Discusses how to interpret nuclear magnetic resonance (NMR) spectra and how to use them to determine molecular structures. This discussion is limited to spectra that are a result of observation of only the protons in a molecule. This type is called proton magnetic resonance (PMR) spectra. (CW)

Details two demonstrations for use with an overhead projector in a chemistry lecture. Includes "A Very Rapidly Growing Silicate Crystal" and "A Colorful Demonstration to Simulate Orbital Hybridization." The materials and directions for each demonstration are included as well as a brief explanation of the essential learning involved. (CW)

Describes a one-semester course designed to teach first year graduate students how to extract, interpret, evaluate, and use the information provided by an X-ray crystallographic crystal structure determination. Presents a course outline and discusses the treatment of crystal composition, crystallographic parameters, molecular geometry and…

Explores how an existing program can be adapted for remote control. Compares the output on the screen of an Apple II computer with its equivalent on the braille display of the VersaBraille. Points out some of the advantages of using a data base as a customized information center. (CW)

In this article, part I of a series, the forensic methods used in "typing" human blood, which as physical evidence is often found in the dried state, are outlined. Background information about individualization, antibody typing, fresh blood, dried blood, and additional systems is provided. (CW)

Defines and discusses activated complexes, transition species, and reaction intermediates in composite reactions. Stresses the importance of the precise use of language in science. (CW)

Proposes a series of experiments that integrate analytical techniques in order that students are able to compare, based on their laboratory results, the relative reliabilities of the most common therapeutic drug monitoring methods. Discusses materials, procedures, and results of three experiments on the determination of drug concentration by…

Describes a simple, inexpensive experiment in which students determine the heats of combustion of common solid, liquid, and gaseous fuels. The experimental apparatus, procedures, calculations and results are discussed. (CW)

Introduces a photogate arrangement using a photo-reflective sensor for air track experiments. Reports that the sensitivity to sunlight can be eliminated and a mechanically more convenient package produced. Shows the mounting, circuit, and usage of the photogate. (YP)

Traces the evolution of instructional computing in the design and control courses. Discusses process design, process control, and expert systems. Concludes that the computing tools for undergraduate instruction are mostly in step with design and control practice in chemical engineering. (CW)

Describes a program to support lectures on analytical centrifugation, and to illustrate the manner in which useful analytical data about macromolecules can be obtained from simple centrifugation studies without the need for mathematical expertise. Discusses the background, methods, calculations, and results involved in this activity. (CW)

Discusses the role of the fruit fly in genetics research requiring a multidisciplinary approach. Describes embryological and genetic methods used in the experimental analysis of this organism. Outlines the use of Drosophila in the study of the development and function of the nervous system. (RT)

Describes three methods and their advantages and disadvantages for introducing genes into animals. Discusses the predictability and tissue-specificity of the injected genes. Outlines the applications of transgenic technology for studying gene expression, the early stages of mammalian development, mutations, and the molecular nature of chromosomes.…

Details a rationale for teacher shared information. Outlines possible content to include in such a network. Describes advantages and implications a database might have for teachers. (RT)

Reports on the evaluation of two programs which followed the master teacher training model espoused by the National Science Foundation, but used different types of master teachers and activities. Different results were produced from the two evaluation methods; using both methods provided a clearer view of the strengths and weaknesses of the…