Methane, CH4, is a chemical compound composed of one carbon atom and four hydrogen atoms. It is one of the most common gases in the universe, as well as on Earth. While it is valued for its energy-production capabilities, methane also has the ability to potentially wreak havoc on the Earth's fragile ecosystems.ethane, CH4, is a chemical compound composed of one carbon atom and four hydrogen atoms. It is one of the most common gases in the universe, as well as on Earth. While it is valued for its energy-production capabilities, methane also has the ability to potentially wreak havoc on the Earth's fragile ecosystems.
Symptoms of Palindromic rheumatism. The list of signs and symptoms mentioned in various sources for Palindromic rheumatism includes the 6 symptoms listed below: Joint pain. Joint swelling. Joint stiffness. Joint warmth. Skin nodules. Joint redness.
While early symptoms of rheumatoid arthritis can actually be mimicked by other diseases, the symptoms are very characteristic of rheumatoid disease. Rheumatoid arthritis symptoms and signs include the following: 1  Fatigue. 2  Joint pain. 3  Joint tenderness. 4  Joint swelling. 5  Joint redness. 6  Joint warmth. 7  Joint stiffness. 8  Loss of joint range of motion. 9  Limping. 10  Joint deformity. 11  Many joints affected (polyarthritis). 12  Both sides of the body affected (symmetric).