Researchers have developed a new technique to evaluate human stem cells using cell micropatterning -- a simple but powerful in vitro tool that will enable scientists to study the initiation of ...

Biodiversity is dynamic: in many ecosystems, population sizes fluctuate — sometimes strongly — over time. Simulation: fluctuating growth, limits from interactions, and a steady trickle of immigration ...

Complex systems – from ecosystems and power grids to supply chains and social networks – can sometimes collapse or surge unexpectedly after minor disturbances. Why do some systems collapse suddenly ...

Why do some systems collapse suddenly after what seems like a minor disturbance? A single transmission line failure can cascade into widespread blackouts. A delayed shipment can ripple through a ...