搜索结果：JMIR research protocols

Wavelength and intensity in the infrared are translated into colors in the visible

Researchers fear AI is moving too fast, while Mark Zuckerberg is worried about who owns it。 Plus: Inside Black Forest Labs’ push into robotics

Ant parenting may have evolved from the same brain systems that once controlled hunger。 Researchers found that two chemical signals push clonal raider ants toward either caring for larvae or leaving to forage, with the balance changing as the ants grow older。 Similar signals are involved in mammalian caregiving, suggesting that evolution may have f

A person’s sleeping brain may reveal warning signs of dementia long before memory problems begin。 Researchers used machine learning to analyze EEG recordings from about 7,000 adults and found that an older-than-expected “brain age” was tied to a sharply higher dementia risk。 Every additional 10 years of brain aging raised that risk by nearly 40%

Astronomers may have been listening for alien civilizations in only a small slice of the radio spectrum while overlooking a largely unexplored range of higher frequencies。 Using archived data from the ALMA telescope in Chile, researchers conducted the observatory’s first SETI survey, searching for narrow signals that could indicate advanced technol

Scientists have uncovered new evidence that Venus may still be tearing itself apart from within。 Advanced 3D simulations indicate that some of the planet's giant rift valleys formed relatively recently and could still be expanding。 The results suggest Venus has a far more active interior than researchers once believed, challenging the long-held vie

A new cooking method could make French fries crispier in less time while significantly limiting how much oil they absorb。 Researchers propose combining microwave heating, which keeps oil out, with conventional frying, which provides the crunch consumers expect

Researchers discovered a proton-assisted mechanism that greatly improves how triplet energy moves between quantum dots and nearby molecules。 The proton briefly shifts position, helps coordinate electron movement, and then returns to where it started。 This quantum-driven shuttle could offer a powerful new way to tune solar cells, lasers, and catalyt

Primordial black holes may occasionally pass through white dwarf stars and trigger enormous Type Ia supernova explosions。 Researchers found that these events could explain chemical patterns seen in supernova remnants, nearby explosions, and stars across the Milky Way

Researchers have uncovered a possible biological pathway connecting obesity to Alzheimer’s disease。 Obesity appears to raise levels of certain fat molecules that can travel to the brain, disrupt its immune defenses, and promote harmful amyloid buildup。 Correcting this fat imbalance improved memory and brain function in Alzheimer’s models

New research challenges the decades-old idea that children experience an “adiposity rebound” when their BMI begins rising around age 6。 Although BMI returns to earlier levels, a more reliable measure showed that body fat does not rebound at all。 The increase appears to come from growing muscle and lean tissue as children prepare for later growth

A surprisingly simple change could make sodium-ion batteries far more powerful while opening the door to turning seawater into drinking water。 Researchers at the University of Surrey found that sodium vanadium oxide performs much better when its naturally occurring water is left inside instead of being removed during manufacturing

Keeping a regular daily schedule may help reduce pain and depression, especially among older adults with insomnia。 Researchers found that consistent times for waking, eating, socializing, and sleeping were linked to better well-being regardless of sleep quality。 These routines may strengthen the body’s internal clock and limit the disruptive effect

More than 150 years after Darwin’s finches helped reshape biology, Galápagos plants are exposing another evolutionary surprise。 Giant daisies repeatedly developed similar heat-tolerant leaf shapes, but each lineage used a different combination of genes。 Researchers also found major genetic differences among isolated populations, suggesting new spec

Sweden could become an important source of rare earth elements needed for magnets and green technologies。 Instead of extracting one target metal, researchers are cataloging everything contained in Swedish mineral deposits。 They will then develop magnets using those naturally available combinations, potentially reducing pollution, waste, and relianc

Physicists have uncovered a surprising limit to electrical resistance caused by particles colliding。 Using ultracold potassium atoms trapped in a grid of light, researchers created a highly controlled stand-in for electrons moving through a solid。 As collisions became more frequent and intense, resistance initially rose, but eventually hit a ceilin

Deep beneath submarine volcanoes, Earth may be running a natural “gold kitchen。” By analyzing volcanic glass from the Kermadec island arc north of New Zealand, researchers found that water-rich mantle repeatedly melts beneath subduction zones, gradually concentrating gold in rising magma。 The process works because intense melting breaks down sulfur

The Backrooms began as a single eerie image of empty yellow rooms, but internet users transformed it into a vast fictional world that feels disturbingly real。 Through videos, games, maps, survival guides and social media stories, audiences do more than watch the horror unfold。 They help build and explore it