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    Acid resistance of alkali-activated concrete
    (Elsevier, 2021) Karakoç M.B.; Özcan A.
    Both alkali-activation concretes, which are becoming more and more common today to reduce carbon emissions, and conventional concretes can be exposed to organic and inorganic acids throughout their service life. Especially in marine building, factory, agricultural, and sewage concrete applications, the acid effect is important. In this study, especially the acid effect on alkali-activation concretes was focused. Deteriorating effect of acids, the characteristics of the acid environments, standards used to determine the acid resistance, and effects of acid on the properties of alkali-activated concretes were investigated. While increasing acid concentration and exposure time to acid increase the losses in the mechanical properties of alkali-activated concretes, methods such as adding additives and decreasing the alkaline solution/binder ratio have been used to reduce these losses. © 2022 Elsevier Ltd All rights reserved.
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    Tularemia: A Case Transmitted from a Sheep
    (1999) Senol M.; Özcan A.; Karincaoglu Y.; Aydin A.; Özerol I.H.
    Tularemia is an arthropod-borne infectious disease caused by Francisella tularensis, a gram-negative microorganism that normally resides in a wide range of wild and domestic animals. The disease is characterized by a sudden onset with high fever, headache, malaise, chills, myalgia, and arthralgia. A short time after exposure, an inflamed and ulcerated lesion rapidly appears at the site of entry. A regional lymphadenopathy follows the cutaneous presentation. Cultures from the lesions or blood generally give negative results. Histopathologic examination reveals either a nonspecific inflammatory infiltrate or an infectious granuloma. The most useful laboratory procedure in the diagnosis of tularemia is serologic tests. Streptomycin, gentamicin, and tetracycline are the drugs of choice in the treatment Quinolones are also effective. Tularemia is fairly rare in Turkey. We present a typical case of ulceroglandular tularemia transmitted from a sheep to a young man.