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This paper presents work conducted towards the development of an effective software engineering-based methodology for integrity control in the process of spreadsheet development. Various approaches and concepts within the discipline of software engineering are investigated. The proposed methodology consists of a set of coherent stages incorporating relevant(More)
This paper describes a framework for a systematic classification of spreadsheet errors. This classification or taxonomy of errors is aimed at facilitating analysis and comprehension of the different types of spreadsheet errors. It is far more comprehensive than any presented or published before. The taxonomy is an outcome of a thorough investigation of the(More)
BACKGROUND Cell migration has been studied extensively by manipulating and observing cells bathed in putative chemotactic or chemokinetic agents on planar substrates. This environment differs from that in vivo and, consequently, the cells can behave abnormally. Embryo slices provide an optically accessible system for studying cellular navigation pathways(More)
Analyses of the effects of election outcomes on the economy have been hampered by the problem that economic outcomes also influence elections. We sidestep these problems by analyzing movements in economic indicators caused by clearly exogenous changes in expectations about the likely winner during Election Day. Analyzing high frequency financial(More)