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Portuguese emigration to Brazil : the role of the Atlantic Islands, 1530-1780
(Northern Illinois University, 1973)
From the sixteenth to the eighteenth century one of the most serious problems Portugal had to confront in her imperial planning was a lack of population. The population of Portugal itself, which varied between 1.5 million ...
The use of classically conditioned secondary reinforcement with chronic schizophrenics
(Northern Illinois University, 1973)
The possibility of a "negative conditioning" hypothesis to account for the phenomena of performance deficit in chronic schizophrenics was investigated. According to this hypothesis, certain classes of the diagnostic group ...
Preparation of trans-β-trimethylsilylvinyllithium
(Northern Illinois University, 1976)
This investigation was concerned with the synthesis of stereochemically pure cis- and trans-β-trimethylsilylvinyllithium. Although synthesis of the cis isomer was never realized, the trans isomer was prepared in 99+% ...
Lattice and electronic properties of Pd-Sn-D superconductors : a Mössbauer study
(Northern Illinois University, 1976)
Mössbauer experiments are described which were designed to investigate the lattice and electronic properties of superconducting (Pd₀.₉₉Sn₀.₀₁)D₀.₉₂ (Tc = 7.01°K) alloys. In particular, the ¹¹⁹Sn vibrational motion, <v²> ...
Primary gamma-ray transitions of tungsten-184 following thermal neutron capture in tungsten-183
(Northern Illinois University, 1973)
Primary gamma-ray transitions of ¹??W following thermal neutron capture in ¹?³W were examined using an annihilation-pair spectrometer. Energies and intensities of gamma-ray transitions in the 5 MeV - 7.5 MeV range were ...
Isotope shifts in the absorption spectrum of SeO₂ vapor near the origin
(Northern Illinois University, 1974)
The absorption spectra of gaseous selenium dioxide Se⁸⁰O₂¹⁶ and Se⁸⁰O₂¹⁸ are studied. These spectra range in absorption system B from 32100 cm⁻¹ to 36400 cm⁻¹. Band heads are listed for both Se⁸⁰O₂¹⁶ and Se⁸⁰O₂¹⁸. The ...
The origins and organization of the International Harvester Company and the beginnings of the modern market structure for agricultural machinery
(Northern Illinois University, 1972)
It is the purpose of this thesis to discuss the organization of the International Harvester Company as a function of the extreme pressures and changes going on within the harvesting machinery market. These pressures were ...
An analysis and evaluation of a pilot course in motorcycle education for high school students
(Northern Illinois University, 1970)
Safety educators have become aware of the need for motorcycle instruction as a part of traffic safety. The purpose of this study was to evaluate a pilot motorcycle education course designed for high school students. The ...
Documentation of the one man show of costume designs for Aristophanes' Birds
(Northern Illinois University, 1973)
The following work is presented in partial fulfillment of the requirements for the Master of Science degree at Northern Illinois University. The exhibition is composed of work produced between February and May. The dates ...
An application of the duo-trio just noticeable difference technique in determining the central theme of an advertising campaign
(Northern Illinois University, 1975)
The purpose of this paper was to develop a technique which would determine the central theme of an advertising campaign. In the study, five product categories were included: premium beers, non-premium beers, filter cigarettes, ...