16,214 research outputs found
Sociocultural understandings of the silent period: young bilingual learners in early years settings
This briefing draws from longitudinal Doctoral research (Bligh, 2011) to re-examine the emergent stage of English language acquisition, the silent period, through the experiences of two early years bilingual learners. Historical understandings of Vygotsky (1986) provide the platform through which sociocultural learning theory is applied in relation to the silent period. Legitimate peripheral participation (Lave and Wenger, 1991), is examined as a workable concept through which to explore the initial learning trajectory of an emergent bilingual learner whilst negotiating participation within, through and beyond an early years community of practice. The initial research employed multi-method ethnographic approach to data gathering, including participant observations, unstructured interviews with monolingual participants, participant narratives and significant auto-ethnographic accounts. In this briefing the researcher focuses upon ‘gaze following’ (Flewitt, 2005) as an adjunct to participant observations. The findings are revealed through a two stage analytic process. Data is initially funnelled through thematic analysis, (Braun and Clarke, 2006) and tested out against sociocultural theorising. The deductive process highlights nine vignettes which present the silent period as a crucial time for learning. One professional narrative account and one significant vignette are examined in this briefing. Examining the silent period through a sociocultural lens reveals the initial stage of language acquisition as a significant, but lesser acknowledged contribution to learning in the early years community of practice. Key words: bilingual; silent period; legitimate peripheral participation; sociocultural; ethnographic; participation
Infomercial: A Marketing Odyssey
Few forms of media are so derided as the infomercial. It seems to ooze tackiness and low production standards, coupled with shameless pandering and questionable selling points. Still, the infomercial, or “direct-response” commercial, can be an astoundingly effective selling tool. In this age of ubiquitous mass media, infomercials for products such as the “Snuggie” and the “Shake Weight” have used their inherent “butt-of-joke” qualities to make millions and to attain cultural icon status. For this project, I researched the infomercial as a genre in an attempt to explain its success and rhetorical appeal. I then applied my analysis to the writing, production, and activity-tracking of my own infomercial. The results may offer insight into the rhetorical strategies of rapidly-evolving new media genres and American pop-culture commerce
Public value summary background paper
The Australian Centre of Excellence for Local Government (ACELG) at UTS has published a background paper about understanding and promoting public value creation within Australian local government. The paper provides a definition of public value and public value creation from key literature, and links this with current practice within the sector.
The Public Value project is a partnership between the Local Government Business Excellence Network (LGBEN) and ACELG and explores how councils create public value in a broad sense – or ‘the common good’ – and deliver this value specifically through planning and managing and delivering a wide range of services, programs and projects.
A final phase of the project will provide examples of public value so frameworks and tools can be developed for councils looking at undertaking continual improvement initiatives
Energy localisation and frequency analysis in the locust ear
Animal ears are exquisitely adapted to capture sound energy and perform signal analysis. Studying the ear of the locust, we show how frequency signal analysis can be performed solely by using the structural features of the tympanum. Incident sound waves generate mechanical vibrational waves that travel across the tympanum. These waves shoal in a tsunami like fashion, resulting in energy localisation that focuses vibrations onto the mechanosensory neurons in a frequency dependent manner. Using finite element analysis, we demonstrate that two mechanical properties of the locust tympanum, distributed thickness and tension, are necessary and sufficient to generate frequency-dependent energy localisation. <br/
Berberine for prevention of dementia associated with diabetes and its comorbidities: A systematic review
Background
A growing number of epidemiological studies indicate that metabolic syndrome (MetS) and its associated features play a key role in the development of certain degenerative brain disorders, including Alzheimer’s disease and vascular dementia. Produced by several different medicinal plants, berberine is a bioactive alkaloid with a wide range of pharmacological effects, including antidiabetic effects. However, it is not clear whether berberine could prevent the development of dementia in association with diabetes.
Objective
To give an overview of the therapeutic potential of berberine as a treatment for dementia associated with diabetes.
Search strategy
Database searches A and B were conducted using PubMed and ScienceDirect. In search A, studies on berberine’s antidementia activities were identified using “berberine” and “dementia” as search terms. In search B, recent studies on berberine’s effects on diabetes were surveyed using “berberine” and “diabetes” as search terms.
Inclusion criteria
Clinical and preclinical studies that investigated berberine’s effects associated with MetS and cognitive dysfunction were included.
Data extraction and analysis
Data from studies were extracted by one author, and checked by a second; quality assessments were performed independently by two authors.
Results
In search A, 61 articles were identified, and 22 original research articles were selected. In search B, 458 articles were identified, of which 101 were deemed relevant and selected. Three duplicates were removed, and a total of 120 articles were reviewed for this study. The results demonstrate that berberine exerts beneficial effects directly in the brain: enhancing cholinergic neurotransmission, improving cerebral blood flow, protecting neurons from inflammation, limiting hyperphosphorylation of tau and facilitating β-amyloid peptide clearance. In addition, evidence is growing that berberine is effective against diabetes and associated disorders, such as atherosclerosis, cardiomyopathy, hypertension, hepatic steatosis, diabetic nephropathy, gut dysbiosis, retinopathy and neuropathy, suggesting indirect benefits for the prevention of dementia.
Conclusion
Berberine could impede the development of dementia via multiple mechanisms: preventing brain damages and enhancing cognition directly in the brain, and indirectly through alleviating risk factors such as metabolic dysfunction, and cardiovascular, kidney and liver diseases. This study provided evidence to support the value of berberine in the prevention of dementia associated with MetS
Teaching statistics to medical students using problem-based learning: the Australian experience
Background: Problem-based learning (PBL) is gaining popularity as a teaching method in UK medical schools, but statistics and research methods are not being included in this teaching. There are great disadvantages in omitting statistics and research methods from the main teaching. PBL is well established in Australian medical schools. The Australian experience in teaching statistics and research methods in curricula based on problem-based learning may provide guidance for other countries, such as the UK, where this method is being introduced. Methods: All Australian medical schools using PBL were visited, with two exceptions. Teachers of statistics and medical education specialists were interviewed. For schools which were not visited, information was obtained by email. Results: No Australian medical school taught statistics and research methods in a totally integrated way, as part of general PBL teaching. In some schools, statistical material was integrated but taught separately, using different tutors. In one school, PBL was used only for 'public health' related subjects. In some, a parallel course using more traditional techniques was given alongside the PBL teaching of other material. This model was less successful than the others. Conclusions: There are several difficulties in implementing an integrated approach. However, not integrating is detrimental to statistics and research methods teaching, which is of particular concern in the age of evidence-based medicine. Some possible ways forward are suggested
Decoding learning: the proof, promise and potential of digital education
With hundreds of millions of pounds spent on digital technology for education every year – from interactive whiteboards to the rise of one–to–one tablet computers – every new technology seems to offer unlimited promise to learning. many sectors have benefitted immensely from harnessing innovative uses of technology. cloud computing, mobile communications and internet applications have changed the way manufacturing, finance, business services, the media and retailers operate.
But key questions remain in education: has the range of technologies helped improve learners’ experiences and the standards they achieve? or is this investment just languishing as kit in the cupboard? and what more can decision makers, schools, teachers, parents and the technology industry do to ensure the full potential of innovative technology is exploited? There is no doubt that digital technologies have had a profound impact upon the management of learning. institutions can now recruit, register, monitor, and report on students with a new economy, efficiency, and (sometimes) creativity. yet, evidence of digital technologies producing real transformation in learning and teaching remains elusive. The education sector has invested heavily in digital technology; but this investment has not yet resulted in the radical improvements to learning experiences and educational attainment. in 2011, the Review of Education Capital found that maintained schools spent £487 million on icT equipment and services in 2009-2010.
1 since then, the education system has entered a state of flux with changes to the curriculum, shifts in funding, and increasing school autonomy. While ring-fenced funding for icT equipment and services has since ceased, a survey of 1,317 schools in July 2012 by the british educational suppliers association found they were assigning an increasing amount of their budget to technology. With greater freedom and enthusiasm towards technology in education, schools and teachers have become more discerning and are beginning to demand more evidence to justify their spending and strategies. This is both a challenge and an opportunity as it puts schools in greater charge of their spending and use of technolog
A study of effective evaluation models and practices for technology supported physical learning spaces (JELS)
The aim of the JELS project was to identify and review the tools, methods and frameworks used to evaluate technology supported or enhanced physical learning spaces. A key objective was to develop the sector knowledgebase on innovation and emerging practice in the evaluation of learning spaces, identifying innovative methods and approaches beyond traditional post-occupancy evaluations and surveys that have dominated this area to date. The intention was that the frameworks and guidelines discovered or developed from this study could inform all stages of the process of implementing a technology supported physical learning space. The study was primarily targeted at the UK HE sector and the FE sector where appropriate, and ran from September 2008 to March 2009
Vorsprung durch Technik: multi-display learning spaces and art-historical method
The trajectory and heuristic success of Art History as a discipline has always been inseparably linked to the technical means of visualizing the material that is at its core. When in the late 19th century first analogous, then double-slide projection was introduced, associated methodological opportunities were identified and formalised through debate within the discipline. This led to a profound change in the discipline’s analytical rhetoric, installing vis-à-vis or comparative viewing as the primary mode of art-historical inquiry throughout the 20th century. In contrast, the more recent move to PowerPoint or equivalent linear digital presentation has not received the same form of attention within Art History. Whilst the impact on disciplinary rhetoric is undeniable, the affordances these technologies offer to the analytical frameworks of Art History are not well understood, nor have they been used to develop the discipline’s methodology further.
In this paper we examine the intricate relationship between analytical method and mode of visualisation. We begin by examining two types of inquiry prevalent in contemporary art-historical scholarship — semiotics-based visual culture studies and critical iconology — and focus on their specific affordances with regard to subject matter and mode of inquiry. Next, drawing upon our experiences of using Multi-Display Learning Spaces (MD-LS) within postgraduate visual arts education, we consider two types of current digital presentation tools: PowerPoint, which is commonly associated with the linear presentation of sequences of single slides, and Multi-Slides, a multi-display system designed to allow the shared viewing of multiple visual materials simultaneously. We propose that MD-LS, which encourage critical reflection upon displayed material by generating spatial configurations which afford orchestrated interaction between audience and materials, are better suited to facilitate contemporary modes of art-historical inquiry than linear presentation systems, which foster excluding forms of analytical rhetoric.
We conclude by proposing the informed use of digital presentation tools to engage actively in the deliberated authoring of perception. We wish to stitch what we term ‘multiple perspective inquiry’, in which the presentation of multiple pieces of visual evidence creates the conditions for complex argumentation within learning and research, into the discipline’s use of visual presentation technology. Finally we explore the implications of this technological shift for thinking about and practicing some of Art History’s most fundamental methods
How Far Can I Trust You? The Impact of Distance and Cultural Values on Leaders’ Trustworthiness
Employees\u27 level of trust in leaders has long been deemed an important key to successful organizational dynamics and performance. Utilizing survey data, the current study investigates differences in levels of trust between one\u27s immediate manager and the organization\u27s top leadership, the impact of individualism/collectivism on these levels of trust, and the influence of leader-follower distance on leadership trust. Results revealed higher levels of trust for direct leaders than organizational leaders among the U.S. sample. While individualism/collectivism was not found to significantly affect levels of leadership trust, perceptions of less leadership distance had a positive impact on levels of leadership trust
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