Currently, approximately 17% of electricity worldwide is produced by nuclear power plants, but in some countries, like France, over 75% of their electricity is produced by nuclear power (How Stuff Works). The United States, on the other hand, only produces about 15% of the electricity from nuclear power. Nuclear power plants use pellets to fuel the plants. A pellet contains approximately 3% U-235 that is encased in a ceramic matrix. Refueling the Reactor Core. Source: P. A. Scholle & D. S. Ulmer-Scholle, 1997, SEPM Photo CD-14, Environmental Sciences 5, SEPM, Tulsa, OK.
Definition of cervix. plural. cervices. play \ËsÉr-vÉ-ËsÄz, (Ë)sÉr-ËvÄ«-(Ë)sÄz\ or. cervixes. 1 : neck; especially : the back part of the neck. 2 : a constricted portion of an organ or part; especially : the narrow outer end of the uterus.
In the anatomy of the female reproductive system, the canal of the cervix (also called the endocervical canal, cervical canal, cervical canal of uterus, or the cavity of cervix) is the spindle-shaped, flattened canal of the cervix, the neck of the uterus.he wall of the canal presents an anterior and a posterior longitudinal ridge, from each of which proceed a number of small oblique columns, the palmate folds, giving the appearance of branches from the stem of a tree; to this arrangement the name arbor vitae vitÃ¦ uteri is. applied