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SADSAWU - International workers day

- SADSAWU

Authors: SADSAWU
Date: June 2012
Subjects: SADSAWU
Language: English
Type: text
Identifier: http://hdl.handle.net/10962/117975 , vital:34581
Description: A year has gone by, after the adoption of International Labour Organisation's (ILO) Convention 189 for Domestic Workers. We have worked so hard for nearly four years, to ensure that our work is recognised as decent work! On 16th June 2011 we made history when Convention 189 was adopted. In this year gone by, only one government has signed the ratification of Convention 189. We set ourselves a goal: We want at least 12 governments to sign, one each month as part of the international 12 to 12 Campaign with the International Trade Union Congress (ITUC) and International Domestic Workers' Network (IDWN). South Africa shcAild be the second government to sign and ratify 189, meaning it becomes labour law, as South Africa was the most supportive and vocal government leading the campaign for Convention 189 at the International Labour Conference.
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Date Issued: June 2012

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Service discovery using open sound control

- Eales, Andrew, Foss, Richard

Authors: Eales, Andrew , Foss, Richard
Date: 2012
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/426890 , vital:72398 , https://www.aes.org/e-lib/online/browse.cfm?elib=16432
Description: The Open Sound Control (OSC) control protocol does not have service discovery capabilities. The approach to adding service discovery to OSC proposed in this paper uses the OSC address space to represent services within the context of a logical device model. This model allows services to be represented in a context-sensitive manner by relating parameters representing services to the logical organization of a device. Implementation of service discovery is done using standard OSC messages and requires that the OSC address space be designed to support these messages. This paper illustrates how these enhancements to OSC allow a device to advertise its services. Controller applications can then explore the device‚Äôs address space to discover services and retrieve the services required by the application. The Open Sound Control (OSC) control protocol does not have service discovery capabilities. The approach to adding service discovery to OSC proposed in this paper uses the OSC address space to represent services within the context of a logical device model. This model allows services to be represented in a context-sensitive manner by relating parameters representing services to the logical organization of a device. Implementation of service discovery is done using standard OSC messages and requires that the OSC address space be designed to support these messages. This paper illustrates how these enhancements to OSC allow a device to advertise its services. Controller applications can then explore the device‚Äôs address space to discover services and retrieve the services required by the application.
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Date Issued: 2012

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Social recruiting: a next generation social engineering attack

- Schoeman, A H B, Irwin, Barry V W

Authors: Schoeman, A H B , Irwin, Barry V W
Date: 2012
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/428600 , vital:72523 , https://www.jstor.org/stable/26486876
Description: Social engineering attacks initially experienced success due to the lack of understanding of the attack vector and resultant lack of remedial actions. Due to an increase in media coverage corporate bodies have begun to defend their interests from this vector. This has resulted in a new generation of social engineering attacks that have adapted to the industry response. These new forms of attack take into account the increased likelihood that they will be detected; rendering traditional defences against social engineering attacks moot. This paper highlights these attacks and will explain why traditional defences fail to address them as well as suggest new methods of incident response.
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Date Issued: 2012

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STAT3 interacts directly with Hsp90:

- Prinsloo, Earl, Kramer, Adam H, Edkins, Adrienne L, Blatch, Gregory L

Authors: Prinsloo, Earl , Kramer, Adam H , Edkins, Adrienne L , Blatch, Gregory L
Date: 2012
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/165142 , vital:41212 , DOI: 10.1002/iub.607
Description: Heat shock protein 90 (Hsp90) functionally modulates signal transduction. The signal transducer and activator of transcription 3 (STAT3) mediates interleukin‐6 family cytokine signaling. Aberrant activation and mutation of STAT3 is associated with oncogenesis and immune disorders, respectively. Hsp90 and STAT3 have previously been shown to colocalize and coimmunoprecipitate in common complexes.
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Date Issued: 2012

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A framework for DNS based detection and mitigation of malware infections on a network

- Stalmans, Etienne, Irwin, Barry V W

Authors: Stalmans, Etienne , Irwin, Barry V W
Date: 2011
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/429827 , vital:72642 , 10.1109/ISSA.2011.6027531
Description: Modern botnet trends have lead to the use of IP and domain fast-fluxing to avoid detection and increase resilience. These techniques bypass traditional detection systems such as blacklists and intrusion detection systems. The Domain Name Service (DNS) is one of the most prevalent protocols on modern networks and is essential for the correct operation of many network activities, including botnet activity. For this reason DNS forms the ideal candidate for monitoring, detecting and mit-igating botnet activity. In this paper a system placed at the network edge is developed with the capability to detect fast-flux domains using DNS queries. Multiple domain features were examined to determine which would be most effective in the classification of domains. This is achieved using a C5.0 decision tree classifier and Bayesian statistics, with positive samples being labeled as potentially malicious and nega-tive samples as legitimate domains. The system detects malicious do-main names with a high degree of accuracy, minimising the need for blacklists. Statistical methods, namely Naive Bayesian, Bayesian, Total Variation distance and Probability distribution are applied to detect mali-cious domain names. The detection techniques are tested against sample traffic and it is shown that malicious traffic can be detected with low false positive rates.
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Date Issued: 2011

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African Languages And ICT Education

- Dalvit, Lorenzo, Murray, Sarah, Terzoli, Alfredo

Authors: Dalvit, Lorenzo , Murray, Sarah , Terzoli, Alfredo
Date: 2011
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/431166 , vital:72750 , https://www.scitepress.org/Papers/2011/33507/33507.pdf
Description: In South Africa, English plays a dominant role compared to African lan-guages in empowering domain. Better access to Education through the use of African languages is an object of heated debate. This paper shows that an intervention involving the use of an African language in the domain of ICT Education can change the attitudes of Black universi-ty students. The methodology used included a survey with preliminary and follow-up questionnaires and interviews and an intervention involv-ing the use of localised software and of an on-line glossary of computer terms translated, explained and exemplified in an African language (isiXhosa). This experience increased the support for the use of African languages as additional LoLT, even in the English-dominated field of study of Computer Science. This is an initial step towards promoting linguistic equality between English and African languages and social equality between their speakers.
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Date Issued: 2011

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Biphenyl sorption to different soil clay minerals

- Tandlich, Roman, Baláž, Štefan

Authors: Tandlich, Roman , Baláž, Štefan
Date: 2011
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/76869 , vital:30632 , https://doi.org/10.5897/AJAR10.1012
Description: Only limited information is available in the literature on the role of soil mineral surfaces in the sorption of hydrophobic organic pollutants. This knowledge gap is addressed through the assessment of biphenyl sorption to kaolinite, illite and bentonite; using the batch equilibration technique with incubations lasting 6 or 21 days at 28 ± 2°C in the dark [RT1]. Sorption of biphenyl onto kaolinite followed the Freundlich sorption isotherm, whereas linear sorption isotherms were observed on illite and bentonite [RT2]. The biphenyl sorption partition coefficient on kaolinite ranged from 0.1 to 9.1 cm3.g-1 after 6 days and no sorption was observed after 21 days. This could have been caused by a completely reversible sorption or a loss of binding capacity after 21 days [RT3]. The respective values of the biphenyl sorption partition coefficient on illite and bentonite ranged from 20.3 ± 0.3 to 120 ± 8 cm3.g-1.Sorption equilibrium on the internal clay surfaces was reached after 6 days, as indicated by the sorption data for illite and bentonite [RT4]. Access of biphenyl molecules to the internal clay surfaces is a function of the ionic strength of soil solution and the soil organic matter is the dominant site for biphenyl sorption after 6 to 21 days.
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Date Issued: 2011

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Incorporation of Ni(II)-dimethylglyoxime ion-imprinted polymer into electrospun polysulphone nanofibre for the determination of Ni(II) ions from aqueous samples

- Rammika, Modise, Darko, Godfrey, Torto, Nelson

Authors: Rammika, Modise , Darko, Godfrey , Torto, Nelson
Date: 2011
Language: English
Type: Article
Identifier: vital:6589 , http://hdl.handle.net/10962/d1004172
Description: Ni(II)-dimethylglyoxime ion-imprinted polymer (Ni(II)-DMG IIP) was encapsulated in polysulphone and electrospun into nanofibres with diameters ranging from 406 to 854 nm. The structures of the Ni(II)-DMG encapsulated-IIP nanofibre, non-imprinted encapsulated-polymer nanofibre and polysulphone nanofibre mats were observed by scanning electron microscopy and evaluated by infrared spectroscopy. Electrospinning increased the specific surface area of the Ni(II)-DMG encapsulated-IIP nanofibre mats, as was evidenced by the low masses of the Ni(II)-DMG encapsulated-IIP nanofibre mats used. The accuracy of the method was validated by analysing a custom solution of certified reference material (SEP-3); the concentration of Ni(II) obtained was close to the certified one. The limit of detection was found to be 4.0x10-4 μg∙mℓ−1 while the limit of quantification was found to be 1.2x10-3 μg∙mℓ−1. The recovery of Ni(II) achieved using the Ni(II)-DMG imprinted nanofibre mats in water samples was found to range from 83 to 89%, while that of non-imprinted nanofibre mats was found to range from 59 to 65%, and that of polysulphone from 55 to 62%.
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Date Issued: 2011

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Invasion of a headwater stream by non-native fishes in the Swartkops River system, South Africa

- Ellender, Bruce R, Weyl, Olaf L F, Swartz, Ernst R

Authors: Ellender, Bruce R , Weyl, Olaf L F , Swartz, Ernst R
Date: 2011
Subjects: To be catalogued
Language: English
Type: text , article
Identifier: http://hdl.handle.net/10962/446866 , vital:74566 , https://doi.org/10.1080/15627020.2011.11407477
Description: In South Africa, fishes in headwater streams are increasingly being threatened by non-native fish invasions. These invasions originate primarily from source populations in mainstream rivers and impoundments. In the Blindekloof stream, a Swartkops River headwater tributary, the non-native Micropterus salmoides was eradicated from the stream by conservation authorities in 1989. As a result of this eradication subsequent occurrences of non-native fishes are most likely a result of upstream invasions from the mainstream Swartkops River. The Blindekloof stream therefore provided a unique opportunity to investigate whether M. salmoides would reinvade after its removal in 1989 and if the more recently introduced Clarias gariepinus and Tilapia sparrmanii would invade the Blindekloof stream. During snorkel and electrofishing surveys four non-native species were recorded (M. salmoides, M. dolomieu, T. sparrmanii, C. gariepinus ).
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Date Issued: 2011

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