claim: Heroes first season had less than 1 million viewers for each episode.
evidence: In the context of nuclear magnetic resonance -LRB- NMR -RRB- , the term magnetic inequivalence refers to the distinction between magnetically active nuclear spins by their NMR signals , owing to a difference in either chemical shift -LRB- magnetic inequivalence by the chemical shift criterion -RRB- or spin-spin coupling -LRB- J-coupling -RRB- -LRB- magnetic inequivalence by the coupling criterion -RRB- .. nuclear magnetic resonance. nuclear magnetic resonance. magnetically active. nuclear magnetic resonance. chemical shift. chemical shift. spin-spin coupling. spin-spin coupling. J-coupling. J-coupling. Since chemically inequivalent spins -LRB- i.e. nuclei not related by symmetry -RRB- are expected to also be magnetically distinct -LRB- barring accidental overlap of signals -RRB- , and since an observed difference in chemical shift makes their inequivalence clear , the term magnetic inequivalence most commonly refers solely to the latter type , i.e. to situations of chemically equivalent spins differing in their coupling relationships .. chemical shift. chemical shift. This situation can arise in a number of ways and can give rise to complexities in the corresponding NMR signals -LRB- beyond what a first-order analysis would handle -RRB- that range from the unnoticeable to the dramatic .