Serum immunoglobulin tests may be used in the assessment of conditions associated with chronic inflammation (eg. rheumatoid arthritis, systemic lupus erythematosus, autoimmune liver disease) or chronic infections (eg.hepatitis C, HIV).erum immunoglobulin tests may be used in the assessment of conditions associated with chronic inflammation (eg. rheumatoid arthritis, systemic lupus erythematosus, autoimmune liver disease) or chronic infections (eg. hepatitis C, HIV).
Nitrogen is classified as an element in the 'Non-Metals' section which can be located in groups 14,15 and 16 of the Periodic Table. Non-metallic elements exist, at room temperature, in two of the three states of matter: gases (Oxygen, Hydrogen & Nitrogen) and solids (Carbon, Phosphorus, Sulfur and Selenium).
Non-biological natural nitrogen fixation. Nitrogen can be fixed by lightning converting nitrogen and oxygen into NOx (nitrogen oxides), if there is oxygen in the air. NOx may react with water to make nitric acid, which may end up in the soil, where it makes nitrate, which is of use to growing plants.