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These are errors which indicate that the entire message is corrupt and can not reliably be associated with any particular transaction or , if it can be associated with a transaction , the interior information in the message can not be reliably accessed . The topic of the direct study can not be exactly the same as the student 's thesis topic . While the long-range goal of MSHIS was to standardize the types of data collected , it was learned that for some UHDS items , data from one site can not be validly compared to another site . Although other elements of democracy can develop before competitive elections are held , a country can not be truly democratic until its citizens have the regular opportunity to choose their representatives . So a function of this form can not be very random !