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The systemic approach in studying tourism is firmly accepted in literature because of the complexity of the topic both from the supply side (the heterogeneity of goods and services making the tourism product) and the demand side (not every operator in the tourism network chain has a direct contact with tourists). To face this complexity the Input-Output(More)
The apoisozymes of cytosolic and mitochondrial aspartate aminotransferase are both irreversibly inhibited by alpha-N-fluorodinitrophenyl-beta-N-phosphopyridoxyldiaminopropi onate, an affinity-labeling reagent analog of the coenzyme. Analysis of the modified peptides shows that the active-site Lys-258, which in the holoenzyme binds the coenzyme pyridoxal(More)
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