Under the assumption that there is timer a time delay between the time target cells are contacted by the virus particles and the time the contacted cells become actively infected, we investigate the exponential stability of the noninfected equilibrium Dugout for a delayed HIV infection model with a nonlinear incidence rate.Compared with the global
Abstract Background Dengue (DEN) is a serious cause of mortality and morbidity in the world including Mexico, where the infection is endemic.One of the states with the highest rate of dengue cases is Oaxaca.The cause of DEN is a positive-sense RNA virus, the dengue virus (DENV) that evolves rapidly increasing its variability due to the absence of a
A simple statistical model to predict the number of aerosols which activate to form cloud droplets in warm clouds has been established, based on regression analysis of data from four summertime Cloud and Aerosol Characterisation Experiments (CLACE) at the high-altitude site Jungfraujoch (JFJ).It is shown that 79 % of the observed variance in drople
Abstract In recent years there has been ongoing controversy in the United States regarding monuments and place names commemorating the Confederate timer cause in the American Civil War.The following discussion focuses on Monument Avenue in the former Confederate capital of Richmond, Virginia.This was one of the most prominent locations of Confedera
With the aggravation of energy shortage and ecological deterioration, it becomes more and more essential for China to improve energy efficiency and realize the targets of energy conservation and emission reduction.This paper focuses on the measurement of the total factor energy efficiency (TFEE), the potentials of energy conservation and emission r