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Power structure and school bond elections
(1969)
This study investigated the relationship of community power structure to the results of school bond elections in two Texas communities of approximately 10,000 inhabitants. The objectives of this research were to (a) identify ...
Methods of estimating cotton insect populations
(1969)
Fixed plot, negative binomial, and sequential sampling methods were carried out on cotton in Brazos County during 1966 and 1967 in order to compare the efficiency of the various methods. Increasing size and number of samples ...
Dependent state attribute acceptance sampling
(1969)
The major objective of this research is the development of attribute acceptance sampling plans involving a dependency on historical results in the decision to accept or reject inspection sampling lots. Two dependent stage ...
The effect of 2, 4-dichlorophenoxyacetic acid on the activity of phosphofructokinase in Vigna unguicula (L.) Walp. leaf tissue
(1969)
Phosphofructokinase (PFK) activity was found in all cowpea leaf tissue preparations. Phosphofructokinase activity in non-treated plant tissue preparations harvested during the light period was competitively inhibited. ...
The organometallic chemistry of the group VA elements : compounds of arsenic and phosphorus containing arsinic acid, arsonic acid, arsenyl, phophinous acid or phosphinic acid groups
(1969)
(Diethylamino)dichloroarsine and bis(diethylamino)chloroarsine have been investigated as intermediates in syntheses which lead to a variety of arsinic and arsonic acids containing branched alkyl chains and poly(polymethy ...
Influence of egg consumption and energy level on performance, and livability of layers and upon cholesterol levels of blood, egg yolk and other body tissues
(1969)
Clinicians recommend a low cholesterol diet for patients with certain heart and vascular disorders. These recommendations have sometime inadvisedly led to rejection of nutritious foods such as eggs. Since vascular cholesterol ...
Elastic analysis of thick-walled, filament-wound cylinders under combined pressure and longitudinal loads
(1969)
Fiber-reinforced composite materials are utilized in many products in industry today, especially the plastics industry, and have great potential for future use. On recent development in reinforcement methods is the use of ...
An NMR investigation of the metal ion and proton catalyzed reactions of some vitamin B-6 Schiff base systems
(1969)
The alpha and beta deuteration of the alpha amino acids valine and alpha aminobutyric acid is easily accomplished by heating D₂O solutions which are 1 M in the amino acid, 0.2 M in pyridoxal, and 0.1 M in aluminum(III) ...
The effect of programed instruction in industrial arts at the junior high school level
(1969)
Problem [line break] The primary purpose of this study was to ascertain the value of programmed instruction using teaching machines in industrial arts at the eighth and ninth grade levels through an experimental study. ...