the fundamental issues in WSNs is the coverage problem. In this paper, the border coverage problem in WSNs is rigorously … analyzed. Most existing results related to the coverage problem in wireless sensor networks focused on planar networks; however … both 2D and 3D regions of interest. We also provide self-healing algorithms as an optimization to our border coverage …

emerging countries known as BRICS (Brazil, Russia, India, China, and South Africa). The regression results indicate that trade … openness has a more positive impact in boosting innovation in BRICS than in the five OECD countries, whereas ethnic diversity … and R&D expenditure have a more positive influence on innovation activities in OECD countries than in BRICS. Surprisingly …

. --------------------------------------------The present article, on a bibliographical search basis, traces an ornamental flowers agribusiness panorama in Brazil. It …

soybean agribusiness complex in Brazil took place, in part, as aconsequence of credit alternative forms, such as the soybean …