ABSTRACT
A program in BASIC for calculation of intraocular lens power, derived from previously published formulas, is presented for use on small computer systems.
Subject(s)
Computers , Lenses, Intraocular/methods , Optics and Photonics , HumansABSTRACT
In chronic myelocytic leukaemia (CML), the pleura is a most uncommon site of extramedullary involvement. A 34-year-old man with CML presented with a massive pleural effusion. His peripheral blood contained few blast cells and the leucocyte alkaline phosphatase level was low. Cytological examination of the pleural fluid revealed cells with the morphological features of myeloblasts and monoblasts. The patient was treated with systemic chemotherapy, with no effect on the leukaemic pleural effusion.
Subject(s)
Leukemia, Myeloid/complications , Pleural Effusion/etiology , Adult , Antineoplastic Agents/therapeutic use , Chronic Disease , Humans , Leukemia, Myeloid/blood , Leukemia, Myeloid/drug therapy , Male , Pleural Effusion/cytology , Pleural Effusion/diagnostic imaging , RadiographyABSTRACT
Twenty-five arthropod defensive chemicals were tested on a potential fish predator to assay basic repellency, interniche effectiveness and mimetic interactions among repellents, and predator tolerance to repellents.The defensive secretions of aquatic arthropods are more effective repellents than those of terrestrial or cryptozoic arthropods. Phenolic compounds are more effective than carbonylic or acidic compounds. Repellency is most effective in compounds of reduced water solubility. Repeated exposure to gradually increasing molar concentrations of benzoic acid resulted in a greater acceptability of this compound to fish predators. It is suggested that Mullerian mimicry systems based on large numbers of species may be susceptible to dilution effects in terms of effectiveness.