Abstract: The present invention relates to a method of improving development potential of an embryo, embryos developed therefrom and organisms resulting from embryos developed from the method. In a first aspect of the present invention, there is provided a method of culturing an embryo to improve development potential, said method comprising; obtaining an embryo; and culturing the embryo to enhance trophectoderm development of the embryo. The method relates to improving the chances of an embryo implanting to result in a successful pregnancy. The embryos desirably become implantation competent favouring foetal-maternal interaction and development to term of an embryo. The trophectoderm stimulating agent may be any compound which is proven to stimulate normal trophectoderm development. Preferably the agent is fibroblast growth factor-4 (FGF4) protein.

Abstract: A golf putter having a magnetic ball marker mounted thereon, a ball retrieval and marker retrieval and putting surface repair device incorporated therein and to allow ball marker placement whereby a ball can be retrieved from a golf hole or putting surface, a marker can be placed or retrieved and a ball mark can be repaired by the user all from an erect or upright standing position.

Abstract: A grass-cutting machine comprising an internal combustion engine, and clutch means for selectively connecting the engine to at least one driven element of the machine, characterized by means for operating the clutch means using a partial vacuum generated in the induction flow path of the engine. The partial vacuum may be used alternatively or in addition to effect other control functions of the machine.

Abstract: A movement skills assessment system without a confining field includes a wireless position tracker coupled to a personal computer and viewing monitor for the purpose of quantifying the ability of a player to move over sport specific distances and directions. The monitor displays a computer-generated virtual space which is a graphic representation of a defined physical space in which the player moves and the current position of the player. Interactive software displays a target destination distinct from the current position of the player. The player moves as rapidly as possible to the target destination. As the movement sequence is repeated, velocity vectors are measured for each movement leg, allowing a comparison of transit speeds in all directions as well as measurement of elapsed times or composite speeds. The system has applications in sports, commercial fitness and medical rehabilitation.

Abstract: Nickel base superalloys in which critical amounts of boron are employed to enhance creep-rupture strength and ductility in the 1,300.degree. F-1,800.degree. F. temperature range. Creep-rupture strength and ductility at temperatures around 1,800.degree. F. also is enhanced by employing amounts of carbon below a critical upper limit. These alloys are particularly useful in the form of castings as gas turbine engine components.