In geometry, a dodecahedron (Greek Î´ÏÎ´ÎµÎºÎ¬ÎµÎ´ÏÎ¿Î½, from Î´ÏÎ´ÎµÎºÎ± dÅdeka twelve + á¼Î´ÏÎ± hÃ©dra base, seat or face) is any polyhedron with twelve flat faces. The most familiar dodecahedron is the regular dodecahedron, which is a Platonic solid.
SEK - Swedish Krona. The Swedish Krona is the currency of Sweden. Our currency rankings show that the most popular Sweden Krona exchange rate is the SEK to EUR rate. The currency code for Kronor is SEK, and the currency symbol is kr. Below, you'll find Swedish Krona rates and a currency converter.
Hektoen enteric agar (HEK or HE or HEA) is a selective and differential agar primarily used to recover Salmonella and Shigella from patient specimens. HEK contains indicators of lactose fermentation and hydrogen sulfide production; as well as inhibitors to prevent the growth of Gram-positive bacteria.It is named after the Hektoen Institute in Chicago, where researchers developed the agar.EK contains indicators of lactose fermentation and hydrogen sulfide production; as well as inhibitors to prevent the growth of Gram-positive bacteria. It is named after the Hektoen Institute in Chicago, where researchers developed the agar.