Open Access. Powered by Scholars. Published by Universities.®
Articles 1 - 9 of 9
Full-Text Articles in Entire DC Network
Influences On The Instrumental Music Curriculum In Ontario; 1945 - 1987, David B. Cunningham
Influences On The Instrumental Music Curriculum In Ontario; 1945 - 1987, David B. Cunningham
Digitized Theses
Recent socio—historical studies of school subject development have revealed patterns that become apparent as subjects are introduced and then gradually find a place in the curriculum. Layton and Goodson in particular have shown that some subjects, when they are first introduced, tend to be utilitarian and pedagogic in nature, but as time passes they become increasingly academic in nature. This transformation is seen to be a function of several forces that define the nature of school knowledge, including universities, teacher—training institutions, key players and professional subject associations. This thesis examines the implications of these theories, both as frameworks for the …
Bibliographic And Text-Linguistic Schemata In The User-Intermediary Interaction, Bryce Laverne Allen
Bibliographic And Text-Linguistic Schemata In The User-Intermediary Interaction, Bryce Laverne Allen
Digitized Theses
Information systems require input from their users in order to perform information retrieval. In many systems, that input is provided by interaction between users and intermediaries. The way users understand and express their information needs may be affected by the cognitive structures (schemata) by which they have organized their knowledge of the search topic, or by the schemata introduced in the questions which intermediaries ask.;The bibliographic and text-linguistic schemata studied in this research are related to two ways of thinking about textual materials. The bibliographic schema leads to an emphasis on elements of bibliographic description: authors, titles, and subject keywords. …
Ontario Hydro And Rural Electrification In Old Ontario, 1911-1958: Policies And Issues, Keith Robson Fleming
Ontario Hydro And Rural Electrification In Old Ontario, 1911-1958: Policies And Issues, Keith Robson Fleming
Digitized Theses
This thesis, based mainly on provincial and federal government and Hydro-Electric Power Commission of Ontario (HEPC) records, seeks to show how electricity was provided to the rural residents of Ontario. The first rural customers were added to the Commission's lines in 1912, and Hydro's engineers spent several years thereafter devising new applications of electricity for farm residents. Hydro tried, moreover, to create a rural rate schedule that conformed with its dictum of providing "power at cost on an equal basis to all." By 1920, the HEPC was organizing Rural Power Districts, the administrative foundation on which its rural program would …
The Analysis Of Multitrait-Multimethod Matrices: An Empirical And Monte Carlo Comparison Of Two Procedures, Richard Douglas Goffin
The Analysis Of Multitrait-Multimethod Matrices: An Empirical And Monte Carlo Comparison Of Two Procedures, Richard Douglas Goffin
Digitized Theses
This thesis evaluated the validity of the two most promising methods for Multitrait-Multimethod (MTMM) analysis. The two procedures evaluated were the Confirmatory Factor Analytic (CFA) method and the Composite Direct Product (CDP) method. These methods differ in that the former assumes that trait and method factors combine in an additive manner, while the latter assumes that a multiplicative relationship holds. The first stage in the analysis involved a comparison of the two procedures using ten empirical MTMM matrices. Monte Carlo simulations were utilized in the second stage of the analysis to provide further information that was pertinent to a comparison …
An Empirical Determination Of The Electric Dipole Moment Function And Transition Probabilities Of Hydroxyl(Chi(2)Pi), David Norman Turnbull
An Empirical Determination Of The Electric Dipole Moment Function And Transition Probabilities Of Hydroxyl(Chi(2)Pi), David Norman Turnbull
Digitized Theses
Although intensity distributions derived from hydroxyl, OH({dollar}X\sp2\pi{dollar}), airglow observations are routinely used to determine rotational temperatures and vibrational level populations, the transition probabilities required to do so are in fact inadequately known. The set now in common use has come under attack both on theoretical grounds (because of the choice of theoretical dipole moment used in its derivation) and on experimental grounds (because of its failure to represent accurately measured intensity ratios).;An electric dipole moment function (EDMF) for OH has been derived by combining recent high precision measurements of the permanent dipole moments with laboratory and airglow intensity measurements, including …
The Diffusion Of Cigarette Smoking: An Exploratory Analysis, Roberta Gail Ferrence
The Diffusion Of Cigarette Smoking: An Exploratory Analysis, Roberta Gail Ferrence
Digitized Theses
Rates of cigarette smoking vary considerably by age, sex, social class, geographic area, and period, but current theories of smoking behaviour were not intended to account for many of the major trends. A diffusion model has been used to explain the adoption, spread, and discontinuance of a number of new behaviours and techniques. In this thesis, a number of empirical generalizations developed by Rogers (1982) are tested using several approaches and data sets to determine the "goodness of fit" smoking behaviour with the diffusion model. These include predictions about the nature of the diffusion curve, the characteristics of cigarettes, and …
Increased Risk Of Death After The Loss Of A Spouse: Theory Development And Testing, Grace Marlene Johnston
Increased Risk Of Death After The Loss Of A Spouse: Theory Development And Testing, Grace Marlene Johnston
Digitized Theses
From widely reported cross-sectional data analyses, widowed and divorced men 25 to 44 years have a risk of death approximately four times that of married men their age. Relative risks of death are less for women, and decrease with age. Cohort studies of widowed persons indicate that the relative risks may be lower.;Three reasons why there might be an increased risk after the loss of a spouse are: stress of losing a spouse, loss of a protective effect of marriage, and selection into spousal status on the basis of health. A case-control study was carried out to provide empirical data …
Predicting Contaminant Concentration Values In Environmental Flows, Handson Yip
Predicting Contaminant Concentration Values In Environmental Flows, Handson Yip
Digitized Theses
A generic, small-time, asymptotic solution for the convective-diffusion equation was expressed as a three-dimensional, Hermite-polynomial expansion. This solution was used in a versatile scheme to describe mean values of concentration of contaminant in environmental flows. An analytical solution and a simple finite difference scheme was used to validate that scheme. The scheme was then used, with empirical information from the flow-field, to describe an elevated line and point source in a region of constant stress within a turbulent boundary-layer where detailed measurements of mean values of concentration of contaminant were used for comparison. The results from that comparison showed the …
Amiodarone Toxicity: Relationships To Cumulative Dose And Serum Drug Concentrations With Preliminary Observations Of Changes In Superoxide Dismutase Activity, Paul Timothy Pollak
Amiodarone Toxicity: Relationships To Cumulative Dose And Serum Drug Concentrations With Preliminary Observations Of Changes In Superoxide Dismutase Activity, Paul Timothy Pollak
Digitized Theses
Amiodarone, a cardiac antiarrhythmic agent, provides greater efficacy, more convenient dosing, and produces fewer acute adverse effects than most other antiarrhythmic agents. Toxic effects do occur during chronic therapy, of which pulmonary fibrosis is the most serious. Relationships between adverse effects, serum drug concentrations and administered dose are not yet well understood. Lamellar inclusions observed in the lung with amiodarone pulmonary toxicity resemble those from damage by superoxide free radicals in paraquat-induced pulmonary fibrosis. Observation of superoxide dismutase (SOD) activity in patients receiving amiodarone was considered a possible source of preliminary evidence that amiodarone alters free radical metabolism. A liquid …