Molecular spectroscopy; Nuclear structure; Atomic and Nuclear physics 41 Nuclear structure 10 Nuclear physics 6 Atomic structure 3 Physics 3 Atomic and Nuclear physics 2 Enzymes 2 Molecular spectroscopy-- Nuclear structure-- Atomic and Nuclear physics 2 Atomic Physics 1 Basic nuclear structure 1 Biochemistry 1 Biology 1 Cell Physiological Phenomena 1 Cell cycle--Cell nuclei--Genetics 1 Cell nuclei 1 Cells 1 Cells. Cell Physiological Phenomena. Eukaryotic Cells 1 Cyclic nucleotides 1 Enzymes-- Coenzymes-- Cofactors-- Enzymology 1 Enzymology 1 Eukaryotic Cells 1 Hormones 1 NUCLEAR STRUCTURE , GENE EXPRESSION 1 Nuclear Binding Energy and Many-Body Theory 1 Nuclear Physics 1 Nuclear matrix 1 Nuclear reactions 1 Nuclear shapes 1 Nuclear shell theory 1 Nuclear spin 1