The purpose of the study was to identify the components of an effective workplace mentorship. Twenty-five panelists participated in a three-round Delphi study to reach a consensus on these components. The panelists were (1) local school-site teachers and school-to-work coordinators, (2) community college school-to-work coordinators, (3) directors of tech-prep consortia, and representatives from (4) business and industry, (5) labor and management, (6) corporate rsearch, and (7) federal government. A two-round pilot study was conducted to test the initial open-ended questions for round 1 and to test the survey instrument developed for round 2. Feedback from the pilot study was used to develop the open-ended questionnaire instrument in round 1 and the Likert scale used in round 2 of the study. Criteria of an effective workplace mentorship were retained in both rounds 2 and 3 if 80% of the respondents rated them "important" or "very important." The study produced 93 criteria in five categories necessary for an effective workplace mentorship. The five categories were: (1) program structure; (2) recruitment, selection, and placement; (3) support activities; (4) program outcomes and evaluation; and (5) ethics. A sixth category, barriers and obstacles to an effective workplace mentorship, was included in the survey and contained four responses. These four responses were summarized along with the 93 criteria of an effective workplace mentorship. A checklist of criteria is included for the assessment of existing programs or to aid those implementing new programs. / Ed. D.

Advances in FPGA density and complexity have not been matched by a corresponding improvement in the performance of the implementation tools. Knowledge of incremental changes in a design can lead to fast turnaround times for implementing even large designs. A high-level overview of an incremental productivity flow, focusing on the back-end FPGA design is provided in this thesis. This thesis presents a management paradigm that is used to capture the design specific information in a format that is reusable across the entire design process. A C++ based internal data structure stores all the information, whereas XML is used to provide an external view of the design data. This work provides a vendor independent, universal format for representing the logical and physical information associated with FPGA designs. / Master of Science

Les travaux de recherche de ce mémoire portent sur l'évaluation des performances de la méthode de la couverture saturée pour la prévention du drainage minier acide face aux conséquences anticipées des changements climatiques au Canada. Deux principaux impacts ont été étudiés dans le cadre de cette maîtrise, soit l'augmentation de la variabilité des régimes de précipitation et l'augmentation de la fréquence des cycles de gel et de dégel. Les conditions des essais encourus sont basées sur les caractéristiques physico-chimiques observées au site de Lower William Lake, en Ontario, qui a été restaurée au moyen de la méthode de la couverture saturée. Afin de valider l'hypothèse selon laquelle les changements climatiques pourraient nuire à la qualité des eaux de drainage sur les sites réhabilités par des recouvrements monocouches avec contrôle du niveau d'eau, deux différentes approches ont été utilisées pour quantifier les performances de la méthode de la couverture saturée. D'abord, l'impact de l'augmentation de la variabilité des régimes de précipitation sur la cinétique d'oxydation de résidus générateurs d'acide recouvert par une monocouche inerte a été étudiée en utilisant une approche géochimique, au moyen d'essais en colonnes de lixiviation. La composition chimique du lixiviat collecté et l'évaluation des caractéristiques physiques, chimiques et minéralogiques des résidus, mesurés avant et après l'essai, ont été utilisé comme indicateurs de performance. Ensuite, l'impact d'une hausse des cycles de gel-dégel sur le flux diffusif d'oxygène qui traverse un matériel de recouvrement inerte a été évalué en utilisant une approche physique, au moyen d'une cellule de diffusion à chambre double adaptée pour les températures de gel. L'efficacité du matériel de recouvrement à limiter la diffusion de l'oxygène a été quantifié en évaluant l'évolution du coefficient de diffusion de l'oxygène et des caractéristiques géotechniques du recouvrement en condition partiellement saturée en fonction du nombre de cycle de gel. / This thesis investigates the performances of saturated covers as a waste management strategy for the prevention of acid mine drainage in the context of climate change in Canada. Two anticipated impacts of climate change were studied, namely the increase in precipitation regime variability and the increase in freeze and thaw cycles frequency. It is believed that climate change could adversely impact water quality on sites rehabilitated with saturated covers. To validate this hypothesis, two different approaches were used. Testing conditions for the experiment described in this thesis were based on the physical and chemical characteristics historically measured at the Lower William Lake site in Ontario. First, the impact of an increased precipitation regime variability on the oxidating kinetic of acid generating tailings rehabilitated using the saturated cover method was investigated from a geochemical point of view, using trickle leach columns. The chemical composition of the leachate and the evaluation of the physical, chemical and mineralogical characteristics of the tailings, measured before and after the column study, were used as performance indicators. Secondly, the impact of an increase in freeze and thaw cycles on the diffusive flux of oxygen passing through an inert material cover was evaluated using a physical approach, using a double chamber diffusion cell adapted for freezing conditions. The efficiency of the cover material to prevent oxygen diffusion was quantified by evaluating the evolution of the oxygen diffusion coefficient and the geotechnical properties of the partially saturated cover material as a function of the number of freeze and thaw cycles applied.

«Thèse [...] pour l'obtention du grade de maître ès lettres (M.L.) »

Ce mémoire présente les démarches qui ont menées à l’obtention d’un modèle statistique pouvant prédire les propriétés d’une surface de fluoropolymère traitée en défilant entre les électrodes d’un système de décharge à barrière diélectrique (DBD) en caractérisant le procédé plasma utilisé. Le réacteur plasma utilisé ainsi que les différents moyens de caractérisation du procédé et de la surface y sont présentés. De plus, plusieurs voies de modélisation utilisant l’algorithme de régression par projection sur les structures latentes (PLS) sont présentées. Afin de modéliser le procédé, une étude de répétabilité en temps de celui-ci a été effectuée. Cette étude avait pour but de montrer que malgré l’apparition d’une couche de dépôt non désirée à la surface de l’électrode découverte du montage DBD, la caractérisation de la surface traitée restait inchangée. Par la suite, la modélisation par PLS est présentée. Avec celle-ci, il est possible d’identifier les facteurs du procédé ayant le plus d’impacts sur la modification de surface. Ces facteurs sont la nature du film de fluoropolymère utilisé comme substrat, la vitesse de défilement de ce film de polymère entre les électrodes de la DBD, le rapport cyclique du signal électrique servant à entretenir la décharge plasma, et le temps de résidence du gaz porteur et du précurseur dans la décharge. Connaissant ces facteurs principaux, des études de cas particuliers sont présentés. Avec ces derniers, il est montré que le modèle devient de moins en moins efficace plus le dépôt est important. Des effets non-linéaires observés sur différentes propriétés de la surface traitée sont aussi observés. / This master thesis contains the steps that lead to a statistical model able to predict the properties of a treated fluoropolymer surface circulating between the electrodes of a dielectric barrier discharge (DBD) system by characterization of the plasma process. The reactor used as well as different characterization apparatus of the plasma process and surface treatment are described. Moreover, different means of modelization using the projection to latent structure (PLS) algorithm are shown. To be able to model the plasma process, a preliminary study of the process repeatability in time has been made. Results of the study show that despite the apparition of an unwanted layer of deposition on the uncovered electrode during the plasma process, the surface treatment physicochemistry does not change. Subsequently, the plasma process modelization by PLS is shown. Using this technique, it is possible to identify and quantify the importance of the input factors in the model. The important factors that are highlighted are the nature of the fluoropolymer film, the line speed of the polymer film between the electrodes, the duty cycle of the electrical signal used to maintain the plasma discharge, and the carrier and precursor gas residence time in the discharge. Knowing these factors, specific case studies were made to assess the proficiency of the model to do predictions. It was observed that the model becomes less precise when the surface shows bigger change. Non-linear effects were also seen of different surface treatment properties.

Yes / Pelvic radiographs remain an essential investigation in orthopaedic practice. Although it is recognised that acquisition techniques can affect image appearances and measurement accuracy, it remains unclear what variation in practice exists and what impact this could have on decision making. Method: This was a cross sectional survey of UK radiology departments utilising an electronic tool. An introductory letter and link was distributed. Responses were received from 69 unique hospital sites within the specified timeframe, a response rate of 37.9%. Results: There was no consistent technique for the positioning of patients for pelvic radiographs. The distance varied between 90 and 115 cm and 10 different centering points were described. In relation to leg position, the feet are usually internally rotated (65 of 69 [94.2%]). Only 1 teaching hospital (1 of 69 [1.4%]) uses a weight-bearing position as standard. Orthopaedic calibration devices were not in routine use, with only 21 using on pelvic x-rays (30.4%). Further, the type of device and application criteria were inconsistent. Conclusions: To our knowledge this is the first study to directly compare radiographic positioning across hospital sites. Our data demonstrated marked variation in technique for pelvis radiographs with associated implications for clinical decision making. Research is required to determine the standard technique and quality outcome measures to provide confidence in diagnostic interpretation particularly for serial radiographs. / College of Radiographers Industry Partnership Scheme (CoRIPS).

Mémoire numérisé par la Direction des bibliothèques de l'Université de Montréal.

Thèse numérisée par la Direction des bibliothèques de l'Université de Montréal.

The aim of this thesis was to synthesise CoAPO-34 and FeAPO-34 using ionothermal synthesis in the presence of organic amines. Using this method provides an alternative route to prepare such materials under low pressure instead of the higher pressure associated with hydrothermal or solvothermal synthesis. Both materials have chabazite (CHA) topology and they are known to act as catalysts. CoAPO-34 was ionothermally prepared using 1-ethyl-3-methylimidazolium bromide (EMIMBr) in presence of 1, 6-hexadiamine (HDA). This study has found that when the synthesis was carried out without HDA, AlPO-11 was preferentially obtained instead of CoAPO-34. Broad line signals which appear between 2000 to 5000 ppm in both spin-echo ³¹P NMR spectra of as-synthesised and calcined CoAPO-34 confirm that the Co²⁺ ions have been successfully incorporated within the framework of the material. FeAPO-34 was synthesised under ionothermal conditions using 1-ethyl-3-methylimidazolium chloride in the presence of ethylenediamine (EDA). In the absence of EDA, the synthesis has produced AlPO-34 instead of FeAPO-34. Broad line signals that appear between 1000 to 14000 ppm in spin-echo ³¹P NMR spectra of both as-synthesised and calcined FeAPO-34 are direct evidence of isomorphous substitution of framework aluminum by Fe(II) or Fe(III). Another aim of this study was to explore the ionothermal synthesis of copper containing aluminophoshate of DNL-1 (Cu/DNL-1). This material was attractive to explore because it contains 20 ring extra-large pores and Cu(I) species in the channels of the framework, potentially giving material the ability to simultaneous store NO and to generate NO from NO₂⁻ anions. Cu/DNL-1 was successfully prepared under ionothermal conditions using EMIMBr and HDA. Without HDA in the synthesis, AlPO-11 was obtained. In this material, copper ions were not incorporated in the Cu/DNL-1 skeleton framework. This was confirmed by absence of broadline signal at >500 ppm in spin-echo ³¹P NMR spectrum of the sample. The copper ions are expected to be present as extra-framework cations. Extra-framework Cu(I) species that were formed by high temperature calcination of Cu/DNL-1 are active to produce NO from NO₂⁻. Therefore, the calcined Cu/DNL-1 can be used to simultaneously store and produce NO from nitrite. This has the potential to significantly extend the lifetime of gas delivery in the material to prevent thrombus formation.

Jenny Lind was an opera singer in the years 1838–49. During this time she was given the status f an icon mainly due to her image. She was almost sanctified by the press. Her “private personality” was assigned a saintly purity, and she became a stereotype symbol of femininity. This dissertation investigates what factors interacted that made this possible, and highlight the importance of Lind’s voice for her image. Jenny Lind’s voice was a high soprano, but not very powerful. By positioning herself in a singing tradition that corresponded to her voice’s advantages, she managed to develop an equilibrium, which she used well. Lind’s voice was often perceived as unusual; she had a particular voice timbre. She also had a vocal defect. Her tones from f’–a’ are described as “husky”, and sometimes hoarse. This means that her voice let through more air than her vocal cords could use. My argument is that it was the voice damage that created unique timbre that the contemporary critics perceived as particularly “feminine”. Lind’s weak and damaged voice corresponds to the nineteenth century’s female ideal: fragile and weak. Moreover, Lind needed to adept her roles to her damage voice and the consequence was that also her interpretations were perceived “feminine”. In other words, Lind exerted a gender performative voice processing. All of Jenny Lind’s roles became representatives of femininity, regardless of whether it was the role’s purpose or not. Lind adapted all her interpretations to her weak voce, it's strength being high notes, pianissimo dynamics and equilibrism, and gave all her roles a genderstereotyped voice.