Abstract:
A time-of-flight direct recoil ion scattering spectrometer (10) is comprised of a device (12) for producing a beam of ions and a device (14, 16) for pulsing said beam of ions. The device (12) and the pulsed device (14, 16) is operative to dynamically adjust the interval between successive beam pulses in accordance with the combination of ion beam mass and energy to maximize repetition rate consistent with resolved data separation. An ion beam emitted from a sample (24) is detected after the sample is bombarded by a pulsed beam of ions from the spectrometer (10), and the incoming ion beam path and outgoing beam path of said spectrometer (10) undergo differential pumping.
Abstract:
The invention relates to the observed tight linkage between DNA polymorphisms in the glucokinase gene (GCK) on the short arm of chromosome 7, and NIDDM in a cohort of sixteen French families having MODY. It further relates to identification of mutations in GCK and their linkage with diabetes in particular families are disclosed. This invention provides the first evidence implicating specific mutations in a gene involved in glucose metabolism in the pathogenesis of NIDDM. The invention further discloses the isolation and characterization of human pancreatic beta -cell GCK and a method for searching for mutations that cause early-onset NIDDM. To assess the effect of these mutations on glucokinase activity, a method is disclosed for generating an alpha -carbon backbone model for human glucokinase based on the crystal structure of the structurally-related yeast hexokinase B. Thus, in its most general sense, the invention relates to a method for detecting a propensity to develop early-onset, non-insulin-dependent diabetes mellitus.
Abstract:
A method and pharmaceutical for protecting against genotoxic damage in irradiated cells. Reduction of mutations at the hypoxanthine-guanine phosphoribosyl transferase locus is accomplished by administering an effective dose of a compound having protected sulfhydryl groups which metabolize in vivo to produce both free sulfhydryl groups and disulfides.
Abstract:
An electromagnetic induction pump in which an electrically conductive liquid is made to flow by means of a force created by interaction of a permanent magnetic field and a DC current. The pump achieves high efficiency through combination of: powerful permanent magnet materials (32, 33) which provide a high strength field that is uniform and constant; steel tubing (11) formed into a coil which is constructed to carry conducting liquids with minimal electrical resistance and heat; and application of a voltage applied across buss bars (16, 17) to induce a DC current which continuously produces a force in the direction of the desired flow.
Abstract:
This invention relates to genetic constructs which comprise an enhancer-promoter region which is responsive to radiation, and at least one structural gene whose expression is controlled by the enhancer-promoter. This invention also relates to methods of destroying, altering, or inactivating cells in target tissue by delivering the genetic constructs to the cells of the tissues and inducing expression of the structural gene or genes in the construct by exposing the tissues to ionizing radiation. This invention is useful for treating patients with cancer, clotting disorders, myocardial infarction, and other diseases for which target tissues can be identified and for which gene expression of the construct within the target tissues can alleviate the disease or disorder.
Abstract:
A bipolar battery (10) having a plurality of cells (14) is disclosed. The bipolar battery (10) includes: a negative electrode (28); a positive electrode (25); and a separator element (40) disposed between the negative electrode (28) and the positive electrode (25) which insulates the electrodes from one another; an electrolyte disposed within at least one of the negative electrodes (28), the positive electrode (25) and the separator element (40) and an electrode containment structure including a cup-like electrode holder (38).
Abstract:
Method of manufacture of ceramic materials which require stability in severely-corrosive environments having high alkali-metal activity, high sulfur/sulfide activity and/or molten halides at temperatures of 200-550 °C or organic salt (including SO2 and SO2Cl2) at temperatures of 25-200 °C. These sulfide ceramics form stoichiometric (single-phase) compounds with sulfides of Ca, Li, Na, K, Al, Mg, Si, Y, La, Ce, Ga, Ba, Zr and Sr and show melting-points that are sufficiently low and have excellent wettability with many metals (Fe, Ni, Mo) to easily form metal/ceramic seals. Ceramic compositions are also formulated to adequately match thermal expansion coefficient of adjacent metal components.
Abstract:
Disclosed are DNA sequences encoding DNA binding polypeptides including androgen receptor (AR) and TR2 polypeptides. Illustratively, human and rat AR-cDNA have 79 kD and 98 kD polypeptide expression products which are immunoprecipitable by human auto-immune anti-androgens receptor antibodies and are capable of binding androgens specifically and with high affinity. Also disclosed are antibodies and immunological methods and materials for detection of androgen receptor and TR2 polypeptides and hybridization methods and materials for detection of AR-and TR2-related nucleic acids.
Abstract:
A nonimaging radiant energy device may include a hyperbolically shaped reflective element with a radiant energy inlet and a radiant energy outlet. A convex lens is provided at the radiant energy inlet and a concave lens is provided at the radiant energy outlet. Due to the provision of the lenses and the shape of the walls of the reflective element, the radiant energy incident at the radiant energy inlet within a predetermined angle of acceptance is emitted from the radiant energy outlet exclusively within an acute exit angle. In another embodiment, the radiant energy device may include two interconnected hyperbolically shaped reflective elements with a respective convex lens being provided at each aperture of the device.
Abstract:
Disclosed are purified and isolated DNA sequences encoding eukaryotic proteins possessing biological properties of inosine 5'-monophosphate dehydrogenase (''IMPDH''). Illustratively, mammalian (e.g. human) IMPDH-encoding DNA sequences are useful in transformation or transfection of host cells for the large scale recombinant production of the enzymatically active expression products and/or products (e.g. GMP) resulting from IMPDH catalyzed synthesis in cells. Vectors including IMPDH-encoding DNA sequences are useful in gene amplification procedures. Recombinant proteins and synthetic peptides provided by the invention are useful as immunological reagents and in the preparation of antibodies (including polyclonal and monoclonal antibodies) for quantitive detection of IMPDH.