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A statistically complete survey for arc-like features in images of distant rich clusters of galaxies (1991)
Journal Article
Smail, I., Ellis, R., Fitchett, M., Nørgaard-Nielsen, H., Hansen, L., & Jørgensen, H. (1991). A statistically complete survey for arc-like features in images of distant rich clusters of galaxies. Monthly Notices of the Royal Astronomical Society, 252(1), 19-29. https://doi.org/10.1093/mnras/252.1.19

Using data from an earlier search for supernovae in distant clusters, we have constructed a homogeneous set of V images for 19 rich clusters with mean redshift z¯¯¯=0.32z¯=0.32. By considering the images above a fixed surface brightness limit, the da... Read More about A statistically complete survey for arc-like features in images of distant rich clusters of galaxies.

Social Affordances and Interaction I: Introduction (1991)
Journal Article
Valenti, S. S., & Good, J. M. M. (1991). Social Affordances and Interaction I: Introduction. Ecological Psychology, 3(2), 77-98. https://doi.org/10.1207/s15326969eco0302_2

Recent extensions of the affordance concept to fundamental problems in the study of social knowing and interaction were the focus of one of the symposia at the Fifth International Conference on Event Perception and Action, at Miami University, Oxford... Read More about Social Affordances and Interaction I: Introduction.

The Nash solution and relevant expansions (1991)
Journal Article
Anbarci, N. (1991). The Nash solution and relevant expansions. Economics Letters, 36(2), 137-140. https://doi.org/10.1016/0165-1765%2891%2990178-n

In this paper we propose a new axiom, Relevant Balanced Expansion Monotonicity (RBEM), to replace Nash's original Independence of Irrelevant Alternatives (IIA) axiom. Using the RBEM axiom and the other three original axioms suggested by Nash we provi... Read More about The Nash solution and relevant expansions.

The ‘Conceptual Change In Science’ project. (1991)
Journal Article
Twigger, D., Byard, M., Draper, S., Driver, R., Hartley, R., Hennessy, S., …Scanlon, E. (1991). The ‘Conceptual Change In Science’ project. Journal of Computer Assisted Learning, 7(2), 144-155. https://doi.org/10.1111/j.1365-2729.1991.tb00238.x

This paper outlines the work of the Conceptual Change in Science project, funded as part of the ESRC InTER programme. The aims of this research project are to clarify and describe the process of change in learners' conceptual understandings of natura... Read More about The ‘Conceptual Change In Science’ project..

Theoretical differential cross sections for proton-helium scattering at intermediate energies. (1991)
Journal Article
Slim, H., Heck, E., Bransden, B., & Flower, D. (1991). Theoretical differential cross sections for proton-helium scattering at intermediate energies. Journal of Physics B: Atomic, Molecular and Optical Physics, 24(9), 2353-2358. https://doi.org/10.1088/0953-4075/24/9/014

Differential cross sections for collisions between protons and helium atoms have been calculated in the range of impact energies from 25-100 keV. The eikonal formula for the differential cross section was used, in conjunction with semiclassical trans... Read More about Theoretical differential cross sections for proton-helium scattering at intermediate energies..

STRUCTURAL CHARACTERIZATION OF POLYANILINE FREE STANDING FILMS (1991)
Journal Article
Monkman, A., & Adams, P. (1991). STRUCTURAL CHARACTERIZATION OF POLYANILINE FREE STANDING FILMS. Synthetic Metals, 41(3), 891-896

Free standing films of polyaniline in its emeraldine base form have been cast from N-methyl-2-pyrrolidone solution. These films have been characterised via FTIR and solid state C-13 NMR to unambiguously reveal the chain structure of the emeraldine. T... Read More about STRUCTURAL CHARACTERIZATION OF POLYANILINE FREE STANDING FILMS.

X-RAY PHOTOELECTRON SPECTROSCOPIC INVESTIGATIONS OF THE CHAIN STRUCTURE AND DOPING MECHANISMS IN POLYANILINE (1991)
Journal Article
Monkman, A., Stevens, G., & Bloor, D. (1991). X-RAY PHOTOELECTRON SPECTROSCOPIC INVESTIGATIONS OF THE CHAIN STRUCTURE AND DOPING MECHANISMS IN POLYANILINE. Journal of Physics D: Applied Physics, 24(5), 738-749

X-ray photoelectron spectroscopy has been used to investigate the atomic species, and their bonding, within the conductive polymer polyaniline (PANi). PANi was grown electrochemically using HCl as the electrolyte ion and all three of PANi's oxidation... Read More about X-RAY PHOTOELECTRON SPECTROSCOPIC INVESTIGATIONS OF THE CHAIN STRUCTURE AND DOPING MECHANISMS IN POLYANILINE.