The connectivity of a hexane-soluble silver salt is established by using NMR spectroscopy to describe the synthesis, characterization and reactivity of the salt. The results found hexane-soluble silver to be an effective transfer agent.

An experiment in which gas chromatography-mass spectrometry (GC-MS) is used for latent fingerprint extraction and analysis on glass beads or glass slides is conducted. The results determine that the fingerprint residues are gender dependent.

A procedure that requires seven 4-hour blocks of time to allow undergraduate students to prepare the molecular Borromean rings (BRs) on a gram-scale in 90% yield is described. The experiment would serve as a nice capstone project to culminate any comprehensive organic laboratory course and expose students to fundamental concepts, symmetry point…

The making of microscope devices using inexpensive or recovered materials is demonstrated. Examples of images illustrating the performance of such devices are presented. As a project at the undergraduate level, the task is effective in acquiring familiarity with optical imaging concepts and their practical implementation in the laboratory.…

A language resources center includes a large audio cassette library along with a standard dial access laboratory system. Students may check out and use cassette tapes to listen and record, and teachers may check student recordings on a flexible schedule. Tapes are also synchronized with slide series for audiovisual presentations. (CHK)

As an illustration of an attempt at dealing with the problem of time-sharing small computers for laboratory control resulting from conflicts between real-time responsiveness needs and the matter of priorities and administration of the system as a whole, a description is provided of a time-shared system that is used to control and service multiple…

A laboratory experiment, based on a simple electric circuit that can be used to demonstrate the existence of real-world "related rates" problems, is outlined and an equation for voltage across the capacitor terminals during discharge is derived. The necessary materials, setup methods, and experimental problems are described. A student laboratory…

Developed to increase student and teacher awareness of safe laboratory conditions, this guide provides information and suggestions for maintaining a safe laboratory environment. Section 1 contains a listing of potentially hazardous chemicals commonly used in secondary school science classes and section 2 lists potentially hazardous chemicals…

To demonstrate that properly designed laboratory instruction does provide affective and higher order learning benefits, an experiment was carried out in two replications. The subjects were 80 students enrolled in General Microbiology at Wallace Community College, Alabama. Students were randomly assigned to experimental and control groups. The…

A listing of business classroom and laboratory equipment, to be considered representative rather than exhaustive, was compiled from information submitted by over 100 manufacturers on their products, including office appliances, furniture, and audiovisual aids. Price is indicated for the majority of items. (AJ)

Discusses the use of rubberbands, an empty wooden thread spool, two wooden matches, a wax washer, and a small nail to conduct an experiment or demonstration in powerplant design. Detailed procedures and suggested activities are included. (CC)

This publication is the third product of the project to significantly update and reorder the Science Syllabus for Middle and Junior High Schools of the State of New York, Department of Education. The understandings, questions, and learning activities in the publication have been enhanced by the inclusion and referencing of program objectives,…

The applications of computers to the design of a course in Greek and to teaching it are discussed. Among the topics discussed are the role of the computer in teaching morphology and the use of individually tailored, computer-prepared textbooks. Hardware is also discussed. (RM)

A report on an intensive training program on language laboratory use for English teachers in Israel. The course devotes itself to "problems and principals": lab conditions, drills, testing, etc., to "materials": speaking, structure, etc. and to a technical workshop: recording, editing, etc. (SC)

Commonalities and differences in the perception of competence among three levels of medical laboratory personnel were assessed through a survey of 100 educators, chief technologists, and working technicians. Respondents rated medical technologists (MTs), medical laboratory technicians (MLTs), and certified laboratory assistants (CLAs) on 270 tasks…