These new studies cannot explain the results obtained by these other methods.

A later study in 1987 further explained their previous findings.

The study explained why joblessness can continue to grow even as the economy is rebounding.

The study in Nature could explain it: they may be overwhelmingly dark matter.

The studies may also explain why the south tower, struck second, fell first.

Yet another study on cannabinoids published last year may explain why marijuana makes people feel good.

But the studies, while tantalizing, have not yet explained why there is a connection.

We need more detailed studies to confirm and explain the association.

A 2010 study explained size differences among them as sexual dimorphism.

Nor have studies explained why, if someone cannot get a job, he turns to crime and drug abuse.