Aspen Institute. The Aspen Institute is an international nonprofit organization founded in 1950 as the Aspen Institute of Humanistic Studies. The organization is dedicated to fostering enlightened leadership, the appreciation of timeless ideas and values, and open-minded dialogue on contemporary issues.
Nitrogen occurs in all organisms, primarily in amino acids (and thus proteins), in the nucleic acids (DNA and RNA) and in the energy transfer molecule adenosine triphosphate. The human body contains about 3% by mass of nitrogen, the fourth most abundant element in the body after oxygen, carbon, and hydrogen.
Most inorganic compounds do not contain carbon; however, in those inorganic substances that do contain carbon, carbon-hydrogen bonds are absent. Organic compounds always contain carbon and almost all have carbon-hydrogen bonds, according to About.com. Organic compounds are associated with living material.