7,637 research outputs found
Electron Velocity Distribution in Slightly Ionized Argon with Crossed Electric and Magnetic Fields
Reflections on social work 2020 under Covid-19 online magazine
Social Work 2020 under Covid-19 was a free online magazine conceived just before the UK’s Covid-19 full lockdown began, in late March 2020. It ran for five editions until 14 July 2020. In this time it published close to 100 articles from academics, people with lived experience, practitioners and students. It contained a far higher proportion of submissions from the last three groups of contributors than traditional journals. This article draws on the six-person editorial collective’s reflections on the magazine: it considers its founding purposes; its role in fostering social work community, utilizing an adaptation of social capital classifications; and its potential as a learning tool. It concludes by arguing that the magazine illustrates the potential for free online publications to be an important emergent vehicle for ‘everyday activism’ within the field of social work
2D Gravity on with Chern-Simons Corrections
We study 2D Maxwell-dilaton gravity with higher order corrections given by
the Chern-Simons term. The model admits three distinctive vacuum
solutions. By making use of the entropy function formalism we find the entropy
of the solutions which is corrected due to the presence of the Chern-Simons
term. We observe that the form of the correction depends not only on the
coefficient of the Chern-Simons term, but also on the sign of the electric
charge; pointing toward the chiral nature of the dual CFT. Using the asymptotic
symmetry of the theory as well as requiring a consistent picture we can find
the central charge and the level of U(1) current. Upon uplifting the solutions
to three dimensions we get purely geometric solutions which will be either
or warped with an identification.Comment: 15 pages; V2: refs adde
Understanding medical students' transformative experiences of early pre-clinical international rural placement over a 20-year period
Introduction
Rural placements are an important component of rural medical education programs seeking to develop rural practice pathways for medical students. These placements are usually domestic, but James Cook University in Australia developed an international rural placement program in the first half of the medical course that was funded through bursaries. This study explores how the international rural placement helped to shape the lives (personal development and learning) of the participants, using Transformational Learning Theory as a framework for identifying and describing the transformational elements, process and impact of the program.
Methods
Sixty-five students received a bursary for an international rural placement between 2001–2019. All were contacted by email and invited to participate in a short survey and a follow-up interview. Fifteen participants agreed and twelve were able to participate in individual semi-structured interviews which were recorded, transcribed and analysed using inductive thematic analysis.
Results
Participants reported that the bursary provided a “once in a lifetime opportunity” to “experience eye-opening and culturally rich difference”. Nonetheless, some elements of the placement experience presented disorientating dilemmas that triggered deep reflections and shifts in perceptions. The bursary recipients realised that “being open-minded” allowed them “enjoy good company”. They were also able to assume “outsider view which allowed reassessment of their own country” and the “isolation experiences gingered desire to right health wrongs”. The triggers and mental shifts had significant impact on the bursary recipients and fostered the development of “inspirational new horizons” based on an appreciation of the “value of rural practice” and “role-modelling for life-long learning.” These findings are consistent with Transformational Learning Theory.
Conclusion
Participants in this study reported meaningful and strongly positive impacts from the experiences gained during an international rural clinical placement early in their course. They described transformative experiences which appear to contribute strongly to personal development. This finding supports maintaining opportunities for international experiences during rurally-oriented medical programs as these may impact longer term career choice
The Central Charge of the Warped AdS^3 Black Hole
The AdS/CFT conjecture offers the possibility of a quantum description for a
black hole in terms of a CFT. This has led to the study of general AdS^3 type
black holes with a view to constructing an explicit toy quantum black hole
model. Such a CFT description would be characterized by its central charge and
the dimensions of its primary fields. Recently the expression for the central
charges (C_L, C_R) of the CFT dual to the warped AdS^3 have been determined
using asymptotic symmetry arguments. The central charges depend, as expected,
on the warping factor. We show that topological arguments, used by Witten to
constrain central charges for the BTZ black hole, can be generalized to deal
with the warped AdS^3 case. Topology constrains the warped factor to be
rational numbers while quasinormal modes are conjectured to give the dimensions
of primary fields. We find that in the limit when warping is large or when it
takes special rational values the system tends to Witten's conjectured unique
CFT's with central charges that are multiples of 24.Comment: 6 pages, Latex fil
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