Corrigendum Corrigendum to ‘‘Preface: The challenge of modelling aggregated human behaviour’’ [Math. Comput. Modelling 57 (2013) 1617–1618] Lucas Jódar a, Elena de la Poza b, Juan Carlos Cortés a, Luis Acedo a,∗ a Instituto Universitario de Matemática Multidisciplinar, Universitat Politècnica de València, Spain b Departamento de Economía y Ciencias Sociales, Universitat Politècnica de València,...

Extended-spectrum -lactamases (ESBLs), such as the plasmid-mediated class A TEMand SHV-type enzymes, have developed by stepwise mutations in their structural genes, resulting in either single or multiple amino acid changes in the encoded enzymes, and these changes sufficiently remodel the active site to allow attack on aminothiazolyl compounds. Since they were first identified at the beginning ...

Principal Component Analysis (PCA; Pearson, 1901) is a widely used method for data compression. The goal is to find the best low rank approximation of a given matrix, as judged by minimization of the `2 norm of the difference between the original matrix and the low rank approximation. However, the classical method is not resistant to corruption of individual input data points. Recently, a robus...

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ABET has recently proposed to expand its list of program criteria to include criteria for systems and similarly named engineering programs. Industrial engineers have often claimed the ownership of the phrase “systems engineering,” even incorporating it into the names of some departments, e.g., industrial and systems engineering. While defining terms can be a sterile exercise, in this paper we c...