Schur functions for approximation problems
- Authors: Sukhorukova, Nadezda , Ugon, Julien , Yost, David
- Date: 2020
- Type: Text , Book chapter
- Relation: 2018 Matrix Annals p. 331-337
- Full Text: false
- Reviewed:
- Description: In this paper we propose a new approach to least squares approximation problems. This approach is based on partitioning and Schur function. The nature of this approach is combinatorial, while most existing approaches are based on algebra and algebraic geometry. This problem has several practical applications. One of them is curve clustering. We use this application to illustrate the results.
Schwertmannite in soil materials : Limits of detection of acidified ammonium oxalate method and differential X-ray diffraction
- Authors: Vithana, Chamindra , Sullivan, Leigh , Bush, Richard , Burton, Edward
- Date: 2015
- Type: Text , Journal article
- Relation: Geoderma Vol. 249-250, no. (2015), p. 51-60
- Full Text: false
- Reviewed:
- Description: Schwertmannite is a secondary iron mineral, found in acid mine drainage (AMD) and acid sulfate soils (ASS), that generates acidity when it transforms to stable mineral phases. Acidity liberated during schwertmannite transformation can seriously diminish water quality and soil health. Acidified ammonium oxalate (AAO) extraction in the dark coupled with differential X-ray diffraction (DXRD) analysis is routinely used to identify and to quantify poorly crystalline iron oxide phases such as schwertmannite in AMD environments. However, management of ASS environments is largely impacted due to lack of reliable methods to identify/quantify schwertmannite in soil materials. Our study aimed to evaluate the 15. min AAO extraction method to identify/quantify schwertmannite in soil materials. We extracted soil samples spiked with synthetic and natural schwertmannite (termed as natural organic rich schwertmannitic material) with acidified ammonium oxalate (AAO) for 15. min. We also examined soil samples spiked with schwertmannite through the DXRD analysis under ideal conditions assuming that only schwertmannite would dissolve during the extraction. Our data show that synthetic schwertmannite dissolved partially during the 15. min AAO extraction and as a result the recovered Fe content from schwertmannite-spiked soils was underestimated by ~. 20%. The data also show that soil materials could also influence the recovery of schwertmannite. Fe/S molar ratios of schwertmannite spiked at higher rates (2% and 5%) were closer to the expected ratios. In addition to schwertmannite, goethite and other unidentified minerals in natural organic rich schwertmannitic material also dissolved during the 15. min extraction time. The DXRD analysis data show that schwertmannite in soil materials at contents >. 5% may be identifiable through this approach. Our findings highlight that both the 15. min AAO extraction procedure and the DXRD analysis have limited applicability towards detecting schwertmannite accurately in soil materials. © 2015 Elsevier B.V.
Schwertmannite transformation to goethite via the Fe(II) pathway : Reaction rates and implications for iron-sulfide formation
- Authors: Burton, Edward , Bush, Richard , Sullivan, Leigh , Mitchell, David
- Date: 2008
- Type: Text , Journal article
- Relation: Geochimica et Cosmochimica Acta Vol. 72, no. 18 (2008), p. 4551-4564
- Full Text: false
- Reviewed:
- Description: Schwertmannite (Fe8O8(OH)6SO4) is a common Fe(III)-oxyhydroxysulfate mineral in acid-sulfate systems, where its formation and fate strongly influence water quality. The present study examines transformation of schwertmannite to goethite (FeOOH), as catalyzed by interactions with Fe(II) in anoxic aquatic environments. This study also evaluates the role of the Fe(II) pathway in influencing the formation of iron-sulfide minerals in such environments. At pH > 5, the rates of Fe(II)-catalyzed schwertmannite transformation were several orders of magnitude faster than transformation in the absence of Fe(II). Complete transformation of schwertmannite occurred within only 3-5 h at pH > 6 and Fe(II)(aq) ≥ 5 mmol L-1. Model calculations indicate that the Fe(II)-catalyzed transformation of schwertmannite to goethite greatly decreases the reactivity of the Fe(III) pool, thereby favoring SO4-reduction and facilitating the formation of iron-sulfide minerals (particularly mackinawite, tetragonal FeS). Examination of in situ sediment geochemistry in an acid-sulfate system revealed that the rapid Fe(II)-catalyzed transformation was consistent with an abrupt shift from an acidic Fe(III)-reducing regime with abundant schwertmannite near the sediment surface, to a near-neutral mackinawite-forming regime where goethite was dominant. This study demonstrates that the Fe(II) pathway exerts a major influence on schwertmannite transformation and iron-sulfide formation in anoxic acid-sulfate systems. These findings have important implications for understanding acidity dynamics and trace element mobility in such systems. © 2008 Elsevier Ltd. All rights reserved.
Science students' perceptions of engaging pedagogy
- Authors: Darby, Linda
- Date: 2005
- Type: Text , Journal article
- Relation: Research in Science Education Vol. 35, no. 4 (2005), p. 425-445
- Full Text: false
- Reviewed:
- Description: During their years of schooling, students develop perceptions about learning and teaching, including the ways in which teachers impact on their learning experiences. This paper presents student perceptions of teacher pedagogy as interpreted from a study focusing on students' experience of Year 7 science. A single science class of 11 to 12 year old students and their teacher were monitored for the whole school year, employing participant observation, and interviews with focus groups of students, their teacher and other key members of the school. Analysis focused on how students perceived the role of the teacher's pedagogy in constructing a learning environment that they considered conducive to engagement with science learning. Two areas of the teacher's pedagogy are explored from the student perspective of how these affect their learning: instructional pedagogy and relational pedagogy. Instructional pedagogy captures the way the instructional dialogue developed by the teacher drew the students into the learning process and enabled them to "understand" science. How the teacher developed a relationship with the students is captured as relational pedagogy, where students said that they learned better when teachers were passionate in their approach to teaching, provided a supportive learning environment and made them feel comfortable. The ways in which the findings support the direction for the middle years and science education are considered. © Springer 2005.
- Description: C1
- Description: 2003001317
Science teachers' understanding of the college entrance examination in a climate of national curriculum reform in China
- Authors: Ma, Hongming
- Date: 2013
- Type: Text , Book chapter
- Relation: Valuing Assessment in Science Education: Pedagogy, Curriculum, Policy p. 183-205
- Full Text: false
- Reviewed:
- Description: In China, the College Entrance Examination (CEE) is often likened to a conductor’s baton in that it directs and controls almost every every decision-making in the educational system. The positive or negative impact of CEE on the development of individual student and society as a whole has been much debated. In the absence of a fairer selection mechanism for college entrance, the long-time dominant CEE has led to an unspoken consequence of Chinese educational practice—‘education for examination’. CEE is, without doubt, the most influential factor that shapes teachers’ pedagogical practice. However, few discussions go into detail about what values promoted by CEE are reflected in teachers’ pedagogical practice. This chapter reviews a body of literature about strategies suggested by secondary school science teachers in dealing with CEE and identifies the connection between these strategies and the values advocated by the science curriculum standards. The discussion will be in relation to the current reform in China’s educational system which promotes quality-oriented education. This reform echoes the trend in many English-speaking countries which values education for not only knowledge but also process and attitudes.
Scientific evidence is just the starting point : A generalizable process for developing sports injury prevention interventions
- Authors: Donaldson, Alex , Lloyd, David , Gabbe, Belinda , Cook, Jill , Young, Warren , White, Peta , Finch, Caroline
- Date: 2016
- Type: Text , Journal article
- Relation: Journal of Sport and Health Science Vol. 5, no. 3 (2016), p. 334-341
- Relation: http://purl.org/au-research/grants/nhmrc/1058737
- Relation: http://purl.org/au-research/grants/nhmrc/565907
- Full Text:
- Reviewed:
- Description: Background: The 2 most cited sports injury prevention research frameworks incorporate intervention development, yet little guidance is available in the sports science literature on how to undertake this complex process. This paper presents a generalizable process for developing implementable sports injury prevention interventions, including a case study applying the process to develop a lower limb injury prevention exercise training program (FootyFirst) for community Australian football. Methods: The intervention development process is underpinned by 2 complementary premises: (1) that evidence-based practice integrates the best available scientific evidence with practitioner expertise and end user values and (2) that research evidence alone is insufficient to develop implementable interventions. Results: The generalizable 6-step intervention development process involves (1) compiling research evidence, clinical experience, and knowledge of the implementation context; (2) consulting with experts; (3) engaging with end users; (4) testing the intervention; (5) using theory; and (6) obtaining feedback from early implementers. Following each step, intervention content and presentation should be revised to ensure that the final intervention includes evidence-informed content that is likely to be adopted, properly implemented, and sustained over time by the targeted intervention deliverers. For FootyFirst, this process involved establishing a multidisciplinary intervention development group, conducting 2 targeted literature reviews, undertaking an online expert consensus process, conducting focus groups with program end users, testing the program multiple times in different contexts, and obtaining feedback from early implementers of the program. Conclusion: This systematic yet pragmatic and iterative intervention development process is potentially applicable to any injury prevention topic across all sports settings and levels. It will guide researchers wishing to undertake intervention development.
- Description: Background: The 2 most cited sports injury prevention research frameworks incorporate intervention development, yet little guidance is available in the sports science literature on how to undertake this complex process. This paper presents a generalizable process for developing implementable sports injury prevention interventions, including a case study applying the process to develop a lower limb injury prevention exercise training program (FootyFirst) for community Australian football. Methods: The intervention development process is underpinned by 2 complementary premises: (1) that evidence-based practice integrates the best available scientific evidence with practitioner expertise and end user values and (2) that research evidence alone is insufficient to develop implementable interventions. Results: The generalizable 6-step intervention development process involves (1) compiling research evidence, clinical experience, and knowledge of the implementation context; (2) consulting with experts; (3) engaging with end users; (4) testing the intervention; (5) using theory; and (6) obtaining feedback from early implementers. Following each step, intervention content and presentation should be revised to ensure that the final intervention includes evidence-informed content that is likely to be adopted, properly implemented, and sustained over time by the targeted intervention deliverers. For FootyFirst, this process involved establishing a multidisciplinary intervention development group, conducting 2 targeted literature reviews, undertaking an online expert consensus process, conducting focus groups with program end users, testing the program multiple times in different contexts, and obtaining feedback from early implementers of the program. Conclusion: This systematic yet pragmatic and iterative intervention development process is potentially applicable to any injury prevention topic across all sports settings and levels. It will guide researchers wishing to undertake intervention development. (C) 2016 Production and hosting by Elsevier B.V. on behalf of Shanghai University of Sport.
SCOPE 09 Exhibition
- Date: 2009
- Type: Text , Visual art work
- Full Text: false
- Description: Scope '09 Staff Survey show produced by University of Ballarat
SCOPE 12 Exhibition
- Date: 2012
- Type: Text , Visual art work
- Full Text: false
- Description: Scope 012 Exhibition, 28th February - 24th March 2012 at Post Office Gallery, Ballarat. University of Ballarat, Arts Academy Visual Arts staff and research students exhibition with works by Phillip Berry, Claire Blake, Wendy Bolger, Loris Button, Neville French, Trudi Harley, Alistair Heighway, Debbie Hill, Paul Lambeth, Duncan Lannan, Rosalind Lawson, Sally Miller, Vikki Nash, Jimmy Pasakos, Anthony Pelchen, Peter Pilven, Cameron Ross, Ewen Ross, Chrissie Smith, Louise Tomlinson and Carole Wilson. The exhibition showcased a broad range of themes and ideas and demonstrated wide-ranging, specialist, technical and conceptual skills and knowledge across a broad range of disciplines including painting, drawing, photography, design, ceramics and printmaking.
SCOPE 13 Exhibition
- Date: 2013
- Type: Text , Visual art work
- Full Text:
- Description: Scope 13 Exhibition (Curator, Shelly Hinton), Wednesday 20th February - Saturday 23rd March 2013 at Post Office Gallery, Ballarat. University of Ballarat, Arts Academy Visual Arts staff, Research Associates and candidates showcase their recent work in the Gallery's annual survey exhibition showcasing a broad range of themes and ideas across a range of media including painting, drawing, photography, sculpture, design, ceramics and printmaking. List of artists includes Rhonda Baum, Phillip Berry, Loris Button, Stephen Davidson, Frances Deutsche, Debbie Hill, Cody Joy, Ben Mangan, Paul Mah, Vikki Nash, Jill Orr, Jimmy Pasakos, Laraine Peters, Peter Pilven, Ewen Ross, Chrissie Smith, Geoff Wallis and Carole Wilson
SCOPE 14 Exhibition
- Date: 2014
- Type: Text , Visual art work
- Full Text: false
- Description: To be opened by Associate Professor Jennifer Jones-O'Neill, Deputy Dean Arts, Humanities and Social Sciences, Faculty of Education and Arts, Federation University on Thu 20 Feb @ 5.30, for 6pm, at the Post Office Gallery, Ballarat. The Post Office Gallery's very popular annual survey exhibition will showcase practicing contemporary artists who are lecturers or Research Associates of the Arts Academy, Ballarat and for the first year Visual Arts lecturers at Gippsland campus in the mix!. Artists include Lisa Anderson, Rosalind Atkins (& Ex de Medici), Phil Berry, Loris Button, Graeme Drendel, Rodney Forbes, Alister Heighway, Debbie Hill, Julian Holcroft, Paul Mah, Ben Mangan, Sanne Mestrom, Jill Orr, Jimmy Pasakos, Peter Pilven, Susan Purdy, Ewen Ross and Carole Wilson.
SCOPE 15 Exhibition
- Date: 2015
- Type: Text , Visual art work
- Full Text: false
- Description: 4th February - 7th March 2015 SCOPE15 was opened by Associate Professor Jennifer Jones-O'Neill, PhD, Head, School of Arts, Humanities and Social Sciences, Faculty of Education and Arts, Federation University Australia, on Thu 5 Feb. In the Post Office Gallery's important annual visual arts exhibition, 2015 SCOPE presented a rich cross-section of work by practicing visual artists who lectured in the visual arts in art history, painting, drawing, graphic design, printmaking and ceramics at the Arts Academy or undertook significant roles as visual arts research associates. Image: Jill Orr The Promised Land – Moving, 2012/13 70cm (h) x 105 cm (w) photograph Courtesy the artist and Jenny Port Gallery
Scope 16 Exhibition
- Authors: Anderson, Lisa , Button, Loris , Hill, Debbie , Lofts, Debbie , Mah, Paul , Mangan, Ben , Orr, Jill , Pasakos, James , Pilven, Peter , Smith, Chrissy , Wilson, Carole
- Date: 2016
- Type: Text
- Full Text: false
- Description: 3rd February - 5th March 2016 SCOPE, FedUni's Arts Academy important annual exhibition showcases an inspired and rich mix of accomplished work by visual arts staff, research associates and associate and adjunct professors. The exhibition highlights the staff's ongoing commitment to a sustained, rigorous art practice across a broad range of approaches and media including ceramics, painting, photography, design, drawing and printmaking. While the exhibition offers a great opportunity for staff to present their more recent works, which extend notions of contemporary art, new and returning visual arts students are able to view work created by key visual arts lecturers. Image: Peter Pilven Psycho Santa, 2015 digital print on paper 600 x 700mm Courtesy the artist
SCOPE 17 Exhibition
- Date: 2017
- Type: Text , Visual art work
- Full Text: false
- Description: 15 February - 5th March 2017, SCOPE, FedUni's Arts Academy important annual exhibition showcases an inspired and rich mix of accomplished work by visual arts staff, research associates and associate and adjunct professors. The exhibition highlights the ongoing commitment to a sustained, rigorous art practice across a broad range of approaches and media by staff working in ceramics, painting, photography, design, drawing and printmaking. While the exhibition offers a great opportunity for staff to present their more recent works which extend notions of contemporary art, new and returning visual arts students are able to view work created by key visual arts lecturers.
SCOPE 18 Exhibition
- Date: 2018
- Type: Text , Visual art work
- Full Text: false
- Description: 8th February - 10th March 2018, SCOPE, FedUni Arts Academy's important annual exhibition showcases accomplished work by Visual Arts lecturers, teachers, Research Associates, Associate and Adjunct Professors and Research Fellows. The exhibition not only celebrates artists who sustain an ongoing rigorous art practice but also reflects excellence in a art in broad range of media, approaches and styles, achieved through rigour and dedicated research by each of the exhibiting artists. Image: Gay Pride Week, Melbourne, 1973. Photograph by Frank Prain. Featured in the film ‘Out of the Closets, Into the Streets’ by Wind & Sky Productions, 2016. Image courtesy of the Australian Lesbian and Gay Archives.
SCOPE 19 Exibition
- Date: 2019
- Type: Text , Visual art work
- Full Text: false
- Description: 15th February - 9th March 2019, SCOPE, FedUni School of Arts' important annual exhibition, showcases accomplished work by Visual Arts lecturers, teachers, Research Associates, Associate and Adjunct Professors, and Research Fellows. Artists include; Lisa Anderson, Loris Button, Annette Chappell, Lucinda Horrocks & Jary Nemo (Wind & Sky Productions), Paul Mah, Ben Mangan, Jill Orr, Jimmy Pasakos, Kim Percy, Peter Pilven, Pitcha Makin Fellas (Ted Laxton, Thomas Marks, Adrian Rigney, Peter-Shane Rotumah), Vin Ryan, Chrissie Smith, Elke Varga and Carole Wilson. This exhibition not only celebrates artists who sustain an ongoing rigorous art practice but also reflects excellence across a broad range of media, approaches and styles, achieved through an ongoing dedicated research process. Image: Carole Wilson, The Johnston Collection Mirror - Chintz 2, 2018, hand cut and stitched maps on paper, H80 x W55cm. Courtesy the artist.
SCOPE 20 Exhibition
- Authors: Button, Loris , Horrocks, Lucinda , Nemo, Jary , Wind & Sky Productions , Mah, Paul , Orr, Jill , Pasakos, Jimmy , Percy, Kim , Pilven, Peter , Fellas, Pitcha Makin , Laxton, Ted , Edgeley, Trudy , Rigney, Adrian , Varga, Elke , Williams, Morgan , Wilson, Carole
- Date: 2020
- Type: Text , Visual art work
- Full Text: false
- Description: SCOPE20: ARTS ACADEMY VISUAL ARTS LECTURERS, TEACHERS AND HONORARIES FRI 21 FEB – SAT 7 MAR 2020 Please join us for the exhibition opening, with remarks by Associate Professor Rick Chew, Director, Arts Academy, Federation University Australia @ 5:30 for 6pm on Thu 20 Feb 2020. All welcome! Loris BUTTON, Lucinda HORROCKS & Jary NEMO, Paul MAH, Jill ORR, Jimmy PASAKOS, Kim PERCY, Peter PILVEN, PITCHA MAKIN FELLAS, Elke VARGA, Morgan WILLIAMS, Carole WILSON In the Arts Academy’s important annual exhibition, SCOPE presents a diverse selection of works on paper, video, ceramics, printmaking, painting and design, by Visual Arts lecturers, teachers, Research Associates, Associate and Adjunct Professors and Research Fellows who, as artists, also sustain a rigorous artistic research and/or teaching practice at Federation University's School of Arts. Participating artists present work across disciplines including drawing, painting, photography, performance art, video, ceramics, textiles and printmaking. Presenting works of beauty and contemplation alongside the real and unsettling, participating artists express complex ideas related to fact and fiction, identity, empathy, politics and global unrest, as well as climate change, Indigenous art and cultural appropriation. Image: Wind & Sky Productions & Chris Hayward, Collections and Climate Change, 2019 Video: 9.01 mins. Courtesy the artists
SCOPE 21 Exhibition
- Date: 2021
- Type: Text , Artwork , Visual art work
- Full Text: false
- Description: SCOPE21 30 JUN - 16 JUL 2021 An important Arts Academy annual exhibition, SCOPE 2021 presents new work by lecturers, teachers, research associates and research fellows who, as artists also sustain a rigorous research and/or teaching practice at Federation University, and whose work expresses complex ideas related to fact and fiction, empathy, politics and global unrest, as well as ideas surrounding Indigenous art and iconography. Image: Elke Varga Temple Flags, 2020 acrylic on canvas 3 x (25 x 25cm) Courtesy the artist
Scope 22 Exhibition
- Date: 2022
- Type: Text , Artwork , Visual art work
- Full Text: false
- Description: SCOPE22: ARTS ACADEMY LECTURERS, TEACHERS & HONORARIES WED 2 MAR - FRI 1 APR 2022 Sharon ANDERSON, Jason GRACE, Wendy HABRAKEN-FLACK, Paul MAH, Jill ORR, Jimmy PASAKOS, Kim PERCY, Jenny PETERSON, PITCHA MAKIN FELLAS, Julie REED HENDERSON, Chrissie Louise SMITH, Elke VARGA, Anthea WILLIAMS, Carole WILSON, WIND & SKY PRODUCTIONS. An important Arts Academy annual exhibition, SCOPE showcases new work by lecturers, teachers, research associates and research fellows from the University's Gippsland and Ballarat campuses, who, as educators and researchers at Federation University, also sustain an ongoing rigorous artistic practice. Image: Kim Percy Mama Manna Gum, 2021 digital photograph on paper H32 x W20cm Courtesy the artist
Scope 23 Exhibition
- Date: 2023
- Type: Text , Artwork , Visual art work
- Full Text: false
- Description: SCOPE23: ARTS ACADEMY LECTURERS & ARTISTS-IN-RESIDENCE WED 5 APR - FRI 28 APR 2023 Sharon ANDERSON Koji HOASHI Jo MOTT Jill ORR Jimmy PASAKOS PITCHA MAKIN FELLAS Julie REED HENDERSON Kim PERCY Vin RYAN Elke VARGA Anthea WILLIAMS Carole WILSON An important annual Federation University Arts Academy exhibition, this year SCOPE showcases highly skilled work created by Visual Art lecturers and artists-in residence, based at Ballarat and Gippsland campus, who sustain an ongoing rigorous artistic practice across a broad range of disciplines including ceramics, painting, printmaking, sculpture, performance art, drawing and digital media. Image: Julie Reed Henderson geo/bio/eco/socio lo-res stammer and wend, 2023 (detail) scourers, rock, leather, silicon, cotton thread, plastic, paper on felt, neon in acrylic box H65cm x W80cm x D10cm Courtesy the artist
Scope of practice for Australian enrolled nurses: evolution and practice issues
- Authors: Jacob, Elisabeth , Barnett, Anthony , Sellick, Kenneth , McKenna, Lisa
- Date: 2013
- Type: Text , Journal article
- Relation: Contemporary Nurse Vol. 45, no. 2 (2013), p. 155-163
- Full Text: false
- Reviewed:
- Description: Significant changes to the scope of practice for enrolled nurses have occurred in Australia over the past decade. These changes, which are largely a consequence of staff shortages and economic pressure, have resulted in increased role confusion and overlap between enrolled and registered nurses in Australia. This paper presents a brief history of the enrolled nurse in Australia followed by an overview of the current situation and emerging trends in the education and employment of these nurses. Definitions and approaches to scope of practice are described and emerging issues within Australia raised and discussed. A review of the literature found the number of enrolled nurses and the roles they perform have changed significantly in Australia following the introduction of the enhanced scope of practice. Further research is required to better define and delineate between the different nursing roles and to explore broader frameworks to analyze, describe and define these roles. Read More: http://pubs.e-contentmanagement.com/doi/abs/10.5172/conu.2013.45.2.155