During the initial discovery period of global climate change, the magnitude of the influence of the Sun on Earth's climate was not well understood. Since the early 1990s, however, extensive research was put into determining what role, if any, the Sun has in global warming or climate change.
Paracentral Herniating Disc. A paracentral herniation occurs when the bulge of the affected intervertebral disc points in direction of the middle part of the spinal canal, also called the foramen. The word âparacentralâ originates from the Greek and means ânear the centerâ of something.
1 Intervertebral disc disease (IVDD) is a condition in which a disc develops a problem and the material inside escapes into the spinal column, ultimately causing pain, nerve damage, and even paralysis. There are two types of IVDD: Hansen Type I, which involves the acute, explosive herniation of a disc, and Hansen Type II, which is a gradual, progressive protrusion of disc material.