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Interdependence in Southern Africa: an examination of the relations between Zimbabwe and South Afric
Most research on southern Africa focuses on the total dependency of the region's states--Angola, Botswana, Lesotho, Malawi, Mozambique, Swaziland, zambia and Zimbabwe--upon the dominant power, South Africa. This thesis examines the relationship between South Africa and Zimbabwe and argues that these two states are more interdependent than dependency scholars would acknowledge. Although a study of the historical period reveals that dependency theory, as defined by Raul Prebisch, Andre Gunder Fran
Author(s): Mack, Natalie Diane.

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Interactions of diploid embryonal carcinoma cells and normal cell mass cells with 2.5 day mouse embr
Spontaneous teratocarcinomas are ovarian or testicular tumors which have their origins in germ cells. The tumors contain a disorganized array of benign differentiated cells as well as an undifferentiated population of malignant stem cells, the embryonal carcinoma or EC cells. These pluripotent stem cells in tissue culture share many properties with the transient pluripotent cells of the early embryo, and might therefore serve as models for the investigation of developmental events ill vitro. The
Author(s): Waters, Barbara Kathleen.

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Influence of temperature and photoperiod upon ionic regulation in rainbow trout Salmo gairdneri
Interactions of photoperiod and temperature upon waterelectrolyte balance were examined in rainbow trout acclimated to six combinations of two photoperiods {18h light: 6h dark, o 6h light: l8h dark) and three temperatures (2, 10 and 18 C). The influence of temperature and photoperiod upon plasma, skeletal muscle, cardiac muscle and liver levels of sodium, potassium, magnesi.um, calcium, chloride, water content, water distribution and cellular ion concentrations was determined by a one way analys
Author(s): Murphy, Patrick George Francis.

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Husserl's approach to transcendental intersubjectivity
It is our intention in the course of the development of this thesis to give an account of how intersubjectivity is "eidetically" constituted by means of the application of the phenomenological reduction to our experience in the context of the thought of Edmund Husserl; contrasted with various representative thinkers in what H. Spiegelberg refers to as "the wider scene" of phenomenology. That is to say, we intend to show those structures of both consciousness and the relation which man has to the
Author(s): Peterson, James Lee.

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Heterogeneity of photosystem II as it occurs in domain specific regions of the thylakoid membrane of
Thylakoid membrane fractions were prepared from specific regions of thylakoid membranes of spinach (Spinacia oleracea). These fractions, which include grana (83), stroma (T3), grana core (8S), margins (Ma) and purified stroma (Y100) were prepared using a non-detergent method including a mild sonication and aqueous two-phase partitioning. The significance of PSlla and PSII~ centres have been described extensively in the literature. Previous work has characterized two types of PSII centres which a
Author(s): McConnell, Michael D.

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Gypsy moths (Lymantria dispar) in the Niagara Region : population density variation, introduction of
The gypsy moth, Lymantria dispar, a major defoliator of broad leaf trees, was accidentally introduced into North America in 1869. Much interest has been generated regarding the potential of using natural pathogens for biological control of this insect. One of these pathogens, a highly specific fungus, Entomophaga maimaiga, was accredited with causing major epizootics in populations of gypsy moth across the north-eastern United States in 1989 and 1990 and is thought to be spreading northwards int
Author(s): Belme, Dayle M.

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Glucosamine resistance in the yeast, Saccharomyces cerivisae [sic]
By using glucosamine resistant mutants of Saccharomyces ceriv~sa~ an attempt was made to discover the mechanisms which cause glucose repression and/or the Crabtree effect. The strains used are 4B2, GR6, lOP3r, GR8l and GRI08. 4B2 is a wild type yeast while the others are its mutants. To characterize the biochemical reactions which made these mutants resistant to glucosamine poisoning the following experiments were done~ 1. growth and respiration; 2. transport of sugars; 3. effect of inorganic ph
Author(s): Maheshwari, Prem Lata.

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Genetic variability in Larus argentatus and Sterna hirundo
Blood serum and egg-white protein samples from individuals representing seven colonies of Larusargentatus, and four colonies of Sterna hirundo were electrophoretically analysed to determine levels of genetic variability and to assess the utility of polymorphic loci as genetic markers. Variability occurred at five co-dominant autosomal loci. S. hirundo protein polymorphism occurred at the Est-5 and the Oest-l loci, while nineteen loci were monomorphic. L. argentatus samples were monomorphic at se
Author(s): Melvin, George Ian.

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From being ill in time to love of eternity
N/A
Author(s): Rosenkranz, Raymond.

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Fimbriae of coprinus cinereus, schizophyllum commune and ustilago violacea = structural aspects and
Surface fibrils (fimbriae) have been observed on fungi from every major group. Fimbriae are thought to be involved in the following cell to cell interactions: conjugation, flocculation and adhesion. Several higher fungi exibit two other types of interactions: hyphal fusion (anastomosis) and clamp connection formation. As a prelude to examining the role of fimbriae in these processes, the fimbriae of two fungi that undergo these fusion events were examined. Electron microscopy studies revealed th
Author(s): Boulianne, Robert P.

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Fast atom bombardment mass spectrometry studies of ruthenium (II) polypyridy coordination complexes
In order to investigate the use of Fast Atom Bombardment Mass Spectrometry (FAB-MS) as a tool for structural characterization, two groups of complexes are analyzed. The first group is a set of ruthenium(II) coordination complexes containing bidentate polypyridyl ligands. The positive and negative ion FAB-MS spectra are found to be sufficient to allow for an almost complete characterization of the central metal atom, the ligands and the counter anions contained in the intact complex. An unusual o
Author(s): Nye, Jeffrey W.

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Factors influencing the seasonal changes in primary productivity of the photosynthetic bacteria of C
A naturally occurring population of photosynthetic bacteria, located in the meromictic Crawford Lake, was examined during two field seasons (1979-1981). Primary production, biomass, light intensity, lake transparency, pH and bicarbonate concentration were all monitored during this period at selected time intervals. Analysis of the data indicated that (l4C) bacterial photosynthesis was potentially limited by the ambient bicarbonate concentration. Once a threshold value (of 270 mg/l) was reached a
Author(s): Severn, Shawn R. T.

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Factors affecting treatment decision making for women with breast cancer
This study examined the factors affecting treatment decision making for young women with early stage breast cancer. Thirty women, aged 35 to 52 years, were presented information about two equally effective chemotherapy treatments following surgery for breast cancer using an educational instrument called a "decision board." Although equally effective, the treatments differ with regards to side effects and treatment schedule. The purpose of this research was to investigate what factors affect the
Author(s): Irwin, Ellen M.

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Factors affecting DNA uptake by mammalian cells
The ability to introduce DNA and express custom DNA sequences in bacteria opened the door for improvements in a large number of fields including agriculture, pharmacology, medicine, nutrition, etc. The ability to introduce foreign DNA sequences into mammalian cells in an efficient manner would have a large impact on therapeutic applications especially gene therapy. The methods in use today suffer from low efficiencies and sometimes toxicity. In this work a number of factors were evaluated for th
Author(s): Cheikha-Douaihy, Saiid

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Exploring the potential of early identification and intervention within a college of applied arts
This study probed for an answer to the question, "How do you identify as early as possible those students who are at risk of failing or dropping out of college so that intervention can take place?" by field testing two diagnostic instruments with a group of first semester Seneca College Computer Studies students. In some respects, the research approach was such as might be taken in a pilot study. Because of the complexity of the issue, this study did not attempt to go beyond discovery, understan
Author(s): Milligan,Victoria R.

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Exploring the effects of change on nursing practice in acute ambulatory care settings : a qualitativ
As a result of the current changes taking place in the delivery of acute care services, the emergence of acute ambulatory care (AAC) settings is expanding. According to a literature review, the volume, acuity, and complexity of patient care in these settings is increasing while the time the patients spend under the care of nurses is decreasing. Two forces, hospital downsizing and advancing technology, are identified as the major contributors to the shift in acute care delivery. The effects that
Author(s): Martinus, Louise L.

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Evaluation of self-esteem before and after preceptorship experience for student nurses
seventy-eight diploma nursing students participated (from a class of 112 students) in completing the Coopersmith Self-Esteem Inventory administered by mailed questionnaire before and at the end of the preceptorship. Also a rating form was completed by 70 preceptors to determine how the observed level of self-confidence compared to self-reported self-esteem at the end of the preceptorship program. As well, four preceptors and five preceptees completed weekly diaries and six preceptors and six pre
Author(s): Gardner, Robin.

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Ethics in government and business
Canadians appear to hold the activities of those in government and in big business in low esteem. Media reports of several high-profile political and corporate instances of unethical conduct have reinforced the public's concern for the status of ethical conduct and honesty in government and in big business. The response by public and private sector managers to unethical conduct by employees is largely in the form of 'ethical rules' which both sectors agree provide a measure of certainty as to th
Author(s): Dix, Jacqueline A.

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Environmental assessment and biomonitoring of the Twelve Mile Creek watershed, Niagara Peninsula, On
In light of the heavy reliance of the people of the Niagara Peninsula on the T\\'elve Mile Creek (TMC) watershed for recreational activities and for municipal and industrial uses ( e.g., drinking water, shipping and discharge of effluents), it was deemed prudent to assess the envirol1tnental health of the system by analysing the sediments total and exchangeable metal, and TPH contents. The MOEE has set guidelines with limits for the protection and management of aquatic sediments, and the sedimen
Author(s): Campbell, Ian T.

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Engineers and technicians : the effect of cognitive style and gender on visual information processin
The purpose of this project was to identify in a subject group of engineers and technicians (N = 62) a preferred mode of representation for facilitating correct recall of information from complex graphics. The modes of representation were black and white (b&w) block, b&w icon, color block, and color icon. The researcher's test instrument included twelve complex graphics (six b&w and six color - three per mode). Each graphics presentation was followed by two multiple-choice questions. Recall perf
Author(s): Lindsey, Glenn R.

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