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Autonomous vehicles move passengers without human intervention. Modelling suggests that autonomous taxis could reduce transport… Expand In this paper, we consider spatial predator–prey models with diffusion and prey-taxis. We investigate necessary conditions for… Expand Spatially-distributed populations of various types of bacteria often display intricate spatial patterns that are thought to… Expand Motile microorganisms rapidly respond to changes in various physico-chemical gradients by directing their motility to more… Expand Many aquatic animals face a fundamental problem during foraging and migratory movements: while their resources commonly vary at… Expand The existing taxi dispatch system that taxi operators in Singapore use to handle current bookings was studied. This dispatch… Expand Campylobacter jejuni constitutes the leading cause of bacterial gastroenteritis in the United States and a major cause of… Expand Bacteria migrate away from an acid pH and from a number of chemicals, including organic acids such as acetate; the basis for… Expand Several methods for detecting or measuring negative chemotaxis are described. Using these, we have surveyed a number of chemicals… Expand Using a quantitative assay for measuring chemotaxis, we tested a variety of sugars and sugar derivatives for their ability to… Expand