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With free buses and WhatsApp, southern Africa steps up storm preparedness

With free buses and WhatsApp, southern Africa steps up storm preparedness

RAY MWAREYA and NYASHA BHOBO WHEN tropical storm Chalane threatened Zimbabwe and Mozambique late last year, government authorities and aid agencies sprang into action, having learned lessons from the destruction and loss of life caused by cyclones in 2019. That year, two consecutive cyclones - Idai in March and Kenneth in April – brought unusually heavy rains and high winds, causing more than 1,000 deaths across southern Africa and affecting nearly 4 million people. In late December 2020, ahead of Chalane's arrival in Mozambique and eastern Zimbabwe, it was feared lives, property and infrastructure might be hit hard again. In…
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Your smartphone is not making you dumber — digital tech can enhance our cognitive abilities

Your smartphone is not making you dumber — digital tech can enhance our cognitive abilities

DIGITAL technology is ubiquitous. We have been increasingly reliant on smartphones, tablets and computers over the past 20 years, and this trend has been accelerating due to the pandemic. Conventional wisdom tells us that over-reliance on technology may take away from our ability to remember, pay attention and exercise self-control. Indeed, these are important cognitive skills. However, fears that technology would supplant cognition may not be well founded. Technology alters society Socrates, considered by many to be the father of philosophy, was deeply worried about how the technology of writing would affect society. Since the oral tradition of delivering speeches…
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Higher quality seeds can help beat Africa’s ‘hunger pandemic’

Higher quality seeds can help beat Africa’s ‘hunger pandemic’

VACCINATION efforts across the globe encourage hope of an imminent end to the COVID-19 health crisis. But the food security crisis that the pandemic has deepened cannot be alleviated quickly and will require lasting solutions. CHRIS O. OJIEWO, Theme Leader, Seed Systems, CGIAR System Organization Well-adapted and nutrient-dense crops like millet, sorghum, groundnut, chickpea, pigeonpea, cowpea and common bean, collectively called dryland cereals and legumes, are like a vaccine of sorts for hunger and under-nutrition. This is because, over time, improved varieties of crops will be able to render farming resilient to climate stresses, help improve nutritional outcomes and improve…
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A plant grown in Nigeria shows potential for epilepsy treatment

A plant grown in Nigeria shows potential for epilepsy treatment

EPILEPSY is a brain disorder that arises from imbalances of brain chemicals called neurotransmitters. This disorder manifests as recurring seizures, unconsciousness and momentary loss of memory. These events are frequent and unpredictable. This is because the brain cells called neurons either overwork or are unable to balance the release of two chemicals that are vital for normal brain function: gamma-aminobutyric acid and glutamate. MOSES B. EKONG, Senior Lecturer, The University of Uyo The burden of epilepsy in Nigeria is high, with estimated prevalence of eight per 1,000 people. Adults over 55 years of age have a higher risk factor of…
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Facebook to remove more false coronavirus claims from platform

Facebook to remove more false coronavirus claims from platform

FACEBOOK Inc said Monday it will help users find out where and when they can receive the coronavirus vaccine and will expand a list of false health claims it bans from the platform. The social media group said in a blog post that people can learn how to get vaccinated "in just a few taps" on the platform as more information about the vaccine rollout becomes available from public officials. Facebook will expand the list of false claims about the coronavirus and vaccine that it will remove from its site, including that COVID-19 is a man-made virus, and that vaccines…
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In a world first, South Africa grants patent to an artificial intelligence system

In a world first, South Africa grants patent to an artificial intelligence system

AT first glance, a recently granted South African patent relating to a “food container based on fractal geometry” seems fairly mundane. The innovation in question involves interlocking food containers that are easy for robots to grasp and stack. MESHANDREN NAIDOO, PhD Fellow and LexisNexis Legal Content Researcher and Editor, University of KwaZulu-Natal On closer inspection, the patent is anything but mundane. That’s because the inventor is not a human being – it is an artificial intelligence (AI) system called DABUS. DABUS (which stands for “device for the autonomous bootstrapping of unified sentience”) is an AI system created by Stephen Thaler,…
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Meet the 4 African women breaking the science glass ceiling

Meet the 4 African women breaking the science glass ceiling

LESS than 30% of researchers worldwide are women and UNESCO data shows that only about 30% of all female students choose science, technology, engineering and mathematics (STEM) fields at a tertiary level. Four African women scientists share their experiences in forging STEM careers. NATASHA JOSEPH, Freelance Commissioning Editor, The Conversation OGECHI EKEANYANWU, Commissioning Editor: Nigeria, The Conversation WALE FATADE, Commissioning Editor: Nigeria, The Conversation Dr Dayo Akande, Nigeria I can’t forget my experience as a secondary school student: after qualifying for a science competition at state level in 1989, I was asked to stay back and let my male schoolmate…
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Research and development are key to resilient food systems in Africa

Research and development are key to resilient food systems in Africa

WHAT will it take to build sustainable, resilient food systems in African countries? This was among the questions considered at the 2021 United Nations Food Systems Pre-Summit in late July. The summit, the first of its kind in this century, aims to identify bold, innovative actions, with measurable outcomes. These actions are needed to achieve many of the Sustainable Development Goals in what the UN has dubbed the “Decade of Action”. LULAMA NDIBONGO TRAUB, Technical Chair, Regional Network of Agricultural Policy Research Institutes (ReNAPRI), Stellenbosch University THOMAS JAYNE, MSU Foundation Professor, Agricultural, Food and Resource Economics, Michigan State University WANDILE…
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Move into government, U.N. official urges young climate activists

Move into government, U.N. official urges young climate activists

LAURIE GOERING A generation of young activists eager to set the agenda on global warming and clean energy should seek government jobs as a way to get lagging climate and energy goals back on track, a top U.N. energy official said on Tuesday. "We can't keep doing things from outside," Damilola Ogunbiyi, co-chair of U.N. Energy and chief executive of Sustainable Energy for All (SEforAll), told an online youth summit on achieving universal clean energy access. With the world falling behind on goals to bring clean, affordable energy to billions more people by 2030, "changing the minds of leaders has to happen…
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Egypt’s farmers tap new technology to save water and boost crops

Egypt’s farmers tap new technology to save water and boost crops

MENNA FAROUK  WHEN Eman Essa's husband died and she took over running his farm in southern Egypt, she found herself guessing when the wheat crop needed watering. Essa, 36, would often end up either using too much water on her 2-feddan (2-acre) plot outside Samalout city or hiring another farmer to take over the irrigation duties, she told the Thomson Reuters Foundation. Then, in December last year, the mother of four joined a new government project that uses sensors to allow her to see exactly when the soil is dry and just how much water she needs - all from…
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