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Nor should anyone use oils near the eyes or mouth , since irritation of the skin and membranes may occur . Specific gravity reflects the amount of shell present relative to the amount of albumen , yolk , and membranes . While 80 percent of people who are infected with the virus will have no signs or symptoms or may only have a mild illness , the virus can lead to inflammation of the brain , or encephalitis , inflammation of the membranes and fluid surrounding the brain and spinal cord , or meningitis , or inflammation of the brain and membranes surrounding the brain , called meningoencephalitis as well as muscle paralysis in one in 140 people with normal immune function . By grouping amphiphiles together into differently configured clumps , or membranes , and exposing them in a controlled manner to water , heat , light , and other elements and conditions , Balazs ? Processes to reclaim wastewater could involve sand filters and membranes . The activity comprises experimental and theoretical studies in the field of structure and function of thin organic films , and other soft architectures ( such as micelles , vesicles and membranes ) related to the material sciences , as well as inorganic-organic nanocomposites and mesoporous materials .