Equivariant transversality phenomena are studied for PL locally linear actions of the group with two elements. In this setting with stability assumptions, the obstruction to making a given map f : M ! N transverse to the xed set N Z 2 is given by an element of Sect(BL(M ; N) # M Z 2), i.e. a generalized cohomology class with twisted coeecients. Here BL(M ; N) is a spectrum whose homotopy groups...

We study a constrained percolation process on Z, and prove the almost sure nonexistence of infinite clusters and contours for a large class of probability measures. Unlike the unconstrained case, in the constrained case no stochastic monotonicity is known. We prove the nonexistence of infinite clusters and contours for the constrained percolation by developing new combinatorial techniques which...

We study a mechanism of symmetry transition upon compactification of 5-dimensional field theory on S/Z2. The transition happens unless all components in a multiplet of a symmetry group have a common Z2 parity on S /Z2. This mechanism is applied to a breakdown of SU(5) gauge symmetry in grand unified theory and phenomenological implications are discussed. ∗e-mail: [email protected]

The present experiments examine the potential role of auditory spectral integration and spectral center of gravity (COG) effects in the perception of initial formant transitions in the syllables [da]-[ga] and [t(h)a]-[k(h)a]. Of interest is whether the place distinction for stops in these syllables can be cued by a 'virtual F3 transition' in which the percept of a frequency transition is produc...

The occurrence of adventitious roots is necessary for the survival cuttings. In this study, comparative transcriptome analysis between two ramie (Boehmeria nivea L.) varieties with different root (AR) patterns was performed by mRNA-Seq before rooting (control, CK) and 10 days water-induced (treatment, T) to reveal regulatory mechanism rooting. Characterization cultivars, Zhongzhu No 2 (Z2) Huaz...

Immunization strategies that generate either CD4 or CD8 T cell responses are relatively well described, but less is known with regard to optimizing regimens to induce both CD4 and CD8 memory T cells. Considering the importance of both CD4 and CD8 T cells in the control of intracellular pathogens such as Leishmania donovani, we wanted to identify vaccines that could raise both CD4 and CD8 T cell...

we consider a 2-dimensional representation of the hecke algebra h(g7; u), whereg7 is the complex re ection group and u is the set of indeterminatesu = (x1; x2; y1; y2; y3; z1; z2; z3):after specializing the indetrminates to non zero complex numbers, we then determine a nec-essary and sucient condition that guarantees the irreducibility of the complex specializationof the representation of the ...

Modulation of the sonic hedgehog (SHH) pathway is a crucial factor in cerebellar morphogenesis. Stimulation of granule neuron progenitor (GNP) proliferation is a central function of SHH signalling, but how this is controlled locally is not understood. We show that two sequentially expressed members of the contactin (CNTN) family of adhesion molecules, TAG1 and F3, act antagonistically to contro...