amental principle of trust. The ASBMB encourages its members to engage in the responsible practice of research required for such trust by fulfilling the following obligations." *
             Apart from the ethical norms, the codes contain methodological, professional, and social norms. It proves that the scientists realize their duty to their research as well as to their colleagues and the society. The content of the ethical codes includes certain "ought to" clauses, but they are also an expression of the inner conviction of the scientist about right or wrong, not an obligation imposed from outside.
             Codes secure the co-existence of the researcher's freedom and the obligations, responsibilities and restrictions, imposed by the professionalized, paid scientific labour. They are an expression of the removed contradiction - freedom and restrictions, which takes the form of a voluntary accepted duty and in this way the autonomy guaranteeing the freedom needed for the scientific research is preserve
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