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Symmetry, Spaces and Undecidability - Martin Bridson

Series
The Secrets of Mathematics
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The understanding of the possible geometries in dimension 3 is one of the triumphs of 20th century mathematics. In this talk Martin Bridson explains why such an understanding is impossible in higher dimensions.
When one wants to describe the symmetries of any object or system, in mathematics or everyday life, the right language to use is group theory. How might one go about understanding the universe of all groups and what kinds of novel geometry might emerge as we explore this universe?

Martin Bridson became Head of the Mathematical Institute on 01 October 2015. To mark the occasion he gave this Inaugural Chairman's Public Lecture.
Creative Commons Licence
Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK (BY-NC-SA): England & Wales; https://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Episode Information

Series
The Secrets of Mathematics
People
Martin Bridson
Keywords
geometry
symmetry
dimensions
group theory
undecidability
Department: Mathematical Institute
Date Added: 07/12/2015
Duration: 01:01:38

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The Oxford Dodo: Culture at the Crossroads

Series
TORCH | The Oxford Research Centre in the Humanities
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An interdisciplinary panel discussion exploring the life and legacy of the dodo
Why does the dodo continue to haunt our imagination? Why is it the poster bird for extinction? How has it been represented across time and culture? An interdisciplinary panel explored the life and legacy of the dodo at an event in collaboration between TORCH and the Museum of Natural History. The event was part of Being Human 2015, the UK's national festival of the humanities.

Episode Information

Series
TORCH | The Oxford Research Centre in the Humanities
People
multiple
Keywords
The Oxford Dodo: Culture at the Crossroads
Department: The Oxford Research Centre in the Humanities (TORCH)
Date Added: 07/12/2015
Duration: 01:13:31

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The Dodo in the Museum

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TORCH | The Oxford Research Centre in the Humanities
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Director of the Museum of Natural History, Paul Smith, gives a presentation at ‘The Oxford Dodo: Culture at the Crossroads’
Paul Smith (Director, Oxford University Museum of Natural History) gives a presentation at ‘The Oxford Dodo: Culture at the Crossroads’, an event celebrating the life and legacy of the famous creature in collaboration between the Museum of Natural History and TORCH.

Episode Information

Series
TORCH | The Oxford Research Centre in the Humanities
People
Paul Smith
Keywords
Paul Smith
‘The Oxford Dodo: Culture at the Crossroads
Department: The Oxford Research Centre in the Humanities (TORCH)
Date Added: 07/12/2015
Duration: 00:17:33

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The Dodo in Literature

Series
TORCH | The Oxford Research Centre in the Humanities
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Literary scholar Kirsten Shepherd-Barr’s presentation at ‘The Oxford Dodo: Culture at the Crossroads’
Kirsten Shepherd-Barr (Professor of English and Theatre Studies and Knowledge Exchange Champion for the Humanities) gives a presentation at ‘The Oxford Dodo: Culture at the Crossroads’, an event celebrating the life and legacy of the famous creature in collaboration between the Museum of Natural History and TORCH.

Episode Information

Series
TORCH | The Oxford Research Centre in the Humanities
People
Kirsten Shepherd-Barr
Keywords
The Dodo in Literature
Kirsten Shepherd-Barr
Department: The Oxford Research Centre in the Humanities (TORCH)
Date Added: 07/12/2015
Duration: 00:11:16

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The Dodo, Animal Icons and De-Extinction

Series
TORCH | The Oxford Research Centre in the Humanities
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Environmental researcher Paul Jepson’s presentation at ‘The Oxford Dodo: Culture at the Crossroads’
Paul Jepson (Researcher at the School of Geography and Environment and Course Director for the MSc in Biodiversity, Conservation and Management) gives a presentation at ‘The Oxford Dodo: Culture at the Crossroads’, an event celebrating the life and legacy of the famous creature in collaboration between the Museum of Natural History and TORCH.

Episode Information

Series
TORCH | The Oxford Research Centre in the Humanities
People
Paul Jepson
Keywords
The Oxford Dodo: Culture at the Crossroads
Paul Jepson
Department: The Oxford Research Centre in the Humanities (TORCH)
Date Added: 07/12/2015
Duration: 00:09:35

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The Dodo and Creativity

Series
TORCH | The Oxford Research Centre in the Humanities
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Author Jasper Fforde’s presentation at ‘The Oxford Dodo: Culture at the Crossroads’
Author Jasper Fforde’s presentation at ‘The Oxford Dodo: Culture at the Crossroads’

Episode Information

Series
TORCH | The Oxford Research Centre in the Humanities
People
Jasper Fforde
Keywords
The Oxford Dodo: Culture at the Crossroads
Jasper Fforde
Department: The Oxford Research Centre in the Humanities (TORCH)
Date Added: 04/12/2015
Duration: 00:09:26

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The Dodo and Exploration

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TORCH | The Oxford Research Centre in the Humanities
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Historian of Science Pietro Corsi’s presentation at ‘The Oxford Dodo: Culture at the Crossroads’
Historian of Science Pietro Corsi’s presentation at ‘The Oxford Dodo: Culture at the Crossroads’

Episode Information

Series
TORCH | The Oxford Research Centre in the Humanities
People
Pietro Corsi
Keywords
Pietro Corsi
oxford university
The Oxford Dodo: Culture at the Crossroads
Department: The Oxford Research Centre in the Humanities (TORCH)
Date Added: 04/12/2015
Duration: 00:13:01

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Director and CEO of the Oxford Playhouse, Louise Chantal (Lincoln, 1987)

Series
Alumni Voices
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Louise Chantal shares her love of the theatre and describes her involvement in Oxford’s cultural scene during her student days and running Oxford's famous Playhouse today.
She explains how producing plays dominated her years as an undergraduate when she studied BA English Language and Literature. Chantal mentions her sabbatical year as the first University Drama Officer, working with Oxford University and producer Cameron Mackintosh to support student drama at Oxford. A former president of the Oxford University Dramatic Society (OUDS), Chantal also speaks about organising the first Oxford student international tour and annual shows at the Edinburgh Festival.

In this podcast, Chantal continues by talking about her interest in international and new writing, and the work of the Oxford Playhouse, including recent successful productions, and its outreach work in deprived parts of Oxford. She praises student productions, and emphasises Oxford University’s support for the theatre.
Creative Commons Licence
Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK (BY-NC-SA): England & Wales; https://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Episode Information

Series
Alumni Voices
People
Louise Chantal
Keywords
drama
theatre
oxford playhouse
Oxford University Dramatic Society
Lincoln College
Department: Alumni Office
Date Added: 04/12/2015
Duration: 00:15:24

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Growing Black Holes over 12 Billion Years

Series
Oxford Physics Public Lectures
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The 2015 Hintze Biannual Lecture delivered by Professor Meg Urry

Using multi-wavelength surveys, we measure the growth of supermassive black holes at the centres of galaxies over the last 12 billion years. Most actively growing black holes are heavily obscured and not seen in large optical surveys; at the same time, the deep multi-wavelength surveys too little of the sky to find rare objects like luminous quasars. So completing the census of black hole growth requires a large-volume X-ray survey, to explore hidden, high luminosity and distant black holes. Theorists have suggested that mergers of gas-rich galaxies trigger Active Galactic Nuclei (AGN), whose radiation and outflows may quench star formation and strongly affect galaxy evolution. Our morphological analyses show that mergers probably do trigger luminous quasars but not the far more numerous moderate-luminosity AGN, which grow slowly through secular processes.

Episode Information

Series
Oxford Physics Public Lectures
People
Meg Urry
Keywords
astrophysics
hintze lecture
galaxies
black holes
luminous quasars
galactic nuclei
multi-wavelength surveys
Department: Department of Physics
Date Added: 04/12/2015
Duration:

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Transnational health insurances and the involvement of Congolese immigrants in their relatives' health from abroad

Series
International Migration Institute
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Looking at the impact of financial remittances on immigrant relatives’ access to healthcare via community-based health insurances
For many years, the migration and development literature has looked at the impact of financial remittances on immigrant relatives’ access to healthcare. More recent work on social remittances also examined the circulation of ideas and practices through migration and its impact on behaviour and consumption patterns in the home country. Surprisingly, however, migration scholars have neglected the interactions between remittances and local health systems in countries of origin. This is all the more surprising considering the abundant literature on health and development that has documented numerous non-governmental initiatives to improve access to care in the Global South in recent years. Among those initiatives, community-based health insurances (CBHI) have attracted significant attention. CBHI are voluntary risk-pooling schemes run by not-for-profit organisations; they collect fees among users at the local level and organise access to care with providers. While the growing literature on CBHI is shedding light on the potential of civil society organisations to replace or compensate for weak public health systems, it forgets that – in many parts of the world – access to the necessary capital to join those schemes is still very dependent on emigration of some family members. In other words, for many families worldwide, strategies to access healthcare have become transnational.

In this paper, I look at a specific form of CHBI that we call 'transnational health insurance' (THI). These insurance schemes are set up by immigrants in cooperation with a multitude of actors including, on the one hand, health insurance companies and development aid agencies in destination countries and, on the other hand, healthcare providers in origin countries. THIs offer health coverage to a selected number of non-migrant relatives in the home country based on a premium paid directly by immigrants to the insurance company in their country of residence. Analysing the creation and implementation of THIs in the Belgian–Congolese postcolonial context allow me to contribute to pressing debates on the nature of such remittances (Are THIs social or financial remittances, or both?), the drivers of immigrant transnational engagement (What are the motivations of receiving country institutions to get involved in such co-development practices? How do these initiatives reflect and/or transform receiving countries’ health systems? How beneficial are they for emigrants and their relatives?), and its impact on communities in origin countries (Do THIs support or hamper access to public health and the development of local initiatives in countries of origin? How sustainable are those strategies as migration becomes more permanent?)

The data used in this paper were collected during multi-sited fieldwork in Belgium and the DR Congo between January 2012 and August 2013 by the co-author of this paper, Olivier Lizin. Fieldwork included long-term participant observation in one THI in Brussels and Kinshasa (Solidarco) as well as 80 semi-structured interviews. Interviewees belonged to the following categories: Congolese immigrants in Belgium; insurance fund managers in Belgium; THI managers in DR Congo; beneficiaries in DR Congo; and development aid workers.
Creative Commons Licence
Creative Commons Attribution-Non-Commercial-Share Alike 2.0 UK (BY-NC-SA): England & Wales; https://creativecommons.org/licenses/by-nc-sa/2.0/uk/

Episode Information

Series
International Migration Institute
People
Jean-Michel Lafleur
Keywords
remittances
health insurance
congo
migration
community-based health insurance
Department: Oxford Department of International Development
Date Added: 03/12/2015
Duration: 00:33:21

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