Currently, the only discipline that has dealt with scientific representations— albeit non-structural ones—is mathematics (as distinct from logic). I suggest that it is this discipline, only vastly expanded based on a new, structural, foundation, that will also deal with structural representations. Logic (including computability theory) is not concerned with the issues of various representations...

background: chronic idiopathic urticaria is defined as urticaria, which lasts for more than 8 weeks and has no apparent etiology. the aim of this study was to examine the causal role of helicobacter pylori infection in chronic idiopathic urticaria.   methods: fifty-six patients with chronic idiopathic urticaria and a negative response to skin prick test for common aeroallergens were selected. t...

Background: In this study, the effects of three structural analogues of adenosine upon proliferation of human tumor cells were investigated. Previous research showed a cytotoxic effect of adenosine via A3 receptor and A1 receptor and sometimes this effect was receptor independent. The researches showed a differential cytotoxic effect of adenosine and its A3 agonists on cancerous cells, while ot...

background: microglial cells act as the sentinel of the central nervous system .they are involved in neuroprotection but are highly implicated in neurodegeneration of the aging brain. when over-activated, microglia release pro-inflammatory factors, such as nitric oxide (no) and cytokines, which are critical in eliciting neuroinflammatory responses associated with neurodegenerative diseases. thi...

prunus divaricata ( alloocheh ) is a small tree cultivating in iran, middle east and central asia. prunus genus has many species with anti-oxidant, anti-hyperlipidemia and anti-hyperglycemia effects. in the present study the anti-diabetic and anti-hyperlipidemic effects of p. divaricata fruits were examined in normal and streptozotocin (stz)-induced diabetic rats. both groups, control and refer...

here, we report on a ten-year-old girl with chronic draining nonhealing ulcer in her neck and unilateral cervical chronic lymphadenopathy. her ulcer had poor clinical response to broad spectrum antibiotics and anti-tuberculosis treatment. she had undergone several wound biopsies with no conclusive results. she was otherwise healthy with no known underlying disease. final wound excisional biopsy...