391 research outputs found

    The role of gender in students’ ratings of teaching quality in computer science and environmental engineering

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    Students’ ratings of teaching quality on course units in computer science and environmental engineering at a large Swedish university were obtained using the Course Experience Questionnaire; 8,888 sets of ratings were obtained from men and 4,280 sets were obtained from women over ten academic years. There were differences in the ratings given by students taking the two programs; in particular, teachers tended to receive higher ratings in subjects that were less typical for their gender than in subjects that were more typical for their gender. There were differences in the ratings given to male and female teachers, differences in the ratings given by male and female students, and interactions between these two effects. There was no systematic trend for students to give different ratings to teachers of the same gender as themselves compared with teachers of the other gender. Nevertheless, without exception even the statistically significant effects were small in magnitude and unlikely to be of theoretical or practical importance. It is concluded that the causes of differences in the career progression of male and female teachers in engineering education need to be sought elsewhere.   

    Homi Bhabha and Canadian Curriculum Studies: Beyond the Comforts of the Dialectic

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    In this article we consider the potential for the work of the postcolonial theorist, Homi Bhabha, to engage us in important reflections on Canadian curriculum studies. Drawing on Bhabha’s writings and interviews, we offer possibilities for ways in which his concepts of cultural difference, hybridity, and the third space, could influence English language art education, social studies education and teacher education

    Safety of intravenous iodinated contrast medium injection in rabbits undergoing conscious computed tomography

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    BACKGROUND: Contrast media in CT is widely used in dogs and cats to provide superior tissue delineation and increase the diagnostic capabilities. These contrast‐enhanced imaging techniques are gaining popularity in rabbits; published studies reporting the safety of doing so are lacking. METHODS: This retrospective observational study aimed to determine the incidence of adverse events following the intravenous administration of iodinated non‐ionic contrast medium in 350 rabbits. The medical records of this subset of rabbits admitted between January 2009 and November 2018, that underwent CT examination and received intravenous contrast media, were evaluated. RESULTS: From the 350 rabbits, 342 rabbits were still alive 7 days after the scan. A total of eight rabbits died within 7 days of the scan, seven of which within the first 24 h. All deaths were presumed to be sequelae to the diseases they were being investigated for and not thought to be related to the administration of intravenous contrast medium. CONCLUSIONS: The results indicated that the use of intravenous non‐iodinated contrast medium was well tolerated and safe in rabbits undergoing conscious CT examination

    Awareness, Discovery, Becoming, and Debriefing: Promoting Cross-Cultural Pedagogical Understanding in an Undergraduate Education Program

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    This article discusses the first phase of an action research project aimed at identifying a collaborative and collective response to the need to prepare student teachers to work in diverse school contexts. The research brought together university researchers, community and cultural institutions, professional associations, school boards, and government and civil organizations to design a Diversity Institute for integration into the teacher preparation program at the University of Alberta. Student teachers’ responses to the Diversity Institute suggest that although a few participants were able to develop new understandings of themselves and others and to effect changes in their pedagogical practices, many remained at a shallow level of awareness about the complexities of diversity and difference. Reflections on the first phase of the Institute point to the underlying dynamics of learning and unlearning that are at work in becoming a teacher and the need for time and space for a deeper engagement with diversity in the teacher education program.Cet article prĂ©sente la premiĂšre phase d’un projet de recherche action visant l’identification d’une rĂ©ponse collaborative et collective au besoin de prĂ©parer les Ă©tudiants en pĂ©dagogie Ă  travailler dans divers contextes scolaires. La recherche a impliquĂ© la collaboration de chercheurs universitaires, d’instituts communautaires et culturels, d’associations professionnelles, de conseils scolaires et d’organisations gouvernementales et civiles, dans la conception d’une sĂ©rie d’ateliers et de prĂ©sentations (nommĂ©e Diversity Institute 2008) qui a ensuite Ă©tĂ© intĂ©grĂ©e au programme de pĂ©dagogie Ă  l’UniversitĂ© de l’Alberta. La rĂ©action des Ă©tudiants en pĂ©dagogie qui ont participĂ© aux ateliers et aux prĂ©sentations indique que, mĂȘme si quelques participants ont pu dĂ©velopper de nouvelles connaissances sur eux-mĂȘmes et les autres, et qu’ils ont rĂ©ussi Ă  modifier leurs pratiques pĂ©dagogiques, plusieurs n’ont acquis qu’une connaissance superficielle des complexitĂ©s de la diversitĂ© et la diffĂ©rence. Les rĂ©flexions sur la premiĂšre phase de Diversity Institute ont fait ressortir, d’une part, les rapports dynamiques et sous-jacents d’apprentissage et de dĂ©sapprentissage qui accompagnent la formation des Ă©tudiants en pĂ©dagogie et, d’autre part, le besoin de temps et d’espace au sein du programme de pĂ©dagogie pour permettre une apprĂ©ciation approfondie de la diversitĂ©

    Oligonucleotide ligation assay detects HIV drug resistance associated with virologic failure among antiretroviral-naive adults in Kenya

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    Background: Transmitted drug resistance (TDR) is increasing in some areas of Africa. Detection of TDR may predict virologic failure of first-line non-nucleoside reverse-transcriptase inhibitor (NNRTI)-based antiretroviral therapy (ART). We evaluated the utility of a relatively inexpensive oligonucleotide ligation assay (OLA) to detect clinically relevant TDR at time of ART initiation. Methods: Pre-ART plasmas from ART-naive Kenyans initiating an NNRTI-based fixed-dose combination ART in a randomized adherence trial conducted in 2006 were retrospectively analyzed by OLA for mutations conferring resistance to NNRTI (K103N, Y181C, and G190A) and lamivudine (M184V). Post-ART plasmas were analyzed for virologic failure (≄1,000 copies/mL) at 6 month intervals over 18-month follow-up. Pre-ART plasmas of those with virologic failure were evaluated for drug resistance by consensus and 454-pyrosequencing. Results: Among 386 participants, TDR was detected by OLA in 3.89% [95% Confidence Interval (CI), 2.19-6.33], and was associated with a 10-fold higher rate of virologic failure [Hazard Ratio (HR), 10.39; 95% CI, 3.23-32.41; p Conclusions: Detection of TDR by a point mutation assay may prevent use of sub-optimal ART

    Genome-wide contribution of genotype by environment interaction to variation of diabetes-related traits

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    While genome-wide association studies (GWAS) and candidate gene approaches have identified many genetic variants that contribute to disease risk as main effects, the impact of genotype by environment (GxE) interactions remains rather under-surveyed. To explore the importance of GxE interactions for diabetes-related traits, a tool for Genome-wide Complex Trait Analysis (GCTA) was used to examine GxE variance contribution of 15 macronutrients and lifestyle to the total phenotypic variance of diabetes-related traits at the genome-wide level in a European American population. GCTA identified two key environmental factors making significant contributions to the GxE variance for diabetes-related traits: carbohydrate for fasting insulin (25.1% of total variance, P-nominal = 0.032) and homeostasis model assessment of insulin resistance (HOMA-IR) (24.2% of total variance, P-nominal = 0.035), n-6 polyunsaturated fatty acid (PUFA) for HOMA-ÎČ-cell-function (39.0% of total variance, P-nominal = 0.005). To demonstrate and support the results from GCTA, a GxE GWAS was conducted with each of the significant dietary factors and a control E factor (dietary protein), which contributed a non-significant GxE variance. We observed that GxE GWAS for the environmental factor contributing a significant GxE variance yielded more significant SNPs than the control factor. For each trait, we selected all significant SNPs produced from GxE GWAS, and conducted anew the GCTA to estimate the variance they contributed. We noted the variance contributed by these SNPs is higher than that of the control. In conclusion, we utilized a novel method that demonstrates the importance of genome-wide GxE interactions in explaining the variance of diabetes-related traits
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