenal to triple by 2035? Country to expand nuclear warheads to 1500 | WION

Posted by in categories: military, nuclear weapons

The protests in China have had no impact on Beijing’s ambitions of world domination. On Tuesday, Chinese jets violated South Korea’s Air defence zone. A Pentagon report further claims China will have 1,500 nuclear warheads by 2035. Priyanka Sharma reports.

#Gravitas #China #Nuclear.

Continue reading “China’s nuclear arsenal to triple by 2035? Country to expand nuclear warheads to 1500 | WION” »

Dec 1, 2022

Dr. Jennifer Fogarty, Ph.D. — Baylor — Innovations To Safeguard Health & Performance In Deep Space

Posted by in categories: biotech/medical, engineering, government, health

Dr. Jennifer A. Fogarty, Ph.D. (https://www.bcm.edu/people-search/jennifer-fogarty-100936) is the Chief Scientific Officer for the Translational Research Institute for Space Health (TRISH — https://www.bcm.edu/academic-centers/space-medicine/translat…-institute) at Baylor College of Medicine, and the Director of the Applied Health and Performance at Sophic Synergistics LLC.

As Chief Scientist of TRISH, Dr. Fogarty leads an innovative and high-risk research and technology development portfolio to address the most challenging human health and performance risks of space exploration.

Continue reading “Dr. Jennifer Fogarty, Ph.D. — Baylor — Innovations To Safeguard Health & Performance In Deep Space” »

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