Additions Required

Additions and Corrections

PDBsum additions

PDBsum, http://www.ebi.ac.uk/pdbsum, is a website providing numerous pictorial analyses of each entry in the Protein Data Bank. It portrays the structural features of all proteins, DNA and ligands in the entry, as well as depicting the interactions between them. The latest features, described here, include annotation of human protein sequences with their naturally occurring amino acid variants,...

On the Minimum Number of Additions Required to Compute a Quadratic Form

Let &(x,, . . . xn) = C, ci<iGn~i~i. Vari has proved that (n 1) multiplications are necessary to compute S,,, but the minimum number of additions required to compute S, was left as an open problem in [ 1, p. 4981. We show that (2n 4) additions are necessary to compute S,, which would settle the problem. For the evaluation of the quadratic form we consider normal evaluation schemes in which all ...

Publication Ethics: Many Facets, Collaboration Required

Sir, the recent publication on “Publication Ethics” is very interesting (1). The article by Fazly Bazzaz and Sadeghi demonstrated many interesting cases                   of misconducts. Indeed, the misconducts can be seen  in many ways. As mentioned in the present publication, both author and editor can perform publication misconducts. Nevertheless, the problem has many more facets. Sometimes,...

Bibliography: Recent additions

Authors: Lindholm L, Rosen M Title: On the measurement of the nation's equity adjusted health Publisher: Sweden Health Econ 7(7): 621-8 Year: 1998 Country: Sweden