The magic numbers in exotic nuclei are discussed, and their novel origin is shown to be the spin-isospin dependent part of the nucleon-nucleon interaction in nuclei. The importance and robustness of this mechanism is shown in terms of meson exchange, G-matrix, and QCD theories. In neutron-rich exotic nuclei, magic numbers such as N = 8, 20, etc. can disappear, while N = 6, 16, etc. arise, affec...

The structure of the light proton and neutron rich nuclei is studied in a microscopic multicluster model using the stochastic variational method. This approach enables us to describe the weakly bound nature of these nuclei in a consistent way. Applications for various nuclei 9−10 B presented. The paper discusses the relation of this model to other models as well as the possible extension for p ...

1. The preparation and properties of lysine-rich histones, which differ in a number of respects from the classical arginine-rich histones, have been described. 2. Lysine-rich histones, like those previously known, are located in cell nuclei. 3. Lysine-rich histones dissociate more readily from combination with nucleic acid than do other histones.

The excited states of 12 Be, 14 Be and 15 B have been studied with a method of antisym-metrized molecular dynamics. In the predicted excited states we find novel molecule-like structures with very exotic clusters such as 6 He+ 8 He in 14 Be and 6 He+ 9 Li in 15 B. The origin of the 6 He cluster development in the very neutron-rich nuclei is understood by the new-type correlation among 4 neutron...

Medium-mass neutron-rich nuclei are important for nuclear structure investigations (e.g. shell evolution with neutron excess) and nuclear astrophysics (e.g. r-process in nucleosynthesis). However, these investigations are limited because of the difficulties in producing medium-mass nuclei with a large neutron excess. The traditional way for producing neutron rich nuclei was fission of actinides...