a high number of deaths and serious illnesses caused by the unhygienic conditions under which the operations are performed, especially in such countries as Oman, South Yemen, Somalia, Djibouti, Sudan, southern Egypt, Ethiopia, northern Kenya and Mali

Action of a drug other than that desired for beneficial pharmacological effect.

a secondary effect of a drug which is produced as well as the therapeutic effect. The term is usually used to refer to undesirable or toxic effects.

a toxic effect from the drug which is not wanted

a language construct that modifies the state of the system

an efficient construction for the "fair split tree" hierarchical clustering method used by Callahan and Kosaraju for various nearest neighbor problems

applies to a routine which permanently modifies the environment in which it is called. For example: changing objects visible to the calling environment, writing to the screen, emitting a sound, or writing to a printer or a file.

a specific kind of epiphenomenon that does occur as a consequence

An indirect change to a variable, or, the work of instructions within a function not directly related to the calculation of its return value.

a temporary loss of the old value of these preferences (just set them again and all will be fine)