York University

About: York University is a education organization based out in Toronto, Ontario, Canada. It is known for research contribution in the topics: Population & Politics. The organization has 18899 authors who have published 43357 publications receiving 1568560 citations.

Observations of Bullying in the Classroom

Abstract: The prevalence and nature of bullying was assessed on the basis of observations of children's interactions in the classroom. This study was based on a systemic-developmental model of bullying and victimization. Participants were drawn from 1 public school in metropolitan Toronto. Twenty-seven children (19 boys, 8 girls) identified by teachers as aggressive and nonaggressive were targeted for filming. The 27 children were identified from the total number of students (N = 190) in the 8 classrooms. There were 60 bullying episodes observed from 28 hr of video and remote audio recordings of classroom observations. Bullying occurred twice every hour in the classroom and was short in duration. The boys and girls bullied at the same rate. Peers were involved in some capacity (from actively participating to passively onlooking) in 85% of the bullying episodes. Results suggest that bullying unfolds in a peer context in the classroom and is related to the type of classroom activity and individual characteri...

Emotion-Focused Therapy

Abstract: Emotion-focused therapy (EFT), also known as process-experiential therapy, integrates active therapeutic methods from gestalt and other humanistic therapies within the frame of a person-centred relationship (Elliott, Watson, Goldman & Greenberg, 2004). EFT updates person-centred and gestalt therapies by incorporating contemporary emotion theory and affective neuroscience, dialectical constructivism, and contemporary attachment theory. In this chapter, I review the current status of EFT, summarising its history, theory, practice, and outcome evidence.

Rigidity, computation, and randomization in network localization

Abstract: We provide a theoretical foundation for the problem of network localization in which some nodes know their locations and other nodes determine their locations by measuring the distances to their neighbors. We construct grounded graphs to model network localization and apply graph rigidity theory to test the conditions for unique localizability and to construct uniquely localizable networks. We further study the computational complexity of network localization and investigate a subclass of grounded graphs where localization can be computed efficiently. We conclude with a discussion of localization in sensor networks where the sensors are placed randomly.

Association Between MRI Exposure During Pregnancy and Fetal and Childhood Outcomes.

Abstract: Importance Fetal safety of magnetic resonance imaging (MRI) during the first trimester of pregnancy or with gadolinium enhancement at any time of pregnancy is unknown. Objective To evaluate the long-term safety after exposure to MRI in the first trimester of pregnancy or to gadolinium at any time during pregnancy. Design, Setting, and Participants Universal health care databases in the province of Ontario, Canada, were used to identify all births of more than 20 weeks, from 2003-2015. Exposures Magnetic resonance imaging exposure in the first trimester of pregnancy, or gadolinium MRI exposure at any time in pregnancy. Main Outcomes and Measures For first-trimester MRI exposure, the risk of stillbirth or neonatal death within 28 days of birth and any congenital anomaly, neoplasm, and hearing or vision loss was evaluated from birth to age 4 years. For gadolinium-enhanced MRI in pregnancy, connective tissue or skin disease resembling nephrogenic systemic fibrosis (NSF-like) and a broader set of rheumatological, inflammatory, or infiltrative skin conditions from birth were identified. Results Of 1 424 105 deliveries (48% girls; mean gestational age, 39 weeks), the overall rate of MRI was 3.97 per 1000 pregnancies. Comparing first-trimester MRI (n = 1737) to no MRI (n = 1 418 451), there were 19 stillbirths or deaths vs 9844 in the unexposed cohort (adjusted relative risk [RR], 1.68; 95% CI, 0.97 to 2.90) for an adjusted risk difference of 4.7 per 1000 person-years (95% CI, −1.6 to 11.0). The risk was also not significantly higher for congenital anomalies, neoplasm, or vision or hearing loss. Comparing gadolinium MRI (n = 397) with no MRI (n = 1 418 451), the hazard ratio for NSF-like outcomes was not statistically significant. The broader outcome of any rheumatological, inflammatory, or infiltrative skin condition occurred in 123 vs 384 180 births (adjusted HR, 1.36; 95% CI, 1.09 to 1.69) for an adjusted risk difference of 45.3 per 1000 person-years (95% CI, 11.3 to 86.8). Stillbirths and neonatal deaths occurred among 7 MRI-exposed vs 9844 unexposed pregnancies (adjusted RR, 3.70; 95% CI, 1.55 to 8.85) for an adjusted risk difference of 47.5 per 1000 pregnancies (95% CI, 9.7 to 138.2). Conclusions and Relevance Exposure to MRI during the first trimester of pregnancy compared with nonexposure was not associated with increased risk of harm to the fetus or in early childhood. Gadolinium MRI at any time during pregnancy was associated with an increased risk of a broad set of rheumatological, inflammatory, or infiltrative skin conditions and for stillbirth or neonatal death. The study may not have been able to detect rare adverse outcomes.

Do international acquisitions by emerging-economy firms create shareholder value? The case of Indian firms

Abstract: While overseas acquisitions by emerging-economy firms are gaining increased attention from the business press, our understanding of whether and why this inorganic mode of international expansion creates value to acquirer firms is limited. We argue that international acquisitions facilitate internalization of tangible and intangible resources that are both difficult to trade through market transactions and take time to develop internally, thus constituting an important strategic lever of value creation for emerging-economy firms. Furthermore, the magnitude of value created will be higher when the target firms are located in advanced economic and institutional environments: country markets that carry the promise of higher quality of resources, and therefore, stronger complementarity to the existing capabilities of emerging-economy firms. An event study of 425 cross-border acquisitions by Indian firms during 2000–2007 supports our predictions.