#Concerns over police head injuries

“#Concerns over police head injuries” Head injuries may be worryingly common among police officers, according to a new pilot study led by the University of Exeter. In a sample of 54 UK officers, 21 (38.9%) reported having suffered a “traumatic brain injury” (TBI) resulting in a loss of consciousness in their lives. This proportion is…

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#Scientists suggest using gold nanoparticle metasurfaces to determine substance molecular composition

“#Scientists suggest using gold nanoparticle metasurfaces to determine substance molecular composition” Gold Particles Credit: Dmitry Bayer A new method will make it possible to create compact devices that will accurately determine molecular composition of a liquid or gas, and help identify potentially dangerous chemical compounds. The results of the work carried out by researchers from…

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#Brazil’s Bolsonaro under pressure to protect Amazon

“#Brazil’s Bolsonaro under pressure to protect Amazon” Brazilian farmer Helio Lombardo Do Santos walks through a burned area of the Amazon rainforest near Porto Velho, Rondonia state on August 26, 2019 Faced with investors demanding “results” in the fight against Amazon deforestation, Brazil’s government seems to be performing something of an about-face, although it will…

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#China moves rocket into place for upcoming Mars mission

“#China moves rocket into place for upcoming Mars mission” In this Thursday, Nov. 14, 2019 file photo, a Mars lander is lifted during a test for its hovering, obstacle avoidance and deceleration capabilities at a facility at Huailai in China’s Hebei province. The site outside Beijing simulated conditions on the red planet, where the pull…

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#Ecuadorian hummingbirds chirp ultrasonic songs of seduction

“#Ecuadorian hummingbirds chirp ultrasonic songs of seduction” This 2018 photo provided by Paolo David Escobar shows a male Hillstar hummingbird perched on a Chuquiraga jussieui flower in Ecuador. A study released on Friday, July 17, 2020 finds that the species of hummingbirds can sing and hear frequencies beyond the range of other birds. The unusually…

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