AS PART OF A LARGER STUDY OF CAREERS IN THE MENTAL HEALTH FIELD BEING MADE AT THE UNIVERSITY OF CHICAGO, THIS INVESTIGATION STUDIED (1) A MODEL FOR STUDYING PROFESSIONAL BEHAVIOR, (2) EXTENT TO WHICH PROFESSIONAL, IDEOLOGICAL, AND INSTITUTIONAL FACTORS INFLUENCE PROFESSIONAL FUNCTIONS, AND (3) IMPLICATIONS FOR UNDERSTANDING PROFESSIONAL ADULT…

The publication contains an outline for use by agriculture teachers in developing a teaching plan for a unit on paints and preservatives. The topics included are (1) recognizing, solving, and preventing paint problems and (2) operating and using power spray painting equipment. Items presented for each topic are: the situation, (intended to inform…

Describes few heat demonstrations where the use of a coolant spray could enhance their effectiveness. (GA)

The aim of this study is to design and develop a Physically Interactive Learning Environment, the PILE system, by integrating video-capture virtual reality technology into a classroom. The system is designed for elementary school level English classes where students can interact with the system through physical movements. The system is designed to…

Computer simulations under three conditions of polytomous differential item functioning (DIF) compared the ability of three different statistical procedures to detect nonuniform DIF. The procedures were a nominal and an ordinal extension of the Mantel-Haenszel statistic, and logistic discriminant function analysis. Results showed that only the…

The difference between day and night seems to have been almost completely overlooked in environmental studies. Suggests incorporating day/night phenomena/activities (from biological, psychological, and social points of view) in studies on environmental perception and on human behavior and environmental responses. (Author/JN)

This guide presents information on controlling insect pests of ornamental trees and shrubs. It is organized for easy reference by nurserymen, arborists, and others desirous of controlling insect damage. General information given includes notes on spraying and sprayers, insecticides, general purpose sprays, phytotoxicity, and health precautions.…

Describes a diffraction experiment that uses circular holes salvaged from nonaerosol hair spray bottles to produce spectacular circular interference fringes. (JRH)

Leaks in the old copper roofs of Hamilton, Dodge, and Kent Halls at Columbia University were stopped by application of a vinyl-spray plastic membrane. (Author)

A phenol-based preparation, used as a gargle or a spray, and a warm saline gargle are perceived to be equally effective in reducing pain and swelling in sore throats. Choices as to which method to use should be a joint decision between the physician and patient. (CJ)

Presents eight chemistry activities that are interesting and involve simple, easily available materials. Topics include mystery writing, valentine hearts, flame tests, evaporation race, buoyancy versus mass, determination of relative masses of gases, mole sample container, and cold and hot packs. (DDR)

Flame tests are used for demonstration of atomic structure. Describes a demonstration that uses spray bottles filled with methanol and a variety of salts to produce a brilliantly colored flame. (Contains 11 references.) (ASK)

This document discusses methods of calibration for chemical sprayers to insure proper control of the target plant or insect. Both granular and spray application techniques are presented with special emphasis given to computing chemical mixes properly. (CS)

Test data generated according to two different multidimensional item response theory (IRT) models were compared at both the item response level and the test score level to determine whether measurable differences between the models could be detected when the data sets were constrained to be equivalent in terms of item "p"-values. The…