Economies of scale and scope in mental health care

Economies of scale and scope are usually derived under the assumption that the set of production possibilities are shared by all firms in an industry irrespective of whether they specialize in a single output or not. Mental health care institutions in the Netherlands vary substantially in the scale and the number of outputs. Estimation of one...

Improving Adaptive Learning Models Using Prosodic Speech Features

Cognitive models of memory retrieval aim to describe human learning and forgetting over time. Such models have been successfully applied in digital systems that aid in memorizing information by adapting to the needs of individual learners. The memory models used in these systems typically measure the accuracy and latency of typed retrieval...

A new test setup for studying sand behaviour inside an immersed tunnel joint gap

During inspections of several immersed tunnels in the Netherlands, damage of immersion joints has been observed. In some cases the Gina seal has moved inwards from its original location, and in other cases a permanent elongation of the entire tunnel structure has been measured. For both cases it has been hypothesised that a seasonal expansion...