Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
18 May 2022 | Story Rulanzen Martin | Photo Supplied
Jon Kehrer
Jon Kehrer is a prolific academic and scholar. He also spent a few years teaching English in the Middle East.

It was a former professor who influenced American scholar Jon Kehrer to further his academic journey with the Department of Hebrew at the University of the Free State (UFS). And it was at the UFS where he recently graduated cum laude with a master’s degree in Hebrew, and was named recipient of the Dean’s Medal. 

Although he never expected to receive the Dean’s Medal, he is very glad – and somewhat relieved – that his dissertation made it through the examiners. “I never anticipated receiving this award. It makes me even more grateful for the strong Hebrew Department at UFS, and their rigorous standards for their students,” Kehrer says. 

“I wish I had been able to attend the graduation ceremony, but the circumstances of the semester just did not allow it.” Kehrer is currently teaching in the areas of the Old Testament and Biblical Languages at the Ozark Christian College (OCC) in Missouri, USA. In addition to his UFS qualifications Kehrer also holds a Bachelor of Theology qualification from the OCC. “I love the opportunity to invest in students and help them see new perspectives,” he says. 

UFS Hebrew a firm foundation for a solid academic career  

“I was looking for a high-quality and challenging programme that was flexible, especially since I work full-time and have a large family,” Kehrer says, as he recalls how he initially decided to become part of the UFS. He remembers fondly how Dr Kevin Chau, senior lecturer in Hebrew at the UFS, motivated and supported him when he first enrolled for the BA Honours programme. 

It is also a testament that the Department of Hebrew has made an impact internationally for the quality of its academic offerings. “Dr Chau helped me to think about how what I was learning would have an impact on my research and teaching in the future, and he was always quick to provide thorough and constructive feedback on my work,” Kehrer says.  

Once enrolled for the master’s programme it was initially difficult to know which direction to pursue and what topic to research, but the guidance and support of his two advisors, Prof Cynthia Miller-Naude and Prof Jacobus Naude, was “very helpful”.

“They never dictated what paths I should pursue, but they listened carefully and provided expert guidance to help me choose the path that would best suit my interests and the needs of the field,” he says. 

It was this support from the Department of Hebrew and its excellent reputation that came full circle when Kehrer was named Dean’s Medal recipient for achieving the highest marks of any student in a master’s qualification in the UFS Faculty of The Humanities. 

Dissertation a closer look at verbs in Biblical Hebrew 

His dissertation focused on Biblical Hebrew and how the object of a verb appears in various ways. “Sometimes an object appears by itself, but sometimes it can have a preposition or a two-consonant Biblical Hebrew particle along with it. Many Bible translations treat all these objects the same,” he says. “I wanted to try to understand why these variations occurred, so I looked at how different sentence elements might contribute to the variation. It was a fascinating study!” 
 
Kehrer believes it is important for university students to continue studying classical subjects like Hebrew. “I think we can all learn much from those who have gone before us, and so much wisdom and insight is connected to these ancient Biblical Hebrew texts, texts that would be inaccessible to us without translation,” he says. 

“I also think classical disciplines can help train students to think well and to read critically – essential skills for living in today’s ever-changing world.”  

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