23 resultados para Retaining walls
Resumo:
This paper is based on results of a national study in Australia. Questionnaires were completed by 643 employers, each of whom had employed a person with a disability between 1996--1998. Employers rated the importance of several factors relevant to decisions to hire and retain a person with a disability. Individual factors were rated most important, with grooming/hygiene and work-performance factors rated highest. Management factors and cost factors were rated moderately important. Social factors were rated least important. Analyses of variance were conducted, identifying several employer differences in ratings. The paper discusses employer values as well as the need to include employers in a partnership approach.
Resumo:
The internal environment within an unconditioned wine barrel store, constructed from insulated concrete panels and located in south-eastern Australia, has been investigated during a summer and winter month. Average temperatures inside the store were found to be 13.7°C and 22.8°C in the winter and summer month respectively. A validated mathematical model of the store was used to investigate the contribution of the concrete walls, insulation and the wine itself to the internal thermal environment. The concrete walls were found to be the least influential.
Resumo:
In Australia, the 1960s saw a broadening of music offerings from other cultures in school materials from the Australian Broadcasting Commission (ABC). This is a useful indicator for changing perceptions. Since then, increasingly 'authentic' materials have become available but how far have we really come? Blacking (How musical is man? University of Washington Press, Seattle, 1973) identified the difficulty of acquiring and understanding, skill and authenticity in the music of another culture. He stressed that musical acquisition should occur in a cultural context. Removing music from one culture and presenting it in the symbolic gestures of another may strip its meaning. This is particularly true for musics from cultures removed from the Western paradigm. The further we move from our cultural norm, the harder it is to produce authentic experiences for students. By considering the African music resources offered to schools by the ABC, we can explore the attempts we have made to move from colonialism to multiculturalism.
Resumo:
The diagrams of fraction-walls, and beyond, may be useful aids for teaching those fascinating topics of fractions, and their cousins decimals and percentages.
Resumo:
Hev b 6.01 is a major allergen of natural rubber latex with sensitization of 70–86% of latex glove-allergic subjects. Recently, we mapped the immunodominant T cell sites of Hev b 6.01 to the highly IgE-reactive hevein (Hev b 6.02) domain. Hev b 6.01 contains 14 cysteine residues with multiple disulphide bridges stabilizing tertiary conformation. With the goal of a standardized specific immunotherapy we developed hypoallergenic Hev b 6.01 mutants by site-directed mutagenesis of selected cysteine residues (3, 12, 17, and 41) within the Hev b 6.02 domain. Peptides corresponding to the Hev b 6.02 domain of two of the mutants were also synthesized. These mutants and peptide variants showed markedly decreased or ablated latex-allergic patient serum IgE binding by immunoblotting and ELISA. Basophil activation testing confirmed markedly decreased activation with successive cysteine substitutions of the mutants and complete abrogation with the Hev b 6.02 (Cys 3, 12, 17, 41 Ala) peptide. Retention of T cell reactivity is crucial for effective specific immunotherapy and all mutants and peptide variants maintained their latex-specific T cell reactivity. The ablated allergenicity but retained T cell reactivity of the Hev b 6.02 (Cys 3, 12, 17, 41 Ala) peptide suggests this peptide is a suitable candidate for inclusion in a latex immunotherapy preparation.
Resumo:
Masonry walls are usually laid with the individual masonry units along a course overlapping units in the course below. Commonly, the perpend joints in the course occur above the mid-points of the units below to form a ‘half-bond’ or above a third point to form a ‘third-bond’. The amount of this overlap has a profound influence on the strength of a wall supported on three or four sides, where lateral pressures from wind cause combined vertical and horizontal flexure. Where masonry units are laid with mortar joints, the torsional shear bond resistance between the mortar and overlapping units largely determines the horizontal flexural strength. If there is zero bond strength between units, then the horizontal flexural strength is derived from the frictional resistance to torsion on the overlapping bed-faces of the units. This thesis reports a theoretical and experimental investigation into the frictional properties of overlapping units when subjected to combinations of vertical and horizontal moments and vertical axial compression. These basic properties were used to develop a theory to predict the lateral strength of walls supported on two, three or four sides. A plastic theory of behaviour was confirmed by experiment. The theory was then used to determine maximum unbraced panel sizes for particular boundary conditions. Design charts were developed to determine temporary bracing requirements for panels during construction.
Resumo:
The thesis is presented in two parts: a novel and a theoretical essay. It is a broadly autobiographical work, concerning issues and events surrounding father-daughter rape. It is written from the mother's perspective, and deals with the impact of child sexual assault on the lives of two generations of working-class women.