There is reason to believe, the researchers write, that this trend may be occurring in other states.

In recent years, however, a contrary trend has occurred.

And the same trends are occurring in much of the rest of the world.

"Similar trends may be occurring in other cities," the centers said.

But no general trend has occurred at all, at least in the usual sense.

Every expert has an opinion, it seems, about why the trend is occurring.

It is a common assumption that similar trends occur in many disciplines at one time.

Another trend was occurring at the same time - the rise of the homelessness issue.

The same trend occurred in France as one of the top ten in the early twentieth century, has come to be at position 20.

These trends usually occur in fashion, technology, or business.