Engineers test drug transfer using placenta-on-a-chip

Researchers at the University of Pennsylvania's School of Engineering and Applied Science have demonstrated the feasibility of their "organ-on-a-chip" platform in studying how drugs are transported across the human placental ...

When it comes to extinction, body size matters

On a certain level, extinction is all about energy. Animals move over their surroundings like pacmen, chomping up resources to fuel their survival. If they gain a certain energy threshold, they reproduce, essentially earning ...

Mantis shrimp size each other up before giving up a fight

To a mantis shrimp, walking away from a fight doesn't mean being a wimp. It means recognizing who they're up against and knowing when to bail rather than drag out a doomed battle, Duke University researchers say.

Live fast die young: Updating signal detection theory

Signal Detection Theory is a popular and well-established idea that has influenced behavioral science for around 50 years. Essentially, the theory holds that in a predator-prey relationship, prey animals will show more wariness ...

A faster, less costly test detects foodborne toxin

One of the most common causes of food poisoning is the bacterium Staphylococcus aureus, which produces a wide range of toxins. One of these, staphylococcal enterotoxin type E (SEE), has been associated with outbreaks in the ...

Scientists report inhibition of cellular aging

Aging is the deterioration of a cell's ability to divide and grow as it gets older. This causes degradation of the body and age-related diseases. Prevention of aging is an instinctive desire of humans; thus, it is a task ...

page 3 from 19