17,918 research outputs found
Television sport in the age of screens and content
The death of television has been long predicated in the digital age, yet it remains a powerful mediator of live sports. This article focuses on football and examines the implications for the sport of the move to an age of screens and content. These may be large screens in public places or in our homes or those at work or smaller screens carried in the palm of our hands, but what we use them for, how content gets onto those screens, and the implications for sports and sports fans remain compelling questions in the digital age. The article argues that through reflecting on major media sport events such as the FIFA World Cup, we see patterns of continuity in the role played by television as well as evidence of change
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Embedding sustainability through systems thinking in practice: some experiences from the Open University
One initiative that has emerged during the UN Decade of Education for Sustainable Development (ESD) through the work of the Open University Systems group has been its postgraduate programme in Systems Thinking and Practice (STiP). Built on some forty years’ experience of systems teaching and research at the Open University (OU), this open learning, distance taught programme is designed to develop students’ abilities to tackle complex messy situations, to provide skills to think more holistically and to work more collaboratively to avoid systemic failures. This paper critically reviews the trajectory of this programme –its past, present and future. It discusses the STiP programme’s many boundaries with other programmes and across sectors. Challenges of epistemology, ethics and purpose are explored, in relation to education for sustainability. The programme’s many and varied teaching and learning processes are explicated. The pedagogy of the STiP programme is grounded in a diverse range of students’ experiences and needs that by no means all focus explicitly, or primarily, on sustainability or sustainable development. Many OU students study part-time alongside their other commitments, both work and community-based. STiP students are all interested in systems and learning. But what STiP is a part of for them varies considerably. Students come mainly from the UK and rest of Europe. Many of their interactions are online through several different fora. A diverse, active and critical OU STiP alumni community has developed, initiated by the early graduates of the programme. Academics responsible for the programme also participate in this community’s deliberations, at the invitation of student alumni. In this paper, the authors build on their various experiences of the STiP programme and re-explore its contexts and boundaries from an ESD point of view. They use some of the systems heuristics that they teach, to critically reflect on both what is being achieved through this programme in relation to education for sustainability and what they and some of their past students and associate lecturers think ought to be occurring in this respect as they go forward
Stochastic superspace phenomenology at the Large Hadron Collider
We analyse restrictions on the stochastic superspace parameter space arising
from 1 fb of LHC data, and bounds on sparticle masses, cold dark matter
relic density and the branching ratio of the process . A region of parameter space consistent with these limits is found where
the stochasticity parameter, \xi, takes values in the range -2200 GeV < \xi <
-900 GeV, provided the cutoff scale is GeV.Comment: 9 pages, 13 figure
Simple Formula for Marcus-Hush-Chidsey Kinetics
The Marcus-Hush-Chidsey (MHC) model is well known in electro-analytical
chemistry as a successful microscopic theory of outer-sphere electron transfer
at metal electrodes, but it is unfamiliar and rarely used in electrochemical
engineering. One reason may be the difficulty of evaluating the MHC reaction
rate, which is defined as an improper integral of the Marcus rate over the
Fermi distribution of electron energies. Here, we report a simple analytical
approximation of the MHC integral that interpolates between exact asymptotic
limits for large overpotentials, as well as for large or small reorganization
energies, and exhibits less than 5\% relative error for all reasonable
parameter values. This result enables the MHC model to be considered as a
practical alternative to the ubiquitous Butler-Volmer equation for improved
understanding and engineering of electrochemical systems
Optogenetic examination of salt taste in mice
This thesis describes a series of experiments designed to evaluate the hypothesis that Type I taste receptor cells play a critical role in the detection and transduction of sodium taste via of epithelial sodium channels (ENaCs). Experiment 1 validated the function of a simple and affordable behavioral apparatus (hardware and software) for testing taste preference and taste aversion in mice. Experiment 2 demonstrated a pharmacological method for rapid induction of salt appetite in mice. Experiment 3 showed that optogenetic stimulation of Type I taste receptor cells (TRCs) in transgenic mice could drive consumption of tap water under conditions of salt hunger. The fourth and final experiment assessed whether conditioned taste aversions to sodium would generalize to optogenetic stimulation of Type I taste receptor cells in transgenic mice, with inconclusive results
SCRIPTSOURCE: making information on the world’s scripts and languages accessible
Although there is plenty of script and language information on the web, there has been a need for a site to present the information authoritatively and clearly, making it easier to understand the often complex relationships between scripts, characters and languages. ScriptSource has been designed to meet that need and to answer questions such as: ‘Which scripts can be used to write that language?’, or, ‘Which writing systems use this Unicode character?’. The site allows registered users to contribute information in the form of entries, which are moderated. ScriptSource imports character data from Unicode and locale data from the CLDR (Common Locale Data Repository). Language data is imported from the Ethnologue, and ScriptSource has individual pages for around 7000 languages, each of which has links to the corresponding language pages on several linguistic websites. Some language pages include additional links to sites, such as the ‘Aboriginal Languages of Australia’ site, and those offering relevant fonts and keyboards. This session will cover some of the needs ScriptSource has been designed to meet, and will explain the invaluable data association mechanism it uses to link information to scripts, characters and languages. The language documentation features of ScriptSource will be explained, including its facilities for the entry of exemplar character lists and phonemic data
Response inhibition is linked to emotional devaluation: behavioural and electrophysiological evidence
To study links between the inhibition of motor responses and emotional evaluation, we combined electrophysiological measures of prefrontal response inhibition with behavioural measures of affective evaluation. Participants first performed a Go-Nogo task in response to Asian and Caucasian faces (with race determining their Go or Nogo status), followed by a trustworthiness rating for each face. Faces previously seen as Nogo stimuli were rated as less trustworthy than previous Go stimuli. To study links between the efficiency of response inhibition in the Go-Nogo task and subsequent emotional evaluations, the Nogo N2 component was quantified separately for faces that were later judged to be high versus low in trustworthiness. Nogo N2 amplitudes were larger in response to low-rated as compared to high-rated faces, demonstrating that trial-by-trial variations in the efficiency of response inhibition triggered by Nogo faces, as measured by the Nogo N2 component, co-vary with their subsequent affective evaluation. These results suggest close links between inhibitory processes in top-down motor control and emotional responses
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Education and Global Competitiveness: Lessons for the United States from International Evidence
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