However, causality remains tenuous because of the strong possibility of reverse causation (healthy individuals selectively participate in social activities).
This is followed by the kinetic resolution step whereby the chiral catalyst selectively participates in SN2′ reaction with only one enantiomer of the activated starting material.
Reports in various brain areas demonstrate that single neurons selectively participate in oscillatory periods of the LFP by phase locking (Eckhorn and Obermueller 1993; Baker et al. 1997; Destexhe et al. 1999; Fries et al. 2001; Lee et al. 2005), where occasionally the autocorrelations of the spike trains themselves become oscillatory (Murthy and Fetz 1996b; Lebedev and Wise 2000).
The ability of p66Shc to attenuate CXCR4- and CXCR5-dependent chemotaxis was further enhanced by PTX and IBMX, as well as by PP2 and wortmannin, but not by AG490 (Supplementary Figure S3), indicating that p66Shc selectively participates in the Src and PI3-K pathways triggered by these receptors downstream of Gi activation.
Mr. Perry of Endeavor encourages up-and-coming clients to participate, selectively, in marketing campaigns.
"I don't think we're gonna change much, our strategy from our second fund, this gives us a little more flexibility to participate selectively in opportunities beyond the seed stage," Shapiro said.
If subfertile men with low or high receptor activities were selectively declining to participate, the findings would be biased.
The prevalence of HCV and, possibly, the association with acupuncture history might have been overestimated in our survey if people with liver disease or those being afraid of the possible dangers of acupuncture had selectively accepted to participate.
For these enzymes, the auxiliary domains [ketoreductase (KR), dehydratase (DH), enoylreductase (ER) and others] are not involved in every condensation cycle but participate selectively in specific cycles in a predetermined manner, to yield a wide array of possible structures (Hertweck, 2009).
