According to Cooper (1988) '... a literature review uses as its database reports of primary or original scholarship, and does not report new primary scholarship itself. The primary reports used in the literature may be verbal, but in the vast majority of cases reports are written documents.
Reactive oxygen species. Reactive oxygen species (ROS) are chemically reactive chemical species containing oxygen. Examples include peroxides, superoxide, hydroxyl radical, and singlet oxygen. In a biological context, ROS are formed as a natural byproduct of the normal metabolism of oxygen and have important roles in cell signaling and homeostasis.
From Wikipedia, the free encyclopedia. An oxidase is any enzyme that catalyzes an oxidation-reduction reaction, especially one involving molecular oxygen (O 2) as the electron acceptor. In reactions involving donation of a hydrogen atom, oxygen is reduced to water (H 2 O) or hydrogen peroxide (H 2 O 2).rom Wikipedia, the free encyclopedia. An oxidase is any enzyme that catalyzes an oxidation-reduction reaction, especially one involving molecular oxygen (O 2) as the electron acceptor. In reactions involving donation of a hydrogen atom, oxygen is reduced to water (H 2 O) or hydrogen peroxide (H 2 O 2).