Abstract: Provided herein are compounds of Formula (I), their pharmaceutically acceptable salts, and their pharmaceutical compositions: wherein R1, R2, R3a, R3b, R4, R5, and A are defined in the present disclosure. The compounds are potent inhibitors of the main protease (Mpro) of severe acute respiratory syndrome Coronavirus-2 (SARS-CoV-2), and they are useful in treating or preventing COVID-19 in a subject.

Abstract: The present invention relates to a wireless transceiver system that removably connects to a device, such as a camera, to allow transmission of data therefrom through a network. The wireless transceiver system of the present invention comprises a module, a cradle, and an application accessory. The application accessory is a device into which the cradle is permanently and electronically connected. The application accessory can be a digital camera, a cellular phone, a portable computer, an MP3 player, a television, a watch, or any electronic device that can be connected to a network through a communication device in the module. The module is removably connected to the cradle. This allows the module to serve as a removable communication device that can be shared by multiple application accessories. In addition, the module can serve to lock out unauthorized users from using a specific application accessory.

Abstract: The present invention relates to a wireless transceiver system that removably connects to a device, such as a camera, to allow transmission of data therefrom through a network. The wireless transceiver system of the present invention comprises a module, a cradle, and an application accessory. The application accessory is a device into which the cradle is permanently and electronically connected. The application accessory can be a digital camera, a cellular phone, a portable computer, an MP3 player, a television, a watch, or any electronic device that can be connected to a network through a communication device in the module. The module is removably connected to the cradle. This allows the module to serve as a removable communication device that can be shared by multiple application accessories. In addition, the module can serve to lock out unauthorized users from using a specific application accessory.

Abstract: An silver island anti-fuse including a first electrical conductor, an electrically resistive material in contact with the first conductor and at least one silver island disposed opposite the first electrical conductor and upon the electrically resistive material. A second electrical conductor disposed over the silver island intimately couples the silver island to the electrically resistive material. When a critical potential is applied across the anti-fuse, a metallic filament precipitates from the silver island through the electrically resistive material layer, establishing a short and thus switching the silver island anti-fuse from a high resistance to a low resistance. A method of making the silver island anti-fuse and a memory device incorporating the silver island anti-fuse are further provided.

Abstract: An upholstered sofa bed for mounting on a substantially horizontal surface comprising a frame member including right and left spaced vertical arm frame sections each having side support members, a back frame section interposed between the right and left frame sections, and a front frame section interposed between the right and left arm frame sections. A platform member is provided which includes a front platform section having at least one support leg retractably attached thereto, and a back platform section.