Sentence:  Since the original research that marked its inception, descriptive accounts of results of "<WSD>Edenization</WSD>" (or "the EA") in various facilities suggest that its endorsed changes in nursing home culture have a positive impact on residents' quality of life (Barba, Tesh, & Courts, 2002). 
Meaning of the word marked with <WSD> tags:  The conversion of a traditional institutional nursing home into a community where patients can live a full and active life.