The study says the elderly are nine percent of the total population of low and middle income countries today.

VOA: special.2009.12.28

Also,the study says the United States fell from thirty-fourth to forty-ninth in female mortality and from forty-first to forty-fifth for men.

VOA: special.2010.05.05

The study says mangrove trees provide more than one and a half billion dollars worth of services to ecological systems worldwide.

VOA: special.2010.04.20

The study says the IQs or intelligence quotients of the younger children who were not spanked were five points higher than those who were.

VOA: special.2009.10.21

The study says class attendance improved.

VOA: special.2010.07.07

And then invest on someone is a lot of sacrifice" The study says the mean monthly cost incurred by caregivers was about $90.

VOA: standard.2010.05.10

Conducted by the U.N.Children's Fund and the University of Ziguinchor, the study says breaking the silence around sexual violence in the region is key to protecting girls.

VOA: standard.2010.06.29

The study says female-headed households have a particularly tough time.

VOA: standard.2009.09.20

She also says the study does not prove that negative emotions or distrust lead to bad health effects and shorter life.

VOA: special.2009.04.15

Maryse Bouchard says the study found that exposure could play a part in behaviors such as inattention and hyperactivity.

VOA: special.2010.05.26

A new study says the leading cause of disability in older people in low and middle income countries is dementia.

VOA: special.2009.12.28

Professor Bartemeus says the study shows how human activities in the natural environment can change the travels of other organisms.

VOA: special.2010.03.02

He says what is most important is that cities support the kinds of literacy methods that the study examines.

VOA: special.2009.03.27

The Institute of International Education in New York says that was the biggest increase of any area of study.

VOA: special.2009.05.07

The study was partly supported by Vibram, which makes a kind of footwear that it says is like running barefoot.

VOA: special.2010.02.03

He says the agency currently has twenty-eight projects working in astrobiology, or the study of life in outer space.

VOA: special.2010.05.25

She says the good news in the study is that some species of mangrove can be reforested relatively easily.

VOA: special.2010.04.20

Doctor DeMeo says some of the people in the study did not smoke much but still developed severe lung disease.

VOA: special.2009.06.03

Professor Christiano says the next step is to repeat the study in future research, with a larger number of patients.

VOA: special.2011.04.05

Test projects have already begun, and he says the main part of the National Children's Study will begin next year.

VOA: special.2011.08.03

Doctor Ruhli says researchers used this method to study changes in the tuberculosis bacteria from two thousand year-old mummified tissue.

VOA: special.2010.06.29

Yale University astronomer Debra Fischer says non-professional astronomers around the world are helping study the new information about the possible planets.

VOA: special.2011.02.09

Harris Perlman says the suicide molecule halted and even reduced rheumatoid arthritis in seventy-five percent of mice in the study.

VOA: special.2010.03.16

But one of the authors of the study, Tim McClanahan from the Wildlife Conservation Society, says fisheries in Africa face another threat.

VOA: special.2009.08.11

Doctor Kuiken says the devices used in the study need more work before they will be widely available.

VOA: special.2009.03.10

He says the earlier study gained so much recognition, it became -- in his words "fixed in many people's minds as true."

VOA: special.2009.06.24

Mister Weindruch says his study is not complete and that his team will continue to observe the remaining monkeys throughout their lives.

VOA: special.2009.09.01