PubMed · 16209171
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Judith R Brown, Michael B McGrath. Visual learning for science and engineering.. https://doi.org/10.1109/mcg.2005.117
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Causal diagrams are rigorous tools for controlling confounding. They also can be used to describe complex causal systems, which is done routinely in communicable disease epidemiology. The use of change diagrams has advantages over static diagrams, because change diagrams are more tractable, relate better to interventions, and have clearer interpretations. Causal diagrams are a useful basis for modeling. They make assumptions explicit, provide a framework for analysis, generate testable predictions, explore the effects of interventions, and identify data gaps. Causal diagrams can be used to integrate different types of information and to facilitate communication both among public health experts and between public health experts and experts in other fields. Causal diagrams allow the use of instrumental variables, which can help control confounding and reverse causation.
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Most radiologists need to give a lecture, present research or speak at a scientific meeting at some stage in their career. In our technologically advanced world, electronic presentations have become the norm and are almost universally expected. Microsoft PowerPoint is by far and away the most commonly used computer-based presentation package. As a result most radiologists have developed at least a modicum of PowerPoint expertise but many lack the time or inclination to develop these skills further. The purpose of this article is to explain how to expand the use of PowerPoint with freely available resources from the internet, to highlight websites where useful information on advanced PowerPoint techniques can be found, and to discuss extended functions of PowerPoint likely to be of interest to radiologists such as poster design.