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Ignition and extinction characteristics of a material determine whether a fire will be initiated and grow. In fire safety engineering, where modellers deal with a multitude of materials, simplified thresholds are commonly used to determine when ignition and extinction occur.Such a threshold is the critical mass flux, which describes when sufficient fuel vapour is produced to support sustained flam
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The SAIRLA-supported AFRINT IV project has been collecting data on agricultural intensification from23 farming communities in seven regions in Malawi, Tanzania and Zambia since 2008. Policies in allcountries have a strong focus on maize intensification and also target women as recipients ofsubsidised farm inputs. During this time, data on maize shows that only in the Zambian region hasthere been a
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We report a case report of lupus vulgaris (LV) presented on the extremities of an 80-year-old man. He was misdiagnosed as having psoriasis and referred to our department for a second-opinion evaluation. The discrepancy between the clinical manifestation which was misleading and the dermatoscopic findings raised the suspicion of an underlying granulomatous disease and we proceeded to skin biopsy. T