Evaluation and modeling of soil water infiltration are essential to all aspects resources management the design hydraulic structures. Nonetheless, research focused on experimental studies rates in arid semi-arid regions under unknown boundary conditions remains minimal. This paper investigates characteristics spatial variability over a rural basin Algeria. The experiments were conducted using p...

Are most journals published in Africa too weak to be useful to local practitioners, researchers, and policy makers? Might a new method for scholarly communication on the African continent improve the utility of these journals? According to a provocative article published in Learned Publishing (Smart 2007), the answer to both questions is yes. Smart argued that the African research and education...

concepts (principles, formulas, rules, etc.)are illustrated with concrete, specific examples(Horton, 2001) All units/modules in the Web course include anoverview and a summary(Chua, 2002; Miller, 2002; Weston et al.,1999)Learners are made aware of learning objective foreach unit/module of the Web course.(Chua, 2002; Miller, 2002) Media useGraphics and multime...