this investigation was performed according to the widespread application of base metal alloys and few articles published about the marginal integrity of restorations fabricated by these metals.three standard dies of a maxillary first premolar were prepared with a flat shoulder finish line in buccal aspect and chamfer in palatal. one of them left with no change. on the buccal aspect of the secon...

Abstract Soil fertility is key to sustainable intensification of agriculture and food security in sub-Saharan Africa. However, when soil nutrients are not adequately managed, smallholder farming practices slowly erode soils almost inert systems. This case study contributes the understanding such failures marginal areas. We integrate agronomic social sciences approaches explore links between hou...

In Italy, there is a clear disparity between cities and villages located in marginal areas. The progressive depopulation of inland areas the urban polarization represent consolidated dynamics difficult to adapt new paradigm sustainable development. post-Covid-19 pandemic scenario offers opportunity redefine parameters intervention visions for regeneration accord with challenges decentralization...

Climate change has resulted in increased vulnerability of smallholder farmers in marginal areas of Zimbabwe where there is limited capacity to adapt to changing climate. One approach that has been used to adapt to changing climate is in-field water harvesting for improved crop yields in the semi- arid regions of Zimbabwe. This review analyses the history of soil and water conservation in Zimbab...