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Published How neighboring whale families learn each other's vocal style
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Researchers have developed a method to investigate sperm whale communication by determining their vocal style, finding that groups living in close proximity can develop similar styles to each other.
Published How did sabre-toothed tigers acquire their long upper canine teeth?
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In a groundbreaking study an international team of scientists has investigated the evolutionary patterns behind the development of sabre teeth, with some unexpected results along the way.
Published To sound like a hockey player, speak like a Canadian
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Hockey players are famous for their distinctive jargon, but while researching this phenomenon, a linguist and hockey player realized another interesting pattern in hockey speech: American hockey players adopted aspects of Canadian English pronunciations. Their pseudo-Canadian accent might be a mechanism for the Americans to indicate their identity as hockey players in a sport heavily dominated by Canadians.
Published Spider silk sound system
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Researchers have investigated how spiders listen to their environments through webs and found that the webs match the acoustic particle velocity for a wide range of sound frequencies. Playing sound ranging from 1 Hz to 50 kHz for the spiders and measuring the spider silk motion with a laser vibrometer, they found the sound-induced velocity of the silk was the same as the particles in the air surrounding it. This confirmed the mechanism that these spiders use to detect their prey.
Published Building a better sarcasm detector
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Sarcasm is notoriously tricky to convey through text, and the subtle changes in tone that convey sarcasm often confuse computer algorithms as well, limiting virtual assistants and content analysis tools. So researchers have now developed a multimodal algorithm for improved sarcasm detection that examines multiple aspects of audio recordings for increased accuracy. They used two complementary approaches -- sentiment analysis using text and emotion recognition using audio -- for a more complete picture.
Published Natural toxins in food: Many people are not aware of the health risks
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Many people are concerned about residues of chemicals, contaminants or microplastics in their food. However, it is less well known that many foods also contain toxins of completely natural origin. These are often chemical compounds that plants use to ward off predators such as insects or microorganisms. These substances are found in beans and potatoes, for example, and can pose potential health risks.
Published To optimize guide-dog robots, first listen to the visually impaired
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What features does a robotic guide dog need? Ask the blind, say researchers. A new study identifies how to develop robot guide dogs with insights from guide dog users and trainers.
Published More efficient bioethanol production might be possible using persimmon tannin to help yeast thrive
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Researchers have found that persimmon tannin, known for its antioxidant properties, improves the growth of yeast in the presence of ethanol.
Published Study reveals consumers value animal welfare more than environmental sustainability when buying meat and dairy products
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The treatment of animals rates higher than green issues when consumers choose meat and dairy products. That's according to a new study, which suggests that while consumers consider sustainability important, other factors such as taste, quality, and animal welfare take precedence in their purchasing decisions.
Published Wind farms can offset their emissions within two years
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After spinning for under two years, a wind farm can offset the carbon emissions generated across its entire 30-year lifespan, when compared to thermal power plants.
Published Shedding light on perovskite hydrides using a new deposition technique
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Perovskite hydrides are promising materials for various emerging energy technologies, but measuring their intrinsic hydride-ion conductivity is difficult. In a recent study, researchers address this issue using a novel laser deposition technique in an H-radical atmosphere. Using this approach, they grew thin-film single crystals of two different perovskite hydrides and characterized their hydride-ion conductivity. These efforts will bolster research on hydrogen-related materials.
Published 'Forever chemicals' found to rain down on all five Great Lakes
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Perfluoroalkyl and polyfluoroalkyl substances, also known as PFAS or 'forever chemicals,' have become persistent pollutants in the air, water and soil. Because they are so stable, they can be transported throughout the water cycle, making their way into drinking water sources and precipitation. Precipitation introduces similar amounts of PFAS into each of the Great Lakes; however, the lakes eliminate the chemicals at different rates.
Published Bioengineered enzyme creates natural vanillin from plants in one step
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Vanilla, the most widely used flavoring compound in confectionaries and cosmetics, gets its sweet flavor and aroma from the chemical compound -- 'vanillin'. However, the large-scale production of natural vanillin is impeded by the lack of microbial processes and enzymes which can commercially generate vanillin. Now, researchers have genetically engineered a novel enzyme which can convert ferulic acid from plant waste into vanillin in a one-step sustainable process.
Published Regenerating worms have genetic control over their algal partners
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Researchers have found a genetic pathway that facilitates inter-species communication between a marine worm, acoel, and its symbiotic algae.
Published Jet-propelled sea creatures could improve ocean robotics
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Scientists have discovered that colonies of gelatinous sea animals swim through the ocean in giant corkscrew shapes using coordinated jet propulsion, an unusual kind of locomotion that could inspire new designs for efficient underwater vehicles.
Published Climate change likely to aggravate brain conditions
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Climate change, and its effects on weather patterns and adverse weather events, is likely to negatively affect the health of people with brain conditions, argue a team of researchers.
Published What is the carbon footprint of a house in Japan?
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Researchers conducted a comprehensive analysis on the carbon footprint of constructing a wooden house in Japan. The team found that the estimated carbon footprint of a house in Japan is 38 tons of CO2, with the largest share coming from the electric power sector at 32% of all emissions. Other sectors included were pig iron production at 12% of total emissions; cement, road freight transport, and private power generation each covering 7%.
Published From roots to resilience: investigating the vital role of microbes in coastal plant health
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Understanding how salt marsh grass stays healthy is of crucial ecological importance, and studying the ways bacteria interact with these plants is key. Thanks to recent advances in genomic technology, biologists have begun to reveal never-before-seen ecological processes.
Published Carbon-capture batteries developed to store renewable energy, help climate
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Researchers are developing battery technologies to fight climate change in two ways, by expanding the use of renewable energy and capturing airborne carbon dioxide. Researchers recently created and tested two different formulations for batteries that store renewable energy; when the energy is later used, an electrochemical reaction converts industrial carbon dioxide emissions into a solid form that has the potential to be used in other products.
Published Temperature, time and blueberry wine
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Nutrient-rich blueberries -- a common breakfast smoothie ingredient -- can also create wine. But does the heat and time required to ferment this mighty berry strip out any of those potential health-promoting compounds? Researchers examine fermentation's effects on the bioactive compounds and antioxidant activity in blueberry wine. The results suggest blueberry wine maintains some of the fruit's nutrients and the team identifies ways to optimize components in this superfood tipple.