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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
251

Researching sustainability : material semiotics and the Oil Mallee Project

Bell, Sarah Jayne. January 2003 (has links)
Thesis submitted to the Division of Arts. Bibliography: p. 273-289.
252

Progressive modification : how parents deal with home schooling their children with intellectual disabilities

Reilly, Lucy January 2007 (has links)
While home schooling is by no means a new phenomenon, the last three decades have seen an increasing trend in the engagement of this educational alternative. In many countries, including Australia, a growing number of families are opting to remove their children from the traditional schooling system for numerous reasons and educate them at home. In response to the recent home schooling movement a research base in this area of education has emerged. However, the majority of research has been undertaken primarily in the United States of America and the United Kingdom, with very few studies having examined home schooling in Australia. The existing corpus of research is also relatively small and incomplete. Also, certain categories of home schoolers and the processes involved in their undertaking of this modern version of a historically enduring educational alternative have been overlooked. In particular, children with disabilities appear to be one of the home schooling groups that have attracted very little research world wide. This group constituted the focus of the study reported in this thesis. Its particular concern was with generating theory regarding how parents deal with educating their children with intellectual disabilities from a home base over a period of one year. Data gathering was largely carried out through individual, face-to-face semi-structured interviewing and participant observation in the interpretivist qualitative research tradition. However, informal interviews, telephone interviews and documents were also used to gather supplementary data for the study. Data were coded and analysed using the open coding method of the grounded theory model and through the development and testing of propositions. The central research question which guided theory generation was as follows: 'How do parents within the Perth metropolitan area in the state of Western Australia deal with educating their children with intellectual disabilities from a home base over a period of one year?' The central proposition of the theory generated is that parents do so through progressive modification and that this involves them progressing through three stages over a period of one year. The first stage is designated the stage of drawing upon readily-available resources. The second stage is designated the stage of drawing upon support networks in a systematic fashion. The third stage is designated the stage of proceeding with confidence on the basis of having a set of principles for establishing a workable pattern of home schooling individualised for each circumstance. This theory provides a new perspective on how parents deal with the home schooling of their children with intellectual disabilities over a period of one year. A number of implications for further theory development, policy and practice are drawn from it. Several recommendations for further research are also made.
253

Fungal endophyte diversity in foliage of native and cultivated Rhododendron species determined by culturing, ITS sequencing, and pyrosequencing

Raizen, Nathaniel L. 21 March 2013 (has links)
Western Oregon is home to native Rhododendron species and is the center for cultivated Rhododendron production in the United States. These Rhododendron spp. are known to be infected with fungal endophytes. However, the community structure of these endophytes in native and cultivated Rhododendron is poorly understood. Our study targeted the foliar fungal endophyte communities of two native Rhododendron spp. and two non-native commercially cultivated Rhododendron varieties. Parallel culturedependent (fungal isolation and identification based on ITS sequencing) and cultureindependent sequencing approaches (metagenomic sequencing of the ITS region using 454 pyrosequencing) were employed, and results provided evidence of distinctly different community structure in each host species. Additionally, results indicated higher diversity among cultivated and nursery grown Rhododendron. This suggests that the close proximity of the nurseries sampled to the forest environment allows exposure to two distinct sources of endophyte infection. Together, our results show the importance of host identity and environment in structuring the associated endophyte communities. / Graduation date: 2013
254

Relationship of site index to estimates of soil moisture and nutrients for western redcedar in south coastal British Columbia

Klinka, Karel, Kayahara, Gordon J., Chourmouzis, Christine January 1997 (has links)
Where timber production is the primary management objective, knowledge of the relationship between the potential productivity of candidate tree species and levels of light, heat, nutrient, moisture and aeration is necessary for species- and site-specific decision making. For example, foresters need to decide which tree species to regenerate on a particular harvested area to obtain maximum sustainable productivity. Similarily, when considering the application of silvicultural treatments such as spacing or fertilizing, foresters need to determine whether the potential productivity of a particular site warrants the cost of the treatment. We used the site index (height of dominant trees at breast height age) of western redcedar (Thuja plicata Donn. ex D. Don.) as a measure of productivity, and described the pattern of mean site index in relation to field identified soil moisure and soil nutrient regimes.
255

The role of journal writing in initiating reflection on practice of tutors in a college learning centre

Robinson, Julia Margaret January 1900 (has links)
A discrepancy appears to exist between the value placed on reflective journal writing by the writers of journals and the value seen by educators of that same journal writing. In this study, I explored the journal writing of six tutors working in a learning centre at a two-year community college in western Canada. I examined: (1) tutors' perspectives on the journal writing task; (2) the content and reflectivity of tutors' journals; and, (3) the accuracy of the journals in representing tutor thinking initiated by the journal writing task. The initial data collection for the study included observation of weekly in-service training sessions and examination of tutor journal entries. Tutors were interviewed about their perceptions of journal writing and their thinking around issues they wrote about in their journals. The tutor trainer was interviewed about his expectations of tutor journal writing, his reactions to tutors' journals and his perceptions of the journal writing task. After the initial data collection, the participants were given summaries of data collected in the initial phase. Tutors read the summaries and as a group discussed issues raised by the data. I interviewed the trainer about insights he had gained from the summaries. Content choices and levels of reflectivity in the tutors' journals varied widely. Factors affecting the content and levels of reflection in the tutors' journals were affected by tutors’ understanding of the journal writing task, their motivation for journal writing, their feelings of vunerability, their personal histories, their tutoring experience, their preference for writing as a mode of learning, and their purposes for writing journals. Most tutors perceived their journals as useful to them, but the tutor trainer regarded the journals as less useful. This difference in perception of the benefits of journal writing can be attributed, at least in part, to the differing levels of access of the trainer and the tutors to the benefits of journal writing. The trainer based his understanding of the benefits of journal writing on the journals themselves whereas the tutors were aware of benefits that were not apparent from studying the journals. Interviews with the tutors showed that tutors reflected more as a result of the journal writing task than was evident from their journals. The trainer’s view of the reflection initiated by the journal writing task was obscured in tutors’ journals due to the fact, that tutors reported prior reflection, provided incomplete representation of their reflective thinking, made rhetorical choices which masked their levels of reflection, and continued to reflect after completion of journal entries. Implications of the study for educators include the importance of a process approach to journal writing, the risks of assuming that journals provide an accurate picture of the reflection the task initiates, and factors for consideration in the construction of the prompt for journal writing. Implications for researchers focus on the risks of assuming that journals provide an accurate measure of the benefits of the journal writing task. Collaboration with journal writers is seen as essential for any such measure to be achieved.
256

Patient's knowledge of diabetes, its ocular complications and management in a private practice population in the Western Cape, South Africa.

Phillips, Kevin Clyde. January 2011 (has links)
The aim of this study was to determine management regimens and level of knowledge of diabetes and its‟ ocular complications among private patients in a sample of the population of the Western Cape region of South Africa. A population-based cross-sectional study design, using purposive accidental random sampling, was used. Questionnaires completed by diabetic patients who fund their condition privately outside of the South African Public Health sector were used. One hundred and twenty-two subjects participated in the research, 66 (54%) males and 56 (46%) females. There were 73 rural and 49 urban participants. The overall sample mean BMI was 30.7, average fasting plasma glucose (FPG) 8.1 mmol/l and the majority of respondents did not perform a daily FPG test or know the significance of the HbA1c test. The majority of participants were unaware of the serious ocular consequences of prolonged hyperglycaemia. Sixty-seven percent of respondents considered that they knew enough about diabetes to manage their own condition. From the data it is apparent that private patients‟ knowledge of the systemic and ocular complications of diabetes is sub-optimal. Whilst the majority considered annual eye examinations as important, less than one-third of respondents actually undertook them. Optometrists should be offered programmes to enhance their skills and co-manage and educate diabetic patients with other health care practitioners on a formal basis. Health insurance institutions should take cognisance of the value of patient education and preventative diabetic management and incentivize patients and health care providers in this regard. / Thesis (M.Optom.)-University of KwaZulu-Natal, Westville, 2011.
257

An investigation into the relatiOnship between organizational commitment and absenteeism at a public health institution in the Western Cape.

Morar, Misha. January 2006 (has links)
<p>The relationship between organizational commitment among public health employees within South Africa is becoming a big concern as highlighted in media and studies. The aim of this study was to investigate the relationship between organizational commitment and absenteeism amongst different occupational clases within a health sector environment in the Western Cape region.</p>
258

Mycorrhizal association, propagation and conservation of the myco-heterotrophic orchid Rhizanthella gardneri

Mursidawati, Sofi January 2004 (has links)
Many orchids require mycorrhizal symbioses with fungi for their development and survival. Rhizanthella gardneri the Western Australian underground orchid is associated with the companion plant Melaleuca uncinata and its ectomycorrhizal fungus symbiont. Much less is known about the habitat requirements of its sister species, R. slateri, which occurs in Eastern Australia. The absence of chlorophyll from Rhizanthella gardneri and R. slateri results in total dependency on associations with fungal symbionts. Many ecological and biological aspects of these fascinating orchids remained poorly known, including the identity of the fungal associates and the nature of their tripartite associations with Rhizanthella and Melaleuca. Extremely high specificity of these mycorrhizal relationships is likely to be the most important factor explaining the highly specific habitat requirements of underground orchids. The purpose of this study was to conduct further investigations of the role of the mycorrhizal associations of Australian underground orchids by identifying the fungi involved in these associations, optimising their growth in sterile culture and devising efficient means for synthesising their tripartite associations with R. gardneri and M. uncinata. In total, 16 isolates of fungi were successfully obtained from the two underground orchids and used in a series of experiments to understand both the nature of the fungi and their relationship with orchids. The identity of these fungi was established by using conventional morphological and molecular methods. Cultural and morphological studies revealed that all isolates from R. gardneri and R. slateri were binucleate rhizoctonias with affinities to members of the genus Ceratobasidium. However, the teleomorph state that was observed from the R. slateri symbiont during this study more closely resembled a Thanatephorus species. Further identification using ITS sequence comparisons confirmed that mycorrhizal fungi of Rhizanthella belonged to the Rhizoctonia alliance with relatives that include Thanatephorus, Ceratobasidium, or Rhizoctonia from other continents with over 90% similarity. Most of these related fungi are known as plant pathogens, but some were orchid mycorrhizal fungi. However, the isolates from the two underground orchids were most closely related to each other and formed a discrete group relative to other known members of the Rhizoctonia alliance. Sterile culture experiments determined culture media preferences for mycorrhizal fungi from Rhizanthella and other orchids. A fully defined sterile culture medium designed to more closely resemble Australian soil conditions was formulated. This new medium was compared to undefined media containing oats or yeast extract and recommendations for growth of these fungi are provided. The undefined media based on oats provided the best growth of most fungi, but the new Australian soil media was also effective at growing most orchid mycorrhizal fungi and this fully defined media was less prone to contamination and should provide more reproducible results. A comparison of three methods for inoculating M. uncinata with the underground orchid fungi resulted in the production and characterisation of ectomycorrhizal roots and hyphae formed by fungi isolated from R. gardneri and R. slateri. These underground orchid fungi could easily be distinguished from other mycorrhizal fungi (caused by airborne contamination) by the characteristic appearance of these roots and hyphae. A new system for growing and observing tripartite mycorrhizal associations was devised using pots with side viewing windows and the use of transparent seed packets to contain Rhizanthella seeds. This method allowed all the stages of seed germination to be observed in the glasshouse, culminating in the production of underground orchid rhizomes. Seed germination was only successful when seed was placed directly over active M. uncinata ectomycorrhizas confirmed to belong to the correct fungus by microscopic observations through the side of window pots. The importance of these new scientific discoveries concerning the biology and ecology of the underground orchids and their associated fungi for the recovery of these critically endangered orchids are discussed.
259

Subnational economic development in federal systems : the case of Western Australia

Johnson, Kevin January 2006 (has links)
[Truncated abstract] The objectives of this study are threefold: Firstly, to consider the relevance (to subnational state development) and adaptability (to globalisation) of federalism from a Western Australian perspective. Secondly, to consider the way in which various State Governments in Western Australia have implemented economic development policies to benefit from the global political economy. Finally, it proposes alternative mechanisms for guiding long-term economic development policy decision-making in Western Australia. This final objective is addressed in light of the findings of the first two. It is recognised that incremental changes are possible in full knowledge of the embedded nature of the policy-making process in Western Australia . . . In the case of Western Australia, subnational autonomy does not herald the end of the nationstate so much as a new stage in globalisation. In terms of how the Western Australian State Government attracts capital and labour investment, its history as an independent colony and its physical isolation from the other colonies have created the initial conditions that frame the policy-making process, which includes a set of drivers influencing the decisions that are made by State agents. Overall, the State Government continues to reinforce the State’s role as a peripheral resource supplier to the national and global political economy. Within this context, however, alternative strategies can be proposed that may contribute to the long-term sustainable development of the State’s economy.
260

Regional dimensions of innovative activity in outer Western Sydney

Sharpe, Samantha A. January 2007 (has links)
Thesis (Ph.D.)--University of Western Sydney, 2007. / A thesis submitted to the University of Western Sydney, College of Health and Science, Urban Research Centre, in fulfilment of the requirements for the degree of Doctor of Philosophy. Includes bibliographical references.

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