McGill University

About: McGill University is a education organization based out in Montreal, Quebec, Canada. It is known for research contribution in the topics: Population & Poison control. The organization has 72688 authors who have published 162565 publications receiving 6966523 citations. The organization is also known as: Royal institution of advanced learning & University of McGill College.

Differential effects of prompts and recasts in form-focused instruction

Abstract: Four teachers and their eight classes of 179 fifth-grade (10–11-year-old) students participated in this quasi-experimental classroom study, which investigated the effects of form-focused instruction (FFI) and corrective feedback on immersion students' ability to accurately assign grammatical gender in French. The FFI treatment, designed to draw attention to selected noun endings that reliably predict grammatical gender and to provide opportunities for practice in associating these endings with gender attribution, was implemented in the context of regular subject-matter instruction by three of the four teachers, each with two classes, for approximately 9 hours during a 5-week period, while the fourth teacher taught the same subject matter without FFI to two comparison classes. Additionally, each of the three FFI teachers implemented a different feedback treatment: recasts, prompts, or no feedback. Analyses of pretest, immediate-posttest, and delayed-posttest results showed a significant increase in the ability of students exposed to FFI to correctly assign grammatical gender. Results of the written tasks in particular, and to a lesser degree the oral tasks, revealed that FFI is more effective when combined with prompts than with recasts or no feedback, as a means of enabling L2 learners to acquire rule-based representations of grammatical gender and to proceduralize their knowledge of these emerging forms.This study was funded by the Social Sciences and Humanities Research Council of Canada (nos. 410-98-0175 and 410-2002-0988). Parts of this study were presented at the annual meeting of the American Association for Applied Linguistics in Salt Lake City on April 7, 2002; the Congress of the Social Sciences and Humanities in Toronto on May 26, 2002; and at the Congress of the International Association for Applied Linguistics in Singapore on December 12, 2002. I am grateful to the participating teachers and their students, to Lucy Fazio for her role as research associate in the data collection, to Jose Correa for his assistance with the statistical analyses, and to the following research assistants for contributions to various phases of this research: Susan Ballinger, Kristina Eisenhower, Andreanne Gagne, Sophie Beaudoin, Laura-Annie Bouffard, France Bourassa, Sophie Bourgeois, Elisa David, Melanie Mathieu, Sophie Prince, Andrea Sterzuk, and David Syncox. I gratefully acknowledge Leila Ranta, Iliana Panova, and four anonymous SSLA reviewers for their helpful comments on an earlier version of this paper.

A Study of the Frequency of Self-Mutilation in a Community Sample of Adolescents

Abstract: Currently little research exists examining self-mutilation (SM) in community samples of adolescents, despite tentative findings suggesting that self-harming behaviors, including SM may be increasing. The present study provides a comprehensive review of previous literature on the frequency of SM as well as preliminary epidemiological data concerning the frequency of SM in a community sample of high schools students. The relationship between SM, anxiety, and depressive symptomatology was also assessed. Four hundred and forty students from two schools, an urban and a suburban high school, were given a screening measure designed to assess for SM. Students who indicated that they hurt themselves on purpose also participated in a follow-up interview. Based on interviews it was found that 13.9% of all students reported having engaged in SM behavior at some time. Girls reported significantly higher rates of SM than did boys (64 vs. 36%, respectively). Self-cutting was found to be the most common type of SM, followed by self-hitting, pinching, scratching, and biting. Finally, students who self-mutilate reported significantly more anxiety and depressive symptomatology than students who did not self-mutilate. Results are also presented concerning demographic information and patterns of SM behavior.

Top Executive Locus of Control and Its Relationship to Strategy-Making, Structure, and Environment

Abstract: In a Canadian study the locus of control of top executives was found to bear a direct and significant relationship to the nature of corporate strategy but an indirect relationship to environment an...

Dissecting the genomic complexity underlying medulloblastoma

Abstract: Medulloblastoma is an aggressively growing tumour, arising in the cerebellum or medulla/brain stem. It is the most common malignant brain tumour in children, and shows tremendous biological and clinical heterogeneity. Despite recent treatment advances, approximately 40% of children experience tumour recurrence, and 30% will die from their disease. Those who survive often have a significantly reduced quality of life. Four tumour subgroups with distinct clinical, biological and genetic profiles are currently identified. WNT tumours, showing activated wingless pathway signalling, carry a favourable prognosis under current treatment regimens. SHH tumours show hedgehog pathway activation, and have an intermediate prognosis. Group 3 and 4 tumours are molecularly less well characterized, and also present the greatest clinical challenges. The full repertoire of genetic events driving this distinction, however, remains unclear. Here we describe an integrative deep-sequencing analysis of 125 tumour-normal pairs, conducted as part of the International Cancer Genome Consortium (ICGC) PedBrain Tumor Project. Tetraploidy was identified as a frequent early event in Group 3 and 4 tumours, and a positive correlation between patient age and mutation rate was observed. Several recurrent mutations were identified, both in known medulloblastoma-related genes (CTNNB1, PTCH1, MLL2, SMARCA4) and in genes not previously linked to this tumour (DDX3X, CTDNEP1, KDM6A, TBR1), often in subgroup-specific patterns. RNA sequencing confirmed these alterations, and revealed the expression of what are, to our knowledge, the first medulloblastoma fusion genes identified. Chromatin modifiers were frequently altered across all subgroups. These findings enhance our understanding of the genomic complexity and heterogeneity underlying medulloblastoma, and provide several potential targets for new therapeutics, especially for Group 3 and 4 patients.

Politics in the Supermarket: Political Consumerism as a Form of Political Participation:

Abstract: Both anecdotal and case-study evidence have long suggested that consumer behavior such as the buying or boycotting of products and services for political and ethical reasons can take on political significance. Despite recent claims that such behavior has become more widespread in recent years, political consumerism has not been studied systematically in survey research on political participation. Through the use of a pilot survey conducted among 1015 Canadian, Belgian, and Swedish students, we ascertain whether political consumerism is a sufficiently consistent behavioral pattern to be measured and studied meaningfully. The data from this pilot survey allow us to build a "political consumerism index" incorporating attitudinal, behavioral, and frequency measurements. Our analysis of this cross-national student sample suggests that political consumerism is primarily a tool of those who are distrustful of political institutions. However, political consumers have more trust in other citizens, and they are disproportionately involved in checkbook organizations. They also tend to score highly on measures of political efficacy and post-materialism. We strongly suggest including measurements of political consumerism together with other emerging forms of activism in future population surveys on political participation.