Two independent quark-model predictions of the A magnetic moments, in agreement with one another and with experiment to 1%, are obtained by using two different inputs for SU(3) breaking in quark masses: (1) (m, /m„) =(Mq. —Mq)/(M~-Mn); and (2) m, —ni„ =M p, —Mz. I discuss the implications of the surprising sucess of a description of quark magnetic moments as Dirac moments with quark masses rela...

Case Description- A 2-yr-old intact male donkey (Equus asinus) was presented to Hospital of Veterinary Medicine, Mansoura University with subcutaneous masses under the tail. Clinical Findings- Physical examination revealed the presence of 2 separate 5x10 and 5x8-cm-diameter, round and firm subcutaneous masses. Treatment and Outcome<...

Some gastropod specimens belonging to the planorbid genus Ferrissia were recently collected in Lebanon and in Iraq, where the autochthonous species Ferrissia clessiniana (Jickeli, 1882) is supposed to occur. The molecular identification of collected specimens proved that they belong to the allochthonous species Ferrissia fragilis (Tryon, 1863), the protagonist of a dramatic cryptic invasion whi...

In a previous communicat ion (1) we presented da ta indicat ing tha t cardiac lesions, closely resembling those characteris t ic of rheumatic fever in man, had been induced in a small propor t ion of rabbi ts t ha t had undergone mult iple , successive skin infections with group A streptococci of several serological types. How the hypothesis leading to those experiments evolved is described els...

The quark and charged lepton masses and the angles and phase of the CKM mixing matrix are nicely reproduced in a model which assumes O(3) ⊗ O(3) flavour symmetry broken by the v.e.v.’s of fields in its bi-fundamental representation. The relations among the quark mass eigenvalues, mu/mc ≈ mc/mt ≈ m2d/m2s ≈ m2s/m2b ≈ Λ2GUT/M2 Pl, follow from the broken flavour symmetry. Large tanβ is required whi...