599 research outputs found

    Schools as learning communities: effective professional development

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    This paper draws upon recent research and literature to discuss what is known about effective professional development. It begins with a brief discussion of terminology and offers a definition of professional development before investigating in more detail what constitutes effective professional development. This links to a discussion about the nature of learning communities and how professional development is led within such communities. Finally, we consider the changing nature of provision and approaches to teacher development and learning with a greater focus on school-based provision with a practitioner emphasis

    Data and inquiry driving school improvement : developments in England

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    In this paper we draw upon recent developments in England to show how school leaders are using evidence and data for the purposes of school improvement and teachers are becoming more «research engaged» or research orientated. Particular interest is given to how schools are attempting to close the gap between the performance of children from different socioeconomic backgrounds. A policy initiative – the Pupil Premium – has led to school leaders looking closely at a range of improvement and intervention strategies, their effectiveness and the impact they have, especially on poor pupils. We consider this and other related developments further, within an emerging self-improving system, and argue that school leaders are crucial for both data-driven improvement and for ensuring that school-based decision-making becomes evidence based or at least evidence informed. Research engagement does not just happen – it has to be led and managed. The vision is to change the culture of schooling so that practitioner inquiry and research engagement are important parts of teachers’ professional practice. Inquiry-based school systems have been found to be a hallmark of high performing countries (Mourshed et al., 2010) and school leaders are key to the success of this system and cultural change. The paper concludes by considering what factors are important for this change to be realised

    SVA retrotransposons as modulators of gene expression.

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    Endogenous mobile genetic elements can give rise to de novo germline or somatic mutations that can have dramatic consequences for genome regulation both local and possibly more globally based on the site of integration. However if we consider them as "normal genetic" components of the reference genome then they are likely to modify local chromatin structure which would have an effect on gene regulation irrelevant of their ability to further transpose. As such they can be treated as any other domain involved in a gene × environment interaction. Similarly their evolutionary appearance in the reference genome would supply a driver for species specific responses/traits. Our recent data would suggest the hominid specific subset of retrotransposons, SINE-VNTR-Alu (SVA), can function as transcriptional regulatory domains both in vivo and in vitro when analyzed in reporter gene constructs. Of particular interest in the SVA element, were the variable number tandem repeat (VNTR) domains which as their name suggests can be polymorphic. We and others have previously shown that VNTRs can be both differential regulators and biomarkers of disease based on the genotype of the repeat. Here, we provide an overview of why polymorphism in the SVA elements, in particular the VNTRs, could alter gene expression patterns that could be mechanistically associated with different traits in evolution or disease progression in humans

    Accountability and responsibility: 'Rogue' school leaders and the induction of new teachers in England

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    This paper considers the professional responsibility of schools in England to provide effective induction practices in the context of a central government mandated policy. It looks at individual schools as ‘habitats’ for induction and the role of school leaders and LEAs as facilitators or inhibitors. Notions of professional responsibility and public accountability are used to analyse the small number of ‘rogue’ school leaders who, within the new legislative framework, treat new teachers unprofessionally and waste public resources. A typology of ‘rogue’ schools that are in some way deviant in transgressing induction requirements is developed and the various sanctions that can be deployed against such schools are examined. How LEAs handle their monitoring and accountability role and manage deviant schools is considered. Finally, suggestions are made for improvements, such as the need to clarify professional responsibility and refine systems of professional accountability

    At the dawn of the transcriptomic medicine

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    Impact statement This review describes the impact of transcriptomics on experimental biology and its integration into medical practice. Transcriptomics is an essential part of modern biomedical research based on highly sophisticated and reliable technology. Transcriptomics can aid clinical practice and improve the precision of clinical diagnoses and decision-making by complementing existing clinical best practice. The power of which will be increased when combined with genomic variation from genome wide association studies and next generation sequencing. We are witnessing the implementation of RNA-based technologies in clinical practice that will eventually lead to the establishment of transcriptional medicine as a routine tool in diagnosis. Progress in genomic analytical technologies has improved our possibilities to obtain information regarding DNA, RNA, and their dynamic changes that occur over time or in response to specific challenges. This information describes the blueprint for cells, tissues, and organisms and has fundamental importance for all living organisms. This review focuses on the technological challenges to analyze the transcriptome and what is the impact of transcriptomics on precision medicine. The transcriptome is a term that covers all RNA present in cells and a substantial part of it will never be translated into protein but is nevertheless functional in determining cell phenotype. Recent developments in transcriptomics have challenged the fundamentals of the central dogma of biology by providing evidence of pervasive transcription of the genome. Such massive transcriptional activity is challenging the definition of a gene and especially the term “pseudogene” that has now been demonstrated in many examples to be both transcribed and translated. We also review the common sources of biomaterials for transcriptomics and justify the suitability of whole blood RNA as the current optimal analyte for clinical transcriptomics. At the end of the review, a brief overview of the clinical implications of transcriptomics in clinical trial design and clinical diagnosis is given. Finally, we introduce the transcriptome as a target for modern drug development as a tool for extending our capacity for precision medicine in multiple diseases

    Organisation of cingulum bundle fibres connecting the anterior thalamic nuclei with the rodent anterior cingulate and retrosplenial cortices

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    Despite considerable interest in the properties of the cingulum bundle, descriptions of the composition of this major pathway in the rodent brain have not kept pace with advances in tract tracing. Using complementary approaches in rats and mice, this study examined the dense, reciprocal connections the anterior thalamic nuclei have with the cingulate and retrosplenial cortices, connections thought to be major contributors to the rodent cingulum bundle. The rat data came from a mixture of fluorescent and viral tracers, some injected directly into the bundle. The mouse data were collated from the Allen Mouse Brain Atlas. The projections from the three major anterior thalamic nuclei occupied much of the external medullary stratum of the cingulum bundle, where they were concentrated in its more medial portions. These anterior thalamic projections formed a rostral-reaching basket of efferents prior to joining the cingulum bundle, with anteromedial efferents taking the most rostral routes, often reaching the genu of the corpus callosum, while anterodorsal efferents took the least rostral route. In contrast, the return cortico-anterior thalamic projections frequently crossed directly through the bundle or briefly joined the internal stratum of the cingulum bundle, often entering the internal capsule before reaching the anterior thalamus. These analyses confirm that anterior thalamic connections comprise an important component of the rodent cingulum bundle, while also demonstrating the very different routes used by thalamo-cortical and cortico-thalamic projections. This information reveals how the composition of the cingulum bundle alters along its length

    The Direction of Ejection of Photo-electrons Produced by X-rays

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    An evolutionary conserved region (ECR) in the human dopamine receptor D4 gene supports reporter gene expression in primary cultures derived from the rat cortex

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    <p>Abstract</p> <p>Background</p> <p>Detecting functional variants contributing to diversity of behaviour is crucial for dissecting genetics of complex behaviours. At a molecular level, characterisation of variation in exons has been studied as they are easily identified in the current genome annotation although the functional consequences are less well understood; however, it has been difficult to prioritise regions of non-coding DNA in which genetic variation could also have significant functional consequences. Comparison of multiple vertebrate genomes has allowed the identification of non-coding evolutionary conserved regions (ECRs), in which the degree of conservation can be comparable with exonic regions suggesting functional significance.</p> <p>Results</p> <p>We identified ECRs at the dopamine receptor D4 gene locus, an important gene for human behaviours. The most conserved non-coding ECR (D4ECR1) supported high reporter gene expression in primary cultures derived from neonate rat frontal cortex. Computer aided analysis of the sequence of the D4ECR1 indicated the potential transcription factors that could modulate its function. D4ECR1 contained multiple consensus sequences for binding the transcription factor Sp1, a factor previously implicated in DRD4 expression. Co-transfection experiments demonstrated that overexpression of Sp1 significantly decreased the activity of the D4ECR1 <it>in vitro</it>.</p> <p>Conclusion</p> <p>Bioinformatic analysis complemented by functional analysis of the DRD4 gene locus has identified a) a strong enhancer that functions in neurons and b) a transcription factor that may modulate the function of that enhancer.</p
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