Poison ivy, oak, and sumac are plants that can cause a red, itchy rash called allergic contact dermatitis. It is the most common skin problem caused by contact with plants. The rash is caused by contact with a sticky oil called urushiol (say yoo-ROO-shee-all) found in poison ivy, oak, or sumac.
For other uses, see Superstition (disambiguation). Superstition is a popular song composed, produced, arranged, and performed by Stevie Wonder for Motown Records in 1972. It was the lead single for Wonder's album Talking Book, and released in many countries. It reached number one in the U.S., and number one on the soul singles chart.
For a case of this latter point of view, see superstitious behavior. As I, and numerous others, have already previously observed, it is notoriously difficult to define superstition. Therefore, I pity dictionary writers, who are meant to provide an informative, but brief, definition of this slippery concept.Here is how the Dictionary of Psychology edited by Arthur Reber and published by Penguin (2nd ed.) tries to deal with this task:he first thing to notice is that the dictionary divides off superstitious beliefs and practices, only covering the beliefs in this definition and dealing with supserstitious practices in another definition. The reason is to some degree historical being linked to Skinnerâs study of âsuperstitiousâ behaviour in pigeons.