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12 April 2022 | Story Lacea Loader

The management of the University of the Free State (UFS) is deeply concerned about the continued xenophobic and Afrophobic attacks in our country, specifically the actions of, and statements made by groups and individuals. 

The UFS condemns all forms of xenophobic and Afrophobic actions and thinking and expresses its solidarity with the members of the university community hailing from other regions of the African continent and the world. The UFS is committed to promoting diversity, social justice, inclusivity, and transformation and is united in its diversity. As a university community, it cherishes diversity as a catalyst for positive change, innovative research, and cutting-edge teaching and learning. Xenophobic actions, threats, or statements will not be tolerated at the UFS. The UFS is committed to nurturing and entrenching a human-rights culture and advocating human rights, both within the context of the university and beyond.

Xenophobia, Afrophobia, and discrimination jeopardise the process of internationalisation at any university. It limits the international and multicultural exposure of our students, which is important to achieve graduate attributes and to specifically develop students’ international and intercultural competence. The UFS is strategically strengthening its collaborations and partnerships in Africa and beyond. It recognises the positive power of diversifying the knowledge paradigms with which it interacts. International staff members, postdoctoral fellows, and students make a significant contribution to the academic project, scholarship traditions, and intellectual diversity of the university. 

The management of the UFS will do everything in its power to ensure the well-being of all members of its international university community.

Xenophobia is the ‘fear and hatred of strangers or foreigners or of anything that is strange or foreign’ (Merriam-Webster Dictionary), whereas Afrophobia can be understood as the ‘fear and hatred of the cultures and people of Africa’.





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Discovery in Scorpius constellation may signify clean energy for Earth
2017-01-23

 Description: Discovery in Scorpius constellation may signify clean energy for Earth Tags: Discovery in Scorpius constellation may signify clean energy for Earth

Earlier this year, a group of international astronomers
announced the discovery of an exotic binary star system,
AR Scorpii. The system is in the Scorpius constellation.
Photos: Supplied

See article on Nature’s website 

In future, stargazers and astronomers will look at the Scorpius constellation near the Milky Way with new eyes. Earlier this year, a group of international astronomers announced the discovery of an exotic binary star system, AR Scorpii. The system is in the Scorpius constellation.

Prof Pieter Meintjes, researcher in the Department of Physics at the University of the Free State (UFS), worked with four colleagues on what he describes as a “wonderful discovery”. This sensational discovery, which could lead to the production of cleaner energy on Earth, will be published in the research journal, Nature, early in 2017.

Model developed to interpret new set of measurements
The exotic binary star which was discovered consists of a red dwarf and a white dwarf revolving around each other every 3,5 hours. The binary system showed very prominent pulsations of 117 and 118 seconds respectively. The pulsations can be explained by a bundle radiation produced by the white dwarf star.

“These new observations have shown that the radiation is strongly polarised, a sign that we are dealing with synchrotron radiation here. Synchrotron radiation is produced by electrons accelerated to extremely high energy levels in the magnetic field of the white dwarf star,” says Prof Meintjes.

He developed a theoretical model to interpret a new set of measurements that was taken by the 1,9 m telescope and the 10 m SALT telescope at the South African Astronomical Observatory (SAA0).

Totally unique phenomenon could contribute to energy production on Earth
“I further indicated that the interaction between the magnetic fields of the white dwarf star and the red dwarf star induces secondary processes that specifically describe the behaviour of the radiation in the radio band and infrared band accurately. AR Sco is the first white-red dwarf binary system of which all the pulsated radiation could be explained by the synchrotron process, which is totally unique,” says Prof Meintjes.

According to Prof Meintjes, the value of the model lies in the fact that the processes which produce the radiation in AR Sco, can also be applied to produce energy on Earth.

 

Plasma reactors are based on roughly the same processes which apply in AR Sco, and with refining, it could be utilised to generate electricity in future. This will be much cleaner than nuclear energy.

 

The model developed by Prof Meintjes explains all the radiation in the system – from radio waves to X-rays – in terms of electrons accelerated to extremely high energy levels by electric fields in the system, which then produce synchrotron radiation over a very wide band of the electromagnetic spectrum.

Prof Meintjes is currently working on a follow-up article examining the evolution of the AR Sco, in other words, the origin of such a unique system and the final state towards which it is evolving. “My vision for the immediate future is therefore to develop a model for the evolution of the source concerned,” he says.

 

 

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