Abstract: A novel antibacterial peptide or peptide analog and a therapeutic use thereof for bacterial infections are disclosed. Specifically, the peptide or peptide analog has a structure in which an amphipathic, alpha-helical peptide composed of hydrophobic amino acids and hydrophilic amino acids is kinked, with a fatty acid bound to the N-terminus thereof. The peptide or peptide analogs have a therapeutic use for bacterial infections, especially, infections caused by Gram-negative bacteria.

Abstract: A passive ankle assist apparatus with a torsional coil spring for assisting an ankle joint of a user in a state of being mounted on a shoe worn by the user includes a shank frame mountable on a shank of the user, the shank frame including a guide hole, a torsional coil spring including a coil part provided in a state of being wound around a central portion a plurality of times, the torsional coil spring slidable along the guide hole, a support part configured to support the coil part, and a coupling frame configured to support the support part, the coupling frame couplable to the shoe.

Abstract: A passive ankle assist apparatus with a torsional coil spring for assisting an ankle joint of a user in a state of being mounted on a shoe worn by the user includes a shank frame mountable on a shank of the user, the shank frame including a guide hole, a torsional coil spring including a coil part provided in a state of being wound around a central portion a plurality of times, the torsional coil spring along the guide hole, a support part configured to support the coil part, and a coupling frame configured to support the support part, the coupling frame couplable to the shoe.

Abstract: A quick release coupler is disclosed herein for selectively joining the end of a wrench extension shaft and a socket which includes a resiliently mounted push button actuator carried on the shaft operably engageable by high and low points to hold or move a drive train between a lock and a release position with respect to a detent in the cavity of the socket. The drive train moves in a linear mode which is translated into a lateral movement so as to move in and out of locking relationship with the detent of the socket.