1,990 research outputs found

    Spectroscopy and Dynamics of Metal Clusters

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    A range of spectroscopic and computational techniques have been applied to the study of three metal cluster systems: vanadium monoxide, the Au2 molecule, and RhnN2O+ clusters. A new instrument has been built for spectroscopy experiments on metal clusters, consisting of a laser ablation cluster source and a linear time-of-flight mass spectrometer. The instrument was characterised using nitric oxide spectroscopy and applied to the electronic REMPI spectrum of vanadium oxide in the visible region. The rotational constants and band origins of several known states have been determined, and the observation of a new spin-forbidden transition has been used to connect the energies of the quartet and doublet manifolds of VO. A new 3 2Pi state was also observed and characterised. The photoionisation and photodissociation of Au2 were then studied at 157 nm, and between 35500 and 37200 cm-1 with another new instrument recently constructed in the group. Excited and ground state Au photofragments were produced in both spectral regions, and have been detected and assigned using velocity map imaging. The 157 nm photodissociation produced gold atom products in the seven highest-energy accessible channels in a single-photon dissociation process. The complex near-UV spectrum involved two-photon excitation to two 0g+ excited states close to their dissociation thresholds, followed by predissociation to thirteen different Au product channels. The branching ratios for dissociation into each of these channels varied across the spectrum as different dissociation limits and curve crossings occurred. The mid- and far-infrared multiple-photon dissociation spectra of RhnN2O+ clusters have been recorded using the argon-tagging action spectroscopy technique and free electron laser radiation. The results have been compared to density functional theory calculations to deduce the nature of the binding and the likely low-lying electronic and geometrical structures. The N2O was found to be molecularly adsorbed on the surface of the cluster but, upon infrared heating of the complex via the N2O vibrational modes, was observed to undergo a reaction, producing N2 and cluster oxides RhnO+. The reaction is believed to be thermal and mode-independent, but the efficiency of the surface reaction does vary with cluster size, with the n=5 cluster showing no detectable reaction. </p

    H. G. Liddel and R. Scott. A Greek-English Lexicon. A new edition revised and augmented throughout by Henry Stuart Jones, with the assistance of Roderick Mackenzie, and with cooperation of many Scholars

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    Dalmeyda Georges. H. G. Liddel and R. Scott. A Greek-English Lexicon. A new edition revised and augmented throughout by Henry Stuart Jones, with the assistance of Roderick Mackenzie, and with cooperation of many Scholars. In: Revue des Études Grecques, tome 38, fascicule 175-176, Avril-juin 1925. pp. 286-287

    A Greek Lexikon, compiled by H. G. Liddell and R. Scott, a new edition revised and augmented throughout by H. Stuart Jones with the assistance of Roderick Mackenzie and with the cooperation of many scholars. Part Ι, Α -'Αποβαίνω, 1925

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    Puech Aimé. A Greek Lexikon, compiled by H. G. Liddell and R. Scott, a new edition revised and augmented throughout by H. Stuart Jones with the assistance of Roderick Mackenzie and with the cooperation of many scholars. Part Ι, Α -'Αποβαίνω, 1925. In: Revue des Études Anciennes. Tome 27, 1925, n°3. pp. 247-248

    Community Response to Forestry Transition in Rural Canada: Analysis of Media and Census Data for Six Case Study Communities in New Brunswick and British Columbia

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    The forest economy is in transition across Canada. Faced with high dollar values, increasing competition within the global market, high input costs for energy, labour and fibre, and growing expectations for environmental performance, the forest sector is undergoing significant economic transitions as companies across the country cut costs, close mills and shed jobs. This report contributes to our understanding of community response to mill closure with a detailed description of six case study communities during a period of forest industry mill closures. Three communities are in British Columbia (Mackenzie, Quesnel and Fort St. James) and three communities are in New Brunswick (Dalhousie, Nackawic and Mirimachi). Empirical information is derived from national and local media reports as well as recent data from the Census of Canada. Key thematic areas include resilience, economic diversification, the nature of mill closure, union involvement, government involvement and concerns over government policy changes such as appurtenancy.media analysis, rural sociology, community development, rural development, social change, Community/Rural/Urban Development, R52, R58, Q33,

    Redemption in the work of Francis Stuart

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    The idea of redemption is central to an understanding of the work of Francis Stuart. Through an examination of its development and expression, it is possible to demonstrate the integrity of his work and its distinctive qualities. Such a demonstration is necessary because Stuart's writing has been subjected to comparatively little scholarly inquiry, although reviews of his work, especially that produced since 1949, suggest that it is impressive and important. First, a general background to Stuart's work, a discussion of the special problems associated with reading it, and a summary of his corpus is provided. This indicates that the idea of redemption is important to his earliest writing. The state of redemption is shown to be a necessary apotheosis for Stuart's outcast heroes; it involves spiritual suffering through which may be found a sense of reintegration and a higher reality. This is expressed through interrelated themes such as those of gambler, artist and ordinary man; mystic and criminal; sacred and profane love; and spirituality and the mundane. The nature of the redemptive experience is further elaborated by distinctive, complex motifs, especially the hare, the ark and the woman-Christ. Their recurrence provides an important element in the unity of Stuart's work. Because Stuart's idea of the outcast raises important biographical questions, an examination of the relationship between Stuart's life and his work is made. Finally, the way in which the idea of redemption exists in the language structures of Stuart's novels is examined, with especial reference to his most recent work, The High Consistory. The thesis shows that the development of the these of redemption demonstrates the integrity of Stuart's work

    John Stuart Mill’s projected science of society: 1827-1848

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    The purpose of the thesis is to examine John Stuart Mill’s political thought from about 1827 to 1848 as an exercise in intellectual history. It focuses, first, on Mill’s view, formulated by the late 1830s, that contemporary society was ‘civilized’, and second, on his project of a science of society, which he aspired to develop in the late 1830s and early 1840s. By the late 1830s, Mill came to the view that his contemporary society was a ‘commercial society or civilization’, dominated by the middle, commercial class. The first part of my thesis, constituted by Chapters 2-4, discusses the way in which Mill formed his notion of civilization, and what he meant by the term ‘civilization’. Mill paid attention to the implications of the rise of the middle class, and regarded such phenomena of contemporary society as the corruption of the commercial spirit and excessive social conformity as an inevitable consequence of the rise of the middle class. The second part of the thesis, constituted by Chapters 5-9, examines Mill’s projected science of society. In the late 1830s and early 1840s, Mill attempted to develop a new science of society whose subject-matter was the nature and prospects of commercial, civilized society. This aspiration culminated in A System of Logic, published in 1843. In examining Mill’s projected science, I pay particular attention to the fact that he conceived new sciences of history and of the formation of character, both of which were indispensable in his project, although he failed to give a complete account of these sciences. My thesis shows that the implications of his interest both in history and in the formation of character are more significant than Mill scholars have assumed

    Condensed-phase applications of cavity-based spectroscopic techniques

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    This thesis describes the development and application of condensed-phase cavity-based spectroscopic techniques—namely cavity ring-down spectroscopy (CRDS); cavity enhanced absorption spectroscopy (CEAS); broadband cavity enhanced absorption spectroscopy (BBCEAS) and evanescent wave (EW) variants of all three. The recently-developed cavity technique of EW-broadband cavity enhanced absorption spectroscopy (EW-BBCEAS) has been used—in combination with a supercontinuum source (SC) and a sensitive, fast readout CCD detector—to record of the full visible spectrum (400–700 nm) of a silica-liquid interfacial layer (with an effective thickness ca. 1 µm), at rapid acquisition rates (> 600 Hz) that are sufficient to follow fast kinetics in the condensed phase, in real time. The sensitivity achieved (Amin= 3.9 x 10-5) is comparable with previous EW-CRDS and EW-CEAS studies, but the spectral region accessed in this broadband variant is much larger. The study of liquid|air interfaces using EW cavity-based techniques is also illustrated for the first time. The first application of BBCEAS to the analysis of microfluidic samples, flowing through a microfluidic chip, is illustrated. Proof-of-principle experiments are presented, demonstrating the technique’s ability to provide full visible broadband spectral measurements of flowing microfluidic droplets, with both high detection sensitivity (αmin < 10-2 cm-1) and excellent spatial and temporal resolution: an SC light source and sensitive, fast readout CCD allowed measurement repetition rates of 273 Hz, whilst probing a very small sample volume (ca. 90 nL). A significant portion of this thesis is devoted to demonstrating the powerful capabilities of CEAS, CRDS and BBCEAS in monitoring radical recombination reactions and associated magnetic field effects (MFEs) in solution. The efficacy of CEAS as a high-sensitivity MFE detection method has been established in a proof-of-principle study, using narrow band CEAS in combination with phase-sensitive detection: MFE-induced absorbance changes of ca. 10-6 could be detected using the modulated CEAS technique and the data are shown to be superior to those obtained using conventional transient absorption (TA) methods typically employed for MFE measurements. The powerful capabilities of CRDS in monitoring radical recombination reactions and associated MFEs are also demonstrated. In particular, a pump-probe CRDS variant allows not only high sensitivity (Amin on the order 10-6), but also sub-microsecond time-resolution. Combined, these features represent significant advantages over TA. Finally, SC-BBCEAS is used to measure full visible spectra of photoinduced reactions and their MFEs. The applicability of this approach to in vitro MFE studies of Drosophila cryptochrome is demonstrated—the results mark the first in vitro observation of a magnetic field response in an animal cryptochrome, a key result supporting the hypothesis that cryptochromes are involved in the magnetic sense in animals

    Mrs. Sterling Hamlet with Jesse Stuart (on right), ca. 1958,

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    Mrs. Sterling Hamlet with Jesse Stuart (on right), ca. 1958, b&w. Note on back reads: L. Mrs. Sterling Hamlet (nee Theodosia Kirkland), past president, Women\u27 s Club of Huntington. R. Jesse Stuart (Author\u27s luncheon).https://mds.marshall.edu/doris_miller_papers/1106/thumbnail.jp

    In the space behind his eyes : Donald R. Stuart : a biography

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    The major part of this thesis, In the Space Behind His Eyes, is a biography of Western Australian author, Donald Robert Stuart (1913-1983), a colourful life story woven around accepted and persistent myths found in the Australian psyche. In his childhood, Donald Stuart listened to stories about his Scottish immigrant grandfather finding gold on the Victorian fields and his father\u27s part in the 1891 Queensland Shearers strike. His poverty-stricken, but peaceful, upbringing in suburban Perth, Western Australia, was overtaken by the 1930s Depression and, as a rebellious fourteen-year old, he left home and took to the road. In the next decade or so, as he adopted the north-west outback life, he was exposed further to Australia\u27s traditional yarns and philosophies. He emerged from this period as the outrageous ‘Scorp’ Stuart, who drank too much and took advantage of the freedoms on offer. At the start of World War II, Scorp volunteered for the 2nd AlF. He served in the Middle East and somehow survived three-and-a-half years as a Prisoner of the Japanese, including a time on the infamous Burma-Thailand railway. On his return to Australia, he began to tread the writer\u27s path, supplementing his memories with renewed visits to the outback of his youth and working on yet another railway. Encouraged by his sister and her friends, supported by two of his wives and recognised by the Western Australian writh1g community, Donald R. Stuart played the role of noted author, a construct only possible because of Scorp Stuart\u27s adventures. Calling on these experiences, in eleven novels and many short stories, he set down his record of a particular Australian life. The varying facets of his complex character come together in his writing, notably through his deep love of the land and in his sympathetic examination of the north-west Aborigines\u27 position since white settlement. This biography of a writer sets out to trace the life of Donald Stuart, examine the disparity between Stuart the bushman and Stuart the noted author, and to shed light on the man behind the writing. In the essay following In the Space Behind His Eyes, I explore the biographical form, consider directions the genre has taken in recent years, discuss aspects of biography generally and support choices made in the writing of this biography

    Scene thinking

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    An introduction is presented in which the author discusses several articles within the issue on topics including social research for scene thinking , genealogy development and Actor-Network Theory.Peer reviewedFinal article publishe
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