Tissue transplantation is that the transfer of essential tissue from one location to a different with within the same individual or from one person to the opposite for the aim of replacing patients damaged tissue or sometimes absent tissue. Many diseases which can not be readily curable by any existing therapies are often cured by this method of this tissue transplantation technique. There are differing types of tissue transplantations and therefore the most ordinarily transplanted tissues include cornea, skin, heart valves, nerves and veins. Scientific journal may be a periodical publication intended to further progress of science, usually by reporting novel research. There are thousands of scientific journals in publication, and lots of more are published at various points within the past. Most journals are highly specialized, although a number of the oldest journals publish articles and scientific papers across a good range of scientific fields. Scientific journals contain articles that are peer reviewed, to make sure that articles meet the journal's standards of quality, and scientific validity. The publication of the results of research is an important a part of the methodology . If they're describing experiments or calculations, they need to supply enough details that an independent researcher could repeat the experiment or calculation to verify the results. Each such journal article becomes a part of the permanent scientific record.