Abstract: The present invention provides Wnt pathway agonists and related compositions, which may be used in any of a variety of therapeutic methods for the treatment of diseases.

Abstract: A car-parking and rotating mechanism including a controlling unit, four retrieving cylinders, four lifting cylinders and four transmisssion units each of which includes a two-way motor and a driven wheel. The controlling unit includes a controlling panel and an electric oil pump connected to a car battery serving as a power supply. The retrieving cylinder, lifting cylinder and transmission unit are disposed under a chassis of the car, whereby the controlling panel is selectively operated to control the movements of the four retrieving cylinders and lifting cylinders so as to lift the car on one side or all sides and the two-way motors of the transmission unit is controlled by the controlling panel to rotate clockwise or counterclockwise for driving the driven wheel so as to transversely move the car left or right into a parking site or rotate the car.

Abstract: A steerable wheel assembly for use on a roller skate is disclosed. The wheel assembly consists of a wheel having a roller bearing inserted into each side thereof and a shaft installed between the roller bearings. The shaft has journals machined on each end thereof which are fitted into inner rings of the aforementioned roller bearings to enable the wheel to rotate. Machined through the center of the shaft is a channel having a flat upper surface, a lower surface and two slanted surfaces, into which an axle is inserted. The axle includes four flat surfaces and, more specifically, two slanted surfaces which are parallel to and offset a predetermined clearance distance from the two slanted surfaces of the channel, a top surface and a bottom surface. The top and bottom surfaces of axle the are parallel to and positioned at a predetermined distance from the upper and lower surfaces of the channel respectively. The axle pivots on centered ball bearings and is supported on the bottom by elastic cushions.