Cardiovascular Computed Tomography and Magnetic Resonance: History and Growing Impact in Brazil and in the World Marcelo Souto Nacif1,2 and Carlos Eduardo Rochitte3,4,5 Hospital Universitário Antônio Pedro HUAP Setor de Ressonância Magnética e Tomografia Computadorizada Cardiovascular1; Pós-graduação em Ciências Cardiovasculares Universidade Federal Fluminense UFF2, Niterói, RJ; Instituto do Co...

Cost certainty and time certainty are major concerns to both clients and contractors, as they have a direct impact on resources. An international study of contractors’ cost certainty and time certainty is presented. Based on the performance and practice of contractors in Japan, the UK and the US, the multiple regression analysis reveals cost certainty to be influenced by time certainty and its ...

Falsification of a universal statement such as “all swans are white” requires verification of a particular statement such as “this swan is black.” Verification is an inductive process because it consists in examining one feature of the bird after another. The color of the feathers is not sufficient (the bird with black feathers could be a crow); many other features have to be compared. The iden...