Inspired by the “generalized t-designs” defined by Cameron [P. J. Cameron, A generalisation of t-designs, Discrete Math. 309 (2009), 4835–4842], we define a new class of combinatorial designs which simultaneously provide a generalization of both covering designs and covering arrays. We then obtain a number of bounds on the minimum sizes of these designs, and describe some methods of constructin...

This study provides an overview of the multi-sectoral coastal aquaculture development in Zanzibar (Tanzania) over last thirty years based on empirical evidence from interviews, field observations, policy reports and literature reviews. Despite immense potential for food livelihoods, only seaweed farming has so far established into commercial-scale production. activity is dominated by women beca...

BACKGROUND Scuba diving fishing, predominantly targeting sea cucumbers, has been documented to occur in an uncontrolled manner in the Western Indian Ocean and in other tropical regions. Although this type of fishing generally indicates a destructive activity, little attention has been directed towards this category of fishery, a major knowledge gap and barrier to management. METHODOLOGY AND P...

Iron deficiency and iron-deficiency anemia are common in young children, and there is substantial evidence that iron deficiency has adverse effects on child health and development. Therefore, provision of additional iron to infants and young children who are iron deficient should be a public health priority. Two large trials, coordinated and supported by the World Health Organization (WHO), wer...

Babesia bovis and Cowdria ruminantium were identified for the first time in cattle on Unguja Island, Zanzibar. B bovis is common and widespread, although clinical disease had not been diagnosed previously. The vector of heartwater, Amblyomma variegatum, is found throughout Unguja but C ruminantium appears to be more localised in distribution than B bovis.

We censused two discrete subpopulations of the endangered Zanzibar red colobus (Procolobus kirkii) and sympatric Sykes’s monkeys (Cercopithecus mitis albogularis) between February 2004 and September 2005 in two coastal forests in Zanzibar, including the northernmost (Kiwengwa-Pongwe Forest) and some of the southernmost (Uzi and Vundwe Islands) extents of P. kirkii’s range. Surveys totalled 365 ...

Abstract The term lacus generally identified the public fountains in main streets of ancient Roman towns, providing for population daily water demand. simplest consisted a stone basin and spout stone, concealing one or two supply pipes. 35 street this type have been surveyed Pompeii, to gather information on their its variation time. A new method was devised calculating discharge through overfl...

Although social media are extensively employed in health communication promotion, their online and offline connection has rarely tested. This qualitatively study used a sample of 30 experts professionals to explore the role mitigating COVID-19 infections its implications people’s Zanzibar. The findings revealed that powerful platforms providing awareness information for these have enabled peopl...