31.   To adjust, the researchers computed total hours worked as the product of worker-reported hours per job from the survey and total jobs from the establishment series.

32.   You may want to have a cooperative program in which parents of enrolled children are required to volunteer a certain number of hours per year.

33.   Productive capacity per hour is likely to decrease with the rise of work hours per day.

34.   Another slight difference, apparent only in the scientific tests, was linked to the number of hours per week worked by the mothers, the researcher said.

35.   How many hours per week do you use a computer for non-company related activities?

36.   Maximum cell phone use was at least an hour per day for five or more years, and no brain-cancer link was found even at that level.

37.   So he began working out between five and seven hours daily in the offseason and two extra hours per day during the season.

38.   The rise in number of work hours per day makes a break somewhere in the middle of the day necessary.

39.   This pool of labor -- including those who work for only several hours per week -- are often referred to as the partially unemployed, or disguised unemployment.