Solar tracking systems allow an increase in the use of solar energy for its conversion with photovoltaic technology due to the alignment with the sun.However, there is a compromise between tracking accuracy and the energy required to perform the movement action.Consequently, the wear of the tracker components increases, reducing its useful lifetime

Persistent immune activation is a striking consequence of HIV-1 infection and a driving force of CD4+ T cell depletion and AIDS events during chronic infection.High level of T cell immune activation associates with antiretroviral therapy (ART)-treated clinical outcomes in chronically HIV-1-infected patients.However, the role of T cell activation du

Tubal pregnancy concerns 97% of all ectopic pregnancies.Treatment can be either surgical (salpingostomy or salpingectomy) or medical (methotrexate administration).We present a case of a pseudotubal pregnancy after methotrexate treatment of a previous Underwear ectopic pregnancy.A37-year-old woman was diagnosed with ectopic pregnancy in the left Fal

High efficiency and low fuel consumption make the contrarotating open rotor (CROR) system a viable economic and environmentally friendly powerplant for future aircraft.While the potential benefits are well accepted, concerns still exist with respect to the vibrations and noise caused by the aerodynamic interactions of CROR systems.In this paper, em

Idiopathic pleuroparenchymal fibroelastosis (iPPFE) is a rare form of idiopathic interstitial pneumonia.We report a case of a patient with iPPFE Magnesium in whom postural changes improved diaphragmatic excursion (DE) and exercise tolerance.Chest radiography showed a greater elevation of the diaphragm at maximum expiration in the supine position th