RESUMO
The aim of this research was to determine the accelerating effects of microorganisms on the biodeterioration of stone under air pollution and continental-cold climatic region in Erzurum, Turkey. Studies have been carried out on specimens of the Rustempasa Bazaar, the Lalapasa Mosque, the Erzurum Castle Mosque, the Double Minarets-Madrasah, the Great Mosque and the Haji Mehmet Fountain aged from 441 to 823 years old. The results showed that vegetative and reproductive (generative) forms of the microorganisms could develop during the winter months when the night time average temperature was even -25 degrees C. Also the reproductive forms had developed and the whole stone surface was covered with a biofilm caused by the microorganisms. Silicon, aluminum, calcium, potassium, titanium, magnesium, zinc, sulfur, iron, sodium, and niobium were found in the stones of the historical buildings with varying amounts through the SEM-EDS analysis. Some of these elements could be used as an energy resource for the microorganisms together with the air pollutants such as sulfur dioxide, nitrogen oxides and particles on the stone surfaces. Of 21 isolates, 15 species from 6 bacterium genera and 5 species from 5 fungi genera plus 1 fungi genera were identified on the deteriorated stone surfaces even during the coldest months by microbial identification system (MIS) and these findings were tested by SEM investigations.
Assuntos
Actinobacteria/metabolismo , Poluentes Atmosféricos/efeitos adversos , Bactérias Aeróbias/metabolismo , Biodegradação Ambiental , Exposição Ambiental , Fungos/metabolismo , Actinobacteria/crescimento & desenvolvimento , Actinobacteria/ultraestrutura , Poluentes Atmosféricos/análise , Arqueologia , Bactérias Aeróbias/crescimento & desenvolvimento , Bactérias Aeróbias/ultraestrutura , Biofilmes , Clima , Temperatura Baixa , Materiais de Construção , Microbiologia Ambiental , Fungos/crescimento & desenvolvimento , Fungos/ultraestrutura , Microscopia Eletrônica de Varredura/métodos , TurquiaRESUMO
We present a case of constrictive pericarditis resulting in an outpouching of the right ventricular free wall, simulating a right ventricular free wall aneurysm. The present case is, to the best of our knowledge, the first reported right ventricular free wall aneurysm-like outpouching adjacent to surrounding regions of thickened pericardium in a patient with constrictive pericarditis.
Assuntos
Cardiomiopatia Restritiva/diagnóstico , Pericardite Constritiva/diagnóstico , Cardiomiopatia Restritiva/patologia , Diagnóstico Diferencial , Aneurisma Cardíaco/diagnóstico , Ventrículos do Coração/patologia , Humanos , Masculino , Pessoa de Meia-Idade , Pericardite Constritiva/patologia , Pericárdio/patologia , Resultado do TratamentoRESUMO
Exogenous lipoid pneumonia is a rare condition caused by aspiration of mineral, vegetable or animal oils. The aspiration of mineral oil is the most common cause of lipoid pneumonia in children. We present a 27-year-old man with a lipoid pneumonia with a history of daily use of Vaseline applied to cotton balls for ear plugging before swimming and shower.