Browsing by Author "Çetin H."

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    Evaluation of "polatlı negotiator mediator leader students" project; [Polatlı Müzakereci-Arabulucu-Lider öğrenci yetişiyor projesinin değerlendirilmesi]
    (Ankara University, 2016) Yıldız D.G.; Çetin H.; Türnüklü A.; Tercan M.; Çetin C.; Kaçmaz T.
    The purpose of this study was to investigate the effectiveness of "Polatlı Negotiator Mediator Leader Students" project which aimed to identify student conflicts among high school students in Polatlı, Ankara, based on changing world values and help them manage and transform their conflicts using innovative and peaceful procedures. During the project, a total of 829 students (394 female and 435 male) from 10 high schools in Polatlı were presented “Conflict Resolution, Peer Mediation and Negotiation Training Program”. The study utilized qualitative research methods and Process Evaluation Interview Questions, Peer-mediation Forms, and Program Evaluation Questionnaire were used for data collection. Research findings showed that mediation training had positive contributions to students’ problem-solving skills, their relationships, their socialization and self-confidence and also led to a decrease in disciplinary incidents at schools. Furthermore, it was also found that 96.5% of the mediation meetings resulted in settlement and agreements. © 2016, Ankara University. All rights reserved.
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    Toxicity of Thiamethoxam on Field-Collected Sand Flies (Diptera: Psychodidae) from Different Regions of Turkey
    (Oxford University Press, 2020) Arserim S.K.; Çetin H.; Yetişmiş K.; Omondi Z.N.; Özbel Y.; Johnson R.
    Phlebotomine sand flies (Diptera: Psychodidae) are the vectors of human and canine leishmaniasis, sand fly fever, and other arboviruses and bacteria. The control of sand flies is recommended by World Health Organization throughout the world. In this study, we investigated the susceptibility of field-collected sand flies against thiamethoxam in Turkey. The adult sand flies collected were from five different locations in three provinces; Yeşilöz and Büyükplnar districts in Antalya province, Develi district in Kayseri province, and Üçplnar and Baylndlrllk districts in Manisa province. They were investigated using two different doses (0.125 and 0.25 g ai/m2) of thiamethoxam under laboratory conditions. After 1-h exposure, all sand flies were found highly susceptible to thiamethoxam and both test doses caused 100% mortality after 24 h. Considering the KDT50 time, flies collected from Yeşilöz district in Antalya province were found to be most sensitive and flies collected from Üçplnar district in Manisa province were found as the most resistance to thiamethoxam. The results show that Turkish sand flies were highly susceptible to thiamethoxam and it can be used for the control of sand flies in the field. © 2019 Published by Oxford University Press on behalf of Entomological Society of America 2019.
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    Determination of sand fly fauna and molecular detection of Leishmania in sand flies in Antalya Province, Southern Turkey
    (Springer Science and Business Media Deutschland GmbH, 2021) Arserim S.K.; Çetin H.; Karakuş M.; Demir S.; Ser Ö.; Töz S.; Balcioğlu I.C.; Ölgen M.K.; Yilmaz B.; Özbel Y.
    Visceral leishmaniasis (VL) and cutaneous leishmaniasis (CL) are diseases transmitted by infected female sand flies. Since the eradication of malaria in Turkey, CL is the main vector-borne disease in the country, with more than 2000 cases per year, making it a significant public health problem. The aims of this study were to carry out an entomological survey in Antalya Province, an endemic area for CL in the Mediterranean Region of Turkey, to identify sand fly fauna and to screen female specimens for the presence of Leishmania parasites (Leishmania infantum, L. tropica, L. major, and L. donovani) using molecular analysis. Sand flies were collected in 42 localities of seven districts in Antalya Province using CDC miniature light traps in two different periods, June 2012 and September 2013. The specimens were kept in 96% ethanol until the dissection was done. The head and genitalia of the specimens were cut for preparing individual slides for species identification. The rest of the body of female specimens was kept separately. The specimens were identified at the species level, and 27 pools were generated according to the locations and species for screening the presence of Leishmania. A commercial kit was used for DNA extractions. Real-time and conventional polymerase chain reaction (PCR) targeting the internal transcribed spacer region (ITS1) were then performed. In total, 1306 specimens comprising nine species belonging to the Phlebotomus genus were collected in the study region, with Phlebotomus neglectus/syriacus (38.82%) the most abundant, followed by P. alexandri (21.67%) and P. tobbi (20.44%). In the 27 pools, Leishmania infantum DNA was detected in four pools containing P. neglectus/syriacus and one pool containing P. tobbi. In conclusion, the sand fly fauna in the Antalya Province is diverse. The probable vector sand fly species are P. neglectus/syriacus and P. tobbi with high dominance (59.26%), which indicates a high risk of CL transmission. The data presented here may help to shed more light on the transmission cycles of the Leishmania parasite in this CL endemic area. © 2021, The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature.