Development of a competency-based formative progress test with student-generated MCQs: Results from a multi-centre pilot study.

Introduction: Progress tests provide students feedback on their level of proficiency over the course of their medical studies. Peer-assisted learning and competency-based education have become increasingly important in medical education. Although progress tests have been proven to be useful as a longitudinal feedback instrument, there are currently no progress tests that have been created in cooperation with students or that focus on competency in medical education.

Intermediates in the barnol biosynthesis in Penicillium baarnense.

By using appropriate 14C-labelled phenolic substances as precursors in feeding experiments the following steps in barnol biosynthesis have been established: acetate + malonate leads to 2,4-dihydroxy-6-ethyl-5-methylbenzaldehyde leads to 1,3-dihydroxy-4,6-dimethyl-2-ethylbenzene leads to barnol. P. baarnense can also reduce orcylaldehyde and 2,4-dihydroxy-5,6-dimethylbenzaldehyde to dimethylresorcinol and trimethylresorcinol, respecitively.