background and objectives: several natural compounds have been identified for the treatment ofleishmaniasis. due to a few safe drugs and the side effects caused by available chemotherapy, some new drugs for treatment of leishmaniasis are requested.  the genus pulicaria (asteraceae) is represented in the flora of iran by five species. phytochemical studies on pulicaria species have revealed some...

background & aims of the study: a feed forward artificial neural network (ffann) was developed to predict the efficiency of total petroleum hydrocarbon (tph) removal from a contaminated soil, using soil washing process with tween 80. the main objective of this study was to assess the performance of developed ffann model for the estimation of   tph removal. materials and methods: several indepen...

Plant-root inhabiting fungi are a universal phenomenon found in all ecosystems where plants are able to grow, even in harsh environments. Interactions between fungi and plant roots can vary widely from mutualism to parasitism depending on many parameters. The role of fungal endophytes in phytoremediation of polluted sites, and characterization of the endophytic diversity and community assemblag...

cultures has not yet been demonstrated, the cytotoxic response suggests that the cells possess a microsomal aryl hydroxylase system, which may also be capable of the conversion of the hydrocarbon to an active carcinogen. MATERIALS AND METHODS Pieces of normal adult human abdominal skin, approximately 4 mm square and 1 mm thick, were grown in a clot of chick embryo extract and plasma (Baltimore ...

Hydrocarbons play a major role in the life cycle of insects. Their composition and concentration can be affected by several factors. are biosynthesized oenocytes subsequently transported to cuticle insects, such as Drosophila suzukii (Matsumura) (Diptera: Drosophilidae). As extraction procedure markedly affects type amount hydrocarbon obtained we determined association between time taken extrac...

The effect of the surfactant, alpha-[4-(1,1,3,3-tetramethylbutyl) phenyl]-omega-hydroxypolyoxy-1,2-ethanediyl, on the adsolubilization of cholesterol and/or dotriacontane as model compounds of the epicuticular wax of mature tomato (Lycopersicon esculentum Mill.) fruit was investigated. Cholesterol as a model compound of such triterpenols as alpha- and beta-amyrins was solubilized in a concentra...

Petroleum hydrocarbon contamination is a major global prevalent issue in the petroleum sector. This research focuses on evaluating biodegradation of three Gram-negative bacilli, isolated from cowpea planted soil, contaminated with kerosene. The Gram negative bacilli strains have been characterized and identified, using MicrobactTM ID24E systems for the identification of Enterobacteriaceae and c...

The article presents experimental studies on the methane pyrolysis process in a 30 cm layer of molten tin. experiments were carried out specially made setup temperature range from 800 °С to 1000 °С, at pressure 4.5 atm, and with gas flow rate 3 l/h. dependence hydrogen concentration, methane, its derivatives (ethane, ethylene, acetylene) produced mixture hydrocarbon gases has been obtained.