1550-7998=20 The recent measurements of the solar neutrino mixing angle sol and the Cabibbo mixing angle C reveal a surprising relation, sol C ’ 4 , which has been interpreted as an evidence for quark-lepton unification. We show in realizations of quark-lepton unification that the PMNS mixing matrix can be decomposed into a CKM-like matrix and maximal mixing matrices. We explore a possibility t...

The recent experimental measurements of the solar neutrino mixing angle θsol and the Cabibbo mixing angle θC reveal a surprising relation, θsol + θC ≃ 4 . We review that while this empirical relation has been interpreted as a support of the idea of grand unification, it may be merely accidental in the sense that reproducing the relation at a low energy in the framework of grand unification may ...

Fermion compositeness and other new physics can be signalled by the presence of a strong four-fermion contact interaction. Here we present a study of leqq and !&?e’ contact interactions using the reactions: et!? --f e’+e’-, b&, CC at future e+elinear colliders with fi = 0.5 5 TeV and p+pcolliders with 4 = 0.5,4 TeV. We find that very large compositeness scales can be probed at these machines an...

Small-scale patches (locations of 50 cm × 50 cm at a feeding station level) in a bahia grass ( Paspalum notatum ) pasture under cattle grazing were investigated in terms of herbage mass, quality and utilisation during a grazing season (May–November), to characterise the quantityquality relationship of patches and relate this to spatially heterogeneous grazing by animals. Nitrogen concentration ...

A high-energy lepton-lepton collider will give us a unique possibility to study eγ and γγ interactions at high energies. The high-energy photons can be generated by Compton back-scattering of laser light on the high-energy lepton beams. With slightly reduced luminosities for eγ and γγ collisions compared to the lepton-lepton collider one, unique and complementary studies can be performed. A lin...

Claviceps paspali is a fungus that mainly parasitises Paspalum dilatatum, generating structure denominated sclerotium, in which indole-diterpenoid alkaloids are isolated. Its action mechanism related to the inhibition of gamma-aminobutyric acid receptor. It basically affects bovines, triggering tremorgenic syndrome, prevalence this intoxication being relatively low Europe. This work describes c...

in order to indicate the effect of duck's presence, anas platyrhynchos in paddy fields on rice (oryza sativa l.) yield, yield components and its effect on weed density, an experiment was carried out in baz ghaleh dezh village, located in sangar, guilan, iran in 2013. this experiment was performed based on factorial split-plot analysis conducted in a randomized complete block design (rcbd)....