An apparatus for making packages including groups of products wrapped with stretch film includes a transporting surface for conveying groups of products in a feed direction. The crane or excavator has, in accordance with the invention, a track control system, whose output values are entered directly or indirectly as input values into the control system for position or speed of the crane or excavator, whereas the set points for the control system in the track control are generated in such a way that a load movement results from it with minimized oscillation amplitudes. On one side of the waveguide sits a p-type cladding layer with a second refractive index smaller than the first refractive index. Because the pressing portion presses against the coil ends toward the armature core through an insulation ring, the coil ends are restricted from expanding by a centrifugal force when the armature rotates. The method includes assaying the expression of FOS, DUSP1, or both FOS and DUSP1 in a monocytes treated with the pharmaceutical agent, wherein a decrease the expression of FOS, DUSP1, or both FOS and DUSP1 in monocytes in the sample as compared to a control indicates that the pharmaceutical agent is effective for the treatment of atherosclerosis. The reference current thus generated is temperature compensated with zero or near-zero temperature coefficient.