Abstract: Disclosed are constitutively active nuclear orphan receptors (CAR), which include one or more mutations which decrease the constitutive nature of CAR in vitro. The resulting non-constitutively active nuclear orphan receptors can be used to screen for agents that metabolize xenochemicals and/or steroids.

Abstract: Disclosed are constitutively active nuclear orphan receptors (CAR), which include one or more mutations which decrease the constitutive nature of CAR in vitro. The resulting non constitutively active nuclear orphan receptors can be used to screen for agents that metabolize xenochemicals and/or steroids.

Abstract: Comprising means for feeding a welding wire, means for feeding a pulse current between the welding wire and base metal, and means for controlling this pulse current feeding means, the control means controls the pulse current feeding means so as to flare up the welding wire upon arc starting, and then controls the pulse current feeding means until the pulse current becomes lower in frequency than the pulse frequency of the main welding current.

Abstract: In a consumable electrode type arc welding method, when short circuit shift welding is conducted at the start of an arc in the process of pulse arc welding and also when an inclinations of a rise or fall is decreased in the case of starting an arc in the process of pulse welding and also when an inclination of a short circuit current is increased, short circuit, which irregularly occurs at the start of an arc, can be released in a short period of time and the arc can be stabilized early. When the generation of a magnetic arc blow is suppressed, it becomes possible to form proper welding beads. Due to the foregoing, the efficiency of welding work can be enhanced.