These changes may interfere with brain activity that suppresses pain.

VOA: special.2011.05.03

These changes, however,will not take effect for nine months.

VOA: special.2009.05.22

Scientists can tell when these changes happened.

VOA: special.2010.02.02

This is the first global conference that aims to tackle the problems that result from climate change and devise strategies to help nations adapt to these changes.

VOA: standard.2009.08.31

Later studies showed these nerves are made of a protein that changes so it sticks together in groups.

VOA: special.2009.09.15

Over long periods of time, these small changes result in the creation of new species.

VOA: special.2009.12.01

Instead,these experts say, our planet is experiencing a normal series of temperature changes.

VOA: special.2010.01.19

which advocates the values of tolerance and equality, was designed,in part, to push public acceptance of these economic changes.

VOA: standard.2010.02.24

Mbai says these proposed changes are similar to laws in other countries, including neighboring Malaysia and Singapore.

VOA: standard.2009.09.10

"So somehow it was a surprise that there is already in adolescents these kinds of changes."

VOA: standard.2010.03.04

However,given that there is at least some evidence for positive effects from some of these lifestyle changes, plus other benefits apparently unrelated to cognitive decline, Burke offered some recommendations.

VOA: standard.2010.06.17