Compositions and methods are provided for promoting organ development in warm blooded animals, and in particular in certain aspects a premature infant or fetus. The invention includes a bifurcated training apparatus having two operative elements, including an upper grip portion and a lower slide portion, the portions configured to be cooperatively engaged both with a golf club and each other in a defined cooperative manner. This makes it possible to optimize the engine restart control to be execute in response to satisfaction of the engine restart condition, depending on the presence or absence of the demand for vehicle start. The pre-driver circuit includes a first transistor, a second transistor, a third transistor. The center form may partition the cavity between the inner and outer wall units into two or more cavities, which may then be partially filled with, for example, insulative material or load-bearing materials, such as concrete. This permits the line length between adjacent output ports to be appropriately adjusted to a short one according to a design object, and also enables fabrication of a power divider in which output ports are aligned in a line.