630 research outputs found

    Stuart Hall: Reflections, Memories, Appreciations

    Get PDF
    Stuart Hall was many things: public intellectual, academic leader, writer, editor, teacher, political activist, family man and friend. We write here of the two aspects we knew personally, writer and friend. Like so many of us engaged in the early formation of cultural and media studies, we both read and were seriously influenced by his work. John discussed Stuart Hall’s work extensively in his PhD thesis on Australian literature of the 1890s in international contexts, and Stuart was one of his examiners. Ann read Stuart’s work in the late 1970s, having just arrived to teach in the BA (Communication) degree at what was then the NSW Institute of Technology, ten years later to become University of Technology, Sydney (UTS)

    Biotechnical engineering on alluvial riverbanks of southeastern Australia: A quantified model of the earth-reinforcing properties of some native riparian trees

    Get PDF
    It is generally accepted that tree roots can reinforce soil and improve the stability of vegetated slopes. Tree root reinforcement is also recognised in riverbanks although the contribution that the roots make to bank stability has rarely been assessed due to the reluctance of geomorphologists to examine riverbank stability by geomechanical methods that allow for the inclusion of quantified biotechnical parameters. This study investigates the interaction between alluvial soil and the roots of four southeastern Australian riparian trees. It quantifies the amount and distribution of root reinforcement present beneath typically vegetated riverbanks of the upper Nepean River, New South Wales, and examines the effect of the reinforcement on the stability of these banks. The ability of a tree to reinforce the soil is limited by the spatial distribution of its root system and the strength that the roots impart to the soil during shear. These two parameters were determined for the following four species of native riparian tree: Casuarina glauca, Eucalyptus amplifolia, Eucalyptus elata, and Acacia floribunda. The four species all exhibit a progressive reduction in the quantity of root material both with increasing depth and with increasing lateral distance from the tree stem. In the vertical direction there are two distinct zones that can be described. The first occurs from between 0 and approximately 15 % of the maximum vertical depth and consists of approximately 80 % of the total root material quantity. In this zone the root system consists of both vertical and lateral roots, the size and density of which varies between species. The second zone occurs below approximately 15 % of the maximum vertical depth and consists primarily of vertical roots. The quantity of root material in this zone decreases exponentially with depth due to the taper of individual roots. The earth reinforcement potential in terms of both geometric extent and the quantity of root material expressed as the Root Area Ratio (RAR) varies significantly from species to species. E. elata exhibited the highest values of RAR in soil zones beneath it while E. amplifolia reinforced a greater volume of soil than any of the other species examined. The increased shear resistance (Sr) of alluvial soil containing roots was measured by direct in-situ shear tests on soil blocks beneath a plantation. For three of the species (C. glauca, E. amplifolia, E. elata) Sr increased with increasing RAR measured at the shear plane, in a similar linear relationship. The shear resistance provided by A. floribunda roots also increased with increasing RAR at the shear plane but at a much greater rate than for the other three species. This is attributable to A. floribunda’s greater root tensile strength and therefore pull-out resistance, as well as its smaller root diameters at comparative RARs which resulted in a greater proportion of roots reaching full tensile strength within the confines of the test. Tree roots fail progressively in this system. Therefore determining the increased shear strength from the sum of the pull-out or tensile strengths of all individual roots and Waldron’s (1977) and Wu et al’s (1979) simple root model, would result in substantial over estimates of the overall strength of the soil-root system. The average difference between Sr calculated in this manner and that measured from direct in-situ shear tests is 10.9 kPa for C. glauca, 19.0 kPa for E. amplifolia, 19.3 kPa for E. elata, and 8.8 kPa for A. floribunda. A riverbank stability analysis incorporating the root reinforcement effect was conducted using a predictive model of the spatial distribution of root reinforcement beneath riparian trees within the study area. The model is based on measurements of juveniles and observations of the rooting habits of mature trees. It indicates that while the presence of vegetation on riverbank profiles has the potential to increase stability by up to 105 %, the relative increase depends heavily on the actual vegetation type, density, and location on the bank profile. Of the species examined in this study the greatest potential for improved riverbank stability is provided by E. amplifolia, followed by E. elata, A. floribunda, and C. glauca. The presence of trees on banks of the Nepean River has the potential to raise the critical factor of safety (FoS) from a value that is very unstable (0.85) to significantly above 1.00 even when the banks are completely saturated and subject to rapid draw-down. It is likely then that the period of intense bank instability observed within this environment between 1947 and 1992 would not have taken place had the riparian vegetation not been cleared prior to the onset of wetter climatic conditions. Typical ‘present-day’ profiles are critically to marginally stable. The introduction of vegetation could improve stability by raising the FoS up to 1.68 however the selection of revegetation species is crucial. With the placement of a large growing Eucalypt at a suitable spacing (around 3-5 m) the choice of smaller understorey trees and shrubs is less important. The effect of riparian vegetation on bank stability has important implications for channel morphological change. This study quantifies the mechanical earth reinforcing effect of some native riparian trees, thus allowing for improved deterministic assessment of historical channel change and an improved basis for future riverine management

    Places Lived: An Ego-Histoiriste and Jurisographer Discuss Living with Law in Sydney

    Get PDF
    The following essays, by John Docker and myself, were delivered on the final panel of the ‘Lives Lived with Law’ symposium, held at the Melbourne Law School in December 2014. The panel was called ‘Places Lived’, and our purpose was to reflect together on how intellectual traditions are inherited and inhabited in a place. The essays were written and presented as they are published here, commencing with this short introduction. We wanted to stage in public a long-standing personal discussion about what it might mean to write about Australia, in many forms and styles of address and how this involves, for us, self-fashioning a life through writing in Australia, and as Australians. In both instances, as will become evident in my essay, I have a debt to pay to John

    Time, eternity, truth, and death: history as allegory

    No full text
    The act of remembrance through history, the desire to impose 'form on formless time', lies deep in our culture? Not in all cultures, as Levi Strauss remarked: historical thinking is not necessary thinking, is not essential to our humanity.' But in Western societies it is inescapable, we cannot think without or beyond distinctions between future, present, and past, and such thinking is deep in the classical and Judeo-Christian heritage

    Stuart Hall and Cultural Studies, circa 1983

    Get PDF
    Stuart Hall sought to internationalise theoretical debates and to create Cultural Studies as interdisciplinary. We chart his theoretical journey through a detailed examination of a series of lectures delivered in 1983 and now published for the first time. In these lectures, he discusses theorists such as E.P. Thompson, Raymond Williams, Louis Althusser, Levi Strauss and Antonio Gramsci, and explores the relationship between ideas and social structure, the specificities of class and race, and the legacies of slavery. We note his turn towards metaphors of divergence and dispersal and highlight how autobiographical and deeply personal Hall is in these lectures, especially in his ego histoire moment of traumatic memory recovery

    Goal setting with older people in acute care before and after discharge: Occupational therapists' perspectives

    Get PDF
    Background: The World Health Organisation identified that there is an increased risk to elderly of readmission to hospital following an acute hospital admission due to decreased function and deconditioning during hospitalisation. As such, researchers have reviewed the discharge process of older adults to identify areas for potential improvement. The aim of this study was to explore the experiences of occupational therapists during goal setting in acute aged care in Australia and to determine whether implementing training and a structured goal setting procedure such as the HOME protocol is feasible and beneficial. Method: This study used a phenomenological study design and semi-structured interviews. Four therapists who participated in the HOME trial were recruited from New South Wales and Victoria. Interviews were conducted by telephone and focused on the therapist experiences of goal setting before, during and after the HOME study. Interviews were recorded and transcribed verbatim. Thematic analysis of the interview data was conducted and involved coding, data reduction, categorisation and determining themes and relationships. Results: Results suggested three themes related to goal setting in acute aged care: (a) developing client-centred goals, (b) the therapist experience and training and (c) the ideal goal setting practice. However, therapists perceived that the reality of practice puts a number of pressures on them when setting goals in order to manage the return home for older persons – as such, some elements of best practice in goal setting must be forfeited. Conclusions: Goal setting in acute aged care in Australia is complex and therapists face many of the same challenges as those in other western countries. Furthermore, therapists found structured goal setting frameworks to be beneficial, however, felt that they are not feasible in the current context of practice

    Goal setting with older people in acute care before and after discharge: Occupational therapists' perspectives

    Get PDF
    Background: The World Health Organisation identified that there is an increased risk to elderly of readmission to hospital following an acute hospital admission due to decreased function and deconditioning during hospitalisation. As such, researchers have reviewed the discharge process of older adults to identify areas for potential improvement. The aim of this study was to explore the experiences of occupational therapists during goal setting in acute aged care in Australia and to determine whether implementing training and a structured goal setting procedure such as the HOME protocol is feasible and beneficial. Method: This study used a phenomenological study design and semi-structured interviews. Four therapists who participated in the HOME trial were recruited from New South Wales and Victoria. Interviews were conducted by telephone and focused on the therapist experiences of goal setting before, during and after the HOME study. Interviews were recorded and transcribed verbatim. Thematic analysis of the interview data was conducted and involved coding, data reduction, categorisation and determining themes and relationships. Results: Results suggested three themes related to goal setting in acute aged care: (a) developing client-centred goals, (b) the therapist experience and training and (c) the ideal goal setting practice. However, therapists perceived that the reality of practice puts a number of pressures on them when setting goals in order to manage the return home for older persons – as such, some elements of best practice in goal setting must be forfeited. Conclusions: Goal setting in acute aged care in Australia is complex and therapists face many of the same challenges as those in other western countries. Furthermore, therapists found structured goal setting frameworks to be beneficial, however, felt that they are not feasible in the current context of practice

    From Heteroditopic to Multitopic Receptors for Ion-Pair Recognition: Advances in Receptor Design and Applications

    Get PDF
    Ion-pair recognition has emerged from cation and anion recognition and become a diverse and active field in its own right. The last decade has seen significant advances in receptor design in terms of the types of binding motifs, understanding of cooperativity and increase in complexity from heteroditopic to multitopic receptors. As a result, attention has turned to applying this knowledge to the rational design of ion-pair receptors for applications in salt solubilisation and extraction, membrane transport and sensing. This Review highlights recent progress and developments in the design and applications of heteroditopic and multitopic receptors for ion-pair recognition

    Passionate Histories

    Get PDF
    This book examines the emotional engagements of both Indigenous and Non-Indigenous people with Indigenous history. The contributors are a mix of Indigenous and Non-Indigenous scholars, who in different ways examine how the past lives on in the present, as myth, memory, and history. Each chapter throws fresh light on an aspect of history-making by or about Indigenous people, such as the extent of massacres on the frontier, the myth of Aboriginal male idleness, the controversy over Flynn of the Inland, the meaning of the Referendum of 1967, and the policy and practice of Indigenous child removal
    • …
    corecore