observed

"Researchers proposed various emission mechanisms, but none have convincingly explained the observed patterns," he said.

Philosophers, going back to Plato and Aristotle, have observed a link between comedy and cruelty.

"The power of mathematics is that we can devise models that reproduce experimentally observed data and make concrete predictions about what will happen next," Karamched said.

According to the researchers, reactions in conventional materials are only observed directly at the point where force is applied, while only weak or negligible effects can be identified at distant locations in the material.

The researchers also observed several racial, economic, and age-related disparities among the patients who used emergency care multiple times during their pregnancy.