There’s No Substitute for a Good Substitute Teacher

No substitute for the clinician-teacher.

Substitute Teacher Networks: Learning with Almost No Supervision

Learning through experience is time-consuming, inefficient and often bad for your cortisol levels. To address this problem, a number of recently proposed teacherstudent methods have demonstrated the benefits of private tuition, in which a single model learns from an ensemble of more experienced tutors. Unfortunately, the cost of such supervision restricts good representations to a privileged mi...

'Nosodes' are no substitute for vaccines.

A growing antivaccine movement in Canada and elsewhere is hearing more about an unproven homeopathic therapy, 'nosodes', as an alternative to routine vaccines. The present statement defines nosodes and describes limitations for their use in children. There is scant evidence in the medical literature for either the efficacy or safety of nosodes, which have not been well studied for the preventio...

Virtual Substitute Teacher: Introducing the Concept of a Classroom Proxy

We describe the concept and a first prototype of a digital replacement for teacher in class. While earlier work on intelligent pedagogical agents has focused on the development of a generic idealized teacher agent, our focus lies on modeling the identity of a specific teacher, called a “classroom proxy.” We evaluate the concept of a classroom proxy in an exploratory case study and discuss the b...

Using Scrap Tires in EAFs as a Substitute for Carbon

EAF plants normally consume coal and coke as reactants, alloying elements, or fuel. The price of these materials varies from € 0.20-0.35/kg. This is while nearly 10 million pieces of tires are annually discarded in Iran. The present study shows that scrap tires can be used as a substitute for coal and coke in EAF plants. Thirteen grades of steel including low, medium, and high carbon steels as ...