Technological basis of rotation of body with polygon

Front-end plows are promising and carry out smooth plowing.A significant disadvantage of the front plow is that the housings do not completely rotate the layers within their own furrow and have a large traction resistance since they work in conditions of blocked cutting.The study aims here to substantiate the technology of turnover of a polygonal f

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Predictors of maternal HIV acquisition during pregnancy and lactation in sub-Saharan Africa: A systematic review and narrative synthesis.

ObjectivesTo eliminate vertical transmission of HIV, global institutions recommend using a risk-guided approach for HIV prevention services in antenatal and postnatal settings.Identifying predictors of maternal HIV acquisition can inform the development of risk-guided iphone 13 pro max price florida approaches, but individual studies of predictors

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Controls of Aurelia coerulea and Nemopilema nomurai (Cnidaria: Scyphozoa) blooms in the coastal sea of China: Strategies and measures

Outbreaks of scyphozoan Aurelia coerulea and Nemopilema nomurai in the coastal sea of China are managed in recent years because they have severely jeopardized local socioeconomic development and ecological health.In this study, we propose specific strategies to control these blooms based on the different physio-ecological characteristics of their p

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