In math mode a tilde diacritic can be written as, e.g., \tilde{x}. For a wider tilde \widetilde can be used. The \sim command produce a tilde-like binary relation symbol that is often used in mathematical expressions, and the double-tilde â is obtained with \approx. The url package also supports entering tildes directly, e.g., \url{http://server/~name}.
Cerebral palsy (CP) is a broad term used to describe a group of chronic palsies -- disorders that impair control of movement due to damage to the developing brain.CP usually develops by age 2 or 3 and is a nonprogressive brain disorder, meaning the brain damage does not continue to worsen throughout life.erebral palsy (CP) is a broad term used to describe a group of chronic palsies -- disorders that impair control of movement due to damage to the developing brain.
Every case of cerebral palsy is unique to the individual. This is due in part by the type of injury, extent of injury, and the timing of injury to the developing brain. The brain damage that causes cerebral palsy is a result of either:1  Prenatal disturbance of brain cell migration â genetic and environmental factors disturb brain cell migration as cells move to their appropriate location during brain development.very case of cerebral palsy is unique to the individual. This is due in part by the type of injury, extent of injury, and the timing of injury to the developing brain. The brain damage that causes cerebral palsy is a result of either: