T-helper (Th) 2-type cytokines predominate in decidua, plausibly accounting for protection of a semiallograft, the embryo and placenta, from attack by the maternal immune system. However, localization of Th2 and T-cytotoxic (Tc) 2 cells in decidua has not been reported, presumably because of the difficulty in detecting intracellular cytokines in tissues. Here, by staining tissues for a novel su...

Many types of physics beyond the standard model include an extended electroweak gauge group. If these extensions are associated with flavor symmetry breaking, the gauge interactions will not be flavor-universal. In this note we update the bounds placed by electroweak data on the existence of flavor non-universal extensions to the standard model in the context of topcolor assisted technicolor (T...

We study the rare top decays t → clilj(l = τ, μ, or e) in the framework of topcolor-assisted technicolor(TC2) models. We find that the neutral top-pion π t can produce significant contributions to these processes via the flavor changing couplings π t t̄c and π 0 t lilj . For the π 0 t mass mπt = 150GeV and the parameter ε = 0.08, the branching ratio Br(t→ cττ) can reach 7.1×10−7. Taking into acc...

Every day, 16 American youths between the ages of 10 and 24 years are murdered; 84% of these fatalities involve a firearm. Nearly half of traumatic youth deaths result from violence-related injuries. In 2013, 580,250 youth suffered nonfatal, assault-related injuries, necessitating emergency department treatment. The aim of this multisite pilot study was to examine the process, feasibility, and ...

Many types of physics beyond the standard model include an extended electroweak gauge group. If these extensions are associated with flavor symmetry breaking, the gauge interactions will not be flavor-universal. In this note we update the bounds placed by electroweak data on the existence of flavor non-universal extensions to the standard model in the context of topcolor assisted technicolor (T...

Many models, such as topcolor-assisted technicolor (TC2) models and flavoruniversal TC2 models, predict the existence of extra U(1) gauge bosons Z ′, which couple preferentially to the third generation. The lepton flavor violating (LFV) signals of these new particles at the future e+e− colliders (LCs) are discussed via calculating its contributions to the LFV process e+e− → μτ . We calculate th...

The top-pions(Π) and the top-Higgs(HTC) are the typical particles predicted by the topcolor-assisted technicolor (TC2) model and the observation of these particles can be regarded as the direct evidence of the TC2 model. In this paper, we study two pair production processes of these new particles, i.e., ee → HTCΠ 0 and ee → ΠΠ. The results show that the production rates are at the level of serv...

We consider the flavor changing neutral current(FCNC) process e+e− → t̄c(or tc̄) in the context of topcolor-assisted technicolor(TC2) models. We find that the contributions of charged scalars (technipions and top-pions) and topcolor gauge bosons are negligibly small. The neutral scalars (top-pion π0 t and top-Higgs h 0 t ) can give significant contributions to this process. With reasonable values...

In the context of topcolor-assisted techicolor(TC2) models, we study the contributions of the neutral top-pion π t to the lepton flavor violating(LFV) processes li → ljγ and li → lj lkll. We find that the present experimental bound on μ → eγ gives severe constraints on the free parameters of TC2 models. Taking into account these constraints, we consider the processes li → lj lkll generated by t...

In the context of topcolor-assisted techicolor(TC2) models, we study the contributions of the neutral top-pion π t to the lepton flavor violating(LFV) processes li → ljγ and li → lj lkll. We find that the present experimental bound on μ → eγ gives severe constraints on the free parameters of TC2 models. Taking into account these constraints, we consider the processes li → lj lkll generated by t...