The article comes to the conclusion that brands can benefit from having a presence in Facebook and other Social Network Sites (SNS) if the objectives and the nature of the brand suit the environment. This study identifies the relations between tribalism and tribal marketing by analysing consumer behaviour and the formation of the tribes within a Facebook and blog environment. Studying one natio...

We summarize three alternative extensions of the quark-valence picture of nucleon strangeness and spin, including (1) gluon spin in QCD, (2) Bjorken sum rule and QCD, (3) D–E meson mixing and tadpole leakage. All three approaches suggest that ∼ 40% of the nucleon’s spin (as well as its momentum) resides with quarks, but that less than 6% is due to strange quarks.

B → πlν decay is studied in the effective theory of heavy quark with infinite mass limit. The leading order heavy flavor-spin independent universal wave functions which parameterize the relevant matrix elements are evaluated via light cone sum rule method in the effective theory. The important quark mixing matrix element |V ub | is then extracted via B → πlν decay mode.