Abstract: This invention relates to the treatment or prevention of nausea and/or vomiting by the administration of a NK-3 receptor antagonist.

Abstract: A particle detector for detecting particles flowing in a duct has a first triboelectric probe (5) for detecting the particles and a second triboelectric probe (3) for detecting a signal generated by contaminants on the particle detector. The presence of signal-generating contaminants on the particle detector will result in an error signal on the first probe (5) and a signal on the second probe (3). Therefore, the presence of a signal on the second probe (3) will indicate that the signal appearing on the first probe (5) includes an error signal. If the ratio of the magnitude of the signal generated on the second probe (3) to the magnitude of the signal generated on the first probe (5) exceeds a certain pre-defined limit, cleaning of the detector will be required.

Abstract: An apparatus for detecting particles in a flow comprises a probe 1 positioned so that it projects into the flow and is charged triboelectrically by the particles in the flow. An electric circuit is coupled to the probe 1 and includes evaluating means for monitoring a signal from the probe 1 and for providing an output in dependence on the signal generated by the triboelectric charging of the probe 1. The part of the probe 1 that projects into the particle flow comprises an electrically conducting core covered with an insulating layer 2 which insulates the core from the particle flow.

Abstract: In a method for detecting particles in a gas flow, a probe 8 is charged triboelectrically by particles 10 in the flow and the quantities of electrical charges transferred to the probe are evaluated to provide an indication of the particle flow in the gas flow. In order to reduce the effect of variations in "gas flow related variables" other than those relating to particle flow, an alternating component in the signal caused by the triboelectrical charging of the probe is monitored.