Although common in the educational and developmental areas, multilevel models are not often utilized in the analysis of data from experimental designs. This article illustrates how multilevel models can be useful with two examples from experimental designs with repeated measurements not involving time. One example demonstrates how to properly examine independent variables for experimental stimu...

OBJECTIVE Although the sociodemographic characteristics of food-insecure households have been well documented, there has been little examination of neighbourhood characteristics in relation to this problem. In the present study we examined the association between household food security and neighbourhood features including geographic food access and perceived neighbourhood social capital. DES...

This section looks back to some ground-breaking contributions to public health, reproducing them in their original form and adding a commentary on their significance from a modern-day perspective. To complement the theme of this month’s Bulletin, Sir Richard Sykes reviews the 1929 paper by Alexander Fleming on the antibacterial action of cultures of a penicillium. The original paper is reproduc...

One approach to detecting insider misbehavior is to monitor system call activity and watch for danger signs or unusual behavior. We describe an experimental system designed to test this approach. We tested the system’s ability to detect common insider misbehavior by examining file system and process-related system calls. Our results show that this approach can detect many such activities. *

Computing systems may record facts about users such as their click behaviors, their accuracies, and their rates of recurrence, and may then act on predictions of their behaviors and preferences. However, sequences of key presses and mouse movements do not capture their immediate desires and needs during a task. Affectmediated systems, computing systems that adapt to the emotional state of users...