background cholera is a severe diarrheal illness caused by vibrio cholerae, which produces a virulence factor named el tor hemolysin encoded by the hlya gene. objectives this study meant to analyze the phenotypic characteristics and presence of hlya gene in v. cholerae isolated from patients in iran. the hlya gene which codes for hemolysin, plays an essential role in manifestation of cholera ,a...

background brucellosis is the most common global zoonosis and an important public health problem in many parts of the world including iran. diagnosis of brucellosis is frequently difficult to establish and conventional methods are not always successful in identifying the organisms. rapid detection of brucella species by an automated blood culture system and polymerase chain reaction (pcr) may l...

background: some dynamic changes occurs during spermatogenesis such as histone removal and its replacement with transition nuclear protein and protamine. these proteins are required for packing and condensation of sperm chromatin. jhdm2a is a histone demethylase that directly binds to promoter regions of tnp1 and prm1 genes and controls their expression by removing h3k9 at their promoters.objec...

  Over the years we have witnessed the growing importance of supply chain operations and supply chain management (SCM), as supply chains play a major role in every step of the product life cycle. Therefore, this paper will DEA-based performance evaluation approaches for overall supply chain can be categorized. Future perspectives and challenges are discussed