Ron Johnston
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View article: The two-photon exchange experiment at DESY
The two-photon exchange experiment at DESY Open
We propose a new measurement of the ratio of positron-proton to electron-proton elastic scattering at DESY. The purpose is to determine the contributions beyond single-photon exchange, which are essential for the Quantum Electrodynamic (QE…
View article: Beam Spin Asymmetry Measurements of Deeply Virtual $π^0$ Production with CLAS12
Beam Spin Asymmetry Measurements of Deeply Virtual $π^0$ Production with CLAS12 Open
The new experimental measurements of beam spin asymmetry were performed for the deeply virtual exclusive $π^0$ production in a wide kinematic region with the photon virtualities $Q^2$ up to 8 GeV$^2$ and the Bjorken scaling variable $x_B$ …
View article: Searching for New Physics with DarkLight at the ARIEL Electron-Linac
Searching for New Physics with DarkLight at the ARIEL Electron-Linac Open
The search for a dark photon holds considerable interest in the physics community. Such a force carrier would begin to illuminate the dark sector. Many experiments have searched for such a particle, but so far it has proven elusive. In rec…
View article: The spatial variable: Professor Ron Johnston’s inaugural lecture (University of Sheffield, 1975)
The spatial variable: Professor Ron Johnston’s inaugural lecture (University of Sheffield, 1975) Open
This paper presents a recently transcribed copy of Ron Johnston's inaugural lecture that he gave in 1975 following his appointment as Professor of Geography at the University of Sheffield. Entitled 'The Spatial Variable', it is published f…
View article: Barriers to cover crop adoption: Evidence from parallel surveys in Maryland and Ohio
Barriers to cover crop adoption: Evidence from parallel surveys in Maryland and Ohio Open
This paper evaluates perceived barriers to cover crop adoption, using data from an original survey of farmers in two US states. Barriers are compared in a high adoption state (Maryland) and a more typical adoption state (Ohio).Although 25.…
View article: Notes
Notes Open
Despite the imperative for change in a world of persistent inequality, racism, oppression and violence, difficulties arise once we try to bring about a transformation. As scholars, students and activists, we may want to change the world, b…
View article: List of tables
List of tables Open
Despite the imperative for change in a world of persistent inequality, racism, oppression and violence, difficulties arise once we try to bring about a transformation. As scholars, students and activists, we may want to change the world, b…
View article: Index
Index Open
Despite the imperative for change in a world of persistent inequality, racism, oppression and violence, difficulties arise once we try to bring about a transformation. As scholars, students and activists, we may want to change the world, b…
View article: List of figures
List of figures Open
Despite the imperative for change in a world of persistent inequality, racism, oppression and violence, difficulties arise once we try to bring about a transformation. As scholars, students and activists, we may want to change the world, b…
View article: Multidimensional, high precision measurements of beam single spin\n asymmetries in semi-inclusive $\\pi^{+}$ electroproduction off protons in the\n valence region
Multidimensional, high precision measurements of beam single spin\n asymmetries in semi-inclusive $\\pi^{+}$ electroproduction off protons in the\n valence region Open
High precision measurements of the polarized electron beam-spin asymmetry in\nsemi-inclusive deep inelastic scattering (SIDIS) from the proton have been\nperformed using a 10.6~GeV incident electron beam and the CLAS12 spectrometer\nat Jef…
View article: Residential structure and urban morphology : aspects of the geography of the Melbourne metropolitan area
Residential structure and urban morphology : aspects of the geography of the Melbourne metropolitan area Open
This thesis was scanned from the print manuscript for digital preservation and is copyright the author. Researchers can access this thesis by asking their local university, institution or public library to make a request on their behalf. M…
View article: Measurement of Møller scattering at 2.5 MeV
Measurement of Møller scattering at 2.5 MeV Open
Møller scattering is one of the most fundamental processes in QED, and a variety of modern experiments require its knowledge to high precision. A recent calculation considered the radiative process at low energy, where the electron mass ca…
View article: When cultural strength means political weakness: Romania’s marriage referendum and the paradox of conservative mobilisation
When cultural strength means political weakness: Romania’s marriage referendum and the paradox of conservative mobilisation Open
Held on 6–7 October 2018, the Romanian referendum on the topic of gay marriage was the fourth referendum of this kind organised in East Central Europe over a five-year period. Because turnout was low in all of them and demands explanation,…
View article: Quantitative geography III: Future challenges and challenging futures
Quantitative geography III: Future challenges and challenging futures Open
In the previous two reports in this series, we discussed the history and current status of quantitative geography. In this final report, we focus on the future. We argue that quantitative geographers are most helpful when we can simplify d…
View article: History of the Central Utah Project: a Federal perspective
History of the Central Utah Project: a Federal perspective Open
Presented at the 2001 USCID water management conference, Transbasin water transfers on June 27-30, 2001 in Denver, Colorado.
View article: Testing the wisdom of the crowds argument: local opinion in the 43 ‘Red Wall’ constituencies that Labour lost
Testing the wisdom of the crowds argument: local opinion in the 43 ‘Red Wall’ constituencies that Labour lost Open
As a general election approaches, parties want to know not only how many seats they will win but also which ones. Some argue that the best source of such information is the voters in the individual seats because they are more aware of tren…
View article: Quantitative Geography III: Future Challenges & Challenging Futures
Quantitative Geography III: Future Challenges & Challenging Futures Open
In the previous two parts of this series, we discussed the history and current status of quantitative geography. In this final part, we focus on the future. We argue that quantitative geographers are most helpful when we can simplify diffi…
View article: Who follows the leader? Leadership heuristics and valence voting at the UK’s 2016 Brexit referendum
Who follows the leader? Leadership heuristics and valence voting at the UK’s 2016 Brexit referendum Open
Recent accounts of British voting behaviour emphasise the importance of voters’ valence judgements on deciding which party to support: significant numbers of voters do not rely on their membership of particular socio-economic groups or ide…
View article: Repealing the Fixed-Term Parliaments Act is a tidying-up exercise, not a major constitutional change
Repealing the Fixed-Term Parliaments Act is a tidying-up exercise, not a major constitutional change Open
The 2011 Fixed-Term Parliaments Act was the most successful of the constitutional reform measures championed by the Liberal Democrats during their period in coalition with the Conservatives. Nine years after the Act was passed, a new bill …
View article: Book review: footsoldiers: political party membership in the 21st century
Book review: footsoldiers: political party membership in the 21st century Open
Although tens of millions of adults turn out to vote at UK general elections having decided which party's policies and leaders they prefer, very few of them join those parties, let alone actively participate in and promote them. Who are th…