Marking a first in reproductive science. The process involved transferring skin cell nuclei into donated eggs and stimulating them to behave like natural oocytes, some of which developed into early embryos in the lab. While none progressed beyond a few days and major safety hurdles remain, the study suggests a future path that could one day help women with infertility and expand options in reproductive medicine.
#science #medicine #genetics #fertility #research
As the weather grows cold this winter, you may be one of the many Americans pulling their winter jackets out of the closet. Not only can this extra layer keep you warm on a chilly day, but modern winter jackets are also a testament to centuries-old physics and cutting-edge materials science.
Winter jackets keep you warm by managing heat through the three classical modes of heat transfer —conduction, convection and radiation—all while remaining breathable so sweat can escape.
The physics has been around for centuries, yet modern material innovations represent a leap forward that let those principles shine.
From the tragedy of the space shuttle Columbia disaster in 2003 to the now-routine return of commercial spacecraft, heat shields—formally called thermal protection systems—are critical for protecting vehicles from the intense heat and friction of atmospheric reentry or traveling at many times the speed of sound.
Now, a team of engineers at Sandia National Laboratories have developed ways to rapidly evaluate new thermal protection materials for hypersonic vehicles. Their three-year research project combined computer modeling, laboratory experiments and flight testing to better understand how heat shields behave under extreme temperatures and pressures, and to predict their performance much faster than before.
Hypersonic flight means traveling at speeds of at least five times faster than the speed of sound, or more than 3,800 miles per hour. Other vehicles, such as ballistic missiles, can travel this fast, but hypersonic vehicles are far more maneuverable and unpredictable, making them harder to intercept. Unlike reusable spacecraft, the thermal protection systems used on U.S. hypersonic missiles—which solely deliver conventional weapons—are designed for a single use.
Until AlphaFold’s debut in November 2020, DeepMind had been best known for teaching an artificial intelligence to beat human champions at the ancient game of Go. Then it started playing something more serious, aiming its deep learning algorithms at one of the most difficult problems in modern science: protein folding. The result was AlphaFold2, a system capable of predicting the three-dimensional shape of proteins with atomic accuracy.
Its work culminated in the compilation of a database that now contains over 200 million predicted structures, essentially the entire known protein universe, and is used by nearly 3.5 million researchers in 190 countries around the world. The Nature article published in 2021 describing the algorithm has been cited 40,000 times to date. Last year, AlphaFold 3 arrived, extending the capabilities of artificial intelligence to DNA, RNA, and drugs. That transition is not without challenges—such as “structural hallucinations” in the disordered regions of proteins—but it marks a step toward the future.
To understand what the next five years holds for AlphaFold, WIRED spoke with Pushmeet Kohli, vice president of research at DeepMind and architect of its AI for Science division.
Dive into the remarkable world of bioprinting in this comprehensive video. We’ll be exploring the core concepts of bioprinting — a pioneering technique that uses biological materials to create structures that mimic natural tissues, organs, and even cells. Understand the sophisticated science behind this process, and learn how bio-inks are formulated and layered to build live cells. We’ll also embark on a historical journey, tracing the origins and evolution of bioprinting, and how it is reshaping modern medicine. From overcoming organ shortages to paving the way for personalized treatments, bioprinting is revolutionizing healthcare. Join us as we unpack this fascinating technology and its promising future.
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Star Trek brought us so much scifi tech that we have been waiting to see come to life and one of the biggest dreams of all is teleportation! To boldly go… to the other side of the world without an 18 hour flight!
This is the second episode in a series about Scifi Tech we’ll never have…soz!
Today we’ll talk about matter vs information, how quantum teleportation actually works, how much information a human body contains, how we would measure that information and transfer it and ultimately, that it all comes down to an identity crisis.
Chapters:
00:00 Introduction.
02:32 For the love of scifi.
07:20 Quantum information.
11:46 Quantum teleportation.
16:19 The human factor.
20:20 Heisenberg compensators.
22:13 The measurement destruction problem.
24:15 The timing problem.
25:53 The data problem.
30:58 The unavoidable energy cost.
33:11 The identity question.
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In this video, Whitney, a registered dental hygienist, breaks down the viral headlines about a “tooth regrowth shot” being tested in Japan. She explains the real science behind the drug — how it targets the USAG-1 protein to potentially reactivate dormant tooth buds — and clears up common misconceptions about tooth regeneration research. From animal trials to current human safety studies, Whitney dives into what’s fact, what’s hype, and what this breakthrough could mean for the future of dentistry.
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