Statistical test relates pathogen mutation to infectious disease progression

Ryosuke Omori and Jianhong Wu develop an inductive algorithm to study site-specific nucleotide frequencies using a multi-strain susceptible-infective-removed (SIR) model to better understand infectious disease epistemology, pathogen evolution, and population dynamics. Credit: Wikimedia Commons. Nucleic acid sequencing methods, which determine the order of nucleotides in DNA fragments, are rapidly progressing. These processes yield large quantities…

Scientists explain how the process of erosion forms unusual shapes and structures

Credit: Skolkovo Institute of Science and Technology Scientists at Skolkovo Institute of Science and Technology have determined through mathematical modeling that the process of erosion optimizes the shapes of disintegrating materials. Natural wind and water erosion often creates spectacular landforms such as natural arches and bridges, balanced pillars and domes. The national parks of Utah…