4 Steps toward Inquiry Centered Teaching

Stidworthy, John. Life Begins. The Day of the Dinosaurs. Mighty Mammals of the Past. When Humans Began. Morristown, N.J.: Silver Burdett Co., 1986. Each 37 pp. $6.75 softcover Reveiwed by Donald J. Nash

McKay, David W., and Bruce G. Smith Space Science Projects for Young Scientists (Projects for Young Scientists series). New York: Franklin Watts, 1986. 127 pp. $ 10.90 hardcover (school and library binding) Reveiwed by Robert G. Hoehn

Griffin, Robert D. The Biology Coloring Book. Diamand, M. C., et al. The Human Brain Coloring Book. New York: Harper &; Row, 1986. Ill pp. (Biology) and 281 pp. (Brain) $9.95 paper

Kallenbach, Ernst. The Light Microscope: Principles and Practice for Biologists. Springfield, Il.: Charles C. Thomas, 1986. 56 pp. $14.25 softcover. Reveiwed by Robert E. Knowlton     

The Invention of Fine Art: Creating a Cultural Elite in a Marginal Community

In Puerto Limón, Costa Rica, a small group of artists have established and maintain an aesthetic hierarchy, which distinguishes art from craft, artists from artisans, men from women, elite from philistine. Canvas art is part of a cycle of aesthetic invention, where Limonenses appropriate external resources to fit certain paradigms of legitimacy and permanence. This article explores the arbitrary nature of “fine art” as a category of aesthetic practice, and how the creation of a cultural elite legitimates the production and consumption of art objects.     

大肠杆菌鞭毛调控基因flhDC与生物材料植入感染的研究进展

随着生物材料被广泛应用于临床,生物材料植入感染成为令人棘手的常见医院内感染,有报道占院内感染的50%,大肠杆菌是临床以生物材料为中心感染的优势菌种。生物材料表面的细菌生物膜使其膜内细菌能有效抵御抗生素治疗和机体的防御反应,是导致生物材料为中心感染难以控制的根源。大肠杆菌的运动性与细菌生物膜形成密切相关,鞭毛是大肠杆菌的运动器官,鞭毛的生成需要三级基因的表达,操纵子flh DC编码鞭毛生成的一级主调控基因。我们推测:"鞭毛调控基因flh DC的表达→鞭毛的生成→细菌的运动性→细菌生物膜形成"之间存在着一一对应的关系,这为临床防治生物材料植入感染提供新思路。本文就以大肠杆菌鞭毛调控基因flh DC与生物材料植入感染做一简要综述。     

Body Art

Body Art: Marks of Identity. American Museum of Natural History, New York, November 20, 1999–May 29, 2000.