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06 March 2020 | Story Thabo Kessah | Photo Tsepo Moeketsi
Dr Ocaya
Dr Richard Ocaya’s research addresses the skills development and transfer millennium goal of many governments globally.

With the Fourth Industrial Revolution becoming a reality, Dr Richard Ocaya’s research is receptive to the fact that Africa and the world need to re-imagine their research. His research focuses on electronic instrumentation design for scientific measurements, computational physics on atomic nano-atomic structures, and semiconducting organic compounds materials built on silicon to realise Schottky devices.

Software developer 
“I develop most of the instrumentation that I apply in my research – both software and hardware,” said Dr Ocaya, a Physics Lecturer and Programme Director: Physics and Chemistry on the UFS Qwaqwa Campus.

“I am active in scientific computing through the computing cluster and software development, mathematical physics for material science modelling, and embedded instrumentation design using microprocessors. I also have deep interest in radio and data telemetry, in which I hold a South African patent issued in 2013. My present international collaborations are with like-minded researchers in similar fields in Saudi Arabia, Turkey, Japan, Egypt, South Korea, and the United States,” he added.

How does his research talk to the real world?
“The driving principle of all areas of my research has always been to deploy cutting-edge research to actual, real-world applications for the immediate betterment of Africans. The areas of my research align closely with the millennium goals of many governments globally, including the Republic of South Africa. These goals pertain to skills development and transfer that position us to better address the challenges of energy, water, and other priorities.”

Dr Ocaya is currently co-promoting a PhD student, having previously supervised one PhD, two MSc, and more than twenty honours students. He is a self-taught electronics and computer programmer, whose curiosity led him to question ‘the voices and music coming from a box; a radio’. “In my quest to satisfy my curiosity, I collected many discarded devices, took them apart, and tried so many circuits, only to have them fail because the theory was lacking. After thousands of failed projects and with me barely thirteen and in lower secondary school, my first ever project actually worked,” he said.

NRF-rating
He is the author of the book Introduction to Control Systems Analysis using Point Symmetries: An application of Lie Symmetries, which is available in all major bookstores such as Amazon, in both print and e-book format. He is a C3 NRF-rated researcher whose work makes a pioneering contribution to the new and growing field of phononics, an independent field of the now established photonics.

“This field will someday lead to improved energy-storage devices and faster processors due to more efficient heat removal from nanodevices,” he concludes.


News Archive

Care centre goes high-tech to help sexual abuse victims
2016-11-25

Description: Colposcope Tags: Colposcope

The colposcope, donated by the Discovery Fund,
will be used during gynaecological examinations
to detect any irregularities.
Photo: Supplied

Rape is one of South Africa’s most pressing social problems. Rape levels in the country are often discussed and reported on, but it does not deter perpetrators from this behaviour. According to Africa Check, of the more than 42 000 rape cases reported in 2015, 15 790 were child rape cases.

In an effort to assist victims of sexual assault and rape, the University of the Free State (UFS) Department of Family Medicine adopted the Tshepong Thuthuzela Care Centre, under the leadership of UFS lecturer Dr Mariaan Kotze.

The Discovery Fund donated a colposcope to Tshepong Thuthuzela Care Centre, an instrument that works with the help of a bright light and which is used to examine victims of abuse. It has also become a standard of good practice in the assessment of child abuse worldwide. According to Dr Kotze, the new instrument will also be used for training health practitioners by rendering clinical forensic services to abuse victims.

Managing complex issues

The care centre works with between 80 and 120 victims of rape each month, a third of whom are children under 14 years of age. According to Dr Kotze, the management of child sexual abuse victims is more complex than with adults; as there is a higher chance of missing or over-diagnosing abnormalities. Also, she says, the examination process is often observed by a group of healthcare practitioners, an experience which is often intrusive and intimidating for the child. With the colposcope, the timeframe of the examination is shortened, and can be captured and viewed in real time, without the victim being present.

Best care for victims

The colposcope is a magnifier and light source used during gynaecological examinations. It is instrumental in providing the best care to victims of sexual abuse, and helps diagnose and assist in the treatment of cases of abuse. Its ability to capture and review images at the time of examination allows for retrospective research, and improves the ability of expert witnesses in court cases.

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