1 Preheat oven to 450Â°F. 2  3. Put roast on a metal rack in a roasting pan (fat side up) and sprinkle generously with salt and pepper.  4. Add about 1/4 inch water to bottom of pan and put roast in middle of oven.
PJM Interconnection LLC (PJM) is a regional transmission organization (RTO) in the United States.
The PR interval was defined as the interval from the onset of the P wave (junction between the TâP isoelectric line and the beginning of the P wave deflection) to the end of the PR segment (junction with the QRS complex) (Figure 1).