Measuring the 13 neutrino mixing angle and the CP phase with neutrino telescopes.

The observed excess of high-energy cosmic rays from the Galactic plane in the energy range around 10(18) eV may be explained by neutron primaries generated in the photodissociation of heavy nuclei. In this scenario, lower-energy neutrons decay before reaching the Earth and produce a detectable flux in a 1 km(3) neutrino telescope. The initial flavor composition of the neutrino flux, phi(nu(e)):phi(nu(mu)):phi(nu(tau))=1:0:0, permits a combined nu(mu)/nu(tau) appearance and nu(e) disappearance experiment. The observable flux ratio phi(nu(mu))/phi(nu(e)+nu(tau) at Earth depends on the 13 mixing angle theta(13) and the leptonic CP phase delta(CP), thus opening a new way to measure these two quantities.

Empty sella syndrome associated with partial hypopituitarism (visualized on MRI scan).

The empty sella syndrome has become a rather frequent finding in magnetic resonance imaging (MRI) scanning. The usual presentation of empty sella syndrome involves an incidental finding on a computed tomography scan or an MRI scan. It is unusual to find empty sella syndrome associated with hypopituitarism. The authors describe such an unusual finding in a 54-year-old nulliparous woman.

[In-vitro action of manganese on platelet aggregation. Hints on prevention]. / Azione in vitro del manganese sull'aggregazione piastrinica. Spunti di prevenzione.

The AA. carried out some researches on PAT by adding to the plasma the manganic chloride in mu molar, c molar and m molar solution. The platelet aggregation induced by ADP, adrenaline, collagen and thrombofax, makes powerful in presence of manganese salt. The presence of manganic chloride modifies the platelet aggregation in a hyper-aggregated way, slowly and tardly, but clearly. The practical application of experimental results in vitro is certainly very important for prevention planning.