Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
11 June 2021 | Story Rulanzen Martin | Photo Supplied
Prof Joy Owen believes in the mutual intellectual push between research supervisor and student.

Prof Joy Owen, Head of the Department of Anthropology, and two of her students, Ingrid Juries, PhD student and Mamokoena Mokoena, Master’s student, presented a paper exploring the experiences of migrants, at the virtual Oxford Migration Conference that took place from 10 to 11 May 2021 under the theme Borders and Justice.

According to Prof Owen, their paper Bordering on complexity? African migrants’ narratives of boundary creation and dissolution, “tries to make a particular intervention in the transnational migration literature – inclusive of diasporic and refugee studies – which speaks to the complexity of reception in ‘host’ countries”.   Their paper and presentation were included in Routed, a special conference magazine. 

The mainstream portrayal of migrants and residents is that of one-sided aversion and sometimes violence, which gives rise to xenophobic attacks. However, the work done by Prof Owen, Mokoena, and Juries illustrates the ‘rather messy experiences’ of both migrants and citizens and the interpersonal relationships that may result from it.  “These relationships are not merely riddled with negative experiences, but also positive, life-affirming experiences for both migrant and citizen,” says Prof Owen.

 

Xenophobia in South Africa

South Africa in particular, has seen a rise in xenophobic attacks and xenophobia in general, which begs the questions – do we need more research on the matter? Prof Owen says no. “There’s vast literature on xenophobia, and more recently xenophilia – ‘the love of the other’. We need more research that demonstrates the ways in which non-citizens have become part of the South African socio-economic and political fabric,” says Prof Owen.


The complexities of our history in South Africa, that of migration and settlement. “How we narrate those stories, and what we focus on, confirms how we define ourselves as contemporary South Africans, inclusive of migrants in our midst,” says Prof Owen.

 

Mutual intellectual push

For Prof Owen, it is important to reiterate that although Juries and Mokoena are under her supervision, they were also her collaborators for the conference presentation. “Their contemporary knowledge and understanding of the intricate and embattled experiences of migrants in South Africa is growing,” she says. It is a privilege for her to witness the fast, immediate intellectual growth of her students and their academic prowess while being pushed intellectually herself. “That is fundamentally the role of education, is it not? To keep pushing beyond the knowledge we have accrued in service to society,” Prof Owen says. 


News Archive

Research helps farmers save with irrigation
2017-02-15

Description: Irrigation research Tags: Irrigation research

Marcill Venter, lecturer in the Department of
Agricultural Economics at the University of the
Free State, has developed the mathematical
programming system, Soil Water Irrigation
Planning and Energy Management in order to
determine irrigation pump hours.
Photo: Rulanzen Martin

Her advice to farmers is that they should make sure they are aware of the total cost (investment and operating costs) of an irrigation system. In most cases the investment cost is low, but the operating cost over the lifetime of the system is high.

“It is very important to have a look at the total cost and to install the most economic system,” says Marcill Venter, lecturer at the University of the Free State (UFS), who has done research on the economic sustainability of water-pipe systems.

Irrigation systems important components for farming
This research comes at a time when many farmers are relying on their irrigation systems due to persistent drought and low rainfall during 2016. South Africa has also experienced an abnormal increase in electricity tariffs in recent years. Due to tariff increases which threaten the future profitability of irrigation producers, the Water Research Commission (WRC) has launched and financed a project on the sustainable management of irrigation farming systems. “I had the opportunity to work on the project as a researcher,” says Venter.

The heart of every irrigation system is the water pipes that bring life to crops and livestock, and this is what Venter’s research is about. “Water pipes are part of the whole design of irrigation systems. The design of the system impact certain factors which determine the investment and operating costs,” she says.

Mathematical system to help farmers
Venter and Professor Bennie Grové, also from the Department of Agricultural Economics at the UFS, designed the Soil Water Irrigation Planning and Energy Management (SWIP-E) programming model as part of the WRC’s project, as well as for her master’s degree. “The model determines irrigation pump hours through a daily groundwater budget, while also taking into account the time-of-use electricity tariff structure and change in kilowatt requirements arising from the main-line design,” says Venter. The model is a non-linear programming model programmed in General Algebraic Modeling System (GAMS).

Design of irrigation system important for sustainability

The main outcome of the study is that the time-of-use electricity tariff structure (Ruraflex) is always more profitable than the flat-rate structure (Landrate). The interaction between the management and design of a system is crucial, as it determines the investment and operating costs. Irrigation designers should take the investment and operating cost of a system into account during the design process. The standards set by the South African Irrigation Institute (SAII) should also be controlled and revised.

Water-pipe thickness plays major role in cost cuts
There is interaction between water-pipe thickness, investment and operating costs. When thinner water pipes are installed, it increases the friction in the system as well as the kilowatt usage. A high kilowatt increases the operating cost, but the use of thinner water pipes lowers the investment cost. Thicker water pipes therefore lower the friction and the kilowatt requirements, which leads to lower operating costs, but thicker pipes have a higher investment cost. “It is thus crucial to look at the total cost (operating and investment cost) when investing in a new system. Farmers should invest in the system with the lowest total cost,” says Venter.

We use cookies to make interactions with our websites and services easy and meaningful. To better understand how they are used, read more about the UFS cookie policy. By continuing to use this site you are giving us your consent to do this.

Accept