Apresentamos e comentamos o artigo homônimo de William Thomson, originalmente publicado em 1847, no qual o autor explora a analogia entre os estados de deformação em um sólido elástico e as configurações das linhas de força de Faraday. Nele Thomson introduz pela primeira vez o potencial vetorial magnético, associando-o à deformação rotacional de um sólido. Apresentamos também um apanhado histór...

BACKGROUND Users of hospital information system (HIS) use these systems dur-ing working day and know its problems better than others know. Studying their views is very important and can be espe-cially effective in the development of the in-formation system. The aim of this study was to investigate the users' views to-wards the qual-ity of hospital information system in the training hospitals of...

OBJECTIVES To validate the QUAL-E, a new measure of quality of life at the end of life. METHODS We conducted a cross-sectional study to assess the instrument's psychometric properties, including the QUAL-E's associations with existing measures, evaluation of robustness across diverse sample groups, and stability over time. The study was conducted at the VA and Duke University Medical Centers,...

An extended visual cryptography scheme, (? Qual ; ? Forb ; m)-EVCS for short, with pixel \expansion" m, for an access structure (? Qual ; ? Forb) on a set of n participants, is a technique to encode n innocent looking images in such a way that when we stack together the transparencies associated to participants in any set X 2 ? Qual we get the secret message with no trace of the original images...