Epidemiology is concerned with the incidence of disease in populations and does not address the question of the cause of an individual's disease.This question, sometimes referred to as specific causation, is beyond the domain of the science of epidemiology.he subdiscipline of forensic epidemiology is directed at the investigation of specific causation of disease or injury in individuals or groups of individuals in instances in which causation is disputed or is unclear, for presentation in legal settings.
Major system characteristics. Tacan stands for Tactical Air Navigation and is a system which, working in the u.h.f. band, between 962 and 1,214 Mc/s, gives to a pilot continuous information as to his range and bearing from a beacon.
How Does Termite Bait Work? Termite bait contains a chemical called chlorfluazuron that restricts development of the termiteâs hard outer shell. Termite workers carry this chemical back in the food regurgitated to the young nymphs in the termite nest. when they fail to form this critical shell they die. Gases and fungus from the dead termites in the nursery area surrounding the queen kills her and the entire colony. Control Termites by Baiting the Workers.