We propose and discuss a new Littlest Seesaw model, realised in the tri-direct CP approach, in which the couplings of the two right-handed neutrinos to the lepton doublets are proportional to (0, −1, 1) and (1, 5/2, −1/2) respectively with the relative phase η = −π/2. This model can give an excellent description of lepton flavour mixing, including an atmospheric neutrino mixing angle in the second octant, in terms of only two input parameters. We show that the observed baryon asymmetry can be generated for the lightest right-handed neutrino mass M 1 = 1.176 × 10 11 GeV in SM and M 1 = 3.992 × 10 10 GeV in MSSM with tan β = 5. We construct an explicit Littlest Seesaw model based on the flavour symmetry S 4 × Z 4 × Z 9 in which the desired alignments and the phase η = −π/2 are achieved. *

We perform a systematical study of the dimension-9 short-range 0νββ decay operators at one-loop level. There are only six genuine topologies which generate eight diagrams, and the recipe to identify the possible one-loop realizations of the 0νββ decay operators is sketched. Certain hypercharge assignments are excluded by the absence of tree-level diagrams in a genuine one-loop model. The mediators of each decomposition can generate Majorana neutrino masses which are discussed up to two-loop level. We present an example of 0νββ decay model in which the neutrino masses are generated at two-loop level, and the short-range contribution can be comparable with the mass mechanism in some region of parameter space.

A series of new conjugates of indomethacin with phenolic antioxidants were synthesized for enhanced antiinflammatory activity as well as reduced ulcerogenic potency. It was found that all conjugates were very potent antioxidants in vitro. They could inhibit lipid peroxidation significantly, while 11b-11e and 13b-13e could also interact with DPPH. However these conjugates showed little inhibition against croton oil induced mouse ear swelling.

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