On Medicine and Boundaries: Frost’s Mending Wall

Rough boundaries and wall laws

We consider Laplace and Stokes operators in domains with rough boundaries and search for an effective boundary condition. The method of homogenization, coupled with the boundary layers, is used to obtain it. In the case of the homogeneous Dirichlet condition at the rough boundary, the effective law is Navier’s slip condition, used in the computations of viscous flows in complex geometries. The ...

Mending Mendelism

Mending Minds

Mending Minds. By Paul Winterton. Peter Davies, 1938, 8/6. This book is the result of an investigation undertaken on behalf of one of our great daily newspapers into the conditions obtaining in the Public Mental Hospitals of England and Wales and the subject of mental disease and its treatment in general. Whatever was the original intention of the investigation, the book actually constitutes pe...

Mending Minds

On the Difficulty of Mending Metacognitive Illusions

Interleaving exemplars of to-be-learned categories—rather than blocking exemplars by category— typically enhances inductive learning. Learners, however, tend to believe the opposite, even after their own performance has benefited from interleaving. In Experiments 1 and 2, the authors examined the influence of 2 factors that they hypothesized contribute to the illusion that blocking enhances ind...