Because total testosterone is a cumulative measure of diffusible and protein-bound testosterone, free testosterone is generally regarded as a more direct assessment of physiological availability (Matsumoto 2001; Rosner et al. 2007).
The major weakness of our study is the lack of availability of more direct markers of environmental exposures, including smoking habits, number and type of infections, females' hormones, anthropometric measures and serological data.
The focus of this study was to examine the effect of single amino acid substitutions on CBS function and the associated impact of cofactor availability in a more direct fashion.
Several justices have in recent years questioned whether the rule still makes sense in light of what they called the increased professionalism of the police and the availability of alternative and arguably more direct ways to punish misconduct, including internal discipline and civil suits.
In both cases, the behavioral manifestation of poor inhibitory abilities is linked to relatively low striatal dopamine D2-like receptor availability, and evidence is accumulating for a more direct contribution of striatopallidal neurons to cognitive control processes.
A focus group study suggested that Australian women aged 16 30 years were in favour of pharmacy availability of the ECP, as faster and more direct access is afforded, particularly on Sundays and for women living in rural and remote locations.
More direct evidence in rats supports an association between reduced D2 receptor availability in the ventral striatum and trait reinforcer-oriented impulsivity [ 19].
This requires a more direct relationship by brands with consumers through social media and through the availability of their products.
Whereas the unemployment and employment growth measures reflect both labor demand and supply, a measure of job advertisements (vacancies) is arguably a more direct measure of labor demand, albeit one influenced by labor supply (worker availability).
Western blotting gives a more direct quantitative of a gene's expression level but depends on the availability of specific antibodies and is less sensitive than RT-PCR.
