Archive: 10/01/2007

Great Plains' historical stability vulnerable to future changes

A survey of long-term trends in population, farm income, and crop production in the agricultural Great Plains concludes that threats to society and the environment are counterbalanced by “surprising stability” and the ...

Oct 01, 2007
2 / 5 (1) 0

Childhood TV viewing a risk for behavior problems

Daily television viewing for two or more hours in early childhood can lead to behavioral problems and poor social skills, according to a study of children 2.5 to 5.5 years of age conducted by researchers at the Johns Hopkins ...

Oct 01, 2007
4.7 / 5 (16) 0