27,664 research outputs found
Snapshots of Empire Games Journeys: The Vernacular Photography of Peter Heatly and the 1950 Scotland Team
No full textSir Peter Heatly is a former Scottish diver who competed in three British Empire Games and one Olympic Games. On all his journeys to major competitions, he took personal photographs and kept published material and ephemera related to his trips, which were subsequently neatly stored in albums and scrapbooks, and, until 2018, were kept by his family when they deposited the personal archive to the University of Stirling. The vernacular photography of Heatly provides personal evidence of sport mega-events from the mid-twentieth century from an athlete’s perspective. It raises questions about the value of vernacular photography, family albums, and scrapbooks for interpreting and understanding the cultural historiography of sport and how much visual culture helps make sense of the cultures of international sport during the post-war period. The article provides some critical and analytical approaches to the use of such material, questioning the motivations for their original production and archiving, as well as recognizing such photographs are not simple documents of the past with unproblematic meanings but are contingent on specific “networks of authority” and open to contested meanings
Heatly, Sir Peter (1924–2015)
No full textThis is an Oxford Dictionary of National Biography entry for Sir Peter Heatly who was a Scottish diver, engineer, and sports administrator
Author Peter FitzSimons speaking at the National Library of Australia, Canberra, 13 November 2012 /
No full textTitle from acquisitions documentation.; Part of the collection: Portraits of author Peter FitzSimons speaking at the National Library of Australia, Canberra, 13 November 2012.; Acquired in digital format; access copy available online.; Mode of access: Online.; Photographed by a staff member of the National Library of Australia
Moral Good, the Beatific Vision, and God’s Kingdom Writings by Germain Grisez and Peter Ryan, S.J.. Edited by Peter J. Weigel
No full textFor close to half a century, the work of Germain Grisez has been highly influential, and his writings continue to receive considerable attention from philosophers and theologians of diverse viewpoints. His co-author for this work is the professor and noted moral theologian Fr. Peter Ryan, S.J., currently the executive director of the Secretariat of Doctrine and Canonical Affairs of the United States Conference of Catholic Bishops (USCCB). These two eminent scholars explore fundamental questions about Christian eschatology, moral theory, the purpose of human life, and the promise of human fulfilment. The authors examine Christian teaching on the final destiny of persons, investigating the meaning of God's kingdom, the hope of the beatific vision, and the centrality of moral goodness and divine grace in one's final end. This work is an ideal source for students, scholars, ministers and lay persons interested in basic questions of Christian theology, the philosophy of religion, ethical theory, and Catholic doctrin
Murder on the mountain: author talk with Peter J. Wosh
No full textAuthor talk by Peter J. Wosh on May 5th, 2022, on his book, "Murder on the Mountain: crime, passion, and punishment in gilded age New Jersey.
Workshop report. Linear-Scaling Ab Initio Calculations: Applications and Future Directions
No full textThe study of properties and of processes in materials, frequently hinges upon understanding phenomena which originate at the atomic level. In such cases the accurate description of the interactions between large numbers of atoms is critical and in turn requires the accurate description of the electrons which play a crucial role in the bonding of atoms into molecules, surfaces and solids. This can only be achieved by solving the equations of quantum mechanics. These
equations are too complicated to solve exactly; however their solutions can be approximated by computational techniques. The most accurate ? but also most computationally demanding ? are the “ab initio” techniques which do not use any empirical adjustable parameters. Amongst them, the Density Functional Theory (DFT) formulation of quantum mechanics stands out as an excellent compromise between accuracy and computational efficiency. However, the applicability of ab initio techniques is severely limited by poor scaling: the computational effort needed to perform an ab initio calculation increases with (at least) the third power of the number of atoms, N. This cubic-scaling bottleneck limits the number of atoms we can study to a few hundred at most, even on parallel supercomputers. To overcome this length-scale limitation, a number of researchers worldwide have been pioneering the development of a novel class of ab initio methods with linear-scaling or “Order N” (O(N)) computational cost which nevertheless retain the same high level of accuracy as the conventional approaches. While physically motivated, such methods have proved particularly hard to develop as they introduce highly non-trivial localisation constraints. Nevertheless, many major obstacles have been overcome and a number of O(N)
methods (SIESTA, CONQUEST, ONETEP, etc.) for ground state DFT calculations on systems with a gap (e.g. molecules, semiconductors and insulators) are now available and have reached a state of maturity that allows them to be used to study ”real” materials. The particular focus of this workshop is therefore to look forward to what can be achieved in the next few years. Our aim is twofold: (1) As O(N) methods are currently extending the applicability of DFT calculations
to problems involving biomolecules and nanostructures they are leading to completely new levels of understanding of these systems. This CECAM meeting will give us the opportunity to make an appraisal of such large-scale simulations and their potential to connect more directly to experiments. (2) We also want to examine the options for extending linear-scaling to problems that cannot be treated by ground-state DFT but require other, more complex approaches. These include methods for treating metallic systems, excited states and wavefunction-based theories for including electronic correlation. Finding ways to transform these methods to linear-scaling
cost, and hence extent their applicability to the nano-scale, is the next big challenge that the community of developers of large-scale electronic structure methods is beginning to face. We
hope that this workshop will stimulate these major new O(N) methodological developments by bringing together the leading groups in the development of O(N) DFT methods with the leading
groups in the development of metal and excited-state or wavefunction-based methods. Strong emphasis during the workshop will be given to discussion in order to promote the exchange
of ideas between different communities (Physics, Chemistry, Materials Science, Biochemistry) which are all interested in large-scale applications with ab initio accuracy but are approaching
them from different perspectives
Lunchtime Talk with Author and Attorney Peter Godwin
No full textAuthor and attorney Peter Godwin gave a lunchtime talk about the topics discussed in his book, The Fear, which focuses on the human rights situation in Zimbabwe under the rule of Robert Mugabe
Marriage record of Simpson, Samuel T. and Haynes, Lizzie
No full textMarriage license for Samuel T. Simpson and Lizzie Haynes. Peter Brown was the officiant
Marriage record of Simpson, Jeremiah and Haynes, Mable
No full textMarriage license for Jeremiah Simpson and Mable Haynes. Peter Brown was the officiant
Achieving plane wave accuracy in linear-scaling density functional theory applied to periodic systems: a case study on crystalline silicon
No full textLinear-scaling methods for density functional theory promise to revolutionize the scope and scale of
first-principles quantum mechanical calculations. Crystalline silicon has been the system of choice
for exploratory tests of such methods in the literature, yet attempts at quantitative comparisons
under linear-scaling conditions with traditional methods or experimental results have not been
forthcoming. A detailed study using the ONETEP code is reported here, demonstrating for the first
time that plane wave accuracy can be achieved in linear-scaling calculations on periodic systems
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