Browsing by Author "Kara, R."

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Occurrence of Escherichia Coli O157:h7/O157, Listeria Monocytogenes and Salmonella Spp. in Beef Slaughterhouse Environments, Equipment and Workers
(Wiley, 2008) Akkaya, L.; Alisarli, M.; Cetinkaya, Z.; Kara, R.; Telli, R.
Escherichia coli O157/O157:H7, Listeria monocytogenes and Salmonella spp. are major foodborne pathogens and the emergence of these pathogens has been reported in many countries. The aim. of this study was to investigate contamination of the beef slaughterhouse environment, equipment and workers with E. coli O157/O157:H7, L. monocytogenes and Salmonella spp. For this study, 500 swab samples were taken from 19 different points in five privately owned slaughterhouses, their periphery, slaughterhouse equipment and slaughterhouse employees. The presence of E. coli O157:H7/O157, L. monocytogenes and Salmonella spp. was determined with the application of the immunomagnetic separation method. Our study showed that the swabs
A Statistical Approach on Seasonal Population Changes and Habitat Preferences on Coastal and Waterfowl Species Around Ekşisu Reeds (erzincan-Turkey): Using Negative Binomial Regression
(Corvinus University of Budapest, 2021) Azizoğlu, E.; Adizel, O.; Kara, R.
The present study was performed in order to analyze the population density of 55 coastal and waterfowl species belonging to 15 families in Ekşisu Reeds using negative binominal regression models according to their habitat preferences. For this study, Anas crecca was chosen as a reference species. Population changes of 55 different species were interpreted in relation to it. Accordingly, increases by 4.48 fold (p<0.001) in Anas platyrhynchos population, 3.45 fold (p<0.001) in Fulica atra population, 2.45 fold (p<0.05) in Larus armenicus population (p<0.05), and 1.77 fold (p<0.05) in Tadorna ferruginea population were noted. In addition, the population of 19 species decreased. Of the seasons, autumn was taken as a reference, thus a 1.50 fold-increase (p<0.01) was recorded in the winter season. Changes in other seasons were not statistically significant. When the reed habitat was taken as reference, it was determined that there was a 1.33 times increase (p<0.05) in the water surface habitat and 36% decrease in agricultural areas (p<0.05). Meadows and marshland habitats were not found statistically significant. © 2021, ALÖKI Kft., Budapest, Hungary.
Using Poisson and Negative Binom Regression Models on Birds Population İn Dönemeç Delta
(Centenary University, 2018) Durmuş, A.; Yeşilova, A.; Çelik, E.; Kara, R.
The aim of this study to make a statistical estimate to bird populations in Dönemeç Delta using Poisson and negative binom regression models. According to Poisson regression model a deviance statistic greater than one (1) indicates that there is an over-dispersion in the bird’s population. The over-dispersion value in the Poisson regression was much greater than one (156.615). In contrast, the over-dispersion value in negative binom regression was close to one (1.277). Therefore, parameter estimations were interpreted according to negative binom regression. The effects of seasons, habitats and order (ordo) were found to be statistically significant on population density (p<0.05). Summer season when taken as a reference in all seasons only winter season was statistically significant (p<0.05). The population in sandy, farmland and stream edge habitats seen different according to other habitats (meadow, reeds and marshy) (p<0.05). When the Anseriformes ordo is taken as reference only two bird order were insignificant (p>0.05) according to 13 orders. © 2018, Centenary University. All rights reserved.