Scientists have unlocked a revolutionary way to generate proton beams using high-powered lasers and a simple stream of water.
Unlike conventional methods requiring large, costly accelerators, this approach uses laser-plasma accelerators to produce ultra-fast proton beams in a compact space.
“ tabindex=”0” KAIST researchers have discovered a molecular switch that can revert cancer cells back to normal by capturing the critical transition state before full cancer development. Using a computational gene network model based on single-cell RNA
Ribonucleic acid (RNA) is a polymeric molecule similar to DNA that is essential in various biological roles in coding, decoding, regulation and expression of genes. Both are nucleic acids, but unlike DNA, RNA is single-stranded. An RNA strand has a backbone made of alternating sugar (ribose) and phosphate groups. Attached to each sugar is one of four bases—adenine (A), uracil (U), cytosine ©, or guanine (G). Different types of RNA exist in the cell: messenger RNA (mRNA), ribosomal RNA (rRNA), and transfer RNA (tRNA).
Scientists have detected cosmic waves that sound like birds chirping in an unexpected place.
These bursts of plasma, called chorus waves, ripple at the same frequency as human hearing. When converted to audio signals, their sharp notes mimic high-pitched bird calls.
Researchers have captured such sounds in space before, but now they have sensed the chirping waves from much farther away: over 62,000 miles (100,000 kilometers) from Earth, where they’ve never been measured before.
For the first time, scientists have demonstrated that negative refraction can be achieved using atomic arrays—without the need for artificially manufactured metamaterials.
Scientists have long sought to control light in ways that appear to defy the laws of nature.
Negative refraction—a phenomenon where light bends in the opposite direction to its usual behavior—has captivated researchers for its potential to revolutionize optics, enabling transformative technologies such as superlenses and cloaking devices.
What if love could be programmed? AI companions are here, offering customizable relationships tailored to your every desire. From apps like Replika to futuristic VR partners, we explore the rise of AI girlfriends and their potential to redefine how we connect. Could this technology solve loneliness—or destroy real human relationships? And what would a world without women look like, with just AI partners and baby incubators? Dive into this provocative discussion and share your thoughts below!
#AIGirlfriends #FutureOfLove #AICompanions #DigitalRelationships #TechAndSociety #AIInnovation #VirtualReality #LonelinessSolutions #MenAndTech #EthicalAI
This Collection invites multidisciplinary groups to submit their research in Generative Artificial Intelligence for aging research and drug discovery.
Every year, more than 5 million people in the USA are diagnosed with heart valve disease, but this condition has no effective long-term treatment. When a person’s heart valve is severely damaged by a birth defect, lifestyle, or aging, blood flow is disrupted. If left untreated, there can be fatal complications.
Valve replacement and repair are the only methods of managing severe valvular heart disease, but both often require repeated surgeries that are expensive, disruptive, and life-threatening. Most replacement valves are made of animal tissue and last up to 10 or 15 years before they must be replaced. For pediatric patients, solutions are extremely limited and can require multiple reinterventions.
Now, Georgia Tech researchers have created a 3D-printed heart valve made of bioresorbable materials and designed to fit an individual patient’s unique anatomy. Once implanted, the valves will be absorbed by the body and replaced by new tissue that will perform the function that the device once served.
A study has found that the cortex acts like a ‘memory machine’, encoding new experiences and predicting the near future, helping to differentiate between novel and old information.
Terahertz radiation (THz), electromagnetic radiation with frequencies ranging from 0.1 and 10 THz, is central to the functioning of various technologies, including imaging, sensing and spectroscopy tools. While THz radiation waves have been manipulated in different ways over the past decades, controlling their direction in air has so far remained a challenge.
Researchers at Ecole Polytechnique (CNRS) at Institut Polytechnique de Paris recently demonstrated the steering of laser-produced THz radiation in air, using a recently introduced technique dubbed “flying focus.” Their paper, published in Physical Review Letters, could open new possibilities for the manipulation of THz electromagnetic waves, which could in turn be leveraged to develop new technologies.
“My group has been working on the generation of THz radiation by laser-induced filaments in air for almost 20 years,” Aurélien Houard, senior author of the paper, told Phys.org. “A major advantage of these filaments is that they can be generated at a large distance from the laser in the atmosphere. However, the THz emission remained confined close to the laser axis, which is not convenient for remote detection.”
An international team of astronomers has investigated a newly detected Type II supernova designated SN 2024jlf. The new study, detailed in a paper published Jan. 30 on the arXiv pre-print server, yields important information regarding the evolution of this supernova and the nature of its progenitor.
Type II supernovae (SNe) are the results of rapid collapse and violent explosion of massive stars (with masses above 8.0 solar masses). They are distinguished from other SNe by the presence of hydrogen in their spectra.
Based on the shape of their light curves, they are usually divided into Type IIL and Type IIP. Type IIL SNe show a steady (linear) decline after the explosion, while Type IIP exhibit a period of slower decline (a plateau) that is followed by a normal decay.
