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Phys.org / Not-so-model behavior: Popular software tools may give faulty forecasts
Some of the models used to forecast everything from financial trends to animal populations in an ecosystem are incorrect, according to an Idaho State University statistician.
Phys.org / Entanglement swapping using sum-frequency generation between single photons demonstrated for first time
The National Institute of Information and Communications Technology (NICT) has successfully demonstrated entanglement swapping (one of the key quantum communication protocols) using sum-frequency generation (SFG) between ...
Phys.org / Northern lights may be visible in parts of the US due to solar storms
Solar storms may bring colorful auroras to several northern U.S. states Thursday night.
Phys.org / In the US, Western rivers may be allies in the fight against climate change
For decades, scientists have generally thought that rivers emit more carbon dioxide, a greenhouse gas, than they take in. But a new analysis of every river network in the contiguous United States—including underrepresented ...
Phys.org / Space dust reveals Arctic ice conditions before satellite imaging
Arctic sea ice has declined by more than 42% since 1979, when regular satellite monitoring began. As the ice grows thinner and recedes, more water is exposed to sunlight. Ice reflects sunlight but dark water absorbs it, advancing ...
Phys.org / The enzyme that doesn't act like one: NUDT5 controls DNA building block production through structure, not catalysis
Inside every cell, a finely tuned metabolic network determines when to build, recycle, or stop producing essential molecules. A central part of this network is folate metabolism, a process that provides vital chemical units ...
Tech Xplore / Fake or the real thing? How AI can make it harder to trust the pictures we see
A new study has revealed that artificial intelligence can now generate images of real people that are virtually impossible to tell apart from genuine photographs.
Phys.org / Compact laser system shows 80% efficiency for ultrashort light pulses is possible
Lasers that emit extremely short light pulses are highly precise and are used in manufacturing, medical applications, and research. The problem: efficient short-pulse lasers require a lot of space and are expensive.
Phys.org / Illegal shark fin trade persists despite protections
Despite more than a decade of international efforts to curb the trade of threatened shark species, new research led by FIU marine biologist Diego Cardeñosa and Demian Chapman, director of the Shark and Rays Conservation ...
Medical Xpress / Sexual dysfunction in women at midlife explored by largest study of its kind
Almost 50% of women in midlife surveyed in a Monash University-led study had poor sexual well-being, including a doubling of the likelihood of desire and arousal dysfunction in early perimenopausal women from premenopause.
Phys.org / Digital map increases Roman Empire road network by 100,000 kilometers
A new high resolution digital dataset and map—named Itiner-e—of roads throughout the Roman Empire around the year 150 CE is presented in research published in Scientific Data. The findings increase the known length of ...
Medical Xpress / FDA warns 18 websites for selling fake Botox linked to injuries
U.S. regulators have issued warnings to 18 websites that were selling fake or unapproved versions of Botox and similar wrinkle-relaxing injections.
