Oral mucocele (also termed mucous retention cyst, mucous extravasation cyst, mucous cyst of the oral mucosa, and mucous retention and extravasation phenomena) is a clinical term that refers to two related phenomena:1  Mucus extravasation phenomenon.ral mucocele (also termed mucous retention cyst, mucous extravasation cyst, mucous cyst of the oral mucosa, and mucous retention and extravasation phenomena) is a clinical term that refers to two related phenomena:
A CFD, or Contract for Difference, is an agreement between two parties to exchange the difference between the opening price and closing price of a contract. CFD, or Contract for Difference, is an agreement between two parties to exchange the difference between the opening price and closing price of a contract.
Group of business people working together in the office. image by Andrey Kiselev from Fotolia.com. Although a contract for services and a service contract don't sound very different, independent contractors and employers know otherwise.A contract for services is extended to a self-employed individual whereas a service contract is a run of the mill, ordinary employee contract.ontracts for services can possess the characteristics of a service contract to some degree, but as a general rule if the company exerts excessive control over the situation, the employee isn't truly an independent contractor and should receive a normal service contract.