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Öğe Bacterial and protozoan agents found in Hyalomma aegyptium (L., 1758) (Ixodida: Ixodidae) collected from Testudo graeca L., 1758 (Reptilia: Testudines) in Corum Province of Turkey(Elsevier Gmbh, 2020) Arslan Akveran, Gönül; Karasartova, Djursun; Keskin, Adem; Comba, Arzu; Çelebi, Bekir; Mumcuoğlu, Kosta Yani; Taylan Özkan, Hikmet AyşegülHyalomma aegyptium (L., 1758) (Ixodida: Ixodidae) is a hard tick and the main host for adults are Palearctic tortoises of the genus Testudo, while larvae and nymphs are less host-specific and nymphs also attach to humans. In the present study, a total of 261 H. aegyptium ticks were removed from 26 Testudo graeca L., 1758 in Corum Province of Turkey. The most prevalent pathogens identified molecularly in the ticks were Hemolivia mauritanica (51.9 %), followed by Rickettsia aeschlimannii (32.6 %), Ehrlichia spp. (30.2 %), and Bartonella bovis (0.8 %). All samples were negative for Coxiella burnetii, Francisella tularensis, Anaplasma phagocytophilum, Babesia spp., Hepatozoon spp. and Theileria spp. Overall, 97.4 % of the examined adult ticks and 26.3 % of nymphs were infected with at least one pathogen, while 40.9 % of all ticks were infected with only one pathogen, 27.4 % with two pathogens, and 9.9 % with three pathogens, concomitantly. Overall, 80.8 % of the examined blood smears of tortoises were H. mauritanica-positive, and the mean intensity of parasitemia was 4.8 % (1-21). As a conclusion, since the examined tortoises were sampled in gardens and vineyards close to human habitation, and as a rela-tively large percentage of them were infested with ticks carrying pathogenic agents affecting also humans, the importance of tortoises, their ticks and pathogens in terms of the public health should be farther examined.Öğe Çorum ilinde sokak köpeklerini enfeste eden kene türlerinin belirlenmesi(Refik Saydam National Public Health Agency (RSNPHA), 2020) Arslan Akveran, Gönül; Karasartova, Djursun; Comba, Arzu; Comba, Bahat; Keskin, Adem; Taylan Özkan, Hikmet AyşegülObjective: The Province of Çorum is an endemic area for tick-borne diseases such as the Crimean Congo hemorrhagic fever. The aim of this study was to identify the tick species infesting stray dogs found in the surrounding of human habitations. Methods: Hundred stray dogs kept in the Animal Nursing Home of the Veterinary Service of the province were randomly selected during the period of April 2018 and March 2019. Ticks were removed with the help of forceps and placed in 96% ethyl alcohol and stored at +4°C until they were taxonomically identified. Results: The following tick species were found: Ixodes kaiseri, Hyalomma spp., Rhipicephalus sanguineus, Rhipicephalus turanicus and Haemaphysalis parva. The infestation prevalence was 20%, the infestation density 3.3 (1-7) and the abundance was 0.7. The highest numbers of tick were recorded in June and August, while the lowest in April and May. Conclusion: The number of ticks collected from dogs in this study was relatively low, showing that the efforts of the Veterinary Services to control ticks infesting dogs, is successful. This should lower the possibilities of tick-borne diseases and zoonoses which could be transmitted by stray dogs in the region. © 2020. Turk Hijyen ve Deneysel Biyoloji Dergisi. All rights reserved.Öğe Nicotinamide-modified poly(HEMA-GMA)-Nic cryogels for removal of pesticides(Turkish Chemical Society, 2018) Köse, Kazım; Arslan Akveran, Gönül; Erol, Kadir; Köse, Dursun AliChlordane is only one of the persistent pesticides used in some countries despite the ban. Removal of chlordane, a severe threat to all living things, was performed using nicotinamide-modified poly (2-hydroxyethyl methacrylate-glycidyl methacrylate), poly(HEMA-GMA)-Nic, polymeric cryogels in this study. Poly(HEMA-GMA) polymeric cryogels were synthesized based on previously reported literature procedures and were subsequently modified by nicotinamide moieties. Removal of chlordane in alcoholic medium has been accomplished exploiting the alcoho-phobic interaction, which was the first indication in our previous study. Structural analysis of poly(HEMA-GMA)-Nic was performed using Fourier transform infrared spectroscopy (FT-IR) and elemental analysis methods. Scanning electron microscopy (SEM) was used to understand the surface morphology of cryogels. Surface area and cavity volume calculations were determined by applying N 2 adsorption method and swelling test. The interaction time and maximum adsorption capacity were identified as 5 minutes and 64.61 mg chlordane/g cryogel for 300 mg/L chlordane concentration and 108.818 mg chlordane/g cryogel for 800 mg/L chlordane concentration during the adsorption experiments. Cyclohexane, toluene, chloroform, dichloromethane, acetone, and acetonitrile were used as solvents to observe the solvent effect on adsorption of chlordane onto the polymeric material. As expected, the removal of chlordane was performed with the highest adsorption performance in cyclohexane with the lowest dielectric constant. © 2018, Turkish Chemical Society. All rights reserved.Öğe Reducing lactose content of milk from livestock and humans via lactose imprinted poly(2-hydroxyethyl methacrylate-N-methacryloyl-L-aspartic acid) cryogels(Walter De Gruyter Gmbh, 2021) Erol, Kadir; Arslan Akveran, Gönül; Köse, Kazım; Köse, Dursun AliLactase, which can cause lactose intolerance in its deficiency, is a vital enzyme concerning digestion. To overcome lactose intolerance for patients with digestion problem depending of this kind of issue, lactose in food should be removed. In this study, lactose imprinted poly(2-hydroxyethyl methacrylate-N-methacryloyl-L-aspartic acid), poly(HEMA-MAsp), cryogels were synthesized to reduce the amount of lactose content of milk samples. Occurrence of desired bounds, structural integrity, and surface characteristics were analyzed via Fourier transform infrared spectroscopy (FT-IR), nuclear magnetic resonance (NMR), scanning electron microscope (SEM), micro computed tomography (CT), and confocal microscope methods. Water retention characteristic were tested in solution with different electrolytic nature. Adsorption parameters were optimized in an aqueous medium. The adsorption performance of imprinted cryogels was studied in milk samples obtained from cow, sheep, goat, buffalo, and from human volunteers at different intervals after birth. Amount of lactose adsorbed in aqueous media and milk sample from humans were 322 (56.7%) and 179.5 (5.94%) mg lactose/g polymer, respectively. Selectivity studies revealed an approximately 8-fold increase in adsorption rate of molecularly imprinted cryogels as compared to that of nonimprinted cryogels. In addition, competitive adsorption was conducted using lactose-imprinted cryogels in aqueous media containing lactose, glucose, and galactose molecules resulting in adsorption rates of 220.56, 57.87, and 61.65 mg biomolecule/g polymer, respectively.Öğe Solvent effect on endosulfan adsorption onto polymeric arginine-methacrylate cryogels(Springer Verlag, 2018) Arslan Akveran, Gönül; Köse, Kazım; Köse, Dursun AliEndosulfan is a persistent insecticide that is still used in some countries even though it is life-threatening and banned in the agricultural struggle. The solubility of pesticides in water is negligible. It is known that pesticides with better solubility in organic solvents have different solubility when the dielectric constants of these solvents are taken into account. The polymeric structure of arginine was modified with methacrylate to be a functional monomer, and it was immobilized on a solid support, poly(HEMA), and finally, poly(2-hydroxyethyl methacrylate-arginine methacrylate) was obtained and used as an effective adsorbent. The effect of organic solvents on endosulfan adsorption was investigated for the first time in the literature. Endosulfan was removed from alcohol media by using this polymeric structure synthesized by exploiting alcoho-phobic interaction in this work. Nuclear magnetic resonance (NMR), elemental analysis, and Fourier transform infrared spectroscopy (FTIR) methods were used for the structural characterization and therefore to prove successful synthesis of cryogels. Morphological characteristics were also investigated by scanning electron microscopy (SEM), an N2 adsorption method, and swelling test. Adsorption experiments were carried out against varying interaction time and concentration parameters in the batch system. Since the alcohol used as a solvent has a pH value close to the ionic strength of drinking water, no change was made in the pH of the solution. Endosulfan molecules dissolved in solvents such as toluene, dichloromethane, acetone, and chloroform were removed using poly(HEMA-ArMA) cryogels to determine the solvent effect on the adsorption of endosulfan. As expected, the removal of endosulfan from the solvent toluene provided the best result. Although the adsorption in toluene is almost 9.5 times higher than that in ethanol, the use of toluene in the adsorption process due to its chemical structure is not feasible. Thus, experiments were carried out in ethanol. © 2018, Springer-Verlag GmbH Germany, part of Springer Nature.Öğe The Activity and Reproductive Pattern of Testudo graeca in Cappadocia Region, Anatolia(Wiley, 2017) Arslan Akveran, Gönül[Abstract Not Available]