Lovelle Svart woke up Friday knowing it was the day she would die. There was much to do. Her family and closest friends would be gathering at 11 a.m. in her mother's apartment in the Southwest Portland assisted-living center where they both lived. She directed trips to the grocery store and even called AAA to jump-start the dead battery of her 2006 Scion. She double-checked delivery of food platters from Fred Meyer: turkey sandwiches, strawberries and grapes, pretzels, almonds and sparkling water. There would be pink roses on the dining table and a boombox in the corner to play music,...