In this paper, we use evidence from our earlier review of surgical randomised controlled trials with a placebo arm to show that blinding in trials of interventional procedures is feasible. We give examples of ingenious strategies that have been used to simulate the active procedure and to make the placebo control indistinguishable from the active treatment. We discuss why it is important to bli...

While there is a need for business process management professionals in economy, enrolment in IS programs is declining. The resulting gap is even widened by early terminations of students due to various reasons. Missing motivation, as one of these reasons, is tackled by the Active Lab course concept presented in this paper. Such Active Labs are inspired by Social BPM Labs, which represent course...

We handle design problems with modeling and optimization. Sometimes this procedure is under question due to the lack of knowledge about the design constraints, especially when human evaluation is involved. In this work we look into the problem of indentifying constraints when they are not physically available and can only be identified by trial. The solution is indeed an application of active l...

We handle design problems with modeling and optimization. Sometimes this procedure is under question due to the lack of knowledge about the design constraints, especially when human evaluation is involved. In this work we look into the problem of identifying constraints when they are not physically available and can only be identified by trial. The solution is indeed an application of active le...

abstract the prediction of active earth pressures is essential to the design of retaining walls in case of reinforced and unreinforced soils. in this study, a new analytical method is presented to determine the coefficient of earth pressure. the horizontal slice method is used to compute the active earth pressure behind a rigid retaining wall in consideration of the granular soils. to verify th...