Professor Johnson suspects a strong link between the rise of instant and casual communication online and an increase in writing mistakes.

VOA: special.2010.01.28

She also linked it to a one to two point increase in the number of women in the labor force.

VOA: special.2010.03.04

And many have. Yet now comes a study showing an increase in the number of injuries in "phys ed" class.

VOA: special.2009.08.06

He says the increase in milk production reached a high of more than six kilograms per cow per day.

VOA: special.2009.05.12

He says every extra hour of television meant an eight percent increase in the chances of developing signs of depression.

VOA: special.2009.03.10

The study found a sixty-three percent increase in the number of people treated for rock climbing injuries in American hospitals.

VOA: special.2009.12.09

The study found a big increase in the percentage of married women who earn more money than their husbands.

VOA: special.2010.02.19

The American Cancer Society says governments can do things to help prevent the increase in cancer cases and deaths.

VOA: special.2009.03.02

Another reason for the increase in bird strikes is the growing popularity of air travel in the United States.

VOA: special.2009.04.01

Dr. David Hunter says he has not seen an increase in his practice as a pediatric ophthalmologist at Children's Hospital Boston.

VOA: special.2011.08.01

This,he said, will lead to an increase in claims that judges are biased, "however groundless those charges may be."

VOA: special.2009.06.12

In China,some farmers and researchers blame a decrease in pesticide use for an increase in pests unaffected by Bt.

VOA: special.2009.10.27

This leads to an increase in diseases like diarrhea, the second leading cause of death in children under five.

VOA: special.2010.04.05

Some eye care professionals say all that screen time has led to an increase in what they call computer vision syndrome.

VOA: special.2011.08.01