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Now showing items 11-20 of 611
The impact of conferencing with disruptive students and their teachers on disruptive classroom behaviors of fourth grade students
(1989)
This study was designed to determine whether disruptive behaviors can be reduced through a classroom support program of conferencing with disruptive fourth grade students and consulting with the teachers of the disruptive ...
Measurement of diffusion coefficients in the cyclohexane/toluene/polystyrene system using perturbation gas chromatography
(1989)
A semi-automated vibrating tube densimeter designed for operations between 100 and 700 K and to 70 MPa is described. This densimeter features continuous flow of the sample fluid and a fluid conditioning system that rapidly ...
Colonization and evaluation of selected exotic Hymenoptera parasites against the southwestern corn borer, (Lepidoptera: Pyralidae)
(1989)
Six exotic Hymemoptera parasite species were evaluated for parasitization of the southwestern corn border (SWCB), diatraea grandiosella Dyar (Lepidoptera: Pyralidae). Studies were conducted in the laboratory and in commercial ...
Structure and dynamics of functionalized polyethylene surfaces
(1989)
We have used spectroscopically labeled polyethylene films to investigate the effects of solvent upon the reactivity, mobility and accessibility of functional groups at the polyethylene-solvent interface. These results ...
The relationship between extracurricular activities involvement and grades in college and job placement of graduates
(1989)
The objective of this research was to complete an in-depth study on extracurricular activities involvement and grades in college and their relationship to job placement. The study focused on the following questions: (1) ...
Random and site-specific mutagenesis of bacterial luciferase : investigation of the substrate binding sites
(1989)
Luciferase from the Vibrio harveyi mutant AK-20 contains a lesion in the α subunit that results in decreased bioluminescence activity relative to the wild type. In addition, the AK-20 luciferase exhibits altered activities ...
Optimal ranch management strategies with stochastic sequential decision models
(1989)
The profitability of ranch operations are largely dependent on stochastic prices and range conditions. These variables are stochastic, but not entirely beyond the influence of ranchers. Current management decisions will ...
Tracing the causes of writing errors : a revision of error analysis procedures and assumptions
(1989)
Error analysis (EA) in composition studies attempts to determine the causes of writers' uses of nonstandard language. Typified by the work of Kroll and Schafer, Bartholomae, and Shaughnessy, traditional EA draws extensively ...
Oxytocin-induced prostaglandin release from uterine tissues : in vivo and in vitro studies
(1989)
Three studies were designed to determine: 1) if the postpartum uterus responds to oxytocin (OT) by releasing prostaglandins (PG) in a dose dependent manner; 2) compare the ability of caruncular (C) and intercaruncular (IC) ...
Estimates of genetic parameters in corn using parent/offspring regression and the intra-class correlation of half-sibs
(1989)
Genetic parameters are associated with corn kernel characteristics were estimated using parent/offspring regressions, variance components analyses and the intra-class correlations of half-sibs. The experimental and mating ...