Abstract: Films of gallium manganese nitride are grown on a substrate by molecular beam epitaxy using solid source gallium and manganese and a nitrogen plasma. Hydrogen added to the plasma provides improved uniformity to the film which may be useful in spin-based electronics.

Abstract: A method and apparatus for estimating vehicle yaw rate using a pair of single axis accelerometers that obviate the need for a gyroscope when used to provide a yaw rate estimate to a vehicle stability control system. The accelerometers are longitudinally aligned along an axis with one accelerometer in front of the vehicle center of gravity and one behind it. A method of estimating yaw rate uses a statistical estimating algorithm to process accelerometer inputs and a steer angle from a steer angle sensor on the vehicle.

Abstract: Mutant antithrombin modified to carry a more positive charge in the H-helix is provided. The modified antithrombin modulates the activities of thrombin, and extends the bioavailability of factor VIII.

Abstract: A system for rapid collection of large volumes of dissolved gases from groundwater pumps the water from a large-diameter passage through a small-diameter restrictor passage, and then into a flow-through collection chamber. The small-diameter passage causes a drop in the hydrostatic pressure of the groundwater traveling therein, causing spontaneous ebullition of gas bubbles which are then collected in the collection chamber. Testing reveals that the gases are collected in proportion to their presence in the groundwater, and thus the system allows accurate quantification of concentrations of dissolved gas in groundwater. The system may beneficially be made easily portable, thereby allowing its use in the field as well as in laboratory settings.

Abstract: A method of producing a compound of the formula: and its pharmaceutically acceptable salts, wherein Ar is a substituted or unsubstituted aromatic or heteroaromatic group; comprising: (1) reacting a compound of the formula: wherein Ar is as described above, with N2CHCOOR, wherein R is alkyl, in the presence of a catalytic amount of a Bronsted acid or Lewis acid to form a compound of the formula: wherein Ar and R are as described above; and (2) reacting the compound of formula (II) with a reducing agent in the presence of an alkyl amine to form a compound of the formula: wherein Ar and R are as described above.

Abstract: A method of expressing proteins is disclosed. In a preferable embodiment, the method comprises placing a DNA sequence encoding a protein or peptide and expression vector containing a regulatable promoter expressible in Rhodospirillum rubrum and expressing the protein within a bacterial host, wherein the host has extra capacity for membrane formation and wherein the host is a member of the genus Rhodospirillum.