On heating pure, fully saturated 2,3-diacyl-DL-phosphatidyl-ethanolamines and 2,3-diacylphosphatidyl-cholines (lecithins) in water to the transition temperature at which large endothermic heat changes occur, they are observed, by light microscopy, to form myelin figures. This result is discussed in terms of the large difference in the transition temperature for "melting" of the hydrocarbon chai...

Abstract Unconventional geo-resources are critical due to their important contributions energy production. In this transition and sustainability era, there is an increased focus on CO 2 -enhanced oil recovery (CO -EOR) geological storage (GCS) in unconventional hydrocarbon reservoirs, the extraction of hot fluid for through enhanced geothermal systems. However, these solutions can only be achie...

VASELINE oil intoxication is a known cause of exogenous lipoid pneumonia. Vaseline oil is a mixture of saturated aliphatic (C14–C18) and cyclic hydrocarbons that is insoluble in water and, in the alveolar space, activates an acute inflammatory response with edema and interstitial fibrosis. Because the hydrocarbons cannot be metabolized in humans, the therapy consists of limiting or decreasing t...

Experiments were done to determine if bacteria able to utilize phenanthrene as a sole source of carbon obtain the hydrocarbon directly from solid phenanthrene particles suspended in the medium or from the phenanthrene dissolved in the medium. Growth experiments were done in gas-tight fermentors completely filled with air-saturated, mineral salts solution with phenanthrene as the substrate. Gene...

Inter-colonial aggression was tested using three colonies of Scaptotrigona bipunctata in a natural setting when their nests were moved and by artificial contact between individuals. Examination of the cuticular lipids of individuals from two colonies kept under identical conditions showed clear differences in their cuticular hydrocarbon profiles. The cuticular lipids were a mixture of hydrocarb...

Gasification was chosen as one of the more conventional methods for conversion of biomass due to some important reasons such as space consideration, flexibility of fuels used, reducing the volume of solid waste and recovery of energy. Essentially, the process of gasification involves partial combustion of the organic part of the fuels to combustible gas rich in carbon monoxide, hydrogen and som...

Hydrocarbons used as solvents in industry are thought to have effects on respiratory system. However, its effect on tracheal morphology and function is poorly investigated. Therefore the present study attempted to investigate the rat tracheal structure following different types and concentrations of hydrocarbon exposure. To do this, 65 Swiss albino rats were divided into 6 groups. While control...

A concern about the declining supply of petroleum products has led to a renewed interest in evaluating plant species as potential alternate sources of energy. Five species of the Apocynaceae and three species of the Asclepiadaceae from the Western Ghats were evaluated as alternative sources of energy, oil, polyphenol, and phytochemicals. The highest protein content was observed in Caralluma att...