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.
Because saliva sampling is non-invasive and salivary cortisol is highly correlated with plasma cortisol (Beerda et al., 1996), salivary cortisol can be used as a measure of HPA activity at convenient and meaningful times of the day in naturalistic settings (Kirschbaum and Hellhammer, 1994).