https://www.um.edu.mt/library/oar/handle/123456789/43914 Sat, 04 Apr 2026 17:10:33 GMT 2026-04-04T17:10:33Z https://www.um.edu.mt/library/oar/handle/123456789/44045 Title: Meningiomas Abstract: Harvey Cushing showed that these tumours are found at the sites of arachnoid granulations and on histological examination, there is so much resemblance between the structure of the tumour and that of normal granulation that the arachnoid cells are regarded as the origin of the majority oi this group of neoplasms. They tend to be related to major venous sinuses and commonly arise parasagitally or on the base of the skull. Another common site is the sphenoid ridge. Rarely a meningioma may arise from the tela choroidea and appear as an intraventricular tumour. Thu, 01 Jan 1976 00:00:00 GMT https://www.um.edu.mt/library/oar/handle/123456789/44045 1976-01-01T00:00:00Z https://www.um.edu.mt/library/oar/handle/123456789/44044 Title: A few facts about the EBV Abstract: The EBV as it is now known is none else than the Epstein-Barr Virus. The name was derived from those of the two groups of workers who independently observed the virus under the electron microscope for the first time. Thu, 01 Jan 1976 00:00:00 GMT https://www.um.edu.mt/library/oar/handle/123456789/44044 1976-01-01T00:00:00Z https://www.um.edu.mt/library/oar/handle/123456789/44043 Title: Cyclic amp : the ubiquitous hormone Abstract: It is now being claimed that many hormones act by way of a two-messenger system. The hormones may be regarded as first messengers which travel from their cells of origin to their target tissues to stimulate the formation therein of a second, intracellular messenger. Although one cannot exclude that other second messengers will eventually be discovered, the only one identified so far is cyclic adenosine 3', 5' monophosphate, or cyclic AMP. The function of this cyclic nucleotide as second messenger mediating the effects of a variety of hormones and other biologically active agents has now been definitely proved. Since the recognition of its physiological role, from the discovery that it mediated the hyperglycaemic effect of adrenaline and glucagon by stimulating the conversion of inactive to active glycogen phosphorylase, work in many lalboratories has established both the ubiquity of cAMP in living organisms and the large number of its regulatory mechanisms. Thu, 01 Jan 1976 00:00:00 GMT https://www.um.edu.mt/library/oar/handle/123456789/44043 1976-01-01T00:00:00Z https://www.um.edu.mt/library/oar/handle/123456789/44034 Title: A new look at amputations and amputees Abstract: Malta is a country where one talks of impressions, where rumours abound and where facts, pure facts are quite hard to come by. There are several reasons for this state of affairs: if we limit ourselves to medical matters the main ones are a lack of a proper records system and the difficulty of looking up figures and suchlike on account of one's many other commitments. Trollpe says somewhere or other that happiness consists of having twelve hours work to do and only six hours to do it in. We are in this sense extremely happy: in fact we are laughing, but research is not carried out under these conditions. Description: This was a talk given by Mr. Parnis at the Medical School Conference Hall on the 24th January, 1975. Mr. Parnis was the first local holder of the BMA-RUM Travelling Scholarship. Thu, 01 Jan 1976 00:00:00 GMT https://www.um.edu.mt/library/oar/handle/123456789/44034 1976-01-01T00:00:00Z