Search
Now showing items 11-20 of 147
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 ...
Aging and anomia among blacks
(1989)
The purpose of this research is to examine the relationship between aging and anomia among blacks as influenced by selected independent variables. These variables are: gender, socioeconomic status, place of residence, ...
The effect of translational energy on trapping and detection in fourier transform ion cyclotron resonance mass spectrometry
(1989)
Fourier transform ion cyclotron resonance (FT-ICR) is the observation of an image current induced by a well defined ion packet, consequently the high resolution and high sensitivity arise from the ability to produce coherent ...
The effects of certain physical and biological factors on the survival and the hatching rates of Psorophora columbiae (Dyar and Knab) (Diptera: Culicidae) eggs
(1989)
The results of laboratory tests indicated diapausing Psorophora columbiae eggs were more tolerant to the low temperatures used (8° to -6°C) than were non-diapausing eggs, particularly at temperatures equal to and below ...