Tim still drinks, and there are still no marriage plans, yet Sara is more devoted to him than she ever was. She says that being forced to choose taught her that Tim really is number one in her heart. So, after choosing Tim over her other boyfriend, Sara became happier, even though the conditions under which she had made her choice have never been fulfilled. Obviously, horse- race bettors are not alone in their willingness to believe in the correctness of a dif- ficult choice once made. Indeed, we all fool ourselves from time to time in order to keep our thoughts and beliefs consistent with what we have already done or de- cided (Brinol, Petty, 8z Wheeler, 2006; Mather, Shafir, 8z Johnson, 2000; Rusbult et WHIRRING ALONG _ al., 2000). For instance, immediately after casting a ballot, voters believe more strongly that their candidate will win (Regan 8{ Kilduff, 1988). Whirring Along
etal muscle, is not fully inhibited by and can vitro and intracellular Ca2+ concentrations, degrade calpastatin (Ono et al. 2004); some researchers doubt that calpains alone however, its role in postmortem aging is not are responsible for aging of meat. Furthermore, fully understood (Parr et al. 1999; Ilian et al. purification of calpains and calpastatin is dif- 2000, 2001a, b, 2004; Stevenson et al. 2002; ficult to accomplish, and techniques for mea- 90 Chapter 4 suring calpain under different pH/temperature Ladrat et al. 2006). The proteasome, first and ionic strength combinations may not isolated in 1980 (Wilk and Orlowski 1980), provide an accurate estimation of activity is a barrel-shaped polypeptide structure with because of precipitation of calpain or the active sites in its interior core (Mykles and alteration of the interaction with substrates
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