This paper presents an interactive module for learning both the fundamental and practical issues of servo systems. This module, developed using Simulink in conjunction with the Matlab graphical user interface (Matlab-GUI) tool, is used to supplement conventional lectures in control engineering and robotics subjects. First, the paper introduces the…

This article describes an easy and cheap laboratory exercise for students to discover their own mitochondrial haplogroup. Students use buccal swabs to obtain mucosa cells as noninvasive tissue samples, extract DNA, and with a simple polymerase chain reaction-restriction fragment length polymorphism analysis they can obtain DNA fragments of…

Describes the evolution of a course concerning the role of Spain in the Americas. Suggests that Spain has had a strong influence on the region. Explains that students participated unexpectedly well within the course's discussion seminar format. Includes an appendix setting out assigned readings and a course syllabus. (SG)