This paper explains how higher-order hierarchies can be used to handle the expression problem. The expression problem is concerned with extending both the set of data structures and the set of operations of a given abstract data type. A typical object-oriented design supports extending the set of data structures, and a typical functional design supports extending the set of operations, but it i...

background: the most important problem in regular transfusion dependent β-thalassemia major is cardiac dysfunction due to iron deposition in it. the aim of this study was to evaluate correlation between serum ferritin levels and cardiac function in β-thalassemia major in mofid hospital. materials and methods: there were 112 β-thalassemia patients with a mean age of 13.55± 6.12 years, of whom 49...

Simulation and application (non-simulation) models used in man-made systems are more and more sophisticated and intellectually demanded to comprehension. To cope with the growing complexity at one hand and capability for comprehension on the other hand, it is necessary to exploit powerful facilities, in the sense of modeling and design, to achieve desired goals. This paper deals with the simula...

the distribution of gallium(b) and indium (b) between hydrochloric or sulphuric acid solution with sec-nonylphenoxy acetic acid(ca-100) in kerosene has been investigated under various conditions. ca-100 is a new organocarboxylic extractant, which has been shown to be efficient for gallium(b) and indium(b) whereas germanium(c), which was not extracted. the extraction system is studied as a funct...

we aimed to compare the therapeutic effect of avonex (av), betaferon (be) & rebif (re) on the expanded disability status scale (edss) in multiple sclerosis (ms). ninety patients referring to farshchian hospital were entered in this study. the patients were divided into three equal groups: group 1 received av, group 2 received re and group 3 received be, and after 24 months, comparison was done ...

We have provided 3-D and 4D mapping of speech and language function based upon the results of direct cortical stimulation and event-related modulation of electrocorticography signals. Patients estimated to have right-hemispheric language dominance were excluded. Thus, 100 patients who underwent two-stage epilepsy surgery with chronic electrocorticography recording were studied. An older group c...