But he said the nation must not forget the near-collapse of the banking system in two thousand eight without fixing its causes.

VOA: special.2010.04.16

But Congress has put more into the budget of the national park system in the past three years.

VOA: special.2009.09.28

Professor Gaechter says social order in general can be explained as a system in which individuals behave cooperatively and follow social rules.

VOA: special.2009.03.03

But he hopes to raise billions through a system in which businesses that release greenhouse gases would buy and trade pollution permits.

VOA: special.2009.02.27

President Obama has signed legislation to make the biggest changes in the health care system in forty-five years.

VOA: special.2010.03.24

The Northwestern University researcher took part in a study that found a way to turn off the immune system in mice with arthritis.

VOA: special.2010.03.16

For example, the Great Barrier Reef in Australia is the largest coral reef system in the world.

VOA: special.2009.04.22

The W.H.O.has an influenza warning system in which phase six means that a pandemic is taking place.

VOA: special.2009.06.10

Last year, almost two hundred seventy-five million people visited the national park system in the United States.

VOA: special.2009.09.28

But it moves us decisively in the right direction." Barry Arbuckle is chief executive of the non-profit MemorialCare Health System in Fountain Valley,California.

VOA: special.2010.03.26

Professor Reppert says scientists thought they understood the control system in the monarchs until they took a closer look at the insects' antenna.

VOA: special.2010.04.27

This week on our program, we take a look at the jury system in the United States.

VOA: special.2009.08.31

President Obama still has to decide the future of a Bush administration plan to put a missile defense system in Poland and the Czech Republic.

VOA: special.2009.05.23

Engineers on the ground designed a way the astronauts could connect air-cleaning devices from the command module to the air system in the lunar module.

VOA: special.2009.07.22