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    Omanyano ovanhu koikundaneki yomalungula kashili paveta, Commisiner Sakaria takunghilile Veronika Haulenga

University of the Witwatersrand

9 Results / Page 1 of 1

Background
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Africa

South Africa’s Gauteng province launches water data hub – residents can now keep track of shortages and repair issues

    By Craig Sheridan, University of the Witwatersrand   South Africa is a water scarce country. In other words it has an excess of demand over available supply. It also has low water security – the ability to ensure sustainable access to good quality water. The country’s economic hub and biggest population centre, Gauteng province, has suffered sequential water crises that have been a blend of both factors, combined […]

todaySeptember 19, 2024 10

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Africa

Air pollution in South Africa: affordable new devices use AI to monitor hotspots in real time

  By Bruce Mellado, University of the Witwatersrand   Air quality has become one of the most important public health issues in Africa. Poor air quality kills more people globally every year than HIV, TB and malaria combined. And that’s just the tip of the iceberg. Air pollution makes people less productive because they get headaches and feel tired. India, for example, has poor air quality. The impact of India’s […]

todayAugust 14, 2024 6

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Africa

Some solitary mammals have surprisingly social lives: what I’ve learned from a tiny South African rodent

    By Lindelani Makuya, University of the Witwatersrand   We probably all know someone who lives a solitary life. But not everyone realises that there are solitary individuals in the animal kingdom, too. Examples of solitary species are some shrews, and large predators, such as black bears (Ursus americanus) and leopards (Panthera pardus). Solitary living is defined by the social organisation of individuals, where both males and females sleep […]

todayAugust 12, 2024 13

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South Africa

South Africa’s unity government could see a continuation of the ANC’s political dominance – and hurt the DA

    By Roger Southall, University of the Witwatersrand     The ANC’s loss of its majority in the recent election, and President Cyril Ramaphosa’s formation of a government of national unity, have been interpreted by some commentators as indicating the end of the ANC as a “dominant party”. That is, one which recurrently wins elections and hence dominates a political system. Their argument, and it is not unconvincing, is […]

todayJuly 30, 2024 22

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Africa

How old are South African fossils like the Taung Child? New study offers an answer

        By Francis Thackeray, University of the Witwatersrand     One hundred years ago the discovery of a skull in South Africa’s North West province altered our understanding of human evolution. The juvenile skull was dubbed the Taung Child by Raymond Dart, an anatomist at the University of the Witwatersrand, who first described it. In 1924 Dart could not say exactly how old it was, but he […]

todayJuly 15, 2024 13

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Health / Medical

Global pandemic treaty will help fight future threats: top negotiator on how talks are going

        By Precious Matsoso, University of the Witwatersrand     For the past two years the World Health Organization’s 194 member states have been negotiating an international accord on pandemic prevention, preparedness and response. This was driven by the need to ensure the world is better prepared for future pandemics. The outcome of the government-led negotiations was presented to the annual meeting of the World Health Assembly […]

todayJune 21, 2024 10

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Science & Technology

Understanding AI outputs: study shows pro-western cultural bias in the way AI decisions are explained

AI models’ outputs need to be properly explained to the people affected. DrAfter123/Getty Images     By Mary Carman, University of the Witwatersrand and Uwe Peters, Utrecht University   Humans are increasingly using artificial intelligence (AI) to inform decisions about our lives. AI is, for instance, helping to make hiring choices and offer medical diagnoses. If you were affected, you might want an explanation of why an AI system produced the […]

todayApril 19, 2024 21

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World

Africa is full of bats, but their fossils are scarce – why these rare records matter

      By Mariëtte Pretorius, University of the Witwatersrand   Africa is home to more than 20% of the world’s bat population. There are over 200 species to be found on the continent. South Africa is particularly diverse, with 72 bat species. I am a zoologist who has studied bats for many years. Recently, while doing some reading about South Africa’s fossils, I started wondering about bat fossils. Given […]

todayApril 18, 2024 22

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Africa

Kenya’s shilling is gaining value, but don’t expect it to last – expert

      By Odongo Kodongo, University of the Witwatersrand   Shortly after Kenya’s 2022 elections, the shilling depreciated rapidly against the US dollar – the country’s main currency for international transactions – fuelling a wave of political discontent. More than a year later, the Central Bank of Kenya, taking its cue from the International Monetary Fund, said that the run on the shilling was a market correction for a […]

todayApril 17, 2024 10

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