6 resultados para in-depth analysis
em Brock University, Canada
Resumo:
The current study investigated the effects that barriers (both real and perceived) had on participation and completion of speech and language programs for preschool children with communication delays. I compared 36 families of preschool children with an identified communication delay that have completed services (completers) to 13 families that have not completed services (non-completers) prescribed by Speech and Language professionals. Data findings reported were drawn from an interview with the mother, a speech and language assessment of the child, and an extensive package of measures completed by the mother. Children ranged in age from 32 to 71 mos. These data were collected as part of a project funded by the Canadian Language and Literacy Research Networks of Centres of Excellence. Findings suggest that completers and non-completers shared commonalities in a number of parenting characteristics but differed significantly in two areas. Mothers in the noncompleting group were more permissive and had lower maternal education than mothers in the completing families. From a systemic standpoint, families also differed in the number of perceived barriers to treatment experienced during their time with Speech Services Niagara. Mothers in the non-completing group experienced more perceived barriers to treatment than completing mothers. Specifically, these mothers perceived more stressors and obstacles that competed with treatment, perceived more treatment demands and they perceived the relevance of treatment as less important than the completing group. Despite this, the findings suggest that non-completing families were 100% satisfied with services. Contrary to predictions, there were no significant differences in child characterisfics and economic characteristics between completers and non-completers. The findings in this study are considered exploratory and tentative due to the small sample size.
Resumo:
This research used a quantitative study approach to investigate the “boy crisis” in Canada. Boy crisis advocates suggest that boys are being surpassed by girls on reading assessments and promote strategies to assist male students. A feminist framework was used in this study that allowed for an investigation and discussion of the factors that mediate between gender and success at reading comprehension, interpretation, and response to text without ignoring female students. Reading scores and questionnaire data compiled by the Pan-Canadian Assessment Program were used in this research, specifically the PCAP-13 2007 assessment of approximately 30,000 13-year-old students from all Canadian provinces and Yukon Territory (CMEC, 2008). Approximately 20,000 participants wrote the reading assessment, while 30,000 students completed the questionnaire responses. Predictor variables were tested using parametric tests such as independent samples t-test, one-way ANOVA, chi-square analysis, and Pearson r. Findings from this study indicate that although boys scored lower than girls on the PCAP-13 2007 reading assessment, factors were found to influence the reading scores of both male and female students to varying degrees. Socioeconomic status, perceptions of the reading material used in language arts classrooms, reading preference, reading interest, parental involvement, parental encouragement for reading, and self-efficacy were all found to affect the reading performance of boys and girls. Relationships between variables were also found and are discussed in this research. The analysis presented in this study allows parents, educators, and policy makers to begin to critically examine and re-evaluate boy crisis literature and offers suggestions on how to improve reading performance for all students of all socioeconomic backgrounds.
Resumo:
Monoterpenoid indole alkaloids (MIA) are among the largest and most complex group of nitrogen containing secondary metabolites that are characteristic of the Apocynaceae plant family including the most notable Catharanthus roseus. These compounds have demonstrated activity as successful drugs for treating various cancers, neurological disorders and cardiovascular conditions. Due to the low yields of these compounds and high pharmacological value, their biosynthesis is a major topic of study. Previous work highlighting the leaf epidermis and leaf surface as a highly active area in MIA biosynthesis and MIA accumulation has made the epidermis a major focus of this thesis. This thesis provides an in-depth analysis of the valuable technique of RNA in situ hybridization (ISH) and demonstrates the application of the technique to analyze the location of the biosynthetic steps involved in the production of MIAs. The work presented in this thesis demonstrates that most of the MIAs of Eurasian Vinca minor, African Tabernaemontana e/egans and five Amsonia species, including North American Amsonia hubrichitii and Mediterranean A. orienta/is, accumulate in leaf wax exudates, while the rest of the leaf is almost devoid of alkaloids. Biochemical studies on Vinca minor displayed high tryptophan decarboxylase (TOe) enzyme activity and protein expression in the leaf epidermis compared to whole leaves. ISH studies aimed at localizing TOe and strictosidine synthase suggest the upper and lower epidermis of V. minor and T. e/egans as probable significant production sites for MIAs that will accumulate on the leaf surface, however the results don't eliminate the possibility of the involvement of other cell types. The monoterpenoid precursor to all MIAs, secologanin, is produced through the MEP pathway occurring in two cell types, the IPAP cells (Gl0H) and epidermal cells (LAMT and SLS). The work presented in this thesis, localizes a novel enzymatic step, UDPG-7-deoxyloganetic acid glucosyltransferase (UGT8) to the IPAP cells of Catharanthus longifolius. These results enable the suggestion that all steps from Gl0H up to and including UGT8 occur in the IPAP cells of the leaf, making the IPAP cells the main site for the majority of secologanin biosynthesis. It also makes the IPAP cells a likely cell type to begin searching for the gene of the uncharacterized steps between Gl0H and UGT8. It also narrows the compound to be transported from the IPAP cells to either 7-deoxyloganic acid or loganic acid, which aids in the identification of the transportation mechanism.
Resumo:
This qualitative case study explored elementary school teachers' lived experiences and perceptions surrounding the implementation of an antibullying program within the public school system. The purpose of this study was to share the individual stories of teachers who have implemented an antibullying initiative and how their journey into the bullying phenomenon changed their personal beliefs, their students, and their school climate. Five elementary school teachers (3 female, 2 male) from 5 different public schools in a southwestern region of Ontario completed 8 closed-ended questions and participated in l-on-l semistructured interviews. All 5 teachers had implemented the "Imagine ... A School Without Bullying" initiative or were involved with its predecessor the "Good Kid Sid" pilot project. The interviews were audiotaped and transcribed. The data were coded, and broad themes were reduced to a smaller number of topics where a more in-depth analysis occurred. Findings showed that reports of bullying existed at each of the schools. All 5 teachers felt their initiative was making a positive difference in their school; however this did not come without some resistance from staff. A common finding heard from all of their stories was the need for more time. Implications for antibullying initiatives are discussed, and advice to anyone beginning an antibullying initiative is offered by each of the 5 teachers involved in this study.
Resumo:
This is a qualitative study exploring the physical activity patterns of a group of women with physical disabilities through their lifespan. In-depth interviews were done with a group of 6 women aged 1 9 to 3 1 . The data were analyzed via content and demographic strategies. Participants in this study reported that their physical activity patterns and their experiences related to their physical activity participation changed over their lives. They were most physically active in their youth (under 14 years of age) and as they reached high school age (over 14 years of age) and to the present time, they have become less physically active. They also reported both affordances and constraints to their physical activity participation through their lifespan. In their youth, they reported affordances such as their parents' assistance, an abundance of available physical activity opportunities, and independent unassisted mobility, as all playing an important factor in their increased youth physical activity. In adulthood, the participants' reported less time, fewer opportunities for physical activity, and reliance on power mobility as significant constraints to their physical activity. The participants reported fewer constraints to being physically active in their youth when compared to adulthood. Their reasons for participation in physical activity changed from fun and socialization in their youth instead of for maintenance of health, weight, and function in adulthood. These affordances, constraints and reasons for physical activity participation were supported in the literature.
Resumo:
In the last few decades, there have been significant changes in the way people with intellectual disabilities (ID) live in many countries around the world. Large isolated institutions have been replaced by community-based housing. This study examined the deinstitutionalization process in Ontario and it's effects on the lives of three individuals with ID. A case analysis approach was used allowing for in depth evaluation of the quality of life of these participants following their discharge with a focus on family involvement, community engagement, and choice making. A discrepancy analysis between the Essential Elements Plan (EEP), constructed when they were entering the community placement, and the current living arrangements was also done. The results of this study suggested that with community living comes improvements in family interactions, community engagement, and decision-making. However, these improvements were found to be minimal. Also, little discrepancy was found between the EEPs and their actual placements.