作者:Madsen, Peter T.; Siebert, Ursula; Elemans, Coen P. H.
作者单位:Aarhus University; University of Veterinary Medicine Hannover; University of Southern Denmark
摘要:Echolocating toothed whales (odontocetes) capture fast-moving prey in dark marine environments, which critically depends on their ability to generate powerful, ultrasonic clicks. How their supposedly air-driven sound source can produce biosonar clicks at depths of >1000 meters, while also producing rich vocal repertoires to mediate complex social communication, remains unknown. We show that odontocetes possess a sound production system based on air driven through nasal passages that is functio...
作者:Venkatraman, Vijaysree
作者:Haap, Wolfgang
摘要:Small-molecule libraries encoded by peptide tags may accelerate the search for therapeutics
作者:Stokstad, Erik
摘要:A creative strategy to keep crops healthy borrows key pathogen detectors from the animal immune system
作者:Bacik, Karol A.; Bacik, Bogdan S.; Rogers, Tim
作者单位:University of Bath; Akademia Wychowania Fizycznego im. Jerzego Kukuczki w Katowicach
摘要:Laning is a paradigmatic example of spontaneous organization in active two-component flows that has been observed in diverse contexts, including pedestrian traffic, driven colloids, complex plasmas, and molecular transport. We introduce a kinetic theory that elucidates the physical origins of laning and quantifies the propensity for lane nucleation in a given physical system. Our theory is valid in the low-density regime, and it makes different predictions about situations in which lanes may f...