Abstract: The present invention relates to a method for producing an insulin-producing cell population or a pancreatic ? cell population having the reduced number of Ki67-positive cells, comprising treating a population of endocrine progenitor cells or cells at a later stage of differentiation with an FGFR1 inhibitor.

Abstract: Provided is a method for generating pancreatic bud cells, comprising the step of culturing PDX1+/NKX6.1? cells in a medium comprising KGF, EGY, a DMP inhibitor and an Akt inhibitor. The cells may be cultured under adherent culture conditions. PDX1+/NKX6.1? cells may be induced from pluripotent stem cells in vitro. The method of this application makes it possible to generate pancreatic bud cells from pluripotent stem cells.

Abstract: A drive device for a brushless motor executes an abnormality diagnosis (disconnection/short-circuit) of a motor side circuit. In detecting abnormality of the motor side circuit, the drive device includes a terminal voltage monitor circuit that monitors a terminal voltage of an output terminal that is connected to a motor terminal of respective phases. A microcomputer starts abnormality diagnosis under a condition where the motor is stopped, and an object to be driven has normally operated at the time of driving the motor. For executing the abnormality diagnosis, the microcomputer turns on/off only a transistor of the drive circuit of one phase in a state where all of transistors are turned off, and acquires monitor signals to execute the abnormality diagnosis based on signal levels of the monitor signals.

Abstract: A drive device for a brushless motor executes an abnormality diagnosis (disconnection/short-circuit) of a motor side circuit. In detecting abnormality of the motor side circuit, the drive device includes a terminal voltage monitor circuit that monitors a terminal voltage of an output terminal that is connected to a motor terminal of respective phases. A microcomputer starts abnormality diagnosis under a condition where the motor is stopped, and an object to be driven has normally operated at the time of driving the motor. For executing the abnormality diagnosis, the microcomputer turns on/off only a transistor of the drive circuit of one phase in a state where all of transistors are turned off, and acquires monitor signals to execute the abnormality diagnosis based on signal levels of the monitor signals.