Abstract: A light emitting element of one or more embodiments includes a first electrode, a second electrode oppositely to the first electrode, and an emission layer between the first electrode and the second electrode. The light emitting element of one or more embodiments includes a polycyclic compound represented by a specific chemical structure in the emission layer, thereby showing improved emission efficiency and life characteristics.

Abstract: A composition containing: a compound (2); a metal compound; and at least one selected from a compound (3) and a compound (4), the compound (3) being contained in an amount of 10000 ppm or less relative to the compound (2), the compound (4) being contained in an amount of 10000 ppm or less relative to the compound (2), the compound (2) being represented by the following formula (2): the compound (3) being represented by the following formula (3): and the compound (4) being represented by the following formula (4): wherein the various substituents of compounds (2), (3) and (4) are as defined herein.

Abstract: An information processing apparatus includes: a fingerprint information acquisition unit that acquires and holds fingerprint information of a finger operating a power button with a fingerprint sensor that is integrated with the power button to boot a system; and a processor that executes authentication processing by the system based on the fingerprint information acquired by the fingerprint authentication device. At the timing when authentication processing by the system is executed by the processor, the fingerprint information acquisition unit has a first mode that holds the fingerprint information and a second mode that does not hold the fingerprint information.

Abstract: An apparatus to shorten the time taken for executing a booting process includes, in one embodiment, a connection processing unit that establishes communication with and acquires information from a plurality of devices that are communicably coupled externally to an information processing device, the information relating to the plurality of devices regardless of whether a booting process is executed. The apparatus also includes a communication control unit that executes communication with each of the plurality of devices during the booting process, and a first processing unit that one of enables or disables communication between the communication control unit and a selected one of the plurality of devices in response to the acquired information related to the selected one of the plurality of devices. A method and a computer program product also perform functions of the apparatus.

Abstract: A heat exchanger includes a tank, multiple tubes, a tube support member that supports the multiple tubes, and a shell body joined to the tube support member. The tube support member is cylindrical and includes a first-end cylindrical portion, a second-end cylindrical portion, and an intermediate cylindrical portion having a diameter smaller than that of the first-end cylindrical portion and having a predetermined length in an axial direction between the first-end cylindrical portion and the second-end cylindrical portion. The tank and the first-end cylindrical portion are welded to each other. The shell body and the second-end cylindrical portion are brazed to each other. Outer peripheral portions of the tubes are in contact with and brazed to an inner surface of the intermediate cylindrical portion.

Abstract: An apparatus to shorten the time taken for executing a booting process includes, in one embodiment, a connection processing unit that establishes communication with and acquires information from a plurality of devices that are communicably coupled externally to an information processing device, the information relating to the plurality of devices regardless of whether a booting process is executed. The apparatus also includes a communication control unit that executes communication with each of the plurality of devices during the booting process, and a first processing unit that one of enables or disables communication between the communication control unit and a selected one of the plurality of devices in response to the acquired information related to the selected one of the plurality of devices. A method and a computer program product also perform functions of the apparatus.