In a prospective cohort study of professional drivers, measures of internal spinal load were better predictors of the occurrence of sciatic pain than the measures of daily vibration exposure established by the EU Directive (2002). Herniated lumbar disc, lumbar trauma and physical work load were also associated with sciatic pain.
We determine the index of five of the 7 hypergeometric Calabi-Yau operators that have finite index in Sp 4 (Z) and in two cases give a complete description of the monodromy group. Furthermore we found six non-hypergeometric Calabi-Yau operators with finite index in Sp 4 (Z), most notably a case where the index is one.
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