Showing 20 articles starting at article 141
< Previous 20 articles Next 20 articles >
Categories: Biology: Zoology, Physics: Optics
Published Single atoms show their true color



A new technique reveals single atom misfits and could help design better semiconductors used in modern and future electronics.
Published Pasteurization inactivates highly infectious avian flu in milk, study suggests



Researchers found no infectious virus in the sampled pasteurized milk products tested for H5N1.
Published Blue and great tits deploy surprisingly powerful memories to find food



Blue and great tits recall what they have eaten in the past, where they found the food and when they found it, a new study shows. In the first experiment of its kind to involve wild animals, blue and great tits demonstrated 'episodic-like' memory to cope with changes in food availability when foraging. The same study may suggest that humans leaving out seeds and nuts for garden birds could be contributing to the evolution of these memory traits.
Published Giant salamander-like creature was a top predator in the ice age before the dinosaurs



Meet Gaiasia jennyae, the swamp creature with a toilet seat-shaped head. It lived 40 million years before the first dinosaurs, and it was the top predator in its ecosystem.
Published Using visible light to make pharmaceutical building blocks



Chemists have discovered a way to use visible light to synthesize a class of compounds particularly well suited for use in pharmaceuticals. The class of compounds, called azetidines, had been previously identified as a good candidate to build therapeutic drugs, but the compounds are difficult to produce in chemical reactions. Now, a team has developed a method to produce a specific class of azetidines called monocyclic azetidines using visible light and a photocatalyst.
Published Precise and less expensive 3D printing of complex, high-resolution structures



Researchers have developed a new two-photon polymerization technique that uses two lasers to 3D print complex high-resolution structures. The advance could make this 3D printing process less expensive, helping it find wider use in a variety of applications, from consumer electronics to the biomedical field.
Published Giant clams may hold the answers to making solar energy more efficient



Solar panel and biorefinery designers could learn a thing or two from iridescent giant clams living near tropical coral reefs, according to a new study. This is because giant clams have precise geometries -- dynamic, vertical columns of photosynthetic receptors covered by a thin, light-scattering layer -- that may just make them the most efficient solar energy systems on Earth.
Published Nuclear spectroscopy breakthrough could rewrite the fundamental constants of nature



Raising the energy state of an atom's nucleus using a laser, or exciting it, would enable development of the most accurate atomic clocks ever to exist. This has been hard to do because electrons, which surround the nucleus, react easily with light, increasing the amount of light needed to reach the nucleus. By causing the electrons to bond with fluorine in a transparent crystal, UCLA physicists have finally succeeded in exciting the neutrons in a thorium atom's nucleus using a moderate amount of laser light. This accomplishment means that measurements of time, gravity and other fields that are currently performed using atomic electrons can be made with orders of magnitude higher accuracy.
Published Optoelectronics gain spin control from chiral perovskites and III-V semiconductors



A research effort has made advances that could enable a broader range of currently unimagined optoelectronic devices.
Published Light targets cells for death and triggers immune response with laser precision



A new method of precisely targeting troublesome cells for death using light could unlock new understanding of and treatments for cancer and inflammatory diseases.
Published Ocean acidification turns fish off coral reefs



A new study of coral reefs in Papua New Guinea shows ocean acidification simplifies coral structure, making crucial habitat less appealing to certain fish species.
Published Genetic patterns of world's farmed, domesticated foxes revealed via historical deep-dive



Domesticated animals play a prominent role in our society, with two-thirds of American families enjoying the companionship of pets and many others relying on animal products for their nutritional needs. But the process of domestication remains a bit of a mystery.
Published Researchers identify unique survival strategies adopted by fish in the world's warmest waters



A team of researchers have identified unexpected ways coral reef fish living in the warmest waters on earth, in the Arabian Gulf, have adapted to survive extreme temperatures.
Published 'World record' for data transmission speed



Researchers have sent data at a record rate of 402 terabits per second using commercially available optical fiber. This beats their previous record, announced in March 2024, of 301 terabits or 301,000,000 megabits per second using a single, standard optical fiber.
Published New computational microscopy technique provides more direct route to crisp images



A new computational microscopy technique solves for true high-resolution images without the guesswork that has limited the precision of other techniques.
Published New model could help provide expectant mothers a clearer path to safe fish consumption



Research creates a framework to better balance the nutritional benefit of fish consumption with the risk of mercury exposure to the developing brain.
Published Light-controlled artificial maple seeds could monitor the environment even in hard-to-reach locations



Researchers have developed a tiny robot replicating the aerial dance of falling maple seeds. In the future, this robot could be used for real-time environmental monitoring or delivery of small samples even in inaccessible terrain such as deserts, mountains or cliffs, or the open sea. This technology could be a game changer for fields such as search-and-rescue, endangered species studies, or infrastructure monitoring.
Published New mathematical model sheds light on the absence of breastfeeding in male mammals



Mathematicians ave put forward a hypothesis which suggests that the reason male mammals don't breastfeed might be driven by the rich community of microbes that lives in breast milk and which plays an important part in establishing the gut microbiome of the infant.
Published Common plastics could passively cool and heat buildings with the seasons



By restricting radiant heat flows between buildings and their environment to specific wavelengths, coatings engineered from common materials can achieve energy savings and thermal comfort that goes beyond what traditional building envelopes can achieve.
Published Pacific cod can't rely on coastal safe havens for protection during marine heat waves



During recent periods of unusually warm water in the Gulf of Alaska, young Pacific cod in near shore safe havens where they typically spend their adolescence did not experience the protective effects those areas typically provide, a new study found.