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Blog – Page 28

Imagine a world where you can have private conversations in public spaces without headphones! Researchers at Penn State have developed a way to use ultrasonic beams and 3D-printed metasurfaces to create pockets of sound that are inaudible to others.

S the vision behind a new audio technology that creates “audible enclaves” using ultrasonic beams. ‘ + s how it works: Traditional sound waves, especially low-frequency ones, tend to spread out and can t just a neat trick. The technology covers a wide range of sounds, from deep bass tones (125 Hz) to higher frequencies (up to 4 kHz), ensuring clear audio across six octave bands. It s a futuristic approach to making sound personal, targeted, and unobtrusive.”

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A new study probing quantum phenomena in neurons as they transmit messages in the brain could provide fresh insight into how our brains function.

In this project, described in the Computational and Structural Biotechnology Journal, theoretical physicist Partha Ghose from the Tagore Centre for Natural Sciences and Philosophy in India, together with theoretical neuroscientist Dimitris Pinotsis from City St George’s, University of London and the MillerLab of MIT, proved that established equations describing the classical physics of brain responses are mathematically equivalent to equations describing quantum mechanics. Ghose and Pinotsis then derived a Schrödinger-like equation specifically for neurons.

Our brains process information via a vast network containing many millions of neurons, which can each send and receive chemical and electrical signals. Information is transmitted by nerve impulses that pass from one neuron to the next, thanks to a flow of ions across the neuron’s cell membrane. This results in an experimentally detectable change in electrical potential difference across the membrane known as the “action potential” or “spike”

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The device provides a range of sensations, such as vibrations, pressure, and twisting. A team of engineers led by Northwestern University has developed a new wearable device that stimulates the skin to deliver a range of complex sensations. This thin, flexible device gently adheres to the skin, offering more realistic and immersive sensory experiences. While it is well-suited for gaming and virtual reality (VR), the researchers also see potential applications in healthcare. For instance, the device could help individuals with visual impairments “feel” their surroundings or provide feedback to those with prosthetic limbs.

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In their ongoing efforts to push the boundaries of quantum possibilities, physicists in Arts & Sciences at Washington University in St. Louis have created a new type of “time crystal,” a novel phase of matter that defies common perceptions of motion and time.

The WashU research team includes Kater Murch, the Charles M. Hohenberg Professor of Physics, Chong Zu, an assistant professor of physics, and Zu’s graduate students Guanghui He, Ruotian “Reginald” Gong, Changyu Yao, and Zhongyuan Liu. Bingtian Ye from the Massachusetts Institute of Technology and Harvard University’s Norman Yao are also authors of the research, which has been published in the journal Physical Review X.

Zu, He, and Ye spoke about their achievement and the implications of catching time in a crystal.

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In a groundbreaking moment for cancer, Chinese researchers turned the immune response provoked by organ transplants to fight the leading cause of death worldwide.

According to Columbia University’s Department of Surgery, 10–20% of patients who undergo transplant surgery will experience at least one rejection. However, researchers in China ingeniously turned that negative into a positive by directing that powerful impulse to attack cancer cells.

Called a “tumor-to-pork” strategy, a new study published in Cell earlier this year demonstrated immense success in engineering a virus that tricked the human body into believing that cancer cells were pig tissue, according to the South China Morning Post, thereby triggering a hyperacute inflammatory response. The virus began attacking the tumor with a staggering 90% success rate, to the point of curing a patient with advanced cervical cancer.

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Quantum physics just took a leap from theory to reality! Empa researchers have, for the first time, successfully built a long-theorized one-dimensional alternating Heisenberg model using synthetic nanographenes.

By precisely shaping these tiny carbon structures, they’ve unlocked new ways to manipulate quantum states, confirming century-old predictions. This breakthrough could be a stepping stone toward real-world quantum technologies, from ultra-fast computing to unbreakable encryption.

Recreating a Century-Old Quantum Model.

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A strange energy source at the center of the Milky WayThe Milky Way is the galaxy that contains our Solar System and is part of the Local Group of galaxies. It is a barred spiral galaxy that contains an estimated 100–400 billion stars and has a diameter between 150,000 and 200,000 light-years. The name “Milky Way” comes from the appearance of the galaxy from Earth as a faint band of light that stretches across the night sky, resembling spilled milk. tabindex=0 Milky Way may be a new type of dark matter.

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