A tumor growing in an organ, such as the liver, may stretch part of the organ, and this stretching causes pain. If a tumor grows and spreads to the bones or other organs, it may put pressure on nerves and damage them, causing pain. Or, if a tumor spreads or grows around the spinal cord, it can cause a compression of the spinal cord, which eventually leads to severe pain or paralysis if not treated.
Scientific journal is a periodical publication intended to further progress of science, usually by reporting novel research. There are thousands of scientific journals in publication, and many more have been published at various points in the past. Most journals are highly specialized, although some of the oldest journals publish articles and scientific papers across a wide range of scientific fields.
Scientific journals contain articles that are peer reviewed, to ensure that articles meet the journal's standards of quality, and scientific validity. The publication of the results of research is an essential part of the scientific method. If they are describing experiments or calculations, they must supply enough details that an independent researcher could repeat the experiment or calculation to verify the results. Each such journal article becomes part of the permanent scientific record.
Last date updated on June, 2014