Abstract:
:Whereas 234(92)U142 and other actinon nuclei have ground-state bands that indicate that each nucleus consists of a sphere and a single revolving cluster with constant composition and with only a steady increase in the moment of inertia with increase in J, the angular-momentum quantum number, many of the lanthanon ground-state bands show discontinuities, usually with an initial slightly or strongly curved segment followed by one or two nearly straight segments. The transition to nearly straight segments is interpreted as a change in structure from one revolving cluster to two revolving clusters. The proton-neutron compositions of the clusters and the central sphere are assigned, leading to values of the radius of revolution. The approximation of the two-cluster sequences to linearity is attributed to the very small values of the quadrupole polarizability of the central sphere. Values of the nucleon numbers of clusters and spheres, of the radius of revolution, and of promotion energy are discussed.
journal_name
Proc Natl Acad Sci U S Aauthors
Pauling Ldoi
10.1073/pnas.88.3.820keywords:
subject
Has Abstractpub_date
1991-02-01 00:00:00pages
820-3issue
3eissn
0027-8424issn
1091-6490journal_volume
88pub_type
杂志文章abstract::The yeast auxiliary transcription factor GAL11, a candidate for the coactivator, was partially purified from yeast cells, and its function was characterized in a cell-free transcription system. The partially purified GAL11 protein stimulated basal transcription from the CYC1 core promoter by a factor of 4-5 at the ste...
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更新日期:1991-01-15 00:00:00
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journal_title:Proceedings of the National Academy of Sciences of the United States of America
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