The experimental excitation function for the 7α de-excitation of 28 Si nuclei excited to high excitation energies in the collisions of 35 MeV/nucleon 28 Si with 12 C reveals resonance structures. The possibility that these structures may indicate the population of toroidal high-spin isomers such as those predicted by a number of recent theoretical calculations is discussed and the need for further investigations is emphasized.

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The excitation function for the 7 alpha de-excitation of 28 Si nuclei excited to high excitation energies in the collisions of 35 MeV/nucleon 28 Si with 12 C reveals resonance structures that may indicate the population of toroidal high-spin isomers such as those predicted by a number of recent theoretical calculations. This interpretation is supported by extended theoretical analyses.

Drawing upon findings from a national survey of U.S. public libraries, this paper examines trends in Internet and public computing access in public libraries across states from 2004 to 2006. Based on library-supplied information about levels and types of Internet and public computing access, the authors offer insights into the network-based content and services that public libraries provide. Examining data from 2004 to 2006 reveals trends and accomplishments in certain states and geographic regions. This paper details and discusses the data, identifies and analyzes issues related to Internet access, and suggests areas for future research.