53 research outputs found

    Effect of disorder on a pressure-induced z = 1 magnetic quantum phase transition

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    Pressure-induced ordering close to a z=1 quantum-critical point is studied in the presence of bond disorder in the quantum spin system (C4H12N2)Cu2(Cl1−xBrx)6 (PHCX) by means of muon-spin rotation and relaxation. As for the pure system (C4H12N2)Cu2Cl6, pressure allows PHCX with small levels of disorder (x≀7.5%) to be driven through a quantum-critical point separating a low-pressure quantum paramagnetic phase from magnetic order at high pressures. However, the pressure-induced ordered state is highly inhomogeneous for disorder concentrations x>1%. This behavior might be related to the formation of a quantum Griffiths phase above a critical disorder concentration 7.5

    The rise of policy coherence for development: a multi-causal approach

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    In recent years policy coherence for development (PCD) has become a key principle in international development debates, and it is likely to become even more relevant in the discussions on the post-2015 sustainable development goals. This article addresses the rise of PCD on the Western donors’ aid agenda. While the concept already appeared in the work of Organisation for Economic Co-operation and Development (OECD) in the early 1990s, it took until 2007 before PCD became one of the Organisation’s key priorities. We adopt a complexity-sensitive perspective, involving a process-tracing analysis and a multi-causal explanatory framework. We argue that the rise of PCD is not as contingent as it looks. While actors such as the EU, the DAC and OECD Secretariat were the ‘active causes’ of the rise of PCD, it is equally important to look at the underlying ‘constitutive causes’ which enabled policy coherence to thrive well

    Four challenges in the field of alternative, radical and citizens’ media research

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    In January 1994 the Zapatista movement in southern Mexico inaugurated a new era of media use for dissent. Since that time, an array of dissenting collectives and individuals have appropriated media technologies in order to make their voices heard or to articulate alternative identities. From Zapatista media to the Arab Spring, social movements throughout the world are taking over, hybridizing, recycling, and adapting media technologies. This new era poses a new set of challenges for academics and researchers in the field of Communication for Social Change (CfSC). Based on examples from Mexico, Lebanon, and Colombia, this article highlights and discusses four such research challenges: accounting for historical context; acknowledging the complexity of communication processes; anchoring analysis in a political economy of information and communication technologies; and positioning new research in relation to existing knowledge and literature within the field of communication and social change.Yeshttps://us.sagepub.com/en-us/nam/manuscript-submission-guideline

    The translation of articles from the United Nations Convention on the Rights of the Child into education legislation:the narrowing of Article 12 as a consequence of translation

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    This paper is concerned with the inclusion, exclusion and reshaping of articles within the United Nations Convention on the Rights of the Child (CRC) as they are translated into English education legislation. The CRC comprises 54 articles aimed at outlining rights and freedoms for children and was ratified by the United Kingdom (UK) government in 1991. The paper builds on a previous publication by the authors which highlighted how the mobilisation of articles within the CRC into professional practice undergoes multiple translations. This paper takes an in‐depth and critical look at the first stage of the translation process in which articles are mobilised from the CRC into national legislation. Specifically, the paper presents findings from a documentary analysis which explored the translation of principles pertaining to Article 12 of the CRC into English Education Regulations, Acts and Statutory Guidance for schools. Findings demonstrate that the reshaping of the article within education legislation strongly reflects the government's priorities and agendas. The study raises new insights into the need to establish processes to ensure the full mobilisation of Article 12 and questions whether specific principles pertaining to the article could or should be incorporated into national legislative systems.Output Status: Forthcoming/Available Onlin

    Anxiety Levels in Children with Autism Spectrum Disorder:A Meta-Analysis

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    The aim of the current study was to meta-analytically examine whether anxiety levels in children with autism spectrum disorders (ASD) are elevated. A total of 83 articles were selected from a systematic literature search and were included in the meta-analyses. Results demonstrated that children with ASD had higher anxiety levels compared to typically developing children, and this difference increased with IQ. Youth with ASD also tended to have higher anxiety levels compared to clinically referred children, and this difference increased with age. Children with ASD had higher anxiety levels compared to youth with externalizing or developmental problems, but not when compared to youth with internalizing problems. The study findings highlight the importance of more research in order to fully understand the nature and development of anxiety in children with ASD. More specifically, the results suggest that especially high-functioning adolescents with ASD may be at risk for developing anxiety disorders. Therefore, it seems important to carefully follow and monitor children with ASD transcending to adolescenc
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