Textual Apparitions: Power, Language, and Site in the Work of Jenny Holzer

Jenny Holzer\u27s text-based projects have attracted the attention of critics, historians, and curators from Des Moines to Dresden. An understanding of the complex interplay between language, gender, power, and site within Holzer\u27s work demonstrates how a singular interpretive approach is insufficient for discussing the multitude of meanings her projects produce. Perhaps most significantly, a fresh analysis of Holzer\u27s work and critical reactions to it challenges the story of modernism and postmodernism and the relationship between these two terms

Pumpable two-part resin cable bolt bonding material tests

The Australian underground mining industry extensively uses thixotropic cementitious grout as a bonding agent for cable bolts. Grout is very effective as a bonding agent but is prone to issues with consistently achieving full column encapsulation and has operational issues impacting production. An economically viable two-part resin bonding agent is being investigated by Jennmar which offers some operational advantages. This paper explores the bond strength evaluation of the two-part resin against cementitious grout

Using Open Stack for an Open Cloud Exchange(OCX)

We are developing a new public cloud, the Massachusetts Open Cloud (MOC) based on the model of an Open Cloud eXchange (OCX). We discuss in this paper the vision of an OCX and how we intend to realize it using the OpenStack open-source cloud platform in the MOC. A limited form of an OCX can be achieved today by layering new services on top of OpenStack. We have performed an analysis of OpenStack to determine the changes needed in order to fully realize the OCX model. We describe these proposed changes, which although significant and requiring broad community involvement will provide functionality of value to both existing single-provider clouds as well as future multi-provider ones

Development, trials and testing of an innovative method to improve strength characteristics of hollow cable bolts

The 70 t Sumo is a resin point-anchored, pre-tensioned, post-grouted hollow cable bolt for tunnel roof support, particularly in poor ground conditions. An innovative ancillary product to the 70 t Sumo is the Booster cable, which is designed to reinforce the Sumo and enhance the systems shear and tensile performance. The Booster cable is an 11 mm 7-wire PC strand with a nominal breaking load of 15 tonnes, which is inserted into the hollow centre tube of the 70 t Sumo after grouting, while the grout is still pliable. Theoretically, the Booster can increase the tensile and shear capacity of the 70 t Sumo by up to 20%. The Booster reinforced 70 t Sumo is useful in high demand conditions where additional support strength is required without the need to install new support. This paper will present results from laboratory tests undertaken to quantify the tensile and shear characteristics of the 70 t Sumo reinforced with the Booster cable. A case study of a support trial using Booster reinforced 70 t Sumo cable bolts at a Dendrobium is also presented in this paper. The Booster cable successfully reduced 70 t Sumo cable bolt densities by 25%, from four cables per meter to three

Developing critical understanding in HRM students:using innovative teaching methods to encourage deep approaches to study

Purpose – This paper aims to focus on developing critical understanding in human resource management (HRM) students in Aston Business School, UK. The paper reveals that innovative teaching methods encourage deep approaches to study, an indicator of students reaching their own understanding of material and ideas. This improves student employability and satisfies employer need. Design/methodology/approach – Student response to two second year business modules, matched for high student approval rating, was collected through focus group discussion. One module was taught using EBL and the story method, whilst the other used traditional teaching methods. Transcripts were analysed and compared using the structure of the ASSIST measure. Findings – Critical understanding and transformative learning can be developed through the innovative teaching methods of enquiry-based learning (EBL) and the story method. Research limitations/implications – The limitation is that this is a single case study comparing and contrasting two business modules. The implication is that the study should be replicated and developed in different learning settings, so that there are multiple data sets to confirm the research finding. Practical implications – Future curriculum development, especially in terms of HE, still needs to encourage students and lecturers to understand more about the nature of knowledge and how to learn. The application of EBL and the story method is described in a module case study – “Strategy for Future Leaders”. Originality/value – This is a systematic and comparative study to improve understanding of how students and lecturers learn and of the context in which the learning takes place

Source and equilibration studies of xenoliths from the Caledonian granites of Scotland

The origin of the dark microdioritic inclusions within I-type granitoids has been the subject of much debate and speculation. These 'xenoliths' have been variously ascribed to restite or cognate crystallisation (autoliths), wall rocks (accidental xenoliths), exotic (mantle) magmas and immiscible liquids. The object of this study was to test between these potential sources of inclusions and processes and to investigate whether such inclusions can be used to provide information on the petrogenesis of the host pluton and the nature of the source region(s) as well as processes of compositional zoning. The approach used was to study inclusions and their host rocks from three zoned plutons in the Caledonian of Scotland, namely Strontian, Ballachulish and Criffell. These were investigated petrographically, by whole rock major and trace element analysis and by Sr and Nd isotopes. Interpretation of the equilibration between inclusion and host benefitted from theoretical considerations of diffusion. It was found that for most 'igneous' inclusions Sr isotopes had thoroughly equilibrated, hosts and inclusions normally having identical Sr initial ratios. However the microdioritic inclusions normally retain a more primitive signature in their Nd isotopes (normally up to +2 Nd units greater than the host) precluding cognate, restite or immiscibility origins and are quite different from local country rocks. Most 'igneous' inclusions thus appear to have an exotic source of more primitive composition, presumably the upper mantle. The appinites of the Strontian pluton were also investigated as part of a study of coexisting acid-basic melts in granitoid plutons. It is shown that these appinites have quenched liquid contacts with the granitoid hosts and some degree of mixing between appinitic magma and host granitoid has given rise to a reverse zonation pattern in composition and texture. The isotopic data for the appinites of Strontian and for inclusions and their host granitoids in the Strontian and Criffell plutons point to a model for the initiation of granitoid magma genesis in the crust by advection of heat through transfer of basaltic magma from the upper mantle. Some of this magma is incorporated in the granitoid magma as basaltic inclusions which gradually become modified towards dioritic compositions. The characteristics of this mantle derived magma and the granitoid crustal source do not vary significantly between Strontian and Criffell in terms of Nd isotope model ages. This is a remarkable finding considering the very different tectonic settings and suggests greater similarities at deeper lithospheric levels. The study of Nd isotopes in xenolithic inclusions in granitoids has been shown to provide at least as much additional information on the petrogenesis of granitoid plutons as the conventional study of their host rocks, but a complementary study of Sr isotopes is not particularly useful. This investigation provides some of the theoretical basis for this and presents a methodology for carrying out such investigations