A novel method of studying the generation of genetic diversity in an undergraduate microbiology laboratory is described. The basis of this approach is the accumulation of mutations that confer a competitive advantage, or growth advantage in stationary phase (GASP) phenotype, to E. coli grown in stationary phase for extended periods of time.

The hazards of silver used in the laboratories are described for the benefit of the students and the teachers. The exposure limits and symptoms due to acute exposures are also mentioned.

The hazards caused by calcium used in the laboratories are described. The exposure limits and symptoms of acute exposures are mentioned.

A real-life experience that provides an ideal opportunity to combine problem-solving skills, critical thinking, and collaborative learning is described in the content of a realistic instrumental analysis laboratory. This practical experiment can be used in an instrumental analysis or analytical course.

An attempt was made to state the problems and find solutions as to how practical laboratory experience can contribute to meaningful learning. It is observed that laboratory experience is one of the most important requirements for connecting students' appreciation of chemistry with the world in which they reside.

An important challenge for both students and teachers of physiology is to integrate the differentareas in which physiological knowledge is didactically divided. In developing countries, such an issue is even more demanding, because budget restrictions often affect the physiology program with laboratory classes being the first on the list when it…

Presents the lecture given by the Millikan Award winner on a global study of the role of the laboratory in physics education. Discusses physics education in India, Malaysia, Great Britain, and the United States. (NB)

The green polymerization of aspartic acid carried out during an organic-inorganic synthesis laboratory course for undergraduate students is described. The procedure is based on work by Donlar Corporation, a Peru, Illinois-based company that won a Green Chemistry Challenge Award in 1996 in the Small Business category for preparing thermal…

During the last few years, the number of university students choosing to follow engineering degrees has decreased dramatically in Spain. For that reason, several university departments, in collaboration with some high schools, have developed a range of activities in order to promote a higher enrollment rate, to improve the level of mathematics and…

There are few studies of the impact of ubiquitous computing on high school science, and the majority of studies of ubiquitous computing report only on the early stages of implementation. The present study presents data on 3 high schools with carefully elaborated ubiquitous computing systems that have gone through at least one "obsolescence cycle"…

This article describes a forensic DNA science laboratory exercise for advanced high school and introductory college level biology courses. Students use a commercial genotyping kit and genetic analyzer or gene sequencer to analyze DNA recovered from a fictitious crime scene. DNA profiling and STR genotyping are outlined. DNA extraction, PCR, and…

Core concepts can be integrated throughout lower-division science and engineering courses by using a series of related, cross-referenced laboratory experiments. Starting with butane combustion in chemistry, the authors expanded the underlying core concepts of energy transfer into laboratories designed for biology, physics, and engineering. This…

Many general physics laboratories involve the use of springs to demonstrate Hooke's law, and much ado is made about how this can be used as a model for describing the elastic characteristics of materials at the molecular or atomic level. In recent years, the proliferation of computers, and appropriate sensors, have made it possible to demonstrate…

Cardiac physiology is emphasized in many undergraduate physiology courses, but few nonmammalian vertebrate model systems exist that 1) can be studied fairly noninvasively, 2) are well suited for controlled experimentation, and 3) emphasize principles characteristic of the vertebrate heart. We have developed an inquiry-based…

Librarians instruct students where to find information, but rarely demonstrate its management, while faculty have difficulty incorporating real-time laboratory experience with library research. This paper focuses on the development of a hands-on biology laboratory experiment in an introductory course that integrates bibliographic software into the…