Que la culture soit identifiée comme étant un tout représentant l'humain, son oeuvre et sa manière d'habiter le monde ou encore qu'elle soit une référence au développement des facultés de l'esprit, elle se présente sous diverses définitions que nous parvenons difficilement à accoler aux métiers de la formation professionnelle. L'exercice semble tout aussi hasardeux lorsque nous essayons de la faire émerger de la pratique éducative d'un enseignant, tel celui de la coiffure, de qui il est attendu d'être un « passeur de culture » (M.E.Q., 2001). Dans ce mémoire, une quête d'identification d'éléments culturels portés par les enseignants et les artisans du métier de la coiffure, nous explicitons la typologie des métiers proposée par (Gagnon, 2010a), qui notamment distingue les orientations traditionnelle et technoscientifique susceptibles de se retrouver dans un métier donné, et nous proposons des indicateurs de ces éléments. Nous expliquons ensuite cette typologie au domaine de la coiffure conduisant à l'illustration des quatre cultures-types sous-tendues par la typologie. Il devient alors possible de mieux comprendre cette culture implicite de la coiffure, qui vit dans l'ombre, sans porter de mots, sans être objet de formation explicite.

This research examined the validity of the 2-factor (e.g., Button, Mathieu, and Zajac, 1996) and 3-factor (e.g., VandeWalle, 1997) models of goal orientation. These models differ in specifying the dimensionality, measurement, and nomological network for learning goal orientation and performance goal orientation constructs. This study specifically tested the factorial and nomological validity of each model of goal orientation. The factorial validity was examined through a series of nested models and evaluating model fit parameters. The nomological validity of goal orientation was examined testing theoretically-derived relationships with the self-concept traits (e.g., core self-evaluations) of self-esteem, internal locus of control, generalized self-efficacy, and emotional stability. In addition, goal orientation relationships with need for achievement, fear of negative evaluation, and social desirability were also examined. Results of this study yielded mixed findings for the a priori models. Data from a student sample (N=314) and an employee sample (N=114) resulted in mixed findings across models and across samples. Although there was general support for both factor structures, several psychometric weaknesses were noted in the scales including low factor loadings, low factor variances, and low inter-item correlations. Additionally, results of the test-retest stability of goal orientation constructs were lower than desired across both models. Results of the hypothesized relationships found consistent support for learning goal orientation relationships, while the results for performance goal orientation were mixed. Learning goal orientation reflected positive and moderate levels of associations (i.e., r >.20) with self-esteem, internal locus of control, generalized self-efficacy, emotional stability, need for achievement and negatively related to fear of negative evaluation. Learning goal orientation also reflected positive but smaller levels of association with social desirability. Hypothesized relationships were supported for VandeWalle's (1997) performance avoid goal orientation reflecting negative relationships with the same correlates, except for a positive association with fear of negative evaluation. In general, the hypothesized relationships for Button et al.'s (1996) performance goal orientation and VandeWalle's (1997) performance prove goal orientation were not supported. These relationships resulted in near zero-correlations. Implications for future research addressing the conceptual framework, measurement and nomological relationships for goal orientation are discussed. / Ph. D.

The primary purpose of this study was to assess the relevance of two forms of orientation courses for adult students (aged 25 and older) and to determine a means of predicting the relevance for future adult students. The two forms of orientation were information-giving/ skill-building courses which emphasized school related information and student related skills and personal growth courses which emphasized self-confidence and self-determination building and emotional/ psychological adjustment to the role of student. The experimental group included adults in five orientation courses. Three were information-giving/skill-building (Self-Instructional Orientation, College Survival, and Information and Planning Workshop for Interior Design Students) and two were personal growth (Women Returning to School and Second Career Adults). Students were able to select whichever orientation option they preferred. The control group included adults in four orientation courses taught at another campus of the same community college. Students in the control group did not have a choice of orientation content or structure. All students completed a questionnaire on the relevance of their orientation at the end of the course. Students in the experimental group also completed the Edwards Personal Preference Schedule (SPPS). A comparison of the mean relevance scores of the experimental and control groups indicated that those students who had an option in their orientation course found the course more relevant than those who had no option. A comparison of the retention rates (subsequent enrollment in the community college) for the high and low relevance reporters in the experimental group and within each of the two groups of the experimental group (information-giving/skill-building and personal growth) indicated that high relevance reporters did not have a higher retention rate than low relevance reporters within the subgroups or for the group as a whole. In a comparison between the subgroups, however, the personal growth subgroup had both a higher mean relevance score and a higher retention rate than the information-giving/skill-building subgroup. Using relevance as the dependent variable, regression equations for each of the subgroups were developed on the basis of selected ZPPS variables. Adult students who are high on deference and achievement and low on autonomy and succorance are more likely to find an information-giving/skill-building course relevant. Adult students who are high on deference and low on change, nurturance, order, and autonomy are more likely to find a personal growth course relevant. On the basis of the study, it was concluded that adults will be more apt to find their orientation course relevant if they have several options from which to choose, that personal growth elements should receive more emphasis in orientation courses for adult students, that the relevance of an orientation course will not affect the student's likelihood of re-enrolling, and that orientation relevance can be predicted given the appropriate EPPS scores. / Ed. D.

Cellulose nanomaterials (CNMs) have been widely studied for their potential as sustainable fillers in polymer nanocomposites, optical responsiveness in suspensions and thin films, and their orientation-dependent liquid crystalline behavior in suspensions. Cellulose nanocrystals (CNCs) have seen a particular prominence due to their versatility across a breadth of applications. The unique structure of CNCs, represented as nanoscale rods with a slight twist, provides for their self-assembly into liquid crystalline phases when their concentration is increased and can be used to generate iridescent materials with tunable wavelengths. Further, CNCs are often used as fillers in nanocomposites, due to their high single crystal Young's modulus, achieving vast enhancements in stiffness when incorporated above a critical concentration where a percolating network is formed. The breadth of applications for CNCs strongly depend not only on their crystalline structure, but crucially on the interactions between particles. These interactions are well-known, yet a complete understanding to enable the full exploitation of the properties attainable in CNC-based materials is lacking. The principal emphasis of this dissertation lies in further improving our comprehension of the interactions between CNCs across a variety of applications such that their full potential can be achieved. A review of the current research of CNC-based materials is provided to guide the discussion herein. Interparticle interactions are studied in aqueous suspensions of CNCs in evaporating sessile droplets. This system provides a complex interrelationship between mass, heat, and momentum transport which collectively provide a change in the local CNC concentration as a function of time. CNC interactions can be controlled throughout the evaporation process as a result of these local concentration variations. We implement a novel approach using time-resolved polarized light microscopy to characterize the evolution of these particle interactions via the orientation of CNCs as a function of CNC concentration and droplet volume. Ultimately, boundary interactions at the leading edge of the contact line during evaporation was found to drive a cascade of local CNC interactions resulting in alignment post-deposition. Computational analysis evaluated the influence of evaporation-induced shear flow during evaporation. Orientation was found to be independent of the bulk fluid flow, corroborating the importance of interparticle interactions on the ensuing alignment of CNCs. Characterization of an evaporating droplet of initially liquid crystalline suspension of CNCs verified the simulations which predicted that orientation was not coupled with entrainment. Finally, the multiple modes of orientation showed that local control over CNC properties can be realized through governance of the interactions between CNCs. The interactions of CNCs in polymer nanocomposites were also studied for the development of smart materials which can adapt their properties in response to external stimuli. A well-known example of this phenomena is found when CNCs are introduced as fillers in thermoplastic polyurethanes (TPUs) above a critical concentration required to achieve percolation. The interactions between CNCs in the percolating network provide a strong enhancement to the modulus of these materials. However, these materials soften upon exposure to water following the disruption of inter-CNC hydrogen bonding by the diffusing water molecules, as prevailing theories suggest. CNCs simultaneously enhance water transport into hydrophobic matrices. Thus, a complete understanding of the interrelationship between the mass transport and mechanical performance can facilitate the development of humidity sensing or shape memory materials which operate as a result of the interactions between CNCs inside of a polymer matrix. Despite an increase in the equilibrium water uptake with increasing CNC concentration, a decrease in the apparent diffusivity of water within the nanocomposites was observed as a result of swelling of the bulk polymer. Additionally, we developed a modification to the commonly used percolation model to predict the time-dependent evolution of storage modulus during water-induced softening. We found that the solvent mass transport can be directly coupled to the mechanical integrity of the percolating network of CNCs by evaluating the hydrogen bonding state of the network as a function of time. Finally, a novel nanocomposite filler comprised of CNCs and 2,2,6,6- tetramethylpiperidine 1-oxyl (TEMPO) oxidized cellulose nanofibrils (TOCNFs) was prepared through solution casting to improve the mechanical performance of the individual reinforcements alone. The physical interaction length is increased by incorporating CNMs of different length scales resulting in increased tensile strength and elongation. Further, the morphology, evaluated with polarized light microscopy, atomic force microscopy, and simulated with dissipative particle dynamics, revealed the combined fillers exhibit a cooperative enhancement between CNMs. Characterization of the crystallinity through x-ray diffraction confirmed the interactions occur primarily between the crystalline domains of each material. Accordingly, the combination of CNMs resulted in nanocomposite fillers which can be implemented such that the weak interfaces with polymer matrices can be bridged with fillers providing reinforcement over a broader length scale. / Doctor of Philosophy / Cellulose nanocrystals (CNCs) are sustainable and biorenewable nanoparticles derived from cellulose. These materials have been widely studied and are commonly used among a plethora of applications such as in reinforcing fillers in polymer nanocomposites, optically responsive materials that can be used in packaging or anti-counterfeiting technologies, as well as in suspension modifiers for skin care products. These techniques tune the interactions between individual CNCs to modify the behavior of the bulk material. The specific interactions are well-known, yet a complete understanding of the influence of these interactions resulting in the utility of CNC-based materials in various applications is lacking. The principal emphasis of this dissertation lies in further improving our comprehension of the interactions between CNCs across a variety of applications such that their full potential can be achieved. Interactions between CNCs were investigated in three systems comprising of a range of typical use cases for CNC-based materials. The behavior of CNCs was examined in evaporating droplets of aqueous suspensions. These materials exhibited a change in orientation in the final deposit which is dependent on variations in local CNC concentration during drying. These concentration changes describe the relative strength of interactions between CNCs which ultimately influences the final alignment of these materials. Further, these interactions provide a pathway to deposit a controlled orientation of CNCs on a substrate which can be utilized for optically responsive materials or serve as templates for other orientation-dependent materials. CNCs were also incorporated into a thermoplastic polyurethane (TPU) matrix to provide increased stiffness. In these composites, water preferentially interacts with CNCs preventing the nanoparticles from interacting with one another. As water is absorbed, these materials soften as a result of the reduced interactions between CNCs. We investigated the influence of dynamically changing CNC interactions on the mechanical performance of these materials during water absorption and developed an analytical model to describe the observed softening behavior. Finally, CNCs were combined with 2,2,6,6- tetramethylpiperidine 1-oxyl oxidized cellulose nanofibers (TOCNFs) and cast into thin films. The mechanical properties of these differently sized, yet chemically similar, nanoparticles were compared as a function of CNC composition. A cooperative enhancement of the ultimate tensile strength and elongation was observed at low CNC loadings where CNCs and TOCNFs were found to self-organize during casting in a mutually beneficial manner.

Research has established a link between LGBTQ+ identity and high victimization rates. However, transgender experiences specifically are not well understood because they are often subsumed under the monolithic label of LGBTQ+ experiences, despite the specific risks associated with non-normative gender identities. It has also been established that the police function is grounded in the maintenance of the dominant social order. Given that LGBTQ+ individuals, and transgender individuals in particular, are disruptive of the social order, many of their interactions with police have been negative. In this study, I examine how varying degrees of "visible" gender nonconformity affect a transgender individual's comfort level with asking for police help. I hypothesize that transgender people who visibly transgress gender norms by physically presenting as a gender that does not match their government-issued identification will be less comfortable asking the police for help than transgender individuals who do not have such incongruence. Through a logistic regression analysis of the 2015 United States Transgender Survey, I find that those groups who visibly transgress gender norms have a higher likelihood of experiencing discomfort with asking for police help. These findings have important implications for our understanding of transgender victimization by elucidating the barriers to police officers' ability to prevent or lessen the effects of victimization within the transgender community. / Master of Science / Research has established a link between LGBTQ+ identity and high victimization rates. However, transgender experiences specifically are not well understood because they are often grouped in under the monolithic label of LGBTQ+ experiences, despite the specific risks associated with non-normative gender identities. It has also been established that the police function is grounded in the maintenance of the status quo. Given that LGBTQ+ individuals, and transgender individuals in particular, disrupt the status quo, many of their interactions with police have been negative. In this study, I examine how varying degrees of "visible" gender nonconformity affect a transgender individual's comfort level with asking for police help. I hypothesize that transgender people who visibly transgress gender norms by physically presenting as a gender that does not match their driver's license or state identification card will be less comfortable asking the police for help than transgender individuals who do not have such incongruence. Through a logistic regression analysis of the 2015 United States Transgender Survey, I find that those groups who visibly transgress gender norms have a higher likelihood of experiencing discomfort with asking for police help. These findings have important implications for our understanding of transgender victimization by elucidating the barriers to police officers' ability to prevent or lessen the effects of victimization within the transgender community.

The purpose of the present study was to expand researchers' understanding of work motivation by taking a pattern approach to the examination of the dimensions of goal orientation. To explore the differential behavior of people who possess different goal orientation patterns, the present study sought to verify the existence of optimal and least optimal patterns using two important motivational outcome variables: self-efficacy and exerted effort. In addition, the role of the performance-approach goal orientation (PGO) dimension within the context of goal orientation patterns was examined. Data was collected from a sample of college students who were asked to perform a puzzle solving task and complete scales assessing their effort exerted and self-efficacy related to this task. Three hundred and seventy one participants were classified into 8 patterns. The results confirmed the existence of an optimal and a least optimal pattern of goal orientation for self efficacy and partially confirmed the existence of such patterns for exerted effort. The findings also suggested that PGO is better understood when it is examined in the context of goal orientation patterns. Specifically, PGO exhibited adaptive behaviors when paired with a strong learning goal orientation (LGO) and weak performance-avoid goal orientation (AGO), and maladaptive behaviors when paired with a strong AGO and low LGO. Taken as a whole, the results indicated that the use of goal orientation patterns produces findings that have not been previously demonstrated by traditional variable-oriented approaches. Implications of these findings and suggestions for future research are discussed. / Ph. D.

The flow experience refers to a state characterized by complete involvement in a task. According to flow theory, the flow state is preceded by three antecedents, skill-task match, goals, and feedback. These antecedents lead to a flow state, which is exemplified by six components, merging of action and awareness, centering of attention, loss of self-consciousness, temporal distortion, sense of control, and autotelic nature. In a flow state, individuals persist on a task without regard or awareness of themselves or their surroundings. Currently, flow is a two-stage model in which the three antecedents lead to a flow state. Flow theory is severely limited as no mediating processes have been specified between flow antecedents and the flow state. The missing mediating processes in flow theory do not allow for empirically examining testable a priori predictions. Further, failure to specify a mediator brings into question the current flow antecedents and components. The aim of this study was to recast flow theory within a self-regulation framework to ameliorate these issues. I borrow from the self-regulation literature and propose that “feeling right” mediates the relationship between flow antecedents and components. Feeling right is a positive cognitive experience that arises from successful regulatory fit. I further posit that the antecedents of flow are the antecedents of feeling right, motivational orientation and goal pursuit strategies. Finally, I propose that the flow state only be characterized by four components, merging of action and awareness, centering of attention, loss of self-consciousness, and temporal distortion. Thus, in my revised model of flow, alignment between motivational orientation and goal pursuit will lead to feeling right, which will then lead to a flow state, characterized by the four aforementioned components. A secondary goal of this study was to examine the relationship between flow and task performance. I hypothesized that individuals in a state of regulatory fit would experience flow, operationalized by intense concentration, time distortion, and loss of self-consciousness. I further hypothesized that flow would mediate the relationship between regulatory fit and performance and that type of fit would influence performance quality or quantity. I utilized an experiment design to test this revised flow model in the context of a computer game. A path model was conducted to test these predictions. Results revealed that individuals in a state of regulatory fit exhibited greater time distortion and loss of self-consciousness. However, flow did not mediate the relationship between fit and performance. Based on these results, flow can successfully be applied to a self-regulatory framework. There is initial evidence that motivational orientation and goal pursuit, i.e., regulatory fit, are causal antecedents to a flow state. There was stronger evidence for the relationship between regulatory fit and flow when behavioral flow indicators were used. Future research should focus on identifying behavioral flow indicators and continue to explore the flow construct within a self-regulatory framework. / Ph. D.

Great interest exists in adding long fibers into polymeric fluids due to the increase in properties associated with the composite, as compared to the neat resin. These properties, however, are dependent on the fiber orientations generated during processing, such as injection molding. In an effort to optimize industrial processing, optimize mold design, and maximize desired properties of the final part, it is highly desirable to predict long fiber orientation as a function of processing conditions. The purpose of this research is to use rheology as a fundamental means of understanding the transient orientation behavior of concentrated long glass (> 1mm) fiber suspensions. Specifically, this research explores the method of using rheology as a means of obtaining stress tensor and orientation model parameters needed to accurately predict the transient fiber orientation of long glass fiber reinforced polypropylene, in a well-defined simple shear flow, with the hopes of extending the knowledge gained from these fundamental experiments for the use of simulating processing flows, such as injection molding. Two fiber orientation models were investigated to predict the transient orientation of the long glass fiber systems explored. One model, the Folgar-Tucker model, has been particularly useful for predicting fiber orientation in short glass fiber systems and was used in this paper to assess its performance with long glass fibers. A second orientation model, one that accounts for the semi-flexibility of fibers, was extended to describe non-dilute suspension and coupled with an augmented stress tensor that accounts for fiber bending. Stress tensor and orientation model parameters were determined (in all cases) by best fitting these coupled equations to measured stress data obtained using a sliding plate rheometer. Results showed the semi-flexible orientation model and stress tensor combination, overall, provided improved rheological results as compared to the Folgar-Tucker model when coupled with the stress tensor of Lipscomb (1988). Furthermore, it was found that both stress tensors required empirical modification to accurately fit the measured data. Both orientation models provided encouraging results when predicting the transient fiber orientation in a sliding plate rheometer, for all initial fiber orientations explored. Additionally, both orientation models provided encouraging results when the model parameters, determined from the rheological study, were used for the purpose of predicting fiber orientation in an injection molded center-gated disk. / Ph. D.

Québec Université Laval, Bibliothèque 2016

Regulatory fit (Higgins 2000) has, thus far, only been tested using regulatory focus theory (Cesario, Higgins, & Scholer, 2008); this study contributes to the current literature by testing the generality of the fit principle using goal orientation. I will test the effect of fit on corrective feedback utilization. I predict that experiencing regulatory fit between goal orientation and goal pursuit strategies will lead to: 1) higher behavioral utilization of feedback, and 2) feedback recall. Self-monitoring will be included as an exploratory variable to assess whether level of self-monitoring will affect the aforementioned outcomes. Results indicated that individuals experiencing regulatory fit between goal orientation and feedback framing exhibited greater variety and frequency of feedback recommended behaviors overall. No fit effects were found for feedback recall. Self-monitoring was not impacted by goal orientation or feedback framing. / Master of Science