1.   But at that time, biologists also saw sick, disoriented manatees acting strangely by curling their lips and arching their backs.

2.   Decisions on a new constitution would have to be reached by a two-thirds majority of the assembly, whilst in other matters it would act by consensus.

3.   For example, insecticides and nerve gases act by blocking the removal of acetylcholine.

4.   Kaolin is used as an antidiarrhoeal agent, acting by adsorption of bacteria and toxins.

5.   It may act by a novel mechanism and offers a further therapeutic possibility for those who are intolerant of aminosalicylates.

6.   TAGH might be acting by enhancing the effect of the physiological levels of ligands of the EGF receptor in the hepatocyte environment by phosphorylation of the EGF receptor.

7.   The data presented here suggest that these compounds may act by impairing the binding of IFN to its receptor on the colonic epithelial cell.

8.   There is considerable evidence to show that many chemical carcinogens act by forming stable covalent bonds with cellular macromolecules such as DNA.

9.   Some authors have suggested that somatostatin may act by a direct vasoconstrictive effect on the splanchnic arterioles or may lower intestinal vasodilating hormones and glucagon.

10.   Agents for the treatment of TIH act mainly by inhibiting bone resorption.