We discuss 45 Costa Rican species of Ethmia Hübner, 1819, including 23 previously described: Ethmiadelliella (Fernald), Ethmiabittenella (Busck), Ethmiafestiva Busck, Ethmiascythropa Walsingham, Ethmiaperpulchra Walsingham, Ethmiaterpnota Walsingham, Ethmiaelutella Busck, Ethmiajanzeni Powell, Ethmiaungulatella Busck, Ethmiaexornata (Zeller), Ethmiaphylacis Walsingham, Ethmiamnesicosma Meyrick,...

Powell-Sabin splines are C-continuous quadratic splines defined on an arbitrary triangulation. Their construction is based on a particular split of each triangle in the triangulation into six smaller triangles. In this article we give an overview of the properties of Powell-Sabin splines in the context of computer aided geometric design. These splines can be represented in a compact normalized ...

3. K. Ichihara. E. Kusunose and M. Kusunose, Biochim. 7. J. L. Maggs. A. H. Olavesen and C. T. James. J. biophps. Acta 176. 704 (1969). labelled Compds Radiopharmaceuticals 17. 793 (1980). 4. K. K. Stanley and P. K. Tubbs. Biochem. J. 150, 77 8. C. G. Curtis. G. M. Powell and S. L. Stone, J. Physiol., (1975). Land. 213, 14P (1970). 5. W. H. B. Denner. A. H. Olavesen. G. M. Powell and 9. B. Burk...

962142. 43 In this more recent work, McGinnis and Rappaport cite Powell to instruct us on the interpretive conventions of the founding generation. Id. at 8 (citing Powell, supra note 39). And Powell at least provides McGinnis and Rappaport some useful support when he announces: "Although the Philadelphia framers did not discuss in detail how they intended their end product to be interpreted, th...