Introduction to session on materials and structures

A review was given of the development of composites for aircraft. Supporting base technology and the Aircraft Energy Efficiency Composites Program are included. Specific topics discussed include: (1) environmental effects on materials; (2) material quality and chemical characterization; (3) design and analysis methods; (4) structural durability; (5) impact sensitivity; (6) carbon fiber electrical effects; and (7) composite components

Angular Momentum Evolution of Young Stars: Toward a Synthesis of Observations, Theory, and Modeling

The aim of this AAS Topical Session was to update the community on the current state of knowledge about the angular momentum evolution of young stars. For newcomers to the subject, the session was intended to provide an introduction and general overview and to highlight emerging issues. For experienced workers in this field, the session provided an opportunity for synthesizing recent developments in observations, theory, and modeling of rotation of young stars and for identifying promising new research directions.Comment: 10 pages, conference summary, to appear in April PAS

Spin and Rotation in General Relativity

Rapporteur's Introduction to the GT8 session of the Ninth Marcel Grossmann Meeting (Rome, 2000); to appear in the Proceedings.Comment: LaTeX file, no figures, 15 page

Exclusive channels in γγ\gamma\gamma reactions: light at the end of the tunnel?

The physics that can be learnt by studying exclusive channels in two photon interactions is recalled. This serves as an introduction to the Exclusive Reaction session of Photon'99.Comment: 9 pages,8 figures. Invited introductory talk at Photon'99, Freiburg im Br., Germany, May 199