41. To this day, they have a reputation of being tough, emotionally labile , resilient, and very industrious. 42. The young age of the region's hills result in labile rock formations, which are susceptible to slippages. 43. The initiation rate of the Grubbs catalyst can be altered by replacing the phosphine ligand with more labile pyridine ligands. 44. Against the one-way relation of reference Gombrich argues for a weaker or labile relation, inherited from substitution. 45. It is often sufficient to replace only the solvent and labile hydrogen atoms in a protein crystal by vapor diffusion. 46. Many response regulators also auto-dephosphorylate, and the relatively labile phosphoaspartate can also be hydrolyzed non-enzymatically. 47. It is suggested that PABPC4 might be necessary for regulation of stability of labile mRNA species in activated T cells. 48. Hydrogen cyanide is produced when a solution containing a labile cyanide is made acidic, because HCN is a weak acid. 49. Unlike carbon, it can accept additional electrons and form five or six bonds in a sometimes more labile silicate form. 50. Because the phenomenon is labile , it has been used to show the effects of social influence or suggestion on judgements.