28 research outputs found

    Agricultural Research Management Training Needs in SADCC

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    An AEE Working Paper.Management capabilities in agricultural research have been diagnosed as extremely weak in East and Southern Africa. Many agricultural professionals including academics are involved in management but haye not had any formal background in management training. Improving management skills of agricultural professionals is becoming widely recognized as a means of improving productivity in agriculture. For example, the International Agricultural Research Centers including IRRI and CIMMYT are now viewed as being limited in their impacts by management constraints and the thirteenth international research centre, the International Service for National Agricultural Research (ISNAR) has been created to address agricultural research management issues

    Household food insecurity in low rainfall areas of Zimbabwe: initial findings in Mudzi, Mutoko and Buhera Communal Areas

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    A conference paper on how the effects of drought have caused food shortages and reduced incomes for rural based households in Zimbabwe.Since 1980, drought has caused widespread crop failures in Zimbabwe. The majority of rural based households have experienced reduced incomes and food shortages, requiring them to rely on food transfers from the government. Approximately 350,000 households have received government support through commodity food aid or food-for-work programmes. Since 1981-82, the government has spent an estimated Z$800 million on these programmes, excluding costs borne by non-governmental organisations (Mhiribidi, 1987). In addition, households themselves have been forced to divert remittances from production investment to consumption, dispose of production assets, and migrate in search of alternative income sources,The research supporting the preparation the proceedings papers was financed by the U.S. Agency for International Development, Bureau of Science and Technology; Bureau for Africa; and the Southern Africa Regional Programme

    The changing health impact of vaccines in the COVID-19 pandemic: a modeling study

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    Much of the world’s population had already been infected with COVID-19 by the time the Omicron variant emerged at the end of 2021, but the scale of the Omicron wave was larger than any that had come before or has happened since, and it left a global imprinting of immunity that changed the COVID-19 landscape. In this study, we simulate a South African population and demonstrate how population-level vaccine effectiveness and efficiency changed over the course of the first 2 years of the pandemic. We then introduce three hypothetical variants and evaluate the impact of vaccines with different properties. We find that variant-chasing vaccines have a narrow window of dominating pre-existing vaccines but that a variant-chasing vaccine strategy may have global utility, depending on the rate of spread from setting to setting. Next-generation vaccines might be able to overcome uncertainty in pace and degree of viral evolution
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