1 Why the test is used: Between 75% and 90% of people with lupus have a positive anti-dsDNA test. 2  Also, the test is very specific for lupus. 3  Therefore, a positive test can be useful in confirming a diagnosis. 4  For many people, the titer, or level, of the antibodies rises as the disease becomes more active.
The zone below ground where the pore spaces are filled with ground water is called the saturated zone. Above the saturated zone, where the pore spaces are not filled with ground water, is the unsaturated zone. The water table marks the boundary between the saturated and unsaturated zone. The water table intersects Earth's surface at rivers and at lakes.
In the saturated zone the pore spaces (or spaces between soil particles or spaces in fractures or openings in rock masses) are completely filled with water, and pressures in the water are greater than atmospheric. Water in the saturated zone is called groundwater.Unlike the unsaturated zone and the capillary fringe, water in the saturated zone will flow to a pumped well. Water table. The water table is the top surface of the saturated zone.n the saturated zone the pore spaces (or spaces between soil particles or spaces in fractures or openings in rock masses) are completely filled with water, and pressures in the water are greater than atmospheric. Water in the saturated zone is called groundwater.