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Published Spinning up control: Propeller shape helps direct nanoparticles
(via sciencedaily.com) Original source Self-propelled nanoparticles could potentially advance drug delivery and lab-on-a-chip systems -- but they are prone to go rogue with random, directionless movements. Now, an international team of researchers has developed an approach to rein in the synthetic particles.
Published Artificial intelligence systems excel at imitation, but not innovation
(via sciencedaily.com) Original source Artificial intelligence (AI) systems are often depicted as sentient agents poised to overshadow the human mind. But AI lacks the crucial human ability of innovation, researchers have found.
Published Whale-SETI: Groundbreaking encounter with humpback whales reveals potential for nonhuman intelligence communication
(via sciencedaily.com) Original source A team of scientists had a close encounter with a non-human (aquatic) intelligence. The Whale-SETI team has been studying humpback whale communication systems in an effort to develop intelligence filters for the search for extraterrestrial intelligence. In response to a recorded humpback 'contact' call played into the sea via an underwater speaker, a humpback whale named Twain approached and circled the team's boat, while responding in a conversational style to the whale 'greeting signal.' During the 20-minute exchange, Twain responded to each playback call and matched the interval variations between each signal.
Published Single-use e-cigarettes contain batteries that last hundreds of cycles despite being discarded
(via sciencedaily.com) Original source While the lithium-ion batteries in disposable electronic cigarettes are discarded after a single use, they can continue to perform at high capacity for hundreds of cycles, according to a new study. The analysis highlights a growing environmental threat from these increasingly popular vape pens, which are not designed to be recharged.
Published Heavy metals in our food are most dangerous for kids
(via sciencedaily.com) Original source Two new studies provide information on the correlation between exposure to heavy metals in food and the risk of cancers and other serious health risks.
Published Why the long face? Scientists solve a major puzzle in mammal skull shape evolution
(via sciencedaily.com) Original source Horses have developed long faces simply 'because they can,' a team of evolutionary biologists say. In a major review of how mammalian heads evolve, scientists found that adaptations to feeding explain why large species of mammals often have much longer faces compared to smaller closely related species -- a pattern referred to as Craniofacial Evolutionary Allometry (CREA).
Published Migratory bats can detect Earth's magnetic field
(via sciencedaily.com) Original source Pipistrelle bats have a magnetic compass and calibrate it at sunset, according to a new study. An international team of researchers has used behavioral experiments to show that two different components of the Earth's magnetic field influence the orientation of these animals. Like birds, they seem to be sensitive to magnetic inclination.
Published Daily singing workout keeps songbird males attractive
(via sciencedaily.com) Original source It has long been a mystery why songbirds spend so much time and energy on singing. Now a new study shows that songbirds need to sing every day to keep their vocal muscles in shape. Females can hear if a male has skipped his singing workout for only a few days, and they prefer song of males that did their daily vocal gymnastics.
Published The configuration of green spaces in cities determines the characteristics of their birds
(via sciencedaily.com) Original source An international study has analyzed the distribution of 115 species of birds in spring and 72 that spend the winter in different cities. The study provides information on how to design urban areas that favor biodiversity and public wellbeing.
Published How a drought led to the rise of skateboarding in 1970s California
(via sciencedaily.com) Original source Why did professional skateboarding arise in southern California in the 1970s? Was it a coincidence, or was it a perfect storm of multiple factors? It's fairly well-known that a drought in southern California in the mid-1970s led to a ban on filling backyard swimming pools, and these empty pools became playgrounds for freestyle skateboarders in the greater Los Angeles area. But a new cross-disciplinary study shows that beyond the drought, it was the entanglement of environmental, economic and technological factors that led to the explosive rise of professional skateboarding culture in the 1970s.
Published A new brew: Evaluating the flavor of roasted, lab-grown coffee cells
(via sciencedaily.com) Original source It may soon be time to wake up and smell the lab-grown coffee made from cultured plant cells. But it's not clear whether drinks from this product replicate coffee beans' complex flavors. Now, a study found that some of the comforting aromas and tastes of a conventional cup of coffee could be reproduced by roasting and brewing coffee cell cultures.
Published New study sheds light on how much methane is produced from Arctic lakes and wetlands
(via sciencedaily.com) Original source New study looked at lakes in the Arctic, including those at Alaska's Yukon Flats National Wildlife Refuge, to shed light on how much methane is produced from Arctic lakes and wetlands. Small unmapped lakes in the Arctic are far less abundant than previously thought, greatly reducing the cumulative methane emissions they were thought to contribute to Earth's atmosphere.
Published This Japanese 'dragon' terrorized ancient seas
(via sciencedaily.com) Original source Researchers have described a Japanese mosasaur the size of a great white shark that terrorized Pacific seas 72 million years ago. The mosasaur was named for the place where it was found, Wakayama Prefecture. Researchers call it the Wakayama Soryu, which means blue dragon.
Published In a new light -- new approach overcomes long-standing limitations in optics
(via sciencedaily.com) Original source When you look up at the sky and see clouds of wondrous shapes, or struggle to peer through dense, hazy fog, you're seeing the results of 'Mie scattering', which is what happens with light interacts with particles of a certain size. There is a growing body of research that aims to manipulate this phenomenon and make possible an array of exciting technologies. Researchers have now developed a new means of manipulating Mie scattering from nanostructures.
Published Underwater architects: The 'burrowing effect' of foraminifera on marine environments
(via sciencedaily.com) Original source Impact of single-cell organisms on sediment oxygen levels and bacterial diversity measured for the first time.
Published Extremely rare bird captured on film
(via sciencedaily.com) Original source A striking and extremely rare half-female, half-male bird has been spotted by a zoologist.
Published Extreme rainfall increases ag nutrient runoff, conservation strategies can help
(via sciencedaily.com) Original source Nutrient runoff from agricultural production is a significant source of water pollution in the U.S., and climate change that produces extreme weather events is likely to exacerbate the problem. A new study looks at how extreme rainfall impacts runoff and suggests possible mitigation strategies.
Published 'Energy droughts' in wind and solar can last nearly a week
(via sciencedaily.com) Original source Understanding the risk of compound energy droughts -- times when the sun doesn't shine and the wind doesn't blow -- will help grid planners understand where energy storage is needed most.
Published Clinical trial demonstrates that the ketogenic diet is effective at controlling polycystic kidney disease
(via sciencedaily.com) Original source It's official: The ketogenic diet proved to be effective at controlling polycystic kidney disease (PKD) in the first randomized controlled clinical trial of ketogenic metabolic therapy for PKD.
Published A new mechanism by which rotavirus makes you sick
(via sciencedaily.com) Original source Scientists report a new mechanism by which rotavirus induces diarrhea by interfering with the normal absorption of nutrients in the intestine.