Describes the chemical analysis and rating system used at "Consumer Reports" in rating antacids. Discusses considerations made concerning dosage and duration of 12 common brands of antacid. (CW)

Discusses a revised and extended version of the Mulliken electronegativities. Describes applications and limitations implied by this version. (CW)

Discusses general statistical methods which could be employed to develop homework problems and laboratory exercises. Methods emphasize experimental design and the effects of uncertainties on inferences drawn from experimental data. (CW)

Presents experiments using wild birds as predators and pastry as prey and colored stones as background to demonstrate natural selection. Describes the exercise as an exercise in simulating natural selection. (Author/CW)

Discusses the use of Kranzberg's Laws in a history of technology course at Virginia Polytechnic Institute and State University. Lists the Laws and describes how certain reference materials are used in the course. (TW)

Describes an apparatus that uses liquified gases to wash solids. Discusses the procedures and processes used to do a wash with liquid sulfur dioxide. (CW)

Outlines a laboratory exercise that makes use of Beer's Law plots of cysteine constructed at several pH values over a broad range of wavelengths to estimate the tautomeric ratio (R) of two singly charged ionic forms, calculate the microscopic constants, and construct ultraviolet spectra for both light absorbing species. (CW)

Discusses the effects of using carbon dioxide contaminated sodium hydroxide solution as a titrant for a solution of a weak monoprotic acid and the resulting distortion of the titration curve in comparison to one obtained when an uncontaminated titrant is used. (CW)

Discusses the computer engineering industry in the United States. Recounts recent shifts in the computer industry and notes that despite foreign competition, the industry offers graduating computer engineers ample opportunities for employment. Claims that skill and technical knowledge are the most important assets for getting a job. (TW)

Described is a game especially for senior economic geology students. The game challenges them to test their skills under present market conditions in an area of high consumer risk. Discussed are preparation and management of a portfolio, conducting research on various mining companies, and final accounting for results achieved in light of…

Described are the natural trace radionuclides in ground water. Indicates the geologic origin of these radionuclides. Discusses the importance of these radionuclides. Suggests future uses of a number of additional radionuclides. (CW)

Discusses some of the possibilities for careers in computer sales. Describes some of the attributes of quality computer salespersons, as illustrated by interviews with two experts on computer sales. (TW)

Studies time intervals in a list of critical ideas in physics. Infers that the rate of growth of ideas has been proportional to the totality of known ideas multiplied by the totality of people in the world. Indicates that the rate of discovery in physics has been decreasing. (CW)

Surveys newspaper, magazine, and book literature about the Loch Ness monster from 1933 to 1983. Characterizes the literature by attitude, length, belief, and jocularity. Illuminates the problem of identifying demarcation criteria for what may be classed as science and as pseudoscience. (CW)

Reports on a study in which the Introductory Science Teacher Education (ISTE) instructional package was used to promote favorable science related attitudes in preservice teachers in Nigeria. Reports that the ISTE could produce better science related attitudes than the traditional science teacher program. (CW)