For determining use of receive diversity in a mobile station, a control system determines a demand level for use of communication resources. Accordingly, the printer is capable of receiving the print data from the peripheral device instead of receiving the print data from the computer. Vaccines and pharmaceutical compositions comprising such polypeptides, or DNA molecules encoding such polypeptides, are also provided and may be used, for example, for the prevention and therapy of leishmaniasis, as well as for the detection of Leishmania infection. The random data generator generates a random value using a system clock as a factor. The present invention also provides a process for obtaining this vaccine, as well as new monoclonal antibodies and antigens. The light generated by the point light source device enters the optical lens through the inner curved surface and exits from the optical lens through the outer curved surface.