Classical acoustic and elastic wave scattering problems from an acoustically rigid or soft cylinder are revisited. The behavior of phases as well as magnitudes of each partial waves and form functions are numerically analyzed and discussed. The effect of mode conversion, especially, on the phases of each partial waves in elastic wave scattering is identified.

The last few years activity of the Italian community concerning nuclear physics with electroweak probes is reviewed. Inclusive quasi-elastic electron-scattering, photon end electron induced oneand two-nucleon emission are considered. The scattering of neutrinos off nuclei in the quasi-elastic region is also discussed.

The general form of the cross section as well as the polarizations of electron-deuteron elastic scattering are given. Two-photon exchange effects are analyzed. Possible signatures of the two-photon exchange effects in the electron-deuteron elastic scattering are discussed. PACS: 13.40.GP, 25.30.-c, 25.30.Bf, 24.70.+s, 13.60.Fz