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Land Use Planning: ALP 313, July 2011

African Reading of the Hebrew Bible: THB 313

  • Authors: Oosthuizen, R , Snyman, S D
  • Date: 2011-06
  • Language: English
  • Type: Examination paper
  • Identifier: vital:18162 , http://hdl.handle.net/10353/d1011096
  • Description: African Reading of the Hebrew Bible: THB 313, June 2011.
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  • Date Issued: 2011-06

Basic Chemistry: PAC 113F

  • Authors: Soyaya, S.M , Mbentse, J Z
  • Date: 2011-06
  • Language: English
  • Type: Examination paper
  • Identifier: vital:17834 , http://hdl.handle.net/10353/d1010388
  • Description: Basic Chemistry: PAC 113F, supplementary degree examination June 2011.
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  • Date Issued: 2011-06

A comparison of three techniques for fluorochrome marking of juvenile Clarias gariepinus otoliths

  • Authors: Wartenberg, Reece , Booth, Anthony J , Weyl, Olaf L F
  • Date: 2011
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/123520 , vital:35450 , https://doi.10.3377/004.046.0119
  • Description: African sharptooth catfish, Clarias gariepinus (Burchell 1822), is widely distributed with a natural range that extends from southern Turkey to the Orange River, South Africa (Skelton 2001). In addition to translocations within its southerly range (Cambray 2003), Cambray (2005) noted that as a result of poor aquaculture practices and introductions from a number of unknown sources, C. gariepinus has now invaded South America, Europe, Asia, and Australia. Its life history characteristics include a fast growth rate to a maximum length of 1300mmtotal length (TL) (Bruton 1976), a high fecundity, an omnivorous diet and the ability to breathe air (de Moor & Bruton 1988; Cambray 2003). Understanding the biology and population dynamics of this invader would assist in its management and possibly eradication.
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  • Date Issued: 2011

A Framework for the Management of Operator Policies and User Preferences for Service Compositions in the IP Multimedia Subsystem

  • Authors: Tsietsi, Mosiuoa , Terzoli, Alfredo , Wells, George C
  • Date: 2011
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/430680 , vital:72708 , https://ieeexplore.ieee.org/abstract/document/6032212
  • Description: The IP Multimedia Subsystem (IMS) is a telecommunication middleware platform with robust service features that enables the delivery of a wide range of services to mobile network subscribers. Network operators are encouraged to develop services from service building blocks in order to avoid redundancies by re-using existing functionality. In this environ-ment, operators must be able to control the service execution chain in order to prevent undesirable interactions from occurring between indi-vidual building blocks. It is also in their interests to provide subscribers with personalisation options so that they can modify service composi-tions and define their own preferences for how they would like their ser-vices to behave during live sessions. This paper describes a solution for these challenges that involves the storage of service information in an XDMS and allows operator staff and subscribers to manage this in-formation using the XCAP protocol. The ETSI-defined XCAP applica-tion usage named simservs was chosen to demonstrate an application usage that can be used to create service compositions in XML format. A prototype is described that uses components of the open source Mo-bicents project to verify the suitability of the design. This work is part of a larger effort aimed at modeling interaction management in the IMS through the use of a service broker that is part of an extended IMS ser-vice layer (EISL). The service broker's functional and structural architec-ture have not yet been standardised.
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  • Date Issued: 2011

Comfortably numb: Crump unveiled—a review of the 2011 Alan Crump retrospective exhibitio

  • Authors: Cooper, Paul S
  • Date: 2011
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/147924 , vital:38685 , DOI:10.1080/00043389.2011.11877152
  • Description: Writing can at times be difficult. It is not without considerable anxiety that I undertake to write this particular review. Perhaps I should offer a short qualifier: this is not strictly a review but rather a collection of ideas around the works and their arrangement, as well as my own musings and reflections on Crump. I want to pick up on what I identify to be an approach that personalises Crump as a professor, colleague and artist (we find this tone embedded throughout the accompanying exhibition catalogue). 1 I have chosen to structure this essay using a series of trigger headings, some provocative and possibly even inflammatory, others more neutral and concerned with getting to the core of what this retrospective and posthumous show is all about. All the while my thinking is to channel a sense (or lack thereof, as it may turn out) of my own experience of his work and person.
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  • Date Issued: 2011

Elucidation of the complex Baylis-Hillman reaction of 3-methoxy-2-nitrobenzaldehyde with methyl vinyl ketone

  • Authors: Idahosa, Kenudi C , Molefe, Duduzile M , Pakade, Vusumzi E , Brown, Michael E
  • Date: 2011
  • Language: English
  • Type: Article
  • Identifier: vital:6574 , http://hdl.handle.net/10962/d1004137
  • Description: DABCO-catalyzed reaction of 3-methoxy-2-nitrobenzaldehyde with methyl vinyl ketone (MVK) affords a mixture of products, comprising the ‘normal’ Baylis-Hillman adduct, theMVKdimer and a pair of diastereomeric bis-(MVK)Baylis-Hillman adducts. 1HNMRspectroscopy-based kinetic studies have provided clear insights into the competing pathways and product distribution in this complex reaction.
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  • Date Issued: 2011

Evaluation of the kinetics and mechanism of drug release from Econazole nitrate nanosponge loaded Carbapol Hydrogel

  • Authors: Sharma, Renuka , Walker, Roderick B , Pathak, Kamla
  • Date: 2011
  • Language: English
  • Type: text , Article
  • Identifier: vital:6437 , http://hdl.handle.net/10962/d1006614
  • Description: The objective of this study was to investigate the mechanism of release of econazole nitrate (EN) nanosponges loaded hydrogel and to compare it with EN hydrogel so as to develop an extended release topical drug delivery system of EN. Nanosponges of EN were prepared using ethyl cellulose and PVA by emulsion solvent evaporation method. On the basis of pharmacotechnical evaluation nanosponges with least particle size of 230.1 nm and good rheological properties were formulated as hydrogel (F1 – F7). In vitro drug release data of EN nanosponges loaded hydrogels in phosphate buffer pH 6.8 and 7.4 when analysed by GraphPad Prism software version 4.0 San Diego, USA best fitted the Makoid-2 Banakar model (R value greater than 0.98). The Korsmeyer-Peppas release exponent (n) ranged between 0.331 – 0.418, which confirmed diffusion as the principle mechanism of drug release. The release mechanism was further confirmed by calculating the ratio of exponents A/B ratio derived from the Kopcha model.
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  • Date Issued: 2011

First assessment of estuarine space use and home range of juvenile white steenbras, Lithognathus lithognathus

  • Authors: Bennett, Rhett H , Childs, Amber-Robyn , Cowley, Paul D , Næsje, T F , Thorstad, Eva B , Økland, F
  • Date: 2011
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/447517 , vital:74653 , https://doi.org/10.1080/15627020.2011.11407476
  • Description: The spatial dynamics and home range sizes of early juvenile white steenbras (Lithognathus lithognathus Cuvier, 1829) in the permanently open Great Fish Estuary, South Africa, were assessed using acoustic telemetry. Seven individuals (154–184 mm fork length) tagged with acoustic transmitters spent the majority of their time in the mesohaline to oligohaline regions of the estuary, between five and seven kilometres from the mouth. Mean home range size was small (97 399 ± 22 557 m2, mean ± S.D.) relative to the size of the estuary (approx. 1 360 000m2). Mean length of the estuary used by an individual was 1707m(±S.D.=1663 m). The fish were highly resident within the estuary, and showed fidelity towards their site of capture.
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  • Date Issued: 2011

Invasion of a South African Anguilla mossambica (Anguillidae) population by the alien gill worm Pseudodactylogyrus anguillae (Monogenea)

  • Authors: Parker, Denham , Weyl, Olaf L F , Taraschewski, Horst
  • Date: 2011
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/443367 , vital:74111 , https://hdl.handle.net/10520/EJC18196
  • Description: The parasitic gill monogenean Pseudodactylogyrus anguillae is alien to Africa. In an investigation of 227 longfin eel, Anguilla mossambica, and 26 mottled eel, Anguilla marmorata, sampled from four river systems in the Eastern Cape, South Africa, this parasite was only present on the gills of A. mossambica sampled from the Great Fish River system. In the Great Fish River, it infected 73.2% of the sampled population at a mean intensity of 63.8 ± 34.3 parasites per fish. High prevalence and intensity are indicative of a well-established alien invasive parasitic species. Results showing the absence of P. anguillae from the co-occurring but less abundant A. marmorata indicate that this species may be less susceptible to P. anguillae infection.
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  • Date Issued: 2011

Vice-Chancellor's welcoming address 2011

  • Authors: Badat, Saleem
  • Date: 2011
  • Language: English
  • Type: text
  • Identifier: vital:7591 , http://hdl.handle.net/10962/d1006582
  • Description: From introduction: The Purposes of a University. So permit me to spend a few minutes on the meaning of a university and the three purposes. Rhodes University exists to serve. The first purpose is to produce knowledge, so that we can advance understanding of our natural and social worlds and enrich our scientific and cultural heritage. This means that we ‘test the inherited knowledge of earlier generations’, we dismantle the mumbo jumbo that masquerades for knowledge, we ‘reinvigorate’ knowledge, and we share our findings with others. As a university, our second purpose is to disseminate knowledge and to develop your minds. Our goal is to ensure that you can think imaginatively, ‘effectively and critically’; that you ‘achieve depth in some field of knowledge’; that you can critique ideas and views and construct alternatives, and that you can communicate cogently, orally and in writing. Our final purpose as a university is to undertake community engagement, whether this is as part of academic courses or your voluntary participation in community projects organized by our Community Engagement Office.
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  • Date Issued: 2011

Business Statistics: STD 121

  • Authors: Odeyemi, A , Tyler, J
  • Date: 2010-11
  • Language: English
  • Type: Examination paper
  • Identifier: vital:11976 , http://hdl.handle.net/10353/d1010341
  • Description: Business Statistics: STD 121, degree exmaination November 2010.
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  • Date Issued: 2010-11

Distributed Web Computing: CSC 523

  • Authors: Thinyane, M , Vogts, D
  • Date: 2010-11
  • Language: English
  • Type: Examination paper
  • Identifier: vital:17786 , http://hdl.handle.net/10353/d1010326
  • Description: Distributed Web Computing: CSC 523, honours examination November 2010.
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  • Date Issued: 2010-11

Introduction to Computers and Computing: CLT 121

  • Authors: XaZela, W , Ntlabathi, S
  • Date: 2010-11
  • Language: English
  • Type: Examination paper
  • Identifier: vital:17893 , http://hdl.handle.net/10353/d1011062
  • Description: Introduction to Computers and Computing: CLT 121, examination November 2010.
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  • Date Issued: 2010-11

Special Topics in Crop Experimentation and Biometry: AGC 603,

  • Authors: Mutengwa, C , Soundy, P
  • Date: 2010-11
  • Language: English
  • Type: Examination paper
  • Identifier: vital:17647 , http://hdl.handle.net/10353/d1010025
  • Description: Special Topics in Crop Experimentation and Biometry: AGC 603, degree examination November 2010.
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  • Date Issued: 2010-11

Education: EDL 222

  • Authors: Shaughnessy, C , Botha, E
  • Date: 2010-10
  • Language: English
  • Type: Examination paper
  • Identifier: vital:18330 , http://hdl.handle.net/10353/d1011456
  • Description: Education: EDL 222, final examination November 2010.
  • Full Text: false
  • Date Issued: 2010-10

Geology (South African Geology, Economic and Mining Geology, Geochemistry, Structural Geology): GLG 221

  • Authors: Zhao, B , Kroll, G S R , Rasmeni, S K
  • Date: 2010-02
  • Subjects: Geology
  • Language: English
  • Type: Examination paper
  • Identifier: vital:17872 , http://hdl.handle.net/10353/d1011000
  • Description: Geology (South African Geology, Economic and Mining Geology, Geochemistry, Structural Geology): GLG 221, supplementary examination February 2010.
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  • Date Issued: 2010-02

Google docs and skype for a low bandwidth virtual classroom for developing countries

  • Authors: Thinyane, Hannah , Mufeti, Tulimevava K , Terzoli, Alfredo , Wright, Madeleine
  • Date: 2010
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/430757 , vital:72713 , https://ieeexplore.ieee.org/abstract/document/5753006
  • Description: There has been much attention recently on the use of virtual class-rooms to support distance learning. However, the required real-time and high-rate transfers for multimedia contents such as video and audio that comprise most off-the-shelf virtual classrooms make them infeasible for developing countries where bandwidth is typically more restricted. This paper describes the findings of an ongoing investigation to develop a low bandwidth virtual classroom that can provide the necessary func-tionality to deliver courses to distant students. By combining Google Docs and Skype, we realised a low bandwidth virtual classroom alterna-tive that could provide adequate functionality within our teaching con-text.
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  • Date Issued: 2010

Simultaneous determination of irinotecan hydrochloride and its related compounds by high performance liquid chromatography using ultraviolet detection

  • Authors: Mohammadi, Ali , Esmaeili, Farnaz , Dinarvand, Rassoul , Atyabi, Fatemeh , Walker, Roderick B
  • Date: 2010
  • Language: English
  • Type: Article
  • Identifier: vital:6413 , http://hdl.handle.net/10962/d1006508
  • Description: A new simple, precise and accurate high performance liquid chromatography (HPLC) method was developed and validated for the simultaneous determination of irinotecan (CPT-11) and two related compounds viz., 7-ethyl-10 hydroxycamptothecin (SN-38) and camptothecin (CPT) in pharmaceutical dosage forms. Chromatography was accomplished using a reversed-phase C18 column and ultraviolet (UV)detection and an isocratic mobile phase consisting of 3 % v/v triethylammonium acetate buffer (pH 3) and acetonitrile (70:30 v/v). The linear range of quantitation for all the compounds was 0.1-10 μg/mL. The limit of quantitation for all the compounds ranged between 0.01-0.05 μg/mL. The method has the requisite accuracy, selectivity, sensitivity and precision to assay of CPT-11 and related compounds in pharmaceutical dosage forms and bulk API.
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  • Date Issued: 2010

The SANTED Virtual Classroom Project: A case study

  • Authors: Mufeti, Tulimevava K , Thinyane, Hannah , Terzoli, Alfredo , Foster, Gregory G
  • Date: 2010
  • Subjects: To be catalogued
  • Language: English
  • Type: text , article
  • Identifier: http://hdl.handle.net/10962/430784 , vital:72715 , https://ieeexplore.ieee.org/abstract/document/5753006
  • Description: The SANTED Virtual Classroom Project is a collaboration initiative of the Departments of Computer Science at Rhodes University and the University of Namibia, conceptualized in 2007 and operational since 2008. The project aims to build capacity in the Computer Science De-partment at the University of Namibia through curriculum development and delivery, staff development and sharing of resources. This paper gives a detailed description of the project, highlighting how it was con-ceived, its aims and objectives, its aspirations and challenges, as well as some of the successes achieved to date.
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  • Date Issued: 2010
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