Latest News Archive

Please select Category, Year, and then Month to display items
Previous Archive
28 April 2020 | Story Andre Damons | Photo Supplied
During a recent training session at the ASC. From the left, front: Marisa Viljoen and Noleen Seris; back: Prof Lauren Franz, Dr Nokhutula Shabalala, and Dr David Griessel (Unit Director).

Greta Thunberg, the 17-year-old climate and environmental activist who identifies as autistic, calls her autism a superpower. And it might just be this superpower that saves the world. 

Celebrating the strengths of autism
With April being Autism Month, it is a good time to celebrate the strengths of autism, says Dr David Griessel, Director of the University of the Free State Autism Support Centre (ASC), and a registered developmental paediatrician in the UFS Department of Paediatrics and Child Health. This includes a no-nonsense, direct thinking, and ‘outside the box’ way of looking at life, which is not mired in wishful thinking and false hope.

The Autism Support Centre was initiated by Dr Griessel, who has a special interest in neonatal intensive care, perinatal care, neuro-developmental evaluation in high-risk babies, neuro-developmental behavioural problems and learning difficulties, autism spectrum disorders, and the ethics of neuro-disability. The centre is under the auspices of the ‘Make the first 1 000 days count’ project and is located on the UFS Bloemfontein Campus.

According to Dr Griessel, the current pandemic is asking questions of us as society. “Questions about what is really important to us as humans. Whether we can really keep on expanding and consuming as if tomorrow does not exist. The inconvenient fact is that our encroachment on the habitat of wild animals bring us in contact with wild animals, and although bats are very resistant to viruses, we are not,” says Dr Griessel.  

Dr Griessel says Greta does not care about social codes, and directly asks of us: “How dare you steal my dreams and my childhood with your empty words; our homes are on fire.”

Children with autism need significant support 
“If we, as so-called neuro-typical parents, caregivers, and society can accept and support them, they add to the richness and complexity of life. The first person described in the medical literature, Donald T, had a full and eventful life, but financial support and a small community who had his back, were real enablers!”

“In this time of lockdown, my thoughts go out to parents and the challenges they may face at home. There are wonderful resources available from Autism SA, which may help them navigate these uncertain times. When we listen to Greta, a thought springs up – maybe autism will save the world.” 

A first in Africa
The Early Start Denver Model (ESDM), a first in Africa, was recently presented at the ASC and is now used to support therapists, caregivers, and patients with autism and related disorders.

This model is one of the so-called naturalistic developmental behavioural interventions, which attempts to change the core features of autism. They all share the idea that normal developmental forces should drive the process of interaction between caregiver and child; this has been  to be effective in different controlled trials.

Three registered ESDM therapists, together with Prof Lauren Franz from Duke University in North Carolina as mentor, visited Bloemfontein at the end of 2019 to become accredited trainers. Colleagues from Tanzania as well as attendees from all over South Africa have visited the centre before.

The unit is also being used by two local therapists, Elize van Rensburg and Angela Correia, to achieve reliability in this therapy. Furthermore, the unit is used as a therapy centre and for ADOS (Autism Diagnostic Observation Schedule) evaluations – the gold standard for diagnosis.

 

An inside view of the Autism Support Centre on the Bloemfontein Campus of the University of the Free State (UFS).

Supporting families as caregiversAutism South Africa has adapted a guide from the Frank Porter Graham Child Development Institute at the University of North Carolina on the support of individuals with autism through uncertain times.

Individuals with autism may need additional support to process the news and adapt to the many changes.  This population may face additional challenges related to comprehension, communication, difficulty understanding abstract language, an insistence on sameness, and a greater likelihood of anxiety and depression – all of which may be exacerbated during this stressful period. 

The following seven support strategies are designed to meet the unique needs of individuals with autism during this period of uncertainty.  

• Supporting understanding
• Offering opportunities for expression
• Prioritising coping and calming skills
• Maintaining routines
• Building new routines
• Fostering connections (from a distance)
• Being aware of changing behaviours

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