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As in many other arthropods, the neuropeptide proctolin enhances contractures of muscles in the crustacean isopod Idotea emarginata. The enhancement of high K+-induced contractures by proctolin (1 micromol l-1) was mimicked upon application of the protein kinase C (PKC) activator phorbol-12-myristate 1-acetate (PMA) and was inhibited by the PKC inhibitor(More)
The exhibition " Atapuerca: our ancestors " was presented at the Museo Nacional de Ciencias Naturales (Madrid, Spain) during 1999-2000. The objective of this exhibition was to show the discoveries made at the paleoanthropological site of Atapuerca (Burgos, Spain). In Atapuerca, one of the most important Pleistocene sites of the world, more than 3,000 human(More)
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