Generation of solar Hα impact polarization by fragmented evaporative upflows

In this paper a novel mechanism is proposed for the generation of Hα impact polarization observed during some solar flares. Rather than being generated by the primary particle beams transporting energy from the chromosphere to the corona, we suggest that following heating, the solar chromosphere evaporates in a fragmented manner, and that impact excitations in the regions of interaction of hot evaporating and cool non-evaporating material locally generates impact-polarized Hα emission. This thermal upflow model is more consistent with the large areas and times over which polarization is observed than are beam models. A simple model for the process is given, and the resulting polarization is calculated and compared with observations, under two assumptions about the number density of neutral particles in the interaction regions

Creating Reality TV: Kardashian Style

Lyndsay Duthie, and Lucy Brown, ‘Creating Reality TV: Kardashian Style’. Paper presented at the Kimposium: A Symposium about all things Kardashian, 26 November 2015, Brunel University, London.This chapter explores how to create compelling reality television ‘Keeping up with the Kardashians’ (KUWTK) style. As authors we have both worked on reality formats and now as academics, we are able to deconstruct the format of these types of shows from an insider’s point of view. We go behind the scenes to reveal the mechanics of the format, explain the casting dynamics, as well as the key ingredients that go into a successful reality series, from a programme maker’s point of view.Peer reviewe

Assessing creativity in TV studio production

This paper will seek to gauge how media production can be taught within Higher Educational Institutions to inspire the next generation of programme makers to create original student led productions, rather than replicating content. Brown and Duthie ask how media educators and teachers of film and television production courses assess creativity and discuss innovative approaches to learning, teaching and assessment in the academy and ask how we can encourage risk taking in a risk averse environment. This paper considers whether contemporary global TV formats can be the catalyst for new ideas and content and how to encourage students to be film and TV making pioneers

From West Street to Dr Pixley KaSeme Street: How contemporary racialised subjectivities are (re)produced in the city of Durban.

Thesis (Ph.D.)-University of KwaZulu-Natal, Pietermaritzburg, 2009.From West Street to Dr Pixley kaSeme Street:1 How contemporary racialised subjectivities are (re)p roduced in the city of Durban This thesis is part of the larger mission to understand and challenge the ongoing reproduction of race. The focus of this particular project is on how race is perpetuated through the continuing construction of our racialised subjectivities in/through place. This idea is broadly epitomised by the idea that „who we are is where we are? (Dixon and Durrheim, 2000) and the recognition that this process is highly racialised. This emphasis locates this project squarely within the social psychology of race, place and identity. To collect data that could facilitate access to racialised place-identity constructions I used a mobile methodology wherein black and white city government officials (who had grown up in Durban) took me on a walking and/or driving tour of the city of Durban talking with me about the racial transformation of this city from our childhood (in apartheid times) to the present (post-apartheid) city. These conversations were digitally recorded and transcribed for analysis. I also recorded various activities that took place during the tour and made extensive pre-tour and post-tour notes. All of this material was utilised analytically. Initially I analysed the discursive practices which we (the participants) engaged in as we constructed the racialised city historically and contemporaneously and reflected on the attendant subjectivities of blackness and whiteness invoked by this particular place-identity talk. When it became apparent that there was more to the production of race on the tours than that which was produced by our implaced talk my analysis progressed to an examination of other practices which produced race on the tours, namely, our material/embodied interactive practices. Through paying close analytic attention to our interaction on the tours it became evident that key practices which produced race on the tours – the spatial, discursive and embodied practices – were inextricably connected to each other in a „trialectical? (tri-constitutional) relationship. I argue that we need to analyse this trialectical relationship further because of the ways in which it facilitates the creation of racial sticking points which obfuscate racial transformation in South Africa

Teaching TV studio production

British Film Institute (BFI) Media Conference – Teaching TV Studio Production (2016)

Modeling of the hydrogen Lyman lines in solar flares

The hydrogen Lyman lines (91.2 nm < λ < 121.6 nm) are significant contributors to the radiative losses of the solar chromosphere, and they are enhanced during flares. We have shown previously that the Lyman lines observed by the Extreme Ultraviolet Variability instrument onboard the Solar Dynamics Observatory exhibit Doppler motions equivalent to speeds on the order of 30 km s−1. However, contrary to expectations, both redshifts and blueshifts were present and no dominant flow direction was observed. To understand the formation of the Lyman lines, particularly their Doppler motions, we have used the radiative hydrodynamic code, RADYN, along with the radiative transfer code, RH, to simulate the evolution of the flaring chromosphere and the response of the Lyman lines during solar flares. We find that upflows in the simulated atmospheres lead to blueshifts in the line cores, which exhibit central reversals. We then model the effects of the instrument on the profiles, using the Extreme Ultraviolet Variability Experiment (EVE) instrument's properties. What may be interpreted as downflows (redshifted emission) in the lines, after they have been convolved with the instrumental line profile, may not necessarily correspond to actual downflows. Dynamic features in the atmosphere can introduce complex features in the line profiles that will not be detected by instruments with the spectral resolution of EVE, but which leave more of a signature at the resolution of the Spectral Investigation of the Coronal Environment instrument onboard the Solar Orbiter

Feasibility and acceptability of exercise interventions for adults with tendinopathy: a mixed methods review.

This is a protocol for a review that aims to explore the feasibility and acceptability of any exercise intervention for the treatment of any tendinopathy. The first specific review question is: What is the current knowledge about the feasibility of delivering exercise interventions for tendinopathy from the perspective of those delivering and receiving interventions? Specifically: a) How feasible is the delivery of exercise therapy for tendinopathy in terms of rates (e.g. of adherence, attendance, fidelity); and b) What are patients' and healthcare professionals' perceptions of the feasibility of exercise therapy for tendinopathy? The second specific review question is: What is the current knowledge about acceptability of receiving exercise therapy for tendinopathy from the perspective of people with tendinopathy? Specifically: a) How acceptable is exercise therapy in terms of tolerability; and b) What are patients' and healthcare professionals' perceptions of the acceptability of exercise therapy for tendinopathy