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.
an organic compound that contains only carbon and hydrogen By definition, a compound contains at least two elements. The simplest organic compounds contain only carbon and hydrogen and are called hydrocarbons. alkane a hydrocarbon containing only single covalent bonds; alkanes are saturated hydrocarbons Methane and ethane are examples of alkanes. An alkane is a hydrocarbon in which there are only single covalent bonds. In any alkane, all the carbon-carbon bonds are single covalent bonds, and all the other bonds are carbon-hydrogen bonds.