Corticosteroids are also used supportively to prevent nausea, often in combination with 5-HT3 antagonists (e.g. ondansetron). Typical undesired effects of glucocorticoids present quite uniformly as drug-induced Cushing's syndrome.
Common causes. A gas explosion occurs when the gas/air mixture reaches a critical value, then any spark, flame or heat source can ignite the mixture. The explosion is caused when the rapidly expanding, burning gas is confined and builds up pressure. As the pressure builds, something has to give, and in a home gas explosion it is usually the windows.
When properly combusted, propane produces about 50 MJ/kg of heat. The gross heat of combustion of one normal cubic meter of propane is around 91 megajoules. Propane combustion is much cleaner than gasoline combustion, though not as clean as natural gas combustion.