Control theory: Mother nature is an engineer

In the last 150 years, engineers have developed and mastered ways to stabilize dynamic systems, without lag or overshoot, using what's known as control theory. Now, a team of University of Arizona researchers has shown that ...

Parasites affect host responses to environmental change

Ignoring the role of parasites may lead to a misinterpretation of organism responses to environmental change, according to an Innovative Viewpoints article by ecologists from the University of Georgia. Their paper, "To improve ...

Catching fast changes in excited molecules

It's hard to see certain molecules react. The reaction is just that fast. Until now. A team of scientists devised a way to reveal time- and energy-resolved information on "dark" states of molecules—ones that are normally ...

Applying a network perspective to human physiology

In modern medicine, physicians treat organs in isolation. People with heart conditions go to heart specialists, just as those with kidney ailments seek kidney specialists. While this model has made tremendous progress and ...

Improvised dance embodies complexities of social decisions

A work of art evolves from a series of decisions, as an artist combines brushstrokes, dance steps or musical notes to convey a feeling or idea. When a group of interacting dancers improvises a performance from a repertoire ...

Freezing upon heating: Formation of dynamical glass

The discovery of superconductivity and its experimental realization are two of the most important advancements in physics and engineering of the past century. Nevertheless, their statistical and dynamical characteristics ...

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