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25 November 2020 | Story Dr Nitha Ramnath

 

Interdisciplinarity in Action


Lunchtime learning webinar on


The  Intersection between Science and Visual Arts


In this webinar, Prof Willem Boshoff and Prof Louis Scott, both from the University of the Free State, will discuss the intersection between science and the visual arts. The webinar will explore how new levels of understanding may emerge when seemingly unrelated fields of interest intersect, supported by the ideas we may find in the endless diversity of nature.

This webinar is part of a series of three webinars on Interdisciplinarity presented from November to December 2020 via Microsoft Teams for a duration of 45 minutes each. The webinar topics in the series explore the intersection between Neuroscience and Music, between Science and Entrepreneurship, and between Science and Visual Arts. 
 
Date: Tuesday 8 December 2020
Topic: The intersection between science and visual arts 
Time: 13:00-13:45 (SAST)
RSVP: Alicia Pienaar, pienaaran1@ufs.ac.za by 7 December 2020 
Platform: Microsoft Teams

Introduction and welcome
 
Prof Corli Witthuhn – Vice-Rector: Research at the University of the Free State 

Presenters

Prof Willem Boshoff
Willem Boshoff is a Senior Professor in Fine Arts at the University of the Free State. As a conceptual artist, he engages primarily with language. Notably, his works have included the writing of several themed dictionaries, most often made accessible to a broad audience in the form of large art installations. His broad interdisciplinary interests, including the fields of botany, music, and lexicography, have over the years led to the development of a digital research archive, which he recently donated to the University of the Free State.  Prof Boshoff’s work is exhibited extensively, both locally and abroad, and has been included in major private collections and museums. Recently, he became the first South African artist to be awarded an A2 rating by the National Research Foundation (NRF). 

Prof Louis Scott
Prof Louis Scott is a retired professor and mentor in the Department of Plant Sciences at the UFS, with an interest in visual arts. He studies fossil pollen in natural lake, cave, swamp, and fossil dung deposits. He attempts to reconstruct our heritage associated with African prehistory through environmental history, including natural long-term processes of change. Prof Scott is widely published in this field, serves on the editorial boards of international journals, and has a B-rating with the National Research Foundation. 


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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