On Saturday 5th November, the Department of Chemistry and Biochemistry was open to the public (link ) . The Albrecht group welcomed hundreds of guests to our lab throughout the day, with a number of enjoyable demonstrations and hands-on experiments to both educate and entertain people of all ages. Our theme for the open day was "Zaubern mit Metal" ("Magic with Metals") and we were able to intrigue people with the colour changes of transition metal ions when reacted with different ligands, as well as the classic "Silver mirror experiment", which gave children (of all ages) something to bring home with them from the day.
Background In westernized societies, acne vulgaris is a nearly universal skin disease afflicting 79% to 95% of the adolescent population. In men and women older than 25 years, 40% to 54% have some degree of facial acne, and clinical facial acne persists into middle age in 12% of women and 3% of men. Epidemiological evidence suggests that acne incidence rates are considerably lower in nonwesternized societies. Herein we report the prevalence of acne in 2 nonwesternized populations: the Kitavan Islanders of Papua New Guinea and the Aché hunter-gatherers of Paraguay. Additionally, we analyze how elements in nonwesternized environments may influence the development of acne.