No Quagmires. President Ronald Reaganâs âsecretâ war against the Nicaraguan Contras was secret precisely because he was afraid the American public would no longer support him after Vietnam, writes Harvard political scientist Richard Sobel in his book The Impact of Public Opinion on U.S. Foreign Policy Since Vietnam..
Saliva testing is a diagnostic technique that involves laboratory analysis of saliva to identify markers of endocrine, immunologic, inflammatory, infectious, and other types of conditions.s with other diagnostic testing methods, one drawback of saliva testing is the variability that exists among diagnostic devices and laboratory analysis techniques, especially for measuring hormones.
Evaluating the oral environment should include the assessment of both stimulated and unstimulated saliva pH, consistency of saliva, the quantity or flow production, and the buffering capacity of saliva. Pathogen specific tests require saliva sample collection and incubation for 48 hours before results can be assessed.aliva is the body's natural defense for the oral cavity. Saliva plays a key role in lubrication and remineralization and demineralization stages throughout the day. Composition of saliva, its buffering capacity, and the antimicrobial properties can be factors in the relationship to caries.