Effusion is the movement of gas molecules through a small opening into an area of lower pressure.Thomas Graham, a Scottish chemist studied effusion and diffusion of gases and found that lighter gases move faster than denser gases. Based on his...

In chemistry, effusion is the process where individual molecules flow through a hole without collisions between molecules. This will occur if the diameter of the hole is considerably smaller than the mean free path of the molecules[1]. According to...

CLINICAL EXPOSURES PEER-REVIEWED Pleural effusion, an abnormal accumulation of fluid within the pleural cavity, is usually not a primary problem in cats but is often secondary to another disorder?1-9 The cytologic makeup of the fluid can be noninflammatory or inflammatory. The fluid...

Last month JUNE THOMPSON looked at the causes, symptoms and treatment of acute otitis media - inflammation of the middle ear, which particularly affects young children. In her second and concluding article, she examines otitis media with effusion, commonly known as glue ear Community...

The welcome for Fred Thompson wasn't just warm, it was effusive.The former Tennessee senator and actor is still weighing whether to run for the GOP presidential nomination but House Republicans who met with him Wednesday gushed over the prospects of Thompson candidacy.They called him presidential,...

Women of New York emit a mighty mass moan as George Clooney arrives at the Ziegfeld for the premiere of Michael Clayton, his new film about a corporate law firm in New York. (And pssst: It’s good!) Also present: his never-aging co-star Tilda Swinton, who’s...