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Mann S.,Otago Polytechnic | Costello K.,Otago Polytechnic | Lopez M.,CPIT | Lopez D.,CPIT | Smith N.,Auckland University of Technology
ICT for Sustainability 2014, ICT4S 2014 | Year: 2014

A key focus in transforming the profession of ICT to one of contributing to a sustainable future is the education of students who may think and act as sustainable practitioners in computing. An important understanding in this is the relationship between ethics and sustainability in the student intake. This forms a baseline upon which higher education can build. It is argued that sustainability can be considered ethics expanded in time and space but it is not previously known if an ethical understanding relates to an ecological worldview or to desires for contributing to sustainability. This paper reports on a survey of the first year intake of a New Zealand polytechnic (n=52) and explores the link between ethics and sustainability in freshman students in their first week of higher education. A measure of ethical naivety was constructed based on standard measures of naive ethics (legalism, egoism, agency and relativism), the responses to this were compared to the standard measure of ecological worldview, the New Environmental Paradigm. The implications for education for ICT4S are discussed. © 2014. The authors.

Bigwood T.,Institute of Environmental Science and Research Ltd ESR | Bigwood T.,University of Canterbury | Hudson J.A.,Institute of Environmental Science and Research Ltd ESR | Cooney J.,Institute of Environmental Science and Research Ltd ESR | And 5 more authors.
Food Microbiology | Year: 2012

Two bacterial isolates with inhibitory activity against Listeria monocytogenes and Enterococcus faecalis were obtained from soil. Genotypic and phenotypic characterization identified them as Enterococcus mundtii, a species whose ability to compete with L. monocytogenes is relatively unexplored compared to other members of the genus. The thermal stability of the inhibitory factor and its sensitivity to proteolytic enzymes indicate that it is most likely a bacteriocin. Both isolates grew at comparable rates to L. monocytogenes at 5 °C and 10 °C in vitro. One isolate killed L. monocytogenes when it reached concentrations of 106-108 CFU ml-1. Minimum inocula of 106 and 105 CFU ml-1 of E. mundtii were required to reduce and maintain L. monocytogenes concentrations beneath the level of detection at 5 °C and 10 °C, respectively. In situ experiments at 5 °C showed that E. mundtii inhibited the growth of L. monocytogenes on vacuum-packed cold smoked salmon during its four week shelf life. E. mundtii could, therefore, control the growth of L. monocytogenes at low temperatures, indicating a potential application in controlling this pathogen in chilled foods. To control growth of Listeria, the concentration of E. mundtii needs to be high, but it is possible that a purified bacteriocin could be used to achieve the same effect. © 2012 Elsevier Ltd.

Asgarkhani M.,CPIT | Sitnikova E.,University of South Australia
European Conference on Information Warfare and Security, ECCWS | Year: 2014

The internet was started as an open distributed system for researchers and academics without much concern for cyber security related issues. However, it gradually evolved into a complex network as a platform for connectivity of businesses and communities across the world. Today, the Internet not only brings together businesses and communities but also hosts complex electronic and engineering systems (such as Supervisory Control and Data Acquisition - SCADA - systems) deployed to manage critical infrastructures. The Internet has become the transporting method for high volume of critical information worldwide. Securing sensitive information and safe-guarding operations of critical infrastructure management systems is a worldwide preoccupation. SCADA systems are put in place worldwide to manage not only critical infrastructures but also complex operations that play a vital role in managing scarce natural resources and the environment. This paper examines research on both SCADA systems and Internet security and provides an overview of key issues and recommends a strategy framework for protection of SCADA systems.

Asgarkhani M.,CPIT | Sitnikova E.,University of South Australia
Proceedings of the European Conference on e-Government, ECEG | Year: 2014

Advancement of Information Technology (IT) solution including mobile and Internet technologies (e-Technologies) have become a catalyst for enabling the public sector to achieve improved service delivery by introducing technology-enabled solutions into processes and reforming the management and delivery of services. In the beginning, reform in the public sector services via use of IT was limited to empowering citizens to initiate and receive services online. It was also used to improve business processes within public sector organizations. However, the concept of e-Governance can potentially evolve to integrate sophisticated IT systems for improved effectiveness in management of critical natural resources. Supervisory Control and Data Acquisition (SCADA) systems have been deployed worldwide in many critical infrastructures including power generation, water distribution systems, public transport and industrial manufacturing systems. SCADA systems not only support many aspects of our day to day lives but also are critical to our well-being and the very existence of our economy. Connecting SCADA to the Internet has made it possible to introduce a new generation of e-Government strategies and systems. This paper surveys previous research and provides a coherent overview of the role of SCADA systems in e-Government. © 2014 The Authors.

Harris G.,CPIT | Muir L.,Safe Air | Pons D.,University of Canterbury
Proceedings of IEEE International Conference on Teaching, Assessment and Learning for Engineering: Learning for the Future Now, TALE 2014 | Year: 2015

Discussion of an Engineering Master's Thesis of a novel rotating engine along with a case study on the benefits of relationship of Engineering Industry with academia. © 2014 IEEE.

Daellenbach R.,CPIT | Davies L.,CPIT | Kensington M.,CPIT | Tamblyn R.,CE Ocean Browser
Proceedings of ASCILITE 2014 - Annual Conference of the Australian Society for Computers in Tertiary Education | Year: 2014

The School of Midwifery at CPIT in Christchurch is undertaking an action research study on midwifery students and blended learning that commenced in 2010. This paper focusses on one aspect of this research which is the student's experience of social isolation whilst working through the online component of the blended delivery. In response the teaching team initiated an intervention as a result, and replaced the existing content authoring software tool with a system that enables students to engage and interact with each other more effectively. We subsequently adopted the OB3 web application which has ameliorated this problem to a large extent. This paper sets out to explain why the OB3 web application was chosen and what effect this has had in terms of the student's learning and the educators' teaching experiences.

Irwin D.,CPIT | Straker J.,CPIT
Australian Journal of Environmental Education | Year: 2014

The relationship between outdoor education and environmental education in Aotearoa New Zealand has undergone many changes since formal education began in early colonial times. Discussion draws from qualitative doctoral research undertaken by the authors that investigated education for sustainability in outdoor education and how meaning is ascribed to outdoor experiences. The article describes how environmental education and outdoor education had common historical roots in nature studies that eventually were teased apart by the development of separate agendas for learning and assessment, coupled with the political context of the 1970s and 1980s. The article finds that contemporary forces relating to the economy, society and the environment are now driving a re-engagement of the two discourses in Aotearoa New Zealand at a variety of levels, from schools to national bodies, and that this re-engagement signals a positive outcome for addressing key environmental issues and engaging students in the outdoors. © 2015 The Author(s).

Cronje T.F.,CPIT | Gaynor P.T.,University of Canterbury
2013 Australasian Universities Power Engineering Conference, AUPEC 2013 | Year: 2013

This paper describes a novel design of a high voltage, high frequency, bipolar pulse generator, for experimental use in electrochemotherapy and irreversible electroporation, using RF MOSFETs (DE375-102N12A) in a cascaded multilevel inverter topology. Its pulsing regime is fully programmable and is con-trolled by an FPGA. A systematic development approach was followed. The UCC37321 gate driver and the HCPL-2400 opto-coupler were selected. Damping resistors and RCD snubbers were employed to mitigate excessive ringing in the output circuit. Practical EMC reduction guidelines were followed. The pulse generator operated satisfactorily, producing a typical cascaded 5-level output of 1250 V peak at 1 MHz into a load of 80 ohm in parallel with 235 pF. Higher room temperature caused a slight 'indent' into the output pulses. © 2013 Australasian Committee for Power Engineering (ACPE).

Massie A.,CPIT | Watson N.R.,University of Canterbury
Bulletin of the New Zealand Society for Earthquake Engineering | Year: 2011

This paper gives a brief summary of the performance of the electrical infrastructure in the earthquakes that struck Christchurch and surrounding regions in 2011, with particular reference to the 22 February 2011 earthquake which was the most devastating.

PubMed | CPIT
Type: Case Reports | Journal: The New Zealand medical journal | Year: 2012

Pancreatic duct stones are found in 22 to 60% of patients with chronic pancreatitis (CP). The stones can lead to obstruction of the outflow of pancreatic secretions causing increased intraductal pressure. The pancreas is relatively noncompliant. Therefore the rise in intraductal pressure can induce tissue hypertension and ischemia. This can be a major factor causing pain in patients with CP. This hypothesis is supported by the observation that symptoms may improve following pancreatic duct drainage.A 62-year-old woman presented with persistent epigastric pain. Investigations revealed calcifications within the main pancreatic duct and head of the gland. Treatment with endoscopic retrograde cholangiopancreatography (ERCP) and extracorporeal shock wave lithotripsy (ESWL) achieved a good outcome.Standard endoscopic removal of the stones proved impossible so treatment with ESWL was undertaken. Following fragmentation, the calculi and fragments passed spontaneously or were removed endoscopically. If pancreatic stones cannot be removed endoscopically, ESWL should be considered prior to surgery.

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