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13 October 2020 | Story Lacea Loader

The Free State is currently one of the provinces in the country with the highest percentage of new tests that turn out positive for COVID-19. This also impacts on the staff and students at the University of the Free State (UFS), as the number of positive cases on the campuses has increased considerably during the past few weeks.  

The UFS experienced an increase of 47% in the number of students who tested positive from Level 2 of the national lockdown to Level 1. During the past few days, an increase of 21% in positive student cases has been experienced. In the case of staff, an increase of 34% in the number who tested positive occurred from Level 2 of the national lockdown to Level 1. Over  the past few days, an increase of 11% in positive cases has been experienced.

1. Adherence to national protocols and regulations

The safety, health, and well-being of staff and students remain a priority. Therefore, the university management is concerned about the rise in positive cases on the campuses and appeals to staff to adhere to the national protocols and regulations issued by the Ministers of Cooperative Governance and Traditional Affairs, Employment and Labour, Higher Education, Science and Innovation, and Health.   

It is important to note that non-adherence to certain of the national protocols and regulations is a criminal offence and is punishable by a fine or imprisonment of up to six months. By not adhering to national protocols and regulations, our staff is not only putting their own health at risk, but also the health of others.

2. Behaviour observed on campus  

The following behaviour has been observed among staff working on campus:
- Not adhering to social/physical distancing of 2 metres;
- Face-to-face contact without wearing masks (e.g. in boardrooms and tearooms, visiting each other in offices, etc);
- Not wearing a mask while moving on campus, as well as in buildings (except in the privacy of offices);
- Dishonesty during the screening process; and
- Non-compliance with isolation and quarantine guidelines.
Staff members are reminded that they may face disciplinary action if they do not adhere to the national COVID-19 protocols and regulations as issued by the different ministers. It is important that staff members be honest at all times during the screening process, as it has been observed that some staff members display some COVID-19-related symptoms but answer in the negative on the online screening app.

3. Reporting of positive COVID-19 cases
In terms of the directives issued by the Minister of Employment and Labour, the Minister of Health, and the Minister of Higher Education, Science and Innovation, the UFS is required to report all COVID-19 positive cases to the Department of Labour, the Department of Health, and the Department of Higher Education and Training.  All COVID-19 positive cases must thus be reported directly to the Senior Director: Human Resources (vjaarsj@ufs.ac.za) and Kovsie Health (johnr@ufs.ac.za) for further handling and reporting to the relevant government departments.

Please do not come to the campuses if you are experiencing any COVID-19-related symptoms and get tested as soon as possible.

Those staff members who test positive will receive the necessary advice from their medical practitioners and they can also contact Kovsie Health for assistance.


News Archive

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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