asthma, juvenile diabetes mellitus, or cancer. As described by the authors, most studies have focused on main effects, with varied results. Either investigators did not consider potential moderating variables or the samples in these studies were too small to test meaningfully for interactions. With increasingly limited resources in the age of “managed care,” individual differences in responses ...

LTRAVIOLET irradiation produces dimers of thymine, thymine-cytosine and cytosine in deoxyribonucleic acid (DNA) (BEUKERS, IJLSTRA and BERENDS 1960; WACKER, DELLWEG and WEINBLUM 1960; SETLOW, CARRIER and BOLLUM 1965). UV light inactivates transforming DNA and induces thymine dimers in a parallel manner, as if the dimers block transforming activity (SETLOW and SETLOW 1962). Thymine dimers and thy...

THE STRESS RESPONSE SYSTEM (SRS) has a central role in orchestrating physical and psychosocial development of both humans and nonhuman species (Ellis, Jackson, & Boyce, 2006; Korte, Koolhaas, Wingfield, & McEwen, 2005). For many organisms, the SRS contributes crucially to responding flexibly to environmental opportunities and challenges. One of the most remarkable features of the SRS is the wid...

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