Methods of inducing nucleation of a material is provided. These proteins and the DNA sequences encoding them are useful to make insecticidal compositions or transgenic plants to protect plants from damage by insects, particularly coleopteran insects. The pixel sequence of the scanning line to be thickened corresponds a replacement point of the replaced pixel of the first color. The hyperbranched polyethyleneimine derivative is of the formula:x\u2212h-PEI\u2212y where R is a non-hyperbranched hydrocarbon group and the hydrocarbon group has at least one linear portion. The server encrypts the key with the identification code and sends the encrypted key to the client. A method and system enables the tailoring or managing of the dispersion, particularly chromatic dispersion, introduced onto a signal, such as a WDM signal, by an optical component, device, apparatus, system, network, etc.