Reports on the physical origins of spherical aberrations in axially symmetric electrostatic lenses to convey the essentials of electon optics to those who must think critically about the resolution of the electron microscope. (GS)

Deals with the subject of laser hazards, laser hazards control, and laser safety practices in the laboratory. Describes four categories of hazards: radiative, electrical, explosive, and toxic, and explains the status of federal regulations that seek to define lazer hazards and control safety standards. (Author/GS)

The following standards are affirmed by the American Medical Technologists organization: (1) regardless of the size of the laboratory setting, the patient deserves the highest quality of laboratory service available; (2) certified personnel should be employed by physicians in office laboratories; (3) quality control should be mandatory and…

At the Writing Center of the Virginia Technical Institute and State University, several methods of publicizing the writing center and developing good public relations have been developed. Through the writing center's brochure or an article in the faculty/staff newspaper, it can be made clear that writing center staff would be willing to talk to…

This lesson was developed for a course in sludge treatment and disposal. The lesson describes the Porteous heat treatment method of sludge conditioning and compares that system to the Zimpro wet air oxidation process. The theory of heat treatment, system of components and functions, and concepts of operation are addressed in the lesson. The…

Explains how the language laboratory can be used to introduce a literary text. (Text is in French.) (PP)

Describes a fellowship program for counselors where experiences place emphasis on life within an industrial complex, sensitivity to the feelings of others and the effects that they have on those feelings, counseling theory and skills, and the psychology of vocational development. (Author/PC)

Described is a visual method for teaching the principles of titration. It has been used successfully with secondary school and college level students. (RH)

Presents directions for an activity designed to illustrate the function of plant nutrients. (PEB)

Suggests new approaches to the problem of listening comprehension for advanced foreign language learners. (Author)