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How do risk genes for psychosis operate?

Series
Nuffield Department of Clinical Neurosciences
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NCDN Seminar

Episode Information

Series
Nuffield Department of Clinical Neurosciences
People
Paul Harrison
Keywords
neuroscience
psychosis
Department: Nuffield Department of Clinical Neurosciences
Date Added: 04/03/2016
Duration: 00:46:20

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Engineering Defects in Diamond

Series
Oxford Physics Public Lectures
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Physics Colloquium 26th February 2016 delivered by Professor Mark Newton

Defects in diamond have great potential for use as quantum sensors and qubits1. Full exploitation of their optical and spin properties necessitates that we control their position, orientation and environment to optimise all of the desirable properties simultaneously. In this talk I will review our understanding of the production, in diamond, of intrinsic defect complexes by irradiation and annealing, and the capture of vacancies and self-interstitials by impurities. New Electron Paramagnetic Resonance (EPR) and optical spectroscopic data will be presented on the production of preferentially orientated defect complexes by electron irradiation and/or annealing whilst the sample is subjected to a large (up to 4 GPa) uniaxial stress. Near 100 % preferential orientation can be achieved for a number of different defects. Furthermore, recent results will be presented where uniaxial stress has been used in-situ to investigate both the reorientation and the spin relaxation properties of the single substitutional nitrogen centre (Ns0) in diamond. It will be shown that uniaxial stress can be used to influence spin diffusion and change spin-spin relaxation.

Episode Information

Series
Oxford Physics Public Lectures
People
Mark Newton
Keywords
Physics
physics colloquium
diamonds
quantum sensors
defects in diamond
qubits
Department: Department of Physics
Date Added: 04/03/2016
Duration:

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Optical Microscopy and Spectroscopy of Single Molecules and Single Plasmonic Gold Nanoparticles

Series
Oxford Physics Public Lectures
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Physics Colloquium 19th February 2016 delivered by Professor Michel Orrit

Optical signals provide unique insights into the dynamics of nano-objects and their surroundings. I shall present some of our experiments of the last few years.
i) At low temperatures, single molecules present very sharp lines which enable quantum optical experiments or nanoscale probing, for example of mechanical deformations (see Fig.1).
ii) Photothermal microscopy opens the study of non-fluorescent absorbers, down to single-molecule sensitivity. Combining this contrast with photoluminescence, we can measure the luminescence quantum yield on a single-particle basis. The high signal-to-noise ratio of this technique enables uses of individual gold nanoparticles for local plasmonic and chemical probing.
iii) Gold nanorods generate strong field enhancements near their tips. Matching the rods’ plasmon to a dye’s spectra, we observe enhancements in excess of thousand-fold for the fluorescence of single Crystal Violet molecules. This method generalizes single-molecule fluorescence to a broad range of weak emitters.
iv) We recently studied the dynamics of vapor nanobubbles created in the liquid surrounding a single immobilized gold nanosphere. We found that these nanobubbles form in an instable, explosive process before collapsing (see Fig.2). Nanobubbles can react to reflected sound waves such as those released in the explosion [5].

Episode Information

Series
Oxford Physics Public Lectures
People
Michel Orrit
Keywords
Physics
phyysics colloquium
spectroscopy of single molecules
gold nanoparticles
photoluminescence
nanobubbles
Department: Department of Physics
Date Added: 04/03/2016
Duration:

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Bible Translation in Germany

Series
Reformation 2017
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From Old High German via Martin Luther to Bibel in gerechter Sprache. A whistle stop tour of German Bible translation
The joined presentation on Bible translation as 'Prism of Theology' was part of the Oxford Comparative Criticism and Translation annual conference, 'Prismatic Translation', on 1 -3 October 2015, St Anne's College, Oxford. Speakers: Howard Jones, Henrike Lähnemann, Daniel Lloyd. 1300 years of German Bible translation in one hour!
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
Reformation 2017
People
Henrike Lähnemann
Howard Jones
Daniel Lloyd
Keywords
bible
german
translation
old high german
martin luther
bibel in gerechter sprache
torch network
Department: Faculty of Medieval and Modern Languages
Date Added: 03/03/2016
Duration: 01:07:47

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Reformation 2017

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Reformation 2017
The 'Reformation 2017‘ series highlights some of the events connected with the activities around the 500th anniversary of the publication of Martin Luther’s 95 theses in 1517. A full documentation of ongoing projects can be found at http://blogs.bodleian.ox.ac.uk/taylor-reformation/

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Cross border migration as the transnational social question

Series
International Migration Institute
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Thomas Faist shows how the 'transnational social question' relates to political conflicts around the inequalities connected to cross-border migration in immigration and emigration contexts
On a world scale, distress and social instability are reminiscent of the social inequalities that obtained in a large part of nineteenth-century Europe. At that time the 'social question' was the central subject of extremely volatile political conflicts between the ruling classes and working-class movements. Are we now on the verge of a new social conflict, this time on a cross-border scale, characterised by manifold boundaries – such as those between capital and labour, North and South, developed and underdeveloped or developing countries?

Looking at cross-border migration, this lecture exemplifies crucial mechanisms resulting in the reproduction of old inequalities and the emergence of new inequalities. The lecture shows how the 'transnational social question' relates to political conflicts around the inequalities connected to cross-border migration in immigration and emigration contexts. Among the processes relevant for the understanding of the transnational social question are marketisation, securitisation, and developmentalism.

Episode Information

Series
International Migration Institute
People
Thomas Faist
Keywords
border
inequality
Transnational
social protection
migration
Department: Oxford Department of International Development
Date Added: 03/03/2016
Duration: 00:41:32

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The Business and Practice of Journalism seminar series - How Buzzfeed Covers News

Series
Reuters Institute for the Study of Journalism
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Jim Waterson, Deputy Editor, Buzzfeed UK gives a talk for the Business and Practice of Journalism seminar series. Introduction by Richard Sambrook. Videos used in the seminar, so sound may be slightly distorted.
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
Reuters Institute for the Study of Journalism
People
Jim Waterson
Keywords
journalism
Buzzfeed
Department: Department of Politics and International Relations (DPIR)
Date Added: 03/03/2016
Duration: 00:40:42

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Fundamental constants and biology

Series
The Physics of Fine-Tuning
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George Ellis of the University of Cape Town shows how we can use a space of possibilities to assess the fragility of life. This talk was part of the Consolidation of Fine-Tuning Project's first workshop, "Life in the Universe", on November 3, 2015.

Episode Information

Series
The Physics of Fine-Tuning
People
George Ellis
Keywords
fine-tuning
Physics
science
cosmology
fundamental constants
multiverse
life
laws of physics
philosophy of science
Department: Department of Physics
Date Added: 02/03/2016
Duration: 00:40:18

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1594: Shakespeare's most important year

Series
The Bodleian Libraries (BODcasts)
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In the summer of 1594 William Shakespeare decided to invest around 50 Pounds to become a shareholder in a newly formed acting company: Lord Chamberlain's Men. This lecture examines the consequences of this decision, unique in English theatrical history.
By examining the early modern theatrical marketplace and the artistic development of Shakespeare's writing before and after this moment, it is hoped that this talk shows why 1594 was, by some measure, Shakespeare's most important year.

Episode Information

Series
The Bodleian Libraries (BODcasts)
People
Bart van Es
Keywords
shakespeare
literature
the Lord Chamberlain's Men
theatre
Department: Bodleian Libraries
Date Added: 02/03/2016
Duration: 00:39:20

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Are the Humanities More Digital than the Sciences?

Series
TORCH | The Oxford Research Centre in the Humanities
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A panel discussion with Howard Hotson, Andrew Prescott, Dave De Roure and Heather Viles
Are the Humanities More Digital than the Sciences? A panel discussion with Howard Hotson, Andrew Prescott, Dave De Roure and Heather Viles. Part of the Humanities and the Digital Age TORCH 2016 Headline Series. The presumption is often that the relationship between the humanities and sciences will be one-way, and that it will be the humanities learning from sciences. But what can sciences learn from the way that the humanities are using digital output for their research?

Episode Information

Series
TORCH | The Oxford Research Centre in the Humanities
People
Howard Hotson
Andrew Prescott
Dave De Roure
Heather Viles
Kathryn Eccles
Keywords
torch
humanities
digital-age
digital
science
Department: The Oxford Research Centre in the Humanities (TORCH)
Date Added: 02/03/2016
Duration: 00:48:04

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