Coal bed natural gas (CBNG) produced water is usually disposed into nearby constructed disposal ponds. Geochemistry of produced water, particularly trace elements interacting with a semiarid environment, is not clearly understood. The objective of this study was to collect produced water samples at outfalls and corresponding disposal ponds and monitor pH, iron (Fe), aluminum (Al), chromium (Cr)...

conclusions the achieved findings from this comparison between botanical characteristics and therapeutic activities of stachys based on modern researches and those of marmazad by referring to traditional manuscripts revealed significant similarities between them. also, there were some applications mentioned for marmazad in tim which could help new researchers in modern phytotherapy to deal with...

We examine the evolutionary history and speculate about the evolutionary future of three basic life history ecotypes that contribute to the biocomplexity of sockeye salmon (Oncorhynchus nerka). The 'recurrent evolution' (RE) hypothesis claims that the sea/river ecotype is ancestral, a 'straying' form with poorly differentiated (meta)population structure, and that highly structured populations o...

Chickpea (Cicer arietinum L.) is one of the most important legume crops in Iran. Wilt disease caused by Fusarium oxysporum f. sp. ciceri, is the most important soil-borne disease of chickpea in the world. This disease caused high losses in different regions during recent years. Simple sequence repeat (SSR) were used to estimate genetic diversity in 114 of F. oxysporum isolates from six counties...

Ре у ма то ид ни ар три тис (РА) је хро нич на запа љењ ска бо лест не по зна те ети о ло ги је, мулти фак тор ске па то ге не зе, про мен љи вог клинич ког то ка и не из ве сне прог но зе, ко ја се од ли ку је упор ним си но ви ти сом и про гресив ном де струк ци јом за хва ће них згло бо ва [1]. Не по врат но оште ће ње згло бо ва на ста је већ у пр вим ме се ци ма по обо ле ва њу, а трајна н...

Objective: Mashhad metropolis as the second largest religioncity in the world and the second largest metropolis of Iran with an annual 3 million pilgrims have significant direct and indirect effects on the watershed leading to the city and surrounding over the past four decades. There is no collection system and sanitation disposal network in towns and villages within the Torghabeh River.  Meth...

the biodegradation of secondary amines is particularly important due to their propensity for conversion either chemically or microbiologically to n-nitrosamines which are potent carcinogens. in this research, a weak gram-positive organism was isolated from river and identified as mycobacterium. this mycobacterium grows slowly and effectively utilizes piperazine as the sole source of organic, ca...