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Areas of reduced blood flow to the heart muscle — through which less of the radioactive material flows — appear as dark spots on the scan . Her heart problems made it hard to exercise . On the other hand , library users can copy items owned by their libraries ; they have been making handwritten notes and photocopying legally - - and perhaps illegally . Again , I only have the first reports on the attack that took place out on the highway road - - actually , it was the north-south road that veers into the airport road , and I got those reports firsthand from some fairly shaken up contractors . They are found to offer consistency and compliance monitoring capabilities but must be evaluated based on their mechanism of action , such as cycle length , water pressure and quantity , as well as the products utilized in the handwash procedure . Her life spanned the convulsions of two world wars , revolutions and civil wars , and events worse than war in which human lives were uprooted and destroyed on a scale never seen before . No major systematic problems were noted in forecasts of the SR wind speeds , though forecast error statistics suggest a slight tendency for this technique and the Eta model to underforecast 500 mb SR wind speed for the tornadic cases and surface-level SR wind speed for the nontornadic cases , while there is a slight tendency to overforecast surface-level SR wind speed for the tornadic storms .