general utility functions

aeromonas proteolytica agardhii Allardia stoliczkae angle measurement network aristogeiton biomedical receivers Dheskati Dutch gilding eccentric pole face gas cleanup growth zones laser energy open-nozzle phegopteris decursive-pinnata (.f)ee poplicola rapparees semidetached mode shearing stress strain diagram source and drain series resistance (rsd) the Blue Ridge