The aim of the study was to identify pathomorphology brain damage in patients who died COVID-19. Material and methods . Autopsy reports autopsy material 17 deceased with pre-mortem confirmed COVID-19 infection were analyzed. Fatal cases which COVID19 major cause death included study. Five people diagnosed cerebral infarction. Organ samples taken for histological examination during autopsy. Sect...

We describe the motivation and concepts of a validation driven software development process (PTAH). It extends the use-case driven approach defined by Jacobsen et al. (1992) and the unified process described by Jacobsen et al. (1999) by actively integrating end users into the requirements specification and its direct evaluation. Our experience in software projects clearly shows that even graphi...

BACKGROUND The aetiology and pathology of both idiopathic megarectum and idiopathic megacolon are unknown. In particular, it is unknown whether there are abnormalities involving enteric nerves or smooth muscle. METHODS Resected tissue was examined from 24 patients who underwent surgery for idiopathic megarectum, from six patients who had tissue resected for idiopathic megacolon, and 17 contro...

Renal tissues from 208 human necropsies were observed histologically for disseminated intravascular coagulation (DIC). The tissues were stained with hematoxylin-eosin, Mallory's phosphotungstic acid hematoxylin (PTAH) and cationic ferric hydroxide colloid stabilized with cacodylate (Fe-Cac), and tested by immunoenzyme histochemical (IEH) reaction for fibrin-related materials (FRMs). The use of ...

The aim of this study was evaluation of the astrocytes number in different subfields of rat's Hippocampus after spatial learning with usage of Morris Water Maze technique and working memory method. In this study, between 2005-2006 years in Pasteur institute of Iran-Tehran and histological department of Gorgan University with usage of Morris Water Maze and working memory technique, we used 14 ma...

A neoplastic nodular lesion, 2 × 3 cm in diameter, was found in the larynx of a 6-year-old spayed female dog. The tumor was ill-circumscribed, consisting histologically of large round cells with abundant cytoplasm interspersed with small round cells with less cytoplasm and occasional multinucleated cells (myotubes). Immunohistochemically, tumor cells were positive for myoglobin, desmin and vime...