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29 May 2018 | Story Rulanzen Martin | Photo Charl Devenish
Africa Day Memorial Lecture explores future of statues
From the left are: Dr Stephanie Cawood, Acting Director of the CGAS; Prof Heidi Hudson, Dean of the Faculty of the Humanities; Prof Prakash Naidoo, Vice-Rector: Operations; and Dr Rahul Rao.
Read Lectures here

Drawing from different international perspectives on the topic of historical statues, the importance of debate surrounding the future of these symbols resounded at the 10th Annual Africa Day Memorial Lecture. 

The lecture was hosted on 23 May 2018 by the newly renamed Centre for Gender and Africa Studies and was presented by Dr Rahul Rao from the SOAS University of London, where he is a senior lecturer in Politics. 

“I am very excited about my trip to South Africa and to be here among you. This is my first trip to South Africa, and it is very exciting and also a little bit emotional for me, particularly because I got my first passport in 1984 when I was six years old, and it said – valid for travel to all countries except the Republic of South Africa. You know why that was the case.”

“I salute all of you for the transformation that has been affected in this country, and I think Africa Day is the perfect occasion to celebrate the transformation.”  

Student activism through #MustFall movements
“I first heard in March 2015 that students from the University of Cape Town have begun demonstrating to take down the statue of Cecil John Rhodes and have it removed from their campus, and a bit later, students from the University of Oxford in the United Kingdom followed suit. At first, I felt some guilt having been a Rhodes Scholar from 2001 to 2004, because you must embody the values of Cecil John Rhodes,” Dr Rao said.

“I have watched from afar the events that have taken place here, for example, the #RhodesMustFall Movement, and the reverberation of these events in other places; I mean, the way these events travel,” he said.

Students in Cape Town, Oxford, and Bloemfontein are doing something concrete and collective to dismantle the legacy of colonialism and Apartheid. “I feel connected to these events, even if I am far away.”

International perspective on historical statues
In both SA and the UK, the call for iconography decolonisation was accompanied and soon overtaken by different accounts. It also gives a broader and different perspective on how statues can be used to achieve racial or social dominance. 

One of the many examples he used, was the ambush against Confederate Statues in the American South. These statues are symbols of upholding a white supremacist ideology in the South. The Confederate States of America was the predecessor to the current United States of America.

He also spoke about the temporalities of statues, the decolonisation and recolonisation, as well as the aesthetics of statues, among other things. “Statues don't need permission to thrust itself upon us. They demand attention,” Dr Rao said. This is because statues are placed in the centre of public spaces but are also vulnerable and exposed. 

He left the audience with some questions on what to do with statues that are taken down, and who to erect new statues for.

News Archive

Fight against Ebola virus requires more research
2014-10-22

 

Dr Abdon Atangana
Photo: Ifa Tshishonge
Dr Abdon Atangana, a postdoctoral researcher in the Institute for Groundwater Studies at the University of the Free State (UFS), wrote an article related to the Ebola virus: Modelling the Ebola haemorrhagic fever with the beta-derivative: Deathly infection disease in West African countries.

“The filoviruses belong to a virus family named filoviridae. This virus can cause unembellished haemorrhagic fever in humans and nonhuman monkeys. In literature, only two members of this virus family have been mentioned, namely the Marburg virus and the Ebola virus. However, so far only five species of the Ebola virus have been identified, including:  Ivory Coast, Sudan, Zaire, Reston and Bundibugyo.

“Among these families, the Ebola virus is the only member of the Zaire Ebola virus species and also the most dangerous, being responsible for the largest number of outbreaks.

“Ebola is an unusual, but fatal virus that causes bleeding inside and outside the body. As the virus spreads through the body, it damages the immune system and organs. Ultimately, it causes the blood-clotting levels in cells to drop. This leads to severe, uncontrollable bleeding.

Since all physical problems can be modelled via mathematical equation, Dr Atangana aimed in his research (the paper was published in BioMed Research International with impact factor 2.701) to analyse the spread of this deadly disease using mathematical equations. We shall propose a model underpinning the spread of this disease in a given Sub-Saharan African country,” he said.

The mathematical equations are used to predict the future behaviour of the disease, especially the spread of the disease among the targeted population. These mathematical equations are called differential equation and are only using the concept of rate of change over time.

However, there is several definitions for derivative, and the choice of the derivative used for such a model is very important, because the more accurate the model, the better results will be obtained.  The classical derivative describes the change of rate, but it is an approximation of the real velocity of the object under study. The beta derivative is the modification of the classical derivative that takes into account the time scale and also has a new parameter that can be considered as the fractional order.  

“I have used the beta derivative to model the spread of the fatal disease called Ebola, which has killed many people in the West African countries, including Nigeria, Sierra Leone, Guinea and Liberia, since December 2013,” he said.

The constructed mathematical equations were called Atangana’s Beta Ebola System of Equations (ABESE). “We did the investigation of the stable endemic points and presented the Eigen-Values using the Jacobian method. The homotopy decomposition method was used to solve the resulted system of equations. The convergence of the method was presented and some numerical simulations were done for different values of beta.

“The simulations showed that our model is more realistic for all betas less than 0.5.  The model revealed that, if there were no recovery precaution for a given population in a West African country, the entire population of that country would all die in a very short period of time, even if the total number of the infected population is very small.  In simple terms, the prediction revealed a fast spread of the virus among the targeted population. These results can be used to educate and inform people about the rapid spread of the deadly disease,” he said.

The spread of Ebola among people only occurs through direct contact with the blood or body fluids of a person after symptoms have developed. Body fluid that may contain the Ebola virus includes saliva, mucus, vomit, faeces, sweat, tears, breast milk, urine and semen. Entry points include the nose, mouth, eyes, open wounds, cuts and abrasions. Note should be taken that contact with objects contaminated by the virus, particularly needles and syringes, may also transmit the infection.

“Based on the predictions in this paper, we are calling on more research regarding this disease; in particular, we are calling on researchers to pay attention to finding an efficient cure or more effective prevention, to reduce the risk of contamination,” Dr Atangana said.


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