EFFECTS OF LAND USE CHANGE ON LAND EROSION AND LAND CRITICAL LEVEL USING GIS IN THE MAYANG WATERSHED


Experimental Study to Investigate Effect of Pitch Ratio and Number of Blades on Hydrodynamic Performance of Surface Piercing Propellers

Surface piercing propellers are special supercavitation propellers operating at free surface.These propellers are designed to have the best performance at the highest speed.The geometric parameters of the number of blades and the pitch ratio will significantly impact the critical advance coefficient range, ventilation and consequently the hydrodyna

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Children with trisomy 21 are a group at risk for severe COVID-19: Case reports from a COVID-19 treatment unit in Addis Ababa, Ethiopia

Trisomy 21 (Down syndrome) is a chromosomal disorder bearing associated with humoral and cellular immunologic impairments among other systemic manifestations.It occurs at a frequency of 1 in 750 live births.There are increasing reports of children with Down syndrome presenting signs of severe COVID-19.The literature from Africa on pediatric COVID-1

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