Abstract: Tissue plasminogen activator (t-PA) zymogens and variants are prepared, including a fibrinolytically active variant of t-PA that has an amino acid alteration at a site within the protease domain of t-PA as compared with the corresponding wild-type t-PA, which alteration renders the variant zymogenic in the presence of plasmin-degraded fibrinogen, and/or fibrin (or plasma clot) specific, as compared to the corresponding wild-type t-PA. DNA sequences can be prepared that encode the zymogens and variants, as well as expression vectors incorporating the DNA sequences, and host cells transformed with the expression vectors. The zymogens and variants may be used in a pharmaceutical preparation to treat a vascular disease or condition or to prevent fibrin deposition or adhesion formation or reformation in mammals.

Abstract: Disclosed are novel, stable pharmaceutically acceptable compositions containing human tissue plasminogen activator, featuring, for example, an argininium ion containing buffer as a component. Also disclosed are associated means and methods for preparing and using such compositions in various forms.

Abstract: Superconducting composites are made from ceramic-type superconductors coated onto a low resistivity carbon fiber selected from those high strength fibers which have an ultrahigh modulus and high thermal conductivity. Flexible conductors of several different structures made from such composites are described as well as other useful forms of the composites.

Abstract: Disclosed are novel, stable pharmaceutically acceptable compositions containing human tissue plasminogen activator, featuring, for example, an argininium ion containing buffer as a component. Also disclosed are associated means and methods for preparing and using such compositions in various forms.

Abstract: Disclosed are novel, stable pharmaceutically acceptable compositions containing human tissue plasminogen activator, featuring, for example, an argininum ion containing buffer as a component. Also disclosed are associated means and methods for preparing and using such compositions in various forms.

Abstract: A label printer and applicator including conveyor for continuously moving packages of different sizes and shapes from a loading point to a discharge point. Labels are selectively printed to bear any desired indicia such as pricing information, contents, or quantitites which may be uniquely applicable to any given package moving on the conveyor. Upon arrival of the package at a predetermind point along the conveyor the label, which may be uniquely applicable to that package, is affixed thereto by a novel label applicator.