List of Titles

Developing a Multi Platform Countermeasure to Ensure a Secure Home

Authors: Frieslaar, Ibraheem , Irwin, Barry V W
Date: 2016
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/427772 , vital:72461 , https://www.researchgate.net/profile/Ibraheem-Fries-laar/publication/312219190_Developing_a_Multi_Platform_Countermeasure_to_Ensure_a_Secure_Home/links/587747d508ae8fce492fb5e2/Developing-a-Multi-Platform-Countermeasure-to-Ensure-a-Secure-Home.pdf
Description: This research proposes an investigation into the side channel analysis attacks against the AES algorithm on high powered devices. Currently the research field into this aspect is fairly new and there is room for more information to be discovered. This research proposes using a Raspberry Pi in conjunction with a Software Defined Radio to capture electromagnetic emanations in the low and high frequency domains. Two well-known side channel attacks will be used to recover the secret information based on the electromagnetic emanations. Furthermore, this research proposes investigating into a possible software countermeasure by using the high-powered devices features such as multi-threading.
Full Text:
Date Issued: 2016

Global proliferation of cephalopods

- Doubleday, Zoë A, Prowse, Thomas A A, Arkhipkin, Alexander, Pierce, Graham J, Semmens, Jayson, Steer, Michael, Leporati, Stephen C, Lourenço, Sílvia, Quetglas, Antoni, Sauer, Warwick H H, Gillanders, Bronwyn M

Authors: Doubleday, Zoë A , Prowse, Thomas A A , Arkhipkin, Alexander , Pierce, Graham J , Semmens, Jayson , Steer, Michael , Leporati, Stephen C , Lourenço, Sílvia , Quetglas, Antoni , Sauer, Warwick H H , Gillanders, Bronwyn M
Date: 2016
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/124560 , vital:35628 , https://doi.10.1016/j.cub.2016.04.002
Description: Human activities have substantially changed the world’s oceans in recent decades, altering marine food webs, habitats and biogeochemical processes [1]. Cephalopods (squid, cuttlefish and octopuses) have a unique set of biological traits, including rapid growth, short lifespans and strong life-history plasticity, allowing them to adapt quickly to changing environmental conditions [2–4]. There has been growing speculation that cephalopod populations are proliferating in response to a changing environment, a perception fuelled by increasing trends in cephalopod fisheries catch [4,5]. To investigate long-term trends in cephalopod abundance, we assembled global time-series of cephalopod catch rates (catch per unit of fishing or sampling effort). We show that cephalopod populations have increased over the last six decades, a result that was remarkably consistent across a highly diverse set of cephalopod taxa. Positive trends were also evident for both fisheries-dependent and fisheries independent time-series, suggesting that trends are not solely due to factors associated with developing fisheries. Our results suggest that large-scale, directional processes, common to a range of coastal and oceanic environments, are responsible. This study presents the first evidence that cephalopod populations have increased globally, indicating that these ecologically and commercially important invertebrates may have benefited from a changing ocean environment.
Full Text:
Date Issued: 2016

Quick View

Knowledge-building: educational studies in Legitimation Code Theory

- Clarence, Sherran

Authors: Clarence, Sherran
Date: 2016
Language: English
Type: book review , text
Identifier: http://hdl.handle.net/10962/61300 , vital:28013 , http://dx.doi.org/10.1080/14703297.2016.1231751
Description: A challenge facing higher education researchers, especially those new to the craft of research, is that of moving between theory and data effectively in order to mediate research findings clearly to readers. For postgraduate students and academics publishing their research, working with data and designing effective and fit-for-purpose methodologies can be a challenge. Moreover, this is not necessarily an easy area for supervisors and research mentors to assist with. In addition to researchers, practitioners working in academic development also need ways of using research – either empirical or conceptual – to augment their work with lecturers to improve teaching and learning. There are many handbooks that detail the differences between qualitative, quantitative and mixed-methods research. There are many theoretical texts to choose from. But there are few texts that offer researchers and those mentoring researchers insight into how methodology and theory connect in research studies, as well as practical tools to navigate the chaos of research, bringing theory and data into conversation in relevant and problem-oriented ways that can influence practice effectively. Karl Maton, in his introduction to this edited collection, argues that in spite of many claims within educational and social research for the need to connect research with theory more effectively, ‘the two frequently remain divorced or, at best, not on speaking terms’ (p. 1). The central premise of the book flows from this: we need to move beyond calls for more theory-informed research into education and society towards generating ways of demonstrating enactments of research that bring theory and research together meaningfully. The need for the research we publish to make clear its theoretical and methodological underpinning and enactments is crucial for effecting sustainable and meaningful change in practice within the field. This text, located within the growing field of Legitimation Code Theory (LCT) research, within the broader field of sociology of education, takes a generous step in that direction. Building on Maton’s 2014 text, Knowledge and knowers. Towards a realist sociology of education, this text delves into how LCT concepts – particularly in the dimensions of Specialisation and Semantics – can be enacted within educational research and practice.
Full Text: false
Date Issued: 2016

Quick View

Hit them where it hurts-tackling Facebook's misogyny problem: journalism next

- Roux, Kayla

Authors: Roux, Kayla
Date: 2015
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/454745 , vital:75372 , https://hdl.handle.net/10520/EJC175783
Description: Whether you believe in the power of social networking for political par-ticipation or are cynical of the 'clicktivists' and their 'slacktivism', there's no denying it: social media politics have become an inescapable part of our digital lives. From online petitions and NGO fan pages to heated Twitter wars and politically-motivated hacking, the internet has opened up countless new avenues in which people can express their support for causes, lobby powerful interest groups, and register their dissent with a well-orchestrated hashtag or viral campaign. But what if one so-cial network becomes the site of the struggle? What about when our digital lives become the subject of our politics?
Full Text:
Date Issued: 2015

Quick View

Specific rewards for tax compliance: responses of small business owners in Ekurhuleni, South Africa

- Bornman, Marina, Stack, Elizabeth M

Authors: Bornman, Marina , Stack, Elizabeth M
Date: 2015
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/145325 , vital:38428 , https://heinonline.org/HOL/Page?handle=hein.journals/ejotaxrs13anddiv=35andg_sent=1andcasa_token=andcollection=journals
Description: The literature reviewed documents the positive effects of rewards in encouraging desired behaviour, but rewards may have a crowding-in effect, strengthening intrinsic motivation, or a crowding-out effect, weakening it. External interventions may therefore be perceived as supportive, fostering self-esteem and self-determination, while those perceived as controlling may have the opposite effect. A number of countries have adopted a strategy of rewarding tax compliance. The rewards range from certificates awarded to compliant taxpayers, to privilege cards providing opportunities for discounts or special treatment, to lotteries in which compliant taxpayers can participate. The reward strategies are often accompanied by publicity programmes. Two such hypothetical strategies were presented to participants in a survey conducted amongst small business owners in Ekurhuleni, South Africa, to gauge their responses.
Full Text:
Date Issued: 2015

Quick View

Relationship between soil alteration index three (AI3), soil organic matter and tree performance in a 'Cripps Pink/'M7 apple orchard

- Meyer, André H, Wooldridge, John, Dames, Joanna F

Authors: Meyer, André H , Wooldridge, John , Dames, Joanna F
Date: 2014
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/444038 , vital:74180 , https://hdl.handle.net/10520/EJC157392
Description: Alteration index three (AI3), which calculates the balances between three microbially-secreted enzymes, potentially enables differences between soils due to contrasting management practices to be quantified in relative terms. The ability of AI3 to distinguish between apple orchard soils under conventional and organic production protocols, and to reflect tree performance, were tested in a maturing 'Cripps Pink'/M7 apple orchard. Activities of β-glucosidase, phosphatase and urease were determined colourimetrically in extracts of tree-row top-soils (0-15 cm) taken during September and January over five consecutive seasons. Soil organic matter content was determined by dichromate oxidation. Stem circumference and yield were measured manually. AI3 correlated significantly (p = 0.05) with soil organic matter, yield and yield efficiency. AI3 may thus be a useful indicator of relative apple tree performance under organic and conventional soil surface management practices.
Full Text:
Date Issued: 2014

Quick View

Farewell to Lawrence Schlemmer: initiator of quality-of-life studies in South Africa

- Moller, Valerie

Authors: Moller, Valerie
Date: 2013
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/67175 , vital:29055 , https://doi.org/10.1007/s11205-011-9965-8
Description: publisher version , Professor Lawrence Schlemmer, affectionately known as Lawrie, was the father of South Africa’s quality-of-life studies and social indicators movement. He died on 26 October 2011 at the age of 75 after a short illness. In 1978, Lawrence marched into my office at the Centre for Applied Social Sciences, University of Natal, brandishing two books. We need to do some work on quality of life in South Africa, he announced, before handing me the volumes. At the time, South Africa’s leaders assumed that smiling black faces meant that South Africans were happy with their lot in life under apartheid. Our surveys were to prove otherwise. That weekend was spent reading cover to cover the classic works by Frank Andrews, Angus Campbell and their colleagues. The next week we pored over lists of concerns voiced by South Africans which we later put to test in the field. In 1982, we submitted our findings by ‘slug’ post to the editor of Social Indicators Research. We received a letter by return mail from Alex Michalos to say he would publish our paper and we should not be too disappointed with our regression results!
Full Text: false
Date Issued: 2013

Quick View

Valerie Møller: a pioneer in South African Quality of Life Research

- Moller, Valerie

Authors: Moller, Valerie
Date: 2013
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/67205 , vital:29059 , https://doi.org/10.1007/s11482-013-9249-3
Description: publisher version , Professor Valerie Møller is Professor Emeritus of Quality of Life Studies at Rhodes University, Grahamstown, South Africa. Before that she was director of the Institute of Social and Economic Research at Rhodes University (1998–2006) and headed the Quality of Life Research Unit at the University of KwaZulu-Natal, Durban, South Africa, in the 1990s. She completed her primary school education in North Carolina, USA, and her secondary and tertiary education in Zürich, Switzerland. She earned Lic. Phil and DPhil degrees from the University of Zürich, majoring in sociology. She has lived and worked in Southern Africa since 1972. Together with the late Professor Lawrence Schlemmer she developed the first survey instruments to measure objective and subjective well-being among South Africans from all walks of life. The South African Quality of Life Trends Study has tracked happiness and life satisfaction from apartheid to the transition to democracy (1983–2012).
Full Text: false
Date Issued: 2013

Quick View

Will and Wille Shakespeare on Love: The Sonnets and Plays in Relation to Plato's Symposium, Alchemy, Christianity and Renaissance Neo-Platonism, Ronald Gray: essays and reviews

- Wright, Laurence

Authors: Wright, Laurence
Date: 2013
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/455944 , vital:75469 , https://hdl.handle.net/10520/EJC128421
Description: Best known as the author of Kafka's Castle (1956) and a number of highly regarded works on Goethe and Brecht, Ronald Gray turns his attention to Shakespeare in a rich and succinct little book, developed from his earlier article "Will in the Universe: Shakespeare's Sonnets, Plato's Symposium, Alchemy and Renaissance neo-Platonism", which appeared in Shakespeare Survey 59 (2006). Works produced by senior intellects - Gray retired from Emmanuel College, Cambridge in 1982 - can sometimes spin sugar floss at unnecessary length, or else fling themselves recklessly at momentous questions without tact or scholarly measure. (Helen Gardner's unfortunate In Defence of the Imagination, 1982, would be an apposite illustration of the latter tendency.) Shakespeare on Love avoids both dangers, holding to its challenging thesis with admirable economy.
Full Text:
Date Issued: 2013

Showing items 21 - 40 of 666