31.   High density need not doom a nation to epidemics and unusual outbreaks of disease if sewage, water systems, housing and public-health provisions are adequate.

32.   However, the fan systems are made in plastic, a high density polymer that can be painted.

33.   If people preferentially cut saturated fats, they lower the proportion of high density lipoproteins in their blood, which protect against heart disease.

34.   If it was cheap to wire a township or a squatter camp because it was a high density area near the main power lines, it was done.

35.   In any urban area, there is usually a high density of sites to accommodate a large number of users.

36.   In both Azusa and Thousand Oaks, city officials made special allowances for the high density because of the perceived desirability of promoting single-family housing.

37.   It lowers the heart rate and blood pressure, increases the high density lipoprotein in the blood and decreases the low density lipoprotein.

38.   Low-density polyethylene is more flexible and has better clarity, while high density is stronger and less permeable.

39.   Nor does it have the high density that many retailers seek.

40.   People wait to cast their ballots outside a polling station in a high density suburb of Harare, Monday.