A composite oxide suitable for an active material of a positive electrode for a lithium secondary cell which can be used in a wide range of voltage, has a large electric capacity and excellent low temperature performance and is excellent in the durability for charge-discharge cycles and highly safe, a process for its production, and a positive electrode and a cell employing it, are presented. Also described are pharmaceutical compositions and medicaments that include the compounds described herein, as well as methods of using such antagonists, alone and in combination with other compounds, for treating LPA-dependent or LPA-mediated conditions or diseases. In another embodiment, the control system can include at least one detection system that detects failures of a control link. In this way, the efficiency of the device for measuring the mass rate of flow using the Coriolis principle is altogether improved. In one embodiment, the support comprises a tubular needle with the distal end being pointed. The mentioned organometallic complexes can serve as emitting material or dopant for blue phosphorescent organic light-emitting devices with excellent performance.