Human activities and climate change are important factors that affect grassland ecosystems.A new optimization approach, the approach of conditional nonlinear optimal perturbation (CNOP) related to initial and parameter perturbations, is employed to explore the here nonlinearly combined impacts of human activities and climate change on a grassland e
Background: Hepatitis C virus (HCV) is transmitted by blood and blood products and it causes a major proportion of transfusion transmitted hepatitis.It can lead to chronic liver disease which has great morbidity and mortality.HCV is responsible for more deaths than Human immunodeficiency virus (HIV).As no vaccine is available and as the treatment i
The detection of genetically modified (GM) maize events is an inevitable necessity under the strict regulatory systems of many countries.To screen for GM maize events, we developed a multiplex PCR system to specifically detect 29 GM maize events as well as the cauliflower mosaic virus 35S promoter, the Agrobacterium tumefaciens nos terminator, the