|Self-renewal and differential ability make stem cells as probable tools for regeneration, repair or replacement therapies in a diversity of disease conditions. Furthermore, due to its plasticity and tropism to gather in diverse lesions, stem cells can be used as a tool to carry therapeutic gene for repair or regeneration of affected tissues. Contingent of their sources, stem cells are broadly characterized into embryonic stem cells (ESCs) i.e. cells derived from the inner cell mass of the blastocyst, and adult stem cells i.e. cells isolated from the adult bone marrow, peripheral blood or from specific organs.
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.