The flu is a common infectious disease caused by influenza (flu) viruses. The flu usually affects a person's breathing system.Seasonal flu generally occurs in the fall and winter and is caused by human influenza viruses. 1  Flu Frequently Asked Questions.[ 2  English ] [ Spanish ] [ Chinese ].he usual signs and symptoms of the flu are cough, sore throat, runny or stuffy nose, body aches, headache, chills, and feeling very tired. Most people also have a fever. Others may throw-up and have diarrhea.
Page 21 Trauma Theory: Contexts, Politics, Ethics 21 History The foregrounding of questions of testimony and witness establish trauma theoryâs pertinence to the discipline and practice of history. Trauma theory is associated with the âturn to memoryâ in history as well as in the Humanities more generally. Postmodernismâs problematizations of grand narratives, objectivity, universality and totality prompted a turn to memoryâs partial, local and subjective narratives.
Systems theory is the interdisciplinary study of systems. A system is a cohesive conglomeration of interrelated and interdependent parts that is either natural or man-made. Every system is delineated by its spatial and temporal boundaries, surrounded and influenced by its environment, described by its structure and purpose or nature and expressed in its functioning. In terms of its effects, a system can be more than the sum of its parts if it expresses synergy or emergent behavior. Changing one