N-[2-[2,3,7,8-tetrahydro-1H-furo(2,3-g)indol-1-yl]ethyl]acetamide (GR196429) is a novel, nonindolic melatonin receptor agonist. GR196429 had high affinity for human mt1 (pKi 9.9) and MT2 (pKi 9.8) receptors expressed in Chinese hamster ovary cells and for 2-[125I]-iodomelatonin binding sites in human cerebellum, guinea pig superior colliculus and… (More)
We consider weak higher categories which have only a single cell in some lower dimensions. We show that bicategories with one 0-cell are monoidal categories, and tricategories with one 0-cell and one 1-cell are braided monoidal categories. We then show an analogue to this classical result for Batanin weak 3-categories.
We present several axioms in an attempt to characterize Set. A category which satisfies these axioms has many properties which can be seen to be analogous to properties of Set , and, in fact, the category is equivalent to Set .