In online purchasing, customers may return products due to dissatisfaction with the quality of the product, and receive a refund based on the return policy, which is determined by online Accessories distributors.Online distributors can offer generous policies to attract more customers, but at the cost of reducing total profits.In this paper, the ef
Corrosion of steel reinforcement in concrete is a common problem for reinforced concrete buildings in coastal regions.It can Left Hand Swing have significant impacts on the seismic performance of these buildings.Corrosion in reinforced concrete members can cause problems such as concrete cover removal, longitudinal cracks in concrete, and reduction
BackgroundChlamydiaceae are a family of obligate intracellular pathogens causing a wide range of diseases in animals and humans, and facing unique evolutionary constraints not encountered by free-living prokaryotes.To investigate genomic aspects of infection, virulence and host preference we have sequenced Chlamydia psittaci, the pathogenic agent o
This study investigated the effect of nitrogen application on the rhizosphere soil microenvironment of sunflower and clarified the relationship between ammonium assimilation and the microenvironment.In a field experiment high (HN, 190 kg/hm2), medium (MN, 120 kg/hm2) and low nitrogen (CK, 50 kg/hm2) treatments were made to replicate plots of sunflo