A note on low energy scattering for homogeneous long range potentials

We explicitly calculate the scattering matrix at energy zero for attractive, radial and homogeneous long-range potentials. This proves a conjecture by Derezinski and Skibsted.Comment: 3 page

Statistical Reporting of American Library Developments by the Federal Government

published or submitted for publicatio

Preparation of o-Fluorobenzoic Acid. An Elementary Organic Laboratory Experiment

An experiment designed for organic chemistry students at the sophomore level is presented. The experiment, which involves no special equipment and which employs only inexpensive reagents, demonstrates the conversion of anthranilic acid to o-fluorobenzoic acid via the modified Schiemann Reaction

Future Summary

We are emerging from a period of consolidation in particle physics. Its great, historic achievement was to establish the Theory of Matter. This Theory will serve as our description of ordinary matter under ordinary conditions -- allowing for an extremely liberal definition of "ordinary -- for the foreseeable future. Yet there are many indications, ranging from the numerical to the semi-mystical, that a new fertile period lies before us. We will discover compelling evidence for the unification of fundamental forces and for new quantum dimensions (low-energy supersymmetry). We will identify new forms of matter, which dominate the mass density of the Universe. We will achieve much better fundamental understanding of the behavior of matter in extreme astrophysical and cosmological environments. Lying beyond these expectations, we can identify deep questions that seem to call for ideas outside our present grasp. And there's still plenty of room for surprises.Comment: 25 pages, 13 EPS figures, LaTeX with BoxedEPS macros. Closing talk delivered at the LEPfest, CERN, October 11, 2000. Email correspondence to [email protected]

Dot patterns provide reproducible flaw areas for study of adhesive bonds

Photographic production of a small-dot pattern of known geometry on the surface of a substrate for controlled area degradation enables a study of adhesive bond strengths. These dot patterns may also be applied to force-limiting devices which must depend on the adhesive bonding strength between mating surfaces