Population genetics. Population genetics is a subfield of genetics that deals with genetic differences within and between populations, and is a part of evolutionary biology. Studies in this branch of biology examine such phenomena as adaptation, speciation, and population structure.
In the fluid-filled case, the wellbore is presumed to be full of either all liquid or gas which gets compressed as afterflow continues into the wellbore. The wellbore storage constant (C) is a function of the wellbore volume (Vw) and the wellbore fluid compressibility (cwb) as shown below: For a fluid-filled wellbore:
Synovial fluid is a transparent, viscid fluid secreted by the synovial membrane and found in joint cavities, bursae, and tendon sheaths. Analysis of synovial fluid aspirated from a joint can confirm or rule out various joint diseases such as traumatic arthritis, osteoarthritis, gout, and rheumatoid arthritis. Causes.ecause of the mass of inflammatory cells in rheumatoid arthritis, the joint appears swollen and feels puffy or boggy to the touch. The increased blood flow that is a feature of the inflammation makes the joint warm. The cells release enzymes into the joint space which causes further pain and irritation.