Abstract To investigate the influences ORG COCONUT FLAKES of heterogeneity and waning immunity on measles transmission, we formulate a network model with periodic transmission rate, and theoretically examine the threshold dynamics.We numerically find that the waning of immunity can lead to an increase in the basic reproduction number R 0 $R_{0}$ an
Roads, as the main artificial linear structures in any landscape, have an important role in the vulnerability of natural ecosystems and their sustainability.The purpose of this research is to introduce a systematic method for ecological vulnerability assessment to be used in road site selection and environmental impact assessment procedure.Five ste
Abstract Background Human infection of avian influenza virus (AIV) remains a great concern.Although live poultry markets are believed to be associated with human infections, ever more infections Playsuit have been reported in rural areas with backyard poultry, especially in the fifth epidemic of H7N9.However, limited information is available on bac
The paper presents an excerpt from a study of personally important choice.The concept of personally important choice is defined.A case study of a counselling process is used to test a hypothesis that value serves as a Walkers ORG BLACK BEANS meaningful basis for making a personally important choice.The principal stages of counselling work are prese