Macquarie University is a public research university in Sydney, Australia, known for research across sciences, humanities and engineering.
Apate, an Australian startup, says its AI decoy victims have held 2.5 million scam conversations and wasted 17 years of scammers' time. Divided out, that is about 3.6 minutes a conversation, so customers are buying the details the agents extract.
Reality
Macquarie and UNSW researchers report in PNAS that the 2 mm honey bee stinger is a double-piston micro-pump with continuous venom flow. The valve geometry would explain a detached stinger's delivery; the tests were in gel and a 3D-printed model.
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Macquarie University researchers used high-speed video to show that a honey bee's 2-millimeter stinger pumps venom with two collapsible pistons. Each lancet carries a valve, and the pair pump in opposite directions to give a continuous flow.
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Macquarie University researchers sorted brolga feathers collected from 2009 to 2023 into two genetic clusters, Victorian and northern. Simulations of population bottlenecks put the southern group, fewer than 1,000 adults, at higher risk of losing genetic diversity.
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The mud stopper excavated at Saqqara in the 1940s is lost, and so is the glass plate. The reading now rests on a scan of the one surviving print, and on two of the four royal emblems in a single row of signs.
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Two mandatory psychology units lost their in-person classes this semester and kept their fee, which makes Macquarie an early read on whether students will pay the same money for teaching a machine now handles.
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Zoos have bred short-beaked echidnas before, but repeated attempts at a dedicated research colony failed. Oliver Griffith's group at Macquarie has now reared a pouch baby, which is the precondition for sampling monotreme reproduction on a schedule.
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Direct measurements at the Beijing Meteorological Tower found trees supplied a tenth of VOC emissions but nearly half the reactivity that drives ozone, almost all of it isoprene.
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A KIMS-led team reports an antimony perovskite that responds to ammonia in 13 seconds at 100 ppm, plus a mechanism that is intercalation rather than surface adsorption.
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