Articles by Andrew Zinin
Phys.org / A hummingbird's brilliant magenta feathers depend on a hidden middle layer
The brilliant magenta feathers on the head and throat of a male Anna's hummingbird present an optical puzzle. Magenta cannot be produced by a single wavelength of light. Instead, the feathers reflect a mixture of red and ...
Medical Xpress / Normal-looking sleep can mask memory problems, study suggests
A new mouse study that set out to test how sleep helps stabilize new memories has identified cells that may offer a genetic target for accessing circuits implicated in cognitive disorders. Researchers led by Min Xu and Wanling ...
Tech Xplore / Robot hand learns nimble moves with fewer dropped objects
Manipulating an object with one hand is a balancing act. Fingers must release and renew their grip while keeping the object from slipping away, even with the palm facing downward.
Medical Xpress / Engineered probiotic senses inflammation and helps repair the gut in mice
Inflammatory bowel disease damages the lining that separates the gut's contents from the rest of the body. Calming the inflammation is only part of the treatment challenge, however—that protective barrier also needs to heal.
Phys.org / A tiny shift exposes a cold brown dwarf masquerading as an early galaxy
A faint red object spotted by the James Webb Space Telescope originally appeared to offer a possible glimpse of the universe's first galaxies. But images taken about 3½ years apart revealed a giveaway: The object, nicknamed ...
Medical Xpress / A single protein that helps drive responses to touch, temperature, pain and itch could offer a new drug target
A light brush, a hot surface and an irritating itch all activate different sensory pathways, yet researchers have determined that, in mice, these otherwise distinct responses share a molecular helper. A team led by Bailong ...
Phys.org / A CRISPR gene boost reduces seizures and strengthens muscles in mice
Some genetic diseases leave cells without a crucial protein. One possible treatment is to persuade genes already inside those cells to work harder, but the necessary machinery can be difficult to deliver, especially when ...
Phys.org / A smart window grows a silver shield to keep sunlight's heat out
A window can admit welcome daylight but also let in unwanted heat, taxing air conditioning systems. Darkening the glass helps control glare, but the absorption of sunlight warms it. An ideal window would block more incoming ...
Phys.org / Heavy hydrogen in 3I/ATLAS's methane points to a frigid birthplace
The interstellar comet 3I/ATLAS carries a chemical clue to conditions in the planetary system of its origin, locked away long before it reached our sun. Its methane signature is unusually rich in heavy hydrogen, suggesting ...
Tech Xplore / Electrolyte redesign unlocks tin's full charge capacity for flow batteries
Tin is able to exchange four electrons as it changes between dissolved ions and solid metal, but acidic tin batteries commonly use only a two-electron reaction, leaving half that potential charge out of reach. Now, researchers ...
Tech Xplore / AI often passes for human, but asking follow-up questions can trip it up
Reading a conversation and deciding whether a chatbot wrote it can be surprisingly difficult. In a study involving more than 72,000 judgments of human and AI responses, participants frequently mistook machine-generated captions, ...
Tech Xplore / Artificial skin helps robots grasp pencil lead and pull away from needles
Researchers have covered robotic fingers with a new artificial skin that allows the hand to grasp fragile pencil lead and pull away from a needle before it punctures the covering. Both actions depend on more than sensitive ...
Phys.org / FAST and Arecibo point to possible dark galaxy with vast hydrogen reservoir
Astronomers have found a vast reservoir of hydrogen with something conspicuously missing: detectable starlight. The object, called AGC 322753, contains roughly 2 billion times the sun's mass in neutral hydrogen, a potential ...
Phys.org / A few seconds of loading time can push online learners off track
An online lesson takes an extra second to load. The wait may seem trivial, but in a study examining large learning platforms, these brief pauses were linked to unfinished assignments, lower scores and less time spent on ...
Phys.org / DNA programs a cell-free material to build its own motors and move
Researchers have created a material that manufactures the proteins responsible for cell movement, without needing intact living cells. By embedding cell-free gene expression into a thin sheet of protein filaments, they were ...