Science communication and the nature of the social media audience: Breaking and spreading of science news on Twitter in the South African context by Van Rooyen, Renier Stephanus

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Journalism, revolutionary technologies and preventing future harm : proposing the flaming torch media ethics theory and the ten tenets field guide for responsible and ethical commu... by Van Rooyen, Renier Stephanus

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Die verhittings- en verkoelingswarmteoordrag en drukval van laminere olievloei vir die geval van konstante wandtemperatuur in gladde en intern gevinde pype met wentellint-insetsels... by Van Rooyen, Renier Stephanus

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