Mohammed Bah Abba personally financed the first five thousand pot-in-pot systems for his own community and five villages nearby.

VOA: special.2009.02.09

They were put to work as cleaners at fish farms along the Mississippi River and in wastewater treatment systems.

VOA: special.2009.12.15

The Race to the Top competition will look for states and local school systems with effective reforms in four areas.

VOA: special.2009.07.30

They expressed concerns that information about risks to financial systems in central and eastern Europe is "often simplified and misleading."

VOA: special.2009.03.06

He says projects designed to increase interpersonal trust can have a major effect in poor countries with undependable legal systems.

VOA: special.2009.12.19

Barry Spletzer formerly worked as a top scientist at the Sandia National Laboratories Intelligent Systems and Robotics Center in New Mexico.

VOA: special.2011.06.21

Many victims live in areas with poor or non-existent health care systems and where antivenom treatments are often not available.

VOA: special.2010.01.25

Lawmakers in the United States have expanded an investigation into the use of location-tracking systems on mobile devices.

VOA: special.2011.05.02

Interest is also growing in energy management systems for the home and safe driving technologies for the car.

VOA: special.2010.01.08

In two thousand,after much research and many experiments, he returned to Nepal to put the systems into homes.

VOA: special.2009.12.21

Cities in the United States and Europe have increased security in and around their mass transportation systems.

VOA: special.2010.04.03

A new study in West Africa shows how farm irrigation systems powered by the sun can produce more food and money for villagers.

VOA: special.2010.01.11

Huge organizations like the United Nations or International Monetary Fund might provide millions of dollars in aid to build systems in a developing country.

VOA: special.2010.06.16

Eric Hartman,the director, described the water collection systems in blog postings from Tanzania earlier this month.

VOA: special.2009.07.27