Some VR systems used in video games can transmit vibrations and other sensations to the user through the game controller. Virtual reality also refers to remote communication environments which provide a virtual presence of users with through telepresence and telexistence or the use of a virtual artifact (VA).
Lupus nephritis symptoms are similar to those of other kidney diseases. They include: 1  dark urine. 2  blood in urine. 3  foamy, frothy urine. 4  having to urinate often at night. 5  puffy feet, ankles, and legs that gets progressively worse as the day goes along. 6  gaining weight. 7  high blood pressure.
The cause(s) of systemic lupus erythematosus is (are) unknown, however, heredity, viruses, ultraviolet light, and drugs all may play some role. Lupus symptoms and signs include. butterfly rash on the face, appetite loss, joint pain, hair loss, fever, fatigue, photosensitivity, Raynaud's phenomenon, pleuritis, and; pericarditis.