In this work, the effect of multi-walled carbon nanotubes (MWCNT1, MWCNT2, and MWCNT3) with different outer diameters and specific surface areas on the mechanical and electrical properties of cement mortar have been investigated. Various concentrations of MWCNTs were used (0.05, 0.
View Article and Find Full Text PDFIn this work, the effect of biosilica concentration and two different mixing methods with Portland cement on the compressive strength of cement-based mortars were investigated. The following values of the biosilica concentration of cement weight were investigated։ 2.5, 5, 7.
View Article and Find Full Text PDFDiseases of the nasal cavity and paranasal sinuses lead to the development of clinical symptoms, among which difficulty in nasal breathing is among the most common complaints of patients in the practice of otorhinolaryngologists. To prevent the development of synechiae of the nasal cavity in surgery, the following principles are defined: 1) to reduce tissue injury, which is achieved by using modern equipment (endoscopic, laser, radio frequency, etc.); 2) to create a barrier between nearby areas of the nasal mucosa by introducing various intranasal splints; 3) to improve the process of tissue regeneration with the help of medicines (regenerants, reparants, etc.
View Article and Find Full Text PDFCancer is a multi-step process that can be viewed as a cellular and immunological shift away from homeostasis in response to selected infectious agents, mutations, diet, and environmental carcinogens. Homeostasis, which contributes importantly to the definition of "health," is maintained, in part by the production of short-chain fatty acids (SCFAs), which are metabolites of specific gut bacteria. Alteration in the composition of gut bacteria, or dysbiosis, is often a major risk factor for some two dozen tumor types.
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