McKhann et al., 2011, Alzheimerâs & Dementia Possible AD â¢ Atypical course (e.g., sudden onset or no evidence of progressive decline) â¢ Etiologically mixed presentation â¢ Concomitant cerebrovascular disease (e.g., history of stroke temporally related to cognitive
Ellen Louise Ripley is a fictional character and the protagonist of the Alien film series played by American actress Sigourney Weaver.
Sigourney was an educator, an historian, and a devout Christian, and much of her work was, in Nina Baym's phrase, activist and interventionist.. She capitalized on her role as a writer for the general public, producing writing that was often moral and didactic.