A receiver assembly includes a bolt, a receiver having a threaded portion receiving a barrel, a barrel having a threaded portion engaged with the threaded portion of the receiver, and a crush washer positioned over the threaded portions between the barrel and the receiver to permit adjustment of the barrel relative to the receiver to achieve a proper headspacing. A gateway in a network data processing system receives an event in a native event management form. In this stack of layers, a layer in contact with the oxide semiconductor layer is a thin indium layer or a thin indium-alloy layer. The chargedischarge circuit is commonly used to check generation of the speed pulses and the periodic pulses by setting the switching voltage in accordance with a possible maximum time interval of the speed pulses. , contact information for family members professionals who provide service, emergency contacts, medical information, for example blood type, allergies, medications, blood type, organ donor status. The oxide semiconductor layer includes titanium oxide doped with niobium.