This article explores the role of annotations as reflection amplifiers while studying in an Open Educational Resources distance course. A controlled experiment reveals that the treatment groups using frequent and local annotations did not perform better at the test. However, measures within the treatments exhibit a moderate but significant improvement of the mark in the group composed of high a...

This article aims to present as simply as possible the fundamental principles of operation of electrophysiology amplifiers and to explain how to obtain high-quality recordings.

................................................................................................................................ i Preface .................................................................................................................................. ii