The increased cell-site density will give traffic planners much more flexibility to deliver high-capacity services than if the two companies operated separately.

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An alkaline cell with sufficient power density may soon, however, be on the way.

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Many companies are working on coming up with better materials for the cathode or the anode in order to increase the energy density of the battery cell.

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In addition, the city's density poses extraordinary challenges for readying cell sites with backup power and then getting them back online when outages happen.

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High density areas served by a large number of cell sites might not be an issue in urban locations, but it will factor in a great deal once you are traveling into and around rural areas not served by a vast number of sites.

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It also lowered the so-called good cholesterol, or high-density lipoprotein (HDL), and it did not enter the cell, a characteristic Medford wanted hisdrug to have, because some of the oxidation process takes place within cellular membranes.

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