1.  And someone came up with scientific means of preventing pregnancies.

2.  By no means scientific, such rankings often reflect more the perception of a school than its reality.

3.  Researchers at Penn State University are involved in an effort to outwit cockroaches through scientific means.

4.  The ACS has been in the works for years as a better scientific means of surveying America.

5.  Using scientific means, statisticians would use that sample to estimate the size and demographic characteristics of those houses that failed to return the forms.

6.  Vets turn to scientific means to help panda pair.