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en-usLatest news from SIAM Journal on Mathematical AnalysisA model for Bluetongue disease dynamics in cattleIn a paper recently published in the SIAM Journal on Mathematical Analysis, authors Stephen Gourley, Gergely Röst, and Horst Thieme model disease persistence of a virus called Bluetongue using a system of several delay differential equations. The disease affects sheep and cattle, and is spread by biting midges. In sheep, the bluetongue virus can cause abortion, congenital abnormalities and death, though mild cases completely recover. In cattle, bluetongue does not generally cause death.
http://phys.org/news/2014-07-bluetongue-disease-dynamics-cattle.html
Mathematics Thu, 03 Jul 2014 05:20:01 EDTnews323582005Mathematically modeling species dispersalDispersal is an ecological process involving the movement of an organism or multiple organisms away from their birth site to another location or population where they settle and reproduce. An important topic in ecology and evolutionary biology, dispersal can either be random or directed. Random movement, as the name indicates, describes dispersal patterns that are unbiased and random, whereas directed or biased movement occurs when organisms sense and respond to local environmental cues by moving directionally. Dispersal is dependent on a variety of factors such as climate, food, and predators, and is often biased.
http://phys.org/news/2014-07-mathematically-species-dispersal.html
Mathematics Thu, 03 Jul 2014 05:10:02 EDTnews323581912Predicting burglary patterns through math modeling of crimePattern formation in physical, biological, and sociological systems has been studied for many years. Despite the fact that these subject areas are completely diverse, the mathematics that describes underlying patterns in these systems can be surprisingly similar. Mathematical tools can be used to study such systems and predict their patterns.
http://phys.org/news/2012-05-burglary-patterns-math-crime.html
Mathematics Thu, 31 May 2012 14:38:46 EDTnews257693843