Sürdürülebilir Kalkınma Amaçları

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• MakaleYalnız künye2022/r/bayburt/15814
  Citizenship literacy scale: development, validity and reliability study

  Karadağ, Ahmet; Kapusızoğlu, Mehmet

  Citizenship Literacy Scale is a scale developed to measure individuals’ level of knowledge and interest in citizenship, their ability to use their right to seek rights and to transform it into actions. The statements in the scale were created as a result of unstructured interviews and literature review. The content validity of the Citizenship Literacy Scale was ensured, and exploratory and confirmatory factor analyzes were conducted to ensure construct validity. According to the results of the exploratory factor analysis, the scale consisted of 29 statements gathered under 4 factors and explained 65,573% of the total variance. After the exploratory factor analysis, confirmatory factor analysis was performed and the model's goodness-of-fit indices were examined. Goodness of fit values as a result of confirmatory factor analysis; χ2 = 1430,423; df=363, p= .000; χ2/df= 3.941; RMSEA = 0.052; SRMR = 0.051; GFI=0.912; AGFI=0.901; TLI= 0.944; CFI=0.950; IFI = 0.950; NFI=0.934; RFI=0.926 was found. According to these values, it was understood that the Citizenship Literacy Scale showed excellent fit for CFI and IFI, χ2/df, good fit for RMSEA, SRMR, GFI, NFI and RFI. All the results obtained showed that the Citizenship Literacy Scale, which was developed, is a valid and reliable measurement tool for measuring the citizenship literacy levels of individuals.

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• MakaleAçık Erişim2022Scopus SJRQ3/r/bayburt/11921
  Investigation of biological activities of plant extract and green synthesis silver nanoparticles obtained from Gilaburu (Viburnum opulus L.) fruits

  Şahin, Birgütay; Bülbül, Ali Savaş; Çelik, I. Seyfettin; Korkmaz, Nesrin; Karadağ, Ahmet

  In this study, biological activities of silver nanoparticles (AgNP) synthesized by green synthesis method using the fruit extract of Gilaburu (Viburnum opulus L.) plant were investigated. The characterization of the synthesized AgNPs was performed by ultraviolet visible region spectroscopy (UV-Vis), Fourier transform - infrared spectroscopy (FTIR), scanning electron microscopy (SEM), and X-ray diffraction (XRD) techniques. The crystal size was found to be 52.32 nm when the XRD data were calculated with the Debye-Scherrer's equation. The antimicrobial activities of extract and AgNPs were investigated by microdilution and disk diffusion methods. Antibiofilm activities were examined by the crystal violet technique. The cytotoxic effects of the extract and AgNPs against MCF-7 (human breast cancer) and HUVEC (human umbilical vein endothelial cells) cell lines were evaluated by MTT assay. The IC50 values for the HUVEC line were found to be 0.97 mg/mL (AgNP) and 85.24 mg/mL (extract), while the IC50 values for the MCF-7 line were determined as 0.022 µg/mL (AgNP) and 0.021 µg/mL (extract). To our knowledge, this is the first report to comprehensively examine the biological activities of V. opulus L. extract and biosynthetic AgNPs.

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  AtıfScopus11·WoS11·OpenAlex10·TR Dizin1

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