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Charge Stripes in High-Temperature Superconductors 2. A Sampling of ALS Users 7. Operations Update 1. With a puzzling array of properties unlike those of ordinary superconductors, these materials have defied understanding since the discovery of the first HTSC compound in 1986. While the stripes were already known from other work, the latest data raise new questions about the electronic structure associated with these entities and its relation to superconductivity.