141 research outputs found
Resonant Spaces: Electroacoustic Music and Ritual: A commentary on my recent music.
No full textThe following portfolio and commentary concerns music and performance works created between 2008 and 2012, and an exposition of the research, ideas, aesthetics and techniques that connect
these works. I will discuss in detail the role that archaeoacoustics has played in my composition of fixed and mixed media works and how it has influenced me aesthetically in my approach to live performance. I will also explain in each instance any actual data used from various research sources, and my metaphorical interpretation of various archaeological sites and acoustic phenomena. Similarly, I will discuss the concepts of shamanism, ritual and transcendence that have influenced me, and how these concepts are expressed in my instrumental works, fixed media and live performance pieces
The Political Economy of Textbook Writing: Paul Samuelson and the making of the first ten Editions of Economics (1945-1976)
No full textOver the past two decades, numerous contributions to the history of economics have tried to assess Paul Samuelson’s political positioning by tracing it in the subsequent editions of his famous textbook Economics. This literature, however, has provided no consensus about the location of Samuelson’s political ideas. While some authors believe that Samuelson has always had inclinations toward interventionism, others conclude that he more often acted as a pro-business advocate. The purpose of this paper is not to argue for one of these two interpretations but to depict the making of Economics itself as a political process. By ‘political’ it is not meant the conduct of party politics but the many political elements that a textbook author has to take into account if he wants to be published and favorably received. I argue that the “middle of the road” stance that Samuelson adopted in the book was consciously constructed by the MIT economist, with the help of his home institution and his publishing company, McGraw-Hill, to ensure both academic freedom and the success of the book. The reason for which the stance developed is related to pre-McCarthyist right-wing criticisms of the textbook and how Samuelson and the MIT department had to endure the pressures from members of the Corporation (MIT’s Board of Trustees), who tried to prevent the publication of the textbook and threatened Samuelson’s tenure at MIT as soon as 1947 – when early manuscripts were circulated. As a result, it was decided in accordance with both the Corporation and McGraw-Hill that the Readings volume would be published to balance conflicting ideas about state intervention. Following these early criticisms, the making of the subsequent editions relied on a network of instructors and referees all over the US in order to make it as successful and consensual as possible. This seemed to work quite well in the 1950s and for a good portion of the 1960s, until Economics became victim of its own success and was seen, in an ironical twist of fate, as a right wing text by younger, radical economists. From now on, Samuelson will try to have his book sent as often as possible to the radicals for referring process, with mixed results. Eventually, the book became criticized from both its left and its right.Paul Samuelson, Economics, Textbook, Politics, Economic Education
Antisocial Cognition as a Mediator of the Peer Influence Effect and Peer Selection Effect in Antisocial Adolescents
No full textThe peer influence and peer selection effects are two widely replicated findings in the criminological literature that refer to the predictive relationship between antisocial behaviour and delinquent peer association as well as between delinquent peer association and antisocial behaviour, respectively. Research suggests that antisocial cognition might constitute a causal mechanism underlying part of these effects. This study investigated the extent that the peer influence and peer selection effects are mediated by one key aspect of antisocial cognition—beliefs and attitudes supporting peer conflict. This study examined whether beliefs and attitudes supporting peer conflict mediated the relationship between delinquent peer association and volume of self-reported antisocial behaviour and vice-versa, across a 1-year follow-up period, in 683 (433 male, 250 female) British adolescents (mean age: 13.8 years) with a history of serious antisocial behaviour. Participants completed measures at baseline and 6, 12 and 18 months thereafter. Findings indicated that beliefs and attitudes supporting peer conflict partially mediated the peer influence and peer selection effects, explaining a substantial proportion of the total effect in the peer influence (i.e., 26%) and peer selection (i.e., 17%) models. These results suggest that beliefs and attitudes supporting peer conflict could explain part of the mechanism underlying the peer influence and peer selection effects in adolescents with a history of serious antisocial behaviour
A Late Cretaceous pole for the Pacific plate: implications for apparent and true polar wander and the drift of hotspots (Dataset)
No full textPaleomagnetic evidence for motion of the Hawaiian hotspot during formation of the Emperor seamounts
No full textIn search of high‐fidelity geomagnetic paleointensities: A comparison of single plagioclase crystal and whole rock Thellier‐Thellier analyses
No full textPrimary pseudo-single and single-domain magnetite inclusions in quartzite cobbles of the Jack Hills (Western Australia): implications for the Hadean geodynamo
No full textZircons of the Jack Hills of Western Australia are the oldest known terrestrial minerals and as such they hold potential for recording Earth's oldest geomagnetic field. To preserve records of the most ancient magnetic field, the zircon host rocks must not have been heated to temperatures that resulted in a complete remagnetization. To test this hypothesis, magnetic minerals having very high unblocking temperatures must be present in the host rocks and capable of retaining magnetizations on billion-year timescales. Here, we use scanning electron microscopy analyses and transmission electron microscopy characterization of focused ion beam lift outs to document for the first time through direct imaging the presence of pseudosingle (PSD) to single-domain (SD) magnetite inclusions in Jack Hills quartzite cobbles. We further use focused ion milling to document the 3-D detrital morphology of an inclusion and micromagnetic modelling that suggest a single vortex magnetization. These results, together with recent advances in our understanding of the blocking temperatures and relaxation times of PSD grains, indicate that the Jack Hills host rocks contain magnetic inclusions capable of recording magnetizations as old as the age of the conglomerate (ca. 3 billion years old). These new results confirm that magnetic directions observed retained at high unblocking temperatures (500-580 °C) in these rocks identified in two independent laboratory analyses are carried by PSD/SD magnetite. The lack of an overprint direction recorded at these high temperatures excludes pervasive thermal and/or chemical remagnetization and indicates that the oldest zircons from the Jack Hills are potential recorders of the Hadean geodynamo
LANDSAT and environmental impact in the Paraiba Valley of Sao Paulo
No full textThere are no author-identified significant results in this report
Magnetostratigraphy of the Late Cretaceous to Eocene Sverdrup Basin: Implications for heterochroneity, deformation, and rotations in the Canadian Arctic archipelago
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