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In neuroimaging , scientists have begun to document the effects of environment and experience on the brains of individuals with mental retardation and developmental disabilities using a variety of imaging techniques . Plaatje tours parts of the Free State and Eastern Cape to document the effect of the Act on African people . However , to help DFG biologists monitor abalone populations , the DFG encourages fishermen to document their abalone catch on free fishing days ( including date , location where taken , number taken and your name and address ) . While the extent of documentation and testing requires the use of judgment , the staff expects management to document and test relevant general IT controls in addition to appropriate application-level controls that are designed to ensure that financial information generated from a company 's application systems can reasonably be relied upon . Empirical field work is conducted to document the role of dispersal on the dynamics and genetics of spatially-structured populations .