| History and theory show that the use of naked government aggression is not a moral or efficacious way of dealing with poverty. |
| Second, proving that a supposedly life extending drug will be efficacious is an extremely difficult task. |
| A small comparison study demonstrated that these two drugs are equally efficacious. |
| No difference was noted concerning one tradition being more powerful or efficacious than any other. |
| For the higher concentrations of nitrate and oxygen in the hypolimnion during weeks 15 to 25, another mechanism might be efficacious. |
| Clinical trials are in progress and research is ongoing for developing a safe and efficacious vaccine against the disease. |
