ORCID Profile
0000-0002-4756-2399
Current Organisations
Self Employed
,
Michigan Medicine
,
Flinders University
,
University of South Australia
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Publisher: Informa UK Limited
Date: 23-12-2018
Publisher: Informa UK Limited
Date: 28-07-2017
Publisher: Cambridge University Press
Date: 2016
Publisher: MDPI AG
Date: 05-05-2022
Abstract: Background: Silver nanoparticles (AgNPs) are toxic to microorganisms and can potentially kill multidrug-resistant bacteria. Nanoparticles can be synthesized in many ways, such as physical or chemical methods. Recently, it has been found that plant molecules can perform the same reduction reactions necessary for the production of nanoparticles but in a much more efficient way. Results: Here, green chemistry was employed to synthesize AgNPs using leaf extracts of Cymbopogon citratus. The effects of different parameters such as temperature, pH, and the volume of plant extract were also tested using their absorbance pattern at different wavelengths. The Surface Plasmon Resonance (SPR) changed with the changes in parameters. Changes in temperature from 20 °C to 60 °C have changed the highest absorbance from 0.972 to 3.893 with an SPR of 470 nm. At higher pH (11.1), the particles become highly unstable and have irregular shapes and sizes. The peak shifts to the right at a lower pH level (3.97), indicating a smaller but unstable compound. We have also investigated the effect of the volume of plant extracts on the reaction time. The s le with the highest amount of plant extract showed the most absorbance with a value of 0.963 at λmax, calculated to be 470 nm. The total formation of the AgNPs was observed visually with a color change from yellow to brownish-black. UV-visible spectroscopy was used to monitor the quantitative formation of AgNPs, showing a signature peak in absorbance between 400 and 500 nm. We have estimated the size of the nanoparticles as 47 nm by comparing the experimental data with the theoretical value using Mieplot. The biosynthesized AgNPs showed enhanced antibacterial activity against several multidrug-resistant bacteria, determined based on the minimal inhibitory concentration and zone of inhibition. Conclusion: The findings of this study indicate that an aqueous extract of C. citratus can synthesize AgNPs when silver nitrate is used as a precursor, and AgNPs act as antimicrobial property enhancers, which can be used to treat antibiotic-resistant bacteria. Hence, mass production and green synthesis of AgNPs from C. citratus will be able to increase the overall health of the general population. Moreover, it will enormously reduce the costs for drug development and provide employment options in the remotely located source areas. Finally, our findings will influence further studies in this field to better understand the properties and applications of AgNPs and ultimately contribute to improving planetary health by increasing immunity with high biocompatibility and less drug toxicity.
Publisher: Routledge
Date: 22-05-2023
Publisher: Cambridge University Press (CUP)
Date: 14-12-2022
Abstract: In late 2013, under the leadership of Prime Minister Abbott, the Australian Government announced a new policy designed to increase attendance rates in remote community schools—the Remote School Attendance Strategy (RSAS). The model assumed that employing local people in the program, which was designed to support parents get their children to school, would yield significant improvements and consequently improve educational outcomes. After a slight initial increase in school attendance rates, RSAS schools have seen average attendance rates decline since 2016, which now stand more than eight percentage points lower than at commencement. This article analyses My School data for Very Remote Aboriginal schools, showing how the RSAS school attendance results compare with similar non-RSAS schools. We question why the Australian Government continues to invest in a program that is not meeting its objectives, asking, what went wrong?. We do this by critically analysing 36 policy-related documents, looking for ideological clues that show why the government continues to invest in the program and how it sees it as “successful”. We conclude by raising ethical and accountability concerns about the RSAS, which lacks evidence of attendance improvement, and which potentially causes harm to its objects: First Nations students.
Publisher: Cambridge University Press (CUP)
Date: 12-2019
DOI: 10.1017/JIE.2018.1
Abstract: The 2014 Wilson review of Indigenous Education in the Northern Territory recommended boarding school models as the preferred secondary education option for very remote Aboriginal students. This study considers boarding uptake by Aboriginal students from the Central Land Council region of the Northern Territory. An examination of boarding programs available to Aboriginal students in this region found that scholarship access is largely determined by socioeducational advantage and the perceived social stability of the family and student. To increase access and participation in boarding, more flexible funding assistance programs are needed. An expanded role for brokering could also increase retention and completion rates. Ultimately, more investment is also required in remote community schools, and in the development of ‘both ways’ capital if the social and educational aspirations of young Aboriginal students and their families in this region are to be realised through a boarding school model.
Publisher: Routledge
Date: 06-04-2023
Publisher: Routledge
Date: 30-05-2023
Publisher: Emerald
Date: 19-04-2022
Abstract: This article explores the childhood, professional life and social activism of Alice Rigney (1942–2017) who became Australia's first Aboriginal woman principal in 1986. The article draws on interviews with Alice Rigney along with newspapers, education department correspondence and reports of relevant organisations which are read against the grain to elevate Aboriginal people's self-determination and agency. The article illuminates Alice/Alitya Rigney's engagement with education and culture from her childhood to her work as an Aboriginal teacher aide, teacher, inaugural principal of Kaurna Plains Aboriginal school in Adelaide, South Australia and her activism as a Narungga and Kaurna Elder. Furthermore, the article highlights her challenges to racial and gender discrimination in the state school system. While there is an expanding body of historical research on Aboriginal students, this article focuses on the experiences of an Aboriginal educator which are also essential to deconstructing histories of Australian education.
Publisher: Routledge-Cavendish
Date: 16-04-2008
Publisher: Wiley
Date: 31-10-2014
Publisher: Informa UK Limited
Date: 14-03-2016
Publisher: Routledge
Date: 06-04-2023
Publisher: Springer Science and Business Media LLC
Date: 09-05-2013
Publisher: Routledge
Date: 06-04-2023
Publisher: Informa UK Limited
Date: 08-2011
Publisher: Wiley
Date: 21-03-2010
Publisher: Routledge
Date: 30-05-2023
Publisher: Springer Singapore
Date: 2017
Publisher: SAGE Publications
Date: 11-2014
DOI: 10.1177/117718011401000504
Abstract: Indigenous involvement at all stages of research has been called for over several decades and is now an increasingly accepted requirement. This paper outlines the research approaches of the Community Based Adaptation to Climate Change: The Arabunna, South Australia project, which in the initial development phase identified a number of basic tenets. The intent is to outline these tenets, discuss the level of Indigenous involvement and activity within this project and analyse the approach taken in the context of key features articulated within Indigenous research over previous decades. Finally, this paper reflects on future research directions, particularly the importance of informed Indigenous involvement, the need for respectful relationships in multi-knowledges and multi-disciplinary research and the importance of communication.
Publisher: Informa UK Limited
Date: 29-10-2015
Publisher: Routledge
Date: 06-04-2023
Publisher: Oxford University Press (OUP)
Date: 09-07-2015
DOI: 10.1093/IJE/DYU122
Publisher: Informa UK Limited
Date: 05-03-2019
Publisher: Informa UK Limited
Date: 10-1998
Publisher: Springer International Publishing
Date: 2017
Publisher: Informa UK Limited
Date: 29-01-2023
Publisher: Springer International Publishing
Date: 2023
Publisher: Informa UK Limited
Date: 21-07-2022
Publisher: JSTOR
Date: 1999
DOI: 10.2307/1409555
Publisher: SAGE Publications
Date: 02-01-2020
Abstract: Global neoliberal imperatives that numerically measure student success through standardized testing undermine the educational outcomes of students, in particular Indigenous students, and construct a seemingly fixed reality that avoids State responsibility to address structural inequality in Australia. Achievement gaps between Indigenous and non-Indigenous school students in mathematics have become an urgent international problem. Although evidence suggests that culturally responsive pedagogies (CRPs) improve student academic success for First Nations peoples in settler colonial countries such as the United States, Canada, New Zealand, and Australia, less prominent is a focus on how CRP is enacted and mobilized in Australian classrooms. Although some initiatives exist, this article explores how creative and body-based learning (CBL) strategies might be utilized to enact CRP. Using an ethnographic case study approach, we examined how two early career teachers serving Indigenous and ethnically erse students implemented CBL to reengage students with mathematics. Findings suggest that the teachers were able to mobilize a number of CRP principles using CBL strategies to facilitate engagement in mathematics for urban Aboriginal students. Specifically, when teachers repositioned students as “competent” and designed embodied learning experiences that connected to their cultural backgrounds, students let go of their cautious learner histories and remade themselves as clever and competent.
Publisher: Informa UK Limited
Date: 08-2021
Publisher: AIP Publishing
Date: 13-09-2010
DOI: 10.1063/1.3488818
Abstract: The effect of feature sizes on the characteristics of lateral spintronic devices have been investigated experimentally and theoretically. It is demonstrated that confining spin-transport in the active region of a device enhances magnitude of the spin-dependent response substantially. Numerical simulation of spin-transport corroborates the experimental observations. Device characteristics are found to be a strong function of spin-polarizer and analyzer dimensions. The response is observed to attain a peak value for an optimum device feature size, and this is seen to be a function of temperature. Spin dependent effects become weaker for very small and very large devices.
Publisher: Elsevier BV
Date: 08-2020
Location: India
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Location: United Kingdom of Great Britain and Northern Ireland
Start Date: 2016
End Date: 2017
Funder: Office for Learning and Teaching
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