The Glass Menagerie: diatoms for novel applications in nanotechnology.

Diatoms are unicellular, eukaryotic, photosynthetic algae that are found in aquatic environments. Diatoms have enormous ecological importance on this planet and display a diversity of patterns and structures at the nano- to millimetre scale. Diatom nanotechnology, a new interdisciplinary area, has spawned collaborations in biology, biochemistry, biotechnology, physics, chemistry, material science and engineering.

Adult identity mentoring: reducing sexual risk for African-American seventh grade students.

Purpose: This study was undertaken to determine whether the Adult Identity Mentoring (AIM) project successfully promotes abstinence, delays initiation of sex, and decreases intention to engage in sex.

Methods: Twenty middle school classes of African-American seventh graders were randomly assigned to receive either the AIM intervention or a standard health education control curriculum. The AIM is a 10-session curriculum based on the theory of possible selves.