Company
Phys.org is a science news site in the Science X network, covering physics, biology, earth science, and medicine research.
Max Planck and Hannover researchers report strong light-sound coupling in a 4 K optical fiber, with no optical or mechanical resonator. The Nature Physics paper is a proof of concept for a prerequisite to fiber quantum buffers and converters.
Reality
University of Sydney PhD student Daniel Irving classified almost 800 million Martian locations into 2,000 soil classes, called areths. The scheme is labelled provisional, and its plant-growth ranking still awaits tests on Earth and checks by rover.
Reality
University of Kentucky researchers found essential-oil cockroach sprays killed over 96% on direct contact, but most dried residues killed under 10%. The Scientific Reports study aged residues on ceramic tile and pine wood for up to a month.
Reality
Researchers testing 118 people found guesses about strangers' tastes were more accurate when the strangers differed more from the guesser. Participants still started from their own ratings, and Phys.org calls the result surprising.
Reality
Melbourne-led modeling in One Earth finds a 20-fold rise in lithium-ion battery demand by 2050 would lift supply-chain emissions tenfold. Cleaner production alone could not contain that growth, the authors found, so they want policy to reach battery size and lifetime.
Reality
Researchers led by Université de Montréal found 45 people from Montreal's Notre-Dame Cemetery consistent with 100% European ancestry, mostly French. The result tests accounts of settler-Indigenous mixing in New France, for one burial ground only.
Reality
Two IPC PAS studies used light-activated catalysts and ultrasound to make drug-research compounds at 54% and over 97% selectivity. Both are laboratory proofs of concept, and the diapocynin route's yield was 33%.
Reality
Biologists at four US universities found identical genetic changes in jellyfish lineages separated by more than 600 million years. Most did not track the eyes and other traits that also evolved repeatedly, the authors report.
Reality
Kyoto University researchers report an Fe-4Ni-0.6C steel with nearly 140% uniform elongation, reached by activating twinning and martensite in sequence. The study suggests metals have much greater capacity for uniform deformation than previously believed, Phys.org reported.
Reality
European XFEL researchers report record intensity and fluence for hard-X-ray attosecond pulses, above 10^20 watts per square centimeter. The beam was focused to 180 by 330 nanometers, about 100,000 times smaller than a hair's cross section.
Reality
Manitoba and Bamfield researchers detected cortisol in North Pacific spiny dogfish blood, a hormone sharks were long thought not to make. The paper covers one species, and its experiments used groups of five or six sharks.
Reality
Flinders University researchers resampled replanted sites over six years and found different parts of the soil fungal community recover at different rates. Vegetation, the usual yardstick of replanting, does not automatically show soil recovery, the Flinders researchers warn.
Reality
Ice cloud tops over mountains rose and cooled 2 to 4 times faster than over adjacent lowlands in 2003 to 2022 satellite data, Eos reports. The paper tracked cloud properties, so any effect on mountain water supply is untested.
Reality
Simulations of the El Gordo collision, over two quadrillion solar masses, fit two-state self-interacting dark matter better than noninteracting dark matter. Phys.org's account calls the result a possible solution, not a definite one.
Reality
Thale cress missing parts of the DREAM complex made too little of the gene MER3 and had severely reduced fertility, a Science Advances study found. The findings may point to a conserved fertility mechanism, Phys.org reported, but the work covers one plant.
Reality
Ryuta Kuwamizu's team reports in iScience that young adults' pupils dilated while counting aloud in all three experiments. Silent counting always produced smaller pupil changes, and their direction depended on the task.
Reality
Katie Field's team reports in Current Biology that Arabidopsis, a mustard-family model plant, forms a two-way nutrient exchange with an MFRE fungus. Phys.org's account describes no food-crop or field trial, so the step to Brassica crops remains a proposal.
Reality
In 275 interviews and about 330 hours of observation at one firm, a management scholar found colleagues more open after it went mostly remote. The study covers a single professional services company, so it documents one case.
Reality
Social media bans for minors, weighed or in force in more than 20 countries, may not improve mental health, a digital media researcher argues on Phys.org. It sets the bans beside more than $17 billion in settlements and payouts by YouTube and Meta since March.
Reality
Several of 13 adolescents with obesity told Lund University researchers that school bullying interventions were aimed at them. The interviews, published in Acta Paediatrica, describe experience and do not measure how common it is.
Reality