Abstract: Ground surface comprising a substrate (110) having a Young's modulus of between 100 and 1000 GPa, and in which the ground surface has, on a working surface (120), a Vickers hardness of between 1300 and 10 000 kgf/mm2, and/or a surface coating forming the working surface, in which the surface coating contains amorphous carbon and/or titanium nitride and/or chromium nitride and/or tungsten carbide.

Abstract: Ground surface comprising a substrate (110) having a Young's modulus of between 100 and 1000 GPa, and in which the ground surface has, on a working surface (120), a Vickers hardness of between 1300 and 10 000 kgf/mm2, and/or a surface coating forming the working surface, in which the surface coating contains amorphous carbon and/or titanium nitride and/or chromium nitride and/or tungsten carbide.

Abstract: Disclosed herein are methods of treating and preventing neuronal cell loss in a subject using ornithine in combination with phenylacetate or phenylbutyrate. In some embodiments, the subject has received or will receive a surgical procedure (for example, liver transplantation) for treating a liver disease. In some embodiments, the subject suffers from a liver disease and hypotension.

Abstract: An embodiment of present invention is computer-implemented method for designing a physical system constrained by a system of equations involving variables. The method includes partitioning the variables involved in the equations into fixed variables and unfixed variables, thereby setting the system to a restricted system with a degree of freedom equal to one. The method further includes computing a parameterized curve of solutions of the restricted system in the domain of the unfixed variables. The method further includes for at least one pair of unfixed variables, displaying the projection of the curve in the product of the domains of the pair. The method further includes navigating the solutions on the parameterized curve and representing, real-time, the current navigation position on the projection of the curve. Such a method improves the design of a physical system constrained by equations involving variables.

Abstract: The invention notably relates to a computer-implemented method for designing a physical system constrained by a system of equations involving variables, the method comprising the steps of partitioning the variables involved in the equations into fixed variables and unfixed variables, thereby setting the system to a restricted system with a degree of freedom equal to 1, computing a parameterized curve of solutions of the restricted system in the domain of the unfixed variables, for at least one pair of unfixed variables, displaying the projection of the curve in the product of the domains of the pair, and navigating the solutions on the parameterized curve and representing, real-time, the current navigation position on the projection of the curve. Such a method improves the design of a physical system constrained by equations involving variables.

Abstract: A method and apparatus for controlling shadow geometry on a computer display in an interactive computer display system. The method and apparatus comprises: maintaining primary element information defining a primary element; generating shadow geometry information defining a shadow geometry, the shadow geometry information having a predetermined mathematical relationship with the primary element, the shadow geometry information being generated in response to user manipulation of the primary element; integrating the shadow geometry with the primary element to form a single graphical unit (called a "par"); and selectively displaying the secondary element concurrently with the primary element.

Abstract: A computer-aided design and drawing system having a dynamically oriented compass cursor is disclosed. In the interactive computer-controlled drawing system, a method and apparatus is disclosed for automatically generating and manipulating a dynamic compass cursor. The method comprises the steps of: 1) generating a compass cursor in a first orientation, the compass cursor being responsive to movement of a cursor control device; 2) selecting a geometrical element having a second orientation; and 3) selectively re-orienting the compass to the second orientation and maintaining the second orientation until a new orientation for the dynamic compass cursor is selected.