Isolation of autochthonous bacteria from marine sources as a potential probiont in biocontroling against pathogenic Vibrio species in the shrimp culture industry was the aim of current research. A total of 198 bacterial strains were isolated from pond water, sediment, hepatopancreas and gut samples of shrimps after culturing the samples on Tryptic Soy Agar and incubated at 30 °C for 24-48 h. Th...

Assuming a generative principle of description for speech utterances, in particular a syllable-based phonological representation and the C/D model of phonetic implementation of uterrances, the basic question is discussed: how abstract phonetic representations as an optimal symbolic description of speech utterances should be. Several examples from a variety of languages in the world, including K...

Teachers’ Status in Iranian Educational System: An Indiginous Model Constructed and Validated M. Mohammadi, Ph.D. G. Salimi, Ph.D. T. Dorri To construct an indiginous model for teachers’ status, a group of experienced teachers was interviewed on the subject and as a result of the initial analyses two general themes were identified: internal and external statuses: tea...

This dissertation explores the biogeochemistry, physiology, molecular biology, and environmental impact of dissimilatory arsenate reducing bacteria. A new species, Desulfotomaculum auripigmentum strain OREX-4, was found to precipitate amorphous arsenic trisulfide (AS2S3)both intraand extracellularly. Intracellular precipitation of AS2S3nucleates precipitation in the bulk milieu, and results fro...