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Now showing items 501-510 of 547
The effects of stimulus velocity and stimulus duration on the spatial-temporal structure and response accuracy of coincident timing responses in closed and open environments
(1981)
The purpose of the present investigations was to determine the relative and/or interactive effects of stimulus velocity and stimulus duration on the spatial-temporal structure and response accuracy of simple coincident ...
The nature of resistance to head smut Sphacelotheca reiliana (Kuhn) Clint in Sorghum bicolor Moench (L.)
(1981)
Seven sorghum inbred lines and 42 F1 hybrids from a set of diallel crosses among the lines were evaluated for reaction to head smut Sphacelotheca reiliana (Kuhn) Clint. Known vertical genes stacked into a single genotype ...
The development and testing of a systematic observation instrument with a focus on academic disruption in the classroom
(1981)
This study involved the development and testing of an observation system that allows a classroom observer to record teacher and student interactions as these interactions relate to academic disruptions. The system provides ...
The effect of relaxation training and minor tranquilizer use in the treatment of anxiety symptoms with university students
(1981)
The purpose of this study was to compare the effectiveness of medication versus relaxation in four treatment groups. The efficacy of a specific treatment group was indicated by a diminuation of symptoms of anxiety as ...
Factors influencing the growth of multiple-tree infestations by the southern pine beetle, Dendroctonus frontalis Zimmermann
(1981)
Many factors influence the ability of an infestation of the southern pine beetle, Dendroctonus frontalis Zimmermann to enlarge. These factors may relate to the characteristics of the host trees in the stand, the population ...
The characterization and catalytic activity of ruthenium exchanged zeolites
(1981)
The decomposition of the {Ru(NH(,3))(,6)}('3+) complex in both X- and Y-type zeolites was investigated using several techniques including EPR spectroscopy, infrared spectroscopy, and Electron Spectroscopy for Chemical ...
Economic implications of pollution control on Texas rangeland
(1981)
Overgrazing rangeland increases soil erosion, thus reducing its livestock carrying capacity. This study focused on the possible effects of Section 208 of P.L. 92-500 created by Congress to control soil sediment losses on ...
Citizen perceptions of appropriate levels of maintenance for parks in a major metropolitan area
(1981)
The study sought to identify public perceptions of appropriate levels of maintenance in parks, creeks and greenbelt areas in a major metropolitan area, and to explore the relationship of those perceptions as a factor in ...
Dialkylargentate (I) decompositions and the heterogenization of analogous complexes for catalyst preparations
(1981)
Lithium di-n-butyl(tri-n-butylphosphine)argentate(I) (2) and other organoargentate(I) complexes have been prepared and their mechanism of thermal decomposition studied. Chemical characterization of 2 by reaction first with ...
The evaluation of a school food service nutrition education program in New Mexico and Oklahoma public schools
(1981)
The purpose of this study was to evaluate the School Food Service Nutrition Awareness Project which was developed by the southwest region nutritionists of the Dairy Council, Incorporated (DCI), during 1979. The effectiveness ...