Word: fluids
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...tubes. Fitted with a small leather harness to which a strong, lightweight string was attached, Felicia unhesitatingly scurried the full length of the tube. She delivered her end of the string to workmen, who tied it to a swab consisting of a brush and cloth soaked in cleaning fluid. The swab was then pulled back through the length of the pipe, leaving the interior immaculate...
...Saline induction, which is used between the 16th and 24th weeks of pregnancy, is one of the more drastic means. A doctor inserts a needle through the patient's abdomen into the uterus, draws off most of the amniotic fluid in which the fetus floats and replaces it with a salt solution. The saline substance kills the fetus, and then a miniature labor begins-with real pain-and continues until the fetus is expelled some 24 to 72 hours later...
...Baltimore program owes its origin to several recent scientific discoveries in the field of molecular biology. One was the identification of the enzyme hexosaminidase-A, the lack of which causes Tay-Sachs disease. Another was the development of a technique for taking cells from the amniotic fluid, the clear, amber liquid in which the developing fetus floats, and analyzing the cells for the presence-or absence-of the essential enzyme. The most important step, however, was perfecting a simple blood test to identify adults who carry the defective gene but are themselves unaffected...
...Laboratory in California, had seen in his own lab the same flashes of light that astronauts see in space when their eyes are closed. Furthermore, he said, the experiment showed that atomic particles were causing the flashes -not through impact with the optic nerve or passage through the eye fluid, but by penetrating the retina itself...
...three base their finding on observations and X-ray photographs of 17 patients who volunteered to have their finger joints stretched on a specially designed machine. The tests showed that stretching increases the space between the finger bones, thus reducing pressure on the clear, viscous synovial fluid that lubricates the joints. This causes tiny gas bubbles to form within the fluid. As the pressure continues to decrease, these bubbles burst and release their energy as noise. The gas does not escape. Instead, as the joint returns to normal position, the gas is reabsorbed into the synovial fluid over a period...