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Free electives that students may choose in addition to the normal course load , may be delivered in the local languages . Its rules now provide that all appeals are to be heard on the original record , and it has reduced the number of copies required to two sets of copies of the transmitted original papers ( excluding copies of exhibits , which need not be filed unless specifically ordered ) . It also permits the parties to stipulate against transmission of designated parts of the record without the fear that an inadvertent stipulation may " diminish " the record . This phenomenon , termed “ metabolic memory , ” is particularly evident for one of the complications , diabetic neuropathy . On the other hand these investigations , together with those of projects B4 , C1 ( ecotoxicological evaluation by means of biotests ) , C6 ( guidelines for dealing with contaminated sites ) , and D7 ( changes in soils caused by biological remediation ) , lead to needed information about the applicability , useful modifications and combination of the remediation procedures mentioned above .