Incompleteness and background are two important types of variance found in images of objects. It has been proposed that a bidirectional network within the visual cortex allows organisms to cope with this variability. In this thesis, the problems of incompleteness and background are defined in detail and various bidirectional (feedforward and backprojecting) network solutions are proposed and di...

LEOPARD syndrome is an autosomal dominant hereditary disease, which is characterized with cutaneous pigmented patches, electrocardiographic changes, ocular hypertelorism, retarded growth, pulmonic stenosis, genital abnormalities and congenital deafness. The gene of this disease have high penetrance but expression is varied and incomplete forms may be seen. We report a 23 year-old woman wi...

299 cases of incomplete abortions were admitted to jahanshah saleh hospital, razi medical school university of tehran during the period of october 10, 1973 to november 24, 1974. all were treated with single dilatation and curettage. the patient groups were roughly half outpatient and half inpatient. the information was recorded on standard forms and computed by the international fertility resea...

During the formation of incomplete fowl plague virus, normal amounts of viral compounds are synthesized. The S-antigen, however, cannot be demonstrated within the cytoplasm in appreciable amounts by fluorescent antibody. The oligonucleotide pattern and the specific radioactivity of the ribonucleic acid (RNA) of incomplete forms are almost identical with those of standard virus. In contrast to c...