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Phys.org / Ammonia leaks can be spotted in under two seconds using new alveoli-inspired droplet sensor

Researchers from Guangxi University, China have developed a new gas sensor that detects ammonia with a record speed of 1.4 seconds. The sensor's design mimics the structure of alveoli—the tiny air sacs in human lungs—while ...

15 hours ago in Chemistry
Phys.org / Captured on camera for the first time: How tiny marsupials crawl to their mother's pouch

For the first time, scientists have recorded how baby dunnarts, tiny carnivorous marsupials from Australia, reach their mother's pouch not long after being born. While much is known about how many other marsupial babies go ...

16 hours ago in Biology
Medical Xpress / Single DMT dose treats stress-induced depression more effectively than Prozac in mice

Psychedelics are psychoactive substances that trigger unusual mental states, also referred to as "trips," altering the perceptions, thoughts, and emotions of those taking them and typically inducing hallucinations. Over the ...

17 hours ago in Psychology & Psychiatry
Phys.org / A familiar magnet gets stranger: Why cobalt's topological states could matter for spintronics

The element cobalt is considered a typical ferromagnet with no further secrets. However, an international team led by HZB researcher Dr. Jaime Sánchez-Barriga has now uncovered complex topological features in its electronic ...

10 hours ago in Physics
Phys.org / Antarctic magnetic anomaly is a trace of an ancient continental collision, scientists find

Geologists from St. Petersburg State University, as part of an international scientific team, have analyzed rock data from East Antarctica and determined that the magnetic anomaly in this region resulted from the convergence ...

5 hours ago in Earth
Phys.org / Saturn's moon Titan could have formed in a merger of two old moons

Recent research suggests that Saturn's bright rings and its largest moon, Titan, may have both originated in collisions among its moons. While Cassini's 13-year mission expanded our understanding of Saturn, the discoveries ...

10 hours ago in Astronomy & Space
Phys.org / Electronic friction can be tuned and switched off

Researchers in China have isolated the effects of electronic friction, showing for the first time how the subtle drag force it imparts at sliding interfaces can be controlled. They demonstrate that it can be tuned by applying ...

17 hours ago in Nanotechnology
Phys.org / Cell division spindles self-organize like active liquid crystals—a theory that holds up

When a cell divides, it performs a feat of microscopic choreography—duplicating its DNA and depositing it into two new cells. The spindle is the machinery behind that process: It latches onto chromosomes (where DNA is stored) ...

10 hours ago in Biology
Phys.org / NOvA maps neutrino oscillations over 500 miles with 10 years of data

Neutrinos are very small, neutral subatomic particles that rarely interact with ordinary matter and are thus sometimes referred to as ghost particles. There are three known types (i.e., flavors) of neutrinos, dubbed muon, ...

19 hours ago in Physics
Phys.org / Scientists reveal formation mechanism behind spherical assemblies of nanocrystals

From table salt to snowflakes, and from gemstones to diamonds—we encounter crystals everywhere in daily life, usually cubic (table salt) or hexagonal (snowflakes). Researchers from Noushine Shahidzadeh's group at the UvA ...

10 hours ago in Nanotechnology
Phys.org / Visualizing how a plant's leaves, stem and roots mutually communicate under environmental stress in real time

How do the different parts of an adult plant communicate with each other when it suffers an injury, is waterlogged, burnt or exposed to environmental stress? Today we can answer this question thanks to an innovative optical ...

10 hours ago in Biology
Medical Xpress / Minimally invasive surgery restores active dad's mobility

Stretching at the gym, AJ Starsiak felt an alarming pop in his back. Starsiak shrugged it off. An active 39-year-old father of two who plays softball and ice hockey, he was no stranger to minor injuries.

5 hours ago in Surgery