Study shows how a newly identified molecule stimulates the formation of new insulin-producing cells in zebrafish and mammalian tissue, through a novel mechanism for regulating protein synthesis.
Nuclear explosions helped scientists triangulate the rate and extent of the oscillation.
Scientists have long postulated that Earth’s core doesn’t just spin—it spins faster than the surface does. But in new research published last week in Science Advances, a pair of experts from the University of Southern California (USC) say the core travels more slowly than the outer surface of Earth, and even changes directions about every six years. This movement pattern indicates that Earth’s core actually oscillates, turning decades of science on its head.
“The inner core is not fixed—it’s moving under our feet, and it seems to going back and forth a couple of kilometers every six years,” John Vidale, a USC earthquake researcher involved in the new work, explains in a press release.
A diet of wild spinach and fresh milk helped her reach such an advanced age.
A combination of fresh milk and wild spinach has helped Johanna Mazibuko reach the ripe old age of 128.
The South African celebrated her birthday this week – and it is thought she could be the oldest person alive.
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We present Imagen, a text-to-image diffusion model with an unprecedented degree of photorealism and a deep level of language understanding. Imagen builds on the power of large transformer language models in understanding text and hinges on the strength of diffusion models in high-fidelity image generation. Our key discovery is that generic large language models (e.g. T5), pretrained on text-only corpora, are surprisingly effective at encoding text for image synthesis: increasing the size of the language model in Imagen boosts both sample fidelity and image-text alignment much more than increasing the size of the image diffusion model. Imagen achieves a new state-of-the-art FID score of 7.27 on the COCO dataset, without ever training on COCO, and human raters find Imagen samples to be on par with the COCO data itself in image-text alignment. To assess text-to-image models in greater depth, we introduce DrawBench, a comprehensive and challenging benchmark for text-to-image models. With DrawBench, we compare Imagen with recent methods including VQ-GAN+CLIP, Latent Diffusion Models, and DALL-E 2, and find that human raters prefer Imagen over other models in side-by-side comparisons, both in terms of sample quality and image-text alignment.
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Continue reading “The Bomb you Should Worry About | 3 Ways” »
Investments by Hanwha Group and the potential passage of the Solar Energy Manufacturing Act could expand US production of polysilicon and metallurgical-grade silicon.
From pv magazine USA
REC Silicon and Ferroglobe have signed a memorandum of understanding (MOU) to develop an end-to-end US solar supply chain from raw silicon, to polysilicon, and finally fully assembled modules. Recent investment into REC Silicon by the Hanwha Group, in conjunction with Hanwha’s subsidiary Qcells, was the impetus for the MOU.
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Earth’s magnetic poles are just experiencing a “soft spot” that will probably disappear in a few hundred years.
In new research, scientists walk back the popular idea that Earth’s magnetic poles will flip at some point soon—an event that would occur for the first time in tens of thousands of years. And while it wouldn’t be the end of the world by any means, it would complicate a lot of things for us. All of that means it’s good news that we likely won’t see a flip for at least a few hundred more years.
In the new paper, published last week in the Proceedings of the National Academy of Sciences, researchers from Lund University in Sweden and Oregon State University identify some of Earth’s current magnetic anomalies and position them in the larger context of the last 9,000 years. Amazingly, we have pretty complete magnetic field data over that entire period. But to understand what’s going on, first we should take a crash course in Earth’s magnetic field.
Continue reading “Scientists Dispel Popular Theory That Earth’s Magnetic Poles Will Flip” »
