Cancer and cancer treatment can make a person more susceptible to infection and increase the risk of gum disease. Alcohol affects oral defense mechanisms. Stress impairs the body's immune response to bacterial invasion.
Magnetometry. Detailed magnetic survey known as magnetometry is an effective and efficient geophysical survey technique used to define areas of past human activity by mapping spatial variations and contrast in the magnetic properties of soil, subsoil and bedrock.
Differential Manometer. an instrument for the determination of pressure differences (gradients); it is also used to determine from pressure gradients the levels of liquids and the flow rates of liquids, vapors, or gases.ifferential manometer. (engineering). An instrument in which the difference in pressure between two sources is determined from the vertical distance between the surfaces of a liquid in two legs of an erect or inverted U-shaped tube when each of the legs is connected to one of the sources.