Most commonly, patients describe acute tenderness in the buttock and sciatica-like pain down the back of the thigh, calf and foot. Typical piriformis syndrome symptoms may include: 1  A dull ache in the buttock. 2  Pain down the back of the thigh, calf and foot (sciatica). 3  Pain when walking up stairs or inclines.
There are currently 10 sectors and 68 industries. Three of the 68 industries do not have companies represented in the S&P 500 Index; therefore, performance is not available for Marine, Transportation and Infrastructure, and Water Utilities.
Industry is a fairly generic term, but is most commonly used as a substitute term for a manufacturer of goods such as Pepsi or Ford. The term industry can also be used to refer to a very specific group of companies. For example, the financial industry, entertainment industry, and the service industry.The service industry is essentially non-good producing industries such as retail trade, wholesale trade, and the service industries.hat could be seen as the difference is that the service industries  are respondsible for d production of services for human both  tangible and intangible service while prod â¦ uction industries are  responsible for invention of both goods and services to satisfy  human unlimited wants. 3 people found this useful.