(See How Catalytic Converters Work for more details.). Controlling the engine is the most processor-intensive job on your car, and the engine control unit (ECU) is the most powerful computer on most cars.
â¢ Accidental poisoning is one of the leading causes of GI ulcer disease. This can be from plants (for example, toxic mushrooms, castor beans, or sago palm), pesticide or rodenticide toxicity, chemical poisoning (often with ethylene glycol or phenol), or heavy metal poisoning involving zinc, iron, or arsenic.
1 Ulcers develop when digestive juices produced in the stomach, intestines, and digestive glands damage the lining of the stomach or duodenum. 2  In 1982 two Australian scientists identified the bacteria H. pylori as the main cause of peptic ulcers.