Public opposition to genetically modified organisms (GMOs) remains strong. By contrast, studies demonstrate again and again that GM crops make a valuable contribution to the development of a sustainable type of agriculture. The discrepancy between public opinion and the scientific evidence requires an explanation. We argue that intuitive expectations about the world render the human mind vulner...

The detection of genetically modified (GM) materials in food and feed products is a complex multi-step analytical process invoking screening, identification, and often quantification of the genetically modified organisms (GMO) present in a sample. "Combinatory qPCR SYBRGreen screening" (CoSYPS) is a matrix-based approach for determining the presence of GM plant materials in products. The CoSYPS...

Microsporidia is increasingly being reported in the recent years in HIV-positive patients with diarrhoea.[1,2] Electron microscopy, though a gold standard for detection of microsporidial spores,[2] can only be used in sophisticated laboratories. Intestinal biopsy, though better, is not advocated in HIV-infected patients with diarrhoea because of its invasive nature.[3] therefore, trichrome stai...

Figure 2: Histopathological testing. Left ventricular (LV) myocardial tissue with endocardial fibroelastosis, dilated type. (a) Hypocellular fibrous tissue with multiple lamellae of coarse elastic fibres arranged parallel to the luminal surface (van Gieson’s stain, ×200). (b) The endocardium is extremely thickened extending in the subendocardium (Masson’s trichrome stain, ×200). Note that this ...

This report describes the histopathological features of an ossifying epulis, measuring 1.5 × 1 × 1 cm in length, width and height, respectively, on the lingual surface of the lower jaw of a 2.5 year-old parrot cichlid (Hoplarchus psittacus) from a commercial aquarium. The tumor had appeared in the oral cavity three months prior to its introduction to the laboratory for diagnosis. Grossly, the n...

Objective: Entamoeba histolytica is indistinguishable from Entamoeba dispar in direct microscopic examination. A definitive diagnosis of E. histolytica is important in terms of the treatment of the patient and to avoid unnecessary costs. This study’s aim is to determine the prevalence of E. histolytica and to make a comparison of the different diagnostic tests in the patients specimens defined ...

entire lesion was fixed in Bouin's fluid. The specimen was sectioned and stained with hematoxylin and eosin, Bodian's silver impregnation, phosphotungstic acid-hematoxylin, Masson's trichrome, PAS2 -Alcian blue, toluidine blue at pH 2 and pH 4, and Gomori's reticulum stain. This lesion is registered as Specimen RTLA 272 in the Registry of Tumors in Lower Animals, Museum of Natural History, Smit...