BACKGROUND & OBJECTIVES Making centrifuged deposit smears from sputum to detect acid-fast bacilli (AFB) is considered hazardous. We carried out this study to stain the centrifuged deposits with carbol-fuchsin in sputum containers and to decolourize and counterstain their smears made on glass slides. METHODS The centrifuged deposits of 180 sputum samples from pulmonary tuberculosis patients we...

Abstract This work presents an assessment of the different decoration techniques applied in two glass windows from Casa-Museu Dr. Anastácio Gonçalves (Lisbon, Portugal) by Optical coherence tomography (OCT). The Dining Room window was found to be decorated with grisailles and acid etching, Atelier grisaille, enamel, cold painting. alteration state surface decorations also assessed. thicker (gri...

Abstract The cleaning or removal of manganese stains on Cultural Heritage has not been much tested successful so far. aim this article was to assess a new green gel for Mn-rich black-blue different substrates. were characterized at optical and chemical level through colour-related data, microscope, FTIR, XRF XPS. Mn-stained granite found historical churches Vila Real (North Portugal) glass jars...

Abstract Stained glass windows are a precious heritage to pass on future generations. However, medieval stained particularly altered due their chemical composition and the effects of climatic (mainly water temperature), environmental (pollution) biological factors. In this review, we present alteration patterns observed ancient Si-K-Ca windows. To better understand formation mechanisms determin...