background and objectives: brucella, causative of brucellosis, has some potential virulence factors involved in brucella replication and its strategies to circumvent the immune response. one of them is the virb gene that encodes the type іv secretion system proteins (t4ss) involved in intracellular replication of organism. brucella virulence factor a ( bvf a), and urease ( ure ) has also been d...

this research had been carried out to ecological characters, phytochemical, anti bacterial and antioxidant activity of thymus carmanicus jalas. in golestan  province .in several field observation, the aerial parts of plant in blooming were collected from deraznoo mountain inseptember 2013 (2700 m). essential oil was obtained by hydro distillation and  analyzed by gc/ms. phytochemical assay incl...

the assessment of the quantitative and qualitative changes, the result of the impacts imposed by natural factors, and human interventions during specific sampling periods has a substantial influence on nature, management method and tending operation of every region’s forests. the present research was carried out in golestan province forests (iran) over an 11- year period and the obtained statis...

abstract investigating economic advantages of people participation in irrigation and drainage network development in fourth area of band-e-amir region was the objective of this study. that area is 3950 hectares. case study was the research method. those farmers who participated and benefited of the project and experts and executors of the project were statistical society of this study. findings...

dena biosphere reserve located in iran and is a 550 biosphere reserve in the worlds. this research was investigated in the two protected and non-protected areas, in a dena biosphere reserve, kohkeloye va boyrahmad province, and central zagros forest, southwest of iran. inventory methods designed by systemetic-randomaiz method by use the rectangular plots that were 15×30 meters in the 100×100 m ...

ninety one monoconidial bipolaris isolates were obtained from lesions on different parts of rice in different locations of mazandaran province during the summer of 2009. bipolaris species were identified using morphological features such as color and shape of colony and color and size of conidia and conidiophores. the isolates were separated into two species; 85 (93.4%) isolates belonged to bip...

white been line wa8592-1 was first introduced in iran through the yield trail nurseries received fron ciat in 1991. in observation nurseries carried out during 1992 and 1993 cropping seasons, ten bean populations were evaluated for yield and other characteristics, and 60 lines were selected. preliminary and advanced yield trails carried out for six years (1995-2000) in four locations khomein, e...

1 Entrepreneurship Academy, Yiwu Industrial & Commercial College No.2 of Xueyuan Rd., Yiwu, Zhejiang province, zip code: 322000 2 School of Transportation and Logistics, Southwest Jiaotong University, No.111 of Northbound Section 1, Second Ring Rd., Chengdu, Sichuan province, zip code: 610031 3 Sichuan Vocational and Technical College of Communications No.111 of Northbound Section 1, Second Rin...